JPH07247710A - Air conditioning structure of seats in ascending arrangement - Google Patents

Abstract

PURPOSE:To obtain larger air conditioning effects by a method wherein a groove for upward guide is provided along a vertical direction at the center of the rear surface of seat back of a seat so that conditioned air blowing off from a floor surface is collected into the groove and caused to flow vertically upward, thereby improving ventilation efficiency by the use of the seat. CONSTITUTION:A floor 12 of stair-shape is disposed on a floor slab 10 and legs 16 of a large number of seats 14 are fixed to horizontal surfaces 12a of the floor 12. A feed air passage A for conditioned air is formed between the floor 12 and the slab 10, and a blowoff port 20 for blowing off conditioned air toward the rear of a seat back 14b of each seat 14 is opened at a vertical surface 12b of the floor 12 to form an air conditioning structure. A goove 22 for upward guide is provided in the middle of the rear of the seat back 14b of the seat 14 in a vertical direction thereof. As a result, the conditioned air blowing off from a vertical surface of the floor is collected into the guide goove on the rear of the seat back to cause the air to flow along the groove vertically upward, thereby preventing the air from laterally dispersing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION This invention is applicable to, for example, stadiums,
The present invention relates to an air conditioning structure for staircase seats in a building having staircase seats like a theater.

[0002]

2. Description of the Related Art In a large space building such as a stadium and a theater, since a large number of people are accommodated, the indoor air is apt to be polluted, so that it is necessary to adequately ventilate the room. Therefore, seat air conditioning may be performed. In this seat air-conditioning, an air-conditioning air supply passage is provided between a stair-like floor and a floor slab, and the air-conditioning air is blown out to the lower part of each seat through a blow-out port opened in the floor.

However, since the conditioned air blown out from the vicinity of the seat needs to be quickly discharged to the ceiling side without staying in this vicinity, the air conditioning outlet is opened in a vertical plane and blown to the back of the seat back. A so-called open duct system has been proposed in which it is raised along the back surface.

[0004]

However, in reality, as shown in FIG. 5, the back surface of the backrest 1a of the seat 1 is flat or curved to the left and right. Therefore, when the blown air hits the back surface, it is indicated by an arrow in the drawing. As such, the particles were scattered laterally and stayed in the vicinity, and a sufficient ventilation effect was not obtained.

The present invention has been made to solve the above problems, and an object thereof is to improve the efficiency of ventilation using this type of seat and to obtain a greater air conditioning effect. It provides the structure.

[0006]

In order to achieve the above object, according to the present invention, a stepped floor portion is arranged on a floor slab, and a large number of seats having pedestals fixed to a horizontal plane of the floor portion,
An air supply passage for the conditioned air formed between the floor portion and the floor slab, and an outlet that is opened in a vertical surface of the floor portion and blows the conditioned air toward the back surface of the backrest of each seat. In the air-conditioning structure provided, a groove for an ascending guide is provided in the center of the back surface of the backrest along the vertical direction.

Further, according to the present invention, the stepped floor portion is integrated with the floor slab, and the inside of each vertical surface of the floor slab is surrounded by a partition wall so as to be parallel to the vertical surface. It is also possible to adopt a configuration in which the air outlet of the conditioned air is opened on the vertical surface.

[0008]

According to the above construction, the conditioned air blown from the vertical surface of the floor part is vertically gathered by flowing along the guide groove provided on the back surface of the backrest while being converged, so that the conditioned air moves laterally. It is possible to minimize the scattering to

When the construction of claim 2 is adopted, the air conditioning structure of the present invention can be applied to the floor portion integrated with the floor slab.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows an air conditioning structure for staircase passenger seats according to the present invention. In the figure, a pedestal 16 of a seat 14 is fixed to each horizontal surface 12a of a stair-like floor 12 arranged on a floor slab 10, and a pedestal is provided between a seat plate 14a of the seat 14 and the floor 12. There is a gap of 16 heights, and the vertical surface 12 of the floor 12 so that a person sitting in the front seat 14 does not interfere with the viewing of the person sitting in the rear seat 14.
The level difference of b and the height of the backrest 14b of the seat 14 are set.

The conditioned air is supplied from the air supply passage A formed between the floor slab 10 and the floor portion 12 to each seat through the air outlet 18 which is opened at a position facing the back surface of each seat 14 on each vertical surface 12b. It is supplied toward the lower part of the back surface of 14. An outlet guide plate 18a is fixed to the outlet 18 at an angle of 45 °, and the outlet angle of the conditioned air is set to 45 °.

The lower rear part of the seat 14 facing the air outlet 18 is covered with a skirt-shaped airflow guide plate 20 which is continuous with the backrest 14b, and the air blown to the lower part of the seat plate 14a is at the lower part of the seat plate 14a. To prevent distribution to

As shown in more detail in FIG. 2, a guide groove 22 having a substantially semicircular cross section is formed in the center of the back surface of the backrest 14b. The guide groove 22 has a function as a duct for focusing the blown-out conditioned air on this portion and guiding it to the upper side.

Therefore, the conditioned air blown out from the air outlet 18 at an angle of 45 ° collides with the airflow guide plate 20 as shown by the arrow in FIG. 1 and ascends along this slope, and at the center of the back surface of the backrest 14b. Was taken over by Figure 1,
As shown by the arrow 2, while focusing on the guide groove 22 and ascending along it, while taking in the breath and the like exhaled by the spectator, it ascends to the sky and dissipates, without causing lateral scattering, and As a result, the air can be swiftly replaced without stagnation of the air flow in the vicinity of the seat 14 or unnecessary convection.

3 and 4 show a second embodiment of the present invention. The same parts as those in the first embodiment are designated by the same reference numerals, and different parts will be described by using different reference numerals.

That is, in this embodiment, the floor slab 30 directly constitutes a staircase passenger seat, and the horizontal planes 30a and the vertical planes 30b are alternately continuous with a predetermined step, and each horizontal plane 30a Seat 1 via pedestal 16
4 is fixed.

Inside each of the vertical surfaces 30b, a partition wall 31 that surrounds the vertical surface 30b is formed integrally with the vertical surface 30b in a square shape, and the space surrounded by the partition wall 31 is parallel to the vertical surface 30b. And the air outlet 10 for the conditioned air is opened in the vertical surface 30b.

Therefore, the conditioned air flowing in parallel with each vertical surface 20b as shown by the arrow blows out through the outlet 10, collides with the airflow guide plate 20 set on the pedestal 16 as shown by the arrow, and along this inclination. Rises,
It is taken over by the back surface of the backrest 14b, and further converges from this surface to the guide groove 22 and rises up to the upper space of the seat 14 along with it, while taking in the breath exhaled by the spectators, ascending to the sky, scattering or ceiling. It will be exhausted through ventilation holes provided on the side.

[0020]

As described in the above embodiments, in the staircase air-conditioning structure for passenger seats according to the present invention, the conditioned air blown from the vertical surface of the floor portion is guided by the guide groove provided on the back surface of the backrest. The flow along this guide groove while converging in the vertical direction raises vertically and suppresses lateral scattering as much as possible, which improves the ventilation efficiency using the seat and has the advantage of obtaining a greater air conditioning effect. is there.

Further, even when the floor portion is integrated with the floor slab, the inside of each vertical surface is surrounded by a partition wall to form an air-conditioning air supply passage parallel to the vertical surface, and the vertical surface is also formed. This type of air conditioning structure can be adopted by forming the air-conditioning air outlet in the above.

[Brief description of drawings]

FIG. 1 is a cross-sectional explanatory view showing the flow of airflow in a staircase passenger seat air-conditioning structure according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a back surface shape of a seat back portion of the same structure.

FIG. 3 is a cross-sectional explanatory view showing a second embodiment in the case where the floor portion is integrated with the floor slab according to the present invention.

FIG. 4 is a sectional perspective view of the same.

FIG. 5 is an explanatory view showing a conventional defect of an air conditioning structure using a seat back.

[Explanation of symbols]

 10,30 Floor slab 12 Floor 12a, 30a Horizontal plane 12b, 30b Vertical plane 14 Seat 14a Seat plate 14b Backrest 16 Pillar 18 Air conditioning outlet 22 Guide groove A Air supply passage

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroshi Iwanami 4-640 Shimo-Seido, Kiyose-shi, Tokyo Inside Obayashi Technical Research Institute Co., Ltd. (72) Inventor Hidekazu Sato 4-640 Shimo-Seido, Kiyose-shi, Tokyo Obayashi Engineering Research Co., Ltd. In-house (72) Inventor Koichi Yamaguchi 4-640 Shimoseido, Kiyose-shi, Tokyo Obayashi Corporation Technical Research Institute

Claims (2)

[Claims] 1. A stair-like floor portion arranged on a floor slab, a plurality of seats having pedestals fixed to a horizontal plane of the floor portion, and conditioned air formed between the floor portion and the floor slab. In the air-conditioning structure including the air supply passage and the air outlet that opens in the vertical surface of the floor and blows the conditioned air toward the back surface of the backrest of each seat, a rising guide is provided in the center of the back surface of the backrest. An air-conditioning structure for staircase passenger seats, which is characterized by the provision of grooves for use in the vertical direction. 2. The stepped floor portion is integrated with a floor slab, and the inside of each vertical surface of the floor slab is surrounded by a partition wall to form an air supply passage for conditioned air parallel to the vertical surface. At the same time, the air-conditioning air outlet of the conditioned air is opened in the vertical surface.