JP2003074746A - Pipe laser with remote control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pipe laser enabling one person to easily and positively adjust the azimuth of laser beams even when the whole pipe is extremely long. SOLUTION: This pipe laser has a pipe laser body 1 having a built-in image pickup device and provided with a telescope 12 with a focusing function, and a remote control device 10 provided with an image display part 16 for displaying an image acquired by the image pickup device. The pipe laser body 1 is provided with a lighting system for irradiating the front.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe laser used for laying pipes such as water and sewer pipes along a set gradient.

[0002]

2. Description of the Related Art As shown in FIG. 2, a conventional pipe laser has a pipe laser main body 1, a target 2 and a remote control device. The pipe laser body 1 is
It is installed at a laying start portion of a pipe 3 such as a vertical shaft 4 and emits a laser beam 5 showing a set gradient from the front surface thereof. Then, when the laser beam 5 irradiates the intersection of the crosshairs 20 of the target 2 attached to the end of the pipe 3 laid in the hole 6 dug in the ground, the pipe 3 was positioned at the correct set gradient. To know that. The target 2 was semi-transmissive to light, and it was possible to know which part of the target 2 the laser beam 5 was radiating from the back surface of the target 2.

With such a conventional pipe laser, when work is interrupted due to sunset or the like and work is started the next day,
Regarding the gradient, it has a built-in automatic leveling mechanism (not shown) and can automatically detect the horizontal plane and emit the laser beam 5 at the set gradient. However, regarding the azimuth of the laser beam 5, It was necessary to set the azimuth again so as to match the axial direction of the pipe 3 already laid. Therefore, the direction of the laser beam 5 is adjusted from the back surface of the target 2 by the remote control device.

For this reason, Japanese Patent Laid-Open No. 174468/1994 discloses a remote control device incorporated in the target 2.

[0005]

However, in the prior art, when many pipes 3 are connected and the whole pipe becomes very long, the laser beam 5 hits the middle of the pipe 3 and reaches the target 2. The laser beam 5 will not reach the target 2 from the back surface of the target 2.
It was not easy to adjust the azimuth of the laser beam 5 because it had no idea which direction the laser beam was facing. Further, the laser beam main body 1 and the remote control device are too far apart from each other, or there is an obstacle between them, so that communication between the two may be interrupted and remote control may become impossible.

Therefore, there has been a demand for a pipe laser which can easily and surely adjust the direction of the laser beam by one person even when the entire pipe is very long.

[0007]

In order to solve the above problems, the invention according to claim 1 provides a pipe laser main body having a telescope having a built-in image pickup device and having a focus function, and the image pickup device. And a remote control device having an image display section for displaying an image.

In the invention according to claim 2, the invention according to claim 1
In the invention according to, the pipe laser main body includes a lighting device.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment of the present invention. The pipe laser of this embodiment includes a pipe laser body 1, a target 2 and a remote control device 10.

The pipe laser main body 1 has a focusing function and has a telescope 12 having an image pickup device and an illumination device (not shown) built therein, a transmission means (not shown) for transmitting an image obtained by the image pickup device to a remote control device, and a transmission device (not shown). Equipped with automatic leveling mechanism. However, the illumination device does not necessarily have to be built in the telescope 12, and may be provided at an appropriate position on the front surface of the pipe laser body 1. Further, on the rear surface of the pipe laser body 1, a gradient setting for setting the vertical direction of the laser beam 5 with respect to the pipe laser body 1, an azimuth adjustment for adjusting the horizontal direction of the laser beam 5, a laser beam 5 or Lighting device O
An operation unit 7 for performing N, OFF, etc., a display unit 8 for displaying a set value of a set gradient, a direction, etc., and a handle 9 for holding it by hand during transportation are provided.

The lighting device is provided inside the pipe or the target 2.
The operation unit 7 or the operation unit 14 of the remote control device 10 is turned on or off as necessary.
It is supposed to be FF. Then, regarding the telescope 12 and the illuminating device, the optical axis of the telescope 12 and the irradiation light 13 of the illuminating device are configured to be substantially parallel or coaxial with the visible laser beam 5 emitted from the pipe laser body 1.
Therefore, near the center of the image captured by the telescope 12,
It is irradiated with the laser beam 5 and the irradiation light 13 of the illumination device.

The target 2 is semi-transmissive to light and has a target plate 22 on which a cross line 20 is drawn. Since the target 2 is the same as the conventional one, its explanation is omitted.

The remote control device 10 adjusts the azimuth of the laser beam 5, zooms the telescope 12, turns the laser beam 5 or the illuminating device ON and OF.
An operation unit 14 for performing F and the like, and an image display unit 16 for displaying an image obtained by an image pickup device built in the telescope 12.
And a receiving means (not shown) for receiving a signal such as an image transmitted from the pipe laser main body 1. Also,
The image display section 16 can also display a set value such as a set gradient and an alarm such as an abnormality of the pipe laser body 1.
The pipe laser main body 1 and the remote control device 10 may communicate with each other by any means such as radio waves, infrared rays, ultrasonic waves, or wires.

Power for the pipe laser body 1 is supplied from an internal battery (not shown). On the rear surface of the pipe laser body 1, there is provided a charging connector 17 for connecting an internal battery and an external charger with a cable. Since the laser beam 5 of the pipe laser main body 1 or the lighting device can be turned on / off by the remote control device 10, the worker goes down into the pit and turns on / off.
Since it is not necessary to do so, it is convenient and power saving can be achieved.

When the pipe laser main body 1 as described above is installed at the laying start portion of the pipe, the automatic leveling mechanism automatically detects the horizontal plane and emits the laser beam 5 at the set gradient. Then, the inside of the pipe is displayed on the image display unit 16 by the image pickup device built in the telescope 12, and when the crosshairs 20 of the target 2 attached to the end of the pipe are focused, the crosshairs 20 are displayed on the image display unit 16. And the irradiation position of the laser beam 5 is displayed.
Therefore, the operation unit 14 on the remote control device 10
By operating the laser beam 5 to set the irradiation position of the target 2
The azimuth of the laser beam 5 is adjusted so as to coincide with the cross line 20. At this time, if the inside of the pipe is dark, the operation unit 7 of the pipe laser main body 1 or the remote control device 1
The operating unit 14 of 0 is operated to turn on the lighting device.

As described above, according to the pipe laser of the present embodiment, the laser beam 5 irradiates which part of the pipe the laser beam 5 irradiates depending on the state inside the pipe which is always displayed on the image display section 16 of the remote control device 10. Since it is known whether or not the direction of the laser beam 5 can be adjusted easily and reliably by one person from an appropriate position near the pipe laser body 1. Therefore, if the pipe laser body 1 and the remote control device 10 are disconnected from each other due to an extremely long pipe or the presence of an obstacle,
The inconvenience that the orientation of the laser beam 5 cannot be adjusted does not occur. Further, since the illuminating device is provided together with the telescope 12, it is possible to see a distant state in the pitch-black pipe, so that an abnormality in the pipe can be easily detected at an early stage.

[0017]

As described above, according to the structure of the first aspect of the present invention, the position of the laser beam in the pipe is always determined by the state of the inside of the pipe displayed on the image display section of the remote control device. Since it is known whether or not the laser beam is emitted, the direction of the laser beam can be adjusted easily and reliably by one person from an appropriate position near the pipe laser body. Therefore, the communication between the pipe laser main body and the remote control device is interrupted, so that the azimuth of the laser beam 5 cannot be adjusted.

According to the second aspect of the invention, the same effect as that of the first aspect of the invention can be achieved, and since a distant state in the pitch-black pipe can be seen, abnormalities in the pipe can occur at an early stage. Easy to find.

[Brief description of drawings]

FIG. 1 is a perspective view of a pipe laser of the present invention.

FIG. 2 is a plan view illustrating a state in which a pipe is laid using a conventional pipe laser.

[Explanation of symbols]

1 Pipe laser body 2 targets 10 Remote control device 12 telescope 14 Operation part 16 Image display section

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Claims (2)

[Claims] 1. A pipe laser body having a built-in image pickup device and having a telescope having a focusing function, and a remote control device having an image display section for displaying an image obtained by the image pickup device. A pipe laser with a remote control device. 2. The pipe laser with a remote control device according to claim 1, wherein the pipe laser main body includes an illuminating device.