JPH07144176A - Deposit removing means for coated surface - Google Patents

Abstract

PURPOSE:To provide a deposit removing means which averts the projecting part of a coated surface and prevents the damage of this surface by inclining a removing blade member for removing the deposits on the coated surface backward in the rotating direction of a revolving shaft by overcoming the energizing force of energizing means when this removing blade member collides against the projecting parts of the coated surface. CONSTITUTION:The front end of the revolving shaft revolving in a specified direction (a) is provided with a rotary disk 16 via an expansion part and is provided with the first energizing means for energizing this expansion part to the coated surface side. This rotary disk 16 is provided with the removing blade member 19 which is supported freely turnably along the axial center along the radial direction of the revolving shaft and removes the deposits 27 of the coated surface 3 at the front end. The prescribed position at the front end of the removing blade member 19 is provided with a guide plate 20 having an arc-shaped curved surface 21 in contact with the coated surface 3. The deposit removing means is provided with the second energizing means 23 for turning and energizing the removing blade member 19 forward in the rotating direction (a) of the revolving shaft and a stopper 24 for regulating the position of the removing blade member 19 in the posture perpendicular to the coated surface 3 or inclined backward in the rotating direction (a) by overcoming the energizing force of the second energizing means 23.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remover for removing deposits such as shellfish (barnacles and oysters) attached to the coated surface of a structure constructed in the sea or near the water.

[0002]

2. Description of the Related Art Conventionally, in a removal tool having a metal removal blade member, when removing deposits such as shellfish attached to the coated surface, the coating film peels off when the tip of the removal blade member is applied to the coated surface. Therefore, a few mm between the tip of the removal blade member and the painted surface
It formed a gap. Then, the removal blade member is moved along the coated surface to remove shells and the like from the coated surface at the tip of the removal blade member.

[0003]

However, in the above-mentioned conventional type, when the coating surface has a step of a seam or a protrusion such as a weld overlay or a protrusion, the tip of the removing blade member is There was a problem that it collided with the protrusion and was damaged.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a tool for removing deposits on a coated surface, which has a removal blade member capable of avoiding a convex portion existing on the coated surface. is there.

[0005]

In order to solve the above problems, the tool for removing deposits on a coated surface according to the first aspect of the present invention is a tool provided at the tip of a rotary shaft that vertically opposes the coated surface. A rotary disk is provided at the tip of the rotary shaft that rotates in a fixed direction via an expandable portion, and a first biasing unit that biases the expandable portion toward the coating surface side is provided. A removing blade member that is rotatably supported around an axis along the radial direction and that removes adhered matter on the coating surface at the tip is provided, and an arcuate curved surface that contacts the coating surface at a predetermined position of the tip of the removing blade member. And a second urging means for urging the removal blade member forward in the rotation direction of the rotary shaft.
A stopper is provided to regulate the position of the removing blade member against the biasing force of the biasing means in a posture in which the removing blade member is tilted perpendicularly to the coating surface or backward in the rotational direction.

The tool for removing deposits on a coated surface according to the second aspect of the present invention is a tool provided at the tip of a rotary shaft that vertically opposes the painted surface, the tip of the rotary shaft rotating in a fixed direction. A rotary disk is provided on the rotary disk, and a removal blade member is provided on the rotary disk along the radial direction of the rotary shaft.
An auxiliary plate rotatably supported around an axis extending along the radial direction of the rotary shaft, a blade body rotatably connected to the auxiliary plate and removing a deposit on the coated surface at its tip, and an auxiliary First urging means for urging the plate to rotate forward of the rotation axis in the rotation direction;
A first stopper for restricting the position of the auxiliary plate in an inclined posture against the urging force of the first urging device; and a second urging device for rotationally urging the blade body in the opening direction with respect to the auxiliary plate. And an arcuate curved surface that is in contact with the coating surface at the tip of the blade body, and is constituted by a second stopper that positions the auxiliary plate and the blade body in a V shape against the biasing force of the second biasing means. It is provided with a guide plate having.

[0007]

According to the structure of the first aspect of the invention, when the rotary shaft rotates in the fixed direction, the rotary disk also rotates in the fixed direction, and the tip of the removing blade member moves along the coating surface to remove the deposits. To go. At this time, there is a convex portion such as a seam step or a weld overlay or a protrusion on the coated surface, and when the removing blade member collides with such a convex portion, the removing blade member is
The rotary shaft is inclined rearward in the rotation direction against the biasing force of the second biasing means. In this way, since the removal blade member is inclined rearward in the rotation direction of the rotary shaft, the convex portion can be released rearward, so that the removal blade member can be prevented from being damaged. After the convex portion is released to the rear, the removing blade member is urged to rotate forward by the urging force of the second urging means in the rotational direction of the rotating shaft, and abuts on the stopper to return to the original posture.

Further, when the guide plate rides on the convex portion of the painted surface, the expanding and contracting portion shortens against the urging force of the first urging means, so that the guide plate can smoothly pass over the convex portion. . This can prevent the removal blade member from being damaged.

According to the structure of the second aspect of the invention, when the rotary shaft rotates in a fixed direction, the rotary disk also rotates in a fixed direction, and the tip of the blade moves along the coating surface to remove the deposits. Go. At this time, when there is a stepped portion of the seam or a convex portion such as a weld overlay or a protrusion on the coated surface and the blade body collides with such a convex portion, the auxiliary plate causes the urging force of the first urging means. It rotates backward in the direction of rotation of the rotary shaft against. In this way, by rotating the auxiliary plate rearward in the rotational direction of the rotary shaft, the convex portion can be released rearward of the removal blade member, so that damage to the blade body can be prevented. After the convex portion is released to the rear, the auxiliary plate is urged by the urging force of the first urging means to the front in the rotational direction of the rotating shaft to come into contact with the stopper, whereby the removal blade member returns to the original posture. .

When the guide plate rides on the convex portion of the coated surface, the blade body rotates in the closing direction with respect to the auxiliary plate against the urging force of the second urging means, so that the guide plate is convex. You can get over the club smoothly. This can prevent damage to the blade body.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the first invention will be described below with reference to FIGS. As shown in FIGS. 1 and 2, reference numeral 1 denotes an underwater robot that is movable along the surface of the structure 2 for cleaning the structure 2 constructed in the sea. A rotary shaft 4 which is vertically opposed to the coated surface 3 of the structure 2 and is rotatable in a fixed direction is provided so as to be retractable. At the tip of the rotary shaft 4, the coated surface 3
A removing tool 6 for removing the attached matter 5 such as shellfish attached to the is provided.

That is, an extendable shaft 8 (an example of an extendable portion) that is extendable and retractable with respect to the painted surface 3 is connected to the tip end portion of the rotary shaft 4 via a pair of flanges 7. The extendable shaft 8 is formed of an inner shaft 8a and an outer shaft 8b that is fitted onto the tip of the inner shaft 8a and is movable in the axial direction. The inner shaft 8a and the outer shaft 8b are connected by a slide key 10. The outer shaft 8b is prevented from coming off from the inner shaft 8a by a fitting ring-shaped stopper 11 attached to the tip of the inner shaft 8a. Also, the inner shaft 8a is
Coil spring 12 for urging the outer shaft 8b toward the coated surface 3 side
(One example of the first urging means) is externally fitted. The coil spring 12 is compressed and attached between one end surface of the outer shaft 8b and a ring-shaped spring retainer 13 attached to the inner shaft 8a.

A disk-shaped rotary disk 16 is attached to the other end surface of the outer shaft 8b. This turntable 16 has a hinge 17
The support shaft 18 that constitutes the
It is provided radially every 0 °. A comb-shaped removing blade member 19 for removing the attached matter 5 (shellfish, etc.) on the coated surface 3 at the tip thereof is rotatably supported around the axis of the support shaft 18 on the support shafts 18. A plurality of guide plates 20 are attached to the tip of each removal blade member 19 at substantially predetermined intervals.
As shown in FIG. 3, each of the guide plates 20 has an arcuate curved surface 21 in contact with the coating surface 3, and its projecting end projects forward in the rotational direction B of the rotary shaft 4. The arcuate curved surface of the guide plate 20
A guide plate is formed so that a slight gap 22 is formed between the tip of the removing blade member 19 and the painted surface 3 in a state where the 21 is in contact with the painted surface 3.
20 is attached to the removing blade member 19.

A spring 23 (an example of second urging means) for urging the removal blade member 19 to rotate forward in the rotational direction B is externally fitted to each support shaft 18. In addition, a stopper 24 is mounted on the turntable 16 to regulate the position of the removal blade member 19 in a posture perpendicular to the coating surface 3 against the biasing force of these springs 23. These stoppers 24 are located in front of the removal blade member 19 in the rotation direction B, and the position of the removal blade member 19 is regulated by contacting the stopper 24.

The operation of the above structure will be described below.
The underwater robot 1 is moved to bring the guide plate 20 into contact with the painted surface 3 as shown in FIG. Then, by rotating the rotary shaft 4 in the constant rotation direction a, the telescopic shaft 8 and the rotary disk are rotated.
16 and 16 rotate in the rotation direction a together. As a result, the tip of the removal blade member 19 moves along the coated surface 3 to remove the attached matter 5 such as shellfish. At this time, the curved surface of the guide plate 20
Since 21 moves in contact with the painted surface 3, a gap 22 is always formed between the removing blade member 19 and the painted surface 3. Therefore, it is possible to remove the deposit 5 at the tip of the removal blade member 19 without peeling off the coating film on the coating surface 3.

Even if the coated surface 3 is a curved surface with undulations, the expansion / contraction shaft 8 expands and contracts in the axial direction according to the undulations, so that the guide plate 20 is reliably coated along the undulations of the coated surface 3. Surface 3
Touch. Therefore, the deposit 5 on the coated surface 3 can be reliably removed by the tip of the removal blade member 19.

As shown in FIG. 4, when a step 27 of a seam, a weld overlay or a protrusion 27 is present on the coated surface 3 and the removal blade member 19 collides with such a protrusion 27,
The removal blade member 19 resists the biasing force of the spring 23 and inclines rearward in the rotational direction a. In this way, since the removing blade member 19 is inclined, the convex portion 27 can be released backward,
The removal blade member 19 can be prevented from being damaged. After letting the convex portion 27 escape backward, the removing blade member 19 is urged to rotate forward in the rotational direction B by the urging force of the spring 23 and abuts the stopper 24 as shown in FIG. Return to.

When the guide plate 20 rides on the convex portion 27 as shown by the solid line in FIG. 5, the outer shaft 8b is opposed to the inner shaft 8a.
As the telescopic shaft 8 is shortened in the axial direction by moving to the side of the underwater robot 1, the guide plate 20 can smoothly get over the convex portion 27. Therefore, the removal blade member 19 can be prevented from being damaged.

In the above embodiment, the position of the removing blade member 19 is regulated by the stopper 24 in a posture perpendicular to the coating surface 3 as shown by the solid line in FIG. 3, but as shown by the phantom line in FIG. Therefore, the position of the removing blade member 19 may be regulated in a posture inclined rearward in the rotational direction B.

An embodiment of the second invention will be described below with reference to FIGS. As shown in FIG. 6 to FIG.
A turntable 40 is provided at the tip of the. This turntable 40
Is four arms that extend radially around the rotation axis 4.
Has 41. Each arm 41 has a pair of brackets 42
And a plurality of hinges 44 configured by a support shaft 43 provided between both brackets 42. A plurality of removal blade members 45 are attached via the support shafts 43 of the hinges 44. The removal blade members 45 are attached at substantially predetermined intervals, and the attachment positions of the arms 41 are displaced so as to fill the gaps between the adjacent removal blade members 45.

Each removal blade member 45 is composed of an auxiliary plate 46 rotatably provided on the support shaft 43 and a blade body 48 rotatably connected to the auxiliary plate 46 via a hinge 47. It is formed in a V shape that can be opened and closed. The auxiliary plate 46, the support shaft 43
A first spring 49 (an example of a first urging unit) provided on the rotatively urging member urges the rotating shaft 4 forward in the rotational direction B. Further, the bracket 42 is provided with a first stopper 50 that positions the auxiliary plate 46 in an inclined posture against the biasing force of the first spring 49. The hinge 47 has a blade 48
Second spring 51 for urging the auxiliary plate 46 to rotate in the opening direction
(An example of second urging means) and second for restricting the auxiliary plate 46 and the blade body 48 in a V shape against the urging force of the second spring 51.
A stopper 52 is provided. Further, guide plates 54 having arcuate curved surfaces 53 in contact with the painted surface 3 are provided at both ends of each blade 48. In addition, with the arc-shaped curved surface 53 of the guide plate 54 in contact with the painted surface 3, the tip of the blade 48 and the painted surface 3
The guide plate 54 is attached to the blade body 48 so that a slight gap 55 is formed between the guide plate 54 and the blade body.

The operation of the above structure will be described below.
By rotating the rotary shaft 4 in the constant rotation direction a, as shown in FIG. 8, the turntable 40 rotates in the rotation direction a, whereby the tip of the blade body 48 moves along the painted surface 3. The deposit 5 such as shellfish is removed. At this time, since the arcuate curved surface 53 of the guide plate 54 moves in contact with the painted surface 3, a gap 55 is always formed between the blade 48 and the painted surface 3. Therefore, the blade body can be formed without peeling off the coating film on the coated surface 3.
It is possible to remove the deposit 5 at the tip of 48.

Even if the coating surface 3 is a curved surface having undulations, the blade body 48 rotates in the opening / closing direction according to the undulations, so that the guide plate 54 is surely coated along the undulations of the coating surface 3. Surface 3
Touch. Therefore, the attached matter 5 on the coated surface 3 can be reliably removed by the tip of the blade 48.

As shown in FIG. 9, there is a protrusion 27 such as a seam step, a weld overlay or a protrusion on the coated surface 3, and when the blade 48 collides with such a protrusion 27, it is assisted. Board
46 rotates rearward in the rotation direction a against the biasing force of the first spring 49. In this way, since the convex portion 27 can be released to the rear of the removal blade member 45 by rotating the auxiliary plate 46,
It is possible to prevent the blade body 48 from being damaged. After letting the convex portion 27 escape rearward, the auxiliary plate 46 is rotationally biased forward in the rotation direction a by the biasing force of the first spring 49, and as shown in FIG.
When the 46 contacts the first stopper 50, the removal blade member
45 returns to its original position.

Further, as shown by the solid line in FIG. 10, the guide plate 54
When the vehicle rides on the convex portion 27, the blade body 48 rotates in the closing direction with respect to the auxiliary plate 46 against the biasing force of the second spring 51. As a result, the guide plate 20 can smoothly ride over the convex portion 27. Therefore, damage to the blade body 48 can be prevented. Thus, since the blade body 48 is rotatable in the opening / closing direction with respect to the auxiliary plate 46, the complete set of the turntable 16 is moved using the telescopic shaft 8 as in the above-described first embodiment of the invention. No large-scale structure is required. Further, as shown in FIG. 8, since the attached matter 5 is removed in a posture in which the blade body 48 is inclined forward with respect to the rotation direction B, the removal ability is good.

In both of the above embodiments, the guide plates 20, 54
A cushioning material may be attached to the arcuate curved surfaces 21 and 53.

[0027]

As described above, according to the first aspect of the present invention, when the rotary shaft rotates in a fixed direction, the turntable also rotates in a fixed direction, and the tip of the removing blade member moves along the coating surface. Remove the deposits. At this time, there are bumps on the coated surface such as seams and weld overlays or protrusions,
When the removal blade member collides with such a convex portion, the removal blade member tilts rearward in the rotation direction of the rotary shaft against the biasing force of the second biasing means. In this way, since the removal blade member is inclined rearward in the rotation direction of the rotary shaft, the convex portion can be released rearward, so that the removal blade member can be prevented from being damaged. After the convex portion is released to the rear, the removing blade member is urged to rotate forward by the urging force of the second urging means in the rotational direction of the rotating shaft, and abuts on the stopper to return to the original posture.

Further, when the guide plate rides on the convex portion of the coated surface, the expanding and contracting portion shortens against the urging force of the first urging means, so that the guide plate can smoothly pass over the convex portion. . Thereby, damage to the removal blade member can be prevented.

Further, according to the second aspect of the present invention, when the rotary shaft rotates in a fixed direction, the turntable also rotates in a fixed direction,
The tip of the blade moves along the painted surface to remove the deposits. At this time, if there is a stepped portion of the seam or a convex portion such as a weld overlay or a protrusion on the coated surface and the blade body collides with such a convex portion, the auxiliary plate causes the urging force of the first urging means. It rotates backward in the direction of rotation of the rotary shaft against. In this way, by rotating the auxiliary plate rearward in the rotational direction of the rotary shaft, the convex portion can be released to the rear of the removal blade member, so that damage to the blade body can be prevented. After the convex portion is released to the rear, the auxiliary plate is rotationally biased forward by the biasing force of the first biasing means in the rotational direction of the rotary shaft and comes into contact with the stopper, whereby the removal blade member returns to the original posture. .

When the guide plate rides on the convex portion of the coated surface, the blade body rotates in the closing direction with respect to the auxiliary plate against the urging force of the second urging means, so that the guide plate is convex. You can get over the club smoothly. Thereby, damage to the blade body can be prevented.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a removing tool according to an embodiment of the present invention.

FIG. 2 is a view on arrow AA in FIG.

FIG. 3 is a vertical sectional view of a removing blade member according to the embodiment of the present invention.

FIG. 4 is a view for explaining the operation of the removing blade member in the embodiment of the first invention.

FIG. 5 is a view for explaining the operation of the removing blade member in the embodiment of the first invention.

FIG. 6 is a front view of a removing tool according to an embodiment of the present invention.

FIG. 7 is a view on arrow AA in FIG.

FIG. 8 is a vertical sectional view of a removing blade member according to an embodiment of the present invention.

FIG. 9 is a view for explaining the operation of the removing blade member in the embodiment of the present second invention.

FIG. 10 is a diagram for explaining the operation of the removing blade member in the embodiment of the second invention.

[Explanation of symbols]

 3 Painted surface 4 Rotating shaft 5 Adherents 6 Removing tool 8 Expanding shaft (expanding part) 12 Coil spring (first urging means) 16 Rotating plate 19 Removal blade member 20 Guide plate 21 Arc-shaped curved surface 23 Spring (second urging) Means) 24 stopper 40 turntable 45 removal blade member 46 auxiliary plate 48 blade body 49 first spring (first urging means) 50 first stopper 51 second spring (second urging means) 52 second stopper 53 arcuate shape Curved surface 54 Guide plate b Rotation direction

Claims (2)

[Claims] 1. A removal tool provided at the tip of a rotary shaft that vertically opposes a coated surface, wherein a rotary disk is provided at the tip of the rotary shaft that rotates in a fixed direction via an expandable part, and the expandable part A first urging means for urging the coating surface side toward the coating surface side, rotatably supported on the rotating disk around an axis along the radial direction of the rotating shaft, and removing the deposits on the coating surface at the tip. A removing blade member is provided, and the tip of the removing blade member is provided at a predetermined position.
A second guide plate is provided which has an arcuate curved surface in contact with the painted surface and biases the removal blade member forward in the rotation direction of the rotary shaft.
A coating provided with an urging means and a stopper for regulating the position of the removing blade member against the urging force of the second urging means in a posture in which the removing blade member is inclined vertically to the coating surface or rearward in the rotational direction. Adhesion remover for surface. 2. A removal tool provided at the tip of a rotary shaft that vertically opposes a coated surface, wherein a rotary disk is provided at the tip of the rotary shaft that rotates in a fixed direction, and the rotary disk is attached to the rotary disk. Is provided with a removing blade member, and the removing blade member is rotatably connected to the auxiliary plate rotatably supported around an axis along the radial direction of the rotating shaft. And a blade body for removing deposits on the coated surface at the tip, a first biasing means for biasing the auxiliary plate forward in the rotation direction of the rotary shaft, and a biasing force for resisting the biasing force of the first biasing means. And a second urging means for urging the blade body to rotate in the opening direction with respect to the auxiliary plate.
A guide plate constituted by an auxiliary plate and a second stopper for restricting the position of the blade body in a V shape against the biasing force of the biasing means, and having an arc-shaped curved surface in contact with the coating surface at the tip of the blade body. A tool for removing deposits on a painted surface, characterized by being provided with.