JP2022156649A - seat - Google Patents

Abstract

To provide a seat capable of increasing comfort of a seated person and facilitating an operation.SOLUTION: A seat (a sofa S) comprises a seat cushion 100, a backrest cushion 200, a base SB including a lower support part 310 and a rear support part 320, a blower, and an operation part 20 for a seated person operating the blower. The seat cushion 100 is detachably attached to the lower support part 310, and the backrest cushion 200 is detachably attached to the rear support part 320. The seat cushion 100 and the backrest cushion 200 include cushion ventilation paths for passing an air flow formed by the blower, the cushion ventilation paths having ventilation openings 131 and 231 opened toward the seated person. The operation part 20 is provided at an armrest SA located at least one of the left and right of the seat cushion 100 of the base part SB and projecting upward the seat cushion 100.SELECTED DRAWING: Figure 1

Description

The present invention relates to a seat having a seat on which a person sits and a backrest.

As seats having a seat portion and a backrest, sofas and armchairs for home use, seats for vehicles, and the like are known (see, for example, Patent Document 1).

JP 2020-192843 A

By the way, it is desirable for the seat to enhance the comfort of the person sitting on the seat (seated person). In addition, it is desirable that the seat is easy to perform necessary operations.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a seat that can enhance the comfort of a seated person.
Another object is to facilitate operation.

A seat for achieving the above object comprises a base portion having a seat cushion, a back cushion, a lower support for supporting the seat cushion from below, and a rear support for supporting the back cushion from behind. , a blower, and an operation unit for a seated person to operate the blower, wherein the seat cushion is attachable to and detachable from the lower support, and the backrest cushion is attached to the rear support. At least one of the seat cushion and the backrest cushion is a cushion ventilation passage through which the airflow generated by the blower passes, and has a ventilation opening that opens toward the seated person. The operation part is located on the left or right side of the base part or on at least one of the left and right sides of the seat cushion and protrudes above the seat cushion. , is provided in.

According to such a configuration, air can be blown out or sucked from the seat cushion and the backrest cushion, so that the comfort of the seated person can be enhanced. Further, since the operating portion is provided on the side surface or side portion of the base portion, it is possible to facilitate the operation.

In the above-described seat, the ventilation opening may be provided at a position spaced by a predetermined distance or more to the left or right from the left-right center of the seat cushion or the backrest cushion.

According to this, since the ventilation opening can be provided at a position left and right away from the center of the seat cushion and the backrest cushion, it is possible to prevent the ventilation opening from being blocked by the seated person. As a result, the air can be well blown out or drawn in from the seat cushion and the backrest cushion, so that the comfort of the seated person can be enhanced.

In the seat described above, the base portion has the side portion, and the side portion is a side ventilation passage through which an air flow formed by the blower passes, the side ventilation passage opening toward the seated person. It can be configured to have a path.

According to this, air can be blown out or sucked in from the sides as well. This can further enhance the comfort of the seated person.

In the seat described above, the blower may be arranged inside the base portion.

In the above-described seat, the base portion has a first base portion ventilation path that communicates the blower and the cushion ventilation path, and one of the first base portion ventilation path and the cushion ventilation path is provided at an end. A tubular portion is provided, and the cushion air passage and the first base air passage are connected by the tubular portion entering the other of the first base air passage and the cushion air passage. can do.

In the seat described above, the base portion has a first base portion ventilation passage that communicates the blower and the cushion ventilation passage, and the first base portion ventilation passage opens toward the cushion ventilation passage. The cushion air passage has a second opening that opens toward the first base air passage, and the cushion air passage and the first base air passage are connected to the first opening. It can be set as the structure which communicates by the said 2nd opening facing each other.

In the seat described above, the base portion is a second base portion ventilation passage that communicates the outside of the base portion with the blower, and the second base portion ventilation passage opens rearward at a lower portion of the base portion. can be configured to have

According to this, the opening of the second base air passage opening to the outside can be arranged at an inconspicuous position on the seat.

The seat may include an electric wire for supplying electric power to the blower, the base portion may have the side portion, and the electric wire may be drawn rearward from the side portion. .

The seat may be provided with electric wires for supplying electric power to the blower, and the electric wires may be drawn out rearward from the left and right center portions of the base portion.

In the seat described above, the blower is provided so as to blow air toward the seated person from the ventilation opening, and the seat has a position in which air is blown out toward the seated person and a direction in which air is blown out toward the seated person. can be configured to further include a change mechanism capable of changing at least one of.

According to this, it is possible to change the air blowing position and the air blowing direction, so that the comfort of the seated person can be further enhanced.

In the seat described above, the operation section may be configured to be capable of operating the changing mechanism.

According to this, the seated person can change the position and the direction of air blowing according to the preference of the seated person by operating the operation unit, so that the comfortable feeling of the seated person can be further enhanced. can be done.

In the seat described above, the operation portion may be an operation switch for operating the changing mechanism, and may be configured to have an operation switch including four switches arranged in a cross shape.

In the seat described above, the base portion may have the side portion, the side portion may be an armrest, and the operation portion may be provided on an upper surface of the armrest.

According to this, the operation can be made easier.

ADVANTAGE OF THE INVENTION According to this invention, a seated person's comfortable feeling can be improved. In addition, the operation can be facilitated.

In addition, by providing the ventilation opening at a position spaced from the left or right center of the seat cushion or the backrest cushion by a predetermined distance or more, the comfort of the seated person can be enhanced.

Further, by providing a side air passage opening toward the seated person in the side portion of the base portion, it is possible to further enhance the comfort of the seated person.

Further, by configuring the second base ventilation path to open rearward at the lower portion of the base, the opening of the second base ventilation path to the outside can be arranged at an inconspicuous position on the seat. .

Further, by providing the changing mechanism, the comfort of the seated person can be further enhanced.

Further, by configuring the changing mechanism to be operable by the operating portion, it is possible to further enhance the comfort of the seated person.

Further, by providing the operating portion on the upper surface of the armrest, the operation can be made easier.

1 is a perspective view showing a sofa as an example of a seat according to an embodiment; FIG. It is an exploded perspective view of a sofa. FIG. 4 is a cross-sectional view showing a cushion airway and a configuration related to the cushion airway; FIG. 4 is a cross-sectional view showing a side air passage and a configuration related to the side air passage; It is the front view (a) of a seat part cushion, and the front view (b) of a backrest cushion. FIG. 5 is a cross-sectional view for explaining the connection between the cushion airway and the first base airway in the first embodiment; It is a figure which shows the operation part of 1st Embodiment. It is the perspective view (a) which shows the structure with which the electric wire was pulled out from the armrest, and the perspective view (b) which shows the structure with which the electric wire was pulled out from the left-right central part of the base part. 8A and 8B are cross-sectional views (a) and (b) for explaining the connection between the cushion airway and the first base airway in the second embodiment; FIG. It is a sectional view showing a sofa of a 3rd embodiment. It is a figure which shows the operation part of 3rd Embodiment. It is sectional drawing (a), (b) which shows operation|movement of the change mechanism of 3rd Embodiment. It is a sectional view showing a sofa of a 4th embodiment. It is sectional drawing (a), (b) which shows operation|movement of the change mechanism of 4th Embodiment. FIG. 11 is a perspective view showing a sofa of a first modified example; FIG. 11 is a perspective view showing a sofa of a second modified example;

Next, a first embodiment will be described. In this specification, front and rear, left and right, and up and down refer to front and back, left and right, and up and down as viewed from the seated person.
As shown in FIG. 1, the seat according to the embodiment is configured as a two-seater sofa S for home use. The sofa S includes a seat body S0, an armrest SA as an example of a side portion, and a headrest SH. The seat body S0 has a seat portion S1 on which a person sits and a backrest S2.

As shown in FIG. 2, the seat portion S1 includes two seat cushions 100 and a lower support portion 310 that supports the seat cushion 100 from below. The two seat cushions 100 are arranged side by side. The seat cushion 100 is placed on the lower support portion 310 for use, and is detachable from the lower support portion 310 .

The backrest S2 includes two backrest cushions 200 and a rear support portion 320 that supports the backrest cushions 200 from behind. The two backrest cushions 200 are arranged side by side. The backrest cushion 200 is placed in front of the rear support portion 320 for use, and is detachable from the rear support portion 320 .

The armrests SA are positioned on the left and right sides of the seat portion S1 and protrude above the seat portion S1. Specifically, the left armrest SA is positioned to the left of the left seat cushion 100 and the right armrest SA is positioned to the right of the right seat cushion 100 . Each armrest SA protrudes above the upper surface of the seat cushion 100 placed on the lower support 310 (see FIG. 1).

The armrest SA is detachable from the seat portion S1 and the backrest S2 (seat body S0). Specifically, the armrest SA can be attached to and detached from the lower support section 310 and the rear support section 320 . After being attached to the seat body S0, the armrest SA is fixed to at least one of the lower support portion 310 and the rear support portion 320 with screws (not shown).

The headrest SH is a part that supports the part above the neck of the seated person. The headrest SH supports at least one of the neck and head of the seated person. Two headrests SH are provided side by side in correspondence with the left backrest cushion 200 and the right backrest cushion 200, respectively. The headrest SH is detachable from the backrest S2. Specifically, the headrest SH is detachable from the rear support portion 320 .

In this embodiment, the left and right armrests SA, the left and right headrests SH, the lower support portion 310 and the rear support portion 320 constitute a base portion SB. In other words, the base portion SB has left and right armrests SA, a headrest SH, a lower support portion 310 and a rear support portion 320 . Furthermore, the sofa S is configured with two seat cushions 100, two back cushions 200, and a base portion SB.

As shown in FIG. 3, the sofa S further includes a blower 10 and an operating section 20 (see FIG. 1). Here, in this embodiment, the sofa S has a substantially symmetrical structure, so the structure of the left portion of the sofa S, including the left seat cushion 100 and the backrest cushion 200, will be mainly described below. .

The blower 10 is a device that blows out air by rotating an impeller, and is arranged inside the base portion SB. Specifically, the blower 10 is arranged inside the rear support portion 320 . In this embodiment, the blower 10 includes a first blower 11, a second blower 12, and a third blower 13 (see FIG. 4).

The first blower 11 is located inside the rear support portion 320 and behind the seat cushion 100 . The second blower 12 is located inside the rear support 320 and behind the back cushion 200 . The second blower 12 is arranged above the first blower 11 . The third blower 13 shown in FIG. 4 is arranged inside the rear support portion 320 and in the vicinity of the left-right central portion of the rear support portion 320 .

Returning to FIG. 3 , the seat cushion 100 includes a first cushion material 110 and a first skin 120 covering the first cushion material 110 . The first cushion material 110 has a seat cushion air passage 130 as a cushion air passage. The seat cushion air passage 130 is an air passage through which the air flow formed by the blower 10, specifically the first blower 11, passes.

The seat cushion air passage 130 has a plurality of seat ventilation openings 131 as ventilation openings and a seat connection opening 132 . The seat ventilation opening 131 is open on the upper surface of the first cushion material 110 toward the seated person above. The seat portion connection opening 132 opens toward the rear rear support portion 320 on the rear surface of the first cushion member 110 . The seat ventilation openings 131 and the seat connection openings 132 communicate with each other.

As shown in FIG. 5( a ), the seat ventilation opening 131 is provided at a position avoiding the left and right central portions of the seat cushion 100 . More specifically, the seat ventilation opening 131 is provided at a position spaced apart by a predetermined length L1 or more to the left or right from the left-right center C1 of the seat cushion 100 . The predetermined length L1 can be, for example, approximately one third of the length from the left-right center C1 of the seat cushion 100 to the left or right end.

The first skin 120 has air permeability by forming a plurality of fine through holes at positions corresponding to the seat ventilation openings 131, or is made of a material having air permeability.

As shown in FIG. 3 , the backrest cushion 200 includes a second cushion material 210 and a second skin 220 covering the second cushion material 210 . The second cushion material 210 has a back cushion air passage 230 as a cushion air passage. The backrest cushion air passage 230 is an air passage through which the airflow generated by the blower 10, specifically the second blower 12, passes.

The backrest cushion ventilation path 230 has a plurality of backrest ventilation openings 231 as ventilation openings and a backrest connecting opening 232 . The backrest ventilation opening 231 is open on the front surface of the second cushion material 210 toward the seated person in front. The backrest connection opening 232 opens toward the rear support portion 320 on the rear surface of the second cushion material 210 . The plurality of backrest ventilation openings 231 and the backrest connection openings 232 communicate with each other.

As shown in FIG. 5( b ), the backrest ventilation opening 231 is provided at a position avoiding the left and right central portions of the backrest cushion 200 . Specifically, the backrest ventilation opening 231 is provided at a position spaced apart by a predetermined length L2 or more to the left or right from the left-right center C2 of the backrest cushion 200 . The predetermined length L2 can be, for example, about one-third of the length from the left-right center C2 of the backrest cushion 200 to the left or right end.

The second skin 220 is breathable by forming a plurality of fine through-holes at positions corresponding to the backrest ventilation openings 231, or is made of a breathable material.

As shown in FIG. 4 , each armrest SA includes a padding material 410 and a third skin 420 covering the padding material 410 . The padding 410 has side vents 430 . The side air passage 430 is an air passage through which the air flow formed by the blower 10, specifically the third blower 13, passes.

The side vent passage 430 has a plurality of side vent openings 431 and side connecting openings 432 . The side ventilation openings 431 and the side connection openings 432 are opened toward the left and right inner sides on the left and right inner surfaces of the pad material 410 . The side ventilation openings 431 open toward the seated occupant. The side connection opening 432 opens toward the rear support 320 behind the side ventilation opening 431 . The plurality of side ventilation openings 431 and the side connection openings 432 communicate with each other.

The third skin 420 has air permeability by forming a plurality of fine through holes at positions corresponding to the side ventilation openings 431, or is made of a material having air permeability.

As shown in FIGS. 3 and 4, the base portion SB has a blower accommodation chamber 330, a first base portion ventilation passage 340, a second base portion ventilation passage 350, and a third base portion ventilation passage 360. ing.

The blower accommodation chamber 330 is a portion in which the blower 10 is arranged, and is provided inside the rear support portion 320 . The blower accommodation chamber 330 includes a first blower accommodation chamber 331 in which the first blower 11 is arranged, a second blower accommodation chamber 332 in which the second blower 12 is arranged, and a third blower accommodation chamber in which the third blower 13 is arranged. chamber 333;

As shown in FIG. 3, the first base air passage 340 is an air passage that allows the blower 10 and the cushion air passages 130, 230 to communicate with each other. Specifically, the first base air passage 340 is composed of a first duct 341 and a second duct 342 .

The first duct 341 communicates the first blower 11 and the seat cushion air passage 130 . Specifically, the first duct 341 communicates between the first blower housing chamber 331 in which the first blower 11 is arranged and the seat cushion air passage 130 . As shown in FIG. 6, the first duct 341 has a first tubular portion 341A as a tubular portion protruding from the front surface of the rear support portion 320 at its front end. The first duct 341 of the seat cushion ventilation path 130 and the first base ventilation path 340 is arranged such that the first tubular part 341A is positioned in the seat of the seat cushion ventilation path 130 when the seat cushion 100 is attached to the base part SB. It is connected by entering into the connection opening 132 .

The second duct 342 communicates the second blower 12 with the backrest cushion air passage 230 . Specifically, the second duct 342 communicates the second blower housing chamber 332 in which the second blower 12 is arranged with the backrest cushion air passage 230 . The second duct 342 has a second tubular portion 342A as a tubular portion that bends forward and protrudes from the front surface of the rear support portion 320 at its upper end. The second duct 342 of the back cushion air passage 230 and the first base air passage 340 is connected to the back connection opening 232 of the back cushion air passage 230 when the back cushion 200 is attached to the base SB. connected by entering.

Returning to FIG. 3 , the second base portion ventilation path 350 is a ventilation path that communicates the outside of the base portion SB with the blower 10 . Specifically, the second base air passage 350 communicates the outside of the base SB with the blower housing chamber 330 . The second base air passage 350 has a base opening 351 that opens rearward under the base SB. The base opening 351 may be exposed on the surface of the base SB (sofa S), or may be covered with a breathable cover or filter.

The second base air passage 350 includes a first communication passage 352 that communicates between the base opening 351 and the first blower accommodation chamber 331, and a second communication passage that communicates the first blower accommodation chamber 331 and the second blower accommodation chamber 332. It has a communication path 353 . Furthermore, as shown in FIG. 4 , the second base air passage 350 has a third communication passage 354 that communicates the second communication passage 353 with the third blower housing chamber 333 .

The third base air passage 360 is an air passage that connects the third blower housing chamber 333 in which the third blower 13 is arranged and the side air passage 430 . The third base air passage 360 consists of ducts, and includes a left communication passage 361 that communicates the third blower housing chamber 333 and the left side air passage 430, and a third blower housing chamber 333 and the right side air passage. 430 and a right communication passage 362 that communicates with 430 .

The left communication passage 361 and the right communication passage 362 each have a third cylindrical portion 363 projecting from the left and right side surfaces of the rear support portion 320 at the left and right outer ends. The side ventilation path 430 and the third base ventilation path 360 are connected by inserting the third tubular portion 363 into the side connection opening 432 of the armrest SA when the armrest SA is attached to the seat body S0.

As shown in FIGS. 3 and 4, the blower 10 is provided to blow air toward the seated occupant from the ventilation openings 131, 231, 431. As shown in FIG. Specifically, the first blower 11 and the second blower 12 are provided so as to send air from the second base air passage 350 toward the first base air passage 340 by rotation of the impeller. Further, the third blower 13 is provided so as to send air from the second base section ventilation path 350 toward the third base section ventilation path 360 by rotation of the impeller.

As shown in FIG. 1, the operation part 20 is a part for a seated person to operate the blower 10. As shown in FIG. The operating portion 20 is provided on the armrest SA of the base portion SB. Specifically, the operation unit 20 is provided near the front end of the upper surface of the left armrest SA.

As shown in FIG. 7, the operation unit 20 has a power switch 21, a selector switch 22, and an adjustment dial 23, for example.
The blower 10 can be driven by turning on the power switch 21 .

The changeover switch 22 is a switch for switching between driving and stopping the blower 10 in a state where the power switch 21 is turned on. include. In the sofa S, when the first changeover switch 22A is turned on, the first blower 11 is driven to blow air from the seat cushion 100 toward the seated person. When the first changeover switch 22A is turned off, the first blower 11 stops and the air is no longer blown out from the seat cushion 100. - 特許庁

In addition, when the second switch 22B of the sofa S is turned on, the second blower 12 is driven to blow air from the backrest cushion 200 toward the seated person. When the second changeover switch 22B is turned off, the second blower 12 is stopped and air is no longer blown from the front surface of the backrest cushion 200. - 特許庁In addition, when the third changeover switch 22C is turned on, the sofa S drives the third blower 13 to blow air from the armrest SA toward the seated person. When the third changeover switch 22C is turned off, the third blower 13 is stopped and air is no longer blown out from the armrest SA.

The adjustment dial 23 is a dial for adjusting the flow rate of blown air by changing the rotational speed of the impeller of the blower 10, for example. In the sofa S, the flow rate of blown air can be increased by turning the adjustment dial 23 clockwise, and the flow rate of blown air can be decreased by turning the adjustment dial 23 counterclockwise.

As shown in FIGS. 8(a) and (b). The sofa S further comprises electrical wires 30 for supplying power to the blowers 11-13. The electric wire 30 is connected to the first blower 11 , the second blower 12 and the third blower 13 via the operation portion 20 . For example, as shown in FIG. 8(a), the electric wire 30 may be pulled out rearward from the rear surface of the armrest SA, and as shown in FIG. may be pulled out rearward from the rear surface of the .

In this embodiment, since the armrest SA is detachable from the seat body S0, a connector 31 is used to connect the electric wire 30 at the point where the left armrest SA and the seat body S0 are separated.

According to the first embodiment described above, air can be blown out from the seat cushion 100 and the backrest cushion 200, so that the comfort of the seated person can be enhanced. In addition, since the operation unit 20 is provided on the armrest SA, it is possible to make the operation easier than when the operation unit is provided on the backrest S2, for example.

In addition, since the ventilation openings 131 and 231 are provided at positions left or right from the left and right centers C1 and C2 of the seat cushion 100 and the backrest cushion 200 at a predetermined interval or more, the ventilation openings 131 and 231 can be They can be provided at positions left and right away from the left and right centers C1 and C2 of the cushion 100 and the backrest cushion 200.例文帳に追加As a result, it is possible to prevent the ventilation openings 131 and 231 from being blocked by the seated person. As a result, the air can be well blown out from the seat cushion 100 and the backrest cushion 200, so that the comfort of the seated person can be enhanced.

In addition, since the air can be blown out from the armrest SA as well, the comfort of the seated person can be further enhanced.

In addition, since the second base ventilation path 350 opens toward the rear at the lower part of the base part SB, the base opening 351 of the second base ventilation path 350, which opens to the outside, is arranged at an inconspicuous position on the sofa S. be able to.

Moreover, since the operation part 20 is provided on the upper surface of the armrest SA, it is possible to make the operation easier.

In the first embodiment, as shown in FIG. 6, the first base air passage 340 has cylindrical portions 341A and 342A at its ends, and the cylindrical portions 341A and 342A are connected to the cushion air passage 130 as shown in FIG. , 230 to connect the cushion air passages 130, 230 and the first base air passage 340, but the present invention is not limited to this. For example, contrary to the configuration of the first embodiment, the cushion air passage has a tubular portion at the end, and the tubular portion of the cushion air passage enters the opening of the first base portion air passage, thereby A configuration in which the ventilation path and the first base portion ventilation path are connected may be employed.

Moreover, the connection between the cushion air passage and the first base air passage is not limited to the configuration in which one cylindrical portion enters the other opening. It may be a configuration performed by entering the cylindrical portion of the.

Next, a second embodiment will be described. In the following, differences from the previously described embodiment will be described in detail, and description of the same points as the previously described embodiment will be omitted by, for example, assigning the same reference numerals to the same components. .
The second embodiment differs from the first embodiment in the connection structure between the cushion air passages 130 and 230 and the first base air passage 340 .

As shown in FIG. 9, the seat cushion ventilation path 130 has a plurality of seat ventilation openings 131 and a seat connection opening 132 as a second opening. The seat connection opening 132 opens toward a first connection opening 343A of the first base air passage 340, which will be described later, on the rear surface of the first cushion member 110. As shown in FIG.

The backrest cushion ventilation path 230 has a plurality of backrest ventilation openings 231 and a backrest connecting opening 232 as a second opening. The backrest connection opening 232 opens toward a second connection opening 344A of the first base air passage 340, which will be described later, on the rear surface of the second cushion material 210. As shown in FIG.

The first base air passage 340 includes a seat communication passage 343 that communicates a first blower housing chamber 331 in which the first blower 11 is arranged and the seat cushion air passage 130, and a second blower 12 in which the second blower 12 is arranged. It has a backrest communication passage 344 that connects the two-blower accommodation chamber 332 and the backrest cushion ventilation passage 230 .

The seat communication passage 343 has a first connection opening 343A as a first opening at the end opposite to the end connected to the first blower accommodation chamber 331 . The first connection opening 343</b>A opens toward the seat connection opening 132 of the seat cushion air passage 130 . The seat cushion ventilation path 130 and the first base ventilation path 340 are communicated and connected by the seat connection opening 132 and the first connection opening 343A facing each other when the seat cushion 100 is attached to the base SB. .

The backrest communication passage 344 has a second connection opening 344A as a first opening at the end opposite to the end connected to the second blower accommodation chamber 332 . The second connection opening 344A opens toward the backrest connection opening 232 of the backrest cushion air passage 230 . The backrest cushion air passage 230 and the first base air passage 340 are communicated and connected by making the backrest connection opening 232 and the second connection opening 344A face each other when the backrest cushion 200 is attached to the base portion SB.

Next, a third embodiment will be described.
As shown in FIG. 10, the sofa S of the third embodiment further includes a changing mechanism MC. The change mechanism MC can change the position of blowing air toward the seated person.

The seat cushion 100 has a seat duct 140 and a first connecting tube 150 that form a seat cushion air passage 130 . The seat duct 140 has a plurality of seat ventilation openings 131 that open toward the seated person, and is provided so as to slide forward, backward, leftward, and rightward by a changing mechanism MC. The first connection pipe 150 is a member that connects the seat duct 140 and the seat communication passage 343 of the first base ventilation passage 340, and has an extendable portion 151 that can be extended back and forth.

The back cushion 200 has a back duct 240 and a second connecting tube 250 that form a back cushion air passage 230 . The backrest duct 240 has a plurality of backrest ventilation openings 231 that open toward the seated person, and is provided so as to slide vertically and horizontally by the changing mechanism MC. The second connecting pipe 250 is a member that connects the backrest duct 240 and the backrest communication passage 344 of the first base ventilation passage 340, and has an extendable portion 251 that can extend and retract vertically.

The change mechanism MC includes a first slide mechanism MS1 that slides the seat duct 140 back and forth, a second slide mechanism MS2 that slides the seat duct 140 left and right, and a third slide mechanism MS2 that slides the backrest duct 240 up and down. It includes a slide mechanism MS3 and a fourth slide mechanism MS4 for sliding the backrest duct 240 left and right.

The sofa S has an operation unit 20 as shown in FIG. The operation unit 20 is provided on the upper surface of the armrest SA, as in the first embodiment. The operation unit 20 of the third embodiment can operate the change mechanism MC. The operation unit 20 has an operation switch 24 in addition to a power switch 21 , a changeover switch 22 and an adjustment dial 23 .

The operation switch 24 is a switch for operating the changing mechanism MC, and consists of four switches 24A to 24D arranged in a cross shape in the front, rear, left, and right directions, and a substantially cross-shaped switch cover 24E. The switch cover 24E is provided so that the portion sandwiching the center swings up and down with the center as a fulcrum.

For example, after turning on the first changeover switch 22A, the sofa S is pushed by the switch 24A on the front side through the switch cover 24E, as shown in FIG. The duct 140 can be slid forward. As a result, the position at which air is blown out from the seat cushion 100 can be changed forward. Further, by pressing the switch 24B on the rear side through the switch cover 24E, the seat duct 140 can be slid rearward by the first slide mechanism MS1 as shown in FIG. 12(b). As a result, the position at which air is blown out from the seat cushion 100 can be changed to the rear.

Further, by pressing the left switch 24C through the switch cover 24E, the seat duct 140 can be slid to the left by the second slide mechanism MS2. As a result, the position at which air is blown out from the seat cushion 100 can be changed to the left. Also, by pressing the right switch 24D through the switch cover 24E, the seat duct 140 can be slid to the right by the second slide mechanism MS2. As a result, the position at which air is blown out from the seat cushion 100 can be changed to the right.

After turning on the second changeover switch 22B, the sofa S pushes the switch 24A through the switch cover 24E, so that the backrest duct 240 is moved by the third slide mechanism MS3 as shown in FIG. You can slide it down. As a result, the position at which air is blown out from the backrest cushion 200 can be changed downward. By pressing the switch 24B through the switch cover 24E, the backrest duct 240 can be slid upward by the third slide mechanism MS3 as shown in FIG. 12(b). As a result, the position at which air is blown out from the backrest cushion 200 can be changed upward.

Further, by pressing the switch 24C through the switch cover 24E, the backrest duct 240 can be slid to the left by the fourth slide mechanism MS4. Thereby, the position where the air is blown out from the backrest cushion 200 can be changed to the left. Further, by pressing the switch 24D through the switch cover 24E, the backrest duct 240 can be slid to the right by the fourth slide mechanism MS4. As a result, the position at which air is blown out from the backrest cushion 200 can be changed to the right.

According to the third embodiment described above, the change mechanism MC can change the position at which the air is blown, so that the comfort of the seated person can be further enhanced.

Further, by operating the operation unit 20, the seated person can change the position at which the air is blown according to the preference of the seated person, so that the comfort of the seated person can be further enhanced.

In the third embodiment, the changing mechanism MC is configured to be able to change the position at which air is blown from the seat cushion 100 to the front, rear, left, and right, but is not limited to this. For example, the changing mechanism may be configured to change only the position from which air is blown from the seat cushion back and forth, or may be configured to be capable of changing only to the left and right the position from which air is blown from the seat cushion. .

Similarly, in the third embodiment, the changing mechanism MC has a configuration capable of changing the position of blowing air from the backrest cushion 200 vertically and horizontally, but the present invention is not limited to this. For example, the changing mechanism may be configured so that the position of blowing air from the backrest cushion can be changed only up and down, or the position of blowing air from the backrest cushion can be changed only left and right.

The changing mechanism may be configured to change only the position at which air is blown out from the seat cushion, or may be configured to be capable of changing only the position at which air is blown out from the backrest cushion.

Next, a fourth embodiment will be described.
The fourth embodiment differs from the third embodiment in the change mechanism MC. Specifically, the changing mechanism MC of the fourth embodiment can change the direction of blowing air toward the seated person instead of changing the position of blowing air toward the seated person.

As shown in FIG. 13 , the seat cushion 100 has a seat duct 160 and a first connecting tube 170 that form a seat cushion air passage 130 . The seat duct 160 has a plurality of seat ventilation openings 131, and is provided so that the front and rear ends thereof can be vertically swung by the changing mechanism MC. The first connection pipe 170 is a member that connects the seat portion duct 160 and the seat portion communication passage 343, and has an extendable portion 171 that is vertically extendable.

The back cushion 200 has a back duct 260 and a second connecting tube 270 that form a back cushion air passage 230 . The backrest duct 260 has a plurality of backrest ventilation openings 231, and is provided so that its upper and lower ends are swung back and forth by the changing mechanism MC. The second connection pipe 270 is a member that connects the backrest duct 260 and the backrest communication passage 344, and has an extendable portion 271 that can be extended back and forth.

The changing mechanism MC includes a seat rocking mechanism MD1 that rocks the seat duct 160 and a backrest rocking mechanism MD2 that rocks the backrest duct 260 .

As shown in FIG. 14(a), the sofa S can swing the seat duct 160 from upward to diagonally forward by the seat swing mechanism MD1. As a result, the direction in which air is blown out from the seat cushion 100 can be changed from upward to obliquely forward. In addition, the sofa S can swing the backrest duct 260 from obliquely upward to forward by the backrest swinging mechanism MD2. Thereby, the direction in which air is blown out from the backrest cushion 200 can be changed from obliquely upward to forward.

Further, as shown in FIG. 14(b), the sofa S can swing the seat duct 160 from upward to obliquely backward by the seat swing mechanism MD1. As a result, the direction in which air is blown out from the seat cushion 100 can be changed from upward to obliquely backward. In addition, the sofa S can swing the backrest duct 260 further upward by the backrest swinging mechanism MD2. Thereby, the direction in which the air is blown out from the backrest cushion 200 can be further changed to obliquely upward.

According to the fourth embodiment described above, the direction in which the air is blown can be changed by the changing mechanism MC, so that the comfort of the seated person can be further enhanced.

Further, it is desirable that the changing mechanism MC of the fourth embodiment be operable by the operating section, as in the third embodiment. According to this, the seated person can operate the operation unit to change the blowing direction of the air according to the preference of the seated person, so that the comfort of the seated person can be further enhanced.

The change mechanism MC of the third embodiment is configured to change only the air blowing position, and the change mechanism MC of the fourth embodiment is configured to change only the air blowing direction. It is not limited to this. For example, the change mechanism may be configured to change both the position of blowing air and the direction of blowing air.

Although the embodiments have been described above, the present invention is not limited to the above-described embodiments, and can be implemented with appropriate modifications as exemplified below.

In the above-described embodiment, the ventilation openings 131 and 231 are provided only in the left and right sides of the left and right center portions of the seat cushion 100 and the backrest cushion 200, but the present invention is not limited to this. For example, the ventilation openings may be provided not only in the left and right sides of the left and right central portion, but also in the left and right central portion.

Further, in the above-described embodiment, the electric wire 30 for supplying electric power to the blower 10 is drawn rearward from the rear surface of the base portion SB including the armrest SA, but the present invention is not limited to this. For example, the electric wire may be pulled out to the left from the left side of the base or may be pulled out to the right from the right side of the base.

Further, in the above-described embodiment, the second base air passage 350 opens rearward at the lower portion of the base SB, but the present invention is not limited to this. For example, the second base air passage may open rearward at the top of the base. The second base air passage may open leftward on the left side of the base, or may open rightward on the right side of the base. In addition, for example, when the sofa has legs and the like and there is a gap between the lower support and the installation surface of the sofa, the second base air passage is directed downward on the lower surface of the lower support. It may be open.

Also, in the above-described embodiment, the blower 10 is arranged inside the rear support portion 320 of the base portion SB, but the present invention is not limited to this. For example, the blower 10 may be placed inside the lower support 310 . Further, the blower 10 may be arranged inside the armrest SA (side portion). Further, for example, the first blower 11 is arranged inside the lower support portion 310, the second blower 12 is arranged inside the rear support portion 320, and the third blower 13 is arranged inside each armrest SA. configuration may be used.

Moreover, the number of blowers is arbitrary. For example, the sofa may be configured with a common blower to blow air from the seat and back cushions. The sofa may also be configured with a common blower to blow air from the seat cushions, back cushions and armrests. Also, for example, a plurality of blowers may be provided for blowing air from the seat cushion. The same applies to blowers for blowing air from the back cushions and armrests.

Further, in the above-described embodiment, the armrest SA (side portion) is configured to have the side air passage 430, but the present invention is not limited to this. For example, the sofa S does not include the side ventilation path 430, the third base ventilation path 360, the third blower 13, etc. of the above-described embodiment, and does not blow air from the armrest SA (side). good.

Further, in the above-described embodiment, the armrest SA (side portion) is detachable from the seat body S0, but is not limited to this, and may be, for example, non-removable.

In the above-described embodiment, both the seat cushion 100 and the backrest cushion 200 have the cushion ventilation paths 130, 230, but the present invention is not limited to this. For example, only one of the seat cushion and the backrest cushion may have a cushion ventilation path.

Also, in the above-described embodiment, the armrest SA (side portion) is positioned only on one of the left and right sides of one seat cushion 100, but the present invention is not limited to this. For example, armrests (sides) may be located on both the left and right sides of one seat cushion 100 .

Further, in the above embodiment, the operation unit 20 is provided on the left armrest SA, but the present invention is not limited to this. For example, the operation unit 20 may be provided on the right armrest SA. Also, the operation unit 20 may be provided on both the left and right armrests SA. By providing the operation parts 20 on both the left and right armrests SA, the blower 10 can be operated regardless of whether the seated person sits on the right or left side of the sofa S for two people.

Further, in the above-described embodiment, the operation unit 20 is provided on the upper surface of the armrest SA, but the configuration is not limited to this. For example, the operation section may be configured to be provided on the left and right outer side or the left and right inner side of the armrest.

Also, in the above-described embodiment, the armrests SA (side portions) are positioned on both the left and right sides of the seat portion S1, but the present invention is not limited to this. For example, the armrests (sides) may be located on only one of the left and right sides of the seat.

Also, in the above-described embodiment, the side portion is the armrest SA, but the present invention is not limited to this. For example, the side portion may be a stand, a table, or the like, which is wider in the lateral direction than the armrest.

Moreover, in the above embodiment, the base portion SB has the armrest SA (side portion), but the present invention is not limited to this. For example, as shown in FIG. 15, the sofa S may have a configuration in which the base portion SB does not have side portions.

Further, in the above-described embodiment, the operation portion 20 is provided on the armrest SA (side portion) of the base portion SB, but the present invention is not limited to this. For example, as shown in FIG. 15, if the sofa S does not have side portions, the operating portion 20 may be provided on the left side surface of the base portion SB. Specifically, the operation portion 20 is provided on the left side surface 311 of the lower support portion 310 . Although illustration is omitted, the operation portion 20 may be provided on the right side surface of the base portion SB (lower support portion 310).

Further, in the above embodiment, the blower 10 is provided so as to blow air from the ventilation openings 131, 231, 431, but the present invention is not limited to this. For example, a blower may be provided to draw air through the vent openings. For example, in the sofa S of the first embodiment, the first blower 11 and the second blower 12 are configured to blow air from the first base air passage 340 to the second base air passage 350 by the rotation of the impeller. , and the third blower 13 is provided so as to send air from the third base air passage 360 toward the second base air passage 350 by rotation of the impeller. .

With such a configuration, air can be sucked from the seat cushion 100 and the backrest cushion 200 . In addition, since the ventilation openings 131 and 231 are provided only in the left and right sides of the left and right center portions of the seat cushion 100 and the backrest cushion 200, the air can be well sucked from the seat cushion 100 and the backrest cushion 200. It can be carried out. Air can also be sucked from the armrest SA. And thereby, a comfortable feeling of a seated person can be improved.

Also, the blower may be provided so as to be switchable between blowing air and sucking air, for example, by switching the rotation direction of the impeller. Further, the sofa may have a configuration in which air is blown out from one of the seat cushion and the seat back, and air is sucked in from the other.

In addition, the sofa S may be configured to blow air from the headrest SH or to suck air.

Moreover, as shown in FIG. 16, the sofa S may further include a heater 50 .
The heater 50 is a sheet heater, a so-called planar heater. In the modification shown in FIG. 16, the heater 50 includes a seat heater 51A, a backrest heater 52A, a headrest heater 54A, and a leg heater 55. As shown in FIG.

The seat heater 51A is a heater that heats the surface of the seat S1 facing the seated person, specifically, the upper surface of the seat S1. The seat heater 51A is mainly arranged at a position facing the seated person's buttocks and thighs, and heats the seated person's buttocks and thighs from below. The seat heater 51A is provided on each of the left and right seat cushions 100 . The seat heater 51A is arranged between the upper surface of the first cushion material 110 and the first skin 120. As shown in FIG. Also, the seat heater 51A is arranged in the center of the seat cushion 100 in the left-right direction. The seat heater 51A is arranged between a plurality of seat vent openings 131 provided in the left portion of the seat cushion 100 and a plurality of seat vent openings 131 provided in the right portion of the seat cushion 100. ing.

The backrest heater 52A is a heater that heats the surface of the backrest S2 facing the seated person, specifically, the front surface of the backrest S2. The backrest heater 52A is mainly arranged at a position facing the waist and back of the seated person, and heats the waist and back of the seated person from behind. The backrest heaters 52A are provided on the left and right backrest cushions 200, respectively. The backrest heater 52A is arranged between the front surface of the second cushion material 210 and the second skin 220. As shown in FIG. The backrest heater 52A is arranged between a plurality of backrest ventilation openings 231 provided in the left portion of the backrest cushion 200 and a plurality of backrest ventilation openings 231 provided in the right portion of the backrest cushion 200.例文帳に追加

The headrest heater 54A is a heater that heats the surface of the headrest SH facing the seated person, specifically, the front surface of the headrest SH. The headrest heater 54A is arranged at a position facing at least one of the head and neck of the seated person, and heats at least one of the head and neck of the seated person from behind. The headrest heater 54A is provided in each of the left and right headrests SH. The headrest heater 54A is arranged between the pad material of the headrest SH and the skin of the headrest SH. In the modified example shown in FIG. 16, the headrest heater 54A includes a plurality of backrest ventilation openings 231 provided in the left portion of the backrest cushion 200 and a plurality of backrest ventilation openings provided in the right portion of the backrest cushion 200 in the left-right direction. 231.

The leg heater 55 is a heater that heats the surface of the sofa S that faces the legs of the seated person. The leg heaters 55 mainly heat the legs of the seated person below the knees. In the modification shown in FIG. 16, the leg heater 55 is provided to heat the front surface of the seat S1. Specifically, the leg heater 55 is provided to heat the front surface of the seat cushion 100 .

When the sofa S includes the heater 50 , the operation unit 20 can be configured to be able to operate not only the blower 10 but also the heater 50 . Also, the headrest heater 54A may be provided so as to heat substantially the entire front surface of the headrest SH. Moreover, the leg heater may be provided so as to heat not only the front surface of the seat portion S1 but also the surface of the lower support portion 310 facing the seated person, specifically, the front surface of the lower support portion 310. . Further, the leg heater may be provided so as to heat the surface of a storable ottoman included in the sofa S facing the seated person.

Further, in the above-described embodiment, the headrest SH is detachable from the backrest S2 (seat body S0), but is not limited to this, and may be, for example, non-detachable. Further, in the above-described embodiment, the sofa S is configured to include the headrest SH, but is not limited to this, and may be configured to not include the headrest, for example.

Further, in the above-described embodiment, the sofa S for two people was exemplified as the seat, but the seat is not limited to this. For example, the seat may be a one-seat sofa or a three-seat sofa. Also, the seat is not limited to a sofa, and may be an armchair, for example. Also, the seat is not limited to a seat for home use, and may be a seat used in an amusement facility or a relaxation facility, for example. Further, the seat may be, for example, a vehicle seat or a vehicle seat mounted in an automobile, a railroad vehicle, a ship, an aircraft, or the like.

It should be noted that the configuration having a blower capable of blowing out or sucking air as described above and the configuration in which the operation section is provided on the side surface of the base portion or the side portion of the base portion are applicable to at least the seat cushion and the backrest cushion. It can also be applied to a seat whose one side cannot be attached to and detached from the base portion.

Moreover, each element described in the above-described embodiment and modifications may be implemented in any combination.

10 Blower 20 Operation Part 30 Electric Wire 100 Seat Cushion 130 Seat Cushion Ventilation Path 131 Seat Ventilation Opening 200 Back Cushion 230 Back Cushion Ventilation Path 231 Back Ventilation Opening 310 Lower Support Part 320 Rear Support Part 340 First Base Ventilation Path 341A First tubular portion 342A Second tubular portion 350 Second base air passage 430 Side air passage S Sofa SA Armrest SB Base portion

Claims (13)

a seat cushion;
back cushion and
a base portion having a lower support for supporting the seat cushion from below and a rear support for supporting the back cushion from behind;
blower and
an operation unit for the seated person to operate the blower,
The seat cushion is detachable from the lower support,
The backrest cushion is detachable from the rear support,
At least one of the seat cushion and the backrest cushion has a cushion air passage through which the airflow generated by the blower passes, and has a ventilation opening that opens toward the seated person,
The operation part is of the base part,
left or right side,
or,
side portions located on at least one of the left and right of the seat cushion and projecting above the seat cushion;
A seat characterized by being provided in. 2. The seat according to claim 1, wherein the ventilation opening is provided at a position spaced apart by a predetermined distance or more to the left or right from the lateral center of the seat cushion or the backrest cushion. the base portion has the side portion;
3. The side part according to claim 1, wherein the side part has a side part ventilation path through which the air flow formed by the blower passes, and which has a side part ventilation path that opens toward the seated person. sheet. 4. The seat according to any one of claims 1 to 3, wherein the blower is arranged inside the base portion. The base portion has a first base portion air passage for communicating the blower and the cushion air passage,
one of the first base air passage and the cushion air passage has a tubular portion at an end,
2. The cushion air passage and the first base air passage are connected by the cylindrical portion entering the other of the first base air passage and the cushion air passage. 5. A sheet according to any one of claims 4. The base portion has a first base portion air passage for communicating the blower and the cushion air passage,
The first base air passage has a first opening that opens toward the cushion air passage,
The cushion airway has a second opening that opens toward the first base airway,
The seat according to any one of claims 1 to 4, wherein the cushion air passage and the first base air passage communicate with each other when the first opening and the second opening face each other. . The base portion is characterized by having a second base portion ventilation passage that communicates the outside of the base portion with the blower, and that has a second base portion ventilation passage that opens rearward at a lower portion of the base portion. The sheet according to any one of claims 4 to 6, wherein a wire for powering the blower;
the base portion has the side portion;
8. The seat according to any one of claims 4 to 7, wherein the electric wire is drawn rearward from the side portion. a wire for powering the blower;
8. The seat according to any one of claims 4 to 7, wherein the electric wire is pulled out rearward from a left-right central portion of the base portion. The blower is provided to blow air from the ventilation opening toward the seated person,
10. The seat according to any one of claims 1 to 9, further comprising a change mechanism capable of changing at least one of a position in which air is blown toward the seated person and a direction in which air is blown toward the seated person. or the sheet according to item 1. 11. The seat according to claim 10, wherein the operating section can operate the changing mechanism. 12. The seat according to claim 11, wherein the operation unit has an operation switch for operating the change mechanism, and has an operation switch composed of four switches arranged in a cross shape. the base portion has the side portion;
the side portion is an armrest;
13. The seat according to any one of claims 1 to 12, wherein the operation portion is provided on an upper surface of the armrest.

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