JP2013116469A - Coating-life elongating steam washer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coating-life elongating steam washer which improves operability on work by reducing weight, facilitates the removal of contamination or the like, and can enhance a washing effect.SOLUTION: This coating-life elongating steam washer uses a light-weight metal or a resin body for reducing the weight of the coating-life steam washer 1. A grip 8 gripped by hands is arranged at one face of a box body 7 constituted of FRP. Steam from a steam generator 2 is supplied to a connecting member 9 of the box body and a connecting means 10 via a hose 5, and injected to a rotating brush 12 from a steam injection hole 10d. A flat gear 13 is rotated by a drive transmission joint 18 from a rotation force generation means 3 via a flexible wire 6, and the rotating brush 12 integrated with the flat gear is rotated. The hose 5 and the flexible wire 6 are attachable and detachable to/from the box body 7. Work for elongating a coating life can easily be applied to the surface of a construction such as a bridge by manual work by using the steam and the rotating brush 12.

Description

  The present invention relates to a steam cleaning machine for extending the life of paint films on bridges and the like built on roads, rivers, waterways and the like. More specifically, the present invention relates to a coating film life-extending steam cleaning machine for cleaning dirt on the surface of a steel beam and extending the life of the coating film.

  In snowy cold regions, anti-freezing agents such as calcium chloride are sprayed on the road to prevent the road from freezing. When this antifreezing agent is dispersed and scattered on a structure such as a bridge girder of a bridge, for example, it adheres to the coating film on the surface of the structure. The spraying of the antifreeze agent increases the adhesion performance of dirt and salt. As a result, the adhesion of the antifreezing agent to the coating film surface will deteriorate the coating material and shorten the coating life if this state is continued.

  Removing such dirt and the like at an early stage is effective in extending the life of the paint film surface of the bridge. Therefore, for the purpose of extending the life of the bridge, removal of dirt and the like is performed without damaging the paint film on the surface of the painted bridge. For this purpose, various methods have been applied. Conventionally, a method of generally washing away with water pressure such as water discharge has been applied, but it has been difficult to remove fine stains.

  For this reason, only the surface of the coating film is cleaned, and it is known that steam cleaning is performed for this purpose. In addition, it is also known that a rotary brush is used in combination with steam cleaning of a bridge. (For example, refer nonpatent literature 1 and 2.). Furthermore, although it is a washing machine mainly for machine parts, a washing machine that brushes in addition to high-temperature jet steam is known (for example, see Patent Document 1). Further, in a washing machine that targets a bridge to be cleaned, there is known a cleaning apparatus in which a rail is provided along the bridge and cleaning is performed while jetting a cleaning liquid while moving the cleaning device along the rail (for example, Patent Document 2). reference).

  In particular, since a washing machine equipped with a rotating brush is equipped with an electric motor for driving the rotating brush, it is inevitable that the weight of the washing machine will increase. On the other hand, dirt on the coating film surface to which the antifreezing agent or the like on the coating film surface is attached is stubborn and cannot be easily removed by conventional methods. For this reason, it is effective to use steam and a rotating brush together, but it is inevitable that a washing machine equipped with both functions tends to be heavy.

  Since this washing machine is generally used manually for a long time, it is desired that the washing machine has a small turn and is as light as possible. When cleaning the coating film surface of a complicated structure such as a bridge girder, it is a complicated field work by an operator such as a lateral or upward work. In such a field, even if the scaffolding is good, it is a heavy labor for the worker.

JP 2008-23510 A JP 2003-3422 A

“Proposal for prolonging the life of bridges in cold snowy regions” 685 Published in June 2010 “Development of Bridge Cleaning Technology” Monthly Bulletin No. 567 August 2010 issue

  As mentioned above, the function required for the steam cleaning machine for extending the life of coatings used especially on bridges is the one equipped with a steam cleaning function and equipped with a rotating brush, which requires good workability and light weight. Has been. The coating body to be cleaned is in an environmental state exposed to the outside by a structure such as a bridge, for example, the shape of the work target is complicated, and the work range efficiently performs cleaning. Therefore, it is limited and becomes a coating film part. For this reason, the cleaning operation is performed manually.

  Conventional cleaning has been carried out by water discharge, but recently a dedicated cleaning machine has been used. However, since the washing machine is heavy, the worker takes a long time to work and is tired. For this reason, it has been desired to develop a washing machine that can reduce the fatigue for the operator, can easily remove dirt, and can work in a short time. That is, it has been demanded to improve the working efficiency with a washing machine that is easy to handle and reduced in weight. In the above example, a washing machine capable of brushing in addition to jetting of steam is known, but is not for manual work.

  Further, this device uses a planetary speed reduction system as a drive mechanism and is not of a lightweight type, has a complicated structure and is intended for cleaning of machine parts, and is different from the object of the present invention. Furthermore, known washing machines for bridges are automatic and limited in the object to be washed, and are not suitable for washing in detail, which is also different from the object of the present invention.

The present invention has been made based on the technical background as described above, and achieves the following object.
An object of the present invention is a steam cleaning machine for extending the life of a coating film, which has a steam cleaning function and is equipped with a rotating brush to clean the surface of the coating film, and which realizes weight reduction and reduces work fatigue of the operator. Is to provide.

  Another object of the present invention is to provide a handle with a steam cleaning function and a rotating brush for cleaning the surface of the coating film to improve the operability of the work and to easily remove dirt and the like. An object of the present invention is to provide a steam cleaning machine for extending the life of paint films.

  Still another object of the present invention is to provide a steam cleaning machine having a steam cleaning function for cleaning a coating film surface and equipped with a rotating brush. An object of the present invention is to provide a steam cleaning machine for extending the life of a coating film that can be removed and has an improved cleaning effect.

The present invention takes the following means in order to achieve the object.
The steam cleaning machine for life extension of the present invention 1 includes a steam generator (2) for supplying steam with a hose (5), and a rotational power generating means for transmitting rotational power with a flexible wire (6) ( 3) A steam cleaning machine (1) for extending coating life used in a cleaning system having a casing (7) made of a lightweight metal or a resin body, and disposed on one surface of the casing (7) A handle (8) that is fixed and gripped by hand, and a hose that is fixed to the housing (7) and connected to the hose (5) for passing the steam from the steam generator (2) A connecting portion (9), a first rotating transmission body (13) rotatably supported on the other surface of the casing (7), and the first rotating transmission body (13) fixed and rotated; A rotating brush (12) for cleaning the surface of the finished structure and the front Connecting means (10) disposed at the center of the housing (7), fixed to the hose connection (9), rotatably supporting the first rotary transmission (13) and passing the steam. A second rotary transmission body (17) that is rotatably provided on the other surface side of the casing (7) and rotationally drives the first rotary transmission body (13), and the casing (7). A joint for driving transmission which is arranged on one surface and rotatably connects one end of the flexible wire (6) for driving the second rotating transmission body (17) to the center of the second rotating transmission body (17) (18).

The steam cleaning machine for extending coating life according to the present invention 2 is characterized in that, in the present invention 1, the light metal is a magnesium alloy or an aluminum alloy.
The steam cleaning machine for extending coating life according to the present invention 3 is characterized in that, in the present invention 1, the resin body is a fiber reinforced plastic (FRP).

According to a fourth aspect of the present invention, there is provided a steam cleaning machine for extending the life of a coating film according to the first to third aspects of the present invention, wherein the first rotary transmission body and the second rotary transmission body are composed of lightweight gears (13, 17). It is a member to do.
According to a fifth aspect of the present invention, the first and second rotary transmission members are configured by lightweight pulleys (70, 71) and the belt (72). It is the member which carries out rotation transmission mutually via.

The steam cleaning machine for extending the life of a coating film according to the present invention 6 is the invention according to any one of the first to fifth aspects, wherein the outer cylinder of the casing (7) is held at a constant distance from the surface of the structure and the surface of the structure A rotating body (20) for facilitating the upward movement is provided.
The steam cleaning machine for coating film life extension of the present invention 7 is characterized in that, in the present invention 6, the rotating body (20) is a ring body or a ball made of a magnet.

  The steam cleaning machine for coating film life extension according to the present invention 8 is the invention according to any one of the first to seventh aspects, wherein the rotating brush (12) includes a disk-shaped substrate (12a) and a predetermined outer peripheral side of the substrate (12a). The brush (12b) disposed in the range of the base member (12a) on the center side surface is ejected from a spout formed on the rotating brush side of the connecting means (10). In order to rectify and supply steam to the brush (12b), a plurality of steam air flow adjusting portions (12c) having a predetermined length are formed in the radial direction.

  The steam cleaning machine for extending the life of a coating film according to the ninth aspect of the present invention is the steam cleaning machine according to the eighth aspect, wherein the brush is disposed on the outer edge and is a first brush that is hard hair, and is disposed on the inner side of the first brush. The second brush which is softer than the brush is planted.

  The steam cleaning machine for extending the life of a coating film according to the tenth aspect of the present invention is the ninth aspect, wherein the second brush is longer than the first brush bristles protruding from the base material and having a long dimension in the protruding length direction, and the first brush bristles. The second brush hair having a short dimension in the protruding length direction is planted.

The steam cleaning machine for extending coating life according to the eleventh aspect of the present invention is characterized in that, in the first to tenth aspects of the present invention, two handles (8) are provided in parallel.
In the steam cleaning machine for extending the life of a coating film according to the present invention 12, in the present inventions 1 to 10, a holding member (50) for supporting the back surface of the rotating brush (12) is provided inside the casing (7). It is characterized by that.

The steam cleaning machine for extending coating life according to the thirteenth aspect of the present invention is characterized in that, in the first to tenth aspects of the present invention, a thin rubber sheet (19) is attached to the outer peripheral side surface of the casing.
The steam cleaning machine for extending coating life according to the present invention 14 is the invention 1 to 10, wherein the handle (60) is provided on the hose connection member (61) via a heat insulating material (62). Features.

The steam cleaning machine for extending the life of a coating film according to the present invention 15 is characterized in that, in the present inventions 1 to 10, the casing (7) is formed of a cylindrical thin plate member.
The steam cleaning machine for extending the life of a coating film according to the present invention 16 is characterized in that, in the present inventions 1 to 15, the coated structure is a bridge.

  The steam cleaning machine for extending the life of the coating film according to the present invention has a thin shape to reduce the weight and simplify the configuration. On the structure, a steam spraying device for spraying steam (steam) and a rotating brush for cleaning the surface of the structure (surface to be cleaned) were provided to improve the cleaning function. As a result, the operability in the cleaning operation has been improved especially for structures such as bridges, and it has become a steam cleaning machine for extending the life of the paint film for manual operation that makes it easy to remove dirt, salt, etc. adhering to the surface. . Furthermore, dirt and the like can be removed uniformly and stably, and the cleaning effect is enhanced.

  In the rotating brush, a first brush that is hard hair is arranged on the outer edge, and a second brush that is softer than the first brush is arranged on the inner side of the first brush. It is possible to remove adhered substances such as rubber adhering to the surface to be cleaned. Moreover, the 2nd flock is a thing by which the 1st brush hair which the dimension of the protrusion length direction which protrudes from the base material is long, and the 2nd brush bristles shorter than the 1st bristles are planted, and there is an unevenness | corrugation. Even the surface of the structure can be contacted efficiently, and reliable cleaning can be performed.

FIG. 1 is an explanatory diagram showing the overall configuration of the cleaning system. FIG. 2 is a cross-sectional view of the coating film life-extending steam washer, and shows a cross section taken along the line AA in FIG. FIG. 3 is a plan view taken from the direction of arrow X in FIG. FIG. 4 is a plan view as viewed from the direction of arrow Y in FIG. FIG. 5 shows another embodiment, and is an external view of a steam cleaning machine for extending the life of a coating film having two branched L-shaped handles. FIG. 6 shows another embodiment, and is an external view of a coating film life-extending steam cleaner having a structure in which two branched handles are combined. FIG. 7 shows another embodiment, and is a partial cross-sectional view of a coating film life-extending steam cleaner provided with a restraining roller that suppresses the inclination of the rotating brush in the housing. FIG. 8 shows another embodiment and is a partial cross-sectional view of a configuration in which a handle and a hose connecting member are combined. FIG. 9 shows another embodiment, and is a partial cross-sectional view of a configuration in which the first rotary transmission body and the second rotary transmission body are pulleys. FIG. 10 is a partial explanatory view schematically showing a state where the surface to be cleaned is cleaned with the rotating brush of the steam cleaning machine for extending coating life. FIG. 11 is an explanatory diagram of a rotating brush schematically showing an example of the arrangement state of the brush hairs of the rotating brush.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a coating film life-extending steam cleaner according to the present invention will be described in detail with reference to the drawings. FIG. 1 is an overall system diagram showing the overall configuration of a cleaning system for using the coating film life-extending steam cleaning machine 1. A coating film life-extending steam cleaning machine (hereinafter referred to as a cleaning machine) 1 of the present invention includes a steam generator 2 for generating and supplying steam (steam), and generation of rotational power for generating and transmitting rotational power. It is connected to the means 3 so as to achieve the washing function movably.

  As shown in FIG. 1, the steam generator 2 and the rotational power generation means 3 are installed separately from the cleaning machine 1. The steam generator 2 and the rotational power generating means 3 are mounted on a moving table 4 provided with casters and can be moved to an arbitrary position integrally. The washing machine 1 is connected to the steam generator 2 via a hose 5 and is detachably connected to the hose 5 with a joint. Moreover, the rotational power generation means 3 and the flexible wire 6 are detachably connected by a joint portion.

  This flexible wire 6 is also called a snake wire and is a flexible rope-shaped rotating shaft twisted with a steel wire. From one shaft end side to the other shaft end side, it can be flexibly rotated. Rotational power is transmitted. The cleaning machine 1 is connected to these devices and then manually removes dirt, salt, etc. on the coating film such as a bridge (for example, a bridge girder) and performs cleaning to extend the life of the coating film surface. . Further, when the washing machine 1 is not used with the hose 5 or the like connected, the washing machine 1 can be put on the movable table 4. Next, the washing machine 1 according to the present invention will be described in detail.

  FIG. 2 is a cross-sectional view of the main body of the cleaning machine 1, and is a cross-sectional view taken along line AA in FIG. 3 is a plan view as viewed from the direction of arrow X in FIG. 2, and FIG. 4 is a plan view as viewed from the direction of arrow Y in FIG. As shown in the figure, the cleaning machine 1 has a structure in which each member for performing a cleaning function is arranged in a casing 7 constituting a thin cylindrical plate frame. The housing 7 is made of a resin body made of a lightweight resin [for example, fiber reinforced plastic (FRP), engineering plastic, etc.]. In this embodiment, the housing 7 is made of a lightweight resin body made of carbon fiber reinforced plastic (CFRP). Note that the housing may be made of a lightweight metal (for example, a magnesium alloy or an aluminum alloy). Two U-shaped handles 8 are fixedly disposed on the outer surface of the housing 7.

  Each of the two handles 8 is branched and fixed to both sides of the outer surface of the housing 7. The handle 8 is handled as a hand-operated washing machine (manual washing machine) that is held and used with both hands, and is made of a lightweight resin (for example, engineering plastic including nylon). A duralumin hose connection member 9 is provided at the center of the upper surface of the housing 7. The hose connecting member 9 constitutes a steam passage member to which the above-described hose 5 can be connected, and a hole 9a for allowing the steam to pass therethrough is provided at the center thereof.

  Further, as shown in the cross-sectional view of FIG. 2, a shaft-like coupling means 10 is fixed to the end portion of the hose connection member 9 on the housing 7 side. The hose connecting member 9 is provided with three screw members 11 screwed from the radial direction. The connecting means 10 is fitted and fixed to the recess 10 a of the shaft portion of the connecting means 10 by the screw member 11. At the center of the connecting means 10, there is a steam hole 10 b for allowing steam to pass in the direction of the central axis. The steam hole 10 b is provided in communication with the hole 9 a of the hose connection member 9. That is, the steam generated by the steam generator 2 is a hose 5, a hole 9 a of the hose connecting member 9, a steam hole 10 b of the connecting means 10, and a steam jet hole in which a jet port is formed (hereinafter referred to as a jet hole). ) It is ejected through 10d. One ejection hole 10d or a plurality of (for example, 1 to 5) ejection holes 10d are formed at equal angular positions or predetermined angular positions on the circumference. The steam generator 2, the hose 5, the hose connecting member 9, the connecting means 10 and the like constitute a steam ejection device. The number of ejection holes may be appropriately selected depending on what is subjected to steam cleaning, steam cleaning conditions, and the like.

  A rotating brush 12 is rotatably provided on the inner surface side of the housing 7, and the rotating brush 12 is provided with a spur gear 13 on the shaft portion of the connecting means 10 projecting to the outer side of the inner surface of the housing 7. And is supported rotatably. Accordingly, the connecting means 10 is a means for passing the steam with respect to the hose connecting member 9 and also a means for rotatably supporting the spur gear 13 to which the rotating brush 12 is attached. The rotary brush 12 has a configuration in which flocking, that is, a brush 12b is provided around the outer edge of a disc-shaped round plate member 12a.

FIG. 10 is a partial explanatory view schematically showing a state where the surface to be cleaned is cleaned with the rotating brush of the cleaning machine. FIG. 11 is an explanatory diagram of a rotating brush schematically showing an example of the arrangement state of the brush hairs of the rotating brush.
As shown in FIG. 10, the brush 12b is arranged on the outer edge of the round plate member 12a, and a first brush 12bh in which harder brush hair is planted and a brush hair softer than the first brush 12bh is planted. 2 brushes 12bs. The first brush 12bh is disposed over the entire circumference of the outer edge of the round plate member 12a in order to remove dust and the like adhering to the surface Wa to be cleaned which is the surface of the structure.

  The second brush 12bs is disposed inside the first brush 12bh and is for cleaning the surface Wa to be cleaned. The second brush 12bs is composed of a first brush hair 12bs1 projecting from the round plate member 12a and having a long projecting length, and a second brush hair 12bs2 having a projecting length shorter than the first brush hair 12bs1. . Even if the first brush hairs 12bs1 and the second brush hairs 12bs2 are alternately planted at predetermined angles as shown in FIG. 11, they are arranged on the inner peripheral side and the outer peripheral side as shown in FIG. It may be flocked. Moreover, the hair transplanted by combining the arrangement | positioning for every predetermined angle, and arrangement | positioning of an inner periphery and an outer periphery may be sufficient. As described above, the first brush bristles 12bs1 and the second brush bristles 12bs2 are made longer and shorter, so that uneven portions (for example, the head of the bolt B and the nut N provided on the bridge girder and the bridge girder surface) are formed on the surface to be cleaned. Even in some cases, the second brush 12bs can efficiently contact and perform reliable cleaning (see FIG. 10).

  In addition, a spur gear (first rotation transmission body) 13 is integrally attached to the round plate member 12 a via a bolt 14. The spur gear 13 is supported so as to be relatively rotatable with respect to the shaft portion of the connecting means 10 and between a spacer 15 (or a bearing) provided between the spur gear 13 and the housing 7. The spur gear 13 is a gear made of lightweight resin (for example, engineering plastic including nylon). Further, near the center of the lower surface (side surface) of the round plate member 12a, a steam that is a steam air flow adjusting portion formed in a predetermined length in the radial direction (radial direction) from the center point of the brush 12b toward the brush 12b side. A plurality (for example, eight) of airflow adjustment convex portions (hereinafter referred to as convex portions) 12c are formed. The convex portion 12c has a function of adjusting the airflow of steam, which will be described later, and is for guiding the steam so that it can be uniformly ejected and supplied to the entire brush 12b.

  The end of the connecting means 10 projects to the brush 12b side, and the end constitutes a flange portion 10c to prevent the rotating brush 12 from jumping out of the washing machine 1. The flange portion 10c has a tapered shape, and an ejection hole 10d communicating with the steam hole 10b is provided on the inclined surface. Steam supplied from the hose connection member 9 through the connecting means 10 is supplied from the ejection hole 10d. I try to erupt. As described above, the steam ejected from the ejection hole 10d is adjusted so that the airflow is constant by the convex portion 12c of the rotating round plate member 12a, and is ejected and supplied to the brush 12b side.

  The spur gear 13 is rotatably supported on the shaft portion of the connecting means 10, and as described above, the spur gear 13 is supported by the connecting means 10 with the spacer 15 (or a bearing) interposed therebetween. The spur gear 13 is restricted by the flange portion 10c and is prevented from protruding outward. Although the casing 7 has a flat cylindrical shape, the casing 7 is further reduced in thickness to reduce weight, and is configured to be reinforced with a plurality of ribs or in a configuration reinforced in a wave shape. Also good.

  The rotating brush 12 rotates integrally with the spur gear 13. The spur gear 13 is connected to a small gear (second rotating transmission body) 17 that is rotatably supported by the housing 7 via a spacer (or bearing) 16. I'm engaged. Accordingly, the spur gear 13 is rotated by the rotational drive of the small gear 17. The small gear 17 is driven by the rotational power generating means 3 installed outside. The small gear 17 is a gear made of lightweight resin (for example, engineering plastic including nylon). The small gear 17 and the spur gear 13 may be light metal gears. A drive transmission joint 18 directly connected to the small gear 17 is rotatably provided on the outer surface side of the housing 7, and the rotatable flexible wire 6 is connected to and coupled to the drive transmission joint 18. ing.

  Therefore, the washing machine 1 transmits the rotational power of the rotational power generating means 3 installed outside to the small gear 17 via the flexible wire 6 and rotates the rotary brush 12 via the spur gear 13. It is. On the other hand, the steam is supplied from the steam generating means 2 to the washing machine 1 through the hose 5 connected to the hose connecting member 9. One end of the hose 5 is detachable from the hose connection member 9. The steam supplied to the hose connecting member 9 is ejected to the brush 12b side from the ejection hole 10d provided in the flange portion 10c through the steam hole 10b of the connecting means 10.

  Along with the rotation of the rotating brush 12, the convex portion 12c having a predetermined length formed on the round plate member 12a also rotates. The ejected steam is guided by the rotating convex portion 12c, and is uniformly rectified and ejected to the brush 12b side. Therefore, the steam is evenly discharged to the entire housing 7 by the rotation of the rotating brush 12, and the cleaning effect is enhanced. In addition, a thin plate-like rubber 19 is attached to the outer cylinder side surface (outer peripheral surface) of the casing 7 in order to relieve the contact pressure during the operation when the cleaner 1 collides with a structure or the like. It is attached.

  Furthermore, a rotating body is provided at the outer cylinder edge (outer peripheral lower end) of the housing 7 for facilitating a moving operation during work and reducing the burden. In the figure, this rotating body is provided at four locations as roller members 20. That is, the roller member 20 is rotatably provided in the attachment part 7a provided in the lower part of the housing | casing 7 via the shaft 7b (refer FIG. 7). The rotating body may be a ball. The rotating body is a magnetic member. Having the magnetism means that the washing machine 1 is magnetically supported with respect to a steel counterpart bridge (for example, a bridge girder), so that the burden on the operator can be reduced during the washing operation. It is done. For this reason, work efficiency will be improved. Further, since the interval between the rotating brush 12 and the surface to be cleaned Wa of the counterpart bridge can be made constant and almost constant, the construction quality (cleaning quality) can be ensured. In addition, the rotating body may be arrange | positioned in 6 directions and 8 directions of a rotation direction.

[Example]
In the cleaning machine 1 of this embodiment, at the point 1 (Osaka), the point 2 (Fukuoka), and the point 3 (Okinawa), the surface Wa to be cleaned, which is the surface of the coating such as a bridge girder, is washed, and the bridge girder before and after the washing. The state of this was measured, and cleaning performance and deposit removal performance were confirmed. The measurement items were three items: measurement of attached salt content, measurement of coating film gloss, and coating film color difference measurement. Table 1 shows the measurement results of the measurement items described above. In addition, since the value of the measurement result of each measurement item varies by a predetermined amount depending on the state of the measurement location, Table 1 describes the median value [(maximum value + minimum value) / 2] of each measurement item. doing.

[Measurement of adhered salt content]
The amount of salt adhering to the coating film surface before and after cleaning (NaCl: mg / m ² ) was measured at point 1. “Gauze method (wiping the coating film surface with gauze and measuring the amount of salt using an ion detector tube from the deposit. Method 2), at points 2 and 3, the amount of salt adhering to the coating film surface was measured using a “surface salinity meter SNA-2000 (trade name: manufactured by Sanko Electronics Laboratory Co., Ltd.)”. As a result, it was confirmed that about 99% could be removed when the amount of adhering salt before washing was large as in point 2. Moreover, even when the amount of adhering salt before washing was small as in point 1, it could be reduced to half or less, and the washing effect could be confirmed.

[Coating gloss measurement]
The glossiness of the coating film before and after cleaning was measured using a “Glossmeter GM-268 (trade name: manufactured by Konica Minolta Optics Co., Ltd.). In JIS-Z-8741 (Japanese Industrial Standard), the glossiness at a measurement incident angle of 60 ° was measured. When the angle is 10 or less, it is specified that the incident angle is changed to 85 °, and the 60 ° gloss before cleaning at three points is as low as 10 or less, so the incident angle is 85 °. As a result, it was confirmed that the measured value after cleaning was significantly improved and the glossiness was improved at any point compared to the measured value before cleaning. Comparing the glossiness of the carefully cleaned panel) with the glossiness after washing, it was confirmed that the glossiness was recovered by removing dust on the coating surface, and no more than about 1-5%. .

[Coating color difference measurement]
The coating color difference before and after cleaning was measured by using a color difference meter CR-300 (trade name: manufactured by Konica Minolta Optics Co., Ltd.). If this is the case, the measured value of the initial state of the coating will be compared. However, since there is no initial measured value, the measured value of the reference panel (panel carefully cleaned beforehand) is considered the initial state of the coating. As a result, the coating color difference measurement value after washing showed a smaller value than the coating color difference measurement value before washing, and the coating surface color after washing was It was confirmed that the surface color of the reference panel was approaching due to the removal of the adhered matter.

[Other embodiments]
FIG. 5 is an external view of a washing machine showing a modification of the handle. The handle 30 attached to the housing 7 is bifurcated into a substantially L-shaped handle 30. The shape of the handle 30 is simplified because it has a structure in which the pipe or the bar is only bent as compared with the embodiment described above. 6 also shows a modification of the handle, which is a handle 40 having a configuration in which both ends of two branched handles are combined. This example is also simplified as in FIG. Further, the handle 40 can be made suitable for work at a high place by being provided so as to extend a predetermined length. If it did in this way, it became suitable also for the washing | cleaning of the aircraft body, the vehicle body of a railway vehicle, etc.

  FIG. 7 is a partial cross-sectional view showing a structural example in which the holding roller 50 for suppressing the inclination of the round plate member 12 a of the rotating brush 12 is provided in the housing 7. The rotating brush 12 receives a reaction force from the brush 12b partially pressing the surface to be cleaned Wa during the operation, and a part of the rotating brush 12 may be partially inclined or deformed by this reaction force. . If the inclination or deformation is large, the rotation operation is hindered, and this inclination must be prevented. In order to prevent this inclination, a pressing roller (pressing rotating body) 50 that can contact the round plate member 12a is provided.

  The holding roller 50 is rotatably attached to a stay 51 fixed to the inside of the housing 7. Although not shown, the pressing rollers 50 are provided at three equiangular positions so as to be uniform along the circumferential direction of the casing. When the round plate member 12a is tilted more than necessary, it comes into contact with the restraining roller 50 and the relative tilt with the housing 7 is restrained. The holding rotating body may be a ball type holding rotating body instead of the roller type like the pressing roller 50.

  FIG. 8 is a partial cross-sectional view showing a modification of the handle and the hose connecting member. In this example, the handle 60 is put on the outer shape of the hose connecting member 61 so that the heat transfer of the steam is blocked by the heat insulating material 62. The hose connection member 61 is substantially L-shaped with respect to the outer surface of the housing 7. Attachment to the outer surface of the housing 7 is the same as that described above, but the end portion is bent to serve as a handle. With this handle structure, there is a merit that one-handed operation is easy, but since it is one-handed operation, the weight of the washing machine 1 is desired to be further reduced. In the case of a short time operation, this example is effective when applied to a small washing machine.

  FIG. 9 is a partial cross-sectional view of another embodiment showing a modification of the first rotating transmission body and the second rotating transmission body. In this example, the first rotation transmission body is a large pulley 70 and the second rotation transmission body is a small pulley 71, and the power transmission is a rubber belt 72. The large pulley and the small pulley are pulleys made of lightweight resin (for example, engineering plastic including nylon). Although the figure shows a V-belt shape, it may be a belt / pulley having a circular cross section, or a toothed pulley / toothed belt. In this example, there is a limit to the amount of power to be transmitted compared to the gear type, but the noise is reduced due to the belt transmission, and it is possible to set an arbitrary number of rotations by changing one pulley and the belt. is there.

  As mentioned above, although embodiment of this invention was described, it cannot be overemphasized that this invention is not limited to this form, and can change within the range which does not deviate from the objective of this invention and the meaning. For example, this cleaning machine is described as being used to remove paint film stains on bridges, etc., but the outer walls of buildings, houses, etc., aircraft bodies, bodies of railway vehicles, etc. It may be used for cleaning. Further, it may be used for removal of radioactive materials from outer walls of bridges, houses, buildings, etc. contaminated with radioactive materials scattered due to nuclear power plant accidents, that is, decontamination work.

  Further, the steam air flow adjusting portion may be a steam air flow adjusting concave portion in which a concave portion is formed in the rotating brush. Furthermore, the steam air flow adjustment convex portion and the steam air flow adjustment concave portion are not linear, but may have a curved shape or a combination of a straight line and a curved line. Moreover, the cross-sectional shape of the convex part and recessed part of a steam airflow adjustment part may be a triangular shape and a trapezoid shape. The shape, number, and the like of the steam air flow adjusting unit may be appropriately selected depending on what is steam cleaned, steam cleaning conditions, and the like.

DESCRIPTION OF SYMBOLS 1 ... Steam cleaning machine for life extension of coating film 2 ... Steam generator 3 ... Rotation power generation means 4 ... Moving stand 5 ... Hose 6 ... Flexible wire 7 ... Housing 8 ... Handle 9 ... Hose connection member 10 ... Connection means 12 ... Rotation Brush 13 ... Spur gear (first rotating transmission)
17 ... Small gear (second rotary transmission)
18 ... Joint for drive transmission 19 ... Plate rubber 20 ... Roller member

Claims (16)

A steam generator (2) for supplying steam with a hose (5);
A coating film life extension steam cleaning machine (1) for use in a cleaning system having a rotational power generating means (3) for transmitting rotational power with a flexible wire (6),
A casing (7) made of a lightweight metal or resin body;
A handle (8) disposed and fixed on one surface of the housing (7) for gripping with a hand;
A hose connection portion (9) fixed at one end to the housing (7) and connected to the hose (5) for passing the steam from the steam generator (2);
A first rotary transmission (13) rotatably supported on the other surface of the housing (7);
A rotating brush (12) for cleaning the surface of the coated structure fixed and rotated on the first rotating transmission body (13);
Connecting means (10) disposed at the center of the housing (7), fixed to the hose connection (9), rotatably supporting the first rotary transmission (13) and passing the steam. )When,
A second rotation transmission body (17) that is rotatably provided on the other surface side of the housing (7) and rotationally drives the first rotation transmission body (13);
One end of the flexible wire (6), which is disposed on one surface of the housing (7) and drives the second rotating transmission body (17), is rotatable about the center of the second rotating transmission body (17). A steam cleaning machine for extending the life of a coating film, comprising a coupling for driving transmission (18) to be connected. In the steam cleaning machine for extending the life of coating film according to claim 1,
The said lightweight metal is a magnesium alloy or an aluminum alloy. The steam cleaning machine for extended film life characterized by the above-mentioned. In the steam cleaning machine for extending the life of coating film according to claim 1,
The resin body is a fiber reinforced plastic (FRP). In the steam washer for life extension of a paint film given in any 1 paragraph of Claims 1-3,
The said 1st rotation transmission body and the 2nd rotation transmission body are members comprised with a lightweight gearwheel (13,17) and meshing | engaging each other and rotating, The steam cleaning machine for life extension of a coating film characterized by the above-mentioned. In the steam washer for life extension of a paint film given in any 1 paragraph of Claims 1-3,
The first rotation transmission body and the second rotation transmission body are members composed of lightweight pulleys (70, 71) that rotate and transmit to each other via a belt (72). washing machine. In the steam cleaning machine for coating film life extension according to any one of claims 1 to 5,
The outer cylinder of the housing (7) is provided with a rotating body (20) for maintaining a certain distance from the surface of the structure and facilitating movement on the surface of the structure. A steam cleaning machine for extending coating life. In the steam cleaning machine for coating film life extension according to claim 6,
The rotating body (20) is a ring body or a ball composed of a magnet. In the steam washer for life extension of a paint film given in any 1 paragraph of Claims 1-7,
The rotating brush (12) includes a disk-shaped base material (12a) and a brush (12b) disposed in a predetermined range on the outer peripheral side of the base material (12a), and the base material (12a). In the center side surface, the steam ejected from the spout formed on the rotating brush side of the connecting means (10) is rectified and supplied to the brush (12b) by a predetermined length in the radial direction. A plurality of steam air flow adjusting portions (12c) are formed. In the steam cleaning machine for coating film life extension according to claim 8,
The brush (12b) is disposed on the outer edge and is a first brush (12bh) that is stiff hair, and a second brush (12bs) that is disposed on the inner side of the first brush and is softer than the first brush. A steam cleaning machine for extending the life of a coating film, characterized in that In the steam cleaning machine for coating film life extension according to claim 9,
The second brush (12bs) has a first brush bristle (12bs1) projecting from the base material (12a) and having a long dimension in the projecting length direction, and a second projecting length dimension shorter than the first brush bristle. Two brush hairs (12bs2) are planted. A steam cleaning machine for extending coating life. In the steam washer for life extension of a paint film given in any 1 paragraph of Claims 1-10,
The said handle | steering-wheel (8) is provided in two in parallel. The steam cleaning machine for coating-film life extension characterized by the above-mentioned. In the steam washer for life extension of a paint film given in any 1 paragraph of Claims 1-10,
A steam cleaning machine for extending coating life, wherein a holding member (50) for supporting the back surface of the rotating brush (12) is provided inside the casing (7). In the steam washer for life extension of a paint film given in any 1 paragraph of Claims 1-10,
A thin plate rubber (19) is attached to the peripheral surface of the outer cylinder side of the casing. In the steam washer for life extension of a paint film given in any 1 paragraph of Claims 1-10,
The said handle (60) is provided through the heat insulating material (62) on the said hose connection member (61). The steam cleaning machine for life extension of a coating film characterized by the above-mentioned. In the steam washer for life extension of a paint film given in any 1 paragraph of Claims 1-10,
The casing (7) is composed of a cylindrical thin-walled plate member. In the steam cleaning machine for coating film life extension according to any one of claims 1 to 15,
The coating film-extending steam cleaning machine, wherein the coated structure is a bridge.

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