Laser level

Abstract

To provide a laser marker that enables quick and easy marking work without being affected by restrictions of an installation site.SOLUTION: A laser marker 1 includes a body 10, a support member 20 supporting the body 10, and a swinging body 40 supported to the body 10 in a swingable manner by a gimbal mechanism 30. The laser marker 1 emits laser light from a laser light source 42 provided on the swinging body 40. The support member 20 includes four or more leg portions 21. The leg portions 21 are configured to be capable of bending in any direction and to be capable of holding a state after bending.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a laser marking device. [Background technology]

[0002] A conventional laser marking device is known in which a laser unit holder that supports a light source unit is supported so that it can swing by a gimbal mechanism (for example, Patent Document 1). A laser marking device equipped with a gimbal mechanism can maintain a predetermined posture of the light source unit even if the tripod that supports it is installed in an inclined position, and can perform marking work by irradiating the laser light vertically or perpendicularly. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-139696 Summary of the Invention [Problem to be solved by the invention]

[0004] However, with the above-mentioned conventional laser level, for example, at sites where reinforcement is being laid or where materials are placed, not only does it require a certain level of tripod height, but the location of the tripod is also easily restricted, so there is a risk that the laser level will tilt excessively after installation, making it difficult to maintain the position of the light source unit even when equipped with a gimbal mechanism.

[0005] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a laser marking device that can quickly and easily perform marking work without being restricted by the installation location. [Means for solving the problem]

[0006] The above-mentioned object of the present invention is achieved by a laser marking device which comprises a main body, a support member which supports the main body, and a oscillating body which is oscillatably supported on the main body by a gimbal mechanism, and which irradiates laser light from a laser light source provided on the oscillating body, wherein the support member has four or more legs which are freely bendable in any direction and which are configured to be able to maintain a bent state.

[0007] In this laser marking device, the oscillator can be provided with a distance measurement target that can be collimated by a total station.

[0008] The main body may also include an upper frame and a lower frame formed in a rectangular shape, and rod-shaped connecting members that connect the corners of the upper frame and the lower frame, the oscillating body being supported by the upper frame and irradiating laser light from the laser light source in a vertical direction, and the legs being fixed near the four corners of the lower frame. [Effects of the Invention]

[0009] According to the present invention, it is possible to provide a laser marker that can quickly and easily perform marking work without being restricted by the installation location. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a front view of a laser marker according to an embodiment of the present invention; [Figure 2] FIG. 2 is a plan view of the laser marking device shown in FIG. [Figure 3] FIG. 2 is a diagram showing an example of a state in which the laser marking device shown in FIG. 1 is used. [Figure 4] FIG. 10 is a diagram showing an example of a state in which a laser marking device according to another embodiment of the present invention is used. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. Fig. 1 is a front view of a laser marker according to one embodiment of the present invention, and Fig. 2 is a plan view of the laser marker shown in Fig. 1. In Fig. 1, a part of the laser marker is shown in cross section AA of Fig. 2.

[0012] As shown in Figures 1 and 2, the laser marking device 1 comprises a main body 10, a support member 20 that supports the main body 10, and an oscillating body 40 that is oscillatably supported on the main body 10 by a gimbal mechanism 30.

[0013] The main body 10 comprises an upper frame 11 and a lower frame 12, each having a rectangular outer edge such as a square. The upper frame 11 has a rectangular opening 11a, and the lower frame 12 has a circular opening 12a. The upper frame 11 and the lower frame 12 are spaced apart from each other vertically, and their four corners are connected by rod-shaped connecting members 13.

[0014] The support member 20 includes four legs 21 fixed to the lower frame 12 so as to extend downward from the vicinity of each of the four corners of the lower frame 12. As shown in FIG. 1 , each leg 21 is formed by connecting multiple leg pieces 22. Each leg piece 22 includes a hollow truncated cone-shaped receiving portion 22a that widens toward one end and a spherical portion 22b connected to the other end of the receiving portion 22a. The legs 22 are bendable by fitting the spherical portion 22b of one leg piece 22 into the receiving portion 22a of the other leg piece 22. The bent state of the legs 21 is maintained by strong frictional engagement between the receiving portions 22a and the spherical portions 22b of the legs 22. The lower ends of the leg pieces 22 are provided with spherical anti-slip portions 23 made of rubber or the like. These anti-slip portions 23 prevent slippage between the legs 21 and the floor F, regardless of the direction in which the leg pieces 22 are bent, ensuring reliable support of the main body 10.

[0015] The gimbal mechanism 30 includes a rectangular gimbal frame 32 rotatably supported around first axes 31a and 31b on the inner edge of the opening 11a of the upper frame 11, and a band-shaped holding plate 34 rotatably supported around second axes 33a and 33b on the inner edge of the opening of the gimbal frame 32, with an oscillator 40 attached to the holding plate 34. As shown in FIG. 2, the first axes 31a and 31b and the second axes 33a and 33b are arranged perpendicular to each other, and the oscillator 40 is supported so as to be able to oscillate around the two orthogonal axes (the first axes 31a and 31b and the second axes 33a and 33b). In order to quickly converge the oscillation of the oscillator 40, damping means (not shown), such as rotary dampers, may be provided on the first axes 31a and 31b and the second axes 33a and 33b.

[0016] The oscillator 40 has an oscillator main body 41 equipped with a distance measurement target 41a made of a reflecting prism, and the position of the target 41a can be measured by collimating it with a total station (described later). A screw hole is formed in the upper part of the oscillator main body 41, and the screw portion 42a of a fastening member 42 is inserted into a through-hole formed in the holding plate 34 and screwed into the screw hole in the oscillator main body 41, thereby fixing the oscillator main body 41 to the holding plate 34. A laser unit 43 having a laser light source 43a is attached to the lower part of the oscillator main body 41. The laser light source 43a irradiates laser light vertically downward due to the action of the gimbal mechanism 30.

[0017] As shown in Figure 3, the laser marking device 1 having the above configuration can measure the position of the target 41a of the laser marking device 1 by emitting distance measurement light from the total station 100. The position measured by the total station 100 is notified in real time to a terminal or the like of the worker who moves the laser marking device 1. The laser marking device 1 emits laser light vertically downward from the laser light source 43a at the measurement position, forming a spot on the floor surface F. The worker can install the laser marking device 1 at the measurement position on the floor surface F and perform marking work based on the position of the laser spot.

[0018] The support member 20 of the laser marker 1 has four legs 21, and each leg 21 is configured to be bendable in any direction and to be able to maintain its bent state, so that by bending each leg 21 according to the installation environment, work can be performed quickly even in environments where marking work is difficult with conventional laser markers. For example, as shown in Figure 3, when marking work is performed using the laser marker 1 at a site where reinforcement is being laid, by bending each of the four legs 21 so that they straddle the intersecting rebars R, the device can be easily installed so that tilting of the main body 10 after installation is suppressed, and the gimbal mechanism 30 can be effectively used to perform marking work accurately.

[0019] The length of each leg 21 is preferably long enough to allow smooth work even at a site where reinforcement is being arranged or where materials have been placed, and can be set to, for example, 45 to 50 cm. It is preferable that each leg 21 be the same length, but legs 21 of different lengths may be included. The number of legs 21 may be five or more to enable more stable installation, but if there are too many legs 21, handling becomes cumbersome and manufacturing costs increase, so four, as in this embodiment, is preferable.

[0020] Furthermore, the position of the target 41a can be finely adjusted by individually operating each leg 21 to change the bending shape after installation on the floor F. Because the four legs 21 are fixed near the four corners of the lower frame 12, the position can be adjusted in a specific direction with high precision, and the target 41a can be moved quickly and easily to a desired position.

[0021] Each leg 21 may have a configuration other than that of this embodiment as long as it is bendable in any direction and can maintain its bent state. For example, the legs may be formed by inserting multiple spherical bodies into a bendable linear body such as a wire, or the legs may be formed from a flexible bellows tube.

[0022] The laser marker 1 of this embodiment is configured to emit laser light vertically downward from the laser light source 43a toward the floor surface F. However, as shown in FIG. 4, the laser unit 43 may be attached to the top of the oscillator 40, and the laser light source 43a may emit laser light vertically upward toward the ceiling surface C while the gimbal mechanism 30 is operating. With this configuration, even if the total station 100 cannot directly emit distance measurement light toward the ceiling surface C due to an obstruction such as a beam B, the laser light source 43a of the laser marker 1 can emit laser light toward the ceiling surface C. This eliminates the need to reset the total station 100, allowing for quick and easy marking work. The laser unit 43 can also be configured to emit laser light horizontally from the laser light source 43a.

[0023] The laser marking device of the present invention may be configured to include a distance measurement target 41a that can be collimated by the total station 100 as in this embodiment, or may be configured to be usable alone without the target 41a. [Explanation of symbols]

[0024] 1 Laser level 10 Main Unit 11 Upper frame 12 Lower frame 13 Connecting member 20 Support member 21 Legs 30 Gimbal mechanism 40 Oscillator 41a Target 43 Laser unit 43a Laser light source 100 total station

Claims

1. A laser marking device comprising a main body, a support member for supporting the main body, and a swinging body swingably supported by the main body by a gimbal mechanism, wherein the laser marking device irradiates laser light from a laser light source provided on the swinging body, the support member has four or more legs; The leg portion of the laser marking device is configured to be bendable in any direction and to be able to maintain the bent state.

2. 2. The laser marker according to claim 1, wherein the oscillator is provided with a distance measurement target that can be collimated by a total station.

3. the main body includes an upper frame body and a lower frame body formed in a rectangular shape, and rod-shaped connecting members that connect corners of the upper frame body and the lower frame body to each other; the oscillator is supported by the upper frame and irradiates laser light from the laser light source in a vertical direction; 3. The laser marker according to claim 1, wherein the legs are fixed to the lower frame in the vicinity of four corners thereof.

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