JPH052811Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention is applicable to tatami mats, which are used, for example, to measure stains, ink-glue measurements, and bending curves required for measuring the size of tatami mats. Regarding laser sizer.

(B) Prior Art When measuring the size of the tatami mat described above, as shown in FIG. to stop the stabbing,
Next, each of the opposing locking needles 23...between the threads 24, 2
4, place the L-shaped scale 25 at the intersection of both threads 24, 24, and tighten both threads 24, 24.
the other locking needles 23, 2 so that they align with the center lines 25a, 25a of the L-shaped scale 25.
Finely adjust the stitching position of 3, and then insert both threads 2
By measuring the length of 4.24, the dimensions of the room frame necessary for measuring the tatami were obtained.

However, in the case of the measurement in which the thread 24 is stretched,
Measuring the dimensions of the position where the locking needle 23 is inserted and thread 24
Since the intersections of the threads are adjusted at right angles with the L-shaped scale 25 and the length of the thread 24 is measured, the measurement is time-consuming and results cannot be obtained immediately. , there is a problem that errors tend to occur depending on the tension, making it impossible to perform accurate measurements.Also, as a way to solve the above problem, for example, if a retractable ruler is used, this ruler can be stretched. However, since it bends or bends at the middle part, there is a problem in that errors are likely to occur in measurements when measuring the dimensions of a large room frame.

(c) Problems that the invention aims to solve This invention uses a unique configuration in which a vertically elongated laser is irradiated horizontally in all four directions, front, back, left, and right, and a cross-shaped laser is irradiated directly below. To provide a laser sizing device for tatami mats that can accurately measure the dimensions of a room frame without the necessary errors, and can also quickly and accurately measure the tatami mats in a large room.

(d) Means for solving the problem This invention fixes a laser emitting tube that emits a laser directly downward on the top of a base supported by a column, and places a horizontal front and back beam at the laser emitting position at the bottom of the base. A first and a second spectroscopic section that separate the laser beam vertically in the horizontal direction, a third and fourth spectroscopic section that separate the laser beam vertically in the horizontal left-right direction, and a fifth spectroscopic section that separates the laser beam in a crosswise direction directly below. The first, second, third and fourth spectroscopic sections are formed with half mirrors arranged in series at a 45 degree inclination in order to separate the laser beam in each direction. The laser sizing device for tatami mats is characterized in that it is formed by a cylindrical lens that polarizes the separated laser into a vertically long and thin shape, and the fifth spectroscopic part is formed by a projection plate 14 on which a cross image is formed.

(e) Effect of the invention According to this invention, the tatami mat laser measuring device is placed in a designated position in the center of the room, and a long, thin laser is emitted in all four directions (front, back, left, right) at the designated positions of the tatami mat width and length on the threshold surface. This makes it easy to set the laser irradiation position, and also eliminates the need for the conventional process of fastening with a needle or stretching a string. Moreover, since the laser does not stretch or shrink like a string, the accurate dimensions of the room frame can be measured based on the laser emitted in all four directions. At the same time, since the laser travels in a straight line without bending or warping along the way, it is irradiated at right angles to the threshold surface,
Even when measuring tatami mats in a large room, accurate measurements can be made without any errors.

In addition, by placing the tatami laser sizer at a position along the sill surface, the laser is emitted at a distance parallel to the sill surface, and the curl of the sag can be measured using the emitted laser as a reference.

Furthermore, since the tatami laser sizing device emits a cross-shaped laser directly below, for example, when the tatami laser sizing device is placed at the reference position of a predetermined dimension from the sill surface, taking out the standard dimension will be difficult to do without using the scale. By placing the tatami laser sizer on the floor and moving it while looking at the crosshair laser irradiated on it, it can be easily, easily, and accurately measured, making the above-mentioned curved wood measurement even more accurate. .

By taking these measurements, accurate measurements of the tatami mat can be made.

(F) Embodiment of the invention An embodiment of the invention will be described below in detail based on the drawings.

The drawings show a tatami laser sizer used to measure tatami mats. In Figures 1 and 2, the tatami laser sizer 1 has a laser emitting device 3 vertically fixed to the top of a base 2. A laser 4 emitted directly below from a laser emitting device 3 is placed at the bottom of the base 2.
It is constructed by fixing a spectroscopic device 5 that separates the light into four horizontal directions (front, rear, left and right) and in the direct downward direction.

As shown in FIG. 1, the base 2 described above has four length-adjustable columns 2b vertically fixed at the four corners of a rectangular substrate 2a.

As shown in FIG. 2, the above-mentioned spectroscopic device 5 includes a first spectroscopic section 6 and a second spectroscopic section 7 that separate the laser 4 in the front-back direction, and a third spectroscopic section 8 and a fourth spectroscopic section that separate the laser 4 in the left-right direction. part 9, and a fifth part that disperses light in the direction directly below.
It consists of a spectroscopic section 10.

As shown in FIG. 3, each of the above-mentioned spectroscopic sections 6, 7, 8, and 9 has a transparent filter in the emission direction of the laser 4 emitted from the laser emitting tube 11 in the laser emitting device 3, that is, in the direct downward direction. 4 made of parts
Each half mirror 12... is arranged in series at an angle of 45 degrees to opposite sides, front, rear, left, and right.
As shown in FIG.
It is reflected in the horizontal direction at the boundary surface of the tatami mat laser 2, and is polarized vertically by the cylindrical lens 13 fixed at the laser 4 reflection position of the first spectrometer 6. irradiate.

On the other hand, a part of the laser 4 that has passed through the half mirror 12 is reflected by the half mirror 12 of the second spectroscopic section 7 and is irradiated forward through the cylindrical lens 13.

Similarly, the half mirror 12 of the third spectroscopic unit 8
The laser 4 reflected by the beam is emitted to the left.

The laser 4 reflected by the half mirror 12 of the fourth spectroscopic section 9 irradiates in the right direction.

As shown in FIG. 3, a part of the laser 4 that has passed through the half mirror 12 of the fourth spectroscopic section 9 is irradiated onto the projection plate 14 of the fifth spectroscopic section 10 directly below, and this projection plate A cross image 14a formed at 14 is irradiated directly below.

In addition, as shown in FIG. 2, the above-mentioned spectroscopic device 5
A cover 15 is fixed to the outer surface of the , and this cover 15 has 4 laser emitting positions on the front, rear, left and right sides,
A round window 15a is located directly below the projection of the cross image 14a.
...is opened.

Further, as shown in FIG. 1, the laser emitting device 3 described above is provided with a power switch 16, an energization indicator lamp 17, and a firing button 18 for emitting the laser 4 on the outer surface, and on the side thereof. A power cord 19 is connected, and a spirit level 20 is fixed at the bottom.

When using the laser tatami size measurer 1 configured in this way to measure, for example, a six-tatami mat, as shown in FIG. position, and finely adjust the length of each support 2b of the base 2 so that the bubble of the spirit level 20 is located at the center of the scale so that it is in a horizontal state.

Next, turn on the power switch 16 of the laser emitting device 3.
After turning ON, press the firing button 18 to fire the laser 4 from the laser firing tube 11.

As shown by the arrows in FIG. 3, this laser 4 is partially reflected by each half mirror 12 in the spectrometer 5, and then reflected by each cylindrical lens 13...
The vertically elongated laser 4 is emitted horizontally in all directions, front, rear, left, and right through..., and irradiates a vertically elongated laser 4 at a predetermined position on each threshold surface 22, that is, at the width and length of the tatami mat.

At the same time, the cross image 14a formed on the lower projection plate 14 is projected onto the floor directly below by the laser 4 that passes through each half mirror 12 in the direction directly below.

In this way, since the vertically elongated thin laser 4 emitted in all directions is irradiated to a predetermined position on each threshold surface 22, it is easy to set the irradiation position of the laser 4.
At the same time, using this laser 4 as a reference, it is possible to accurately measure the dimensions of the room frame without any errors.

Also, since laser 4 travels straight,
Even if the room 21 becomes larger, the beam will not be bent or distorted in the middle, and the irradiation will be perpendicular to the threshold surface 22, allowing accurate measurement even when measuring the size of a tatami mat in a large room.

Furthermore, as shown by the imaginary line in FIG. For example, based on
When measuring the plane of the ruler perpendicular to the laser 4, the vertically long thin laser 4 is irradiated vertically on the plane of the ruler, making it easy to measure dimensions, and the position and position in the figure and other multiple positions can be easily measured. You can easily measure the curl of the wood, and by making these measurements, you can accurately measure the dimensions of the tatami.

Note that the half mirror 12 in the above-described embodiment may be constructed of a prism or the like that has a reflective function and is formed to be able to transmit the laser 4 directly below; however, this invention is not limited to the configuration of the embodiment. isn't it.

Note that the spectroscopic means constituting this invention corresponds to the half mirror 12, cylindrical lens 13, and projection plate 14 of the above-mentioned embodiment.

[Brief explanation of the drawing]

The drawings show one embodiment of this invention; Fig. 1 is a perspective view of a laser tatami sizer, Fig. 2 is an enlarged side view of the main part of the tatami laser sizing device, and Fig. 3 is an inside view of the spectroscopic device. An explanatory diagram of the structure, Fig. 4 is a partially enlarged explanatory diagram of Fig. 3, Fig. 5 is a plan view of the room to explain the state of use,
FIG. 6 is a plan view of a room illustrating the conventional method of measuring tatami mats. 1... Laser sizer for tatami mats, 2... Base, 3...
... Laser emitting device, 4 ... Laser, 5 ... Spectrometer, 11 ... Laser emitting tube, 12 ... Half mirror, 13 ... Cylindrical lens, 14
...Projection board, 14a...Cross statue.

Claims (1)

[Claim for Utility Model Registration] A laser emitting tube 11 that emits a laser directly downward is fixed to the upper part of the base 2 supported by the support 2b, and the laser emitting tube 11 is placed at the lower part of the base 2 in the horizontal front and rear direction. A first spectroscopic section 6 and a second spectroscopic section 7 separate the laser beam vertically, a third branch section 8 and a fourth spectroscopic section 9 separate the laser beam vertically in the horizontal left-right direction, and separate the laser beam in a crosswise direction directly below. A fifth spectroscopic section 10 is formed, and the first spectroscopic section 6, second spectroscopic section 7, third spectroscopic section 8, and fourth spectroscopic section 9 are tilted at 45 degrees in order to separate the laser beam in each direction. It is formed by half mirrors 12 arranged in series and a cylindrical lens 13 that polarizes each of the separated laser beams in a vertically long and thin manner, and the fifth spectroscopic section 10 is formed by a projection plate 14 on which a cross image 14a is formed. Taker.