JPS61215913A - Aiming mechanism - Google Patents

Abstract

PURPOSE:To improve the accuracy of the aiming and the work efficiency by using a quartz glass, a half mirror, and an optical glass. CONSTITUTION:A level adjusting device 2 is fixed at the upper surface of a base 1, a leveling stand 3 is fixed on the adjusting device 2, and at bearings 4a and 4b provided at the upward and downward directions of the central part opening of the leveling stand 3, a rotating main shaft 5 of a main body is supported with a vertical shaft line as a center so that the shaft can be rotated and can not be operated upward and downward. The central part of the right and left of a table 6 is horizontally fixed around the upper part of the main shaft 5 by a screw provided inside and outside both, the table 6 is followed by the main shaft 5, supported turnably with a vertical shaft line as a center for the base 1 and a leveling stand 2 through bearings 4a and 4b, on the table 6 a laser beam transmitting tube 7 is arranged, the electric power source is arranged horizontally, a motor 8 to turn a turning main shaft is vertically arranged, and an optical system, an angle dividing device, a remote control electronic circuit, etc., to use a quartz glass, a half mirror and an optical glass are fixed. Thus, the attenuation of the light quantity is prevented and the aiming accuracy can be specially improved.

Description

[Detailed description of the invention] 3-1. Objective 3-1-1. Industrial Application Field The invention of this patent application (hereinafter simply referred to as "the claimed invention") relates to an aiming device that projects using a laser spot light. By utilizing the optical system structure, mechanical mechanism, and electronic remote control configuration, the shape of the projected light is diversified, and the horizontal angle position of the projected light is remotely controlled to be automated and accurate. In shipbuilding, civil engineering, architecture, large structures, etc. A level that projects a laser beam spot used for work such as centering, marking, and reference setting 1 positioning.

It is related to aiming and surveying equipment.

3-1-2゜Conventional technology In a conventional sighting device, a laser beam transmitting tube is placed above the transit and level, and a lens system combining a prism is attached to the end of the seventh transmitting tube. Since the laser beam is configured to transmit a laser spot by passing the laser beam through the lens system, the amount of laser beam is reduced by more than half as it passes through the lens system. Because of this, it is inconvenient for the various tasks mentioned above, and the conversion of the horizontal angular position of the projected light is done manually, resulting in extremely low work efficiency.

3-1-3. Problems to be Solved by the Invention The present invention deals with a unique optical system structure and its mechanical structure.

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. .

It is an object of the present invention to solve the above-mentioned defects of the conventional technology by simplifying the integration of an optical system, a bisecting angle device, a remote device, etc.

3-26 Structure of the Invention 3-2-1 Means for Solving Problems An embodiment of the structure of the present invention will be described below with reference to the drawings.

In Figures 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 4a are provided vertically above and below the center opening of the semi-base 3.

b, the main body rotation shaft 5 is supported so as to be rotatable about the vertical axis but not vertically movable, and around the upper part of the rotation main shaft 5 is a U-shaped hole with the opening facing downward. The left and right centers of the table 6 are fixed horizontally with screws provided inside and outside of both, and the table 6 is rotated along with the rotation main shaft 5 and perpendicular to the base 1 and the leveling table 2 via the bearings 4a and b. It is supported rotatably around an axis, and a laser beam transmitting tube 7 is mounted on the table 6.
．． 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, a motor case 13 is provided on the top surface of the table 6 with a circular hole 12 that can be rotated horizontally around the vertical set screw 11 and that vertically fits and holds the motor 8. In addition to supporting the right end, a bowl 14 is provided horizontally protruding from the left end of the motor case 13, and a U-shaped support frame 15 is also fixed to the top surface of the table 6. The arm 14 of the motor case 13 is interposed and protruded between the parts b, the front protrusion piece 16a is provided with an internal thread, and the thumbscrew 17 is rotatably screwed into the arm 14 in opposing contact with the rear protrusion piece 16b. A cylinder 18 having a cavity is fixed opposite to the arm 14 , and a spring case 20 containing a compression spring 19 is slidably supported in the cavity of the cylinder 18 and brought into contact with the arm 14 , and the elasticity of the compression spring 19 is Spring case 20 due to force
The arm 14 is held between the arm 14 and the thumbscrew 17.

Compression spring 19 is released by loosening thumbscrew 17 toward you.
Extend the motor case 13 through the arm 14 and rotate it counterclockwise around the set screw 11 to release the pinion 9 of the motor 8 from the minute gear 10 of the leveling table 3, and then rotate the table 6. The motor case 13 is rotated manually using the scale 21 fixed to the upper outer periphery of the leveling table 3 as a reference, and the compression spring 19 is compressed by tightening the thumbscrew 17 in the forward direction. the pinion 9 of the motor 8 through the minute gear 1 of the leveling table 3.
0, 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 in terms of the horizontal degree angle position.

In Fig. 1.4.5, a rectangular plate-shaped panel 22 is fixed perpendicularly to the outside of the table 60 and the transmission tube 7, and a hole 23 penetrating left and right is provided in a part outside the center of the panel 22. ,
On the outside thereof, a bowl-shaped rotating frame 4 is vertically supported so as to be rotatable about a horizontal axis, and the rotating frame 24 has a plurality of equally spaced left and right positions on an arc centered on the 70 rotation center. A locking hole 25 is provided that penetrates through the panel 22, and a spring case 26 is fixed to the panel 22 at one location facing an arc connecting the plurality of locking holes 25 of the rotation frame 24. 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 the moving frame 24, comes in contact with a portion of the locking hole and is loosely fitted, and the coil spring 28 comes into contact with the other part of the ball 27 and is loosely fitted. A screw 29 is screwed into the opposite end of the coil spring 28 to the ball 27, and the coil spring 28 is compressed and the elastic force of the ball 27 causes the ball 27 to partially fit into the locking hole 25 of the rotation frame 24. When the rotating frame 24 is rotated manually, the ball 27 is inserted into the specific locking hole 2.
5 and fit into the next other 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, the gear 30 is fixed to the entire outer circumference of the rotating frame 24, and the left panel 22 of the rotating frame 24 has
A disc-shaped cam 32 with a gear 31 that meshes with the gear 30 fixed on the entire outer periphery is supported so as to be rotatable about a horizontal axis parallel to the rotation axis of the rotation frame 24, and the cam 32 is connected to a motor (not shown). A gear 31 is rotatably connected to the cam body 32.
recesses 3 that are recessed into a plurality of equally spaced locations on the outer circumferential surface on the inner side of the
3 is provided, and an actuator 35 of the micro switch 34 is provided.
The roller 36 is supported so that it can be inserted into and removed from the recess 33, and a signal from a remote control device is decoded by an electronic circuit to rotate the motor to rotate the cam body 32, so that the roller 36 is placed on the outer peripheral surface of the cam 32. , and when the roller 36 enters the recess 33, the actuator 35 is activated and the switch 34 is activated.
By stopping the motor, the gear 3 of the cam body 32
1 and the rotating frame 24, the rotating frame 24 is configured to rotate or stop.

Next, as shown in Figure 4.5.6, especially Figure 6, in order to diversify the shape of the projected spot light from the laser beam transmitting tube 7, the following configuration is made. .

The rotation frame 241C is an arc whose radius is a position that is centered on the 70 rotation center and is apart from it and coincides 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 central axis of the hole 23 at the same position. Above,
A plurality of openings 37 opening left and right are provided at equal intervals, and different optical system structures described below are fixed therein.

That is, each photoelectric case 38 screwed into each opening 37 and fixed horizontally has (1) a cylindrical quartz glass 40 placed on the surface of an optical plane glass 390, as shown in FIG.
(2) As shown in FIG. 6a, the optical plane glass 390 is arranged such that the central axis of the lens a crosses the horizontally projected laser spot 41 perpendicularly, so that the projected light is a horizontal straight line 42.
The central axis of the cylindrical quartz glass 40b placed on the surface is arranged horizontally to intersect with the horizontally projected laser spot 41, so that the projected light is a vertical straight line 43, as shown in (3) FIG. 6C. As shown in the figure, a rectangular flat half mirror 44a made of optical glass is arranged at an angle of 45 degrees with its traveling direction facing high and its front side facing the horizontally projected laser spot 41, and its opposing planes being orthogonal to each other. , the projected light is set at a point 45 directly above the horizontal point 44 and perpendicularly, (4) Fig. 6 d
As shown in , a rectangular flat half mirror 42b made of optical glass is set so that its traveling direction is low (with its front side facing high toward the front) with respect to the laser beam axis 1-41 for horizontal projection.
The projected light is set at a point 47 directly below the horizontal point 44 and perpendicular to the horizontal point 44, and as shown in FIG. is placed perpendicular to the laser spot 41, and the disc 48
On the flat plate facing the laser spot 410 projection source, there is provided a cross groove 49 that passes through the laser spot 41 and intersects vertically and horizontally to form a semicircular shape, and directs the projected light to the horizontal point 4.
5 and a crosshair 50 that passes through it and intersects vertically and horizontally, and (
6) Although not shown, an optical glass or focusing lens is used to allow the laser spot 41 to pass through as it is, so that the projected light is focused only on the horizontal point 45.

The axis of the laser spot 41 projected from the laser beam transmitting tube 7, the center axis of the hole 23 of the panel 22, the center axis of the opening 37 of the rotating frame 24, and the center axis of all the optical cases 3, 8. When the rotating frame 24 is manually rotated and the ball 27 is fitted into a specific locking hole 25 of the rotating frame 24 by the elastic force of the coil spring 28, it corresponds to the 70 locking hole 25. The central axes of the specific aperture 37 and the optical case 38 fixed thereto are arranged in relation to each other so as to match the hole 23 of the panel 22 and the laser spot 41, so that the rotation of the rotation frame 24 can be controlled without manual operation. When the cam body 320 is rotated in conjunction with the rotation of the motor, when the roller 36 of the microswitch 34 is fitted into a specific recess 33 of the cam body 32, the rollers 36 of the microswitch 34 are arranged so as to match as described above.

3-2-2. Effects of the Invention Since the present invention has the above-mentioned 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, the pinion 9 of the motor 8 is engaged with the minute gear 10 of the leveling table 3, and the motor 8 is rotated. By rotating the table 6 relative to the base 1 or loosening the thumbscrew 17, the motor case 13 is rotated counterclockwise via the arm 14 and the pinion 9 is rotated.
is released from the minute gear 10, and the table 6 is manually rotated relative to the base 1, in either case to align with the scale 21 of the leveling table 3 and make one rotation of 360 degrees. Alternatively, the table 60 may be rotated by a specific angle or directed to a specific location, and the table 60 may be stopped rotating after the laser spot 41 is rotated or directed accordingly.

(2) In conjunction with the rotation of the cam body 32 in one direction by the motor, the gear 31 of the cam body 32 and the rotation frame 24
The rotating frame 24 is rotated through the engagement of the gear 30, and the roller 3 of the actuator 35 of the micro switch 34 is rotated.
6 is fitted into a specific recess 33 of the cam body 32, the rotating frame 24 is stopped, or the rotating frame 24 is rotated only by manual operation, and the ball 27 on the side of the panel 22 is rotated. When the specific tilt hole 25 on the side of the rotating frame 24 is opened, the rotating frame 24
stops, and in either case of motor or manual operation, a specific optical case 38 is set to a laser spot in relation to a specific recess 33 of the cam body 32 or a specific locking hole 250 of the rotating frame 24. The cylindrical quartz glass 4 is disposed corresponding to the optical case 41 and is supported by the optical case 38.
Qa,b or half mirror 44a,b or cross-groove glass disc 48 or passing or focusing lens to form a laser spot into a horizontal straight line 42. vertical straight line 43
．． Horizontal point 45 and directly overhead point 46. Horizontal point 45 and nadir point 4
7. Horizontal point 45 and cross line 5.0° Change to only horizontal point 45.

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 t and Z is used as a stepping motor, and the table 6 is controlled from a remote control device via an electronic circuit.
It is also possible to cause the motor to rotate through the required angle and then stop by giving the motor a corresponding number of steps to obtain the required rotation angle.

(b) As shown in FIG. 7a, a disc-shaped detection plate 52 with pores 51 provided at the required rotational angle positions is fixed to the table 6, and pores are equally spaced over the entire circumference. A disc-shaped dividing plate 54 provided with 53 is fixed to the leveling table 3, and a transmitting body 55 and a receiving body 56 forming an optical sensor are connected to the detecting plate 52 and the dividing plate 54 through the respective small holes 51, 53. When the detecting body 520 supported on a stationary body facing and vertically separated from each other is rotated, the arcuate signal generated due to the difference in the positions of the pores 51 and 53 is compared with the signal from the remote control device using an encoder. , a signal of the required rotation angle position is obtained and the motor 8 is
stop.

(C) As shown in Figures 7 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. , the upper surface of the protractor plate 60 is fixed with a disc-shaped cam body 62 having a plurality of recesses 61 recessed at required angular positions on the outer peripheral surface, and the cam body 62 is fixed to the table 6. An actuator 64 that together supports a roller 63 facing the outer peripheral surface of the actuator 64.
Fix the microswitch 65 with the

Therefore, rotate the table 6 to align the laser spot 41 with the target point position, loosen the screw 58, and rotate the protractor plate 60 to match the 0 degrees of the scale 59 with the index on the table 6. The protractor plate 60 is fixed to the leveling table 3 by tightening, and the motor 8 receives a signal from a remote device via an electronic circuit and rotates, and the roller 63 and the table 6 move together with the cam body 6.
When it rotates 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 to stop the motor 8, and the laser spot 41 is initially Since the projector rotates from the target point and moves from the O-shift position of the scale 59 of the protractor plate 60 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, laser spot 4
1 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 FIG.

(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, instead of the recess 33 of the cam body 32, a pore opening upward and downward is arranged, and the roller 3 of the actuator 35 of the microswitch 34 faces the pore.
In place of 6, the same effect can be obtained even if the transmitter and receiver of the photoelectric sensor are fixed to the panel with the pores sandwiched above and below and separated from each other.

Φ) 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 replaced with each opening 37. Even if a required number of pulse signals are applied 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,
produces a similar effect.

3-36 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 equipment, the laser spot 41
Since the light passes through the lens system of the prism combination, the amount of light is attenuated to less than half and the accuracy of aiming is reduced, but in the present invention, quartz glass is used.

Since half-mirror 1 optical glass is used, the attenuation of the amount of light is stopped slightly, and aiming accuracy is greatly improved.

(2) The laser spot 410 projects light, and it does not stop at just that, but also the horizontal straight line 42. Vertical straight line 43° Horizontal point 45
and directly above point 46. Horizontal point 45 and nadir point 47. horizontal point 4
5 and crosshairs 49, so shipbuilding, civil engineering,
It can be applied to many types of work such as centering, scribing, standard setting 1 positioning, etc. in architecture, large structures, etc., and can perform work accurately for a variety of purposes.

(3) When changing the projection shape of the projected light in a variety of ways, not only manual operation but also automation without manual intervention can be achieved by using a motor or stepping motor together with a remote-controlled signal generator and its receiving electronic circuit. This makes the work more accurate and more efficient.

(4) The horizontal angle displacement position of the laser spot 410 projection light can be changed manually by loosening the thumbscrew 17, or by tightening the thumbscrew 17 and moving the motor 8.
Furthermore, since the conversion can be performed automatically by using a stepping motor, the conversion is quick and accurate, and work efficiency is improved.

(5) Laser beam transmitting tube7. Same power supply, same electronic circuit, multiple optical cases 38. The rotation device, the rotation device for the horizontal angle of the table 6, the motor 8, etc. are housed inside the entire device and integrated, so it can be transported.

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, Fig. 6 a x e is a perspective view showing the optical system device, Fig. 7 a w d is a perspective view showing a horizontal minute angle device. Patent applicant Tomiya Iwasaki, Mizoguchi Seisakusho Co., Ltd.

Claims (4)

[Claims] (1) A laser beam transmitting tube that emits a single laser spot projected along the horizontal line, a rotating frame that is rotatably supported around a horizontal axis parallel to the laser spot, and a rotating motor that is a driving source. a rotating means for rotating the rotating frame in conjunction with the movement of the rotating frame; a plurality of optical cases having axes parallel to each other; and a locking frame configured to lock the rotating frame when the rotating frame rotates and the axis of one particular optical case coincides with the laser spot. a stop means, a cylindrical quartz glass that is supported separately in each optical case and has an axis that intersects the laser spot vertically or horizontally, a flat half mirror that intersects the laser spot at an angle, and a laser. A disc-shaped optical glass plate having a cross groove that intersects horizontally and vertically with a plane facing the spot projection source and is immersed in a semicircular shape. aiming device. (2) A patent claim characterized in that the rotation 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 central angle of each arrangement. Aiming devices as described in Section 1. (3) The outer periphery of the cam body is equipped with a rotating means and a locking means, whose driving source is a motor, and a gear that meshes with a gear fixed on the outer periphery of the rotating frame. A plurality of recesses are provided in relation to positions where the axis line coincides with the laser spot, and the motor is stopped in conjunction with the action of a microswitch that operates in conjunction with the roller being recessed into the recesses. An aiming device according to claim 1, characterized in that: (4) A rotating means and a locking means are used, and the driving source thereof is a motor, and the light beam passing through the pores opened at the top and bottom of a cam body with the motor fixed and rotatable around a vertical axis. The aiming device according to claim 1, characterized in that the motor is stopped in relation to the reception.