JPH06142557A - Water film forming apparatus provided with mechanism for changeable water film - Google Patents

Abstract

PURPOSE:To improve visual change, degree of attention and degree of topics by changing a water film into various shapes. CONSTITUTION:The rear face side of a water film forming member 2 provided with a collision face 2A to which a jet stream 3 ejected from a nozzle 1 comes into collision is supported with free rocking by means of a rocking mechanism 8 constituted of two actuator 80A and 80B provided with a cylinder 81 and a piston, rod 82, a supporting rod 83 and three ball joints 9A, 9B and 9C which bring the apex part of the piston rod 82 and the apex part of the supporting rod 83 into contact with the rear face side of the water film forming member 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water film forming apparatus having a water film changing mechanism.

[0002]

2. Description of the Related Art Conventionally, for example, as shown in FIG.
A nozzle 1 and a plate-shaped water film forming member 2 that is arranged to face the nozzle 1 with a predetermined interval are provided, and a collision surface 2A of the jet flow 3 ejected from the nozzle 1 is formed in a planar shape. A water film forming device having a structure orthogonal to the jet 3 or a water film forming device having a structure in which the collision surface 2A of the jet 3 ejected from the nozzle 1 is formed in a hemispherical concave shape as shown in FIG. Are known.

According to the water film forming apparatus shown in FIG. 9, the jet flow 3 ejected from the nozzle 1 collides with the flat collision surface 2A of the water film formation member 2 and then flows in the outer peripheral direction along the collision surface 2A. It is possible to form the water film 4 that spreads in a disc shape orthogonal to the jet flow 3 on the outer peripheral region of the collision surface 2A. In addition, FIG.
According to the water film forming apparatus shown in FIG. 1, the jet flow 3 ejected from the nozzle 1 collides with the hemispherical concave collision surface 2A of the water film forming member 2 and then flows in the outer peripheral direction along the collision surface 2A to collide with the collision surface 2A. Water film 4 spreading like an umbrella in the outer peripheral region of the jet
Can be formed.

However, in the conventional water film forming apparatus, since the shape of the water film 4 is constant, the water film forming device has the drawbacks of lacking visual change and lacking attention and topicality.

[0005]

The problem to be solved is that the shape of the water film is constant and invariable, so that there is little visual change and lack of attention and topicality.

[0006]

According to a first aspect of the present invention, there is provided a water film forming apparatus for causing a jet flow ejected from a nozzle to collide with a collision surface of a water film forming member so as to flow in a film shape in the outer peripheral direction of the jet flow. The water film forming member is swingably supported by a rocking mechanism. By changing the water film into various forms, the object of improving visual change, attention and topicality is achieved. .

According to a second aspect of the present invention, in the water film forming apparatus for causing the jet flow ejected from the nozzle to collide with the collision surface of the water film formation member to flow in a film shape in the outer peripheral direction of the jet flow, the water film is formed by a rotating mechanism. The formation member is rotatably supported, and the collision surface is inclined with respect to the jet flow. By changing the water film into various forms within one rotation of the water film formation member, We achieved the purpose of improving various changes and the degree of attention and topicality.

[0008]

According to the first aspect of the present invention, by swinging the water film forming member by the action of the swing mechanism, the tilt angle and the tilt direction of the collision surface with respect to the jet flow are changed, and the jet flow into the collision surface. The angle will also change. The form of the water film that flows in a film shape in the outer peripheral direction of the jet flow changes variously according to the inclination angle of the collision surface and the variation of the inflow angle of the jet flow based on the inclination direction.

According to the second aspect of the present invention, by rotating the water film forming member by the action of the rotating mechanism, the inclination direction of the collision surface with respect to the jet flow is changed within one rotation of the water film forming member, and the collision surface is also changed. The inflow angle of the jet with respect to will also change. The form of the water film that flows like a film in the outer circumferential direction of the jet flow changes variously within one rotation of the water film forming member according to the variation of the inflow angle of the jet flow based on the inclination direction of the collision surface.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. It should be noted that the same or corresponding portions as those in the conventional example will be described by attaching the same reference numerals. 1 and 2 show an embodiment of the first invention. In these figures, the water film forming apparatus includes a nozzle 1 and a disk-shaped water film forming member 2 that is arranged to face the nozzle 1 with a predetermined interval,
The collision surface 2A of the water film forming member 2 is formed in a flat shape. The nozzle 1 is connected to the outlet of a passage 6 provided with a valve 5, and the inlet of the passage 6 is connected to the discharge port of a pump 7.

The water film forming member 2 is swingably supported by a swing mechanism 8. That is, the swinging mechanism 8 includes two actuators 80A and 80B each having a cylinder 81 and a piston rod 82, and one support rod 83 and actuators 80A and 80B.
Two ball joints 9A, 9B, 9 for connecting the tip of the water film forming member 2 to the tip of the water film forming member 2
It is composed of C. Each ball joint 9A,
9B, 9C position, that is, actuators 80A, 8
0B and the axis of the support rod 83 are set at the vertices of an equilateral triangle drawn on the collision surface 2A of the water film forming member 2.

With such a structure, the jet flow 3 ejected from the nozzle 1 has a flat collision surface 2A of the water film forming member 2.
After the collision, the water film 4 flows in the outer peripheral direction along the collision surface 2A and forms a disc-shaped water film 4 orthogonal to the jet 3 in the outer peripheral region of the collision surface 2A. Here, the actuator of the swing mechanism 8
Actuators 80A and 80B simultaneously to actuate both actuators.
The same piston rod 82 of 80A and 80B
When the water film forming member 2 is extruded by a large amount, the water film forming member 2 tilts from the posture shown by the solid line in FIG. 3 to the upward posture shown by the chain line. Therefore, the jet 3 collides with the inclined collision surface 2A and then flows in the outer peripheral direction along the collision surface 2A, and in the outer peripheral region of the collision surface 2A, the jet 3 is inclined upward with respect to the jet 3 as indicated by a dashed line. The water film 4 spreading like a circle is formed. Further, in the state of FIGS. 1 and 2, the actuator 8 of the swing mechanism 8
0A and 80B are operated at the same time, and both actuators 8
When the piston rods 82 of 0A and 80B are pulled in with the same stroke amount, the water film forming member 2 tilts from the posture shown by the solid line in FIG. 3 to the downward posture shown by the chain double-dashed line. Therefore,
The jet 3 collides with the inclined collision surface 2A and then collides with the collision surface 2A.
A water film 4 that flows in the outer peripheral direction along the line and forms a disk shape that inclines downward with respect to the jet 3 and spreads in a disk shape in the outer peripheral region of the collision surface 2A.

On the other hand, in the state shown in FIGS. 1 and 2, the actuators 80A and 80B of the rocking mechanism 8 are simultaneously actuated to retract the piston rod 82 of the actuator 80A, and the piston rod 82 of 80B is moved to the same stroke. When the water film forming member 2 is extruded by a large amount, the water film forming member 2 tilts from the posture shown by the solid line in FIG. 4 to the posture shown by the alternate long and short dash line. Therefore, the jet 3 collides with the inclined collision surface 2A and then flows in the outer peripheral direction along the collision surface 2A, and in the outer peripheral region of the collision surface 2A, the jet 3 is inclined rightward with respect to the jet 3 as indicated by the alternate long and short dash line. The water film 4 spreading like a circle is formed. Further, in the state shown in FIGS. 1 and 2, the actuators 80A, 80A of the swing mechanism 8 are arranged.
When B is operated simultaneously, the piston rod 82 of the actuator 80A is pushed out, and the piston rod 82 of 80B is pulled in by the same stroke amount, the water film forming member 2 is changed from the posture shown by the solid line in FIG. Incline to the posture shown in. Therefore, the jet 3 collides with the inclined collision surface 2A and then flows in the outer peripheral direction along the collision surface 2A, and in the outer peripheral region of the collision surface 2A, is inclined leftward with respect to the jet 3 as indicated by the chain double-dashed line. A water film 4 spreading in a disk shape is formed.

As described above, in the first aspect of the invention, the jet 3 is generated by operating the swing mechanism 8 to swing the water film forming member 2.
The inclination angle and the inclination direction of the collision surface 2A with respect to the
Since the form of the water film 4 can be variously changed in accordance with the inclination angle of the collision surface 2A and the inflow angle variation of the jet flow 3 based on the inclination direction, it can be visually changed as compared with the conventional water film device. The degree of attention and topicality can be improved.

FIGS. 5 and 6 show an embodiment of the second invention. In these figures, the water film forming device is shown as a nozzle 1
And a disk-shaped water film forming member 2 arranged to face the nozzle 1 at a predetermined interval, and the collision surface 2A of the water film forming member 2 is formed in a flat shape. The nozzle 1 is connected to the outlet of a passage 6 provided with a valve 5, and the inlet of the passage 6 is connected to the discharge port of a pump 7.

The water film forming member 2 is rotatably supported by a rotating mechanism 10. That is, the rotation mechanism 10
It is constituted by a motor 11, and its output rotary shaft 11A is concentrically connected to the back side of the water film forming member 2.

With such a structure, the jet flow 3 ejected from the nozzle 1 shown in FIG.
After colliding with the planar collision surface 2A of the water film forming member 2 flows in the outer peripheral direction along the collision surface 2A, and is inclined upward with respect to the jet 3 in the outer peripheral region of the collision surface 2A as shown by the solid line. To form a disk-shaped water film 4. Here, when the rotating mechanism 10 is driven to rotate the water film forming member 2, the water film forming member 2 rotates from 90 ° at the rotation angle of 90 ° to the position shown by the dashed line from the position shown by the solid line in FIG. 7 and FIG. , Vertical in the vertical direction and inclined to the left. Therefore, the jet flow 3 collides with the collision surface 2A and then flows in the outer peripheral direction along the collision surface 2A, as indicated by the one-dot chain line in the outer peripheral area of the collision surface 2A. A water film 4 that spreads like a disc is formed. That is,
The form of the water film 4 gradually changes from the upward tilted posture in FIG. 5 to the vertical tilted leftward posture in the vertical direction indicated by the alternate long and short dash line in FIGS. 7 and 8.

The water film forming member 2 has a posture shown by a chain double-dashed line at a rotation angle of 180 degrees, that is, a posture inclined downward, so that the jet 3 collides with the collision surface 2A and then along the collision surface 2A. A downwardly inclined water film 4 spreading in a disc shape as shown by a chain double-dashed line is formed in the outer peripheral region of the collision surface 2A by flowing in the outer peripheral direction. That is, the form of the water film 4 is
In the up-down direction indicated by the alternate long and short dash line, the posture gradually changes from the vertical and leftward inclined posture to the downwardly inclined posture indicated by the two-dot chain line.

The water film forming member 2 has a posture shown by a broken line at a rotation angle of 270 degrees, that is, a posture which is vertical in the vertical direction and is inclined rightward. Therefore, the jet 3 collides with the collision surface 2A and then the collision surface 2A. A water film 4 that flows in the outer peripheral direction along and extends in a disk shape as shown by the broken line is formed in the outer peripheral region of the collision surface 2A. That is, the form of the water film 4 gradually changes from the downwardly inclined posture shown by the two-dot chain line to the vertical and rightward inclined posture in the vertical direction shown by the broken line. And
At the rotation angle of 360 degrees, the posture of the water film 4 is returned to the upwardly inclined posture shown in FIG. 5, and the form of the water film 4 is vertically inclined in the vertical direction shown by the broken lines in FIGS. It will return to the posture that it did.

As described above, the second aspect of the present invention provides the rotating mechanism 10.
Is activated to rotate the water film forming member 2, so that the inclination direction of the collision surface 2 </ b> A with respect to the jet flow 3 becomes 1 of the water film forming member 2.
While changing within the rotation, the inflow angle of the jet 3 with respect to the collision surface 2A also changes, and the shape of the water film 4 is changed to the collision surface 2A.
Since the water film forming member 2 can be variously changed within one rotation according to the variation of the inflow angle of the jet flow 3 based on the inclination direction of the jet water, the visual change and the attention are paid as compared with the conventional water film device. The degree and topicality can be improved.

In the above embodiment, two actuators 80 each having a cylinder 81 and a piston rod 82 are provided.
A, 80B, and one support rod 83 and actuators 80A, 80B. Three ball joints for connecting the tip end portion of the piston rod 82 and the tip end portion of the support rod 83 to the rear surface side of the water film forming member 2. Although the description has been given of the configuration using the swinging mechanism 8 constituted by 9A, 9B, 9C, the present invention is not limited to the above-mentioned embodiment, and various swinging configured by other mechanisms. Even if the mechanism 8 is used, the same operational effect as that of the above-described embodiment can be obtained.

[0022]

As described above, according to the present invention, since the form of the water film can be variously changed according to the inclination angle of the collision surface and the inflow angle variation of the jet flow based on the inclination direction, Compared with the conventional water film device whose shape was constant,
Visual changes and attention and topicality can be improved.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the first invention.

FIG. 2 is a left side view of FIG.

FIG. 3 is an operation explanatory view seen from a left side surface of FIG.

FIG. 4 is an operation explanatory view as seen from the plane of FIG.

FIG. 5 is a left side view showing an embodiment of the second invention.

FIG. 6 is a front view of FIG.

FIG. 7 is an operation explanatory view seen from the left side of FIG.

8 is a cross-sectional plan view of FIG.

FIG. 9 is a left side view showing a conventional example.

FIG. 10 is a left side view showing another conventional example.

[Explanation of symbols]

 1 Nozzle 2 Water Film Forming Member 2A Collision Surface of Water Film Forming Member 3 Jet 4 Water Film 9 Swinging Mechanism 10 Rotating Mechanism

Claims (2)

[Claims] 1. A water film forming apparatus for causing a jet flow ejected from a nozzle to collide with a collision surface of the water film forming member so as to flow in a film shape in the outer peripheral direction of the jet flow. A water film forming apparatus equipped with a water film variable mechanism, which is movably supported. 2. A water film forming apparatus for causing a jet flow ejected from a nozzle to collide with a collision surface of the water film forming member so as to flow in a film shape in the outer peripheral direction of the jet flow, the water film forming member being rotatable by a rotating mechanism. A water film forming apparatus provided with a water film varying mechanism, the water film forming mechanism being supported by a water film, and the collision surface being inclined with respect to the jet flow.