JP2021107064A - Injector - Google Patents

Abstract

To provide an injector capable of emitting a jet of injection material to a wall surface by a simple constitution.SOLUTION: A coating apparatus (1), which is an injector for emitting a jet of injection material to a wall surface (100), comprises: a carriage (50) that moves by obtaining thrust from a user; a nozzle (30) that is loaded on the carriage and that emits the jet of injection material; and a support (40) that holds the nozzle so that at least one of the height of the nozzle and an injection direction of the injection material can be changed.SELECTED DRAWING: Figure 1

Description

The present invention relates to an injection device that injects an injection object such as a liquid or particles onto an object.

Patent Document 1 discloses a robot for painting an outer wall having a simple structure, which is suspended from the upper part of the wall surface and paints the wall surface. The robot includes a main body suspended from the upper part of the wall surface so as to be able to move up and down, a fan that obtains thrust toward the wall surface, and two coating rollers. The outer wall is painted by rolling the main body against the wall while pressing the coating roller against the wall with a fan.

Japanese Unexamined Patent Publication No. 8-117654

However, the robot disclosed in Patent Document 1 is still not easy to configure, for example, for applications such as painting the outer wall of a general house, the installation time and effort is excessive.

One aspect of the present invention is to realize an injection device capable of injecting an injection object onto an object with a simpler configuration.

In order to solve the above problems, the injection device according to one aspect of the present invention is an injection device that injects an injection object onto an object, and includes a trolley that moves by being thrust by a user and the trolley. It is equipped with a nozzle for injecting the injected object and a nozzle holding mechanism for holding the nozzle so that at least one of the height of the nozzle and the injection direction of the injected object can be changed.

According to the above configuration, the user can move the injection device by applying thrust to the carriage. Further, in the injection device, at least one of the height of the nozzle and the injection direction of the injection material injected from the nozzle can be changed. By determining the height of the nozzle and / or the injection direction of the injection object and applying thrust to the carriage, the user can inject the injection object while moving the injection device with respect to the object. Therefore, it is possible to inject an ejector onto an object with a simple configuration.

Further, the injection device according to one aspect of the present invention detects fluctuations in at least one of the height of the nozzle and the injection direction of the injection object due to the swing of the carriage, and the nozzles in the direction opposite to the fluctuations. Further includes an actuator that changes at least one of the height of the injection and the injection direction of the injection.

According to the above configuration, when the actuator swings due to the movement of the injection device, the actuator moves in the direction opposite to the fluctuation of at least one of the nozzle height and the injection direction of the injected object due to the swing. , Change the height of the nozzle and / or the injection direction of the propellant. Therefore, even when the swing occurs due to the movement of the injection device, the injected object can be injected at a constant height and / or the injection direction.

Further, the injection device according to one aspect of the present invention further includes a connecting member for connecting the injection device to an external device and a support member for supporting the connection member, and the support member moves the carriage. In some cases, it is provided in a part different from the part on the front side.

According to the above configuration, the injection device is connected to the external device by a connecting member in a state of being supported by the supporting member. The support member is provided at a portion different from the portion on the front side when the carriage is moved. Therefore, the connecting member is connected to the injection device from a side different from the front side when the carriage is moved. Therefore, the possibility that the connecting member becomes an obstacle when the carriage is moved is reduced.

Further, the injection device according to one aspect of the present invention further includes an auxiliary thrust source that generates an auxiliary thrust so that the moving speed of the carriage becomes a desired speed.

According to the above configuration, the moving speed of the trolley becomes a desired speed due to the auxiliary thrust generated by the auxiliary thrust source. Therefore, it is possible to inject the ejected material to the object while moving at a substantially constant speed regardless of the user.

Further, the injection device according to one aspect of the present invention further includes a handle gripped by the user in order to apply the thrust to the carriage, and a portion of the handle gripped by the user's right hand, and a portion of the handle that is gripped by the user's right hand. Each of the parts gripped by the left hand of the user is provided with a switch for switching whether or not to operate the auxiliary thrust source, and the auxiliary thrust source is when at least one of the switches is turned on. Works on.

According to the above configuration, the user can operate the auxiliary thrust source by grasping the handle with at least one hand. Therefore, the time and effort required to operate the auxiliary thrust source is reduced.

Further, in the injection device according to one aspect of the present invention, as the handle, a first handle provided at a position of the carriage, which is on the rear side when the carriage is moved in the first direction, and the carriage are used as the first handle. It is provided with a second handle provided at a position of the dolly that is on the rear side when moving in a second direction different from the direction of 1.

According to the above configuration, the user can grip the handle corresponding to the direction in which the injection device is desired to be moved among the first handle and the second handle, and apply thrust to the carriage. Therefore, when the dolly is moved in the opposite direction, it is not necessary to invert the dolly, and the labor is reduced.

Further, the injection device according to one aspect of the present invention extends from the carriage toward the object, and is attached to an interval defining member that defines the distance between the injection device and the object and the tip of the interval defining member. A roller that is provided and comes into contact with the object is further provided.

According to the above configuration, the carriage can be moved while maintaining the distance between the injection device and the object at a constant distance defined by the length of the distance defining member.

Further, in the injection device according to one aspect of the present invention, the interval defining member extends from outside the moving range of the nozzle in the height direction of the injection device.

According to the above configuration, the possibility that the injection of the ejected material from the nozzle to the object is hindered by the interval defining member is reduced.

According to the injection device according to one aspect of the present invention, an injection object can be injected onto an object with a simple configuration.

It is a front view of the coating apparatus which concerns on Embodiment 1. FIG. It is the top view and the side view of the coating apparatus which concerns on Embodiment 1. FIG. It is a figure which shows the example which changes the spraying direction of a paint. It is a side view of the coating apparatus which concerns on Embodiment 2. FIG.

[Embodiment 1]
Hereinafter, one embodiment of the present invention will be described in detail.

FIG. 1 is a front view of the coating device 1 (injection device) according to the first embodiment. FIG. 2 is a top view and a side view of the coating device 1. In FIG. 2, the top view of the coating apparatus 1 is shown by reference numeral 2001, and the side view is shown by reference numeral 2002. As shown in FIGS. 1 and 2, the coating device 1 includes a tank 10, a booster 15, a compressor 20, a coating machine 25, a nozzle 30, a support column 40 (nozzle holding mechanism), a carriage 50, and an assist unit 55 (auxiliary thrust source). ), A handle 60, a connecting member 70, a support member 75, and an interval defining member 80. The painting device 1 is a device for painting the wall surface 100 (object) by injecting paint (jetting material) onto the wall surface 100 (object).

The tank 10 is a container for holding the paint. In the first embodiment, the coating apparatus 1 includes two tanks 10. However, the coating apparatus 1 may include one or three or more tanks 10. Further, the coating device 1 does not necessarily have to include the tank 10, and may include a pedestal on which the paint can be placed together with the container (for example, an itto-kan). Alternatively, the coating device 1 may be configured to supply paint from the outside.

The booster 15 boosts the input voltage supplied from the external power source and supplies it to the compressor 20 and the like. The booster 15 boosts the input voltage to, for example, 115% or 125% of the input voltage and outputs the voltage.

The compressor 20 pressurizes the paint. The compressor 20 is, for example, an airless pump. The compressor 20 includes a manual regulator that accepts a user operation for adjusting the pressure (spray pressure) of the paint jetted from the nozzle 30. The coating machine 25 supplies the paint pressurized by the compressor 20 to the nozzle 30.

The nozzle 30 sprays paint onto the wall surface 100. In the first embodiment, the coating machine 25 and the nozzle 30 inject the paint by an airless spray method in which the paint pressurized by the compressor 20 is sprayed from the tip. However, the coating machine 25 and the nozzle 30 may inject the paint by an air spray method in which the paint is atomized and sprayed in the air. In the nozzle 30, the amount of paint discharged can be changed by exchanging the chips. Further, in the nozzle 30, the direction of spraying the paint can be changed by changing the direction of the tip. In the example shown in FIG. 1, the coating apparatus 1 includes two nozzles 30. However, the coating device 1 may include one or three or more nozzles 30.

The support column 40 is a holding mechanism for holding the nozzle 30. The height of the support column 40 may be determined according to the height of the wall surface 100 that is supposed to be painted by the painting device 1, and is, for example, 2 m. The support column 40 is located between the carriage 50 and the wall surface 100 when the wall surface 100 is painted by the painting device 1. In the first embodiment, the support column 40 has a square column shape. However, the shape of the support column 40 is not limited to this.

A rod-shaped support member 41 that supports the nozzle 30 is attached to the surface of the support column 40 that faces the wall surface 100. For example, a plurality of holes having different heights are formed on the surface of the support column 40 facing the wall surface 100, and the support member 41 is formed with a convex portion to be inserted into the hole. By inserting the convex portion of the support member 41 in the state of supporting the nozzle 30 into the concave portion of the support column 40, the support column 40 holds the nozzle 30. According to this configuration, the support member 41 can be easily attached to and detached from the support column 40.

FIG. 1 shows the respective support members 41 and the nozzles 30 attached to the support members 41 when the support members 41 are attached to the two heights. The user can change the height of the nozzle 30 held by the support column 40 depending on which of the plurality of holes of the support column 40 the convex portion of the support member 41 is inserted. In other words, the column 40 holds the nozzle 30 so that the height of the nozzle 30 can be changed. Therefore, the user can change the height of the nozzle 30 according to the height to be painted.

As described above, the coating apparatus 1 includes two nozzles 30. In the example shown in FIG. 1, the support member 41 supports the two nozzles 30 at different heights so that the relative positional relationship is constant. That is, in the painting apparatus 1, the heights of the two nozzles 30 are interlocked with each other. Further, in the support member 41, the distance between the two nozzles can be arbitrarily changed.

However, in the coating apparatus 1, the heights of the two nozzles 30 may be determined independently of each other. In this case, for example, the two nozzles 30 are individually attached to the columns 40.

The carriage 50 is a carriage on which a tank 10, a booster 15, a compressor 20, a coating machine 25, a nozzle 30, and a support column 40 are mounted. The dolly 50 is in contact with the ground via a plurality of wheels 51, and moves by being thrust by a user. Therefore, the painting device 1 itself moves with thrust given by the user. In the examples shown in FIGS. 1 and 2, the wheel 51 is a free wheel. In consideration of visibility, the wheels 51 are oriented in the direction in which the carriage 50 moves in parallel with the paper surface in both FIGS. 1 and 2. Further, the tank 10 is preferably mounted in the vicinity of the support column 40.

The nozzle 30 is held by the support column 40 via the actuator 35. The actuator 35 detects fluctuations in at least one of the height of the nozzle 30 and the spraying direction of the paint due to the swing of the carriage 50. Then, at least one of the height of the nozzle 30 and the spraying direction of the paint is changed in the direction opposite to the fluctuation. Therefore, even if the carriage 50 swings when the coating device 1 is moved, the paint can be sprayed at a constant height and / or in the spraying direction. Although the actuator 35 is shown only for one nozzle 30 in FIG. 1, each nozzle 30 is held by the support column 40 via the actuator 35.

For example, the actuator 35 includes an acceleration sensor that detects the acceleration of the nozzle 30 and a moving mechanism that moves the nozzle 30 in the vertical direction. When the carriage 50 swings, the acceleration sensor detects the acceleration of the nozzle 30 caused by the swing, and the moving mechanism moves the nozzle 30 in the direction opposite to the fluctuation of the height of the nozzle 30 due to the acceleration. .. Further, the actuator 35 may include an injection direction changing mechanism for changing the injection direction of the paint from the nozzle 30 instead of the moving mechanism.

The assist unit 55 generates an auxiliary thrust so that the moving speed of the carriage 50 becomes a desired speed. The carriage 50 includes a speed detection device (not shown) that detects the moving speed of the carriage 50. When the moving speed of the trolley 50 is slower than the desired speed, the assist unit 55 generates an auxiliary thrust in the direction of accelerating the trolley 50. On the other hand, when the moving speed of the trolley 50 is faster than the desired speed, the assist unit 55 generates an auxiliary thrust in the direction of decelerating the trolley 50. Therefore, the user can move the trolley 50 at a substantially constant speed regardless of the walking speed of the user himself / herself.

The handle 60 is gripped by the user in order to give thrust to the carriage 50 by the user. The handle 60 has a portion 61 gripped by the user's right hand and a portion 62 gripped by the left hand. Each portion is provided with a switch 63 for switching whether or not to operate the assist unit 55.

When the user grips the handle 60 with one hand to move the carriage 50, the moving speed and the moving direction of the carriage 50 may become unstable as compared with the case where the handle 60 is gripped with both hands. Therefore, when moving the dolly 50, it is preferable that the user grips the handle 60 with both hands. However, depending on the situation of the user, it may not be possible to grip the handle 60 with both hands. If the assist unit 55 is not operated in such a case, the convenience of the user is impaired.

Therefore, in the painting device 1, the assist unit 55 operates when at least one switch 63 is turned on. Therefore, the user can operate the assist unit 55 with only one hand and move the carriage 50 at a desired speed.

However, the assist unit 55 may operate only when both switches 63 are turned on. In this case, since the assist unit 55 operates only when the user grips the handle 60 with both hands, the stability of the moving speed and the moving direction when moving the carriage 50 is improved.

A battery 56 and a power distribution box 57 are provided in the vicinity of the handle 60. The battery 56 is a power source that supplies electric power to the assist unit 55. The power distribution box 57 controls the supply of electric power from the battery 56 to the assist unit 55 based on the on / off of the switch 63.

The connecting member 70 connects the painting device 1 to an external device. An example of the connecting member 70 is a feeder that connects the coating device 1 to a power supply device that supplies electric power to the compressor 20, the coating machine 25, and the like. When the nozzle 30 sprays paint by an air spray method, the connecting member 70 also includes an air hose that connects the pump that supplies air to the nozzle 30 and the nozzle 30. Further, when the compressor 20 is hydraulically driven, the connecting member 70 also includes a pipe for connecting the compressor 20 to the hydraulic device. Further, when the coating device 1 does not include the tank 10, the connecting member 70 also includes a pipe for connecting the coating device 1 to the paint supply device for supplying the paint.

The support member 75 supports the connecting member 70. Specifically, the support member 75 is a rod-shaped member extending from the carriage 50, and supports the connecting member 70 in the vicinity of the tip end. The support member 75 is provided at a portion different from the portion on the front side (for example, a portion on either the left or right side) when the carriage 50 is moved. Therefore, when the carriage 50 is moved, the possibility that the connecting member 70 becomes an obstacle is reduced.

The support member 75 is, for example, a slide bar that can be expanded and contracted from the carriage 50, and an eyebolt provided at the tip of the slide bar. The connecting member 70 is supported by the support member 75 by being arranged so as to pass through the eyebolts. According to this configuration, the space required for storing the painting apparatus 1 can be saved by removing the eyebolts and keeping the slide bar in the contracted state.

The spacing defining member 80 defines the spacing between the carriage 50 and the wall surface 100. The interval defining member 80 is provided at a portion of the trolley 50 on the side facing the wall surface 100 so as to extend from the trolley 50 toward the wall surface 100. A roller 81 that comes into contact with the wall surface 100 is provided at the tip of the interval defining member 80. The roller 81 rotates as the carriage 50 moves in a state of being in contact with the wall surface 100. Therefore, the user can move the carriage 50 and paint the wall surface 100 while maintaining the distance between the painting device 1 and the wall surface 100 at a constant distance defined by the length of the interval defining member 80. ..

The spacing member 80 has a length capable of ensuring an appropriate distance from the tip of the nozzle 30 to the wall surface 100, for example, 550 mm. Further, the interval defining member 80 does not have an excessive impact transmitted to the trolley 50 when it comes into contact with the wall surface 100, and the interval can be maintained even when the trolley 50 tries to move toward the wall surface 100. It is composed of a material of hardness. Further, the coating device 1 may include a shock absorber that reduces the impact transmitted to the carriage 50 when the interval defining member 80 comes into contact with the wall surface 100.

The interval defining member 80 extends from outside the moving range of the nozzle 30 in the height direction of the coating device 1. Therefore, as compared with the configuration in which the nozzle 30 extends from within the moving range, the possibility that the spray of the paint from the nozzle 30 to the wall surface 100 is hindered by the interval defining member 80 is reduced. The spacing member 80 is provided, for example, at a height at which the roller 81 abuts on the skirting board portion of the wall surface 100, specifically, at a height of 60 mm from the floor surface.

However, the coating device 1 does not necessarily have to include the interval defining member 80. For example, by drawing a line segment parallel to the wall surface 100 on the floor surface and moving the painting device 1 along the line segment, the wall surface is maintained at a constant distance between the painting device 1 and the wall surface 100. 100 can be painted. However, from the viewpoint of painting the wall surface 100 while maintaining the distance between the painting device 1 and the wall surface 100 more accurately and constant, it is preferable that the painting device 1 includes the space defining member 80.

The injection device according to the present invention is not limited to the coating device 1 described above. The injection device according to the present invention may be a device that injects, for example, a liquid other than paint, a paste-like object (for example, mortar or rock wool), or a particulate object onto an object.

Further, in the above-described example, the support column 40 holds the nozzle 30 so that its height can be changed, while the paint spraying direction is a constant direction toward the wall surface 100. However, the support column 40 may hold the nozzle 30 so that the direction in which the paint is sprayed can be changed. For example, the support column 40 holds the paint spraying direction so as to be changeable in a direction toward the wall surface 100, a direction toward the ceiling, or a direction toward the floor surface. In this case, the stanchion 40 may further hold the nozzle 30 in a changeable position in a plane parallel to the ceiling or floor.

FIG. 3 is a diagram showing an example of changing the spraying direction of the paint. In the example shown in FIG. 3, one end of the extension pole 36 is connected to the nozzle 30. An attachment 37 capable of changing the paint spraying direction is connected to the other end of the extension pole 36. By directing the spray direction of the paint toward the ceiling by the attachment 37, the paint can be sprayed toward the ceiling as shown by reference numeral 3001 in FIG. Further, by directing the spraying direction of the paint toward the floor surface by the attachment 37, the paint can be sprayed toward the floor surface as shown by reference numeral 3002 in FIG.

Further, in the above-described example, the carriage 50 is provided with an assist unit 55 and moves by being thrust by a user. However, the trolley 50 may be provided with a power source capable of moving the trolley 50 without thrust from the user. In this case, the coating device 1 can spray the paint on the wall surface 100 while automatically moving.

[Embodiment 2]
Other embodiments of the present invention will be described below. For convenience of explanation, the same reference numerals will be added to the members having the same functions as the members described in the above embodiment, and the description will not be repeated.

FIG. 4 is a side view showing an outline of the coating apparatus 2 according to the second embodiment. Unlike the painting device 1, the painting device 2 according to the second embodiment includes a first handle 64 and a second handle 65 as handles. As with the handle 60 described above, each of the first handle 64 and the second handle 65 switches whether or not to operate the assist unit for each of the portion gripped by the user's right hand and the portion gripped by the left hand. Switch 63 for this purpose may be provided.

The first handle 64 is provided at the position of the carriage 50, which is on the rear side when the carriage 50 is moved in the first direction. The second handle 65 is provided at the position of the carriage that is on the rear side when the carriage 50 is moved in a second direction different from the first direction. In FIG. 4, the first direction is the + y direction and the second direction is the −y direction.

In the painting device 2, when the direction in which the carriage 50 is moved is switched from the first direction to the second direction or vice versa, the handle gripped by the user may be changed, so that the direction of the carriage 50 itself is changed. No need to change. Therefore, for example, when the painting device 2 is reciprocated in front of the wall surface 100 for painting, it is not necessary to invert the trolley, and the time and effort of the user is reduced. In the example shown in FIG. 4, the first direction and the second direction are opposite to each other, but the relationship between the first direction and the second direction is not limited to this, and the directions are orthogonal to each other. And so on.

The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims, and the embodiments obtained by appropriately combining the technical means disclosed in the different embodiments. Is also included in the technical scope of the present invention.

1, 2 Painting equipment (injection equipment)
30 Nozzle 40 Strut (Nozzle holding mechanism)
50 dolly 55 Assist unit (auxiliary thrust source)
60 Handle 63 Switch 64 1st Handle 65 2nd Handle 80 Spacing Control Member 81 Roller

Claims (8)

An injection device that injects an injection object onto an object.
A dolly that moves with thrust from the user,
A nozzle mounted on the trolley and ejecting the jet
An injection device including a nozzle holding mechanism that mutably holds at least one of the height of the nozzle and the injection direction of the injection object. The fluctuation of at least one of the height of the nozzle and the injection direction of the injection object due to the swing of the carriage is detected, and at least one of the height of the nozzle and the injection direction of the injection object is opposite to the fluctuation. The injection device according to claim 1, further comprising an actuator for changing one of them. A connecting member that connects the injection device to an external device,
A support member for supporting the connection member is further provided.
The injection device according to claim 1 or 2, wherein the support member is provided at a portion different from a portion on the front side when the carriage is moved. The injection device according to claim 1, further comprising an auxiliary thrust source that generates an auxiliary thrust so that the moving speed of the carriage becomes a desired speed. Further provided with a handle gripped by the user to exert the thrust on the trolley.
In the handle, a switch for switching whether or not to operate the auxiliary thrust source is provided at each of the portion gripped by the user's right hand and the portion gripped by the user's left hand.
The injection device according to claim 4, wherein the auxiliary thrust source operates when at least one of the switches is turned on. As the handle
A first handle provided at a position of the carriage on the rear side when the carriage is moved in the first direction,
A second handle provided at the position of the trolley on the rear side when the trolley is moved in a second direction different from the first direction.
The injection device according to claim 5. An interval defining member that extends from the carriage toward the object and defines the interval between the injection device and the object.
The injection device according to any one of claims 1 to 6, further comprising a roller provided at the tip of the interval defining member and in contact with the object. The injection device according to claim 7, wherein the interval defining member extends from outside the moving range of the nozzle in the height direction of the injection device.

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