JPH0762394B2 - Building exterior paint film automatic peeling machine - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an exterior paint or other paint film formed on the exterior wall of a building, which is automatically controlled by remote control from the ground during repair work for reconstructing the exterior appearance of the building. The present invention relates to an automatic exterior coating film peeling machine for buildings used for the work of peeling and removing the coating film.

2. Description of the Related Art Conventionally, the work of peeling off the exterior coating film on the outer wall of a building has been done by building a scaffold around the building and climbing on it, or by an operator on a gondola holding and operating a water jet gun. The actual situation is that the peeling work is carried out manually.

Problems to be Solved by the Present Invention In the conventional manual work described above, since the water jet launching gun is heavy and the reaction of the high pressure water jet is large, it is a very heavy labor and a long continuous work is required. There was a problem that it could not be done and workability was poor.

In addition, since it is a manual work performed manually, there is a problem in that there are variations in construction and it is difficult to obtain a peeled surface with a uniform finish.

Furthermore, since it is extremely high work, it is extremely dangerous and it is difficult to maintain the balance of the body.Therefore, there is a high risk that the 1500 kg / cm ² high-pressure water jet firing gun may be accidentally operated to injure oneself or others in the vicinity. It was In addition, there are various problems such as spattering water jets and debris scattered around and contaminating them, making it impossible to perform related work in the vicinity or making it difficult to do.

Means for Solving the Problems As means for solving the problems of the above-mentioned prior art, an automatic exterior coating film peeling machine for a building according to the present invention is shown in FIG.
As shown in the preferred embodiments in FIGS. 4 to 4, (a) the gun unit 11 arranged to face the outer wall surface 2a of the building 2, and the gun unit 11 with predetermined strokes in the horizontal and vertical directions. A peeling device 6 configured by a gun moving mechanism for moving, and a frame structure for temporarily positioning and fixing the gun unit 11 and the gun moving mechanism for each work unit section on the outer wall surface 2a of the building 2, b) the peeling A bodywork device that supports the device 6 along the outer wall surface 2a of the building 2 so as to be movable in the horizontal and vertical directions, and c) energy required to operate the peeling device 6 is supplied from the ground, or the peeling device. It is assumed that it consists of the above-ground equipment part that receives and treats the waste such as peeled off waste removed from No. 6 on the ground. And d) the gun unit 11 in the peeling device 6 of b) above.
Is a bowl-shaped gun cover 25 that is in close contact with the wall, surrounds the gun 17, and installs a wall distance detection sensor 26 and a portion 28 for collecting debris on the gun cover 25, and based on the detection signal of the sensor. The gun unit 11 is provided with an advancing / retreating mechanism that moves the gun unit 11 closer to or farther from the wall surface.
At least four corners thereof are provided with suction cup mechanisms 36 that can be fixed to the wall surface 2a by suction or can be released therefrom, respectively.

The work peeling device 6 is suspended and supported by the electric monorail 1 which is a bodywork device and the lifting winch 5, and is straightly moved down along the outer wall surface 2a of the building 2 from the uppermost floor portion to the ground floor portion. The peeling work of the part is performed by. After that, the peeling device 6 is again pulled up to the uppermost floor portion, horizontally moved in one of the left and right directions by one pitch, and moved downward again to advance the peeling work in the next stage.

The downward movement of the peeling device 6 causes the vertical guide beam 7 constituting the gun feeding mechanism to move in increments of one maximum pitch. Then, every time it is moved down by one pitch, the peeling device 6 temporarily positions and fixes it on the wall surface 2a by operating the suction cup mechanism 36 attached to the frame structure, thereby enabling the peeling work of the work unit section. As soon as the work of the section is completed, the suction mechanism 36 is released and the work unit section is moved down by one pitch. Further, the horizontal (lateral) movement of the peeling device 6 by the bodywork device moves the maximum horizontal stroke of the horizontal guide beam 8 constituting the gun feed mechanism in one pitch increments.

When the peeling device 6 is positioned and fixed in each work unit section,
The high-pressure water supplied from the high-pressure pump 19 of the ground equipment through the high-pressure hose 18 is ejected as a high-pressure water jet through the gun 17, and the exterior coating film on the outer wall surface 2a of the building is peeled off.

The gun unit 11 described above has a gun cover by the advancing / retreating mechanism 14.
25 is brought into close contact with the wall surface 2a, and the gun cover 25 prevents the water jet water from scattering and collects the debris. The collected debris and drainage are temporarily collected in a recovery tank 31 by a receiving jog 28 and a suction blower 29 at the bottom of the gun cover, and led to a drainage gutter 33 of ground equipment through a drainage hose 32 for treatment.

The gun unit 11 is, for example, as shown in FIG.
As shown in, the work unit is first moved horizontally for the full horizontal stroke from the highest position, and when it reaches the end, it feeds vertically downward by one pitch, then moves horizontally in the opposite direction again, and so on. The work to remove the coating film on the wall of the work section is carried out thoroughly.

This automatic coating film peeling machine is used by being operated by remote automatic control from the ground.

Embodiment Next, an embodiment of the present invention shown in the drawings will be described.

FIGS. 1 and 2 show the use state of an automatic exterior coating film peeling machine, in which 1 is an electric monorail as a bodywork device, which is a cantilever 3 installed on the rooftop floor of a building 2. On rail 4
Is mounted substantially horizontally, and travels along the rail 4.

The electric monorail 1 suspends and supports a peeling device 6 via a lifting winch 5. The lifting winch 5, which is a member of the mounting device, is fixed on the upper side horizontal frame 6b forming the frame structure of the peeling device 6. By the operation of the lifting winch 5, the peeling device 6 is moved in the vertical direction (vertical direction) along the outer wall surface 2a of the building 2.

The frame structure of the peeling device 6 is configured such that the vertical frame 6a and the horizontal frame 6b are rigidly connected in a substantially square shape when viewed in the direction of FIG. Further, the vertical guide beams 7 constituting the gun moving mechanism are provided symmetrically on the outer wall surface 2a side of the building 2 in the arrangement parallel to the vertical frame 6b, and are arranged horizontally between the left and right vertical guide beams 7, 7. The guide beam 8 is installed so as to be vertically movable (parallel movement). As shown in FIG. 3 in detail, both ends of the horizontal guide beam 8 are installed on a slider 9 which holds the vertical guide beam 7 by a plurality of rollers. The slider 9 is configured to be suspended by wires 10a and 10a of vertical moving winches 10 and 10 installed on the upper horizontal frame 6b of the frame structure and vertically moved.

As a forward / backward mechanism for moving the gun unit 11 back and forth toward the outer wall surface 2a, the gun unit 11 is vertically arranged on a horizontal moving table 12 which is horizontally moved by a motor 13 on the horizontal guide beam 8 and is arranged vertically to the outer wall surface of the building 2. A feed screw shaft 14 is installed horizontally and rotatably, and a vertical moving table 15 is mounted on this screw shaft 14 so that a vertical movement can be carried out by a motor 16 which rotates the screw shaft 14 for vertical feed. ing.

A water jet launching gun 17 is projectingly provided on a gun head 22 on the front surface (left side surface in FIG. 3) of the vertical moving table 15 so as to vertically face the outer wall surface 2a of the building. It is connected to the high-pressure pump 19, which is a ground facility. The high-pressure water hose 18 is a trolley common to the high-pressure pump 19 described above.
It is wound around a hose reel 20 installed on top of 21, and the high-pressure water hose 18 is unrolled or wound as the peeling device 6 moves up and down.

Auxiliary smoothers 24, 24 having a rigid metal brush structure are attached to the same gun head 22 via a crank-shaped arm 23.
These water jet firing guns 17 and auxiliary smoothing tools 24
The gun unit 11 is surrounded by a bowl-shaped gun cover 25 attached to the vertical moving table 15. Gun cover 25
The motor 16 moves the vertical moving table 15 forward to bring the water jet water into close contact with the outer wall surface 2a of the building 2 and the water jet water emitted from the water jet launching gun 17 and thereby the outer wall surface 2a.
Prevents the debris of the exterior coating film peeled off from being scattered around. When the vertical movement table 15 is moved forward by the motor 16, the wall distance detection sensor 26, such as a whisker sensor, is placed at four positions (or eight equal parts or eight positions) where the outer circumference of the gun cover 25 is divided into four equal parts. It is arranged to confirm that the gun cover 25 is in close contact with the outer wall surface 2a. Therefore, it is possible to automatically follow the uneven state of the outer wall surface 2a.

For example, the wall distance detecting sensor 26 detects the position of the window existing at the outer wall surface 2a of the building and generates a control signal for interrupting the water jet to the window as shown in FIG. 4A. Further, as shown in FIG. 4B, in the corner portion of the outer wall of the building, it is also used to control so as not to project outward from the end of the corner and launch the water jet.

On the other hand, the gun head 22 is driven by a vibration motor 27 installed on the same vertical moving table 15, and the water jet launching gun 17 and the auxiliary smoothing tool 24 vibrate in a circular motion (eccentric movement) while exterior coating film. It is said that peeling is effectively performed on a surface having a certain width.

At the bottom of the gun cover 25, a receiving jogo 28 that repairs peeling dust and drainage is installed.This receiving jogo 28 is a suction blower 29 and a hose installed on the lower side horizontal frame 6b of the frame structure.
Connected at 30. The discharge side of the suction blower 29 is connected to a recovery tank 31 installed on the same horizontal frame 6b.

In other words, the drainage of the water jet fired from the water jet firing gun 17 and the debris of the coating film peeled off by this are received by the receiving jaw 28 under the gun cover and forcibly sucked and collected by the action of the suction blower 29. ,
Prevents unnecessary scattering and leakage. The drainage and peeled residue collected in the collection tank 31 in this way are drained by the drainage hose 32 to the drainage gutter 33, which is a ground facility, for disposal. However, the suction blower 29 and the recovery tank 31 may be installed on the ground.

Next, at the four corner positions of the frame structure of the peeling device 6,
A suction cup 36 is installed via a crank-shaped arm 35 that is individually rotated 360 ° by a motor 34. Each suction cup 36 is attached to the arm 35 via a hydraulic jack 38 that moves the suction cup 36 forward and backward with a predetermined stroke. That is, the suction cup 36 is brought into close contact with the outer wall surface 2a by being moved forward by the hydraulic jack 38. The vacuum pump 37 installed on the lower side horizontal frame 6b of the frame structure and an automatic valve mechanism (not shown) exert a vacuuming action, so that the suction cup 36 adsorbs and fixes the frame structure to the outer wall surface 2a of the building. Further, the vacuuming action is cut off by the automatic valve mechanism, and the suction cup 36 is retracted by the hydraulic jack 38, whereby the positioning and fixing of the frame structure is released.

After that, the frame structure of the peeling device 6 is lowered by one pitch to the next lower work unit section by the action of the lifting winch 5, and is automatically controlled to the horizontal posture, and then the hydraulic jack 38 is extended again to move the suction cup 36. The outer wall surface 2a of the building 2 is closely contacted, and the vacuum pump 37 evacuates the frame structure to firmly position and fix the frame structure.

At this time, when the close contact position of the suction cup 36 with respect to the outer wall surface 2a interferes with the adsorption action due to the time joint of the outer wall surface 2a or the cracks and irregularities of the concrete wall, or the corner portion of the building outer wall surface 2a (Fig. 4). In the case of B) and the suction cup on one side sticks out laterally outside the wall surface, the arm 35 is moved by the motor 34.
It is possible to rotate and move in the range of 360 ° to find an appropriate suction position.

Thus, after the positioning and fixing of the frame structures 6a and 6b of the peeling device 6, the gun unit 11 is moved along the vertical guide beam 7 and the horizontal guide beam 8 as shown in FIG.
As described above, the peeling work for the work unit section is performed by moving the work unit section in the vertical and horizontal directions.

As described in detail in conjunction with the above embodiments, according to the building exterior coating film automatic peeling machine according to the present invention, a dangerous high place of the coating film peeling of the building outer wall surface 2a. Machines that are automatically controlled remotely from the ground perform unattended work instead of workers, so there is no need to assemble scaffolds, etc., and one operator operating the machine from the ground saves labor and labor. Safe and highly efficient stripping work can be performed, and the construction period can be shortened.

Moreover, since it is a mechanized construction, a uniform peeling surface can be obtained, which contributes to stabilizing the construction quality, and since there is no peeling residue or scattering of drainage, it is possible to proceed with related construction in the surrounding area without any trouble. The process digestion procedure contributes to shortening the construction period.

[Brief description of drawings]

1 and 2 are a vertical sectional view and a front view showing a state of use of the building exterior coating film automatic peeling machine according to the present invention, and FIG. 3 is an enlarged detailed view of an IV portion in FIG. FIGS. A and B are explanatory views showing a moving state of the gun unit. 2 …… Building, 2a …… Outer wall, 11 …… Gun unit 7 …… Vertical guide beam, 8 …… Horizontal guide beam 12 …… Horizontal moving platform, 6a …… Vertical frame, 6b …… Horizontal frame 6 …… Stripping device, 1 ... Electric monorail, 5 ... Lifting winch, 19 ... High pressure pump, 25 ... Gun cover, 17 ... Water jet firing gun, 26 ... Wall distance detection sensor, 14 ... Vertical feed screw shaft, 15 ... … Vertical transfer table 36 …… Sucker

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tatsuro Nakamura 8-21 Ginza, Chuo-ku, Tokyo Stock company Takenaka Corporation Tokyo Main Store (72) Inventor Tadashi Hayakawa 8-21 Ginza, Chuo-ku, Tokyo No. 1 Stock Company Takenaka Corporation Tokyo Main Store (72) Inventor Hiromichi Yamada 8-21-1, Ginza Chuo-ku, Tokyo Stock Company Takenaka Corporation Tokyo Main Store (72) Inventor Tadaharu Hagiwara Minamisuna, Koto-ku, Tokyo 2-5-14, Takenaka Corp. Technical Research Institute (72) Inventor Hideo Sato 2-5-14, Minamisuna, Koto-ku, Tokyo Incorporated Takenaka Corp. Technical Research Institute (72) Inventor Haruo Hoshino Tokyo 2-5-14 Minamisuna, Koto-ku, Tokyo Stockholder Takenaka Corporation Technical Research Institute (72) Inventor Satoru Osawa 2-5-14 Minamisuna, Koto-ku, Tokyo Takenaka Corporation (72) Inventor Yu Kato, 2-5-14, Minamisuna, Koto-ku, Tokyo Inside the Takenaka Corporation Technical Research Institute (72) Inventor, Hiroshi Fujita 2-237, Negafu, Ome-shi, Tokyo 451 (72) Nobuo Nakano Inventor Nobuo Nakano 305, 2-30 Sarue, Koto-ku, Tokyo

Claims (1)

[Claims] 1. A gun unit (11) arranged to face an outer wall surface (2a) of a building (2), and moving the gun unit (11) horizontally and vertically with a predetermined stroke. A gun moving mechanism, and a peeling device (6) having a frame structure for temporarily positioning and fixing the gun unit (11) and the gun moving mechanism for each work unit section on the outer wall surface (2a) of the building (2); B) The peeling device (6) is installed on the outer wall surface (2a) of the building (2).
A bodywork device movably supported in a horizontal direction and a vertical direction along the c), and c) energy required to operate the peeling device (6) is supplied from the ground or is removed from the peeling device (6). The gun unit (11) in the stripping device (6) in (a) above consists of a bowl-shaped gun cover (25) that closes the gun ( 17), a wall distance detection sensor (26) and a part for collecting debris are installed on the gun cover (25), and the gun unit (11) is brought close to the wall based on the detection signal of the sensor. Or, the frame structure in the peeling device (6) of the above-mentioned a) is to be sucked and fixed to the wall surface (2a) at least at its four corner positions, or the suction mechanism can be released. Has (36) Automatic peeling machine for exterior coatings of buildings, characterized by: