JP3028196B2 - Laser device for vertical marking - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical blackout laser device used for blackout work when performing room layout or partitioning.

[0002]

2. Description of the Related Art A conventional type of laser device for marking in the vertical direction is a conventional type of laser device in which a laser irradiator itself or a support supporting the laser irradiator is pivotally supported in a vertical plane so as to be capable of swinging like a weight. A rod lens is pivoted on an axis, and a rod lens is provided with its central axis horizontal on the optical axis of the irradiated laser beam and on the reflected optical axis or on the optical axis, and the beam radiated through the rod lens to a vertical plane is directly or covered. It is based on a configuration in which light is radiated to the outside from a slit for radiating light from the body, and is disclosed in Japanese Utility Model Publication No. 4-22943 or Japanese Patent Laid-Open No. 6-29.
What is described in 7350 gazette etc. is publicly known.

[0003]

Problems to be Solved by the Invention
The blackout laser device described in Japanese Patent No. 2943 supports a laser tube (a helium gas laser type 1 mmW rectilinear deflection type disposed in a cylindrical protective tube made of aluminum) so as to be automatically vertical by a gyro. The laser tube is placed inside the windshield suspended from the head, and the windshield has a plurality of screw-in fixtures for fixing the protection tube of the laser tube, so the laser tube can be destabilized. Although it can be prevented, apart from the power supply connection, and since a plurality of fixtures must be rotated individually, the work is very troublesome.

In the blackout device described in JP-A-6-297350, the weight-supporting support for the laser irradiation device is free, so that the device can be transported and transported to the site. When transporting, moving from place to place, etc., there was a problem in that the laser irradiation device could be damaged by colliding with the inner wall or support of the cover, or the pivot could be damaged, causing the projection of the vertical marking line to be out of order. .

According to the present invention, a highly accurate verticality is automatically set simply by setting a laser irradiation direction to a desired wall direction by placing the laser irradiation direction at a predetermined position of a work place, and a laser irradiation device adjusted and fixed to a horizontal support is used. It is an object of the present invention to provide a vertical blackout laser device capable of clearly displaying a laser beam at a predetermined position on a ceiling surface, a wall surface, or the like as a highly accurate and accurate vertical continuous laser irradiation line.

[0006]

According to the present invention, there is provided a laser device for marking in a vertical direction, comprising a control motor fixed to a horizontal support fixed on a horizontal support supported and fixed to a column erected on a main body base. The adjustment plate is provided so as to be swingably controlled about the horizontal axis supported by the horizontal support by the driving of the control member.

A laser irradiating device is provided on the adjusting plate so as to form a laser irradiating line by diffusing a laser beam irradiating in a direction parallel to the horizontal axis or at an angle of elevation with a horizontal rod lens whose center passes through the optical axis. And a uniaxial horizontal sensor which outputs the bubble position fluctuation in the direction perpendicular to the horizontal axis as an analog signal by an electric detection means, thereby driving the control motor.

As an adjusting means of the adjusting plate by a control motor, one edge of the adjusting plate in a direction orthogonal to the horizontal axis is provided.
The other end is connected to a horizontal support. One end of a tension spring is connected. A nut supported swingably by a horizontal pin parallel to the horizontal axis is integrated with the drive shaft of the control motor fixed to the horizontal support. The adjusting plate is swung by screwing the screw shafts of the above, or the adjusting plate is fixed to a horizontal axis, and the horizontal axis is rotatably supported by a horizontal support, and the rotation of the control motor fixed to the horizontal support is performed. Is transmitted to the horizontal shaft by a gear transmission means to control the swing of the adjustment plate.

Further, in the uniaxial horizontal sensor, the inner wall of the electrode installation chamber for enclosing the electrolytic solution and the air bubbles forms a circular arc line having a predetermined radius centered on a point on the vertical line and bisected by the vertical line. A rotating body shape obtained by rotating around a horizontal center line perpendicular to the line, the surrounding wall of the inner peripheral wall surface having a high three-dimensional surface roughness having a circular cross section perpendicular to the horizontal center line, and a sealing end An electrode holder made of an insulating material formed with the body
A common electrode that projects radially through the electrode installation chamber at a position corresponding to the vertical line, and a diameter of the electrode installation chamber that is larger than the common electrode at a left-right symmetrical position along the horizontal center line about the common electrode. A peripheral electrode that protrudes high in the direction and has a uniform surface area is penetrated in a liquid-tight state, and air bubbles and surface tension are small in the electrode installation chamber, and the impedance between the electrodes becomes a predetermined value in a horizontal state. The electrolyte mixed in the ratio is sealed so that the common electrode is always immersed in the electrolyte and does not touch the bubbles, and the surrounding electrodes are in a horizontal state so that the surrounding electrodes do not touch the bubbles, and an analog signal is output from this. This drives the control motor.

The above-configured vertical marking laser device according to the present invention, when mounted on an arbitrary surface and turned on, is adjusted so as to be swingable about a horizontal axis. With the output signal from the uniaxial horizontal sensor on the plate, the adjustment plate is controlled by the motor drive and becomes horizontal, and the laser is irradiated from the laser irradiation device fixed on the adjustment plate, which is a horizontal rod lens through which the optical axis passes. The laser beam is diffused and illuminated on a wall or the like as a vertical laser irradiation line, and can be used as a reference when laying out or partitioning a room.

[0011]

DETAILED DESCRIPTION OF THE INVENTION AND

【Example】

(Embodiment) FIG. 1 shows an apparatus main body portion A of a vertical blackout laser apparatus according to an embodiment of the present invention, and a main body base (1).
, A horizontal support (2), and an adjustment block (3), which are divided into three parts. FIG. 2 is a schematic plan view of the adjustment block (3), and FIG. FIG. 4 is a longitudinal sectional view of a single-axis horizontal sensor, FIG. 5 is a side sectional view, FIG. 6 is a horizontal sectional view of the same, and FIG. 7 is a single-axis horizontal sensor. It is explanatory drawing of sensor up.

Referring to the drawings, the laser device for marking in the vertical direction according to an embodiment of the present invention will be described. The laser device comprises a main body portion A and a cover cap B which covers the main body portion. As shown in FIG. 3, the apparatus start switch (SW), a slit (SL) for irradiating a laser irradiation line formed from the trunk to the top, and the slit (SL) are operated by operating the apparatus start switch (SW). And a suspender (F) for mounting a portable band (not shown) provided on the body portion. The device main body portion A is roughly divided into a main body base
(1), a horizontal support (2), and an adjusting block (3).

The main body base (1) has three directly mounted legs (11) protruding around the bottom surface at an average interval, and has two screw holes of the same height with a screw hole formed in the upper end surface on the upper surface. Prop (12)
And a battery housing cylinder with lid (13), which is screwed and penetrated into the main body base (1) and whose bottom side is an exchange port, is provided upright.

The horizontal support (2) is provided at the left and right edges of the substrate (21) having mounting holes formed in correspondence with the screw holes and at positions facing each other. And the setting switch fixing plate (23) is bent upright at one side position of the support plate (22) so as to be perpendicular to the horizontal straight line connecting the support plates (22). A hole (24) for the motor shaft is formed in the edge of the substrate (21) on the direction straight line, and the swing range of the adjustment plate (36) described later is set in each of the setting switch fixing plates (23). A limit switch (26) for tilt setting for stopping the drive of the control motor (25) is fixed, and a drive shaft (28) having a tip portion as a screw shaft (27) is connected to the motor shaft hole ( 22) Control motor (25)
Is fixed to the substrate (21), a circuit for driving and controlling the control motor (25) based on an electric signal from a uniaxial horizontal sensor (40) and an input signal from a limit switch (26), and a laser irradiation device
A control wiring board C having an energization circuit formed at (39) is fixed to the column (12).

The adjusting block (3) further includes an adjusting plate (36).
, A laser irradiation device (39) and a uniaxial horizontal sensor (40), and the adjusting plate (36) has a smooth horizontal upper surface and penetrates a horizontal axis (32) having grooves (31) formed at both ends. Bearing cylinder (3
(0) is formed on the back surface, and a spring wire (29) is fitted into grooves (31) at both ends of the horizontal shaft (32) that is penetrated, and both ends are rotatably supported by the support plate (22). At the same time, a nut installation hole (33) is provided at a position corresponding to the motor shaft hole (24), and the nut (35) is inserted into the hole with a horizontal pin (34) parallel to the horizontal shaft (32). The laser irradiation device (39) is configured to swing freely and the laser beam from the laser diode is diffused in a vertical plane direction by a rod lens (38) via a collimating lens to form a laser irradiation line. In a state where the optical axis is planarly aligned with the mounting reference straight line (37) coinciding with the horizontal axis (32), the inclined table (49) straddling the mounting reference line (37) at a right angle. ), The inclined table (49) is horizontally fixed on an adjustment plate (36) so that the support surface can be changed and adjusted in the left-right direction, further,
The uniaxial horizontal sensor (40) is configured to output the position of the bubble in the electrolytic solution as an analog signal by the electric detection means, and the adjustment plate is placed at a right angle over the mounting reference line (37). (36) is fixed by a spring band using a support column formed integrally with it, and an adjustment block section is used to eliminate the effect of backlash between the screw shaft (27) and nut (35).
(3) is connected to the horizontal support (2) by a tension spring (50).

The structure of the uniaxial horizontal sensor (40) will be described in detail with reference to FIGS. 4 to 6. The electrolytic solution (41) and the bubble (42)
The inner wall of the electrode placement chamber (43)
(V) a predetermined radius centered on the point (P) on the vertical line (V)
Is a rotator shape obtained by rotating an arc line (AL) bisected by a horizontal center line (H) orthogonal to the vertical line (V), and the horizontal center line (H) An insulating material (e.g., made of polycarbonate) formed of an enclosing wall (44a) having a circular cross section and having an inner peripheral wall surface of JIS Rmax 0.2S or less with high three-dimensional surface roughness and a sealing end body (44b) The electrode is disposed at a position corresponding to the vertical line (V) on the electrode holder (44) made of a metal material having a low ionization tendency such as 18K (Au) so as to have a uniform surface area. A common electrode (45) projecting radially through the chamber (43), and an electrode more than the common electrode (45) at a symmetrical position along the horizontal center line (H) about the common electrode (45). Peripheral electrodes (46) projecting high in the radial direction and having a uniform surface area in the disposition chamber (43) are penetrated in a liquid-tight state, respectively, and the electrode disposition chamber (43) , The bubble (42) and an electrolyte which is mixed in a ratio which is a predetermined value in the impedance horizontal state between the surface tension is small electrodes each other and (41), said common electrode (45) is always electrolyte
It is immersed in (41) and does not touch bubbles (42), and is sealed from sealing holes (47) and sealed (48) so that the surrounding electrode (46) does not touch bubbles in a horizontal state. . Since the laser irradiation device (39) has a known configuration,
A detailed description of the configuration will be omitted, ending with the description of the configuration within the above description.

The electrolytic solution (41) is a mixture of purified water as a solvent, magnesium sulfate as a solute, and anhydrous methanol or ethanol as a solution at a ratio such that the impedance between the electrodes is about 40 to 50 KΩ. And
Those having a high boiling point and a low freezing point were used.

The uniaxial horizontal sensor (40), as shown in the sensor up diagram of FIG. 7, converts an alternating current into a predetermined basic pulse of 4 KHz by an oscillator OSC and a 50% duty by a frequency divider F / F. This pulse is applied to the peripheral electrode (3) of the uniaxial horizontal sensor (S) by the buffer amplifier SP1 and the buffer amplifier SP2 of the opposite phase pulse, and the common electrode (2) From the signal amplifier circuit AMP1, the output of which is pulled into the analog switch MP via the amplifier circuit AMP2 having a zero drift correction function by the variable resistor VR1, and the frequency divider F /
The synchronous signal from F is pulled into the analog switch, the analog signal synchronized in the analog switch is sent to the amplifier AMP3 via the sample & hold circuit SH1, and the amplifier AMP3 outputs a predetermined analog signal according to the inclination. Means for driving the control motor (25) to rotate forward and reverse by an analog signal can be employed, but is not limited thereto, and can be replaced by a known converting means.

The slit (SL) is made to coincide with the laser irradiation direction of the laser irradiation device (38) to the device main body portion A configured as described above and the impedance between the electrodes is set to a predetermined value in a horizontal state. In this state, the cover cap B is crowned and fixed, and the laser device for marking in the vertical direction is completed.

In the above embodiment, the control motor (25) is used as an adjusting means of the adjustment plate (36) by the control motor (25).
In the above description, the screw shaft (27) integrated with the drive shaft (28) and the nut (35) are used, but the adjustment plate (36) is connected to the horizontal shaft.
(32), the horizontal shaft (32) is rotatably supported by the horizontal support (2), and the control motor fixed to the horizontal support (2)
The rotation of (25) can be transmitted to the horizontal shaft (32) by gear transmission means to control the swing of the adjusting plate (36).

The above-configured vertical marking laser device according to the present invention is mounted on an arbitrary surface such as a room or fixed on a tripod base, and turned on when the horizontal shaft (32) is turned on. A control motor (25) is driven by an output signal from a single-axis horizontal sensor (40) on an adjustment plate (36) that is swingably supported about the center, thereby controlling the adjustment plate (36) to maintain a horizontal position. Laser irradiation device (39) fixed on adjustment plate (36)
Is radiated by a horizontal rod lens (38) passing through the optical axis, and is radiated to the outside through the slit (SL) of the cover cap B, irradiating an accurate vertical laser irradiation line to a wall surface or the like. This line is used as a reference when performing work such as room layout and partitioning.

[0022]

According to the vertical ink mark laser device according to the present invention constructed as described above, the uniaxial horizontal sensor on the swingably supported adjustment plate is used to control the distance between the electrodes which changes according to the position of the bubble. The horizontal support is automatically and accurately converted to an electrical signal by directly converting the change in impedance into an electrical signal and outputting the analog signal as an angle information signal. In addition, since the horizontal control is quickly performed, the laser irradiation is adjusted and fixed to the horizontal support simply by setting the laser irradiation direction to the desired wall direction by placing it at a predetermined position in the work place that requires vertical blackout The laser beam from the device is diffused by a horizontal rod lens to create a high-precision, accurate, continuous laser irradiation line.
For example, it is clearly displayed at a predetermined position on the ceiling surface, the wall surface, or both, and can be used as a vertical reference line when performing a work such as a room layout or a partition. it can.

[Brief description of the drawings]

FIG. 1 is a schematic exploded front view showing a device body part A of a vertical blackout laser device according to an embodiment of the present invention divided into three parts.

FIG. 2 is a schematic plan view of an adjustment block (3) of FIG. 1;

FIG. 3 is a schematic side view showing a main body portion of a vertical blackout laser device according to an embodiment of the present invention, in which a part of a cover cap B is shown in cross section.

FIG. 4 is a longitudinal sectional view of a uniaxial horizontal sensor used in the device of the present invention.

FIG. 5 is a side view of FIG. 4;

6 is a cross-sectional view of the uniaxial horizontal sensor shown in FIG.

FIG. 7 is an explanatory diagram of sensor up of the one-axis horizontal sensor.

[Explanation of symbols]

 A Device body B Cover cap C Control circuit board (SW) Device start switch (SL) Slit (1) Body base (2) Horizontal support (3) Adjustment block (11) Direct mounting leg (12) Support (13) ) Battery compartment with lid (21) Substrate (22) Support plate (23) Switch fixing plate (24) Motor shaft hole (25) Control motor (26) Limit switch (27) Screw shaft (28) Drive shaft ( 30) Bearing tube (32) Horizontal shaft (33) Nut installation hole (35) Nut (36) Adjustment plate (37) Mounting reference straight line (38) Rod lens (39) Laser irradiation device (40) Uniaxial horizontal sensor (41) Electrolyte (42) Bubbles (44) Electrode holder (45) Common electrode (46) Peripheral electrode

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) G01C 15/00-15/14 G01C 9/00-15/36 B25H 7/04

Claims (5)

(57) [Claims] 1. An adjusting plate which is swingably controlled by a control motor on a horizontal support supported and fixed to a support standing upright on a main body base, about a horizontal axis supported by the horizontal support. And a laser irradiation device configured to form a laser irradiation line by diffusing a laser beam irradiated in a direction parallel or horizontal to the horizontal axis with a horizontal rod lens whose center passes through the optical axis; and A single-axis horizontal sensor that outputs an analog signal from a bubble position change in a direction perpendicular to the axis as an analog signal by an electric detection means to thereby drive and control the control motor, is provided on the adjustment plate. Laser device for marking out directions. 2. The driving means of the adjusting plate by a control motor,
To one edge of the adjustment plate in the direction perpendicular to the horizontal axis, one end of a tension spring whose other end is connected to a horizontal support is connected, and to a nut supported swingably by a horizontal pin parallel to the horizontal axis. 2. The laser device according to claim 1, wherein a screw shaft integral with a drive shaft of the control motor fixed to the horizontal support is screwed. 3. An adjusting means of the adjusting plate by a control motor,
The adjusting plate is fixed to a horizontal axis, the horizontal axis is rotatably supported on a horizontal support, and control rotation of a control motor fixed to the horizontal support is transmitted to the horizontal axis by gear transmission means. Item 4. A laser device for marking in the vertical direction according to Item 1. 4. The uniaxial horizontal sensor according to claim 1, wherein the inner wall of the electrode installation space for enclosing the electrolyte and the air bubbles has a predetermined radius centered on a point on the vertical line and an arc line bisected by the vertical line. A rotating body shape obtained by rotating around a horizontal center line orthogonal to the vertical line, and a surrounding wall of an inner peripheral wall surface having a high three-dimensional surface roughness having a circular cross section perpendicular to the horizontal center line, and a sealing member. A common electrode that projects radially through the electrode holder at a position corresponding to the vertical line on an electrode holder made of an insulating material formed with the end body, and extends along a horizontal center line with the common electrode as a center. At the symmetrical position, surrounding electrodes that protrude higher in the radial direction in the electrode disposition chamber than the common electrode and have a uniform surface area penetrate in a liquid-tight state, and bubbles and surface tension are formed in the electrode disposition chamber. Small impedance between electrodes The common electrode is always immersed in the electrolyte so that the electrolyte does not touch the bubbles, and the surrounding electrodes do not touch the bubbles in the horizontal state. 4. The laser device for marking in the vertical direction according to claim 1, wherein the laser device is configured to enclose and output an analog signal therefrom. 5. The common electrode and the surrounding electrode are made to have a uniform surface area by polishing the surface of a metal material having a low ionization tendency, such as 18K (Au).
Magnesium sulfate as a solute and anhydrous methanol or ethanol as a solution are mixed at a ratio that gives an impedance between electrodes of about 40 to 50 KΩ, and a mixture with a high boiling point and a low freezing point is used. Oscillator is used to generate a basic pulse, and frequency divider is 50% duty
This pulse is applied to the surrounding electrodes by a buffer amplifier and a buffer amplifier of the opposite phase pulse, and in order to extract information from this, a signal is pulled into the amplifier circuit from the common electrode, and the output has a zero drift correction function. The analog signal is drawn into the analog switch through the two amplifier circuits, the synchronization signal from the frequency divider is drawn into the analog switch, and the analog signal synchronized in the analog switch is sent to the amplifier through the sample and hold circuit. 5. The laser device for marking in the vertical direction according to claim 1, wherein the device is a uniaxial horizontal detection device as means for outputting a predetermined analog signal according to the inclination.