JP2747742B2 - Laser beam receiver for surveying - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial applications]

[0001] The present invention relates to planes perpendicular to each other so that each new point on a vertical plane, each new point in a perpendicular direction, or each new point on a horizontal plane can be easily obtained in construction surveying or the like. The present invention relates to a surveying laser beam receiver for determining an intersection of the two sets of laser beams in a laser beam emitter having at least two sets of radiation optical systems for rotating and irradiating a laser beam along the top.

[0002]

2. Description of the Related Art Prior to construction, in surveying a construction site for finding a new point to be used as a reference for construction, there are surveying methods for setting various angles. It can be easily understood from the fact that the majority of buildings are composed of right angles.

FIG. 7 shows an example of a conventional survey using a theodolite for setting a right angle. When a new point C is provided in a direction perpendicular to the existing points A and B, a theodolite D is placed on the existing point B. install. The existing point A is collimated with theodolite D. Turn theodolite D 90 °. The surveying engineer E indicates by hand the point to be collimated with the theodolite D. According to the instruction of the surveyor E, the setting worker F
Mark. Surveying was performed according to such a procedure.

As described above, when construction surveying is performed using a conventional theodolite by a conventional survey method, a target is collimated with theodolite D, or the theodolite D is collimated.
A surveying technician E for turning the robot is indispensable. And these operations require skill and skill. The marking work of the new installation point C is indirectly performed by the setting worker F in accordance with the instruction of the surveying engineer E, so that it takes time.
Easy to be uncertain. There was a problem.

[0005] The inventor of the present application, November 2, 1990
According to the patent application filed on December 7, 1990 or December 14, 1990, basically, as shown in FIG. 5, at least two sets of radiation optical systems for emitting laser beams emitted from a light source 6 as laser beams L1 and L2. And a rotary irradiator for irradiating the laser beams L1 and L2 emitted from the two sets of radiation optical systems onto surfaces orthogonal to each other, respectively. is there.

That is, in the case of the embodiment shown in FIG. 5, the laser beams emitted from the radiation lenses 8 of the two radiation optical systems arranged in the direction perpendicular to the plane parallel to the plane of the paper are each a two-surface reflecting member. 13 is projected toward the two-sided reflecting member 13
Are rotated by a motor 15, and the laser beams L1 and L2 emitted from the two-surface reflecting member 13 are configured to irradiate on surfaces V1 and V2 perpendicular to the plane of the drawing and orthogonal to each other.

Therefore, if the directions of the laser beams emitted from the two sets of light sources 6 are both set on a horizontal plane, the laser beam L
1, L2 are perpendicular planes V1, V2, respectively, which are orthogonal to each other.
The configuration is such that the upper part is irradiated with rotation. In the drawing, reference numeral 7 denotes a compensator for keeping the laser beams L1 and L2, which are irradiated by rotation regardless of the inclination of the body of the light emitter S, always vertical, and 9 denotes an electronic circuit board for driving the light source 6, the motor 15, and the like. Reference numeral 10 denotes a power source, 14 denotes a two-sided reflection member support frame, 16 denotes a laser beam emission window, and 17 denotes a motor support frame.

An example of surveying for setting a right angle using the laser beam emitter will be described with reference to FIG. 6. A laser beam emitter S is located at an intersection of laser beams L1 and L2 located near the emitter S. P (the intersection of the intersections forms a vertical line) is installed so as to coincide with the existing point B. One rotation irradiation laser beam L1 is made to coincide with the existing point A. The setting operator F directly marks the point irradiated with the other laser beam L2 orthogonal to the laser beam L1. The procedure is as follows.

Therefore, as compared with the above-described conventional surveying example, the surveying engineer E is unnecessary, and labor saving of one person can be surely achieved. There is no need for a technique or skill for turning the theodolite D or collimating the target. The marking of the new point C can be performed in a short time and is accurate because it is sufficient to directly mark the point irradiated by the laser beam L2. There is such an operation and effect.

[0010] As shown in FIG. 8, it is conventionally known that a mark of a point irradiated with the laser beams L1 and L2 is made by a laser beam receiver 3. In the case of FIG. 8, the laser beam L of the light emitting device S is irradiated in a rotating manner along the horizontal plane. Therefore, the laser light receiver 3 is moved vertically in the vertical direction toward the direction of the laser beam L, and the light receiving window Since there is provided a display window 5 in which an index display or an up and down arrow display is turned on according to the position of the laser beam L received at 4, the light receiver 3 is moved up or down according to the arrow display, and the center index display is displayed. At the lit position, the light receiving position is marked on the surface to be marked along the index 25 using the writing implement 26. Therefore,
When the laser beam L1 and L2 are radiated along a vertical plane as in the case of the laser beams L1 and L2 shown in FIGS. 5 and 6, the laser receiver 3 is set horizontally and horizontally to receive the laser beams L1 and L2, and is moved left and right. The mark position will be set.

[0011]

In FIG. 6, the means for receiving the laser beam L1 at the existing point A, or
The laser beam receiver 2 at the new point C can receive the laser beam L2 as described above by using the laser beam receiver 3, but the intersection P of the laser beams L1 and L2 located near the laser beam emitter S is changed to the existing point B. When the light-emitting device S is mounted on the tripod T so as to coincide with the following, it is difficult to determine the intersection P.

That is, in the vicinity of the existing point B, two points through which the laser beam L1 passes are obtained by the photodetector 3 so as to cross the point B, a line connecting the two points is drawn, and the laser beam Find two points through which L2 passes,
Since a line connecting the two points must be drawn and the intersection point P of the laser beams L1 and L2 determined by the intersection of these two lines must match the existing point B, the intersection point P does not match the existing point B. Must be repeated alternately and the operation of positioning the laser beam emitter S must be repeated alternately, and it can be said that it is extremely difficult to determine the installation position of the laser beam emitter S.

[0013]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a laser beam emitter having at least two sets of radiation optical systems for rotatingly irradiating laser beams L1 and L2 along planes perpendicular to each other. Set of laser beam L
1. A surveying laser beam receiver having an index indicating an intersection P of L1 and L2 and having at least two sets of sensors respectively detecting the two sets of laser beams passing through the index in directions perpendicular to each other. It is.

According to the present invention, there is provided a surveying laser beam receiver in which, in the above laser beam receiver, another sensor is provided in parallel with one of the two sets of sensors. Is what you do.

Further, the present invention provides a laser beam receiver for surveying, wherein an index indicating an intersection of laser beams is provided on a transparent body of the laser beam receiver. Things.

Further, according to the present invention, in the above laser beam receiver, an index indicating the intersection of the laser beams is provided on a transparent index plate, and the index plate is provided on a body of the light receiver. And a survey laser beam receiver.

Further, the present invention provides a surveying laser beam receiver, wherein the index is formed by a guide groove for marking an intersection of laser beams in the above laser beam receiver. Things.

[0018]

According to the laser beam receiver for surveying according to the present invention having the above-described structure, for example, in FIG. 6, two sets of sensors provided at right angles to each other are positioned near the existing point B so as to be horizontal. One sensor is a laser beam L1 and the other sensor is a laser beam L2
Is set at a position where detection display is performed at the same time as the light is received, the position of the index provided on the body coincides with the intersection P of the laser beams L1 and L2.

Therefore, if the index of the laser beam receiver is positioned on the existing point B and the irradiation of the laser beam L1 is confirmed at the existing point A in the above-mentioned coincident state, The setting is completed, and the new setting point C can be easily obtained by the laser beam L2.

Further, in the above-mentioned laser beam receiver, in a laser beam receiver provided with another sensor in parallel with one of the two sets of sensors, for example, Since the irradiation direction of the beam L1 can be confirmed at two points by the two sensors, there is an effect that the intersection P of the laser beams L1 and L2 can be set more accurately.

Further, in the above-mentioned laser beam receiver, by making the body transparent, or by providing a transparent index plate on the body, for example, the laser beams L1 and L2 shown in FIG. The intersection point P and the existing point B can be visually recognized through a transparent body or an index plate.

Further, in the above laser beam receiver, when the index is constituted by a guide groove for marking the intersection of the laser beams, for example, when the point B is newly set in FIG. An index indicating the intersection P is applied to the surface to be marked, and the intersection can be marked as a point B with a writing tool or the like along the guide groove.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below in detail with reference to the illustrated embodiments. In the embodiment shown in FIGS. 1 and 2, reference numeral 2 denotes a body of a laser beam receiver according to the present invention, provided with sensors 20 and 30 for detecting a laser beam in directions perpendicular to each other.

The sensors 20 and 30 are provided with display windows 21 and 31 for displaying the detection position of the laser beam in parallel next to them. In the case of the illustrated embodiment, the display windows 21 and 31 are configured to have arrowheads 23 and 33 facing right and left or up and down with the detection displays 22 and 32 facing the paper surface. With respect to the laser beam irradiation position emitted by
If left and right or up and down are displaced, the left or right, up or down arrow signs 23 and 33 indicating the direction in which the sensors 20 and 30 should be moved correctly light up, and the positions where the detection displays 22 and 32 just light up. Is a sensor 20 at the laser beam irradiation position,
It is configured to indicate that the 30 reference positions match. The detection display may be a buzzer or the like.

The body 2 of the laser beam receiver is preferably made of a transparent plastic member or the like having little deformation and a considerable strength.
When the detection indications 22, 32 of 0, 30 are lit by the laser beam, two sets of orthogonal laser beams L1,
An index 24 representing the intersection P of L2 is provided. In the case of the illustrated embodiment, the index 24 is configured such that the tip of a writing instrument is inserted into the transparent index plate 27 as a cross guide groove.

Reference numeral 28 denotes a key switch for switching various modes such as ON / OFF of the power supply.

In the embodiment having the above configuration, for example, in FIG. 6, two sets of laser sensors 20 and 30 provided at a point B at right angles to the body 2 of the laser beam receiver are horizontal. As shown in FIG. 1,
If one sensor 20 receives the laser beam L1 and the other sensor 30 receives the laser beam L2 and at the same time is set to the position where the detection displays 22 and 32 are turned on, the position of the index 24 provided on the laser beam receiver becomes the laser beam. L
It coincides with the intersection P of 1 and L2.

Therefore, when the index 24 coincides with the existing point B, the position of the laser beam emitter S is determined so that both the detection indicators 22 and 32 are turned on. If you check the irradiation of
The setting of the laser beam emitter S is completed,
The new point C can be easily obtained by the laser beam L2.

Further, in the above laser beam receiver, for example, the laser beams L1 and L2 shown in FIG.
Can be easily visually recognized as the coincidence between the index 24 indicating the intersection point P and the existing point B.

Further, in the above-mentioned laser beam receiver, when the index 24 is constituted by a guide groove for marking the intersection P of the laser beam, for example, FIG.
In the above, the index 24 indicating the intersection point P is placed on the surface to be marked shown as the point B, and the intersection point P can be marked as the point B with a writing instrument or the like along the guide groove.

As shown in FIG. 3, in the above-mentioned laser beam receiver, even if the sensors 20 and 30 are inclined with respect to the laser beam to be received, the laser beam is positioned at the center of the sensor. In the case of a configuration in which the detection displays 22 and 32 of the display windows 21 and 31 are turned on when irradiated, the sensors of the laser beam receivers that are to face the laser beams L1 and L2, for example,
In the case of setting by the amount of eyes, even if the laser beams L1 and L2 are inclined obliquely, the laser beams L1 and L2
When irradiating the detection position at the center of 0, both sensors 2
The detection displays 22 and 32 of 0 and 30 may be turned on at the same time, and the center point P ′ of the index 24 may be indicated at a position different from the actual intersection point P of the laser beam.

Therefore, according to the present invention, as shown in FIG. 4, another laser beam sensor 40 is further provided on the body 2 of the laser beam receiver, and the two sensors 20 and 3 are provided.
0 is provided in parallel with either one of the sensors. For example, the irradiation direction of the laser beam L1 can be confirmed at two points on the detection displays 22 and 42 of the two sensors in parallel, so that the laser beam receiver should receive light. When the position is inclined with respect to the laser beam, each sensor detects the laser beams L1 and L2 at the same time, and the detection displays 22, 32 and 42 do not light up at the same time.
Therefore, when each sensor simultaneously receives the laser beam and the indicator display is turned on simultaneously, the indicator 24 can accurately indicate the intersection P of the laser beams L1 and L2.

In FIG. 4, the other structures such as the display window 41, the arrow mark display 43, the container 2, etc. are the same as those described above with reference to FIGS.

[0034]

As described above, according to the laser beam receiver for surveying according to the present invention, a laser beam having at least two sets of radiation optical systems for rotatingly irradiating the laser beams L1 and L2 along surfaces orthogonal to each other. 2 in the light emitting device
It has an index indicating the intersection point P of the set of laser beams L1 and L2, and has at least two sets of sensors respectively receiving the two sets of laser beams passing through the index in directions perpendicular to each other. If one sensor is set to the position where the laser beam L1 is received and the other sensor receives the laser beam L2 and the detection display is performed at the same time, the position of the index provided on the body will be the laser beam L1
Since it coincides with the intersection P of L2, the intersection of the two sets of laser beams can be easily obtained, and the laser beam emitter can be easily set at a predetermined position.

In the above-described laser beam receiver, in a device in which another sensor is provided on the body in parallel with one of the two sensors, for example, the laser Since the irradiation direction of the beam L1 can be confirmed at two points by the two sensors, there is an effect that the intersection P of the laser beams L1 and L2 can be accurately set by the index provided on the body.

Further, in the above-mentioned laser beam receiver, by making the body transparent, or by providing a transparent index plate on the body, the laser beam L1,
The coincidence between the index indicating the intersection P of L2 and the existing point B can be visually recognized through the transparent container or the index plate, and the laser beam emitter can be easily set at a predetermined position. There is.

Further, in the above laser beam receiver, when the index is constituted by a guide groove for marking the intersection of the laser beams, the index indicating the intersection is placed on the surface to be marked, There is an effect that the intersection can be marked with a writing instrument or the like along the guide groove. In addition, there is an effect that a vertical line can be set by obtaining a plurality of intersections P of the laser beams L1 and L2 using the above-described laser beam receiver.

[Brief description of the drawings]

FIG. 1 is a schematic plan view showing one use mode of an embodiment of the device of the present invention.

FIG. 2 is a schematic vertical sectional view showing a main part along a line YY in FIG. 1;

FIG. 3 is a schematic plan view showing another undesirable use of the embodiment of FIG. 1;

FIG. 4 is a schematic plan view showing one mode of use of another embodiment of the device of the present invention.

FIG. 5 is a schematic cross-sectional plan view of a main part showing an example of a laser beam emitter according to the present invention.

FIG. 6 is an explanatory view showing one surveying mode using the laser beam emitter according to the present invention.

FIG. 7 is an explanatory view showing a conventional surveying method.

FIG. 8 is an explanatory view showing a surveying method using a conventional laser beam emitter.

[Explanation of symbols]

 A, B: Existing point P: Intersection point C: New point point D: Theodolite E: Surveying engineer F: Setting worker L, L1, L2: Laser beam S: Laser beam emitter T: Tripod V1, V2: Vertical plane 1 ： Laser beam light emitting device body 2: container body 3: laser beam receiver 4: light receiving window 5: display window 6: light source 7: compensator 8: radiation lens 9: electronic circuit board 10: power supply 13: two-sided reflective member 14: Double-sided reflective member support frame 15: Motor 16: Radiation window 17: Motor support frame 20: Sensor 21: Display window 22: Detection display 23: Arrow mark display 24: Index 25: Index 26: Writing implement 27: Index plate 28 : Key switch 30: Sensor 31: Display window 32: Detection display 33: Arrow display 40: Sensor 41: Display window 42: Detection display 43: Arrow display

Claims (5)

(57) [Claims] 1. An index indicating an intersection of said two sets of laser beams in a laser beam emitter having at least two sets of radiation optical systems for rotating and irradiating a laser beam along surfaces orthogonal to each other, A surveying laser beam receiver having at least two sets of sensors respectively detecting the two sets of laser beams passing through the indicator in directions perpendicular to each other. 2. A surveying laser according to claim 1, further comprising another sensor provided in parallel with one of said two sets of sensors. Beam receiver 3. A laser beam receiver according to claim 1, wherein an index indicating an intersection of the laser beams is provided on a transparent body of the light receiver. Laser beam receiver 4. A laser beam receiver according to claim 1, 2 or 3, wherein an index indicating the intersection of the laser beams is provided on a transparent index plate, and said index plate is mounted on the receiver. Laser beam receiver for surveying, provided on the body 5. The laser beam receiver according to claim 1, wherein the index comprises a guide groove for marking an intersection of the laser beams. Surveying laser beam receiver