JP5054643B2 - Laser positioning reflector - Google Patents

Description

  The present invention relates to a laser positioning / reflecting device used for marking work when building or constructing a building or a structure, and more specifically, reflects a laser beam projected from a laser projector and visually recognizes the reflected light. The present invention relates to a laser positioning / reflecting device that performs positioning.

  In general, in order to perform marking work at a construction site, a laser projector is installed at one of the two reference points, a laser receiver is prepared at the other reference point, and a single worker uses a laser from the laser projector. The light was projected toward the light receiver, and another worker confirmed that the light was received by the light receiver. At this time, in an outdoor field, there is a considerable distance between the laser projector and the laser receiver, and the operator on the laser receiver side gives a laser to the operator on the laser projector side while viewing the laser beam. By instructing the light projection direction, the laser light is adjusted to be received by the laser receiver.

  Therefore, in order to perform the marking operation, an operator is required on the laser projector side and the laser light receiver side, and it has been conventionally desired that the marking operation can be performed by one worker.

  Therefore, conventionally, a transmission means for transmitting a remote operation signal for remotely operating the laser optical device and a calculation means for calculating a difference between the center of the laser light receiving surface are provided so that the marking operation can be performed by one worker. There has been proposed a laser positioning device having a light receiving device that transmits a remote operation signal for rotating a laser beam to the center of a light receiving surface by a transmitting means (see, for example, Patent Document 1).

JP 2003-35539 A

  However, the above-described laser positioning apparatus has a complicated structure using an electronic circuit or the like, and is extremely expensive. In addition, since it is a precision device, it is prone to failure.

  The present invention solves the above problems, can confirm the reception of laser light with an energy-saving and extremely simple structure that does not require electricity such as an electronic circuit, and the operator on the laser projector side can perform ink marking work. An object of the present invention is to provide a laser positioning / reflecting device capable of performing the above.

  The present inventor diligently studied the above problems, and when a spherical receiver that reflects the laser beam is used as the laser receiver, the operator on the laser projector side can easily confirm the reception of the laser beam by visual recognition. And the present invention has been completed.

The laser positioning / reflecting device according to claim 1 reflects at least part of the laser light projected from the laser projector and has a light receiving surface formed in the shape of an arc surface obtained by cutting out a sphere or a part of the sphere. When forming the device body to which the reflector is provided, it possesses a center line that indicates the center of the light receiving surface formed on the apparatus main body, wherein the reflector is a glass or plastic reflects and transmits the laser beam It is configured as a feature.

Laser positioning reflector according to claim 2 is the placement claim 1 Symbol is configured as characterized in that the reflector is formed to be hollow.

According to a third aspect of the present invention, there is provided a laser positioning reflection device according to the second aspect, wherein the reflector is filled with a liquid.

Laser positioning reflector according to claim 4 is the mounting according to claim 1 Symbol is configured as characterized in that the reflector is formed on the solid.

According to a fifth aspect of the present invention , the laser positioning / reflecting device according to the first, second, third, or fourth aspect is characterized in that a mirror member is provided on the back surface of the reflector.

A laser positioning / reflecting device according to a sixth aspect is characterized in that, in the first, second, third, fourth, or fifth aspect , a level is provided in the apparatus main body.

  According to the laser positioning / reflecting device of the first aspect, since the reflector reflects at least a part of the laser light projected from the laser projector, the laser light is reflected toward the laser projector by the reflector. The operator on the laser projector side can visually recognize the reflected light. In addition, since the light receiving surface of the reflector is formed in a shape obtained by cutting out a sphere or a part of the sphere, when the laser light projected from the laser projector is projected onto one point of the center of the light receiving surface, Since the central point is approximately 90 degrees with respect to the incident direction of the laser beam, the central point is reflected by 180 degrees. Therefore, the laser beam reflected from the center point has high luminance and can be clearly seen even in the daytime. In addition, when the laser beam is incident on a part off the center of the light receiving surface, the incident surface is at a large angle exceeding 90 degrees with respect to the incident direction of the laser beam. Therefore, the operator of the laser projector cannot see it. Therefore, by shifting the projection direction of the laser light, the reflected light can be clearly visually recognized only when the laser light is incident on the center. As a result, positioning can be performed by matching the center line indicating the center of the light receiving surface formed in the apparatus main body with a desired reference point.

Furthermore, since the reflector is made of glass or plastic that transmits laser light, it cannot reflect all of the incident laser light, but can be provided at low cost.

According to the laser positioning reflection device of the second aspect , since the reflector is formed hollow, it can be provided at low cost.

According to the laser positioning / reflecting device according to the third aspect , since the liquid is filled in the hollow reflector, the refraction of the laser light entering the reflector is reduced, and thus the dispersion of the transmitted laser light is reduced. The visibility of reflected light is improved as compared with the hollow case.

According to the laser positioning reflection apparatus of the fourth aspect , since the reflector is formed solid, it can be provided at a very low cost.

According to the laser positioning / reflecting device according to the fifth aspect , since the mirror member is provided on the back surface of the reflector, the laser light transmitted through the reflector is reflected by the mirror member and reflected again toward the laser projector. Therefore, the reflected light toward the laser projector becomes both reflected light reflected by the surface of the reflector and reflected light reflected by the mirror member. Therefore, the operator of the laser projector can visually recognize the reflected light very clearly.

According to the laser positioning / reflecting device of the sixth aspect , since the level is provided in the apparatus main body, the apparatus main body can be easily leveled.

  In the laser positioning / reflecting device according to the present invention, a reflector for reflecting the laser light projected from the laser projector toward the laser projector is provided. The reflector only needs to reflect at least a part of the laser light projected from the laser projector, and the operator can visually recognize the part of the reflection. For example, it can be formed on a mirror surface or made of plastic such as glass or acrylic. When forming on a mirror surface, you may finish the metal in the mirror surface. When it is formed of glass or plastic, it is preferably colorless and almost transparent, but it can be used as long as the reflected light is visible even if it is colored in a desired color.

  The light receiving surface of the reflector is formed in a shape obtained by cutting out a sphere or a part of the sphere. The shape obtained by cutting off a part of the sphere is not particularly limited, and may be a hemispherical shape, for example, as long as it is an arc surface on the light receiving surface. Further, the sphere is not limited to a perfect circle and may be an ellipse.

  The reflector is provided in the apparatus main body, and a center line indicating the center of the light receiving surface is formed in the apparatus main body. The center of the light receiving surface is a portion closest to the laser projector direction on the light receiving surface, and is a portion having an angle of approximately 90 degrees with respect to the incident direction of the laser light. That is, at this center, the incident laser beam is reflected at an angle of 180 degrees.

  The center line of the device body is for installing the device body so that it matches the predetermined reference point in the field. By installing the device body so that the center line matches the reference point, the light receiving of the reflector The center of the surface is coincident with the reference point.

  An embodiment of a laser positioning reflection apparatus according to the present invention will be described with reference to the drawings. FIG. 1 is a front view of the laser positioning reflection device, FIG. 2 is a side view of the laser positioning reflection device, and FIG. 3 is a schematic view of the marking operation by the laser positioning reflection device.

  In the laser positioning / reflecting apparatus 1 shown in these drawings, reference numeral 10 denotes an apparatus main body, and a pair of legs 11 are provided on the lower surface of the apparatus main body 10. A male screw (not shown) is formed on the distal end side (upper side in the figure) of the leg portion 11 and is screwed to an eye screw formed in the apparatus main body 10. Therefore, since the length of the leg part 11 can be adjusted by rotating the leg part 11, the level of both leg parts 11 can be ensured by adjusting the length of both leg parts 11 even in an uneven place such as between the soils. be able to. Further, a plate-like stabilization plate 12 is formed at the lower end of the leg portion 11 so that the apparatus main body 10 can be installed stably.

  A mounting plate 13 projecting forward is formed in the approximate center of the front surface of the apparatus body 10, and a reflector 20 is fixed to the upper surface of the mounting plate 13. The reflector 20 is formed in a spherical shape with transparent glass filled with water, and a hemispherical portion on the front side thereof serves as a light receiving surface 21 for receiving laser light. Further, a mirror member 30 is provided at a portion corresponding to the reflector 20 of the apparatus main body 10 so that the laser beam transmitted through the reflector 20 can be reflected. Further, a center line 14 is formed in the central portion of the apparatus main body 10 in the vertical direction, and the center line 14 is set so as to coincide with the horizontal center a of the light receiving surface 21 of the reflector 20. Yes.

  A horizontal level 40 and a vertical level 50 are respectively provided at the upper end and the left end of the apparatus main body 10. When the apparatus main body 10 is installed on the ground or the like, the horizontal level 40 ensures the level. When installed on a wall or the like, the level can be secured by the vertical level 50.

  In order to perform the marking operation with the laser positioning / reflecting apparatus as described above, as shown in FIG. 3, first, the laser projector 60 is installed at one reference point A out of two predetermined reference points, The laser positioning / reflecting device 1 is installed at the other reference point B. At this time, the laser projection port 61 of the laser projector 60 is aligned with the reference point A, and the center line 13 (center a) of the apparatus main body 10 is used as a reference. Match with point B. Therefore, the reference point A, the laser projection port 61, the reference point B, the center line 14 and the center a are in a state of being positioned on a substantially straight line.

  Next, the laser beam 70 is projected from the laser projector 60. At this time, if the laser projection port 61 is perpendicular to the line segment connecting the reference point A and the reference point B, the laser beam 70 is centered a on the light receiving surface 21 of the reflector 20 as shown by a solid line in FIG. Therefore, a part of the light is reflected 180 degrees from the center a. Further, the laser beam 70 that has entered the reflector 20 without being reflected goes straight as it is and exits the reflector 20, but is reflected by the mirror member 30 by 180 degrees. Accordingly, since almost all of the projected laser beam 70 is reflected toward the laser projection port 61, the person operating the laser projector 60 can easily visually recognize the reflected light, and the positioning is accurate. It can be confirmed.

  Further, when the projection direction of the laser beam 70 at the laser projection port 61 is deviated from the center a, the laser beam 70 is incident on a position deviated from the center a of the light receiving surface 21 as shown by a one-dot chain line in FIG. become. Therefore, since the laser beam 70 is reflected in the lateral direction without being reflected by 180 degrees, the person operating the laser projector 60 cannot visually recognize the reflected light.

  As described above, the reflected light can be visually recognized only when the laser light 70 is incident on the center a, and the reflected light cannot be visually recognized when the laser light 70 is deviated from the center a. By searching for reflected light by rotating in the direction, accurate positioning can be easily recognized.

The front view of one Embodiment of the laser positioning reflective apparatus by this invention 1 is a side view of an embodiment of a laser positioning reflector according to the present invention. Schematic diagram of marking operation of laser positioning reflector according to the present invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Laser positioning reflective apparatus 10 Apparatus main body 20 Reflector 21 Light-receiving surface 30 Mirror member 40 Level spirit level 50 Level spirit level 60 Laser projector

Claims (6)

A reflector that reflects at least a part of the laser light projected from the laser projector and has a light-receiving surface formed in the shape of a sphere or an arcuate surface obtained by cutting a part of the sphere, and an apparatus main body provided with the reflector If, possess a center line that indicates the center of the light receiving surface formed on the apparatus main body, wherein the reflector is a laser positioning reflection, characterized in that it is formed of glass or plastic reflects and transmits the laser beam apparatus. Laser positioning reflector according to claim 1 Symbol mounting, characterized in that the reflector is formed to be hollow. 3. The laser positioning / reflecting device according to claim 2, wherein the reflector is filled with a liquid. Laser positioning reflector according to claim 1 Symbol mounting, characterized in that the reflector is formed on the solid. Laser positioning reflector according to claim 1, 2, 3 or 4, wherein the mirror member is provided on the back of the reflector. Laser positioning reflector according to claim 1, 2, 3, 4 or 5, wherein a level indicator is provided in the apparatus main body.

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