JP2017219282A - Air curtain device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air curtain device capable of forming an air curtain by a blowout port and a suction port without providing a suction port on a floor surface and the like.SOLUTION: An air curtain device 100 includes: a pair of strut parts 2 having an entrance 1a and extending vertically with an interval; a gate-type structure gate part 1 including an upper plate part 3 for connecting between the pair of strut parts 2; a base part 4 for supporting the gate part 1 from below; a first blowout port 5 and a second blowout port 6 provided adjacent to each other at the upper plate part 3 with an interval which is equal to or less than the length of the strut part 2 in the direction of passing the gate part 1, and for forming an air curtain airflow P blown down toward a floor surface 102 on which the base part 4 is placed; and suction ports 7 provided at the base part 4 with an interval in the direction of passing the gate part 1 and for sucking the air curtain airflow P blown out from each of the first blowout port 5 and the second blowout port 6.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an air curtain device, and more particularly to an air curtain device including a suction port for sucking an air curtain airflow.

  2. Description of the Related Art Conventionally, an air curtain device having a suction port for sucking an air curtain airflow is known (for example, see Patent Document 1).

  The air curtain device described in Patent Document 1 has a blower outlet on the ceiling side and a suction port at a rising portion of a staircase on the floor surface side. And it is comprised so that an air curtain may be formed between a blower outlet and a suction inlet by air blowing out toward a suction inlet from a blower outlet.

Japanese Patent Laid-Open No. 62-33235

  However, in the air curtain device described in Patent Document 1, it is necessary to excavate the floor (staircase) and provide a blower duct inside the floor (staircase) in order to provide the suction port. There is a problem that is necessary.

  The present invention has been made to solve the above-described problems, and one object of the present invention is to form an air curtain by a blow-out port and a suction port without providing a suction port on a floor surface or the like. It is providing the air curtain apparatus which can do.

  An air curtain device according to an aspect of the present invention includes a gate type including a pair of support columns having a passage opening and extending in the vertical direction with a gap therebetween, and an upper plate portion connecting between the pair of support columns. The gate portion of the structure, the base portion that supports the gate portion from below, and the base plate portion are provided adjacent to each other on the upper plate portion with an interval equal to or less than the length of the column portion in the direction passing through the gate portion. The first air outlet and the second air outlet that form an air curtain airflow that is blown down toward the floor on which the airflow is placed, and the first air outlet are provided in the base portion with an interval in the direction passing through the gate portion. A suction port for sucking an air curtain airflow blown out from each of the air outlet and the second air outlet.

  In the air curtain device according to one aspect of the present invention, as described above, the suction port is provided in the base portion that supports the gate portion from below, so that the suction port is installed on the floor surface and the floor surface. There is no need to provide a duct for blowing inside. Further, the first air outlet and the second air outlet are provided adjacent to each other with an interval equal to or less than the length of the support column in the direction passing through the gate portion, so that the two air curtain airflows are adjacent to each other. And blown down. As a result, by providing the suction port in the base portion, the air curtain can be easily formed without installing the suction port on the floor surface or the like due to large-scale construction or the like. In addition, since the two air curtain airflows are blown down adjacent to each other, the heat shielding performance by the air curtain can be improved as compared with the case where one air curtain airflow is blown down.

  In the air curtain device according to the above aspect, preferably, the suction port includes a first suction port for sucking a first air curtain airflow blown down from the first blowout port, and a second air curtain blown down from the second blowout port. A second suction port for sucking the airflow. If comprised in this way, compared with the case where a 1st air curtain airflow and a 2nd air curtain airflow are suck | inhaled only by a single inlet, a 1st air curtain airflow and a 2nd air curtain airflow are mutually independent. Can be formed. As a result, compared to the case where only a single suction port is provided, the heat shielding performance by the air curtain can be improved and the power consumption of the refrigerator compartment or the like can be reduced.

  In this case, preferably, in the direction passing through the gate portion, the interval between the first suction port and the second suction port is configured to be larger than the interval between the first air outlet and the second air outlet. The first air curtain airflow from the first air outlet is blown down to the side opposite to the side where the second air outlet is provided with respect to the first air outlet toward the first air inlet. The second air curtain airflow from the two air outlets is configured to be blown down to the side opposite to the side where the first air outlet is provided with respect to the second air outlet toward the second air inlet. Yes. If comprised in this way, while the 1st air curtain air current is blown toward the 1st inlet, the 1st air curtain air current can be formed easily, and the 2nd air curtain air current is the 2nd suction. The second air curtain airflow can be easily formed by being blown out toward the mouth. Moreover, while the 1st air curtain airflow is blown down on the opposite side to the side in which the 2nd air outlet is provided with respect to the 1st air outlet, the 2nd air curtain airflow is with respect to the 2nd air outlet. By blowing down to the side opposite to the side where the first air outlet is provided, interference (collision) between the first air curtain airflow and the second air curtain airflow can be suppressed. As a result, since the turbulence of the first air curtain airflow and the second air curtain airflow can be suppressed, it is possible to suppress a decrease in the heat blocking performance due to the air curtain.

  In the air curtain device including the first suction port and the second suction port, preferably, the base portion includes an inclined portion provided across the floor surface and the passage port, the first suction port, and the second suction port. Each of the suction ports is provided in the inclined portion. If comprised in this way, since a level | step difference will be eliminated between a floor surface and a passageway by providing an inclined part over a floor surface and a passageway, a user can pass a passageway easily. . Moreover, the enlargement of the apparatus can be suppressed by providing each of the first suction port and the second suction port in the inclined portion for passage.

  In the air curtain device including the first suction port and the second suction port, preferably, each of the first air outlet and the second air outlet is at least one of the first air inlet and the second air inlet. Each of the first air curtain airflow sucked from the first suction port and the second air curtain airflow sucked from the second suction port is configured to communicate with either one of the inside of the base portion. It is configured to be supplied to at least one of the first air outlet and the second air outlet through the inside of the gate portion. If comprised in this way, each of the 1st air curtain airflow inhaled by the 1st inlet and the 2nd air curtain airflow inhaled by the 2nd inlet will not leak outside but the 1st blower outlet Or, since it is circulated to the second outlet, the circulation efficiency can be improved.

  In the air curtain device according to the aforementioned aspect, preferably, the base portion includes a moving member configured to be movable on the floor surface, and the base portion and the gate portion are integrated on the floor surface by the moving member. Configured to move. If comprised in this way, an air curtain apparatus can be easily moved in the refrigerator compartment etc. in which an air curtain apparatus is provided. As a result, it is possible to easily change the area to be divided by the air curtain in the refrigerator compartment or the like.

  In the air curtain device according to the above aspect, the gate portion preferably includes a height adjusting portion that adjusts the length of the column portion in the height direction. If comprised in this way, since the magnitude | size of the height direction of an air curtain apparatus can be adjusted, the height of an air curtain apparatus can be adjusted according to heights, such as a refrigerator compartment. As a result, it is possible to more effectively suppress the movement of heat or the movement of dust or the like between regions divided by the air curtain.

  ADVANTAGE OF THE INVENTION According to this invention, the air curtain apparatus which can form the air curtain by a blower outlet and a suction inlet, without providing a suction inlet in a floor surface etc. as mentioned above can be provided.

It is the perspective view which showed the structure of the air curtain apparatus by 1st Embodiment of this invention. It is sectional drawing along the 200-200 line | wire of FIG. It is the perspective view which showed the structure of the air curtain apparatus at the time of fixation by 2nd Embodiment of this invention. It is the perspective view which showed the structure of the air curtain apparatus at the time of the movement by 2nd Embodiment of this invention. It is the perspective view which showed the structure of the air curtain apparatus at the time of fixation by the modification of 2nd Embodiment of this invention. It is the perspective view which showed the structure of the air curtain apparatus at the time of the movement by the modification of 2nd Embodiment of this invention. It is the side view which showed the structure of the air curtain apparatus by the modification of 1st Embodiment of this invention. It is the perspective view which showed the structure of the air curtain apparatus which provided the discharge port in the inclination part by the modification of 1st Embodiment of this invention. It is the perspective view which showed the structure of the air curtain apparatus which provided the discharge port other than the inclination part by the modification of 1st Embodiment of this invention. It is the perspective view which showed the structure by which the wind-shielding part was provided in the air curtain apparatus by the modification of 2nd Embodiment of this invention.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Embodiments of the invention will be described below with reference to the drawings.

[First Embodiment]
First, with reference to FIG. 1 and FIG. 2, the structure of the air curtain apparatus 100 by 1st Embodiment is demonstrated.

(Structure of air curtain device)
As shown in FIG. 1, the air curtain device 100 includes a gate portion 1 having a portal structure. Moreover, the gate part 1 has the passage 1a. A user (not shown) can move between the two regions separated by the air curtain device 100 through the passage 1a. Specifically, as shown in FIG. 2, the user can move between the area 101a and the area 101b of the refrigerator compartment 101 through the passage 1a.

  As shown in FIG. 1, the gate portion 1 includes a pair of support columns 2 extending in the vertical direction (Z direction) with a gap therebetween. Specifically, the pair of support columns 2 includes a support column 20 on the Y1 direction side and a support column 21 on the Y2 direction side. Further, the length of the support column 20 in the height direction (Z direction) is substantially equal to the length of the support column 21 in the height direction (Z direction).

  The gate portion 1 includes an upper plate portion 3 that connects between the pair of support column portions 2. Specifically, the end portion on the Z1 direction side of the support column 20 and the end portion on the Z1 direction side of the support column 21 are connected by the upper plate portion 3.

  The air curtain device 100 includes a base portion 4 that supports the gate portion 1 from below. Specifically, the gate portion 1 is provided on the upper surface 4 a (surface on the Z1 direction side) of the base portion 4. Moreover, the gate part 1 and the base part 4 are being fixed by members, such as a screw which is not shown in figure. In addition, the base portion 4 has a trapezoidal column shape in which a trapezoidal cross section extends in the Y direction. Further, the height (Z direction) of the base portion 4 does not change depending on the position in the Y direction and is constant. That is, the upper surface 4a extends substantially parallel and horizontally to the floor surface 102 (see FIG. 2) on which the air curtain device 100 is placed.

  In addition, as shown in FIG. 2, the air curtain device 100 is provided adjacent to each other on the upper plate part 3 with an interval equal to or less than the length of the column part 2 in the direction passing through the gate part 1. An air outlet 5 and a second air outlet 6 are provided. Specifically, in the X direction, the distance (interval) D1 between the first blower outlet 5 and the second blower outlet 6 is a pillar upper part 20a (the pillar upper part) of the pillar 20 (the pillar 21 (see FIG. 1)). It is smaller than the width W1 of the portion 21a (see FIG. 1). Note that the width W1 of the upper column portion 20a (the upper column portion 21a) is smaller than the width W2 of the lower column portion 20b (the lower column portion 21b (see FIG. 1)) in the X direction. The first air outlet 5 is provided on the X1 direction side, and the second air outlet 6 is provided on the X2 direction side.

  Further, each of the first air outlet 5 and the second air outlet 6 forms an air curtain airflow P toward the floor surface 102. Specifically, the 1st blower outlet 5 forms the 1st air curtain airflow P1. Moreover, the 2nd blower outlet 6 forms the 2nd air curtain airflow P2.

  Here, in 1st Embodiment, while the air curtain apparatus 100 is provided in the base part 4 at intervals in the direction which passes the gate part 1, it blows off from each of the 1st blower outlet 5 and the 2nd blower outlet 6. The air inlet 7 for sucking the air curtain airflow P to be drawn is provided. Specifically, the suction port 7 includes a first suction port 70 that sucks the first air curtain airflow P <b> 1 blown down from the first blower outlet 5. In addition, the suction port 7 includes a second suction port 71 that sucks in the second air curtain airflow P2 blown down from the second blower port 6.

  In the first embodiment, the distance between the first suction port 70 and the second suction port 71 is larger than the distance between the first air outlet 5 and the second air outlet 6 in the direction passing through the gate portion 1. It is comprised so that it may become. Specifically, the first suction port 70 and the second suction port 71 are provided so as to be separated from each other by a distance (interval) D2 larger than the distance (interval) D1 in the X direction. Further, the distance D2 is larger than the width W2 in the X direction of the column lower side 20b (column lower side 21b (see FIG. 1)).

  Further, the first air curtain air flow P1 from the first air outlet 5 is directed toward the first suction port 70 on the side opposite to the side where the second air outlet 6 is provided with respect to the first air outlet 5. Be blown down. Further, the second air curtain airflow P2 from the second air outlet 6 is directed toward the second air inlet 71 on the side opposite to the side where the first air outlet 5 is provided with respect to the second air outlet 6. It is configured to be blown down. Specifically, the first air curtain air flow P <b> 1 is blown down toward the Z <b> 2 direction and is blown out toward the first suction port 70 disposed on the X <b> 1 direction side from the first air outlet 5. In addition, the second air curtain airflow P2 is blown down toward the Z2 direction, and is blown out toward the second suction port 71 disposed on the X2 direction side from the second air outlet 6.

  Moreover, in 1st Embodiment, the base part 4 contains the inclination part 8 provided over the floor surface 102 and the passage 1a (refer FIG. 1). Specifically, the inclined portion 8 is provided so as to connect the floor surface 102 and the upper surface 4a of the base portion 4 (see FIG. 1). Further, the angle formed between the inclined portion 8 provided on the X1 direction side and the floor surface 102 is substantially equal to the angle formed between the inclined portion 8 provided on the X2 direction side and the floor surface 102.

  Further, each of the first suction port 70 and the second suction port 71 is provided in the inclined portion 8. Specifically, the first suction port 70 is provided in the inclined portion 8 on the X1 direction side. The second suction port 71 is provided in the inclined portion 8 on the X2 direction side.

  In the first embodiment, each of the first air outlet 5 and the second air outlet 6 is configured to communicate with both the first air inlet 70 and the second air inlet 71. In addition, each of the first air curtain airflow P1 sucked from the first suction port 70 and the second air curtain airflow P2 sucked from the second suction port 71 is inside the base portion 4 and the inside of the gate portion 1. It is comprised so that it may be supplied to both the 1st blower outlet 5 and the 2nd blower outlet 6 via these. Specifically, the base part 4, the support lower part 20b (the support lower part 21b (see FIG. 1)), the support upper part 20a (the support upper part 21a (see FIG. 1)), and the upper plate part 3 Since each inside is hollow, air (airflow) is configured to be able to circulate.

  Further, each of the first air curtain airflow P1 sucked into the first suction port 70 and the second air curtain airflow P2 sucked into the second suction port 71 is guided in the Y1 direction by being guided by the inclined portion 8. Alternatively, it diffuses in the Y2 direction and is guided into the gate portion 1.

  Moreover, as shown in FIG. 1, the air blower 9 is provided in each of the support | pillar lower part 20b and the support | pillar lower part 21b. The air (first air curtain air flow P1 and second air curtain air flow P2) sucked from the first suction port 70 and the second suction port 71 (see FIG. 2) by the blower 9 (shown by broken lines) is an air curtain device. It circulates inside 100.

  In the first embodiment, the gate unit 1 includes a height adjusting unit 10 that adjusts the length of the support column 2 in the height direction. Specifically, the support upper portion 20a (support upper portion 21a) is configured to be fitted to the support lower portion 20b (support lower portion 21b). The length of the upper column portion 20a (the upper column portion 21a) exposed from the portion 20b (the lower column portion 21b) can be adjusted. For example, the height adjustment unit 10 includes a screw mechanism. That is, by loosening the screws, the support upper part 20a (support upper part 21a) can move in the height direction (Z direction). Moreover, the column upper part 20a (column upper part 21a) is fixed by tightening the screw. In FIG. 2, for convenience, the illustration of the height adjusting unit 10 is omitted.

(Effect of 1st Embodiment)
In the first embodiment, the following effects can be obtained.

  In 1st Embodiment, while having the passage 1a as mentioned above, it includes a pair of support | pillar parts 2 extended in the up-down direction at intervals, and the upper board part 3 which connects between a pair of support | pillar parts 2 is included. The upper plate portion 3 is separated from the upper plate portion 3 with a gap equal to or less than the length of the gate portion 1 having a gate structure, the base portion 4 supporting the gate portion 1 from below, and the column portion 2 in the direction passing through the gate portion 1. The first air outlet 5 and the second air outlet 6 that are provided adjacent to each other and form an air curtain airflow P that is blown down toward the floor surface 102 on which the base portion 4 is placed, and the gate portion 1. The air curtain device is provided with a suction port 7 for sucking an air curtain airflow P blown out from each of the first blower outlet 5 and the second blower outlet 6 while being provided in the base portion 4 with an interval in the direction. 100 is configured. As a result, the suction port 7 is provided in the base portion 4 that supports the gate portion 1 from below, so that the suction port 7 is installed on the floor surface 102 and the like, and a ventilation duct or the like is installed inside the floor surface 102 and the like. There is no need to provide it. Further, two air curtains are provided by providing the first air outlet 5 and the second air outlet 6 so as to be adjacent to each other with an interval equal to or less than the length of the column portion 2 in the direction passing through the gate portion 1. The airflow P is blown down adjacently. As a result, the air inlet can be easily formed without installing the air inlet 7 on the floor surface 102 or the like due to large-scale construction or the like by providing the air inlet 7 in the base portion 4. In addition, since the two air curtain airflows P are blown down adjacent to each other, the heat shielding performance by the air curtain can be improved as compared with the case where one air curtain airflow P is blown down.

  In the first embodiment, as described above, the suction port 7 is blown down from the first suction port 70 for sucking the first air curtain airflow P1 blown down from the first blower outlet 5 and the second blower outlet 6. The air curtain device 100 is configured to include the second air inlet 71 that sucks in the second air curtain airflow P <b> 2. Thereby, compared with the case where 1st air curtain airflow P1 and 2nd air curtain airflow P2 are suck | inhaled only by the single suction inlet 7, 1st air curtain airflow P1 and 2nd air curtain airflow P2 are mutually independent. Can be formed. As a result, compared with the case where only the single suction port 7 is provided, the heat shielding performance by the air curtain can be improved, and the power consumption of the refrigerator compartment 101 and the like can be reduced.

  Moreover, in 1st Embodiment, as mentioned above, in the direction which passes the gate part 1, the space | interval of the 1st suction inlet 70 and the 2nd suction inlet 71 is the 1st blower outlet 5 and the 2nd blower outlet 6. The first air curtain airflow P <b> 1 from the first air outlet 5 is directed toward the first air inlet 70 with respect to the first air outlet 5, and the second air outlet 6. And the second air curtain airflow P2 from the second air outlet 6 is directed toward the second air inlet 71 with respect to the second air outlet 6. The air curtain device 100 is configured so as to be blown down to the side opposite to the side where the air outlet 5 is provided. Thus, the first air curtain airflow P1 is blown out toward the first suction port 70, whereby the first air curtain airflow P1 can be easily formed, and the second air curtain airflow P2 is second suctioned. By blowing out toward the mouth 71, the second air curtain airflow P2 can be easily formed. In addition, the first air curtain airflow P1 is blown down to the side opposite to the side where the second air outlet 6 is provided with respect to the first air outlet 5, and the second air curtain airflow P2 is Suppressing interference (collision) between the first air curtain airflow P1 and the second air curtain airflow P2 by being blown down on the opposite side of the outlet 6 from the side where the first air outlet 5 is provided. Can do. As a result, since the turbulence of the first air curtain airflow P1 and the second air curtain airflow P2 can be suppressed, it is possible to suppress a decrease in the heat blocking performance due to the air curtain.

  Moreover, in 1st Embodiment, as mentioned above, the base part 4 contains the inclination part 8 provided over the floor surface 102 and the passage 1a, and the 1st suction inlet 70 and the 2nd suction inlet 71 are included. The air curtain device 100 is configured so that each of these is provided on the inclined portion 8. Thereby, since the inclined portion 8 is provided between the floor surface 102 and the passage opening 1a, there is no step between the floor surface 102 and the passage opening 1a, so that the user can easily pass through the passage opening 1a. Can do. Further, since each of the first suction port 70 and the second suction port 71 is provided in the inclined portion 8 for passage, an increase in the size of the device can be suppressed.

  In the first embodiment, as described above, each of the first air outlet 5 and the second air outlet 6 communicates with at least one of the first air inlet 70 and the second air inlet 71. Each of the first air curtain airflow P1 sucked from the first suction port 70 and the second air curtain airflow P2 sucked from the second suction port 71 is inside the base portion 4. The air curtain device 100 is configured to be supplied to at least one of the first air outlet 5 and the second air outlet 6 via the inside of the gate portion 1. Thereby, each of the 1st air curtain airflow P1 inhaled by the 1st inlet 70 and the 2nd air curtain airflow P2 inhaled by the 2nd inlet 71 does not leak outside, but the 1st blower outlet 5 or the second outlet 6 circulates, so that the circulation efficiency can be improved.

  Moreover, in 1st Embodiment, the air curtain apparatus 100 is comprised so that the gate part 1 may include the height adjustment part 10 which adjusts the length of the height direction of the support | pillar part 2 as mentioned above. Thereby, since the magnitude | size of the height direction of the air curtain apparatus 100 can be adjusted, the height of the air curtain apparatus 100 can be adjusted according to the height of the refrigerator compartment 101 grade | etc.,. As a result, it is possible to more effectively suppress the movement of heat or the movement of dust or the like between regions divided by the air curtain.

[Second Embodiment]
Next, with reference to FIGS. 1-4, the structure of the air curtain apparatus 300 by 2nd Embodiment is demonstrated. The air curtain device 300 according to the second embodiment is configured to be movable in addition to the configuration of the first embodiment. In addition, in the figure, the same code | symbol is attached | subjected to the part of the structure similar to the said 1st Embodiment.

(Structure of air curtain device)
In the second embodiment, as shown in FIG. 3, the base portion 40 includes a wheel 11 configured to be movable on the floor surface 102 (see FIG. 2). And are configured to move on the floor surface 102 together. Specifically, the base portion 40 is provided with a protruding portion 12 that protrudes in each of the X1 direction and the X2 direction at each end portion in the Y1 direction and the Y2 direction. That is, the base portion 40 is provided with four protruding portions 12. The wheel 11 is provided at the lower part of each of the four protrusions 12. The wheel 11 is an example of the “moving member” in the claims.

  As shown in FIG. 4, the inclined portion 18 has a movable structure. Specifically, when viewed from the Y direction, the inclined portion 18 has an up-down direction (Z1 direction or Z2 direction) with a connection point between the inclined portion 18 and the upper surface 4a (see FIG. 1) of the base portion 40 as a rotation center. It is comprised so that rotation is possible.

  As shown in FIG. 3, when the air curtain device 300 is fixed to the floor surface 102 (see FIG. 2), one side on the side away from the one end 18 a (the upper surface 4 a (see FIG. 1) of the inclined portion 18. The end 18a) abuts against the floor surface 102. When the inclined portion 18 and the floor surface 102 come into contact with each other, the air curtain device 300 is prevented from falling. As shown in FIG. 4, when the air curtain device 300 moves, the inclined portion 18 is fixed so as to be substantially horizontal with respect to the floor surface 102. Thereby, since the one end 18a of the inclined part 18 and the floor surface 102 do not contact | abut, the air curtain apparatus 300 can be moved smoothly. The inclined portion 18 is fixed so as to be flush with the upper surface 4a. The inclined portion 18 is fixed at a position sandwiched between the two protrusions 12 (the two protrusions 12 on the X1 direction side and the two protrusions 12 on the X2 direction side).

  The inclined portion 18 is fixed by a stopper 13 provided on the protruding portion 12. Specifically, the inclined portion 18 is fixed by a stopper 13 provided on each of the four protruding portions 12. Moreover, each stopper 13 is arrange | positioned so that the corner vicinity of the side spaced apart from the upper surface 4a (refer FIG. 1) of the base part 40 of the inclination part 18 may be supported from the downward direction.

  Each protrusion 12 is provided with a stopper controller 14 that controls the state of the stopper 13. Each stopper control unit 14 is provided on the Z1 direction side of the protrusion 12. In addition, each stopper control unit 14 has an inclined portion 18 side (for example, in the case of the stopper control portion 14 provided on the protruding portion 12 on the X1 direction side, the inclined portion 18 side on the X1 direction side), or the inclined portion 18. It is configured to be movable to the side opposite to the side.

  The stopper 13 is exposed (protruded) from the protruding portion 12 by moving the stopper control portion 14 toward the inclined portion 18 side. Moreover, as shown in FIG. 3, the stopper 13 is accommodated in the inside of the protrusion part 12 by moving the stopper control part 14 to the opposite side to the inclination part 18 side. When the stopper 13 is exposed (projected) from the protruding portion 12, when the inclined portion 18 is rotated, the stopper 13 and the inclined portion 18 interfere with each other. That is, the inclined portion 18 can be placed on the upper portion of the stopper 13. Moreover, when the stopper 13 is accommodated in the protrusion part 12, since the stopper 13 and the inclination part 18 do not interfere, the inclination part 18 can be rotated.

  Other configurations of the second embodiment are the same as those of the first embodiment.

(Effect of 2nd Embodiment)
In the second embodiment, as described above, the base portion 40 includes the wheel 11 configured to be movable on the floor surface 102, and the base portion 40 and the gate portion 1 are integrated with the floor by the wheel 11. The air curtain device 300 is configured to move on the surface 102. Thereby, in the refrigerator compartment 101 etc. in which the air curtain apparatus 300 is provided, the air curtain apparatus 300 can be easily moved. As a result, in the refrigerating room 101 or the like, the area to be divided by the air curtain can be easily changed.

  The remaining effects of the second embodiment are similar to those of the aforementioned first embodiment.

[Modification]
The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description of the embodiment but by the scope of claims for patent, and further includes all modifications (modifications) within the meaning and scope equivalent to the scope of claims for patent.

  For example, in the said 2nd Embodiment, although the example of the structure by which the stopper 13 is provided in the protrusion part 12 was shown, this invention is not limited to this. For example, as shown in FIG. 5, the protruding portion 12 may be provided with a hydraulic lift handle 15. Specifically, when the air curtain device 300 is fixed to the floor surface 102 (see FIG. 2), the wheel 11 (see FIG. 6) is not exposed to the outside by the base portion 40 (projecting portion 12). . In this case, the inclined portion 18 is in contact with the floor surface 102. Further, as shown in FIG. 6, by operating the hydraulic lift handle 15, members other than the wheels 11 of the air curtain device 300 are lifted upward (Z1 direction side), so 12) exposed from the bottom. Furthermore, since the inclined portion 18 is not in contact with the floor surface 102, the air curtain device 300 can move.

  Moreover, in the said 1st and 2nd embodiment, each of the 1st blower outlet 5 and the 2nd blower outlet 6 showed the example comprised so that both the 1st inlet 70 and the 2nd inlet 71 might be connected. However, the present invention is not limited to this. For example, the first air outlet 5 may be in communication with only the first air inlet 70, and the second air outlet 6 may be in communication with only the second air inlet 71.

  Specifically, as shown in FIG. 7, the first air curtain airflow P <b> 1 sucked by the first suction port 70 and the second air curtain airflow P <b> 2 sucked by the second suction port 71 do not intersect with each other. The interior of each of the base portion 4 and the gate portion 1 is partitioned by a partition plate 22. In this case, the air blower 9 is connected to each of the air flow distribution path that communicates the first suction port 70 and the first air outlet 5 and the air flow distribution path that communicates the second air intake 71 and the second air outlet 6. Is provided. In addition, FIG. 7 is a figure for demonstrating the modification of 1st Embodiment. Illustrations and explanations of modifications similarly configured in the second embodiment are omitted. In FIG. 7, the height adjusting unit 10 is not shown. Moreover, while the 1st blower outlet 5 communicates only with the 2nd suction inlet 71, the structure which the 2nd blower outlet 6 communicates only with the 1st suction inlet 70 may be sufficient.

  Moreover, in the said 1st and 2nd embodiment, although the example of the structure which circulates the air curtain airflow P via a pair of support | pillar part 2 was shown, this invention is not limited to this. For example, the air curtain airflow P may be discharged to the outside without being circulated through the pair of column portions 2.

  Specifically, as shown in FIG. 8, the first suction port 70 and the second suction port 71 are provided on the upper surface 4 a of the base portion 4. Further, a discharge port 16 is provided in each of the inclined portion 8 on the X1 direction side and the inclined portion 8 on the X2 direction side. And the 1st air curtain airflow P1 and the 2nd air curtain airflow P2 inhaled by each of the 1st suction inlet 70 and the 2nd suction inlet 71 are discharged | emitted from each discharge port 16. FIG. In this case, the pair of support columns 2 (the support columns 20 and the support columns 21) may have a prismatic shape in which no cavity is provided. Moreover, although not shown in figure, the air blower 9 is between the 1st inlet 70 and the outlet 16 (X1 direction side outlet 16), and the 2nd inlet 71 and the outlet 16 (X2 direction side outlet). 16), respectively. Each of the first air curtain airflow P1 sucked into the first suction port 70 and the second air curtain airflow P2 sucked into the second suction port 71 is discharged from the discharge port 16 to the outside by the blower 9. . A filter (not shown) for removing dust may be provided in the vicinity of each of the first suction port 70 and the second suction port 71. FIG. 8 is a diagram for explaining a modification of the first embodiment. Illustrations and explanations of modifications similarly configured in the second embodiment are omitted. Moreover, in FIG. 8, illustration of the height adjustment part 10 is abbreviate | omitted.

  Moreover, as shown in FIG. 9, the structure which provides the discharge port 16 between the 1st suction port 70 and the 2nd suction port 71 of the upper surface 4a of the base part 4 may be sufficient. In this case, the airflow from the discharge port 16 is discharged to the Z1 direction side and supplied to the first blowout port 5 and the second blowout port 6 (see FIG. 7 and the like). FIG. 9 is a diagram for explaining a modification of the first embodiment. Illustrations and explanations of modifications similarly configured in the second embodiment are omitted. In FIG. 9, the height adjusting unit 10 is not shown.

  In the second embodiment, as shown in FIG. 3 or 4, the base portion 40 is sucked into the first air curtain air flow P <b> 1 sucked into the first suction port 70 and the second suction port 71. Although the example of the structure which guides the 2nd air curtain airflow P2 only by the inclination part 18 was shown, this invention is not limited to this. For example, as shown in FIG. 10, by providing wind shielding portions 41 at both ends in the Y direction of the base portion 40, it is guided that the air flow is guided to the gate portion 1 by the wind shielding portions 41 in addition to the inclined portions 18. It may be configured to. Further, the wind shield portion 41 may be configured to be rotatable and fixed by a stopper or the like, similarly to the inclined portion 18.

  Further, in the first and second embodiments, the example in which the height adjusting unit 10 includes the screw mechanism is shown, but the present invention is not limited to this. For example, the height adjusting unit 10 may include a fluid cylinder or a bellows.

  In the first and second embodiments, the example in which the first suction port 70 and the second suction port 71 are provided in the inclined portion 8 (18) is shown, but the present invention is not limited to this. For example, the 1st suction inlet 70 and the 2nd suction inlet 71 may be provided in the upper surface 4a of the base part 4 (40).

  Moreover, in 1st and 2nd embodiment, although the air blower 9 showed the example of the structure provided in the inside of the support | pillar lower part 20b (support | pillar lower part 21b), this invention is not limited to this. For example, the air blower 9 may be configured to be provided inside the upper plate portion 3. In this case, a plurality of blowers 9 may be provided on each of the Y1 direction side and the Y2 direction side.

  In the first and second embodiments, the example of the configuration in which the two suction ports 7 (the first suction port 70 and the second suction port 71) are provided has been described, but the present invention is not limited to this. For example, only one suction port 7 may be provided on the inclined portion 8 (18) or the upper surface 4a.

  In the second embodiment, the example in which the inclined portion 18 and the upper surface 4a are flush with each other when the air curtain device 300 moves is shown, but the present invention is not limited to this. For example, there may be a step having a predetermined size between the inclined portion 18 and the upper surface 4a.

DESCRIPTION OF SYMBOLS 1 Gate part 1a Passage 2 Support part (a pair of support parts)
DESCRIPTION OF SYMBOLS 3 Upper plate part 4, 40 Base part 5 1st blower outlet 6 2nd blower outlet 7 Suction inlet 70 1st suction inlet 71 2nd suction inlet 8, 18 Inclination part 10 Height adjustment part 11 Wheel (moving member)
102 Floor P Air curtain airflow P1 1st air curtain airflow P2 2nd air curtain airflow

Claims (7)

A gate portion having a gate-shaped structure, including a pair of support columns extending in the vertical direction with a passage, and an upper plate portion connecting between the pair of support columns;
A base portion that supports the gate portion from below;
Provided adjacent to each other on the upper plate part with an interval equal to or less than the length of the column part in the direction passing through the gate part, and blown down toward the floor on which the base part is placed. A first air outlet and a second air outlet that form an air curtain airflow;
A suction port that sucks in the air curtain air current blown out from each of the first air outlet and the second air outlet, and is provided in the base portion with an interval in a direction passing through the gate portion; Air curtain device.   The suction port includes a first suction port that sucks in a first air curtain airflow blown down from the first air outlet, and a second suction port that sucks in a second air curtain airflow blown down from the second air outlet. The air curtain device according to claim 1. In the direction passing through the gate portion, the interval between the first inlet and the second inlet is configured to be larger than the interval between the first outlet and the second outlet.
The first air curtain airflow from the first air outlet is blown down to the side opposite to the side where the second air outlet is provided with respect to the first air outlet, toward the first air inlet. In addition, the second air curtain airflow from the second air outlet is opposite to the side where the first air outlet is provided with respect to the second air outlet toward the second air inlet. The air curtain device according to claim 2, wherein the air curtain device is configured to be blown down by the air. The base part includes an inclined part provided across the floor and the passageway,
The air curtain device according to claim 2 or 3, wherein each of the first suction port and the second suction port is provided in the inclined portion. Each of the first air outlet and the second air outlet is configured to communicate with at least one of the first air inlet or the second air inlet,
Each of the first air curtain airflow sucked from the first suction port and the second air curtain airflow sucked from the second suction port has an inside of the base portion and an inside of the gate portion. The air curtain device according to any one of claims 2 to 4, wherein the air curtain device is configured to be supplied to at least one of the first air outlet and the second air outlet. . The base portion includes a moving member configured to be movable on the floor surface,
The air curtain device according to claim 1, wherein the base member and the gate portion are integrally moved on the floor surface by the moving member.   The air curtain device according to any one of claims 1 to 6, wherein the gate portion includes a height adjusting portion that adjusts a length of the column portion in a height direction.

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