JP2014088713A - Water jet type removing device for road surface - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water jet type removing device for road surface capable of effectively sucking and collecting water jetted to a road surface and a removed body removed from the road surface.SOLUTION: A water jet type removing device 100 for road surface has a jet body 101 for jetting high-pressure water toward a road surface G held by a rotating pulley 106 through a jet body holder 105. A rotating pulley 106 is supported on a mount plate 124 through a swinging pulley 114 and a pulley holder 122. An outer skirt 128 surrounding a periphery of a jet body 101 is provided outside the jet body 101. A vacuum device 130 which sucks air in the outer skirt 128 is connected to the outer skirt 128. The inside of the outer skirt 128 is sectioned by an inner skirt 120 into a jet body region JE where the jet body 101 is present and a vacuum region VE communicating with the vacuum device 130 while communicating with the jet region JE through an orifice part Or.

Description

  The present invention relates to a road surface fountain type removing device that removes an object to be removed such as a deposit adhered on a road surface or a road surface itself with high-pressure water ejected toward the road surface.

  Conventionally, there is known a fountain type removal device for a road surface that removes deposits adhering to the road surface, the surface of the road surface itself, etc. from the road surface as an object to be removed by jetting high pressure water toward the road surface. . For example, Patent Document 1 below discloses a jet injection device that includes at least two nozzles that inject high-pressure water on the outer periphery of a nozzle holder that is formed in a disk shape and is driven to rotate, and removes white lines on a road surface. ing.

JP 2007-283183 A

  However, the jet spray device described in Patent Document 1 has a problem that the efficiency of collecting water sprayed onto the road surface and white line scraps peeled off from the road surface is low. That is, in the jet injection device described in the above-mentioned Patent Document 1, the suction duct for sucking the water sprayed on the road surface and the white line debris peeled off from the road surface surrounds the periphery of the nozzle holder, Therefore, there is a problem in that the suction efficiency is lowered because a region (space) that is a suction target is large. In addition, due to such circumstances, the conventional road surface injection type removing device requires a vacuum device having a large suction capacity that can compensate for the reduction in suction efficiency, which increases the size and cost of the device. There was a problem of being invited.

  The present invention has been made to cope with the above-described problem. By effectively sucking and collecting the water sprayed on the road surface and the object to be removed from the road surface, the apparatus configuration can be reduced in size and cost. It is providing the fountain type removal apparatus for road surfaces which can be implement | achieved.

  In order to achieve the above object, a feature of the present invention is a fountain-type removal device for road surface that jets and removes water on an object to be removed on the road surface. An injection body to be injected, an outer skirt which is formed in a cylindrical shape and surrounds at least a portion of the road surface to which water is injected, and a vacuum which is connected to the outer skirt and generates a negative pressure in an inner region of the outer skirt And an inner skirt that divides the inner region of the outer skirt into an injector region where the injector exists and a vacuum region that communicates with the vacuum means in a state where the injector region communicates with the injector region through an orifice portion And air introducing means for introducing air into the inside.

  According to the feature of the present invention configured as described above, the road surface fountain mold removing device surrounds the periphery of the ejector that injects water toward the road surface with the outer skirt, and the inner side of the outer skirt by the inner skirt. Is divided into a spray region in which the vacuum is present and a vacuum region in which the vacuum means communicates. Thereby, the fountain type removing device for road surface sucks and collects the water and the object to be removed existing in the ejector region partitioned in the outer skirt through the orifice portion into the vacuum region partitioned in the outer skirt. ing. For this reason, the road surface fountain type removing device can efficiently collect water jetted onto the road surface and the object to be removed removed from the road surface as compared with the conventional road surface fountain type removing device. As a result, the road surface fountain-type removing device can realize downsizing and cost reduction of the device configuration.

  Another feature of the present invention is that, in the road surface fountain mold removing device, the orifice portion is formed by a gap between the lower end portion of the inner skirt and the road surface.

  According to another feature of the present invention configured as described above, in the road surface fountain type removing device, since the orifice portion is formed between the lower end portion of the inner skirt and the road surface, the water jetted onto the road surface and the road surface The to-be-removed object removed from can be efficiently sucked.

  Another feature of the present invention is that in the fountain mold removing device for a road surface, the outer skirt is positioned through a gap whose lower end is narrower than a gap formed between the inner skirt and the road surface with respect to the road surface. It is in.

  According to another feature of the present invention configured as described above, the road surface fountain type removing device forms an orifice portion formed between the inner skirt and the road surface between the lower end portion of the outer skirt and the road surface. It arrange | positions through the clearance gap narrower than a clearance gap. As a result, the fountain mold removing device for road surface is injected from the outside of the outer skirt to the inside of the outer skirt, that is, to prevent the outside skirt from interfering with the road surface while suppressing the introduction of outside air to the vacuum region. The object to be removed that has been removed from the water or the road surface can be sucked.

  Another feature of the present invention is that in the road surface fountain type removing device, the orifice portion has an area of a portion where the vacuum region and the ejector region communicate with each other, and an area of a portion where the vacuum means communicates with the vacuum region. It is that it is 1.5 times or less.

  According to another aspect of the present invention configured as described above, in the road surface fountain type removing device, the opening area of the orifice portion that communicates the vacuum region and the spray body region is 1 of the opening area of the vacuum means with respect to the vacuum region. Since it is .5 times or less, according to the experiments by the present inventors, water sprayed onto the road surface and objects to be removed removed from the road surface can be efficiently sucked.

  Another feature of the present invention is that in the road surface fountain type removing device, the vacuum region is formed including the rear side in the traveling direction of the road surface fountain type removing device with respect to the injector.

  According to the other feature of the present invention configured as described above, the road surface fountain type removing device sucks water and white line debris more efficiently than arranging the vacuum region on the front side in the traveling direction with respect to the ejector. Can do.

  According to another feature of the present invention, in the road surface fountain mold removing device, an injector holding means for holding the injector is further provided above the injector region, and the air introducing means is provided in the injector holding means. It exists in the state connected to the injection body area | region, and is comprised by the through-hole which introduces external air into the injection body area | region.

  According to another feature of the present invention thus configured, the road surface fountain mold removing device is provided with the spray body holding means for holding the spray body above the inner skirt, and the air introduction means is sprayed. It is comprised by the through-hole which introduces external air in the state connected to the injection body area | region to the body holding means. Thereby, the fountain mold removing device for road surface is removed from the water jetted onto the road surface and the road surface because the outside air is introduced from above the jet region and the inflow of the outside air from the outside of the outer skirt is prevented. An object to be removed can be effectively guided to the vacuum region and sucked.

  Another feature of the present invention is that, in the fountain mold removing device for a road surface, the length of the inner skirt can be expanded and contracted with respect to the road surface.

  According to another feature of the present invention configured as described above, the road surface fountain mold removing device has an inner skirt whose length with respect to the road surface expands and contracts. The suction force with respect to the vacuum region can be appropriately adjusted according to the state of the removed object to be removed.

  According to another aspect of the present invention, the road surface fountain mold removing device further includes an injection body moving means for moving the injection body along the road surface, and the injection body moving means includes three wheels that roll on the road surface. It is in having.

  According to another feature of the present invention configured as described above, in the road surface fountain type removing device, the spray body moves on the road surface by the spray body moving means having three wheels. Thereby, since the fountain type removing device for road surface supports the ejector on the road surface at so-called three points, the ejector can always be stably moved even when the road surface is uneven.

It is the partially broken side view seen from the AA line which shows the outline of the external appearance structure of the fountain type removal apparatus for road surfaces which concerns on 1st Embodiment of this invention. It is a partially broken top view which shows roughly the principal part in the external appearance structure of the fountain type removal apparatus for road surfaces shown in FIG. It is a block diagram of the control system which controls the action | operation of the fountain type removal apparatus for road surfaces shown in FIG. It is a partially broken side view which shows the outline of an external appearance structure when shortening the length of an inner skirt in the fountain type removal apparatus for road surfaces shown in FIG. It is explanatory drawing which showed typically the movement process of the track | orbit of high pressure water in the removal process of the to-be-removed object by the fountain type removal apparatus for road surfaces shown in FIG. It is the partially broken side view seen from the BB line which shows the outline of the external appearance structure of the fountain type removal apparatus for road surfaces which concerns on 2nd Embodiment of this invention. It is a partially broken top view which shows roughly the principal part in the external appearance structure of the fountain type removal apparatus for road surfaces shown in FIG. It is explanatory drawing which showed typically the movement process of the track | orbit of high pressure water in the removal process of the to-be-removed object by the fountain type removal apparatus for road surfaces shown in FIG. It is a top view which shows typically the injection body area | region and vacuum area | region formed with the outer skirt and inner skirt which concern on the modification of this invention. It is a top view which shows typically the injection body area | region and vacuum area | region formed with the outer skirt and inner skirt which concern on the other modification of this invention.

(First embodiment)
DESCRIPTION OF EMBODIMENTS Hereinafter, a first embodiment of a road surface fountain mold removing device according to the present invention will be described with reference to the drawings. FIG. 1 is a partially broken side view showing an outline of an external configuration of a road surface fountain mold removing device 100 according to the present invention. FIG. 2 is a partially broken plan view schematically showing the main part of the external configuration of the road surface fountain mold removing device 100 shown in FIG. FIG. 3 is a block diagram of a control system that controls the operation of the road surface fountain removing device 100 shown in FIG. 1. Note that each drawing referred to in the present specification is schematically represented by exaggerating some of the components in order to facilitate understanding of the present invention. For this reason, the dimension, ratio, etc. between each drawing and each component may differ. This road surface fountain type removing device 100 is a mechanical device for peeling off and removing the white line L from the road surface G by injecting high-pressure water onto the white line L formed on the road surface G such as a road.

(Configuration of road surface fountain mold removing device 100)
The road surface fountain mold removing device 100 includes an ejector 101. The injection body 101 is an instrument for injecting high-pressure water onto the road surface G, and is configured by forming a stainless material into a long tubular shape. This injection body 101 is connected to a high-pressure water supply pump 102 that supplies high-pressure water to one end (the upper side in the figure) via a flexible water supply hose 103 and the other end (the lower side in the figure). A fountain nozzle 104 for injecting high-pressure water is provided in the section. In this case, the fountain nozzle 104 may be a nozzle that injects high-pressure water supplied from the high-pressure water supply pump 102 into one or more water columns.

  The high-pressure water pump 102 is a mechanical device that pressurizes water and supplies the spray body 101 with water, and is provided on a cart (not shown). The high-pressure water pump 102 is supplied with water from a water source (not shown) (for example, a general water supply, a storage tank, a reservoir, etc.) and injects so-called ultrahigh-pressure water in which the water is pressurized in a range of 100 MPa to 300 MPa. Supply to body 101. In the present embodiment, the high-pressure water supply pump 102 supplies 200 MPa of ultrahigh-pressure water to the ejector 101.

  The ejector 101 is held by the rotation pulley 106 via the ejector holder 105. The ejection body holding body 105 is an aluminum member for detachably holding the ejection body 101, and is configured in a stepped cylindrical shape having a through-hole through which the ejection body 101 passes. The injection body holding body 105 is formed with a through hole that holds the injection body 101 inclined at an angle of 10 ° with respect to the vertical direction and outward in the figure, and the injection body is formed inside the through hole. A bearing is provided for holding 101 in a rotatable state.

  The rotation pulley 106 is a mechanical element for rotationally displacing the injector 101 held via the injector holder 105, and is made of an aluminum material. The rotation pulley 106 is formed with two fitting holes 106a facing each other at the center in plan view, and four air introduction holes 106b on both sides of the two fitting holes 106a. Are formed respectively. Of these, the two fitting holes 106a are stepped through holes into which the injector holder 105 and a weight holder 107 described later are detachably fitted. In addition, the eight air introduction holes 106b are through holes for introducing outside air into the ejector region JE, which is an inner region of the inner skirt 120 described later in detail.

  The weight holder 107 is an aluminum member for detachably holding the weight 108, and is configured in a stepped cylindrical shape with a through hole through which the weight 108 passes, similarly to the injector holder 105. ing. In this case, the weight holding body 107 is formed so that the through-hole holding the weight 108 is inclined outward in the figure at an angle of 10 ° with respect to the vertical direction, like the injection body holding body 105. . The weight 108 is a stainless steel weight for adjusting the balance with the ejector 101 in the rotating pulley 106 that holds and rotates the ejector 101, and is a round bar having the same length and weight as the ejector 101. Is formed. The road surface injection-type removing device 100 can also be configured by omitting the weight 108.

  The rotation pulley 106 is coupled to the rotation drive pulley 111 via the flat belt 110 in a state of being rotatably supported by the swing pulley 114 via the bearing 109. The flat belt 110 is a mechanical element for transmitting the rotational driving force of the rotational driving pulley 112 to the rotational pulley 106, and is configured by forming a belt-like rubber material into a ring shape. The flat belt 110 is installed in a state of frictional contact with the rotation pulley 106 and the rotation drive pulley 111. The rotation driving pulley 111 is a mechanical element that is rotated by the rotation driving of the rotation driving motor 112. The rotational drive motor 112 is an electric motor that is rotationally driven by operation control of the control unit 140 described later, and is fixed on the support base 113. That is, the rotation pulley 106 is driven to rotate by the rotation drive of the rotation drive motor 112. In the present embodiment, the rotation driving motor 112 rotates the rotation pulley 106 at a speed in the range of 300 rpm or more and 500 rpm. The support table 113 is a stainless steel shelf fixed in a convex shape on a mounting plate 124 described later.

Swinging pulley 114, rotational displacement of the position different from the rotation center O ₁ of the rotary pulley 106 rotating pulleys 106 as a rotation center O _2, i.e., a position different from the rotation center O ₁ of the pulley 106 to rotate It is a mechanical element for revolving along a circular orbit having a rotation center O _2, and is made of an aluminum material. Inside the swinging pulley 114, a through hole is formed through which the ejector 101 and the weight 108 that are rotationally displaced by the rotational driving of the rotating pulley 106 can pass. The swing pulley 114 is coupled to the swing driving pulley 117 via a flat belt 116 while being rotatably supported by the pulley holder 122 via a bearing 115.

  As with the flat belt 110, the flat belt 116 is a mechanical element for transmitting the rotational driving force of the swing driving pulley 117 to the swing pulley 114, and is configured by forming a belt-like rubber material into a ring shape. Has been. The flat belt 116 is installed in a state of frictional contact with the swing pulley 114 and the swing drive pulley 117. The swing drive pulley 117 is a mechanical element that is rotated by the rotational drive of the swing drive motor 118. The swing driving motor 118 is an electric motor that is rotationally driven by the operation control of the control unit 140, and is fixed on the support base 113. That is, the swing pulley 114 is driven to rotate by the rotation drive of the swing drive motor 118. In this embodiment, the swing drive motor 118 rotates the swing pulley 114 at a speed in the range of 20 rpm or more and 60 rpm.

  An inner skirt 120 is provided on the lower surface of the swing pulley 114 via a ring-shaped collar 119. The inner skirt 120 is a cover surrounding the periphery of the rotating and swinging ejector 101, and is formed by forming a stainless material into a cylindrical shape. The inner skirt 120 is attached to the fixed side inner skirt 120a so as to be displaceable in the axial direction of the fixed side inner skirt 120a by two fixing bolts 121 on the outer side of the fixed side inner skirt 120a. The movable side inner skirt 120b. That is, as shown in FIG. 4, the inner skirt 120 is formed such that the length of the inner skirt 120 can be adjusted by loosening the two fixing bolts 121 so that the cylindrical portion expands and contracts. In this case, the inner skirt 120 is configured to be adjustable with a length that is equal to or less than the length of the outer skirt 128 described later. Between the lower end portion of the inner skirt 120 and the road surface G, an orifice portion Or formed by a gap therebetween is formed.

  The orifice portion Or is a portion in which a flow path through which air flows between both an injection region JE where the injection body 101 exists and a vacuum region VE described later is narrowed. The orifice portion Or has an area in the range of 0.8 to 1.5 times the opening area in which the discharge duct 129, which will be described later, opens in the vacuum region VE due to the expansion and contraction of the inner skirt 120. It is adjusted to become.

  The pulley holder 122 is a member that rotatably holds the swinging pulley 114, and is configured by forming an aluminum material into a ring shape. In this case, the through hole formed inside the pulley holder 122 is formed in a size that allows the ejector 101 and the weight 108 that are rotationally displaced by the rotational drive of the rotating pulley 106 to pass therethrough. The pulley holder 122 is fixed on the mounting plate 124 of the moving table 123.

  The moving table 123 is a cart for supporting the parts and equipment constituting the road surface fountain mold removing device 100 and moving on the road surface. The moving table 123 is mainly composed of a mounting plate 124, a gripping rod 125, a front wheel 126a, and a rear wheel 126b. It is configured. The mounting plate 124 is a rectangular flat plate-like stainless steel table that supports components and equipment that constitute the road surface fountain mold removing device 100 including the pulley holder 122. In this case, the mounting plate 124 is formed with a through-hole through which the ejector 101 and the weight 108 that are rotationally displaced by the rotational driving of the rotating pulley 106 can pass inside the portion that supports the pulley holder 122.

  The gripping rod 125 is a portion that becomes a gripper of the road surface fountain mold removing device 100 and is made of a stainless steel pipe material. The gripping rod 125 surrounds three sides of the rectangular mounting plate 124, and a portion extending rearward of the road surface fountain mold removing device 100 bends upward in the drawing and then extends in the horizontal direction to be gripped by the operator. Make up part.

  The front wheel 126a and the rear wheel 126b are wheels for moving the road surface fountain mold removing device 100, and are respectively attached to the front side and the rear side of the road surface fountain type removing device 100 on the back surface of the mounting plate 124. . Among these, the two front wheels 126 a provided on the front side of the road surface fountain mold removing device 100 are connected to the movement drive motor 127 and are driven to rotate by the movement drive motor 127. The movement drive motor 127 is an electric motor that is rotationally driven by the operation control of the control unit 120, and is fixed on the surface of the mounting plate 124. On the other hand, one rear wheel 126b provided on the rear side of the road surface fountain mold removing device 100 is provided in a free state in which the direction and rotation with respect to the mounting plate 124 are free. That is, the moving table 123 is supported at three points on the road surface G by three wheels including two front wheels 126a and one rear wheel 126b.

  An outer skirt 128 is provided on the lower surface of the pulley holder 122. The outer skirt 128 is a cover that surrounds the outer side of the inner skirt 120, and is formed by forming a stainless material into a cylindrical shape. The outer skirt 128 has an inner diameter that forms a ring-shaped vacuum region VE having a volume smaller than that of the inner skirt 120 and the inner skirt 120, and a predetermined gap between the inner skirt 120 and the road surface G. It is formed with a longer length. In this case, the gap between the outer skirt 128 and the road surface G is preferably not less than the thickness of the white line protruding from the road surface G, more specifically, not less than 3 mm and not more than 10 mm. Further, the inner diameter of the outer skirt 128 may be formed such that a gap of 30 mm or more and 60 mm or less is formed with the outer peripheral surface of the inner skirt 120.

  A discharge duct 129 is connected to the wall surface of the outer skirt 128 so as to penetrate the inner region of the outer skirt 128. The discharge duct 129 is a tube for discharging the white line debris peeled off by the injection of the pressurized water from the spray body 101 together with the air from the inner region of the outer skirt 128, more specifically, from the vacuum region VE. It is formed and configured. The discharge duct 129 is connected to the vacuum device 130. The vacuum device 130 is a mechanical device that sucks air and separates white line waste from the sucked air and exhausts it. The vacuum device 130 is provided on a cart (not shown) separate from the moving table 123. That is, the discharge duct 129 and the vacuum device 130 correspond to the vacuum means according to the present invention.

  Further, tensioners 131 are respectively provided below the flat belts 110 and 116 on the mounting plate 124 of the movable table 123. The tensioner 131 is an instrument for applying tension to the flat belts 110 and 116 to prevent slack. Further, the mounting plate 124 is covered with an outer casing 132. The outer casing 132 is a casing that covers the placement plate 124, and is configured by forming a stainless material into a box shape by sheet metal processing. A control box 133 is provided behind the road surface fountain mold removing device 100 in the outer casing 132.

  The control box 133 is a steel plate containing box that houses the control unit 140 that controls the operation of the road surface fountain removing device 100, and is fixedly mounted on the outer casing 132 provided on the moving table 123. ing. The control unit 140 includes a microcomputer including a CPU, a ROM, a RAM, and the like, and controls each operation of the rotation drive motor 112, the swing drive motor 118, and the movement drive motor 127. Specifically, the control unit 140 executes a control program stored in advance in a storage device such as a ROM in response to an operation of an operation switch 141 described later, thereby rotating the rotation driving motor 112, the swing driving motor 118, and The start and stop of each operation of the movement drive motor 127 is controlled.

  Further, the operation switch 141 and the display device 142 are respectively exposed on the outer surface of the control box 133 toward the rear of the road surface fountain mold removing device 100. The operation switch 141 is an input device for inputting an operator's instruction to the control unit 140, and starts and stops each operation of the rotation drive motor 112, the swing drive motor 118, and the movement drive motor 127. Are constituted by push buttons for instructing each of them. The display device 142 is a liquid crystal display screen for displaying the operating state of the control unit 140. The control box 133 also includes a power supply unit (not shown) for supplying power introduced from an external power source to the rotation drive motor 112, the swing drive motor 118, and the movement drive motor 127, respectively. However, since these are not directly related to the present invention, the description thereof is omitted.

(Operation of road surface fountain mold removing device 100)
Next, the operation of the road surface fountain type removing apparatus 100 configured as described above will be described. First, the operator prepares the road surface fountain mold removing device 100, the high-pressure water pump 102, and the vacuum device 130, and connects them together. Next, the worker activates the control unit 140 by turning on a power switch (not shown) in the road surface fountain mold removing device 100. Thereby, the control part 140 will be in the standby state which waits for the instruction | indication from an operator via an action | operation by executing the control program previously memorize | stored in memory | storage devices, such as ROM.

  Next, the worker starts removing white lines L on the road surface G. Specifically, the operator moves the road surface fountain mold removing device 100 onto the white line L to be removed by manually pushing the moving body 123. Next, the operator adjusts the length of the inner skirt 120. In this case, the operator adjusts the length of the inner skirt 120 according to the suction environment in the inner skirt 120 and the outer skirt 128.

  Specifically, when the worker leaks mist-like water jetted toward the road surface G and the removed white line debris to the outside of the outer skirt 128 (for example, when the white line debris is powdery), the inner skirt 120 The movable side inner skirt 120b is lowered. On the other hand, when the particle diameter of the removed white wire scrap is relatively large, the operator raises the movable side inner skirt 120b of the inner skirt 120 to raise the movable surface skirt 120b, thereby injecting the high pressure water from the ejector 101. The exhaust duct 129 is exposed to G (see FIG. 4). That is, the operator adjusts the amount of the gap constituting the orifice portion Or by adjusting the length of the inner skirt 120. In this case, the orifice portion Or is adjusted so that the area of the opening to the injection region JE is in the range of 0.8 to 1.5 times the opening area where the discharge duct 129 opens to the vacuum region VE. . The length of the inner skirt 120 can be adjusted by inclining the moving body 123.

Next, the operator operates the operation switch 141 to instruct the control unit 141 to start each operation of the rotation drive motor 112, the swing drive motor 118, and the movement drive motor 127. As a result, the road surface fountain mold removing device 100 rotationally displaces the ejector 101 around the rotation center O ₁ of the rotation pulley 106 as well as the rotation center O ₁ of the swing pulley 114. _The front wheel 126a is rotationally driven while being further rotationally displaced about ₂ as the rotation center to start advancing (left side in FIG. 1) (see the arrow in the figure).

  Next, the operator activates the high pressure water supply pump 102 and the vacuum device 130 by turning on power switches (not shown). As a result, the road surface fountain mold removing device 100 starts high-pressure water injection from the fountain nozzle 104 of the injection body 101, and starts suction of air in the inner skirt 120 and the outer skirt 128 through the discharge duct 129. The

In this case, the rotation center _{O 2} of the rotation center _{O 1} and the swing pulley 114 of the rotary pulley 106 are different from each other. For this reason, the road surface fountain mold removing device 100 intersects the moving direction of the ejector 101 with the ejector 101 that moves circularly by the rotational drive of the rotating pulley 106 when the ejector 101 moves forward (this embodiment). It can be swung in a direction orthogonal to the form). More specifically, as shown in FIG. 5, the road surface fountain mold removing device 100 includes both ends 151 a and 151 b in the width direction of a circular fountain track 150 in the jet body 101, in other words, a fountain in the fountain track 150. The portion of the track that is nearly parallel to the moving direction of the entire track 150 (see the arrow in the figure) is swung in the width direction of the road surface fountain mold removing device 100 as the road surface fountain type removing device 100 moves.

  As a result, the road surface fountain mold removing device 100 is prevented from moving in parallel with the moving direction of the road surface fountain mold removing device 100 at both ends 151a and 151b in the width direction of the circular fountain track 150. It is possible to prevent the high-pressure water jetted from the water from being applied to a specific place on the road surface G for a relatively long time. Therefore, the fountain mold removing device 100 for road surface can uniformly remove the white line L on the road surface G without unevenness by the high-pressure water jetted from the jet body 101.

  On the other hand, each of the inner regions of the inner skirt 120 and the outer skirt 128 in the road surface fountain type removing device 100 is sucked through the discharge duct 129 and also through an air introduction hole 106 b formed in the rotating pulley 106. Outside air is introduced. For this reason, the water jetted from the jet body 101 and the white line scraps peeled off from the road surface G are sucked through the discharge duct 129. In this case, water and white line debris in the ejector region JE, which is the inner side of the inner skirt 120, pass through the inner skirt 120 via an orifice portion Or formed by a gap provided between the lower end portion of the inner skirt 120 and the road surface G. And the outer vacuum skirt 128 lead to a ring-shaped vacuum region VE.

  In this case, the orifice portion Or is adjusted so that the area of the opening to the injection region JE is in the range of 0.8 to 1.5 times the opening area where the discharge duct 129 opens to the vacuum region VE. Yes. The orifice portion Or provided between the lower end portion of the inner skirt 120 and the road surface G is formed wider than the gap between the lower end portion of the outer cover 128 and the road surface G. Accordingly, the fountain mold removing device 100 for road surface effectively removes the water sprayed and scattered on the road surface G and the white line scraps peeled off from the road surface G through the gap between the lower end portion of the inner skirt 120 and the road surface G. In addition to being guided to the vacuum region E, water and white line debris guided to the vacuum region VE inside the outer skirt 128 can be effectively sucked and collected while preventing leakage to the outside of the outer skirt 128. During the removal of the white line L from the road surface G, the inner skirt 120 is also rotationally driven by the rotational driving of the swing pulley 114.

  The sucked material composed of air, water, and white line waste sucked through the discharge duct 129 is separated from each other via a filter (not shown), and water and white line waste are collected separately. In this case, the road surface fountain mold removing device 100 uses the collected water for the removal of the white line L again. That is, the worker can continuously remove the white line L while moving the fountain mold removing device 100 for a road surface. When finishing the removal of the white line L, the operator turns off the power switch (not shown) in the high-pressure water pump 102 and the vacuum device 130 to stop the operation, and then operates the operation switch 141. Thus, the controller 140 is instructed to stop the operations of the rotation driving motor 112, the swing driving motor 118, and the movement driving motor 127. As a result, the operator stops the operations of the rotation drive motor 112, the swing drive motor 118, the movement drive motor 127, the high-pressure water supply pump 102, and the vacuum device 130 in the road surface fountain mold removing device 100, and the white line The removal operation of L can be completed.

  As can be understood from the above description of operation, according to the first embodiment, the outer skirt 128 surrounds the periphery of the spray body 101 that injects water toward the road surface G, and the inner skirt 120 has the inner side of the outer skirt 128. Are divided into an ejector region JE where the ejector 101 is present and a vacuum region VE where the discharge duct 129 is opened. As a result, the fountain mold removing device 100 for road surface passes through the orifice portion Or to the vacuum region VE in which the water and white line waste existing in the ejector region JE partitioned in the outer skirt 128 are partitioned in the outer skirt 128. Collected by suction. For this reason, the fountain type removal apparatus 100 for road surfaces can collect | recover the white line waste removed from the water sprayed from the road surface and the road surface efficiently compared with the conventional fountain type removal apparatus for road surfaces. As a result, the road surface fountain mold removing device 1000 can realize a reduction in size and cost of the device configuration.

(Second Embodiment)
Next, a second embodiment of the road surface fountain mold removing device according to the present invention will be described with reference to the drawings. FIG. 6 is a partially broken side view showing the outline of the external configuration of the road surface fountain mold removing device 200 according to the present invention. FIG. 7 is a partially cutaway plan view schematically showing the main part of the external configuration of the road surface fountain mold removing device 200 shown in FIG. 6. In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted as appropriate. The road surface fountain mold removing device 200 according to the second embodiment has a road surface fountain mold according to the first embodiment in that the rotating pulley 106 is linearly reciprocated in the width direction of the road surface fountain mold removing device 200. Different from the removal device 100.

(Configuration of road surface fountain mold removing device 200)
Specifically, in the road surface fountain mold removing device 200, the rotating pulley 106 is supported by the swinging base 161 via the bearing 109 in a rotatable state. The swing base 161 is a member that supports the rotation pulley 106 so that the rotation pulley 106 can reciprocate in the width direction orthogonal to the traveling direction of the road surface fountain mold removing device 200 in a state where the rotation displacement of the rotation pulley 106 is allowed. The material is formed in a rectangular tube shape in plan view. In this case, the through-hole formed in the central portion of the swinging base 161 is sized so that the ejector 101 and the weight 108 that are rotationally displaced by the rotational drive of the rotating pulley 106 can pass through, like the swinging pulley 114. It is formed in a circular shape.

  The rocking base 161 is provided with four rolling bearings 162 protruding from the outer peripheral portion, and is supported by the rolling rail 163 via the rolling bearings 162. The rolling bearing 162 is a mechanical element for reciprocating the swing base 161 in the width direction of the road surface fountain mold removing device 200, and is fitted in the rolling rail 163 in a rollable state. The rolling rail 163 is a track member for rolling and displacing the rolling bearing 162 in the width direction of the road surface fountain mold removing device 200, and a stainless steel material is formed in a U-shaped cross section.

  The rolling rails 163 are respectively fixed at positions around the rolling base 161 on the mounting plate 124 of the moving body 123 and corresponding to the rolling bearings 162. An inner skirt 120 is attached to the back surface of the mounting plate 124. That is, in the second embodiment, the inner skirt 120 is fixed to the mounting plate 124, and thus does not move during the white line L removal operation.

  Further, a swinging mechanism 165 is connected to an outer peripheral portion of the swinging base 161 via a connecting piece 164 protruding toward the rear (right side in the drawing) of the road surface fountain mold removing device 200. The swing mechanism 165 is a member group that swings the swing base 161 in the width direction of the road surface fountain mold removing device 200, and mainly includes an eccentric piece 166, a swing bar 167, and a support column 168. The eccentric piece 166 is a plate body that is connected to the rotational drive shaft of the swing drive motor 118 and extends radially outward of the rotational drive shaft.

  On the other hand, the swing bar 167 is an aluminum plate-like member for connecting the swing base 161 and the swing drive motor 118 to each other, and is a support column 168 that stands on the mounting plate 124 of the moving body 123. Is supported in a freely rotatable state. At both ends of the swing bar 167, through holes having long holes are formed, and connected to the connecting piece 164 of the swing base 161 and the swing drive motor 118 through these long holes. The eccentric pieces 166 are rotatably connected to each other.

(Operation of road surface fountain mold removing device 200)
During the removal operation of the white line L by the road surface fountain type removing device 200 configured as described above, the rotating pulley 106 that rotates in a state where the high pressure water is jetted from the jet body 101 is swung. Specifically, the operator starts the operation of the swing drive motor 118 via the control unit 141 by operating the operation switch 141 in a state where the high pressure water is jetted from the jet body 101. As a result, the road surface fountain mold removing device 200 is reciprocally displaced on an arc track extending in the width direction of the road surface fountain type removing apparatus 200 with the swinging rod 167 as the center of rotation as shown in FIG. By doing so, the swing base 161 can be reciprocally displaced in the same width direction.

  In other words, the road surface fountain mold removing device 200 intersects the moving direction of the ejector 101 with the ejector 101 that moves circularly by the rotational drive of the rotating pulley 106 when the ejector 101 moves forward (see the illustrated arrow). It can be swung in a direction (in the present embodiment, an orthogonal direction). More specifically, as shown in FIG. 8, the road surface fountain mold removing device 200 includes both ends 151 a and 151 b in the width direction of a circular fountain track 150 in the jet body 101, in other words, a fountain in the fountain track 150. A track portion that is nearly parallel to the moving direction of the entire track 150 (see the arrow in the drawing) is swung in the width direction of the road surface fountain mold removing device 100 as the road surface fountain mold removing device 200 moves.

  As a result, the road surface fountain mold removing device 200 is prevented from moving in parallel with the moving direction of the road surface fountain mold removing device 200 at both ends 151a, 151b in the width direction of the circular fountain track 150. It is possible to prevent the high-pressure water jetted from the water from being applied to a specific place on the road surface G for a relatively long time. Accordingly, the road surface fountain mold removing device 200 can uniformly remove the white line L on the road surface G evenly with the high-pressure water ejected from the ejector 101.

  As can be understood from the above description of the operation, according to the second embodiment, the road surface fountain mold removing device 200 displaces the spray body 101 when the water sprayed from the spray body 101 is displaced in a circular shape. It is comprised so that it may rock | fluctuate in the direction which cross | intersects with respect to the moving direction. Therefore, the road surface fountain mold removing device 200 moves while the fountain trajectory 150, which is a circular trajectory of the jetted water, is displaced in a direction (for example, an orthogonal direction) intersecting the moving direction of the entire fountain trajectory 150. become. As a result, the road surface fountain mold removing device 200 is configured so that the width direction both ends 151a and 151b, which are trajectory portions in the direction intersecting the moving direction of the fountain trajectory 150 in the circular fountain trajectory 150, more specifically, the fountain trajectory. Since the track portion that is nearly parallel to the moving direction is prevented from being located at a specific position on the road surface for a relatively long time compared to other drive portions, the occurrence of unevenness in the removal amount of the white line L is suppressed. Thus, the white line L can be removed accurately and uniformly.

  Further, the implementation of the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the object of the present invention. In the drawings referred to in the following description of the modified examples, the same reference numerals are given to the same parts as those in the above-described embodiments, and the description thereof is omitted as appropriate.

  For example, in each of the above-described embodiments, the high-pressure water ejected from the ejector 101 is configured to displace on the circular track 150 when the ejector 101 is rotationally driven by the rotation pulley 106. That is, the rotation pulley 106, the rotation drive pulley 111, and the rotation drive motor 112 in each of the above embodiments correspond to the ejection direction displacement means. However, the spray direction displacing means is not necessarily limited to the above-described embodiment as long as the spray direction of the water sprayed from the spray body 101 is displaced by the circular track 150. For example, the jet direction displacement means may change the fountain direction by holding the fountain nozzle 104 rotatably on the jet body 101 and holding the road surface fountain mold removing devices 100 and 200 movably or fixedly. it can. In this case, the high-pressure water trajectory 150 ejected from the ejector 101 includes an ellipse in addition to a circle.

Further, in each of the above embodiments, the ejector 101 is held by the ejector holder 105 so as to incline outward in the downward direction in the figure. However, the injection body 101 should just be hold | maintained so that high pressure water may be injected toward the road surface G, and is not necessarily limited to the said embodiment. That is, the ejector 101 may be held in a posture in which high-pressure water is ejected at an inclination angle (for example, 5 ° or 20 °) other than 10 ° in each of the above embodiments,
It may be held in a posture orthogonal to the road surface G. In addition, the road surface fountain mold removing devices 100 and 200 prepare the injector body 105 for each inclination angle by preparing the injector holder 105 in accordance with the angle at which the injector 101 is inclined in advance. It is possible to easily change the fountain spray angle by changing to.

  Further, in each of the above embodiments, the ejector 101 is configured to move on the road surface G by the moving body 123 on which the movement driving motor 127 is mounted. That is, the road surface fountain mold removing devices 100 and 200 in the above embodiments are self-propelled. In this case, the moving body 123 and the movement driving motor 127 in each of the above embodiments correspond to the ejector moving means. However, the spray body moving means is not necessarily limited to the above embodiments as long as the spray body 101 can be moved along the road surface G. For example, the ejector moving means can be configured as a hand-drawn cart by omitting the movement drive motor 127 from the moving body 123 in each of the above embodiments. In addition, the ejector moving means may be configured to include a driving body configured separately from the moving body 123 and connected to the moving body 123, for example, an automobile.

  In this way, when the injector moving means includes a self-propelled vehicle such as an automobile, the injector swinging means for swinging the injector 101 can be provided on the self-propelled vehicle side. For example, the swing drive pulley 117 and swing drive motor 118 in the first embodiment and the eccentric piece 166, swing bar 167 and swing drive motor 118 in the second embodiment are arranged on the self-propelled vehicle side. Can be provided.

  Further, in each of the above-described embodiments, the moving body 123 includes three wheels including two front wheels 126a and one rear wheel 126b. Thereby, since the moving body 123 supports the injection body 101 with respect to the road surface G at what is called three points, even if the road surface G has an unevenness | corrugation, the injection body 101 can always be moved stably. However, the moving body 123 is not necessarily limited to the above embodiment as long as the ejector 101 can be moved on the road surface G. That is, the moving body 123 may be configured to include four or more wheels, or may be configured to include an endless track instead of or in addition to the wheels.

  In the first embodiment, the ejector 101 is swung by the swinging pulley 114, the flat belt 116, the swinging driving pulley 117, the swinging driving motor 118, and the pulley holder 122. In the second embodiment, the ejector 101 is swung by the rocking base 161, the rolling bearing 162, the rolling rail 163, the connecting piece 164, and the rocking mechanism 165. That is, in the first embodiment, the swinging pulley 114, the flat belt 116, the swinging drive pulley 117, the swinging drive motor 118, and the pulley holder 122 correspond to the ejector swinging means. In the second embodiment, The swinging base 161, the rolling bearing 162, the rolling rail 163, the connecting piece 164, and the swinging mechanism 165 correspond to the ejector swinging means. However, if these ejector swinging means are configured to displace the ejector 101 in a direction orthogonal to the moving direction of the ejector 101 along the white line L on the road surface G, the above-described embodiments are not necessarily required. It is not limited.

  Further, in each of the above embodiments, the orifice portion Or is provided between the lower end portion of the inner skirt 120 and the road surface G. However, the orifice portion Or is not necessarily limited to the above-described embodiments as long as it forms a flow path that becomes a jet flow in which the air in the ejector region JE flows vigorously toward the vacuum region VE. Therefore, for example, the orifice portion Or can be configured by forming a through hole in the wall surface of the inner skirt 120 in a state where the lower end portion of the inner skirt 120 and the road surface G are in contact or non-contact. Further, the opening area of the orifice portion Or is preferably 1.5 times or less the opening area where the discharge duct 129 opens to the vacuum region VE, but is not limited to this. It may be 5 times or more.

  Further, in each of the above embodiments, the rotation pulley 106 is provided with the air introduction hole 106 b including eight through holes, and the outside air is introduced into the inner skirt 120. That is, the rotation pulley 106 corresponds to the ejector holding means according to the present invention, and the air introduction hole 106 corresponds to the air introduction means according to the present invention. However, the air introduction means 106 is not necessarily limited to the above embodiments as long as air can be introduced into the inner skirt 120. For example, the air introduction means can be configured by an air compressor that forcibly feeds air into the ejector region JE. Further, the air introducing means can be configured by forming a through hole in the ejector holder 105. In this case, the ejector holding body 105 corresponds to the ejector holding means according to the present invention.

  Further, in each of the above embodiments, the outer skirt 128 is provided in a state where the lower end portion is separated from the road surface G. However, the outer skirt 128 may be configured to contact the road surface G via a brush or a flexible spatula at the lower end. According to this, since the air-tightness in the outer skirt 128 is enhanced, the fountain mold removing devices 100 and 200 for road surface can effectively suck water sprayed onto the road surface G and white line debris peeled off from the road surface G. . Further, the outer skirt 128 can be configured to be extendable and contractable with respect to the road surface G, similarly to the inner skirt 120.

  In each of the above embodiments, the inner skirt 120 is fixed to the swinging pulley 114 by the fixed-side inner skirt 120a and the fixed-side inner skirt 120a by two fixing bolts 121 outside the fixed-side inner skirt 120a. The movable side inner skirt 120a is attached so as to be displaceable in the axial direction. However, the inner skirt 120 is not limited to the above-described embodiments as long as it is formed in a cylindrical shape and surrounds at least the portion of the road surface G where water is injected. For example, like the outer skirt 128, the inner skirt 120 may be configured not to be stretchable / contracted by one material, that is, to have a fixed length with respect to the road surface.

  Further, in each of the above embodiments, by arranging the cylindrical inner skirt 120 inside the outer skirt 128, the ejector region VE where the ejector 101 exists is formed in a columnar shape, and the discharge duct 129 is opened. The vacuum region VE to be formed was formed in a ring shape. However, in the injection region JE and the vacuum region VE, the injection region JE includes the injection body 101 in the inner region of the outer skirt 128, the vacuum region VE communicates with the vacuum device 130, and both are connected via the orifice portion Or. As long as it communicates, it is not necessarily limited to the above embodiment. Therefore, the road surface fountain mold removing devices 100 and 200 are, for example, as shown in FIG. 9, in the rectangular outer skirt 128, the rectangular plate is behind the propellant 101 in the traveling direction (see the arrow in the figure). An inner skirt 120 having a shape can be arranged. Further, for example, as shown in FIG. 10, the road surface fountain mold removing devices 100 and 200 are substantially U on the rear side in the traveling direction (see the arrow in the drawing) with respect to the ejector 101 in the rectangular outer skirt 128. A character-shaped inner skirt 120 may be arranged.

  Further, in each of the above embodiments, the vacuum region VE is formed including the rear side in the traveling direction of the road surface fountain mold removing devices 100 and 200 with respect to the injector 101. Thereby, the fountain mold removing devices 100 and 200 for the road surface can suck water and white line waste more efficiently than disposing the vacuum region VE on the front side in the traveling direction with respect to the ejector 101. However, the formation position of the vacuum region VE is not limited to the above embodiments. In other words, the vacuum region VE can be formed only on the front side, the side and the rear side in the traveling direction of the road surface fountain mold removing devices 100 and 200 with respect to the jet body 101, or a combination thereof.

  Moreover, in each said embodiment, the fountain type removal apparatuses 100 and 200 for road surfaces used the white line L on the road surface G as a to-be-examined object. However, the road surface fountain mold removing devices 100 and 200 can remove other than the white line L on the road surface G, for example, various deposits such as paint, foreign matter, and dirt as objects to be removed. Further, the road surface fountain type removing devices 100 and 200 can also remove the surface of the road surface G itself as an object to be removed. That is, the road surface fountain mold removing devices 100 and 200 can also be implemented as a deposit removing device, a chipping device, and / or a roughing device for the road surface G.

G ... road surface, L ... white line, O ₁ ... rotation center of rotation pulley, O ₂ ... rotation center of swing pulley, JE ... injection region, VE ... vacuum region, Or ... orifice part,
90, 150 ... fountain orbit, 91a, 91b, 151a, 151b ... both ends in the width direction,
DESCRIPTION OF SYMBOLS 100,200 ... Road surface fountain type removal apparatus, 101 ... Injection body, 102 ... High pressure water supply pump, 103 ... Water supply hose, 104 ... Fountain nozzle, 105 ... Injection body holding body, 106 ... Rotation pulley, 106a ... Fitting hole 106b, air introduction hole, 107, weight holder, 108, weight, 109, bearing, 110, flat belt, 111, pulley for rotation drive, 112, motor for rotation drive, 113, support base,
114: Swing pulley, 115 ... Bearing, 116 ... Flat belt, 117 ... Swing drive pulley, 118 ... Swing drive motor, 119 ... Collar, 120 ... Inner skirt, 120a ... Fixed side inner skirt, 120b ... Movable Side skirt 121, fixing bolt 122, pulley holder,
123: moving body, 124: mounting plate, 125 ... gripping rod, 126a ... front wheel, 126b ... rear wheel, 127 ... motor for movement drive, 128 ... outer skirt,
129 ... Discharge duct, 130 ... Vacuum device, 131 ... Tensioner, 132 ... Outer casing, 133 ... Control box,
140 ... control unit, 141 ... operation switch, 142 ... display device,
Reference numeral 161: swing base, 162: rolling bearing, 163: rolling rail, 164: coupling piece, 165: swing mechanism, 166: eccentric piece, 167: swing bar, 168: support column.

Claims (8)

A fountain type removing device for road surface that jets and removes water on an object to be removed on the road surface,
An injector that is disposed opposite to the road surface and injects water toward the road surface;
An outer skirt that is formed in a cylindrical shape and surrounds at least a portion of the road surface on which the water is injected;
Vacuum means connected to the outer skirt for generating negative pressure in the inner region of the outer skirt;
An inner skirt that divides an inner region of the outer skirt into an injector region where the injector exists and a vacuum region communicating with the vacuum means in a state where the injector region communicates with the injector region via an orifice;
A road surface fountain mold removing device comprising air introducing means for introducing air into the ejector region. The road surface fountain mold removing device according to claim 1,
The orifice part is
The road surface fountain mold removing device is formed by a gap between a lower end portion of the inner skirt and the road surface. The road surface fountain mold removing device according to claim 2,
The outer skirt is
A road surface fountain mold removing device, wherein a lower end portion is located through a gap narrower than a gap formed between the inner skirt and the road surface with respect to the road surface. In the fountain type removal apparatus for road surfaces according to any one of claims 1 to 3,
The orifice part is
The road surface fountain mold removing device according to claim 1, wherein an area of a portion where the vacuum region communicates with the ejector region is 1.5 times or less of an area where the vacuum means communicates with the vacuum region. The road surface fountain type removing device according to any one of claims 1 to 4,
The road surface fountain-type removing device is characterized in that the vacuum region is formed so as to include a rear side in the traveling direction of the road surface fountain-type removing device with respect to the ejector. In the fountain type removing apparatus for road surface according to any one of claims 1 to 5,
An injector holding means for holding the injector is provided above the injector region;
The air introducing means includes
A road surface fountain mold removing device comprising a through hole provided in the ejector holding means in communication with the ejector region and introducing outside air into the ejector region. In the fountain type removing device for a road surface according to any one of claims 1 to 6,
A road surface fountain mold removing device characterized in that the inner skirt is extendable and contractible with respect to the road surface. The road surface fountain type removing device according to any one of claims 1 to 7, further comprising:
An ejector moving means for moving the ejector along the road surface;
The ejector moving means includes:
A fountain mold removing device for a road surface, comprising three wheels that roll on the road surface.

Images