JPH0367577B2 - - Google Patents

Description

[Detailed Description of the Invention] 3-1 Purpose 3-1-1 Field of Industrial Application The invention of this patent application (hereinafter simply referred to as "the claimed invention") utilizes a spot light of a laser beam. It is related to a projection aiming device, and in particular, it uses a laser spot light, and uses an optical system structure, a mechanical mechanism, and an electronic remote control structure to diversify the shape of the projection light and to improve the projection beam. By remotely controlling the position of the horizontal minute angle and automating and making it more accurate, it is possible to project a laser beam spot that is used for centering, scribing, standard setting, positioning, etc. in shipbuilding, civil engineering, large structures, etc.
This relates to sights and surveying instruments.

3-1-2 Conventional technology In a conventional sighting device, a laser beam transmitting tube is placed above the transit and a level, a lens system combined with a prism is attached to the end of the transmitting tube, and the lens system Since the laser beam is configured to pass through the lens system and emit a laser spot, the amount of laser beam is attenuated to less than half by passing through the lens system, resulting in a decrease in aiming accuracy, and the laser spot is emitted only by passing through the lens system. Therefore, it is inconvenient for the various operations mentioned above, and the conversion of the horizontal angular position of the projected light is done manually, resulting in extremely low work efficiency.

3-1-1 Problems to be solved by the invention The present invention has a unique optical system structure and its mechanical,
The electric structure allows the shape of the projected light to be diversified and automated, and the horizontal angular position of the projected light can be remotely controlled to automate the accurate selection of any angular position over 360°, as well as the laser transmitting tube and power source. , an optical system, a decoupling device, a remote device, etc., are integrated and simplified, thereby solving the deficiencies of the conventional technology.

3-2 Structure of the Invention 3-2-1 Means for Solving the Problems Examples of the structure of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, a known leveling device 2 is placed and fixed on the top surface of a base 1, and a bowl-shaped leveling table 3 is placed and fixed horizontally on top of the leveling device 2. Bearings 4 installed vertically above and below the center opening of the leveling table 3
In a and b, the main rotating shaft 5 of the main body is supported so as to be rotatable about the vertical axis but not movable up and down, and around the upper part of the main rotating shaft 5 is a U-shape with an opening facing downward. The left and right centers of the shaped table 6 are fixed horizontally with screws installed inside and outside both sides, and the table 6 is moved along the rotation main shaft 5 to the base 1 and the leveling base 2 via the bearings 4a, b. The table 6 is supported rotatably around a vertical axis, and a laser beam transmitting tube 7,
The power supply is arranged horizontally, the motor 8 for rotating the rotational main shaft is arranged vertically, and the remote control electronic circuit etc. are fixed.

In particular, in FIG. 2, a pinion fixed to the lower end of the vertical rotating shaft of the motor 8 is engaged with a fixed horizontal minute gear 10 that surrounds the outer peripheral surface of the upper part of the leveling table 3, and responds to a remote control signal. By rotating and stopping the motor 8, the pinion 9 is rotated on the minute gear 10, the table 6 is rotated relative to the base 1, and the laser beam transmitter 7 is also rotated perpendicularly to the rotation main shaft 5. It rotates around its axis, moves the projection position of the laser beam to a desired horizontal position, and then stops.

In FIGS. 2 and 3, on the top surface of the table 6,
A circular hole 1 that can be rotated horizontally around the vertical set screw 11 and that fits and holds the motor 8 vertically.
A bowl 14 is provided horizontally protruding from the left end of the motor case 13, and a bowl 14 is provided on the upper surface of the table 6.
The support frame 15 is fixed in a U-shape, and the arm 14 of the motor case 13 is interposed and protruded between the front and rear projecting pieces 16a and b of the support frame 15. A spring case 20 is rotatably screwed into contact with the arm 14, and a cylinder 18 having a hollow inside is fixed to the rear protruding piece 16b facing the arm 14, and a compression spring 19 is built in the hollow of the cylinder 18. is slidably supported and brought into contact with the arm 14, and the arm 14 is held between the spring case 20 and the thumbscrew 17 by the elastic force of the compression spring 19.

By loosening the thumbscrew 17 toward you, the compression spring 19 is extended, and the motor case 13 is rotated counterclockwise around the set screw 11 via the arm 14, thereby moving the pinion 9 of the motor 8 to the leveling table 3. The table 6 is rotated manually with reference to the scale 21 fixed to the upper outer periphery of the leveling table 3, and the compression spring 19 is compressed by tightening the thumbscrew 17 forward. Then, the motor case 13 is rotated clockwise around the set screw 11 via the arm 14, and the pinion 9 of the motor 8 is moved to the leveling table 3.
The table 6 is rotated by the rotation of the motor 8, and in either case, the laser beam projected from the laser beam transmitting tube 7 is moved with respect to the horizontal minute angle position.

In FIGS. 1, 4, and 5, a rectangular plate-shaped panel 22 is fixed vertically to the outside of the transmitting tube 7 of the table 6, and a hole 23 penetrating left and right is formed in a part outside the center of the panel 22. A bowl-shaped rotating frame 4 is vertically supported on the outside thereof so as to be rotatable about a horizontal axis,
The rotation frame 24 is provided with a plurality of locking holes 25 penetrating left and right at equal intervals on an arc centered on the rotation center, and the plurality of locking holes 25 of the rotation frame 24 are connected in a row in the panel 22. Spring case 2 in one place against the arc
6 is fixed, and inside the spring case 26 is a rotating frame 2.
A part of the ball 27, which is a perfect round ball with a diameter that can be inserted into and removed from the locking hole 25 of No. 4, is loosely fitted in contact with the locking hole, and a coil spring 28 is loosely fitted in contact with the other part of the ball 27. A screw 29 is screwed into the opposite end of the coil spring 28 to the ball 27 to compress the coil spring 28 and use its elastic force to force the ball 27 and press a portion of it into the locking hole 25 of the rotating frame 24. However, when the rotating frame 24 is manually rotated, the ball 27 is disengaged from a particular locking hole 25 and inserted into the next locking hole 25 in the rotation direction.

In addition, in order to automatically rotate the rotating frame 24 without manual operation, the locking hole 25 of the rotating frame 24, the ball 27 of the panel 22, etc. are removed, and the following procedure is performed. Configure.

That is, as shown in FIG. 4, a gear 30 is fixed to the entire outer periphery of the rotating frame 24, and a gear 31 that meshes with the gear 30 is fixed to the left panel 22 of the rotating frame 24. A plate-shaped cam 32 is rotatably supported around a horizontal axis parallel to the rotation axis of the rotation frame 24, and the cam 32 is rotatably connected to a motor (not shown). Recesses 3 that are recessed into a plurality of equally spaced locations on the outer peripheral surface inside the gear 31
3 is provided, a roller 36 is supported on the actuator 35 of the micro switch 34 so that it can be inserted into and removed from the recess 33, and the signal from the remote control device is decoded by an electronic circuit to rotate the motor and rotate the cam body 32. , the roller 36 is located on the outer peripheral surface of the cam 32, and when the roller 36 is inserted into the recess 33, the actuator 35 is activated and the switch 34 stops the motor, so that the gear 31 of the cam body 32 is activated.
The rotation frame 2 through the gear engagement of the rotation frame 24 and
4 is configured to rotate or stop.

Next, as shown in Figures 4, 5, and 6, especially Figure 6, in order to diversify the shape of the projected light by projecting spot light from the laser beam transmitting tube 7,
Configure as follows.

The rotation frame 24 has an arc whose radius is a position centered on the rotation center and away from the rotation center and coincident with the central axis of the hole 23 of the panel 22 and the laser beam axis from the laser beam transmitting tube 7 which is parallel to the center axis of the hole 23 at the same position. On the top, a plurality of openings 37 opening left and right are provided at equal intervals, and different optical system structures described below are fixed thereto.

That is, each photoelectric case 38 screwed into each opening 37 and fixed horizontally has a columnar quartz glass 40a placed on the surface of the optical plane glass 39 (1) as shown in FIG. 6a. The central axis is arranged to intersect perpendicularly to the horizontal projection laser spot 41, so that the projected light is a horizontal straight line 42, and (2) it is placed on the surface of the optical flat glass 39 as shown in FIG. 6a. The center axis of the cylindrical quartz glass 40b is arranged horizontally to intersect with the laser spot 41 for horizontal projection, so that the projected light is a vertical straight line 43, and (3) as shown in FIG. 6c, the optical A rectangular flat plate-shaped half mirror 44a made of glass is arranged at an angle of 45 degrees with the forward direction facing the horizontally projecting laser spot 41 high and the front thereof facing low, and the opposing planes are perpendicular to each other. is a point 45 directly above the horizontal point 44, and (4) as shown in FIG. 6d, a rectangular flat half mirror 42b made of optical glass is formed.
is arranged at an angle of 45 degrees so that its traveling direction is low and its front side is high toward the front of the horizontally projected laser spot 41, and the opposing planes are perpendicular to each other, and the projected light is set at a horizontal point 44 and a point 47 directly below the vertical point. , (5) Figure 6 e
As shown in FIG. 2, a disk-shaped glass plate 48 made of optical glass is arranged perpendicularly to the laser spot 41, and the laser spot 41 is placed on the flat plate of the disk 48 facing the projection source of the laser spot 41.
A cross groove 49 is provided which passes through the horizontal point and intersects vertically and horizontally and is recessed in a semicircular shape, and the projected light is made into a horizontal point 45 and a cross line 50 which passes through it and intersects vertically and horizontally.(6) Although not shown in the figure, a laser spot An optical glass or a focusing lens is provided to allow 41 to pass through as it is, so that the projected light is directed only to the horizontal point 45.

The axis of the laser spot 41 projected from the laser beam transmitting tube 7 and the hole 2 of the panel 22
3, the center axis of the aperture 37 of the rotation frame 24, and the center axis of all the optical cases 38. is fitted into a specific locking hole 25 of the rotating frame 24, the central axis of the specific opening 37 corresponding to the locking hole 25 and the optical case 38 fixed thereto is aligned with the hole 23 of the panel 22. and the laser spot 41, and when the rotation of the rotation frame 24 is caused by the rotation of the cam body 32 that is linked to the rotation of the motor without manual operation, the identification of the cam body 32 is performed. When the roller 36 of the microswitch 34 is fitted into the recess 33 of the microswitch 34, the roller 36 of the microswitch 34 is arranged so as to match in the same manner as described above.

3-2-2 Effects of the Invention Since the present invention has the above configuration, it produces the following effects based on it.

(1) By screwing in the thumbscrew 17, the motor case 13 is rotated clockwise via the arm 14, and the pinion 9 of the motor 8 is connected to the minute gear 1 of the reference base 3.
0, rotate the motor 8 to rotate the table 6 relative to the base 1, or loosen the thumbscrew 17 to rotate the motor case 13 counterclockwise via the arm 14 to rotate the pinion 9. is released from the minute gear 10, and the table 6 is manually rotated relative to the base 1 to align it with the scale 21 of the leveling table 3 and make one rotation of 360 degrees. Alternatively, the laser spot 41 may be rotated by a specific angle or directed to a specific location, and after the laser spot 41 is rotated or directed accordingly, the rotation of the table 6 is stopped.

(2) In conjunction with the rotation of the cam body 32 in one direction by the motor, the rotation frame 24 is rotated through the engagement of the gear 31 of the cam body 32 and the gear 30 of the rotation frame 24, and the micro The rotating frame 24 is stopped when the roller 36 of the actuator 35 of the switch 34 fits into the specific recess 33 of the cam body 32, or the rotating frame 24 is rotated only by manual operation, and the panel Ball 2 on the 22 side
The rotating frame 24 stops when the tilting hole 25 on the side of the rotating frame 24 is closed, and whether by motor or manual operation, the rotating frame 24 In relation to both positions of the specific locking hole 25, the specific optical case 3
8 is arranged corresponding to the laser spot 41, and the optical case 38 supports cylindrical quartz glass 40a, b or half mirror 4.
4a, b or a cross-groove glass disk 48 or a passing or focusing lens, the laser spot is set to a horizontal straight line 42, a vertical straight line 43, a horizontal point 45 and a point directly above 46, a horizontal point 45 and a point directly below 47, horizontal Point 45 and crosshair 50, horizontal point 4
Change to one of 5 only.

3-2-3 Other Embodiments (1) Other embodiments of the means for rotating the table 6 relative to the leveling table 3 and the base 1 include the following means in addition to the above.

(a) The motor 8 shown in Figures 1 and 2 is a stepping motor, and the corresponding number of steps for obtaining the required rotation angle of the table 6 is given to the motor from the remote control device via an electronic circuit. This allows the motor to rotate through the required angle and then stop.

(b) As shown in Fig. 7a, a disc-shaped detection plate 5 with pores 51 provided at required rotation angle positions.
2 is fixed on the table 6, and a disk-shaped bisecting plate 54 with fine holes 53 provided at equal intervals over the entire circumference is fixed on the leveling table 3, and a transmitter 55 and a receiver 56 forming an optical sensor are attached. Detection plate 52
The detection body 52 is supported by supporting the bisecting plate 54 on a stationary body facing each of the pores 51 and 53 and spaced apart from each other in the vertical direction.
When the rotor rotates, the minute angle signal generated by the difference in the positions of the pores 51 and 53 is compared with the signal from the remote control device using an encoder to obtain a signal of the required rotation angular position. Stop motor 8.

(c) As shown in FIGS. 7b and 7c, an index 57 is provided on the table 6, and a protractor plate 60 with a 360 degree scale 59 is rotated on the horizontal outer periphery of the leveling table 3 using a screw 58. , Lockable support, protractor plate
The upper surface of 60 is a disc-shaped cam body 62 with a plurality of recesses 61 recessed at required angular positions on the outer peripheral surface.
A micro switch 65 having an actuator 64 which also supports a roller 63 facing the outer peripheral surface of the cam body 62 is fixed to the table 6.

Therefore, rotate the table 6 to align the laser spot 41 with the target point position, and tighten the screw 58.
Loosen the dial and rotate the protractor plate 60 until its scale 5.
9 to match the index on the table 6, tighten the screw 58 to fix the protractor plate 60 to the leveling table 3, and the motor 8 receives a signal from the remote device via the electronic circuit and rotates. When the roller 63 rotates together with the table 6 while sliding on the outer peripheral surface of the cam body 62 and enters the next specific recess 61 of the cam body 62, the micro switch 65 acts via the actuator 64 and the motor 8 is activated.
The laser spot 41 rotates from the initial target point until it reaches 0 on the scale 59 of the protractor plate 60.
Since the laser spot 41 is projected by moving from the angular position to the angular position of the recess 61 of the cam body 62, by setting the angular position of the recess 61 at a desired angle, the laser spot 41 can be projected within a desired angle range.

(d) As shown in Fig. 7d, the recess 61 of the cam body 62 in the embodiment shown in Figs. Even if the transmitting body 67 and the receiving body 68 of the photoelectric sensor arranged as shown in FIG. 7 are fixed to the table 6, the same effect as shown in FIGS.

(2) Other embodiments of the means for rotating the rotating frame 24 relative to the panel 22 include the following means in addition to the above.

(a) In FIG. 4, a pore opening upward and downward is arranged in place of the recess 33 of the cam body 32, and a pore is arranged in place of the roller 36 of the actuator 35 of the micro switch 34 facing the pore. A similar effect can be obtained even if the transmitter and receiver of the photoelectric sensor are fixed to the panel with the transmitter and receiver separated vertically.

(b) In Fig. 4, the cam body 32 and the recess 33 are eliminated, only the gear 31 is left, the gear 31 is replaced with a rotating motor and a stepping motor is used, and the rotating frame 24 is used as the rotating frame 24 and each of its openings is replaced with a stepping motor. 37. A similar effect can be obtained by applying the required number of pulse signals to the stepping motor by a remote control device via an electronic circuit so that each optical case 38 rotates at each central angle of the arrangement.

3-3 Effects of the Invention The present invention has the above-mentioned configuration and produces the above-mentioned effects, and therefore has the following effects.

(1) In conventional sighting devices, the laser spot 41 passes through a lens system that is a combination of prisms, so the light intensity is attenuated to less than half and the accuracy of aiming is reduced. , a half mirror, and optical glass are used, so the attenuation of the amount of light is stopped slightly, and the accuracy of aiming is greatly improved.

(2) The projection light of the laser spot 41 is not limited to just that, but also the horizontal straight line 42 and the vertical straight line 4.
3. Diversified as horizontal point 45 and directly above point 46, horizontal point 45 and directly below point 47, horizontal point 45 and crosshair 49, so it can be used for centering, scribing, standard setting in shipbuilding, civil engineering, architecture, large structures, etc. It can be applied to many types of work such as positioning, positioning, etc., and can perform work accurately for a variety of purposes.

(3) When changing the projection shape of the projected light in various ways,
In addition to manual operation, by using a motor or stepping motor in conjunction with a remote-controlled signal generator and its receiving electronic circuit, it can be automated without manual intervention, making the work more accurate and more efficient.

(4) The horizontal angular position of the projected light of the laser spot 41 can be changed manually by loosening the thumbscrew 17, or by loosening the thumbscrew 17.
7 can be automatically performed by using the motor 8 or a stepping motor, so the conversion is quick and accurate, improving work efficiency.

(5) The laser beam transmitting tube 7, the power supply, the electronic circuit, the plurality of optical cases 38, the rotation device, the horizontal rotation device for the table 6, the motor 8, etc. are housed inside the entire device. Since it has been integrated,
Transportation, installation, and operation are extremely simple.

[Brief explanation of drawings]

Fig. 1 is a front view of the whole with some longitudinal sections taken, Fig. 2 is a side view of the whole with some parts omitted, Fig. 3 is a plan view showing some details and omitting other parts, and Fig. 4 The figure is a side view showing some details and omitting other parts, FIG. 5 is a perspective view showing details of FIG. 4, FIGS. 6 a to e are perspective views showing the optical system device, and FIGS. 7 a to d is a perspective view showing a horizontal minute angle device.

Claims (1)

[Scope of Claims] 1. A laser beam transmitting tube that emits a single laser spot projected along a horizontal line, a rotating frame rotatably supported around a horizontal axis parallel to the laser spot, and a driving source. a rotating means for rotating the rotating frame in conjunction with the rotation of the motor; and a rotating means that is spaced apart from each other and supported on the rotating frame on an arc that is separated from the rotation axis of the rotating frame and intersects the laser spot. and a plurality of optical cases having axes parallel to the laser spot and the rotating frame are rotated and the rotating frame is locked in relation to the fact that the axis of one particular optical case coincides with the laser spot. cylindrical quartz glass each supported in each optical case and having axes that intersect the laser spot vertically or horizontally, and a flat plate half that intersects the laser spot at an angle. Separate optical structures each comprising a mirror and a disc-shaped optical glass plate having a cross groove that intersects horizontally and vertically with the plane facing the projection source of the laser spot and is immersed in a semicircular shape. An aiming device characterized by: 2. The rotating means and the locking means are configured to give the step motor a number of pulse signals that cause each optical case to rotate for each center angle of the arrangement. Aiming device described in paragraph 1. 3 The outer periphery of the cam body has a rotating means and a locking member, a motor is used as a driving source, and a gear that meshes with a gear fixed to the outer periphery of the rotating frame. A plurality of recesses are arranged in relation to the position where the roller matches the laser spot, and the motor is stopped in conjunction with the action of a micro switch that operates in conjunction with the roller being immersed in the recess. An aiming device as claimed in claim 1. 4 A rotating means and a locking means are used, and the drive source thereof is a motor, and the motor is rotated to receive the light beam passing through the pores opened at the top and bottom of the cam body which is rotatable around a vertical axis. 2. The aiming device according to claim 1, wherein the motor is stopped in connection with this.