JPH0894359A - Vertical laser target - Google Patents

Abstract

PURPOSE: To quickly and accurately carry out the replumbing work for a steel frame column for building by using vertical laser equipment. CONSTITUTION: When a vertical laser target 12 provided with a fitting member 1 which can be fitted to one surface of a steel frame column, projecting member 2 which is perpendicularly fixed to the member 1, sliding member 3 which slides in the direction in which the member 3 gets nearer to or farther from the member 1, and target plate 4 which slides in the direction parallel to the member 1 along a guide 7 for target plate provided on the member 3 is fixed to one surfaces of steel frame column and the sliding member 3 and target plate 4 are respectively slid in the vertical and horizontal directions at the time of replumbing of the column by using vertical laser equipment, the replumbing work of the steel frame columns can be carried out by only fixing the same target to the column even when the columns have different sizes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical laser target to be mounted on a steel column as a target when re-installing work using a vertical laser device.

[0002]

2. Description of the Related Art As shown in FIG. 3, there is a conventional method of fixing one target to a steel column when performing a rebuilding operation using a vertical laser device.

In this method, the sizes of the steel columns are usually not the same, and the columns gradually become thinner toward the top. Therefore, it is necessary to replace the target with a different size each time the size of the columns changes.

Therefore, a target for each size of the steel column was required.

As another method, as shown in FIG. 4, there is a method of holding the target by hand and aligning the points.

According to this method, since the target is not fixed to the steel column, hand shake and the like are likely to occur in a construction site where accuracy is required, which is unsuitable. Also, a worker was only required to hold the target.

[0007]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above circumstances, and accurately reconstructs a steel column by using a single target to irradiate laser light emitted vertically upward. , Is intended to be done quickly.

[0008]

The vertical laser target of the present invention receives laser light emitted vertically upward by a single target fixed to a steel column and performs the work of re-installing the steel column as follows. Are taking various measures.

That is, a mounting member that can be mounted on one surface of a steel column, a protruding member that extends at a right angle from the mounting member, a slide member that slides in the perspective direction relative to the mounting member using the protruding member as a guide, and a slide member. It has a target plate that slides in a direction parallel to the mounting member using the member as a guide.

[0010]

[Operation] The vertical laser target of the present invention applies the laser beam irradiated upward to the vertical laser target already adjusted and set on the top of the steel column at the same position as the ground reference point. If combined, the work of rebuilding the steel columns can be performed accurately and quickly.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The vertical laser target according to the present embodiment will be specifically described below with reference to FIG. 1, but the present invention is of course limited to the specific configuration of this embodiment. is not.

As shown in the perspective view of FIG. 1, a vertical laser target 12 according to an embodiment of the present invention includes a projecting member 2 fixed at a right angle to a mounting member 1 and two magnets 5 on the mounting member 1. Prepare

The slide member 3 is provided with a guide 6 so as to be slidable along the projecting member 2 with respect to the mounting member 1 in the distance direction.

The slide member 3 further includes a target plate guide 7 on which the target plate 4 slides in a direction parallel to the mounting member 1.

In the slide member 3, a laser beam passage hole 8 is provided at the center of the target plate 4.

The slide member 3 and the target plate 4 are each provided with a mechanism for locking them at an arbitrary position within the sliding width.

In the work, first, a vertical laser device is aligned with a reference point provided on the ground by a known method, and a laser beam is emitted upward.

Next, the vertical laser target 12 is attached to the uppermost portion of the steel frame column to be put up and down again. In this embodiment, a magnet is used, but it may be mounted using screws, bands, or the like. Anyway, it suffices if the vertical laser target 12 can be fixed at a predetermined position.

By a known method, the distance and the direction from one surface of the steel column to the reference point are calculated, and the slide member 3 and the target plate 4 are slid and adjusted so as to be the distance and the direction.

When the cross point 11 attached to the target plate 4 completely matches the position of the reference point on the ground, the slide member lock 9 and the target plate lock 10
To the stop position and fix each.

The steel column is rebuilt so that the laser beam vertically radiated from the ground reference point matches the cross point 11 of the target plate 4.

[0022]

As described above, according to the vertical laser target of the present invention, when rebuilding a steel column using a vertical laser device, the target portion is
Since it slides vertically and horizontally, even if the size of the steel column is different, one target can always be used.

Furthermore, since it can be easily fixed to a steel column,
The work is much more accurate and faster than the conventional method.

[Brief description of drawings]

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

FIG. 2 is a panoramic perspective view of the present invention.

FIG. 3 is a side view of conventional method 1.

FIG. 4 is a side view of conventional method 2.

FIG. 5 is a plan view of the present invention.

FIG. 6 is a plan view showing another embodiment 1 of the present invention.

FIG. 7 is a plan view showing another embodiment 2 of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Mounting member 2 ... Protrusion member 3 ... Slide member 4 ... Target plate 5 ... Magnet 6 ... Guide 7 ... Target plate guide 8 ... Laser light passage hole 9 ... Lock for slide member 10 ... Lock for target plate 11 ... Cross point 12 Vertical laser target 13 Vertical laser equipment

Claims (4)

[Claims] 1. A mounting member which can be mounted on one surface of a steel column, a projecting member fixed at a right angle to the mounting member, and a slide member which slides in the perspective direction relative to the mounting member using the projecting member as a guide. And a vertical laser target having a target plate that slides in a direction parallel to the mounting member using the slide member as a guide and that allows laser light to pass therethrough. 2. The vertical laser target according to claim 1, wherein a magnet is provided at a portion of the attachment member that is attached to the steel frame pillar. 3. The vertical laser target according to claim 1, wherein a hole is provided in the central portion of the slide member. 4. The vertical laser target according to claim 1, 2 or 3, wherein the slide member and the target plate have a mechanism for locking at an arbitrary position.