JP5885336B2 - Air conditioning chair - Google Patents

Description

  The present invention relates to an air-conditioning chair that is used to supply air-conditioned air to the vicinity of a seated person to increase cooling and heating efficiency, and more particularly to an air-conditioning chair that prevents air-conditioned air from directly hitting a seated person of the chair. .

  As an air-conditioning chair used for supplying air-conditioned air to the vicinity of a seated person to increase cooling and heating efficiency, an air-conditioning connection chair used in a theater, a hall or the like previously proposed by the applicant of the present application is known (patent) Reference 1). In this air conditioning connection chair, the conditioned air supplied from the legs of the connection chair into the back is blown obliquely upward and rearward from the slit provided at the upper end of the back so that the conditioned air is supplied to the vicinity of the seated person. It is composed.

Japanese Patent Application Laid-Open No. 09-252877

  By the way, when the inventor of the present application has advanced research on such a conventional air-conditioning chair, in the case of a theater chair, the height and thickness of the back portion are sufficient in this conventional air-conditioning chair. Air conditioning air outlets can be provided at relatively distant locations, whereas in the case of lecture rooms and classroom chairs, the height and thickness of the back are suppressed, so the head and upper body of the seated person It has been found that when the position approaches the air-conditioned air outlet, a temperature difference is likely to occur in the air around the seated person, and therefore it is difficult to sufficiently enhance the comfort of the seated person. Also, with conventional air-conditioning chairs, when used side-by-side in school lecture rooms, classrooms, auditoriums, etc., the seating person of the rear chair can write from a slit provided at the upper end of the back of the front chair, etc. If the foreign material is dropped, it may be intruded into the back and cannot be removed.

An object of the present invention is to advantageously solve the above-described problem, and an air-conditioning chair according to the present invention includes a leg portion having an air-conditioned air supply path, a back portion and a seat portion supported by the leg portion, An air conditioning chair that blows conditioned air supplied from the conditioned air supply path of the leg portion obliquely upward and backward from the back portion, the back portion communicating with the conditioned air supply path of the leg portion on the back side thereof An conditioned air passage having a lower end portion extending in the vertical direction, an induced air passage having a lower end portion opened to the outside of the leg portion and extending in the vertical direction along the conditioned air passage, and Connected to the upper end portion of the induction air passage and extending in alignment with the induction air passage, and the upper end portion of the conditioned air passage merges upward, and opens upward and obliquely rearward from the merge passage. and the air outlet, the equipped, the attractant The lower end of the air passage, with straddle while closing a portion of the upper end portion of the leg portion, in alignment with the lower of the air outlet in the extending direction of the air outlet, and open toward the oblique right downward It is characterized by this.

  In such an air-conditioning chair, conditioned air is supplied from the conditioned air supply path of the leg portion communicating with the lower end portion of the conditioned air passage in the conditioned air passage extending in the vertical direction on the back side of the back portion. Air flows into the combined flow path upward from the upper end of the conditioned air passage, passes through the combined flow path, and blows upward and obliquely rearward on the back side of the back portion from the blowout opening that opens upward and obliquely rearward from the combined flow path. . At that time, the conditioned air flowing into the combined flow path upward from the upper end of the conditioned air passage attracts the air in the induced air passage from the upper end of the induced air passage extending vertically along the conditioned air passage. Then, when the pressure in the induced air passage decreases as a result of blowing out obliquely upward and rearward from the outlet on the back side of the back portion, the pressure from the lower end portion of the induced air passage that opens to the outside of the leg portion enters the induced air passage. Air around the chair is introduced.

  Therefore, according to the air-conditioning chair of the present invention, when applied to a lecture room or classroom chair in which the height and thickness of the back portion are suppressed and the position of the seated person's head and upper body approaches the air-conditioned air outlet However, the air around the chair is attracted and blown obliquely upward and backward on the back side of the back together with the conditioned air, so the air blown out is increased by increasing the amount of air blown out, and the air around the seated person Therefore, the comfort of the seated person can be sufficiently improved.

Further, in the air conditioning chair of the present invention, the combined flow path in which the air outlet opens is connected to the upper end portion of the induced air passage extending in the vertical direction along the conditioned air passage and aligned with the induced air passage. The air passage has a lower end that opens to the outside of the leg, and the lower end of the air passage spans a portion of the upper end of the leg, Aligned below the air outlet in the extending direction and opened obliquely to the left and right downwards , if foreign matter falls from the air outlet into the combined flow path, the foreign object is aligned in the induced air passage aligned with the combined flow path. It passes through and is discharged to the outside through the opening at the lower end of the induced air passage that is aligned below the outlet .

  Therefore, according to the air-conditioning chair of the present invention, when used side by side in a school lecture room, classroom, auditorium, etc., the air outlet provided on the back side of the back of the front chair by the seated person of the rear chair Even if a foreign object such as a writing instrument is dropped, it can be discharged outside without entering the back.

  In the air-conditioning chair of the present invention, the air-conditioned air passage is positioned at the center in the left-right direction of the back portion so as to overlap with the attraction air passage in the front-rear direction, and the air outlet extends in the left-right direction of the back portion. In addition, it is preferable that the central portion is closed and the opening is directed obliquely left and right.

  In this way, the conditioned air having a high flow rate passing through the low-circulation resistance straight tubular air-conditioning air passage located in the center in the left-right direction of the back portion is directly connected to the low-flow resistance direct current located in the center portion in the left-right direction of the back portion. Since the air in the tubular induction air passage is efficiently attracted, a large amount of the induction air can be blown out together with the air-conditioned air. The air blows out to the surroundings without directly hitting the back of the head of the seated person of the chair. There is no loss of comfort.

In the air-conditioning chairs of the present invention, the lower end portion of the attraction air passage as described above, Gutotomoni straddle while closing a portion of the upper end portion of the leg portion, the air outlet in the extending direction of the air outlet They are aligned downward and open obliquely left and right downward .

  In this way, a wide range of air on the left and right sides of the legs can be attracted and blown out together with the conditioned air, and when used side by side in a school lecture hall or auditorium, the back chair Even if a seated person drops a foreign object such as a writing instrument from the slit provided at the upper end of the back of the front chair, it falls to the left and right outside of the leg, not under the seat. The collected foreign matter can be easily recovered.

(A)-(d) is a top view, a front view, a side view, and a rear view, respectively, showing an embodiment of the air-conditioning chair of the present invention. (A), (b) is the side view and back view which show the back part of the air-conditioning chair of the said Example in a vertical state, (c) is sectional drawing in alignment with the AA in (a) of the back part, And (d) is sectional drawing which follows the BB line | wire in (b) of the back part. (A) is a perspective view showing the back part of the air conditioning chair of the above embodiment, (b) is an exploded perspective view showing the back part with the cover removed, and (c) shows the back part with the cover plate and the middle It is a disassembled perspective view which removes and shows a partition plate and one side plate. (A) is a perspective view which shows the entrance and exit of the air in the back part of the air-conditioning chair of the said Example, (b) is a disassembled perspective view which removes a cover board and shows the path | route of the conditioned air in the back part, (c) is The exploded perspective view showing the route of the induced air in the back portion with the cover plate removed, (d) is a cross-sectional view showing the route of the induced air in the cross section along the line AA in FIG. 2 (a), And (e) is sectional drawing which shows the mixed state of conditioned air and attraction air in the cross section which follows the BB line in FIG.2 (b). (A) is a perspective view showing the entry of foreign matter in the back of the air conditioning chair of the above embodiment, (b) is an exploded perspective view showing the falling path of the foreign matter in the back, with the cover plate removed, and (c). , An exploded perspective view showing the fall path of the foreign matter at the back, with the cover plate, the partition plate and one side plate removed, (d) is a cross-section along the line AA in FIG. Sectional drawing which shows the fall path | route of a foreign material, and (e) are sectional drawings which show the fall path | route of a foreign material in the cross section along the BB line in FIG.2 (b).

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Here, FIGS. 1A to 1D are a plan view, a front view, a side view and a rear view, respectively, showing an embodiment of the air-conditioning chair of the present invention, and FIGS. The side view and back view which show the back part of the air-conditioning chair of an Example in a vertical state, FIG.2 (c) is sectional drawing in alignment with the AA in FIG.2 (a), and FIG.2 (d). FIG. 3B is a cross-sectional view taken along line BB in FIG. 2B, FIG. 3A is a perspective view showing the back of the air-conditioning chair of the above embodiment, and FIG. FIG. 3C is an exploded perspective view showing the back portion with the cover plate, the partition plate, and one side plate removed.

  As shown in the figure, the air-conditioning chair of this embodiment includes a square pipe-shaped leg portion 2 having an internal space as an air-conditioned air supply path 1, and a back portion 3 and a seat portion 4 fixedly supported by the leg portion 2, respectively. The conditioned air supplied from the conditioned air supply path 1 of the leg portion 2 is blown upward and obliquely rearward from the back portion 3.

  In such an air-conditioning chair, the lower end of the leg 2 is fixed to a floor surface (not shown), and the conditioned air supply path 1 in the lower end of the leg 2 is illustrated via an conditioned air chamber (not shown) provided under the floor. Not connected to the air conditioner.

  The back portion 3 has one side end fixed to the back surface 3a on the back surface 3a side, and extends vertically from the lower end portion to the middle portion with a constant width except for an opening described later, while from the middle portion. The left and right side plates 5 are spaced apart from each other in the left-right direction and narrow in the front-rear direction as they go upward toward the upper end.

  The back portion 3 is further close to the back surface 3a side, and both end portions thereof are in close contact with the left and right side walls 5, and the width of the constant width portion of the left and right side plates 5 from the back surface 3a is extended from the lower end portion to the middle portion of the side plate 5. A partition plate 6 that is spaced apart by a distance of 1/3 and extends in parallel with the back surface 3a, and the other side end portions of the left and right side plates 5 are in close contact with both side ends, and from the lower end portion of the side plate 5 to the middle portion Is extended from the back surface 3a by the same distance as the width of the constant width portion of the left and right side plates 5 and extends in parallel with the back surface 3a, while extending from the middle portion to the upper end portion of the side plate 5 from the back surface 3a to the left and right side plates 5 is provided with a cover plate 7 that approaches the back surface 3a as it goes upward with a distance equal to the width of 5.

  Here, in the lower part of the left and right side plates 5, an obliquely downward opening 5c having a rectangular cutout portion 5a and a cover plate 5b extending obliquely downward from directly above the cutout portion 5a is formed. Yes. On the back surface 3a of the back portion 3, an upper distribution member 8 having a substantially inverted triangular cross-sectional shape is provided between the upper ends of the left and right side plates 5 so that the front end surface is in contact with the cover plate 7, while the left and right side plates are A lower distribution member 9 having a substantially triangular cross-sectional shape is provided between the upper end portions of 5 so that the front end surface is in contact with the partition plate 6.

  And the upper end part of the leg part 2 is notched in the front part which interferes with the lower distribution member 9 and the partition plate 6, and the rectangular parallelepiped shape which the left and right side plates 5, the partition plate 6, and the cover plate 7 define. The side plate 5, the partition plate 6, and the cover plate 7 are closely inserted into the space from the lower end side, and are fixed to the back portion 3 through at least one of the side plate 5 and the cover plate 7.

  The back portion 3 configured in this way has, on its rear surface 3a side, a conditioned air passage 10 that has a lower end portion 10a that communicates with the conditioned air supply passage 1 of the leg portion 2 and extends in the vertical direction. And a partition plate 6 and a cover plate 7, and has a lower end portion 11 a having an opening portion 5 c that opens to the outside of the leg portion 2, and extends vertically along the conditioned air passage 10. The attraction air passage 11 is defined by the back surface 3 a, the left and right side plates 5, the partition plate 6, and the lower distribution member 9, and the upper end portion of the partition plate 6 is positioned below the upper end portion of the cover plate 7. As a result, a combined flow path 12 is defined which is connected to the upper end portion 11b of the induced air passage 11 and extends in alignment with the induced air passage 11 and the upper end portion 10b of the conditioned air passage 10 joins upward. And from the joint channel 12 upward and obliquely rearward Outlet 13 of the mouth has been made picture out the back 3a and the upper end portion of the upper portion and the cover plate 7 of the left and right side plates 5 and the upper distribution member 8.

  FIG. 4A is a perspective view showing the air in and out of the back portion of the air conditioning chair of the above embodiment, FIG. 4B is an exploded perspective view showing the route of the conditioned air in the back portion with the cover plate removed, 4 (c) is an exploded perspective view showing the route of the air at the back with the cover plate removed, and FIG. 4 (d) is the attraction in the cross section along the line AA in FIG. 2 (a). Sectional drawing which shows the path | route of air and FIG.4 (e) is sectional drawing which shows the mixing state of conditioned air and attraction air in the cross section along the BB line in FIG.2 (b).

  As shown in the figure, in the air conditioning chair of this embodiment, the leg portion 2 communicating with the lower end portion 10a of the conditioned air passage 10 in the conditioned air passage 10 extending in the vertical direction on the back surface 3a side of the back portion 3 is shown. Air-conditioned air C is supplied from the air-conditioned air supply path 1, and the air-conditioned air C flows upward from the upper end portion 10 b of the air-conditioned air passage 10 into the combined flow path 12, passes through the combined flow path 12, and rises upward from the combined flow path 12. From the blower outlet 13 that opens obliquely rearward, it is blown out in a V shape upward and rearward on the back surface 3a side of the back portion 3. At that time, the conditioned air C flowing into the combined flow path 12 upward from the upper end portion 10b of the conditioned air passage 10 is attracted from the upper end portion 11b of the induced air passage 11 extending in the vertical direction along the conditioned air passage 10. When air in the air passage 11 is attracted and blown out obliquely upward and rearward on the back surface 3a side of the back portion 3 from the air outlet 13 together as mixed air M, and when the pressure in the attraction air passage 11 is thereby reduced, Air around the chair is introduced into the attraction air passage 11 from the lower end portion 11a of the attraction air passage 11 that opens to the outside.

  Therefore, according to the air-conditioning chair of this embodiment, the height and thickness of the back portion are suppressed, and the head and upper body position of the seated person are applied to the lecture room and classroom chair approaching the air-conditioning air outlet. Even in this case, the air around the chair is attracted and mixed with the conditioned air C as the mixed air M to be blown upward and obliquely rearward on the back surface 3a side of the back portion 3. Therefore, the air blown out by increasing the amount of air blown out. It is possible to improve the comfort of the seated person by spreading the air gap and reducing the temperature difference and the air flow velocity around the seated person.

  FIG. 5A is a perspective view showing the entry of foreign matter in the back of the air conditioning chair of the above embodiment, and FIG. 5B is an exploded perspective view showing the fall path of the foreign matter in the back with the cover plate removed. FIG. 5 (c) is an exploded perspective view showing the falling path of the foreign matter at the back portion with the cover plate, the partition plate, and one side plate removed, and FIG. 5 (d) is an A view in FIG. 2 (a). FIG. 5E is a cross-sectional view showing the foreign material fall path in the cross section taken along the line BB in FIG. 2B. is there.

  As shown in the figure, in the air conditioning chair of this embodiment, the joint passage 12 in which the air outlet 13 opens is connected to the upper end portion 11 b of the induced air passage 11 extending in the vertical direction along the air conditioning air passage 10. Since the attracting air passage 11 has a lower end portion 11 a that opens to the outside of the leg portion 2, the foreign matter enters from the outlet 13 into the combined passage 12. For example, when the pencil P falls, the pencil P falls through the inside of the induction air passage 11 aligned with the combined flow path 12 and is discharged to the outside from the opening of the lower end portion 11a of the induction air passage 11.

  Therefore, according to the air-conditioning chair of this embodiment, when used side by side in a school lecture room, classroom, auditorium, etc., the seated person of the rear chair is provided on the back surface 3a side of the back 3 of the front chair. Even if a foreign object such as a writing instrument is dropped from the air outlet 13, it can be discharged outside without entering the back portion 3.

  Furthermore, according to the air-conditioning chair of this embodiment, the air-conditioning air passage 10 is positioned behind the attraction air passage 11 at the center of the back portion 3 in the front-rear direction, overlapping with the attraction air passage 11 in the front-rear direction. Is extended in the left-right direction of the back part 3 and the central part is closed by the upper distribution member 8 and is opened obliquely left and right upward, so that it has a low flow resistance located at the center part in the left-right direction of the back part. Since the conditioned air C having a high flow velocity passing through the straight tubular conditioned air passage 10 efficiently attracts air in the low flow resistance straight tubular induced air passage 11 which is also located at the center in the left-right direction of the back portion 3, A large amount of attraction air I can be blown out as mixed air M together with the conditioned air C, and the air outlet 13 extends in the left-right direction of the back portion 3 while being blown out so much. The upper distributor Since it is closed at 8 and opened to the left and right diagonally upward, the air blown out does not directly hit the back of the seated person of the chair and diffuses to the surroundings without impairing the comfort of the seated person .

Further, according to the air conditioning chair of this embodiment, the lower end portion 11a of the attraction air passage 11, Gutotomoni straddling while closing a portion of the upper end portion of the leg 2 in the upper distribution member 9, in the extending direction of the air outlet 13 Since the openings are aligned obliquely below the air outlet 13 and directed obliquely to the left and right, the air in a wide range on the left and right sides of the leg 2 can be attracted and blown out as mixed air M together with the conditioned air C. In addition, when used side-by-side in a school lecture hall or auditorium, foreigners such as writing utensils from the outlet 13 provided on the back 3 side of the back 3 of the front chair can be seated 5 , it is guided in the extending direction of the air outlet 13 as shown in FIG. 5, enters the lower end portion 11 a of the induced air passage 11 aligned below the air outlet 13, and the seat 4 Since it falls to the left and right outside of the leg 2 instead of below, It can be recovered easily.

  Furthermore, according to the air conditioning chair of this embodiment suitable for lecture halls, classrooms, auditoriums, etc., the thickness of the back portion 3 is relatively thin compared to the case of a thick back portion in a theater chair etc. Since the distance to the air passage 10 is relatively short, the back of the seated person can be efficiently heated and cooled by heat conduction or heat absorption effect through the back portion 3 from the conditioned air passing through the conditioned air passage 10 and the seat portion. Since the leg part 2 is exposed below the leg 4 and the leg part 2 is relatively close to the leg of the seated person, heat radiation or heat absorption effect through the leg part 2 from the conditioned air passing through the conditioned air supply path 1 It is also possible to efficiently heat and cool the legs of the seated person.

  As mentioned above, although demonstrated based on the example of illustration, the air-conditioning chair of this invention is not limited to the above-mentioned example, It can change suitably within the range of description of a claim, for example, the seat part 4 is The leg portion 2 may be swingable back and forth. Further, the leg 2 may be fixed to the front surface of the stepped floor, may be a round pipe instead of a square pipe, or may have a duct-like conditioned air supply path 1 outside.

  Further, the arrangement of the conditioned air passage 10 and the induced air passage 11 is not limited to the above example. For example, the conditioned air passage 10 is arranged on the front side of the induced air passage 11 or is attracted to both the left and right sides of the conditioned air passage 10. The air passage 11 may be disposed, or at least one of the conditioned air passage 10 and the attraction air passage 11 may be disposed inside the back portion 3 without protruding from the back surface 3 a of the back portion 3.

  Furthermore, the air-conditioning chair of the present invention can be applied not only to a single chair as in the above-described example, but also to a connected chair or a chair assembled on a desk. It can be used not only in classrooms and lecture halls, but also in other places such as theaters and halls.

  Thus, according to the air-conditioning chair of the present invention, when applied to a lecture room or classroom chair in which the height and thickness of the back portion are suppressed and the position of the seated person's head or upper body approaches the air-conditioned air outlet However, the air around the chair is attracted and blown obliquely upward and backward on the back side of the back together with the conditioned air, so the air blown out is increased by increasing the amount of air blown out, and the air around the seated person Therefore, the comfort of the seated person can be sufficiently improved.

  In addition, according to the air-conditioning chair of the present invention, when used side by side in a school lecture room, classroom, auditorium, etc., the seated person of the rear chair can use the air outlet provided on the back side of the back of the front chair. Even if a foreign object such as a writing instrument is dropped, it can be discharged outside without entering the back.

DESCRIPTION OF SYMBOLS 1 Air-conditioning air supply path 2 Leg part 3 Back part 3a Back surface 4 Seat part 5 Side plate 5a Notch part 5b Cover plate 5c Opening part 6 Middle partition plate 7 Cover board 8 Upper distribution member 9 Lower distribution member 10 Air-conditioning air passage 10a Lower end part 10b Upper end portion 11 Induced air passage 11a Lower end portion 11b Upper end portion 12 Combined flow path 13 Air outlet C Air-conditioned air I Induced air M Mixed air

Claims (2)

A leg part (2) having an conditioned air supply path (1), a back part (3) and a seat part (4) supported by the leg part, and supplied from the conditioned air supply path of the leg part In the air-conditioning chair that blows conditioned air (C) obliquely upward and backward from the back part,
The back (3) is on the back (3a) side,
An conditioned air passage (10) having a lower end (10a) communicating with the conditioned air supply path (1) of the leg (2) and extending in the vertical direction;
An induced air passage (11) having a lower end portion (11a) that opens to the outside of the leg portion (2) and extending vertically along the conditioned air passage (10);
A combined flow path connected to the upper end portion (11b) of the attraction air passage (11) and extending in alignment with the attraction air passage and the upper end portion (10b) of the conditioned air passage (10) joining upwards ( 12)
An air outlet (13) that opens obliquely upward and backward from the joint channel (12);
The equipped,
The lower end portion (11a) of the attraction air passage (11) straddles while covering a part of the upper end portion of the leg portion (2), and extends below the outlet in the extending direction of the outlet (13). An air-conditioning chair that is lined up and opened obliquely left and right downward . The air-conditioning air passage (10) is located at the center in the left-right direction of the back portion (3) so as to overlap the attraction air passage (11) in the front-rear direction,
The said blower outlet (13) is extended in the left-right direction of the said back part (3), is obstruct | occluded in the center part, and is opened diagonally right and left upwards, The opening of Claim 1 characterized by the above-mentioned. Air conditioning chair.

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