JPH034114A - Perpendicularity indicator - Google Patents

Abstract

PURPOSE:To accurately obtain a perpendicular line by providing a line or mark which indicates the exit of laser light which is projected perpendicularly. CONSTITUTION:When the intersection of lines 6 and 7 is aligned with a reference point 29 or reference line 30 on a floor, the deflection of a laser head 2 is converged a certain time later and the laser light from the laser projection hole 31 indicates a perpendicular line. Here, balance is adjusted by a balancer 10 so that the laser light is perpendicular. Here, the floor is normally made accurately horizontal by a level, so the point on the floor can be moved onto the perpendicular line by this method with considerable accuracy.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a vertical indicator that indicates lines and points that are vertically moved up from a certain point on the ground.

Conventional technologyI used to know the vertical point in the fields of architecture, civil engineering, etc.
A plumb bobbin like I 3 [ is used, however, the plumb bob sways due to the influence of the wind, and the new plumb bob has a strong twisting force on the thread and does not stop quickly, so the vertical point cannot be adjusted. It took a lot of effort to find out. *Ta. At Ken WaS, it was extremely rare for there to be no wind, so the needles almost never stopped, and the verticality was often quite off. As a result, even in the latest high-rise buildings, the verticality of the upper floors can vary by as much as 50 centimeters or even 1 meter.
In most cases, the difference is compensated for by the interior design.

In order to solve the above-mentioned aJl, a vertical indicator was developed as shown in j11213i.Hereinafter, it will be explained using the jar in Fig. 12. In the figure, 25 is a helium neon gas laser and a gimbal 26 always points it to the center of the earth. The laser beam is adjusted so that it is directed toward the *Ta. 27 is a lens for focusing the laser beam.The principle of the vertical indicator in the same figure is to set the lower end of the straight laser beam emitted from both ends of the helium neon gas laser to a certain reference point on the ground, and then to adjust the vertical direction from the upper end. This takes advantage of the fact that laser light is emitted. With this method, a vertical line can be obtained without being affected by the wind or the return of the thread. However, the above configuration has the following various problems. First of all, in order to move the main body so that the laser beam from the bottom matches the point underground, the helium gas laser inevitably oscillates, and you have to wait for it to come to rest and then move the main body again to correct the misalignment. If you move it, you have to wait for it to come to rest again, which takes a lot of effort. Also, in order to focus the laser beam from the top,
It is necessary to move the lens pot up and down for focusing, but if the lens is even slightly distorted due to processing precision, there is a problem that the optical axis will shift significantly just by changing the focus. Furthermore, since the method moves the point on the floor upward, when building a multi-story structure, it is necessary to set a vertical indicator on the frame on intermediate floors, but in this case a helium neon laser is used. However, with a gimbal structure, a large load is placed on the support bin due to the weight, which increases hysteresis due to friction and makes it difficult to improve accuracy. There were also some issues.

Therefore, in order to solve the above problems, the present invention has been developed to solve the above problems.

To provide a vertical indicator that can accurately obtain a vertical line simply by placing it at a reference point or setting it on a steel column wall.

Another object of the present invention is to provide a vase that can be used to obtain a vertical line by placing it on the floor, and also to provide a vertical line that can be obtained by simply placing it on an iron pole standing vertically. Still another object of the present invention is to provide a vertical/horizontal indicator which also has the function of indicating the horizon by attaching a mirror or beam splitter that vertically reflects the laser beam.

Further, the technical means of the present invention for solving the above-mentioned problems of @6 is as follows: (1) To convert the visible light semiconductor laser and the beam emitted from the semiconductor laser described in III into parallel light. The optical system J1! is built in the same tube, and the optical axis of the parallel light from the semiconductor laser is directed vertically. A laser head is formed by including a cod and a balancer for the purpose of the laser diode, and the laser head is suspended from the case with a gimbal #IR structure, and the rotation center of the gimbal is aligned with the center of the optical axis from the semiconductor laser. In the case, the optical axis center is located opposite to the center of the optical axis,
Parallel or perpendicular! Consists of signs that indicate something.

(2) In the laser head of the vertical indicator according to claim 1, the lower part of the weight is sharpened, and the adjustment mechanism is such that the tip of the lower weight is located on the extension line of the parallel laser beam in the vertical direction when it is stationary. A hole is made in the case so that the floor surface and the tip of the lower part of the weight can be seen from outside the case.

(3) the vertical indicator according to claim 1 or claim 2;
A magnet is attached to the side surface of the case, and a light receiving plate is provided to indicate the position of the exit of the laser beam emitted from the vertical indicator.

(4) A reflecting mirror or a beam splitter that vertically reflects the laser beam emitted from the laser is attached to the vertical indicator according to claim 1 or the vertical indicator according to claim 2.

(5) The vertical indicator according to claims 1 and 2 can be fixed so that the surface on which it is placed when it is laid down is parallel to the laser beam emitted from the emission aperture. Add a fixing mechanism.

(6) With respect to the vertical indicator described in claim 1 and ring 2, the mechanism for rotating the laser head around the rotation center of the gimbal or the exit beam center can be narrowed down (7) claim 6 Point the light-receiving surface that can detect the position where the laser beam is irradiated onto the vertical indicator, and point it toward the center of the circle created by the irradiation point on the light-receiving surface generated by the rotation of the laser head. An automatic control sW4 is provided to adjust the balance of the center of gravity of the laser head.

For production The effect of this technical means is as follows.

Since a fixed lens is used, the optical axis does not shift due to lens movement. 5mm even 10m away
~10 mm fl At the center of the weak light circle of 11 degrees,
A strong core of light with a diameter of Inm or 3mm appears, so the distance is 5m.
Weak light of m to 10 mmg and 11 degrees is convenient for locating the marker, and 1 mm to 3 mm can be used to make accurate marks, and a simple configuration can produce great effects. In addition, because the above structure allows the main body to have a small loading capacity, in the case of JLL's invention, if the levelness of the floor is not too out of order, just by placing the center on the reference point on the line on the case, it can be placed on the floor with high accuracy. The reference point of can be moved vertically upward using laser light. Also, jll
Since the vertical indicator of the present invention according to the invention of item 3 can be made small in weight, it can be easily attached to a steel pole. By changing the inclination of the steel pole, you can easily make it vertical. Further, according to the fourth aspect of the invention, a horizontal line can be easily obtained by attaching a reflecting mirror or a beam spiriter to the laser head.

Furthermore, according to the invention of tJ5, the laser beam is emitted in parallel to the plane of the case, so it is possible to obtain a horizontal line by placing it on a horizontal table, or to check the linearity.

Also, I! According to the invention of No. 6, even if the verticality deviates for some reason, accurate verticality can be obtained.

In addition, the invention of 9J7 further adds a correction mechanism, making it even easier to handle.

Embodiments Examples of the present invention will be described below with reference to the drawings. In addition, in the following drawings, the same functional parts are given the same numbers.

Act IIi No. 1 No. 11i is a vertical indicator in the first embodiment of the present invention. In the figure, l is the main body, 2 is the laser head, 3 is the gimbal, 4 is the dispersion, 5 is the power II, 6 and 7
is a line on the case, and the line is drawn so that the vertical laser beam 9 overlaps the intersection line 8 of two planes formed by these two lines.

12 (I is an internal configuration diagram of the laser head 2 in a state combined with the gimbal 3. In the same figure, 10 is a balancer,
13 is a weight, 16 is a laser beam focusing lens, 17 is a visible light semiconductor laser, 11 is a semiconductor laser drive circuit,
Reference numeral 12 refers to the gimbal configuration pin 0th order III, and the effect of 1i on the configuration of this embodiment will be explained.

When the intersection of the line 6 and the edge 7 is placed on the reference point 29 or the reference line 30 on the floor, the laser head 2 will stop swinging back for a certain period of time, and the laser beam from the laser exit port 31 will show a vertical line. become. Note that it is assumed that the balance is adjusted using a balancer 10 so that the laser beam is directed vertically.

Normally, the floor is leveled with high accuracy using a spirit level, so using the above method you can move the point on the floor to the vertical line with high accuracy.

Embodiment 2 FIG. 3 shows a laser head according to an embodiment of the 12 inventions.
In the figure, the tip of #113 has a mechanism that can be adjusted so that it is on the support a8 when it is stationary, and by moving the screw 28 back and forth, the inclination of the output nozzle 32 can be changed**.

Like this *J! This will be explained using the laser head.

If you set the peephole 14 so that the point on the floor matches the tip of the weight 13, you can obtain a parallel laser beam from the plumb line of the reference point on the floor even if the floor is not level. .

Embodiment 3 FIG. 4 shows a vertical indicator according to a third embodiment of the present invention.

In this figure, the difference from Figure 1 is that a light receiving plate 15 with an iron pole is provided on the main body 1.The light receiving plate 15 of the embodiment (1) is made of a transparent or opaque material and is made of a line perpendicular to the magnet 2o. A line 21 parallel to 19 is marked with a scale.

In addition, the distance to the intersection (d) of 19 and 21 and the (C
) to (b)! ! Relationships and distances are placed at equal points. The light-receiving plate is equipped with a magnet like the main body, and when it is set on an iron pole, the main body 1 and the light-receiving plate 15 can be seen as a vertical nod. Therefore, in order to stand the steel pole vertically, tighten the foundation bolts of the steel pole so that the laser beam point is at (d)! 19I! , it becomes possible to erect a steel pole vertically with great ease and accuracy.

Note that instead of the light receiving plate, a sticker may be attached to the upper horizontal frame to adjust the inclination of the steel column in the same manner as above.

Implementation N, 4 9J5 figure is of the present invention! ! FIG. 4 is a perspective view of a vertical indicator in Example 4;

The difference in this figure from Figures 1II to 3 is that a reflecting mirror is provided on the laser exit side of the laser head 2 with an angle of 45 degrees to the laser beam.

The reflector attachment 22 is generally balanced so that the center of gravity is at the center. Therefore, according to this embodiment, vertical laser light is easily converted into horizontal laser light by this attachment. 11. If the attachment 22 is made horizontally rotatable, horizontal and vertical planes can be easily obtained in space, and not only a vertical line but also a horizontal line can be obtained with the same indicator. Further, in the embodiment II4, as shown in Fig. 116, an attachment is provided on the upper surface of the main body 1 placed on a horizontally adjusted table 25, with a reflecting mirror that is inclined at an angle of 45 degrees with the upper surface of the main body 1. A similar effect can be obtained by adding 22. Also,
Figure // shows an embodiment of the fourth invention in which a beam splitter 32 is used to simultaneously obtain vertical and horizontal light. The beam splitter 32 has a 45-degree half-shape, and 90-degree light can be obtained from the 11 direct light, so horizontal and vertical beams can be obtained at the same time.

Embodiment 5 Figure 17 is a perspective view of the vertical indicator in the m5 embodiment of the present invention. This is the fixing mechanism of Example II, and by setting the lever 33 to the a side, the head can be fixed, and by setting the lever 33 to bm, the head 2 can be made free.

Example 6 Figure 8 shows the method of the present invention! In Figure 0, which is a perspective view of the vertical indicator in the J6 embodiment, 34 is a rotation mechanism that rotates the cymbal 3 at a low speed, and a motor 35 rotates the laser head 2 about the rotation center of the gimbal.

This rotation mechanism makes the center 36 of the elliptical trajectory of the light hitting the light receiving plate an accurate vertical point.

Embodiment 7 In figure 0, which also shows the vertical indicator in the 17th embodiment of the present invention, the point hit by the light is shown as '
It is a position detector 37 (PSD) that detects the light, and a control device I that adjusts the balance mechanism so that the optical axis is directed to the center of the circle formed by the light receiving point! 38 is added, the light receiving point is automatically fed back to become a point on the vertical line, and a stable vertical point is obtained.

Inventions 11 to fJ7 of the present invention are in addition to the above embodiments.
It can be configured to various ams. Instead of supplying power to the laser head with a thin wire, the fixing pin 23 of the gimbal 3 is electrically woven with an insulating material 24 as shown in figure W9.
It is also possible to avoid being affected by the power line 5 at all by supplying power by using the same power, or to speed up the deflection of the laser head 2 as shown in Fig. 10. The filter 40 and the magnet 41 form a W4 structure, which may be used to control the electromagnetic damper 42 to prevent changes in the magnetic field, and to direct the optical axis in the vertical direction.
Although a balancer was provided, other balance R11 methods, for example,
You can also use a method of cutting the weight, or you can separate the lens holder in the laser head 2 and adjust the focal length arbitrarily! i
l[, may be.

The mechanism that can move the visible light semiconductor laser element in the horizontal direction or the mechanism 39 that changes the inclination as shown in FIG. .

Alternatively, the drive circuit 11 may not be built into the laser head 2 but may be placed outside.

In addition, in the above embodiment, the parallel laser beam in the vertical direction overlaps the intersection line 8 of the two lines 8°7, but the rotation center of the laser opening 3 and the gimbal 3 are close to each other. In this case, even if the center of rotation of the gimbal 3 is arranged so as to overlap the line of intersection 8, there will not be much error, so this configuration may be used. However, since the center of the marker can be read at any size, it may be used.

It will be done.

Effects of the Invention As described above, according to the first invention, since there is a line or mark indicating the exit position of the laser beam emitted in the vertical direction, all that is required is to align it with the reference line or reference point on the floor surface. in,
The vertical line is simply obtained as a laser beam.

According to the invention of ff12, since a line or a window for setting a point on the floor is provided in one main body, a vertical line can be obtained with high accuracy.

According to the invention of ff3, a laser light receiving plate is provided, and a magnet is attached to the light receiving plate and the vertical indicator to be attached to a steel pole, so it is possible to easily attach it to a steel pole and easily know the deviation from India. can.

According to the fourth invention, a horizontal reference line of a visible laser can be obtained by simply providing a reflector or a beam splitter in a 90-degree direction, and vertical and horizontal reference lines can be obtained with the same main body.

According to the fJ5 invention, the laser head fixing mechanism prevents the precision of the head itself from deteriorating even if it shakes during transportation, and also fixes the laser beam parallel to one side of the case when it falls. According to the 16th invention, the center of the light-receiving circle is always accurate even if the vertical indication is out of order for some reason.

Further, according to the seventh invention, accurate vertical indication can always be obtained by the feedback mechanism.

[Brief explanation of the drawing]

Fig. 1 A vertical indicator according to an embodiment of the present invention! 2111
Figure 3: Laser head according to 11 aspects of the present invention Figure 4: Laser head according to 12 aspects of the present invention Figure 3: Laser head according to 11 aspects of the present invention
Vertical indicator in the 11!4 embodiment of the present invention Figure 5 Vertical indicator in the 11!4 embodiment of the present invention Figure 7 Vertical indicator in the fifth embodiment of the present invention Figure 7 In the sixth embodiment of the present invention Vertical indicator Fig. 8 Vertical finger in the seventh embodiment of the present invention Fig. 9 Fig. 10 Fig. 11 Fig. 12 Indicator Conventional vertical indicator Figure 13 The main body of the jinnokuru using a conventional sagefuri bearing. 2 Laser head, 3 Gimbal 0 Reference line on the floor. 31 Exit port. 〉3

Claims (7)

[Claims] (1) A visible light semiconductor laser and an optical system for collimating the light emitted from the semiconductor laser are built into the same tube, and the optical axis of the parallel light from the semiconductor laser is directed vertically. A laser head is configured with a peg and a balancer for adjustment, and the laser head is suspended from a case with a gimbal structure, and the center of rotation of the gimbal is aligned with the center of the optical axis from the semiconductor laser. In the case, the vertical indicator is composed of a mark indicating that the optical axis is parallel or perpendicular to the center of the optical axis. (2) In the laser head of the vertical indicator according to claim 1, the lower part of the weight is sharpened, and an adjustment mechanism is provided so that the tip of the lower weight is placed on the extension line of the parallel laser beam in the vertical direction when at rest. A vertical indicator provided in the case with a peephole open so that the floor surface and the tip of the bottom part of the base can be seen from outside the case. (3) the vertical indicator according to claim 1 or claim 2;
A vertical indicator, characterized in that a magnet is attached to the side surface of the case, and a light receiving plate is provided to indicate the vertical position that the laser beam of the vertical indicator emitted from the vertical indicator should originally indicate. (4) The vertical indicator according to claim 1 or the vertical indicator according to claim 2 is equipped with a reflector or a beam splitter that vertically reflects laser light emitted from the laser. Vertical indicator. (5) A fixing mechanism capable of fixing the vertical indicator according to claims 1 and 2 so that the surface on which it is placed when it is laid down is parallel to the laser beam emitted from the emission port. Vertical indicator with added. (6) The vertical indicator according to claims 1 and 2, further comprising a mechanism for rotating the laser head around a rotation center of a gimbal or an output optical axis. . (7) The vertical indicator according to claim 6 is provided with a light-receiving surface that can detect a position irradiated with laser light, and a circle formed by the irradiation point on the light-receiving surface generated by rotation of the laser head. A vertical indicator, characterized in that it is provided with an automatic control mechanism that adjusts the balance of the center of gravity of the laser head so that it points toward the center of the laser head.