JP7103580B2 - Air supply device - Google Patents

Description

The present invention relates to an air supply device.

An air supply device that supplies conditioned air to each air supply target location of an air supply target such as a seat is known. Conventionally, when switching the air supply for each air supply target location, it is necessary to provide a damper or shutter for each air supply target location and switch the air supply by controlling the opening and closing of the damper or shutter.

For example, in Patent Document 1, air outlets are provided on the seat cushion and the seat back, respectively, and by opening and closing each air outlet with an opening / closing blade provided for each air outlet, air is blown to the seat cushion and the seat back. The ventilation sheet structure to be switched is disclosed.

Square root extraction No. 4-39106

When a drive unit such as a damper or a shutter is provided for each air supply target location, the number of drive units of the air supply device increases. Therefore, there is a problem that the risk of failure of the air supply device increases, and the maintenance frequency and cost increase.

In view of the above facts, an object of the present invention is to provide an air supply device capable of switching the supply of air to an air supply target location without providing a drive unit at each air supply target location.

The air supply device according to the first aspect is arranged along an air supply target object, and is rotatably attached to a fixed cylinder in which an air supply port is formed at each air supply target location and around the axis of the fixed cylinder. , An air supply means for supplying air to a rotary cylinder having a plurality of openings communicating with the air supply port in the circumferential direction at different rotation positions, and to the fixed cylinder and the rotary cylinder arranged inside. And a driving means for rotating the rotary cylinder.

According to the above configuration, the fixed cylinder is arranged along the air supply object, the rotating cylinder is rotatably attached around the axis of the fixed cylinder, and air is directed to the inner side of the fixed cylinder and the rotating cylinder. Air is supplied from the supply means. As a result, when the air supply port of the fixed cylinder and the opening of the rotating cylinder communicate with each other, air is supplied to each air supply target location.

Here, a plurality of openings are formed in the circumferential direction of the rotating cylinder, and communicate with the air supply port at different rotation positions. Therefore, by rotating the rotary cylinder to a different rotation position by the driving means, it is possible to communicate the specific air supply port and the opening, or to communicate all the air supply port and the opening. As a result, it is not necessary to provide a damper or the like at each air supply target location as in the conventional case, and the air supply can be switched according to the usage state of the air supply target by simply rotating the rotary cylinder with the drive means. ..

The air supply device according to the second aspect is the air supply device according to the first aspect , the fixed cylinder is an outer cylinder, and the rotary cylinder is rotatably inserted inside the outer cylinder. It is a cylinder.

According to the above configuration, the rotation mechanism can be simplified by fixing the outer cylinder and rotating the inner cylinder as compared with the rotation mechanism in which the inner cylinder is fixed and the outer cylinder is rotated.

The air supply device according to the third aspect is the air supply device according to the first or second aspect , and is the length direction of the fixed cylinder corresponding to the lower part of the plurality of seats which are the air supply objects. A plurality of the air supply ports are formed on the upper surface of the air supply port, and the rotation of the rotary cylinder switches whether to supply air to each of the air supply ports .

According to the above configuration, it is possible to correspond to all the assumed air supply patterns by switching whether to supply air to each of the air supply ports by rotating the rotary cylinder .

According to the building according to the present invention, it is possible to switch the supply of air to the air supply target location without providing a drive unit for each air supply target location.

(A) is a side sectional view showing a state in which the air supply device of the first embodiment is attached to a seat, and (B) is a normal sectional view. It is a perspective view which shows the air supply damper of the air supply device of 1st Embodiment. It is an exploded perspective view which shows the air supply damper of the air supply device of 1st Embodiment. (A) is a sectional view showing an air supply damper of the air supply device of the first embodiment, and (B) is a developed view showing a rotary cylinder of the air supply damper. It is a front sectional view which shows the state which attached the air supply device of 2nd Embodiment to a seat. (A) is a sectional view showing an air supply damper of the air supply device of the second embodiment, and (B) is a developed view showing a rotary cylinder of the air supply damper.

<First Embodiment>
Hereinafter, the air supply device according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 4.

(structure)
As shown in FIGS. 1A and 1B, the air supply device 10 of the present embodiment is attached to a seat 12 as an example of an air supply object installed in, for example, a theater or a hall. .. The seat 12 has a seat surface 12A and a backrest 12B, and in the present embodiment, two seats 12 are connected in series.

Each seat 12 has a cushion portion 14 provided from the seat surface 12A to the backrest 12B, a support portion 16 for supporting the cushion portion 14, and a hollow portion 18 formed inside, respectively. An air supply device 10 is attached to the cavity 18.

The cushion portion 14 of the seat 12 has a two-layer structure composed of, for example, a net-like body layer 14A formed by molding a resin material into a spring shape and a non-woven fabric layer 14B made of chemical fibers, and is capable of allowing air to pass through. There is. A cover sheet (not shown) having breathability is provided on the surface of the cushion portion 14.

Further, the support portion 16 of the seat 12 is a grid-like member having a plurality of holes 16A, and the air supplied from the air supply device 10 into the cavity portion 18 is supplied to the holes 16A and the cushion portion 14 of the support portion 16. It is said that it can be supplied to a person who passes through the inside and sits on the seat surface 12A of the seat 12.

The air supply device 10 includes an air supply damper 20, an air supply means 22 for supplying air to the air supply damper 20, and a duct 24 for connecting the air supply damper 20 and the air supply means 22. Further, the air supply damper 20 has an outer cylinder 26 as a fixed cylinder and an inner cylinder 28 as a rotating cylinder, each of which has a continuous direction of the seats 12 in the length direction.

As shown in FIGS. 2 and 3, the outer cylinder 26 is a cylinder in which both end faces in the length direction are closed, and a duct 24 is connected to the lower surface of one end portion in the length direction. An insertion hole 30 through which the drive shaft 35A of the drive means 35, which will be described later, is inserted is formed on the other end surface of the outer cylinder 26 in the length direction.

Further, on the upper surface of the outer cylinder 26, two rectangular air supply ports 32 and 34 are formed along the length direction. As shown in FIG. 1 (B), the outer cylinder 26 is arranged so as to straddle the two seats 12 in the cavity 18, and the two air supply ports 32 and 34 are opened at the lower portions of the two seats 12, respectively. is doing. That is, air supply ports 32 and 34 are formed for each seat 12. The outer cylinder 26 is fixed in the cavity 18 of the seat 12 by a fixing means (not shown).

On the other hand, as shown in FIGS. 2 and 3, the inner cylinder 28 is a regular square cylinder having both end faces in the length direction open, and is inserted inside the outer cylinder 26 and has the same axis as the outer cylinder 26. It is said that. Further, a drive shaft 35A of a drive means 35 such as a motor shown in FIG. 1 is fixed to the axis of the inner cylinder 28, whereby the inner cylinder 28 can rotate around the axis of the outer cylinder 26. There is.

The drive means 35 is installed outside the outer cylinder 26 in the hollow portion 18 of the seat 12, and as shown in FIGS. 2 and 3, the drive shaft 35A of the drive means 35 is the insertion hole 30 of the outer cylinder 26. It is inserted into and fixed to the axial center of the inner cylinder 28.

Further, a plurality of (three in this embodiment) flanges 36 are provided on the outer peripheral surface of the inner cylinder 28. The flanges 36 are provided at intervals in the length direction of the inner cylinder 28 so as to partition the openings 38 described later, and the outer diameter is substantially the same as the inner diameter of the outer cylinder 26. The cylinder 28 is in contact with the inner peripheral surface of the outer cylinder 26 at the flange 36 portion.

A rubber member or the like (not shown) may be attached to the outer peripheral surface of the flange 36 in order to prevent a gap from being formed between the outer peripheral surface of the flange 36 and the inner peripheral surface of the outer cylinder 26. Further, a guide groove (not shown) for guiding the outer peripheral surface of the flange 36 may be provided on the inner peripheral surface of the outer cylinder 26.

Further, in the length direction and the circumferential direction of the outer peripheral surface of the inner cylinder 28, the size is substantially the same as the air supply ports 32 and 34 of the outer cylinder 26, and the air supply ports 32 and 34 are arranged at different rotation positions of the inner cylinder 28. Four communicating openings 38 are formed. Here, the opening 38 of the inner cylinder 28 has 360 ° / 2 ⁿ in the circumferential direction of the inner cylinder 28 when n air supply ports 32 and 34 are formed in the length direction of the outer cylinder 26 (n is an integer). It is formed at intervals of.

That is, in the present embodiment, since the air supply ports 32 and 34 are two (n = 2), the four openings 38 are formed at intervals of 90 ° in the circumferential direction of the inner cylinder 28. In the present embodiment, since the inner cylinder 28 is a regular square cylinder, when the openings 38 are formed at intervals of 90 ° in the circumferential direction of the inner cylinder 28, the openings 38 are formed in the four flat portions of the inner cylinder 28. Is formed.

Specifically, as shown in FIGS. 4A and 4B, an opening 38 corresponding to the air supply port 32 is formed in the first plane 28A and the second plane 28B of the inner cylinder 28. An opening 38 corresponding to the air supply port 34 is formed in the second plane 28B and the third plane 28C of the inner cylinder 28. The opening 38 is not formed in the fourth plane 28D of the inner cylinder 28.

As shown in FIG. 1, the air supply means 22 is, for example, an air conditioner, which generates conditioned air (cold air or warm air) and supplies conditioned air to the duct 24 by a fan (not shown). Further, an air flow amount adjusting means 42 is provided below the floor 40 on which the seat 12 is installed.

The air volume adjusting means 42 is a VAV, a variable air volume fan, or the like provided in the middle of the duct 24, and the air volume of the conditioned air supplied from the air supply means 22 to the duct 24 can be adjusted by the air volume adjusting means 42. It is said that.

One end of the duct 24 is connected to the air supply means 22 and the air volume adjusting means 42 under the floor 40, and the other end of the duct 24 supplies air on the floor 40 through a through hole 40A formed in the floor 40. It is connected to the outer cylinder 26 of the damper 20.

Further, the cushion portion 14 on the seat surface 12A of the two seats 12 is provided with the detection means 44, respectively. The detecting means 44 is, for example, a weight sensor, a reflective infrared sensor, a pressure sensor, a thermometer for measuring the surface temperature of the seat surface 12A, or the like, and whether or not a person is sitting on the cushion portion 14 of the seat 12 by the detecting means 44. That is, it is possible to detect the presence state.

Further, the air supply device 10 determines the seated state based on the detection result of the detection means 44, the output of the drive means 35 for rotating the inner cylinder 28 of the air supply damper 20, and the air flow amount adjusting means 42. A control means 46 for controlling the output is provided.

(Action, effect)
The conditioned air generated by the air supply means 22 is supplied into the outer cylinder 26 of the air supply damper 20 through the duct 24, and is supplied into the inner cylinder 28 through the open end of the inner cylinder 28. Then, when the opening 38 of the inner cylinder 28 and the air supply ports 32 and 34 of the outer cylinder 26 communicate with each other, air is supplied to the cavity 18 of each seat 12 through the opening 38 and the air supply ports 32 and 34. To.

Here, according to the present embodiment, four openings 38 are formed in the inner cylinder 28, and the openings 38 communicate with the air supply ports 32 and 34 at different rotation positions. In particular, in the present embodiment, two openings 38 corresponding to the air supply ports 32 and 34 are formed at intervals of 90 ° in the circumferential direction of the inner cylinder 28.

Therefore, by rotating the inner cylinder 28 by the drive means 35, only the air supply port 32 communicates with the opening 38, only the air supply port 34 communicates with the opening 38, and the air supply ports 32, 34. It is possible to correspond to all four kinds of assumed air supply patterns, that is, a state in which both of the two are in communication with the opening 38, and a state in which neither of the air supply ports 32 and 34 is in communication with the opening 38. As a result, it is not necessary to provide a damper or the like for each seat 12 as in the conventional case, and the air supply can be switched for each seat 12 simply by rotating the inner cylinder 28 by one driving means 35.

Further, according to the present embodiment, the air supply damper 20 of the air supply device 10 fixes the outer cylinder 26 in the cavity 18 of the seat 12, and drives the inner cylinder 28 arranged inside the outer cylinder 26 as a driving means. It is rotated by 35. Therefore, the structure can be simplified as compared with a rotation mechanism in which the inner cylinder is fixed and the outer cylinder is rotated.

Further, according to the present embodiment, the output of the detecting means 44 for detecting the presence state, the blowing amount adjusting means 42 for adjusting the blowing amount of the conditioned air, and the output of the driving means 35 and the output of the blowing amount adjusting means 42 are controlled. A control means 46 is provided. Therefore, the amount of air blown and the air supply location can be adjusted according to the number and position of the people present, that is, the usage state of the seat 12, and the fan power of the air supply means 22 can be suppressed.

<Second Embodiment>
Next, the air supply device according to the second embodiment of the present invention will be described with reference to FIGS. 5 and 6. The description of the same configuration as that of the air supply device 10 of the first embodiment will be omitted.

(structure)
As shown in FIG. 5, the air supply device 50 of the present embodiment is attached to a seat 52 as an example of an air supply object. The seat 52 has the same configuration as the seat 12 of the first embodiment, and in this embodiment, three seats 52 are connected in succession.

Similar to the air supply device 10 of the first embodiment, the air supply device 50 includes an air supply damper 54, an air supply means (not shown) for supplying air to the air supply damper 54, and an air supply damper 54 and an air supply means. It has a duct 56 and a duct 56 for connecting the above. Further, the air supply damper 54 has an outer cylinder 58 as a fixed cylinder and an inner cylinder 60 as a rotating cylinder, each of which has a continuous direction of the seats 52 in the length direction.

The outer cylinder 58 is a cylinder with both end faces closed in the length direction, and three rectangular air supply ports 62, 64, 66 are formed on the upper surface along the length direction. Further, a duct 56 is connected between the air supply port 62 and the air supply port 64 on the lower surface of the outer cylinder 58.

The outer cylinder 58 is arranged so as to straddle the three seats 52 in the cavity 68 of the seat 52, and the three air supply ports 62, 64, 66 are opened at the lower portions of the three seats 52, respectively. That is, air supply ports 62, 64, 66 are formed for each seat 52.

Similar to the inner cylinder 28 of the first embodiment, the inner cylinder 60 has both end faces in the length direction open and is inserted inside the outer cylinder 58. Further, the inner cylinder 60 has the same axial center as the outer cylinder 58, and can be rotated around the axis of the outer cylinder 58 by the driving means 70 shown in FIG.

As shown in FIG. 6B, an air introduction port 72 is formed at a position corresponding to the duct 56 on the outer peripheral surface of the inner cylinder 60. Further, the inner cylinder 60 is provided with a plurality of flanges 74 (five in this embodiment) that partition the air introduction port 72 and each opening 76 described later, with a gap in the length direction. The inner cylinder 60 is in contact with the inner peripheral surface of the outer cylinder 58 at the portion.

Further, as shown in FIG. 6A, in the present embodiment, the inner cylinder 60 is a regular octagonal cylinder, and twelve pieces communicating with the air supply ports 62, 64, 66 at different rotation positions of the inner cylinder 60. The opening 76 of the outer peripheral surface is formed in the length direction and the circumferential direction of the outer peripheral surface. In the present embodiment, since the air supply ports 62, 64, and 66 are three (n = 3), the openings 76 are formed at intervals of 360 ° / 2 ⁿ = 45 ° in the circumferential direction of the inner cylinder 60. There is. That is, openings 76 are formed in the eight flat portions of the inner cylinder 60.

Specifically, as shown in FIGS. 6A and 6B, an opening 76 corresponding to the air supply port 62 is formed in the first plane 60A to the fourth plane 60D of the inner cylinder 60. An opening 76 corresponding to the air supply port 64 is formed in the first plane 60A, the second plane 60B, the fifth plane 60E, and the sixth plane 60F. Further, an opening 76 corresponding to the air supply port 66 is formed in the first plane 60A, the third plane 60C, the sixth plane 60F, and the seventh plane 60G of the inner cylinder 60, and the eighth plane 60H of the inner cylinder 60 is formed. No opening 76 is formed in the.

(Action, effect)
The conditioned air generated by the air supply means (not shown) is supplied into the outer cylinder 58 of the air supply damper 54 through the duct 56, and is supplied into the inner cylinder 60 through the air introduction port 72 of the inner cylinder 60. .. Then, when the opening 76 of the inner cylinder 60 and the air supply ports 62, 64, 66 of the outer cylinder 58 communicate with each other, the hollow portion 68 of each seat 52 passes through the opening 76 and the air supply ports 62, 64, 66. Is supplied with air.

Here, according to the present embodiment, 12 openings 76 are formed in the inner cylinder 60, and the openings 76 communicate with the air supply ports 62, 64, 66 at different rotation positions. In particular, in the present embodiment, four openings 76 corresponding to the air supply ports 62, 64, and 66 are formed at intervals of 45 ° in the circumferential direction of the inner cylinder 60.

Therefore, by rotating the inner cylinder 60 by the drive means 70, only one of the air supply ports 62, 64, 66 communicates with the opening 76, and two of the air supply ports 62, 64, 66 Is in communication with the opening 76, all three of the air supply ports 62, 64, 66 are in communication with the opening 76, and none of the air supply ports 62, 64, 66 is in communication with the opening 76. It is possible to correspond to all eight types of air supply patterns that are assumed to be in the state.

Further, in the first embodiment, the duct 24 is connected to one end in the length direction of the outer cylinder 26, whereas in the present embodiment, the air supply port 62 and the air supply port 64 on the lower surface of the outer cylinder 58 A duct 56 is connected between the two, and an air introduction port 72 is formed at a position corresponding to the duct 56 on the outer peripheral surface of the inner cylinder 60.

By changing the connection position of the duct 56 to the air supply damper 54 in this way, the duct 56 can be arranged while avoiding, for example, a beam provided under the floor 40, and the air supply device 50 can be installed. The degree of freedom of the place can be increased.

<Other Embodiments>
Although the first embodiment and the second embodiment of the present invention have been described above, the present invention is not limited to such an embodiment, and various other embodiments are possible within the scope of the present invention. ..

For example, in the above embodiment, the air supply target is seats 12 and 52, and air is supplied to each of the seats 12 and 52 by the air supply devices 10 and 50. However, the air supply target is the seat 12. , 52 is not limited to, and may be a desk, a partition (partition), or the like.

Similarly, in the first embodiment, two seats 12 are connected in series, and in the second embodiment, three seats 52 are connected in series, but the number of seats (air supply objects) is three or more. It may be configured to supply air to a plurality of places of one seat (air supply object).

Further, in the above embodiment, the outer cylinders 26 and 58 are fixed cylinders, and the inner cylinders 28 and 60 are rotary cylinders. However, the inner cylinder may be a fixed cylinder, and the outer cylinder arranged outside the inner cylinder may be a rotating cylinder. Further, the cross-sectional shapes of the outer cylinders 26 and 58 and the inner cylinders 28 and 60 are not limited to the above-described embodiment, and the inner cylinder may be a cylinder or the outer cylinder may be a square cylinder.

Further, in the first embodiment, the air supply device 10 is provided with the detecting means 44 for detecting the presence state and the air blowing amount adjusting means 42 for adjusting the air blowing amount of the conditioned air. However, the detecting means 44 and the air blowing amount adjusting are provided. The means 42 is not an indispensable configuration, and may be configured to switch the air supply regardless of the presence state. Further, the detecting means 44 may be configured to detect whether or not the seat surface is folded in, for example, a foldable seat, instead of whether or not a person is sitting in the seat 12.

10, 50 Air supply device 12, 52 seats (air supply target)
22 Air supply means 26, 58 Outer cylinder (fixed cylinder)
28, 60 Inner cylinder (rotary cylinder)
32, 34, 62, 64, 66 Air supply port 35, 70 Drive means 38, 76 Opening

Claims (3)

A fixed cylinder that is arranged along the air supply target and has an air supply port formed at each air supply target location,
A rotating cylinder that is rotatably inserted inside the fixed cylinder and has a plurality of openings communicating with the air supply port in the circumferential direction at different rotational positions.
An air supply means that supplies air from the longitudinal end of the fixed cylinder and supplies air from the open end of the rotary cylinder into the rotary cylinder.
A driving means for rotating the rotary cylinder and
Air supply device with. The central portion of the rotary cylinder is fixed to the rotary shaft and is fixed to the rotary shaft.
The air supply device according to claim 1, wherein the driving means is a motor connected to the rotating shaft to rotate the rotating shaft. A plurality of the air supply ports are formed on the upper surface in the length direction of the fixed cylinder corresponding to the lower part of the plurality of seats which are the air supply objects.
The air supply device according to claim 1 or 2, wherein air is supplied or not supplied to each air supply port by the rotation of the rotary cylinder.

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