JPH08158649A - Cleaning and scraping device - Google Patents

Abstract

PURPOSE: To facilitate cleaning and scraping operations, and make the operations efficient by letting a guide mast be tilted in parallel with an objective surface for cleaning and scraping, and letting a brush body to be pressed onto the objective surface be moved while being drivingly rotated along the guide mast. CONSTITUTION: A brush drive section D is moved to the most lowest section of a guide mast 11, a folk lift A is advanced, and a rotating brush 21 is then pressed against the cleaning and scraping surface KTa of a form KT. Subsequently the rotating brush 21 is rotated under a resiliently pressed condition, and concrete residue adhered onto the scraping surface KTa is cleaned while the brush drive section D is being moved along the guide mast 11. The residue is absorbed so as to be removed by the water and the dust collecting filter of a dust collecting box 51 through a suction port 44a. In this case, when a folk lift main body Aa is advanced in a slightly inclined attitude against the scraping surface KTa, the rotating brush 21 is rotated around a brush support axis 32. Movement is made until the rotating brush 21 becomes parallel with the cleaning and scraping surface KTa while one shock absorbing damper 38 is being compressed, and cleaning and scraping operations are excellently carried out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning squeegeeing device for cleaning and squeezing a formwork used for constructing a concrete wall or a concrete wall surface of the formwork in a civil engineering work site such as a dam.

[0002]

2. Description of the Related Art Conventionally, for example, when constructing a concrete skeleton in a dam construction, a required space is surrounded by a plurality of molds and concrete is poured therein. Then, after the concrete is solidified, the operations of sliding the formwork from the lower side to the upper side and further placing the concrete therein are repeated to form the concrete skeleton.

However, since the residue of concrete adheres to the surface of the formwork once used for placing concrete, it cannot be used for the next concrete placing as it is.

Therefore, a wire brush having a diameter of about 100 mm is attached to a handy type disc grinder, and an operator pushes the wire brush against a formwork to remove the residue of concrete adhered thereto.

[0005]

By the way, the formwork used in the dam construction is large in size, and it is slid upward from the bottom along the side wall of the concrete skeleton to be reused, so that it is erected. It is held in a posture or in a slightly inclined posture.

Therefore, in order to clean and clean the upper part of the formwork held in such a standing posture as described above, hold the handy type disk grinder with both hands and further raise both arms upward. It is difficult to perform the work for a long time because the work needs to be performed and it is physically painful.

Further, when the work is performed with the disc grinder being lifted above the body, dust of the generated concrete residue falls on the face and body of the worker, and the working environment becomes poor.

Moreover, a scaffold is required to clean and clean the upper part, which is out of reach of workers.
It is dangerous to carry out cleaning and cleaning work in an unstable position on a scaffold.

Further, in order to clean and clean the lower part of the form frame held in the standing posture, it is necessary to hold the disc grinder with both hands and perform the work in a bent or crouched posture. In that case, it is difficult to carry out the work for a long time because of physical pain. Moreover, cleaning / cleaning work using a handy type disk grinder had low cleaning / cleaning ability per unit time.

Therefore, the present invention is intended to provide a cleaning squeegeeing device which can easily perform cleaning and scavenging work of a mold or a wall surface in a short time and prevent scattering of concrete residue or the like to the surroundings. is there.

[0011]

A guide mast 11 tiltably mounted on the front side of a self-propelled device A, and a tilting means CL1 for tilting the guide mast parallel to the cleaning and cleaning target surface KTa are provided.
A brush drive unit D that is movably supported along the guide mast 11 and that rotationally drives a brush body 21 that performs cleaning and cleaning of the target surface KTa for cleaning and cleaning.
It has a moving means CL2 for moving the brush driving section D along the guide mast 11.

Further, in the case where a support mast 1 which is extendable and contractible in a substantially vertical direction is mounted on the front side of the self-propelled device A,
The guide mast 11 may be tiltably supported around the upper end of the support mast 1.

Further, it is preferable to mount a recovery device C for sucking and recovering the concrete residue scraped off from the cleaning and cleaning target surface KTa. Also, the brush body 2
Reference numeral 1 is a cylindrical shape that rotates in a direction intersecting with the cleaning and cleaning target surface KTa, and the brush driving unit D is a brush body 21.
It is preferable to have a moving mechanism F for horizontally moving.

[0014]

The guide mast is tilted by the tilting means so as to be parallel to the cleaning and cleaning target surface, and the brush body is pressed against the surface. Then, when the brush body is moved along the guide mast while being rotationally driven, the movement and the cleaning target surface can be cleaned.

[0015]

Embodiments of the present invention will be described with reference to the drawings. A is a forklift as a self-propelled device. This forklift A is for traveling with a worker mounted thereon, and has the cleaning / cleaning device B of the present invention mounted on the front side of the main body Aa thereof, and the recovery device C mounted on the rear side thereof.

In the forklift A, a support mast 1 is tiltably erected on a front side of a main body Aa of the forklift A, and a cleaning cleaning device B of the present invention is attached thereto. Also,
2 is a driver's seat provided on the upper part of the main body Aa, and 3 and 4 are running wheels.

The cleaning skeletal cleaning apparatus B of the present invention has the following structure. The support mast 1 is supported on the lower end of the front side of the main body Aa so as to be tiltable in the front-rear direction, and a pair of outer rails 5, 5 (one of which is not shown) tilted by a tilting cylinder (not shown). Inner rails 6 and 6 (one of which is not shown) movably supported along the inner sides of outer rails 5 and 5, and hydraulic cylinders (not shown) that move these inner rails 6 and 6. The inner rails 6 and 6 are extended from the position (a) stored inside the outer rails 5 and 5 by the hydraulic cylinders to the extended position (b) indicated by a chain double-dashed line.
It can be freely extended toward.

Reference numerals 7 to 10 denote winding drums for hydraulic hoses such as hydraulic cylinders CL1 and CL1 as tilting means, which will be described later, attached to the support mast 1, and 6b and 6b fixed to intermediate portions of the inner rails 6 and 6. Cylinder mounting pieces (Fig. 2), these are hydraulic cylinders CL1, CL
One body portion CLa, CLa is pivotally supported.

Reference numeral 11 denotes a guide mast, which is an outer mast 12 and an inner mast 1 which is supported by the outer mast 12 and extends upward along the outer mast 12.
3 (FIGS. 1 to 3).

The outer mast 12 is the inner rail 1
2a and 12a and connecting members 14 to 17 (FIG. 3) that fix them in parallel with each other, and to the pin 6a arranged at the upper end portion of the inner rails 6 and 6 of the support mast 1,
The connecting member 14 arranged at the uppermost stage is pivotally supported. The outer rails 12a, 12a are U-shaped in cross section, and the openings 12b, 12b thereof are connected so as to face each other.

Inner rails 13a, 13 facing the outer rails 12a, 12a are provided at the upper ends of the inner side walls of the outer rails 12a, 12a.
Guide rollers GR1 and GR1 that abut on the flange portions 13c and 13c of a and roll, and guide rollers GR2 and GR2 that abut the outer surfaces of the inner rails 13a and 13a are rotatably attached (FIG. 4).

The inner mast 13 is the outer rail 1
Inner rail 1 arranged along the inside of 2a, 12a
3a, 13a and connecting members 18, 19 for connecting these
Consists of The inner rails 13a, 13a are U-shaped in cross section, and the openings 13b, 13b are connected to face each other.

Collar portions 13c, 13c are formed on the outer surfaces of the inner rails 13a, 13a along their rear edges, and their lower ends roll inside the outer rails 12a, 12a facing each other. Moving guide roller GR
3, GR3 is rotatably attached.

A hydraulic cylinder CL2 is mounted between the outer mast 12 and the inner mast 13 as a moving means for moving a brush drive portion D, which will be described later, along the guide mast 11, and its drive rod CL2.
The inner mast 13 moves with respect to the outer mast 12 with the expansion and contraction of a.

Mounting pieces 12c and 12c are formed on the connecting member 16 of the outer mast 12, and they are
Drive rod CL for the hydraulic cylinders CL1, CL1 described above
b and CLb are pin-connected. Those drive rods C
With the expansion and contraction of Lb and CLb, the outer mast 12 tilts between the standing posture (c) indicated by the chain double-dashed line and the inclined posture (d) indicated by the solid line (FIG. 1).

Reference numeral D denotes a brush drive unit, which comprises a movable support mechanism E that supports the rotary brush 21 as a brush body, and a moving mechanism F that moves the movable support mechanism E in the left-right direction.

The moving mechanism F is a rectangular frame-shaped lift bracket 20 movably attached to the front side of the inner mast 13, and side plates 23 and 23 fixed to the left and right side portions of the front surface of the lift bracket 20. These side plates 23, 2
Slide screw 24 and -96 guide 2 horizontally mounted between the two
5, 26 and the hydraulic motor M1 attached to one of the left and right side plates 23, 23 (FIG. 5).

On the rear side of the lift bracket 20, a guide roller G rolling inside the inner rails 13a, 13a.
Attachment pieces 20a, 2 with R4 and GR4 attached to the tip
0a is provided so as to project (FIG. 4). Further, on the rear surface of the lift bracket 20, the inner rails 13a, 13
The guide rollers GR5 and GR5 which come into contact with the outer surface end of a are attached, and the one attachment piece 20a is further provided with
Guide roller G that contacts the end surface of the inner rail 13a
R6 is attached.

One end of the roller chain 27a is attached to the tip of one of the attachment pieces 20a, 20a. The roller chain 27a has a sprocket 27 whose middle part is arranged at the upper end of the inner mast 13.
The other end is attached to a part of the outer mast 12 via. That is, the brush drive unit D moves along with the vertical movement of the inner mast 13 and the inner rail 13
a, 13a.

Sprockets 28 and 29 are fixed to the drive shaft M1a of the hydraulic motor M1 and the slide screw 24, and a roller chain 30 is stretched between them. Therefore, the slide screw 24 is rotated by driving the hydraulic motor M1, and the movable support mechanism F moves along the slide guides 25 and 26.

The movable support mechanism F comprises a movable support member 31 and a brush support portion 33 supported by the movable support member 31 via a brush support shaft 32.

The movable support 31 has a support member 34 which moves along the slide guides 25 and 26 by the rotation of the slide screw 24. This support member 34 has a side surface L
The upright leg 34a is formed in a letter shape, and a fitting insertion hole 34b into which the slide guide 25 is slidably inserted is formed at the upper end of the upright leg 34a.

A slide screw 2 is provided on the rear surface of the standing leg portion 34a.
A slide block 35 that is screwed into 4 is fixed, and a slide block 36 that is inserted into the slide guide 26 is inserted in the lower portion.
Has been fixed. In addition, the slide block 36,
The body portions 37a and 38a of the buffer dampers 37 and 38 are pin-connected.

A rotary joint 39 is fixed to the upper portion of the front surface of the standing leg portion 34a so as to rotatably support the upper end portion of the brush support shaft 32 about its axis. A brush support 33 is attached to the lower end of the brush support shaft 32.

A base end portion of a coil spring 40 for elastically pressing the brush support shaft 32 forward is fixed to a lower portion of the front surface of the standing leg portion 34a, and a fitting portion 41 for fitting the brush support shaft 32 is attached to a tip end portion thereof. Is provided. The horizontal leg portion 34c of the support member 34 has an elongated hole 34 into which the brush support shaft 32 is loosely inserted.
d is provided.

The brush supporting portion 33 includes a connecting member 41 having the lower end portion of the brush supporting shaft 32 fixed to the center of the rear surface thereof, and a support frame 43 having a U-shaped flat surface formed by fixing side plates 42 and 42 at both end portions thereof and both sides thereof. A cylindrical rotating brush 21 rotatably supported between the plates 42 and 42, and a support frame 43.
One side is fixed to the upper surface of the connecting member 41 and the other side is curved and formed so as to cover the upper side of the rotating brush 21.
And a hydraulic motor M fixed to the rear surface of one end of the connecting member 41.
2 and (Figs. 4 and 5).

Sprockets 45 and 46 are fixed to the rotary shaft M2a of the hydraulic motor M2 and the shaft 21a of the rotary brush 21, and a roller chain 47 is stretched around them. In addition, a weight W for adjusting the left-right balance about the brush support shaft 32 is provided on the other end side of the connecting member 41.
T is fixed.

On the back surface of the connecting member 41 and on both sides of the brush support shaft 32, rods 37 of buffer dampers 37 and 38 are provided.
a and 38b are pin-connected. This gas damper 3
7 and 38 hold the brush support portion 33 so that it is always facing forward. However, when a force that tilts the brush support shaft 32 as a center acts on the brush support portion 33,
A pressing force is generated in the direction of returning the brush supporting portion 33 to the original posture in opposition to the force.

The dust-collecting cover 44 is provided with two suction ports 44a, 44a for sucking the residue and dust of the concrete scraped off by the rotary brush 21, to which one end of the suction ducts 48, 48 is attached. Has been.

The other ends of the suction ducts 48, 48 are connected to a blower 49 fixed to the rear part of the main body Aa of the forklift, and a dust collecting box 51 is connected to the exhaust side of the blower 49 via an exhaust duct 50. This dust collection box 5
Water is stored inside 1, and the exhaust end of the exhaust duct 50 is arranged in the water. Further, an exhaust port (not shown) is formed in the dust collecting box 51, and a dust collecting filter (not shown) is attached to this.

When the blower 49 is driven, the rotating brush 21
By the cleaning of the form KT and the concrete residue scraped off from the cleaning surface KTa by the suction ports 44a, 44a are sucked, and these are sucked by the suction duct 48 and the exhaust duct 5.
It is guided to the dust collection box 51 through 0 and is adsorbed by the water stored therein. Further, dust and the like not adsorbed on water is removed by the dust collecting filter.

Next, the operation of this apparatus will be described. First, the mold KT for cleaning and cleaning is supported in a posture inclined at a predetermined angle as shown in FIG.

With the brush drive D moved to the lowermost part of the guide mast 11, the forklift A is moved forward,
The rotating brush 21 is cleaned on the mold KT and pressed against the cleaning surface KTa.

When the rotary brush 21 is cleaned and pressed against the mold surface KT and the cleaning surface KTa, the brush support shaft 32 moves rearward according to the pressing, and the coil spring 40 is compressed. In accordance with this compression, the rotary brush 21 cleans the mold KT and is elastically pressed against the cleaning surface KTa.

The rotary brush 21 is rotationally driven under the elastic pressure, and the brush drive section D is moved along the guide mast 11. During this movement, the cleaning of the mold KT and the cleaning surface KT
The residue of concrete adhered to a is the rotating brush 2
It is scraped off by being scraped off by 1.

Further, the scraped off concrete residue is sucked from the suction ports 44a, 44a and collected in the dust collecting box 51, and is adsorbed and removed by the water in the dust collecting box 51 and the dust collecting filter.

In this way, while the rotary brush 21 is moved along the guide mast 11, the mold KT is cleaned and the cleaning surface KTa is cleaned / cleaned.

In order to move the rotary brush 21 in the width direction of the mold KT, the moving mechanism F moves the movable mechanism E horizontally. Then, while rotating the rotary brush 21, the brush drive section D is moved along the guide mast 11. By this movement, the moving area of the rotary brush 21, that is, the area having a width equal to or larger than the width of the forklift A can be cleaned and cleaned without cutting the main body Aa of the forklift A.

Thereafter, the main body Aa of the forklift A is turned back, and the rotary brush 21 is further moved leftward or rightward to perform the cleaning / cleaning work similar to the above.

By the way, when the main body Aa of the forklift A is facing the cleaning of the mold KT and the cleaning surface KTa in a slightly inclined posture, the forklift A in this posture is used.
When is moved forward, only one end of the front surface of the rotating brush 21 comes into contact with the mold KT (FIG. 7).

After the contact, when the forklift A is further advanced, the rotating brush 21 rotates about the brush support shaft 32 along with the forward movement, and the buffer damper 38 on one side is rotated.
While compressing, the rotating brush 21 is moved until the mold KT is cleaned and becomes parallel to the cleaning surface KTa. Therefore, even when the forklift A faces the mold KT in a slightly inclined state, the cleaning / cleaning work can be favorably performed.

The present invention is not limited to the above-mentioned embodiments, but various modifications can be made within the scope of the invention. The brush driving unit D includes a cylindrical rotating brush 21.
The structure of rotating the mold KT in a direction intersecting with the cleaning surface KT and the cleaning surface KTa has been described.
It may be a disk-shaped brush that rotates parallel to a. Moreover, the number may be two or more.

In the above-mentioned embodiment, the case of cleaning the mold KT and cleaning / cleaning the residue of the concrete adhered to the cleaning surface KTa has been described as an example, but the surface of a concrete wall or the like can be cleaned / cleaned.

Further, the guide mast may be mounted directly on the front side of the main body of the forklift without the support mast standing on the front side of the main body.

[0055]

According to the invention described in claims 1 to 4, the brush body is pressed against the surface to be cleaned and cleaned, and is moved along the guide mast while rotating the brush body. It is possible to easily perform cleaning and cleaning work such as in a short time.

According to the second aspect of the invention, since the guide mast is supported by the support mast, the tilting means and
By adjusting the height of the support mast, the inclination angle of the guide mast can be easily adjusted.

According to the invention of claim 3, in addition to the above effects, since the concrete residue and the like scraped off by the brush body is collected by the collecting device, it is possible to prevent the scattering of the residue around them and the work environment. Can be improved.

According to the fourth aspect of the present invention, in addition to the above effects, since the brush body has a columnar shape, it is possible to perform cleaning and cleaning of a large area at a time simply by moving the brush body along the guide mast.

According to the fifth aspect of the present invention, since the brush body can be moved to the left and right, the left and right regions where the brush body is in contact can be cleaned and cleaned without moving the self-propelled device. The work can be done in a short time.

Further, by making the brush body movable to the left and right in this way, even if there is only a limited space such that the main body cannot be moved freely, every corner of the formwork Easy to clean and clean.

[Brief description of drawings]

FIG. 1 is a side view showing an entire self-propelled device equipped with a cleaning cleaning device of the present invention.

FIG. 2 is a front view thereof.

FIG. 3 is an exploded perspective view of a guide mast.

FIG. 4 is a partial plan sectional view in which a lift bracket is attached to the guide mast.

FIG. 5 is a partially enlarged view showing a partial detail of the cleaning skeletal device of the present invention.

FIG. 6 is a partial plan view showing the lower structure thereof.

FIG. 7 is a plan view showing a state in which a rotating brush is pressed obliquely against a mold.

[Explanation of symbols]

 1 Support Mast 11 Guide Mast 21 Brush Body (Rotating Brush) A Self-propelled Device (Forklift) C Recovery Device CL1 Tilt Means (Hydraulic Cylinder) D Brush Drive Part F Moving Mechanism KTa Cleaning and Keren Target Surface CL2 Moving Means (Hydraulic Cylinder)

Front page continued (72) Inventor Eisuke Numaguchi 2 Sanbancho, Chiyoda-ku, Tokyo, Tobishima Construction Co., Ltd. (72) Inventor Yu Nakazawa 2 Sanbancho, Chiyoda-ku, Tokyo, Tobishima Construction Co., Ltd. (72 ) Inventor Toshio Hasino 2 Sanbancho, Chiyoda-ku, Tokyo Tobishima Construction Co., Ltd.

Claims (5)

[Claims] 1. A guide mast mounted on the front side of a self-propelled device so as to be tiltable, tilting means for tilting the guide mast parallel to the cleaning and cleaning target surface, and movably supported along the guide mast. A cleaning and cleaning device, comprising: a brush driving unit that rotationally drives a brush body that cleans and cleans a target surface, and a moving unit that moves the brush driving unit along a guide mast. 2. A support mast that is extendable and contractible in a substantially vertical direction is mounted on the front side of the self-propelled device, and the guide mast is supported so as to be tiltable about an upper end portion of the support mast. Item 10. The cleaning scraper device according to Item 1. 3. The cleaning and cleaning device according to claim 1, further comprising a recovery device for sucking and recovering the concrete residue scraped off from the cleaning and cleaning target surface. 4. The brush body is a cylindrical brush that rotates in a direction intersecting the cleaning and cleaning surface.
Cleaning cleaning device according to 2 or 3. 5. The cleaning cleaning device according to claim 1, wherein the brush driving unit includes a moving mechanism that horizontally moves the brush body.