JPH05322574A - Marking point positioning apparatus using laser beam - Google Patents

Abstract

PURPOSE:To obtain a lightweight small-sized positioning apparatus using laser beam made easy to carry, operate and handle from such an aspect that a marking point is positioned on a high surface such as a ceiling and a side surface in building equipment construction. CONSTITUTION:A light emitting port 7 of laser beam (a), a switch operation port 8 and a level inspection port 9 are provided to the upper surface of a housing 1 having a light emitting device 2 based on a light emitting diode, a dry battery 4, a power supply opening and closing switch 5 and a level device 6 provided therein and a push button 5a is pressed from the switch operation port 8 to emit vertical laser beam (a) from the light emitting port 7. A prism 16 and a mirror 17 are attached to the horizotal U-shape frame 15 movably combined with the housing 1 and the prism 16 and the mirror 17 are positioned just above the light emitting port 7 by moving the horizontal U-shape frame 15 to refract the vertical laser beam (a) to horizontal laser beam a'.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a positioning device using a laser beam for positioning a point on a reference plane vertically upward or horizontally.

[0002]

2. Description of the Related Art At a construction site or the like, there has conventionally been a means for finding a black point by using a plumb bob or the like for positioning when mounting a device on a ceiling surface or another high place. An improved version of this is called a beam point. Vertical ink maker using light is known.

This is provided with two special lamps for projecting downwards to detect a fixed point in the projection cylinder and special lamps for projecting a projection chart image upwards, and the projection cylinder is made to stand on a reference plane by a tripod and a pendulum is provided. The projection tube is set vertically by the device,
The black and white dots are positioned and displayed on the ceiling surface or the like by using the upper and lower projected rays.

[0004]

According to the above-mentioned conventional means, after the projection cylinder equipped with the two upper and lower special lamps detects the level by the pendulum and operates the gyro by the handle to obtain a predetermined operating posture, Since it emits a light beam, the device is large in size, and it is troublesome to carry and carry, and the cost is high. Moreover, the laser can emit the laser only on the surface vertical to the earth axis.

[0005]

SUMMARY OF THE INVENTION In view of the above, the present invention has an object of eliminating the conventional inconvenience, and a light emitting device mainly composed of a diode which internally emits a laser beam in a vertical direction, and a dry battery for operating the light emitting device. A power supply circuit opening / closing switch and a level device equipped with a vertical laser beam emitting port from the light emitting device, an opening / closing switch operation port, and a level inspection port on the upper surface of the container. Further, a prism and a mirror for refracting a vertical laser beam in the horizontal direction are arranged in parallel on the lower surface of the upper portion of the U-shaped frame, and the prism and the mirror can be respectively positioned directly above the light emitting port. The feature is that the frame is movably combined with the container.

[0006]

In the device of the present invention, the container 1 is placed on the floor surface or a predetermined reference surface A, and the level device 6 is operated from the inspection port 9 to the level device 6.
After adjusting and confirming the horizontal posture of the case 1 while watching, if the push button 5a of the open / close switch 5 is pressed from the operation port 8 to close the connection circuit with the dry cell 4, the laser beam a is emitted by the laser diode. The light is emitted vertically upward from the light emitting port 7 and displayed as a colored dot-like point on the ceiling surface, for example.
Therefore, if the container 1 is placed so that the center of the light emitting port 7 coincides with the fixed point of the reference plane A, for example, by using the vertical and horizontal marker lines 13 in the illustrated example, the container 1 is placed on the reference plane A. 8 can be displayed as a positioning black point on the ceiling surface or the like as shown in FIG.

When the U-shaped frame 15 is moved so that the reflection prism 16 on the upper and lower surfaces of the U-shaped frame 15 is aligned directly above the light emitting port 7, the laser beam a is guided by the prism 16 as shown in FIG. Black dots can be displayed on the wall surfaces on both sides at the same time by spectrally refracting in both horizontal directions. In this case, the black dots have a semicircular dot shape.

Further, the U-shaped frame 15 is moved to move the mirror 17
Is set to a position directly above the light emitting port 7, the laser beam a can be refracted in one horizontal direction according to the inclination of the mirror 17, as shown in FIG.
If 7 is a semi-mirror, an upward black point can be obtained through the mirror 17 at the same time, as indicated by a phantom line in (c).

Further, as shown in (d) and (e) of FIG.
When 6 and 2 mirrors 17 are used, both laser beams a
Is capable of refracting and projecting light in the left and right horizontal directions by a prism and a mirror 17, respectively, and by making the mirror 17 a half mirror, it is possible to project light in the left and right horizontal directions as well as vertically upward (e). When two mirrors 17 are used as shown in FIG.
There is no need to install. If the prism 16 and the mirror 17 are movably installed in the apparatus of the present invention, the vertical projection direction of the laser beam a can be freely selected and used by adjusting the rotation and tilt thereof.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the positioning device of the present invention will be described with reference to FIGS.

Reference numeral 1 denotes a container containing a positioning component device according to the present invention. Inside thereof, a light emitting device 2 mainly composed of a diode for emitting a laser beam, and a lens barrel 3 for projecting the laser beam vertically upward. , A dry battery 4 as an operation source of the light emitting device 2, an opening / closing switch 5 of the power supply circuit, and a bubble level device 6 for measuring the levelness of the substrate 1, and a vertical laser on the upper surface of the casing 1. A light emission port 7 for the beam a, an operation port 8 for the push button 5a of the open / close switch 5, an inspection port 9 for the level device 6 and an inlet / outlet port 10 with a lid for the dry battery 4 are provided.

In the illustrated example, the container 1 is formed in a rectangular cube, but it is optional to make it into a cylindrical shape or any other shape, and the arrangement of internal equipment is not limited to that in the illustrated example. The light emitting port 7 and other opening positions provided on the upper surface of the container 1 also change arbitrarily according to the variation of the equipment position.

On the lower surface of the container 1 is a leg piece 1 for correcting the horizontal posture.
1 is provided and a magnet piece 12 is attached to the bottom so that the container 1 can be bound and used by magnetic force to the base A or side wall surface made of magnetic metal. In this case, of course, the horizontal straightening leg piece is used. 11 is removed and used.

Further, a vertical and horizontal sense line 13 intersecting at the center of the light emitting port 7 is provided on the outer surface of the container 1, and the sense line 13 is compared with the sense line B (FIG. 3) showing the fixed point position of the base A surface. By setting the position of the casing 1, the fixed point on the base A and the projection position of the laser beam a are matched, and the black point positioning is performed accurately.

The case where the fixed point of the reference plane A is projected vertically has been described above. Next, FIG. 5 through FIG. 5 show a case where the laser beam in the vertical direction is refracted in the horizontal direction to display the projected point in the horizontal direction. This will be described with reference to FIG.

As a means for refracting the vertical laser beam a in the horizontal direction, a U-shaped frame 15 provided with a reflecting prism 16 and a reflecting mirror 17 is used in combination with the case 1 with its open side facing downward.

Both the prism 16 and the mirror 17 are provided on the lower surface of the upper portion of the U-shaped frame 15, and the lower edges of the U-shaped frame 15 are fitted into and engaged with the guide grooves 18 provided on both outer surfaces of the casing 1. The prism 16 and the mirror 17 are separately provided by the movement so that the laser beam a emitting port 7 on the upper surface of the casing 1 is separately provided.
Use it by locating it just above.

That is, as shown by a phantom line in FIG.
If the prism 16 is moved to a position right above the light emitting port 7 and used, the vertical laser beam a is reflected and refracted at the center of the prism 16 on both left and right sides as shown in FIG. The beam a'a 'is projected, and if the U-shaped frame 15 is further moved from the position indicated by the phantom line in FIG. 6 so that the mirror 17 is positioned directly above the light emitting port 7, it is shown in FIG. As shown in FIG.
Then, the light is reflected and refracted to one side and projected as a horizontal laser beam a'only to one side.

In the case of the above (b), the shape of the both side horizontal laser beams a'is semicircular, but when the position of the prism 16 facing the light emitting port 7 is deviated from the center to one side, only one side is formed. Is projected as a horizontal laser beam a ',
The beam shape in this case is circular.

Therefore, the prism 16 and the mirror 17 are
Various catadioptric beams can be obtained depending on the mounting state,
For example, when the prism 16 and the mirror 17 are movably provided, they can be projected in each direction in the horizontal direction including the upper and lower oblique directions other than the horizontal direction by the rotation or inclination thereof.

The use examples shown in (d) and (e) of FIG. 8 show the case where the prism 16 is used and two mirrors 17 are used when two light emitting devices 2 are provided side by side.

When the horizontal laser beam a'is obtained by using the mirror 17 (c) (b), when the mirror 17 to be used is a half mirror, the half mirror is shown in (c) (b) with a phantom line. A beam a ″ that is projected vertically upward through the mirror can be obtained. In FIG. 5, FIG. 6, and FIG. 7, 19 is a horizontal laser beam a ′ that is opened on both side walls of the U-shaped frame 15.
The reference numeral 20 designates an outlet for the vertical beam a ″ by a half mirror opened on the upper surface of the U-shaped frame 15. The beam outlet is provided especially when the U-shaped frame 15 is formed of a frame member. It is possible to use the interval of the skeleton without needing to project. Incidentally, the U-shaped frame 15 for obtaining the laser beam a'in the horizontal direction is opened just above the light emitting port 7 when it is in the standby position which is not used. Therefore, it does not hinder the use of the vertical laser beam, but if the length of the U-shaped frame 15 is increased at the standby position between the prism 16 and the mirror 17 and an opening is provided directly above the light emitting port 7, the prism 16 and the mirror 16 can be provided. The vertical beam a can be taken out freely regardless of the standby position of 17.

The device for moving the U-shaped frame 15 for selecting the prism 16 and the mirror 17 and positioning either one of them directly above the light emitting port 7 may employ any means other than the illustrated example. As mentioned above, if the container 1 is a cylindrical type,
The shape of the U-shaped frame 15 also changes according to the internal device,
For example, with respect to the cylindrical casing 1, the U-shaped frame 15 to be combined with this has a cylindrical shape. Therefore, the prism 16 and the mirror 17 are attached along the circumferential direction of the upper surface, and in this case, the cylindrical frame 15 is rotated. Then, the prism 16 and the mirror 17 are selectively used.

[0024]

According to the present invention, a laser beam generator, a dry battery serving as a power source for the laser beam, necessary switches such as an opening / closing switch for the power source, and a level device are collectively installed in the container. A laser beam emitting port, a switch operating port, and a leveling device inspection port are provided on the top surface, so it is compact and can be easily carried with one hand, and is lightweight, and when necessary, It is also possible to store the container in an appropriate cover and carry it by hanging it on a belt or the like, and the operation is extremely easy to handle by simply pushing the push button from the switch operation port on the top of the container, Furthermore, since a horizontal laser beam can be taken out by moving a prism or a mirror provided on a U-shaped frame movably attached to the container directly above the light emitting port, the laser beam can be fixed on the reference plane. The upper or free taken out on both sides direction, the black point position can be displayed in precise position by the light spot has an easy To effect positioning when mounting the vessels in the correct position in the building construction and the like.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a positioning device according to the present invention.

FIG. 2 is a cutaway side view of FIG.

FIG. 3 is a plan view of FIG.

FIG. 4 is a front view of FIG.

FIG. 5 is a perspective view showing another embodiment of the device of the present invention.

FIG. 6 is a side view in which a part of FIG. 5 is cut away.

FIG. 7 is a front view of FIG.

FIG. 8 is a front view showing the operation of the present invention.

[Explanation of symbols]

 1 Instrument 2 Light emitting device 4 Dry battery 5 Open / close switch 5a Push button 6 Level device 7 Light emitting port 8 Switch operating port 9 Level inspection port 15 C-shaped frame 16 Prism 17 Mirror A Reference surface a Vertical laser beam a ′ Horizontal laser beam

Claims (2)

[Claims] 1. A light emitting device mainly composed of a diode for emitting a laser beam in a vertical direction inside, a dry cell for operating the light emitting device, and an upper surface of a casing equipped with an opening / closing switch of the power supply circuit and a level device, from the light emitting device. 2. A black dot positioning device using a laser beam, which is provided with a vertical laser beam emission port, an opening / closing switch operation port, and a level inspection port. 2. A prism and a mirror for refracting a vertical laser beam in the horizontal direction are provided in parallel on the lower surface of the upper portion of the U-shaped frame, and the prism and the mirror are individually arranged so as to be positioned directly above the light emitting port. The black dot positioning device using a laser beam according to claim 1, wherein a U-shaped frame is movably combined with the container.