JP2006307528A - Deposit elimination device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compact deposit elimination device of which the blast spraying recovery device securely follows distortion, a curvature, and unevenness of a floor, which does not generate a clearance between itself and the floor, and which has little sliding resistance to the floor. <P>SOLUTION: The blast spraying recovery device B of the deposit elimination device for eliminating a deposit F on the floor and a road surface is arranged at the front of a car body 6. The blast spraying recovery device B comprises a spraying device 4 and a vacuum recovery part 5. The spraying device 4 sprays a granular body 3 from a spray nozzle 1 with a gas flow 2, and the vacuum recovery part 5 recovers the granular body 3 sprayed from the spray nozzle 1 and the deposit F which is peeled and removed. Then the blast spraying recovery device B of the deposit elimination device is constituted integrally with the car body 6 with flexible up-and-down movement and flexible right-and-left oscillation. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a deposit removing device that can easily and efficiently remove wax applied to a floor of a store or the like, dirt attached to the floor, or slip marks of a tire attached to a road surface. .

Patent Document 1 describes a deposit removal method that includes a blast injection recovery device in the abdomen of a vehicle body and removes deposits on a floor surface or road surface by a manual push operation.
Japanese Patent Laid-Open No. 2002-4234

These blast jet collection devices are dry-type deposit removal methods in which deposits are removed by jetting a fragment of a resin molded product together with a gas flow. Therefore, the crushed pieces must be reliably recovered in the blast injection recovery device, and the bottom surface of the blast injection recovery device must be firmly attached to the floor so as not to be scattered outward. A seal member such as a shaped member is configured to be deformable following the unevenness of the floor surface.
However, in the case of a blast injection recovery device provided at the abdomen of the vehicle body, if there is a rising surface such as a wall in the front, even if the front end of the vehicle body is brought into contact with the wall, a large amount of unattached matter remains and the work efficiency is poor. There was a problem. In addition, the blast jet recovery device that is long in the front and rear also requires the seal member to be in contact with the floor surface over a wide range, resulting in an increase in running resistance and the deformation between the seal member and the floor surface due to distortion, curvature, and unevenness of the floor surface. A gap was easily formed between them, and the resin molded product was scattered outward from this gap, and the follow-up to the floor surface was insufficient.
In the present invention, the blast jet recovery device reliably follows the distortion, curvature, and unevenness of the floor surface, no gap is formed between the floor surface, and the sliding resistance with the floor surface is small. It is an object of the present invention to provide a simple deposit removing device.

In the deposit removing device for removing the deposit F on the floor or the road surface, the spray device 4 for spraying the particles 3 together with the gas flow 2 from the spray nozzle 1, and the particles 3 ejected from the spray nozzle 1 and the particles 3 are peeled and removed. A blast injection recovery device B comprising a vacuum recovery unit 5 for recovering the attached matter F is disposed in front of the vehicle body 6, and the blast injection recovery device B can be moved up and down integrally with the vehicle body 6 and can be swung left and right. It is set as the structure of the deposit | attachment removal apparatus comprised so that it can move freely.
A pair of left and right grounding wheels 7 are pivotally supported at the lower part of the blast injection collecting device B, and the attached matter removing device enables the vertical fixing of the grounding wheels 7 to be adjusted.
Further, the blast injection recovery device B is formed in a front and rear thin box shape having a square shape in front view, and an injection nozzle 1 that swings left and right while injecting the particles 3 is provided inside the blast injection recovery device B. In addition, a deposit removing apparatus is provided in which a motor M that swings and drives the injection nozzle 1 by superposing the front and rear width A of the blast injection recovery apparatus B in a side view is provided.

In the invention described in claim 1, the spraying device 4 that sprays the particles 3 together with the gas flow 2 from the spray nozzle 1, the particles 3 sprayed from the spray nozzle 1, and the deposit F that has been peeled and removed are recovered. Since the blast injection recovery device B composed of the vacuum recovery unit 5 is arranged in front of the vehicle body 6, the blast injection recovery device B can be brought close to the wall in the traveling direction, and there are few deposits unremoved portions and efficiency. Good adhesion removal work.
In addition, since the blast injection recovery device B is configured to be vertically movable up and down integrally with the vehicle body 6 and swingable to the left and right, the bottom surface of the blast injection recovery device B is free from distortion, curvature, and unevenness of the floor surface. The grounding is surely followed, a gap with the floor surface is not formed, and the particles 3 are not scattered outside.

In the second aspect of the invention, a pair of left and right ground wheels 7 are pivotally supported at the lower portion of the blast injection recovery device B, and the ground wheels 7 can be adjusted and fixed in the vertical direction. Therefore, the grounding wheel 7 rolls along the distortion, curvature, and unevenness of the floor surface, and the distance between the blast injection recovery device B and the floor surface is always kept constant, and the bottom surface of the blast injection recovery device B is more faithful. It is possible to follow the ground contact with the floor shape.
Further, since the ground wheels 7 are provided in a pair of left and right, and each can be adjusted and fixed in the vertical direction, the ground pressure to the floor surface of the blast injection recovery apparatus B is adjusted by the degree of distortion and curvature of the floor surface. be able to. That is, when the floor surface is severely distorted or curved, the blast injection recovery device B is lowered by raising and adjusting the grounding wheel 7 to increase the grounding pressure with the floor surface. In this case, although the sliding resistance is increased, a gap between the bottom surface of the blast jet recovery apparatus B and the floor surface is not formed, and the external scattering of the particles 3 can be reliably prevented. On the other hand, if the floor surface is almost free from distortion and curvature, the blast jet recovery device B can be raised by lowering the grounding wheel 7 to adjust the sliding resistance with the floor surface. , Efficient deposit removal work can be performed.

  In the invention according to claim 3, the blast jet recovery device B is formed in a front and rear thin box shape having a quadrangle in front view, and the jet nozzle 1 that swings left and right while jetting the particles 3 is provided inside the blast jet recovery device B. Since the motor M for swinging and driving the injection nozzle 1 is arranged above the blast injection recovery device B and in the front-rear width A of the blast injection recovery device B as viewed from the side, The entire front and rear width of the blast jet recovery apparatus B that can swing right and left can be made thin and compact, and the size can be reduced. Therefore, the contact area with the floor surface of the blast jet recovery apparatus B can be reduced, and the sliding resistance with the floor surface is small.

Next, an embodiment of the present invention will be described based on the drawings with an example of floor wax peeling operation. FIG. 2 shows the operation principle of the floor wax peeling apparatus using the present invention, and the structure thereof will be described together with FIG. A front wheel 10 for self-propelled driving and a rear wheel 11 with a caster angle for turning are provided below a lower frame 12 having a rectangular frame shape in plan view of the vehicle body 6, and upper ends of four columns 13 standing upward from the lower frame 12. The upper frame 14 having substantially the same shape as that of the lower frame 12 is provided, and the lower frame 12, the support 13, and the upper frame 14 form a strong box-shaped vehicle body 6. The front wheel 10 is driven through a chain 21 by a motor M attached to the lower frame 12. A handle 44 that protrudes rearward is provided at the rear end portion of the upper frame 14, and the operator grips the handle 44 and performs wax peeling work while walking behind the vehicle body 6.
An electromagnetic clutch capable of continuing driving to the left and right front wheels 10 is provided in the drive system path between the motor M and the front wheels 10. This electromagnetic clutch is for enabling the left and right front wheels 10 to roll freely when turning or changing the direction of the floor wax peeling device. The operator pushes and pulls the handle 44 to add a caster angle. By changing the direction of the rear wheel 11, it can be easily routed with a light force.
At the front lower side of the vehicle body 6, a blast injection recovery device B capable of peeling and removing the floor wax is projected forward, the blast injection recovery device B is grounded, and the particles 3 are removed from the injection nozzle 1 provided inside. The floor wax can be peeled off or removed by running along with the gas flow 2 while causing it to collide with the floor surface.
The granule 3 of the floor wax peeling apparatus of the present invention is a resin bead J obtained by granulating resinous coarse fragments into a predetermined size, and the gas flow 2 is supplied from a separate compressor C by an air hose 19. By injecting the compressed air 2, the resin beads J are sucked by the nozzle effect, and the compressed air 2 and the resin beads J are injected from the injection nozzle 1.

A granule tank 15 is disposed at the front of the vehicle body 6, and resin beads J are supplied from the lower part of the granule tank 15 to the injection device 4 of the blast injection recovery device B. Further, the blast jet recovery device B is provided with a vacuum recovery unit 5 for collecting the injected resin beads J and the wax particles W separated or removed by the jetting collision. The grains W are collected again into the granule tank 15. The granule tank 15 is provided with a net-like separation plate 16 capable of separating the resin beads J and the separated wax particles W, and the reusable resin beads J fall below the separation plate 16 and become dust. The resin beads J that cannot be reused and the wax particles W that have been peeled off are sucked into the vacuum device 17 provided at the rear of the particle tank 15, and the dust box 18 provided at the lower end of the vacuum device 17 and capable of being pulled out rearward. Accumulated in. Reference numeral 51 denotes a front cover that covers the blast injection recovery apparatus B, and reference numeral 52 denotes a side cover of the vehicle body 6.
A fan 22 is provided on the upper portion of the vacuum device 17, and the air in the vacuum chamber 20 is sucked through the filter D and discharged to the outside. The vacuum chamber 20 and the particle tank 15 are in communication with each other. When the inside of the vacuum chamber 20 becomes negative pressure, the inside of the particle tank 15 also becomes negative pressure, and the resin beads J and the wax particles W are discharged from the blast jet recovery device B. Is sucked upward of the granule tank 15. At that time, the reusable resin beads J fall downward by the separation plate 29 and are again sprayed from the spray nozzle 1. Further, the finely divided resin beads J and wax particles W that cannot be reused are not dropped because they are light in mass, and are sucked to the vacuum chamber 20 side.

  The vacuum fan 22, the self-propelled motor M, and the electrical control unit of the floor wax peeling machine are powered by AC 100 to 110 V for general households, and each operation switch is provided on the upper frame 14. It can be done according to the kind. 23 is a power switch, 24 is a travel switch for turning on and off the motor M, 25 is a blast switch for turning on and off the injection of the resin beads J, and 26 is a filter by injecting compressed air from the inside of the filter D in the vacuum device 17. This is a cleaning switch that can eliminate the clogging of D. Reference numeral 27 denotes a travel speed adjusting volume, and 28 denotes an hour meter.

In front of the lower frame of the vehicle body 6, a pair of left and right injection devices 4 are provided inward, covered with a blast box 54 in a bottom open form, and compressed air 2 and resin beads J injected therein and separated wax particles. A blast injection recovery device B configured to be able to recover W is disposed, and the blast injection recovery device B is configured in a thin box shape that is inclined forward and downward when viewed from the side, so that a wax peeling operation having substantially the same width as the lateral width of the vehicle body 6 can be performed. Is possible. When the blast jet recovery device B is disposed in front of the vehicle body 6, it is possible to perform wax peeling as far as the wall in the work progressing direction, and efficient wax peeling work can be performed.
The blast jet recovery apparatus B can be moved up and down around the lifting fulcrum shaft 30 by manually operating the lifting lever 29 up and down. The elevating fulcrum shaft 30 is provided on an elevating base 31, and the elevating base 31 is pivotally supported 32 on a base swinging shaft protruding forward from the left and right central portion of the lower frame 12. Accordingly, the blast jet recovery device B is configured to be integrally movable up and down and swingable left and right. The blast injection recovery device B is lowered and grounded by its own weight. A brush-like brush 45 and an elastic sheet 46 are attached to the grounding portion of the blast jet recovery device B, and the brushes 45 and the elastic sheet 46 are grounded for fine irregularities on the floor surface, and the injected resin beads In this configuration, J does not scatter from the blast injection recovery device B to the outside. A pair of left and right rollable grounding wheels 7 are provided at the lower rear of the blast injection recovery device B. The grounding wheel 7 can adjust the grounding wheel 7 in the vertical direction by turning the bolt 33, that is, the grounding condition of the bottom surface of the blast injection recovery device B when the grounding wheel 7 is grounded can be adjusted. The bolt 34 is a lock bolt that prevents the position of the bolt 34 from changing after the grounding wheel 7 is adjusted.

Thus, since the blast injection recovery device B can be moved up and down integrally with the vehicle body 6 and can be swung left and right, the bottom surface of the blast injection recovery device B is deformed, curved, or uneven on the floor surface. On the other hand, the grounding is surely followed, a gap with the floor surface is not formed, and the resin beads J and the wax particles W are not scattered outside.
Further, the grounding wheel 7 can always keep the distance between the bottom surface of the blast injection recovery device B and the floor surface, and can make the blast injection recovery device B bottom surface faithfully follow the ground according to the shape of the floor surface. Furthermore, since the grounding wheel 7 is configured to be adjustable in the vertical direction, it is possible to adjust the grounding pressure at the bottom surface of the blast injection recovery device B according to the floor surface state.

Above the blast injection recovery device B, a drive motor KM for driving the injection device 4 to the left and right is attached to the motor base 48, and the drive motor KM is superposed on the longitudinal width A of the blast injection recovery device B in a side view. Arranged.
Thereby, the front-rear width A1 of the entire blast injection recovery apparatus B can be configured to be thin and compact, and the blast injection recovery apparatus B can be downsized. The output shaft of the drive motor KM is attached rearward, and the drive is transmitted in the order of the drive arm 35, the intermediate arm 36, the slide plate 37, the swing shaft arm 38, and the swing shaft 39. Projected into device B. In this configuration, the pair of left and right injection devices 4 can be swung by a single drive motor KM. The pair of left and right injection devices 4 are connected so that when one injection device 4 swings to the right, the other injection device swings to the right. Each rotating part is provided with a bearing (not shown), and the injection device 4 can be swung left and right with a light driving force. A nozzle arm 40 having the injection nozzle 1 attached to the lower end is fixed to the front end of the swing shaft 39, and a resin bead J supply hose 41 using a flexible resin material or vinyl material and a compressed air 2 at the middle portion thereof. A supply hose 42 is connected.
The pair of left and right resin bead J supply hoses 41 are inserted into the blast injection recovery device B from the inner position in the vicinity of the swing shaft 39 on the upper surface of the blast injection recovery device B. 4 is connected to the middle part. The supply hose 41 is of a transparent type so that the resin beads J can be seen flowing.
On the other hand, the supply hose 42 for the compressed air 2 is inserted into the blast injection recovery device B from the outer position near the rocking shaft 39 on the upper surface of the blast injection recovery device B, wound in the shape of a letter, and then the injection device 4 Connected to the middle part.

  By winding the supply hoses 41 and 42 in a square shape and arranging them, the supply hoses 41 and 42 are not burdened even if the jet nozzle 1 below the rocking shaft 39 is swung left and right. Therefore, the durability of the supply hoses 41 and 42 can be improved. Further, the supply hose 41 wound in the shape of a letter toward the pair of left and right injection devices 4, 4 is connected to the inner ends of the supply hoses 41, 41 by a holder 43. The holder 43 is formed of a member having flexibility larger than the diameter of the supply hose 41, and the supply hose 41 is provided on the inner front surface or the inner rear surface of the blast injection recovery device B as the injection device 4 swings left and right. Even if the arrangement is such that the holder 43 comes into contact with the supply hose 41, the holder 43 comes in contact with the supply hose 41. The supply hoses 41 and 42 are preferably wound only once, and need not be wound a plurality of times.

Next, the filter D of the vacuum device 17 will be described. The filter D has a cylindrical shape having a large surface area due to the corrugated shape of the cross section, and the inside of the vacuum chamber 20 and the granule tank 15 is maintained at a negative pressure by sucking the air inside thereof with the fan 22. If the filter D is clogged, the suction force is insufficient and the suction performance from the blast jet recovery device B is deteriorated. Therefore, it is necessary to replace the filter D periodically. However, clogging of the filter D is a frequently occurring problem, and it is difficult to take out the filter D and clean it every time it occurs.
In the vicinity of the fan 22 of the vacuum device 17 of the present embodiment, there is provided an ejection port 47 for ejecting compressed air for cleaning. The compressed air is ejected from the inside of the filter D to remove dust adhering to the outer periphery of the filter D. Filter D performance can be recovered. In this filter D cleaning, when the cleaning switch 26 is turned ON, the filter backwash solenoid valve 50 is released, and a part of the air supplied from the compressor C can be injected into the filter D. Alternatively, it is performed after one day of peeling work. The filter D is a cartridge type and can be easily replaced by opening the filter cover 53 at the rear of the vacuum device 17.

The blast jet recovery apparatus B of the present invention is regulated so that the compressed air 2 is not jetted from the jet nozzle 1 when not in contact with the floor surface. The specific structure is provided with a detecting means K such as a limit switch for detecting the up-and-down ascending / descending state of the blast injection recovery apparatus B. When the detection means K detects the rise of the blast injection recovery apparatus B, the supply of the compressed air 2 is stopped. Automatically shut off. Further, even when the blast switch 25 is turned on even when the blast injection recovery device B is raised at the start of work, the ON operation of the blast switch 25 is invalidated, and the compressed air 2 is discharged from the injection nozzle 1. It is regulated not to be injected.
Further, even when the blast injection recovery device B is lowered and grounded, the injection of the compressed air 2 is restricted unless the blast switch 25 is turned on after the travel switch 24 is turned on. This is because if the peeling operation is performed at a fixed position while the vehicle body 6 is stopped, the wax may be excessively peeled and the floor tile itself may be damaged.

  FIG. 9 is a control flow chart for regulating the compressed air 2 and resin bead J injection conditions from the injection nozzle 1 in the floor wax peeling apparatus of this embodiment. In step S1, it is determined whether the power switch 23 is ON. If ON, the fan 22 of the vacuum device 17 is rotated to activate the vacuum recovery function. Next, when the travel switch 24 is turned ON, a determination of YES is made in step S2, the motor M mounted on the vehicle body 6 rotates according to the setting of the speed setting volume 27, and the vehicle body 6 starts traveling. From this state, if the blast switch 25 is ON in step S3, it is determined in step S4 whether or not the blast injection recovery device B is in contact with the floor, that is, whether or not the detection means K is in an undetected state. If it is determined that both step S3 and step S4 are YES, injection of the compressed air 2 and the resin beads J from the injection device 4 is started. In the present embodiment, the injection is not started unless both step S2 and step S4 are determined to be YES, that is, the injection is started when the vehicle is running and the blast injection recovery device B is not in contact with the floor. However, as long as at least the scattering of the resin beads J can be prevented, the restriction requirement that the injection is not performed during traveling may be released.

FIG. Overall operation principle diagram. Overall side view. Overall front view. Overall plan view. The cutaway side view of a blast injection collection device. The front view of an injection device drive part. The perspective view which shows the inside of a blast injection collection | recovery apparatus. The flowchart which shows control of injection.

Explanation of symbols

1 Injection nozzle 2 Gas flow (compressed air)
3 Granules 4 Injection device 5 Vacuum recovery unit 6 Car body 7 Ground wheel A Front / rear width B Blast injection recovery device F Deposit M Motor

Claims (3)

  In the deposit removal apparatus for removing deposits (F) on the floor or road surface, an injection device (4) for jetting the particles (3) together with the gas flow (2) from the injection nozzle (1), and the injection nozzle ( 1) A blast injection recovery device (B) composed of the particles (3) sprayed from (1) and the vacuum recovery part (5) for recovering the separated and removed deposits (F) is disposed in front of the vehicle body (6), A deposit removing device configured such that the blast jet recovery device (B) can be moved up and down integrally with the vehicle body (6) and can be swung left and right.   The pair of left and right ground wheels (7) are pivotally supported at the lower part of the blast jet recovery device (B) so as to be freely rotatable, and the ground wheels (7) can be adjusted and fixed in the vertical direction. Deposit removal device.   The blast injection recovery device (B) is formed in a front and rear thin box shape having a square shape in front view, and an injection nozzle (1) that swings left and right while injecting particles (3) is provided inside the blast injection recovery device. A motor (M) is disposed above the apparatus (B) and in a side view as viewed in a side view so as to cause the injection nozzle (1) to oscillate by being superposed on the longitudinal width (A) of the blast injection recovery apparatus (B). The deposit removing apparatus according to 1 or 2.

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