JPWO2011148963A1 - Sunlight incident structure consisting of light incident adjustment member - Google Patents

Abstract

In the daylighting system, increase the amount of light collected in the morning and evening, increase the degree of freedom of setting and selecting the properties and materials of the light incident adjustment member to suppress the amount of light collected in the daytime, simplifying its manufacture, Increase efficiency. A light incident adjusting member (east-facing curved plate 2, west-facing curved plate 3) was provided in the daylighting portion 1 a of the optical duct 1. The lower surface of the light incident adjusting member is made up of light reflecting surfaces 2a and 3a that allow sunlight from a low altitude (path A) to enter the daylighting portion 1a, and the upper part is taken from sunlight from high altitude (paths B and C). It consists of light shielding surfaces 2b and 3b that partially block (path C) from entering the portion 1a. A light reflective upright flat plate 4 is provided on the north side of the light incident adjusting member, and the sunlight incident on the upright flat plate is guided to the daylighting unit 1b.

Description

  The present invention increases the amount of light collected in the morning and evening in the indoor daylighting unit, and suppresses the amount of light collected in the daytime.

  In particular, by being arranged for indoor daylighting units, it has a light reflection function that allows low-elevation sunlight with a small elevation angle to enter the daylighting unit, and high-altitude sunlight with a large elevation angle directly to the daylighting unit. The present invention relates to a sunlight incident structure including a light incident adjusting member, which is provided with a light shielding function for partially blocking incidence.

  In addition, low-altitude sunlight is incident on the daylighting unit due to the light reflecting action of the light incidence adjusting member disposed for the indoor daylighting unit, and the high altitude is improved by the light shielding function of the light incident adjusting member. The present invention relates to a sunlight incidence method for partially preventing direct incidence of sunlight on the daylighting unit.

  In this specification, the east-west direction is described as “left / right” and “horizontal”, the south side is described as “front”, and the north side is described as “rear” as necessary.

  Conventionally, there has been proposed a solar daylighting apparatus that increases the amount of light collected in the morning and evening in an indoor daylighting unit, and suppresses the amount of light collected in the daytime, thereby reducing fluctuations in the amount of light collected from morning to evening in the day. (See Patent Document 1 below).

  The solar lighting device here uses two lower concave (upwardly convex) curved plates having a prism surface causing light transmission loss as an upper surface and a substantially totally reflective smooth surface as a lower surface. .

  The pair of curved plates is set in the north-south direction with the lower end portions in common, and one lower surface faces east, the other lower surface faces west, and the entire cross section is substantially V. It arrange | positions so that it may become character shape (refer FIG. 20 etc.).

  In other words, in addition to the direct incidence of the morning sunlight, the reflected light from the east-facing down concave smooth surface is also incident on the lighting section, and the evening sunlight is incident on the lighting section. In addition to the direct incidence, the reflection from the downwardly concave smooth surface facing west also enters. As a result, the amount of light collected in the morning and evening is increased as compared with the case of only direct incidence to the daylighting unit.

  Further, sunlight during the day enters the prism surface (upper surface), and the transmitted light enters the daylighting unit. The amount of collected light is suppressed by the amount of loss associated with this transmission.

JP-A-10-112208

  As described above, in the case of a conventional daylighting device that attempts to average the amount of light collected indoors in the morning and evening and daytime, it partially transmits sunlight from a high altitude such as daytime and enters the daylighting unit. Therefore, a light incident adjusting member is used.

  The upper surface of the light incidence adjusting member is a prism surface having specific optical characteristics such as light transmission loss.

  For this reason, the upper surface of the light incident adjustment member is limited to an optically unique property, and there is a problem in that there are large technical restrictions in commercialization.

  The applicant of the present application has intensively studied and simulated the sunlight incident structure to increase the indoor daylight quantity in the morning and evening and suppress the daytime indoor light quantity, and led to the creation of the light incidence adjustment member. .

  In the present invention, the upper part of the light incident adjusting member whose bottom surface is a light reflecting surface has a light shielding property, that is, any property that is not light transmissive can be used as an upper component, The purpose is to increase the degree of freedom in setting and selecting properties, materials, etc., and to simplify and increase the efficiency of manufacturing the light incident adjustment member.

  Another object of the present invention is to design the upper part of the light incident adjusting member with many materials that are not light transmissive so as to make the appearance of the sunlight incident structure smarter.

  It is another object of the present invention to provide light incident adjusting members having various configurations and to enrich the technology of the sunlight incident structure composed of the light incident adjusting members.

The present invention solves the above problems as follows.
(1) A light reflection function that allows sunlight from a low altitude to be incident on the daylighting unit by being arranged for an indoor daylighting unit (for example, a daylighting unit 1a described later), and sunlight from a high altitude. A light incident adjusting member (for example, curved plates 2, 3, 11 to 16, and half-trumpet members 21 to 26, 31 to be described later) having a light shielding function for partially preventing direct incident on the daylighting unit. 33, 31'-33 ', and the sunlight incident structure consisting of semi-conical members 41-44)
The light incidence adjusting member is
In a state of being arranged with respect to the daylighting unit,
A lower surface portion (for example, light reflection surfaces 2a, 3a, 11a to 16a, 21a, 31a to 33a, which will be described later, light reflection) that reflects the sunlight reflected at least from the low altitude in the morning or evening to realize the light reflection function. Outer peripheral surfaces 41a to 44a),
On the side opposite to the lower surface portion, an upper portion (for example, light shielding surfaces 2b, 3b, 11b to 16b, 21b, which will be described later) that realizes the light shielding function against sunlight incident from at least a high altitude during the daytime. Shielding inner peripheral surface 41b),
The thing of a structure aspect is used.
(2) In (1) above,
A plurality of the light incident adjustment members are used, and as a whole,
The first lower concave curved surface (for example, light reflecting surfaces 2a and 11a to 13a described later) formed in a mode in which the lower surface portion protrudes eastward from the lower end portion toward the upper end portion, and the west direction It consists of a second downwardly concave curved surface (for example, light reflecting surfaces 3a, 14a to 16a described later) formed in a protruding manner,
Arranged to form an open area in the east, west and south directions,
The thing of a structure aspect is used.
(3) In (2) above,
The first downward concave curved surface or the second downward concave curved surface is:
Each is a plurality, and the collection elevation angle between the straight line connecting the upper end portion and the lower end portion of the concave curved surface and the horizontal line (for example, the collection elevation angle θ described later) is set differently,
The thing of a structure aspect is used.
(4) In (3) above,
The concentration elevation angle is
The first lower concave curved surface near the east side edge portion or the second lower concave curved surface near the west side edge portion was set at a smaller angle,
The thing of a structure aspect is used.
(5) In (1) above,
The light incidence adjusting member is
It consists of a semi-trumpet-like member (for example, a semi-trumpet-like member 21 described later) having an upper opening having a shape similar to one side of the sound outlet portion of the trumpet.
The thing of a structure aspect is used.
(6) In (5) above,
A plurality of the half-trumpet members arranged in the vertical direction are used, and as a whole,
A second opening having an upper opening and a lower opening (for example, semicircular openings 31c to 33c described later) and a light-reflecting surface portion (for example, light reflecting surfaces 31b to 33b described later) on the upper part. The half-buckled member is disposed below the uppermost first half-buckled member,
Sunlight incident between the first and second semi-buckled members is reflected and emitted from the lower opening to the daylighting unit.
The thing of a structure aspect is used.
(7) In (1) above,
The light incidence adjusting member is
It is a shape similar to one side of the injection portion of the funnel, and consists of a semi-funnel-shaped member (for example, semi-conical members 41 to 44 described later) in an aspect that spreads outward as it goes upward.
The thing of a structure aspect is used.
(8) In the above (1) to (7),
On the north side of the light incidence adjusting member, a light-reflecting upright surface portion (for example, a north side upright flat plate 4, 17 described later) for guiding incident sunlight to the daylighting portion is disposed.
The thing of a structure aspect is used.
(9) In the above (1) to (8),
Around the daylighting portion, a bowl-shaped surface portion (for example, a horizontal collar portion 18 and a collar portion 27 described later) for reflecting incident sunlight at least on the lower surface portion of the light incident adjustment member is disposed.
The thing of a structure aspect is used.
(10) Sunlight from a low altitude is made incident on the daylighting unit by the light reflecting action of the light incidence adjusting member disposed on the indoor daylighting unit, and the light shielding function of the light incident adjusting member is high. In the sunlight incidence method that partially blocks direct incidence of sunlight from the altitude into the daylighting unit,
Sunlight incident from at least a low altitude in the morning or evening is reflected downward by the light-reflecting lower surface portion of the incident adjustment member and led to the daylighting unit,
At least a part of sunlight incident from a high altitude during the daytime is shielded by the upper part of the light shielding property of the incident adjustment member.

  The present invention is directed to a sunlight incidence structure and a sunlight incidence method that include the light incidence adjustment member having the above-described configuration.

The present invention is based on the above problem solving means.
(11) Increase the degree of freedom in setting and selecting the properties, materials, etc. of the upper part of the light incident adjustment member, and simplifying and increasing the efficiency of manufacturing the light incident adjustment member.
(12) To make the exterior of the sunlight incident structure smarter,
(13) Enhancing the technology of sunlight incident structure consisting of light incident adjustment members,
be able to.

A solar light incident structure comprising two curved members having a light-reflective lower concave surface and a light-shielding upper convex surface, and a light-reflective north-side flat plate member to which the curved member is attached (part 2) It is explanatory drawing which shows 1). It is explanatory drawing which shows the sunlight incident structure (the 2) using the six bending members in the modification of FIG. A sunlight incident structure comprising a semi-bread-like member having an upper opening having a light-reflective lower surface and a light-shielding upper surface, and a light-reflective north side flat plate-like member to which the semi-bread-like member is attached ( It is explanatory drawing which shows the 3). FIG. 9 is an explanatory view showing a sunlight incident structure (part 4) in which the semi-bread-like member is formed by joining pieces (rectangles such as a rectangle and a triangle) in the modification of FIG. 3. FIG. 6 is an explanatory view showing a sunlight incident structure (No. 5) in which the inverted polygonal pyramid portion on the lower end side of the half-trumpet member is disposed in the light duct lighting unit in the modification of FIG. 4. FIG. 10 is an explanatory view showing a sunlight incident structure (No. 6) in which the upper side of the light reflective north side flat plate member is inclined in the south direction in the modification of FIG. 3. (a) shows a perspective view of the sunlight incident structure, and (b) shows a state in which incident light from the south side is reflected by the north plate member and enters the optical duct. It is explanatory drawing which shows the sunlight incident structure (the 7) which has arrange | positioned the light-reflective collar part in the substantially horizontal state around the east-west south side of a light duct lighting part by the modification of FIG. (a) shows a perspective view of the sunlight incident structure, and (b) shows a state in which Chaoyang is reflected by the light-reflecting lower surface of the light-reflective collar and the semi-trumpet member and enters the light duct. Yes. In the modification of FIG. 7, the upper side of the light-reflective north side flat plate member is inclined in the south direction, and the light-reflective collar has an arcuate horizontal part adjacent to the light duct lighting part, It is explanatory drawing which shows the sunlight incident structure (the 8) which consists of the taper part equivalent to the semicircle formed in the aspect which goes up to an outer side direction. Four half-trumpet-like members are arranged in such a manner that the lower three of them are arranged so as to be further away from the light-reflective north-side plate-like member as the lower opening of each becomes a circular arc portion with a larger diameter toward the lower side. It is explanatory drawing which shows sunlight incident structure (the 9). (a) shows a perspective view of the sunlight incident structure, and (b) shows a state in which Chaoyang is incident on the optical duct while being reflected between the half-trumpet members. It is explanatory drawing which shows the sunlight incident structure (the 10) formed in the modification of FIG. 9 in the aspect which four half trumpet-shaped members spread to the outer side as the downward direction. (a) shows a perspective view of the sunlight incident structure, and (b) shows a state in which Chaoyang is reflected between the half trumpet-like members and enters the optical duct. Three semi-conical members at the uppermost upper opening and three lower openings are arranged, and each lower opening becomes a larger-diameter arc portion toward the lower side and is further away from the light-reflective north plate member. It is explanatory drawing which shows the sunlight incident structure (the 11) provided with the semi-conical truncated cone-shaped member and the light-reflective collar part similar to FIG. 8 arrange | positioned under it. (a) shows a perspective view of the sunlight incident structure, and (b) shows that Chaoyang is reflected between the semi-conical member and the semi-conical member just below it, or between the semi-conical members. The state which injects into an optical duct is shown.

  The form for implementing this invention is demonstrated using FIGS. 1-11.

  The components of the reference numbers with alphabets used in FIGS. 1 to 11 (for example, the daylighting unit 1a) are in principle part of the components (for example, the light duct 1) of the numeral portions of the reference numbers.

In FIG.
1 is a well-known rectangular tube-shaped light duct for taking indoors while reflecting sunlight on the inner surface,
1a is a daylighting part which is an input part of sunlight,
2 is a shape in which a rectangle is curved into a substantially cylindrical circumferential surface, and is an east-facing curve that is fixed to the central portion of the south upper edge of the optical duct, the central portion of the north upper edge, and the north-side standing plate described later. Plate (light incident adjustment member),
2a is formed in a mode that protrudes eastward from the lower end portion toward the upper end portion, and has a concave concave light reflecting surface (lower surface) having a function of actively reflecting sunlight from a low altitude such as in the morning. ),
2b is formed on the side opposite to the light reflecting surface 2a, and is an upward convex light shielding surface (upper surface) that partially blocks sunlight from a high altitude such as daytime from directly entering the daylighting unit 1a.
3 has a shape similar to that of the curved plate 2, and is integrated with the central portion of the south upper end edge of the optical duct 1, the central portion of the north upper end edge, and a later-described north-side standing flat plate, and the lower end side is integrated with that of the curved plate 2. West-facing curved plate (light incident adjustment member) fixed in the above-described manner,
3a is formed in such a manner that it protrudes westward from the lower end portion toward the upper end portion, and has a lower concave light reflecting surface (lower surface) having a function of actively reflecting sunlight from low altitudes such as evening. ),
3b is formed on the side opposite to the light reflecting surface 3a, and is an upward convex light shielding surface (upper surface) that partially blocks sunlight from a high altitude such as daytime from directly entering the daylighting unit 1a.
4 is a light-reflective, vertical, vertical plate (same direction as the vertical direction of the optical duct) fixed to the upper edge of the north of the optical duct 1;
A to C are incident paths of sunlight,
Respectively.

  The overall shape of the curved plates 2 and 3 in FIG. 1 is symmetrical with respect to the north-south vertical plane passing through the center of the daylighting unit 1a.

  In the case of the sunlight incident structure shown in FIG. 1, incident light from a low altitude in the east or west is reflected by the light reflecting surfaces 2a and 3a of the curved plates 2 and 3, as shown by the path A, for example, and then enters the daylighting unit 1a. Enter.

  In addition to the path A, the incident light from the low altitude is also taken into the light duct 1 from a straight route to the daylighting unit 1a and a reflection route that is reflected by the north rising plate 4 and proceeds to the daylighting unit 1a.

  On the other hand, as shown by the path C, part of the incident light from the southern high altitude is guided to the light shielding surfaces 2b and 3b of the curved plates 2 and 3, and is prevented from entering the daylighting unit 1a.

  Of course, not all of the incident light from a high altitude is prevented from entering the daylighting unit 1a, but the incident light on the path B goes straight to the daylighting unit 1a. Further, the light is also taken into the light duct 1 by a reflection route that is reflected by the north-side standing flat plate 4 and proceeds to the daylighting unit 1a.

  In this way, incident light from a low altitude introduces the reflected light from the light reflecting surfaces 2a and 3a to the daylighting unit 1a, while a part of incident light from a high altitude is prevented from being introduced into the daylighting unit 1a. In this way, the amount of indoor light collection is averaged as much as possible during the time of the day.

  In FIG. 2, the reference numbers newly used are as follows, and the optical duct 1 of FIG. 1 is used.

In FIG.
11 to 13 have the same shape as that of the curved plate 2, and are east-facing curved plates having different converging elevation angles θ, which will be described later (light incident adjusting members: 11 is θ72.5 degrees, 12 is θ65 degrees, and 13 is θ55. Every time),
Reference numerals 11a to 13a denote lower concave light reflecting surfaces (lower surfaces) that exhibit the same action as the light reflecting surface 2a.
11b to 13b are upward convex light shielding surfaces (upper surface) that exhibit the same action as the light shielding surface 2b,
14 to 16 have the same shape as that of the curved plate 3, and are west-facing curved plates (light incident adjustment members: 14 is θ72.5 degrees, 15 is θ65 degrees, 16 is θ65 degrees, and 16 is θ55 degrees. ),
14a to 16a are lower concave light reflecting surfaces (lower surfaces) that exhibit the same action as the light reflecting surface 3a,
14b to 16b are upward convex light shielding surfaces (upper surfaces) that exhibit the same action as the light shielding surface 3b,
17 is a light-reflective, south-inclined north-side standing upright plate fixed to the north upper edge of the light duct 1;
18 is a light-reflective horizontal ridge that is set around the east, south, and west of the daylighting portion 1a of the light duct 1,
θ is an angle formed between a plane including the upper end edge and the lower end edge of each of the curved plates 11 to 13 and an upper end opening plane (lighting unit 1a) of the optical duct 1, and an upper end edge of each of the curved plates 14 to 16 A converging elevation angle (acute angle), which is an angle formed by a plane including the upper and lower edge portions and an upper opening plane (lighting portion 1a) of the optical duct 1;
Respectively.

  In addition, the whole shape of the curved plates 11-16 in FIG. 2 is a symmetrical shape with respect to the vertical plane of the north-south direction passing through the center of the lighting part 1a.

  The sun light incident structure in FIG. 2 is different from that in FIG. 1 in that the east-facing curved plates 11 to 13 having different east-directional condensing elevation angles θ and the west-facing curving plates 14 to 13 having different west-directional condensing elevation angles θ. 16 is arranged.

  As a result, morning and evening sunlight in winter is efficiently taken into the light reflecting surfaces 13a and 16a of the curved plates 13 and 16 having a converging elevation angle θ of 55 degrees.

  Further, sunlight in the morning and evening in summer is efficiently taken into the light reflecting surfaces 11a and 14a side of the curved plates 11 and 14 having a light collection elevation angle θ of 72.5 degrees.

  Here, if the converging elevation angle θ of all the curved plates is set to 55 degrees, the daylighting performance during the daytime in the summer is lowered, and the daylighting performance in the morning and evening in the wintertime is improved.

  Moreover, since the light-reflective horizontal collar part 18 is provided, the sun which reflected first by the horizontal collar part 18, and then re-reflected by the north side standing flat plate 17 and the light reflection surfaces 11a-16a of the curved plates 11-16. Light can enter the daylighting unit 1a.

  3 to 8, reference numerals newly used are as follows. The optical duct 1 in FIG. 1, the north standing upright plate 4 in the vertical direction, the north rising upright plate 17 in FIG. 2, and the light reflecting plate. Each of the horizontal collars 18 is used.

3 to 8,
21 is a shape similar to one side of the sound outlet portion of the trumpet, and is a semi-trumpet member (light incident adjusting member: see FIG. 3) having an upper opening fixed to the north upright flat plate 4.
21a is a light reflecting surface (lower surface) having a function of actively reflecting sunlight from low altitudes such as morning and evening downward.
21b is a light shielding surface (upper surface) that partially blocks sunlight from a high altitude such as daytime from directly entering the daylighting unit 1a.
Reference numeral 22 denotes an overall shape similar to that of the semi-trumpet member 21, which exhibits the same action, and is a semi-trumpet member (light incident adjustment member: see FIG. 4) having an upper opening made of rectangular and triangular parts (single parts),
Reference numeral 23 denotes a semi-wrapper shape of an upper opening in a mode in which an inverted polygonal pyramid portion on the lower end side of the semi-trumpet member 22 is fixed to the north inner peripheral surface of the optical duct 1 and an upper portion thereof is fixed to the north upright flat plate 4. Member (light incident adjusting member: see FIG. 5),
24 is the same shape as the semi-buckle-shaped member 21, exhibits the same action, and is a semi-buckle-shaped member having an upper opening fixed to the north-side standing flat plate 17 (light incident adjustment member: see FIG. 6).
25 is a shape similar to that of the semi-trumpet-like member 21, exhibits the same function, and is a semi-trumpet-like member having an upper opening fixed to the north-side standing flat plate 4 (light incident adjustment member: see FIG. 7).
26 is a shape similar to that of the semi-trumpet member 21, exhibits the same function, and is a semi-trumpet member (light incident adjustment member: see FIG. 8) having an upper opening fixed to the north-side standing flat plate 17.
27 is a light-reflective collar set in a continuous manner around the east, south, and west of the daylighting portion 1a of the light duct 1 (see FIG. 8),
27a is an arcuate horizontal part adjacent to the light duct lighting part,
27b is a taper portion equivalent to a semicircle formed in a manner that rises in the outward direction ahead of the arc-shaped horizontal portion;
D to I are incident paths of sunlight,
Respectively.

  In addition, the shape of each of the semi-trumpet members 21 to 26 and the collar portion 27 in FIGS. 3 to 8 is symmetrical with respect to the north-south vertical plane passing through the center of the daylighting portion 1a.

In the case of the sunlight incident structure in FIG. 3, sunlight from low altitudes in the east and west
(21) Incident path D due to continuous reflection on the light-reflecting surface 21a of the north-side standing flat plate 4 and the subsequent semi-trumpet member 21
(22) Incident path E due to reflection at the light reflecting surface 21a
(23) Incidence path F due to reflection at the standing plate 4 on the north side
(24) Direct incident path G
Enter the daylighting section 1a through a route such as.

  On the other hand, a part of the incident light from the southern high altitude is prevented from entering the daylighting portion 1a by the light shielding surface 21b of the semi-buckled member 21.

  Of course, not all of the incident light from a high altitude is prevented from entering the daylighting unit 1a. A part goes straight to the daylighting unit 1a without being blocked by the light shielding surface 21b. Further, the light is also taken into the light duct 1 by a reflection route that is reflected by the north-side standing flat plate 4 and proceeds to the daylighting unit 1a.

  Thus, the incident light from the low altitude also introduces the reflection on the light reflecting surface 21a into the daylighting unit 1a, while the part of the incident light from the high altitude is prevented from being introduced into the daylighting unit 1a. As a result, the amount of indoor light extraction in the day time zone is averaged as much as possible.

  The incident route of sunlight to the daylighting unit 1a in the sunlight incident structure of FIGS. 4 to 8 is basically the same as that of FIG.

  However, in the case of the sunlight incident structure shown in FIGS. 6 and 8, since the north-side standing flat plate 17 having the south slope is used, the sunlight reflected by the north-side standing flat plate and the light reflecting surface 21 a is indicated by the incident path H. The light enters the inner surface of the optical duct 1 at a smaller incident angle than when the vertical upright flat plate 4 is used.

  As a result, the number of internal reflections to the light exit in the optical duct 1 is less than when the north-side standing flat plate 4 is used, and the reflection loss of incident sunlight on the optical duct 1 can be reduced.

  Moreover, in the case of the sunlight incident structure of FIG. 7 and FIG. 8, the light reflective horizontal collar part 18 and the collar part 27 are provided.

  Therefore, the sunlight reflected first by the horizontal flange 18 and the flange 27 and then re-reflected by the light-reflecting surfaces (lower surfaces) of the north-side standing flat plates 4 and 17 and the semi-trumpet members 25 and 26 is, for example, the incident path I. As shown, the light can enter the daylighting unit 1a.

  In FIG. 9, the reference numbers newly used are as follows, and the optical duct 1, the vertical upright flat plate 4 in the vertical direction, and the half-trumpet member 21 in FIG.

In FIG.
31 is a shape in which the lower end side portion of the half-bread-like member 21 is cut out at a uniform height, and the upper-end outer edge of the half-bump-like member 21 when viewed from right above the north-side standing flat plate 4 immediately below the half-bread-like member. Due to the positional relationship in which the portion substantially coincides with that of the semi-trumpet member 21, the semi-trumpet member (light incident adjustment member) of the fixed upper and lower openings,
31a is a light reflecting surface (lower surface) that exhibits the same action as the light reflecting surface 21a,
31b is an upper light reflecting surface (upper surface),
31c is a semicircular opening for light input set between the lower end side of the semi-buckled member and the north-side standing flat plate 4;
32 is a shape in which the lower end side portion of the half-trumpet member 31 is cut out at a uniform height, and the upper end outer edge of the half-trumpet member 31 when viewed from directly above the north standing flat plate 4 immediately below the half-trumpet member. Due to the positional relationship in which the portions substantially coincide with the half trumpet-like members 21 and 31, respectively, the fixed semi-trumpet-like member (light incident adjustment member) of the upper and lower openings,
32a is a light reflecting surface (lower surface) that exhibits the same action as the light reflecting surface 21a,
32b is a light reflecting surface (upper surface) that exhibits the same action as the light reflecting surface 31b,
32c is a semi-annular opening for light input, which is set between the lower end side of the semi-trumpet member and the lower end side of the semi-trumpet member 31, that is, outside the semicircular opening.
Reference numeral 33 denotes a shape in which a lower end side portion of the half-trumpet member 32 is cut out at a uniform height. The upper edge of the upper end when viewed from directly above the north-side standing flat plate 4 immediately below the half-trumpet member. Due to the positional relationship in which the portions substantially coincide with each of the half-trumpet members 21, 31, 32, the semi-trumpet-like member (light incident adjustment member) of the fixed upper and lower openings,
33a is a light reflecting surface (lower surface) that exhibits the same action as the light reflecting surface 21a,
33b is a light reflecting surface (upper surface) that exhibits the same action as the light reflecting surface 31b,
33c is a semi-annular opening for light input that is set between the lower end side of the semi-trumpet member and the lower end side of the semi-trumpet member 32, that is, outside the semi-annular opening 32c;
J to M are incident paths of sunlight,
Respectively.

  In addition, the shape of each of the semi-buckled members 21, 31, 32, and 33 in FIG. 9 is symmetrical with respect to the vertical plane in the north-south direction passing through the center of the daylighting unit 1a.

In the case of the sunlight incident structure of FIG. 9, sunlight from low altitudes in the east and west
(31) An incident path J formed between the light reflecting surface 21a (lower surface) of the semi-trumpet member 21 and the light reflecting surface 31b (upper surface) of the semi-trumpet member 31 and reaching the semicircular opening 31c.
(32) Incidence path K formed between the light reflecting surface 31a (lower surface) of the half-trumpet member 31 and the light reflecting surface 32b (upper surface) of the half-trumpet member 32 and reaching the semi-annular opening 32c.
(33) An incident path L formed between the light reflecting surface 32a (lower surface) of the half-buckled member 32 and the light reflecting surface 33b (upper surface) of the half-buckled member 33 and reaching the semi-annular opening 33c.
(34) Direct incident path M
Enter the daylighting section 1a from the route.

  On the other hand, a part of the incident light from the southern high altitude is prevented from entering the daylighting portion 1a by the light shielding surface 21b of the semi-buckled member 21.

  Of course, not all of the incident light from a high altitude is prevented from entering the daylighting unit 1a. A part goes straight to the daylighting unit 1a without being blocked by the light shielding surface 21b.

  In this way, the incident light from the low altitude also introduces the reflection from the incident paths J, K, and L into the daylighting unit 1a, while the part of the incident light from the high altitude is prevented from being introduced into the daylighting unit 1a. In this way, the amount of indoor light collection is averaged as much as possible during the time of the day.

  In FIG. 10, reference numbers newly used are as follows, and the optical duct 1 in FIG. 1, the north-side standing flat plate 4 in the vertical direction, and the half-trumpet member 21 in FIG. 3 are incorporated.

In FIG.
31 ′ is a modification of the semi-trumpet-like member 31, and the semi-trumpet shape of the upper and lower openings in the form in which the outer edge portion of its upper end when viewed from directly above is outside of that of the semi-trumpet-like member 21. Member (light incident adjustment member),
32 'is a modified example of the half-trumpet member 32, and the upper and lower openings of the half-trumpet are such that their upper edge portion when viewed from directly above is outside of that of the half-trumpet member 31'. Shaped member (light incidence adjustment member),
33 'is a modified example of the half-trumpet-like member 33, and the upper and lower openings of the half-trumpet are such that their upper edge portion when viewed from directly above is outside the half-trumpet member 32'. Shaped member (light incidence adjustment member),
N to R are incident paths of sunlight,
Respectively.

  In addition, the shape of each of the semi-trumpet members 21, 31 ′, 32 ′, and 33 ′ in FIG. 10 is symmetrical with respect to the north-south vertical plane passing through the center of the daylighting unit 1a.

In the case of the sunlight incident structure of FIG. 10, since the normal direction of the incident side opening of the adjacent half-trumpet members is obliquely upward compared to that of FIG. ,
(41) Daylight incident from low altitude is efficiently taken,
(42) Increase the amount of sunlight incident from high altitude,
be able to.

  In FIG. 11, the reference numbers newly used are as follows, and the light duct 1, the vertical upright plate 4 in the vertical direction, and the light-reflective collar portion 27 in FIG.

In FIG.
41 is a semi-conical member (light incident adjustment member) of an upper opening fixed to the upper end side of the north-side standing flat plate 4;
41a is a light reflecting outer peripheral surface (lower surface) having a function of reflecting sunlight downward.
41b is a light shielding inner peripheral surface (upper surface) having a function of partially blocking sunlight from directly entering the daylighting portion 1a.
42 is a state in which the upper end outer edge portion when viewed from directly above is positioned on the north upright flat plate 4 directly below the semiconical member 41, and is fixed on the upper and lower sides. Semicircular truncated conical member (light incident adjustment member),
42a is a light reflecting outer peripheral surface (lower surface) having a function of reflecting sunlight downward,
42b is a light reflecting inner peripheral surface (upper surface) having a function of reflecting sunlight upward,
42c is a semi-circular opening for light input set between the lower end side of the semi-conical truncated member and the north-side standing flat plate 4;
43 is an upper side fixed to the north upright flat plate 4 directly below the semi-conical truncated member 42 in such a manner that the outer edge portion of its own upper end when viewed from directly above is outside of the semi-conical truncated member.・ Semi-conical member with lower opening (light incident adjustment member),
43a is a light reflecting outer peripheral surface (lower surface) having a function of reflecting sunlight downward.
43b is a light reflecting inner peripheral surface (upper surface) having a function of reflecting sunlight upward,
43c is a semicircular opening portion for light input that is set between the lower end side of the semiconical truncated conical member and the north-side standing flat plate 4 in a manner of a larger radius than the semicircular opening portion 42c,
44 is a state in which the upper end outer edge portion when viewed from directly above is positioned outside the half-conical member 43 directly on the north-side standing flat plate 4 directly below the half-conical truncated member 43. Semicircular truncated conical member (light incident adjustment member),
44a is a light reflecting outer peripheral surface (lower surface) having a function of reflecting sunlight downward.
44b is a light reflecting inner peripheral surface (upper surface) having a function of reflecting sunlight upward.
44c is a semicircular opening for light input that is set between the lower end side of the semiconical truncated conical member and the north-side standing flat plate 4 in a mode with a larger radius than the semicircular opening 43c,
S to W are incident paths of sunlight,
Respectively.

  In addition, each shape of the collar part 27, the semi-conical member 41, and the semi-conical trapezoidal members 42, 43, and 44 in FIG. 11 is symmetrical with respect to the vertical plane in the north-south direction passing through the center of the daylighting unit 1a. ing.

  In addition, the radial inclination of each circumferential surface of the semiconical member 41 and the semiconical trapezoidal members 42, 43, 44 with respect to the horizontal plane is from the uppermost semiconical member 41 to the lowermost semiconical member 44. It ’s loose.

In the case of the sunlight incident structure of FIG. 11, sunlight from low altitudes in the east and west
(51) Incident path S reflected by the light reflecting outer peripheral surface 41a of the semi-conical member 41
(52) Incident path T reflected by the light reflecting outer peripheral surface 42a of the semi-conical truncated member 42
(53) Incident path U reflected by the light reflecting outer circumferential surface 43a of the semi-conical truncated member 43
(54) Incident path V continuously reflected by the tapered portion 27b of the flange portion 27 and the light reflecting outer peripheral surface 44a of the semi-conical truncated cone member 44
(55) Direct incident path W
Enter the daylighting section 1a from the route.

  On the other hand, a part of the incident light from the southern high altitude is obtained by the daylighting portion 1a by the light shielding inner peripheral surface 41b of the semiconical member 41, the outer end side upper surface portions of the semiconical truncated cone members 42, 43, and 44. Entry into is blocked.

  Of course, not all of the incident light from a high altitude is prevented from entering the daylighting unit 1a. A part goes straight to the daylighting portion 1a without being blocked by the light shielding inner peripheral surface 41b or the like.

  In this way, the incident light from the low altitude introduces the reflected light from the incident paths S, T, U, and V into the daylighting unit 1a, while part of the incident light from the high altitude is introduced into the daylighting unit 1a. In this way, the indoor light intensity can be averaged as much as possible during the time of the day.

  The degree of sunlight shielding by the upper surfaces of the light shielding surfaces 2b, 3b, 11b to 13b, 14b to 16b, 21b, the light shielding inner peripheral surface 41b, and the semi-trumpet members 22 to 26 is higher than that in winter (the sun is higher). It becomes higher in summer). This reduces fluctuations in light intensity throughout the year.

  The light shielding surfaces 2b, 3b, 11b to 13b, 14b to 16b, and 21b, the light shielding inner peripheral surface 41b, and the upper surfaces of the half-trumpet members 22 to 26 can be in any form that can prevent light transmission, for example, light reflection Surface, light absorption surface, etc. are used. The material may be any material such as metal, plastic, and wood.

  The light shielding surface, the light shielding inner peripheral surface, and the upper surface may be decorated to enhance design.

  Curved plates 2, 3, 11-16, collars 18, 27, semi-trumpet members 21-26, 31-33, 31'-33 ', semi-conical member 41, semi-conical trapezoidal members 42-44, etc. The solar incident light to the daylighting unit can be adjusted by changing the number, inclination, shape, and distance between adjacent ones.

  The curved plates 2, 3, 11 to 16, the flange portions 18 and 27, the semi-trumpet members 21 to 26, 31 to 33, 31 ′ to 33 ′, the semiconical member 41, the semiconical trapezoidal members 42 to 44, and the like. When attaching to the optical duct 1 or the upright flat plates 4 and 17, various fixing means such as screwing, riveting, and adhesion are appropriately used.

As a light reflecting surface used in the above embodiment,
-Aluminum mirrors, stainless steel mirrors, resin mirrors with silver and aluminum vacuum metallized film treatment, glass mirror surfaces, and satin-like reflective surfaces.

Of course, the present invention is not limited to the above embodiments, for example,
(61) Applicable to indoor daylighting parts (ceiling windows, etc.) when no light duct is used.
(62) Instead of the curved plates 2, 3, 11-16, a flat plate is used,
(63) On the curved plates 2, 3, 11 to 16, the half-trumpet members 21, 24 to 26, 31 to 33, 31 ′ to 33 ′, the semiconical member 41, and the semiconical trapezoidal members 42 to 44 The direction of bending in the direction is not only circular, but also elliptical, parabolic, or a combination of these (including circular).
(63) The lower end pieces of the curved plates 2 and 3 are separated from each other.
(64) The lower end pieces of the curved plates 11 and 14 are separated from each other.
(65) The north upright flat plates 4, 17 are separated from the optical duct 1.
(66) Curved plates 2, 3, 11 to 16, flange portions 18 and 27, semi-trumpet members 21 to 26, 31 to 33, 31 ′ to 33 ′, semiconical member 41, and semiconical trapezoidal member 42 to 44 and the like are fixed in a state of being separated from the optical duct 1 and the north-side standing flat plates 4 and 17.
(67) The north-side standing flat plates 4 and 17 are omitted, and the curved plates 2, 3, 11 to 16, the flange portions 18 and 27, the half-trumpet members 21 to 26, 31 to 33, 31 ′ to 33 ′, and the half cone A column or a frame for fixing the cylindrical member 41, the semi-conical truncated members 42 to 44, and the like;
You may do it.

1: Light duct 1a: Daylighting part 2: Curved plate 2a facing east: Light reflecting surface (lower surface)
2b: Light shielding surface (upper surface)
3: West-facing curved plate 3a: Light reflecting surface (lower surface)
3b: Light shielding surface (upper surface)
4: North upright flat plates 11-13: Curved plates 11a-13a facing east: Light reflecting surface (lower surface)
11b-13b: Light shielding surface (upper surface)
14-16: Curved plates 14a-16a facing west: Light reflecting surface (lower surface)
14b-16b: Light shielding surface (upper surface)
17: North rising plate 18: Horizontal flange 21: Half trumpet member (FIG. 3)
21a: Light reflecting surface (lower surface)
21b: Light shielding surface (upper surface)
22: Half-trumpet member (Fig. 4)
23: Half-trumpet member (Fig. 5)
24: Half-trumpet member (Fig. 6)
25: Half-trumpet member (Fig. 7)
26: Half-trumpet member (FIG. 8)
27: collar portion 27a: arc-shaped horizontal portion 27b: taper portion 31: semi-trumpet member (light incident adjustment member)
31a: Light reflecting surface (lower surface)
31b: Upper light reflecting surface (upper surface)
31c: Semicircular opening 32: Semi-trumpet member (light incident adjustment member)
32a: Light reflecting surface (lower surface)
32b: Light reflecting surface (upper surface)
32c: Semi-annular opening 33: Semi-trumpet member (light incident adjustment member)
33a: Light reflecting surface (lower surface)
33b: Light reflecting surface (upper surface)
33c: Semi-annular openings 31 'to 33': Semi-buckled member (light incident adjusting member)
41: Semiconical member (light incidence adjusting member)
41a: Light reflecting outer peripheral surface (lower surface)
41b: Light shielding inner peripheral surface (upper surface)
42: Semi-conical member (light incident adjustment member)
42a: Light reflecting outer peripheral surface (lower surface)
42b: light reflection inner peripheral surface (upper surface)
42c: semicircular opening 43: semi-conical member (light incident adjustment member)
43a: Light reflecting outer peripheral surface (lower surface)
43b: Light reflection inner peripheral surface (upper surface)
43c: Semicircular opening 44: Semi-conical member (light incident adjustment member)
44a: Light reflecting outer peripheral surface (lower surface)
44b: Light reflection inner peripheral surface (upper surface)
44c: Semicircular apertures A to W: Sunlight incident path θ: Light collection elevation angle

The present invention solves the above problems as follows.
(1) A light reflection function that allows sunlight from a low altitude to be incident on the daylighting unit by being arranged for an indoor daylighting unit (for example, a daylighting unit 1a described later), and sunlight from a high altitude. In a solar light incident structure comprising a light incident adjusting member (for example, curved plates 2, 3, 11 to 16 described later), which is also provided with a light shielding function that partially blocks direct incidence to the daylighting unit.
The light incidence adjusting member is
In a state of being arranged with respect to the daylighting unit,
A lower surface portion (for example, light reflection surfaces 2a, 3a, and 11a to 16a described later) that reflects the sunlight incident from a low altitude at least in the morning or evening to realize the light reflection function;
On the side opposite to the lower surface portion, at least an upper portion (for example, light shielding surfaces 2b, 3b, 11b to 16b described later) that realizes the light shielding function against sunlight incident from a high altitude during the daytime, Yes, and
A plurality of the light incident adjustment members are used, and as a whole,
The first lower concave curved surface (for example, light reflecting surfaces 2a and 11a to 13a described later) formed in a mode in which the lower surface portion protrudes eastward from the lower end portion toward the upper end portion, and the west direction It consists of a second downwardly concave curved surface (for example, light reflecting surfaces 3a, 14a to 16a described later) formed in a protruding manner,
Arranged to form an open area in the east, west and south directions,
The first downward concave curved surface or the second downward concave curved surface is:
Each with multiples
The first lower elevation of the light collection elevation angle (for example, the light collection elevation angle θ described later) between the straight line connecting the upper end portion and the lower end portion of the lower concave curved surface and the horizontal line is close to the east side edge portion of the daylighting unit. The concave curved surface or the second lower concave curved surface closer to the west side edge portion of the daylighting unit was set at a smaller angle,
The thing of a structure aspect is used.
(2) In (1) above,
On the north side of the light incidence adjusting member, a light-reflecting upright surface portion (for example, a north side upright flat plate 4, 17 described later) for guiding incident sunlight to the daylighting portion is disposed.
The thing of a structure aspect is used.
(3) In the above (1) or (2),
Around the daylighting portion, a bowl-shaped surface portion (for example, a horizontal rod portion 18 described later) for reflecting incident sunlight at least on the lower surface portion of the light incident adjusting member is disposed .
The thing of a structure aspect is used.

  The present invention is directed to a sunlight incident structure including a light incident adjusting member having the above-described configuration.

The form for implementing this invention is demonstrated using FIG . 1 and FIG . In addition, the sunlight incident structure of FIGS. 3-11 is also demonstrated collectively as a reference example of embodiment of FIG. 1 and FIG.

Claims (10)

A light reflection function that allows sunlight from a low altitude to enter the daylighting unit and a direct incidence of sunlight from a high altitude to the daylighting unit by being arranged for the daylighting unit indoors. In the sunlight incident structure consisting of a light incident adjustment member, which is also equipped with a light shielding function to block,
The light incidence adjusting member is
In a state of being arranged with respect to the daylighting unit,
A lower surface part that realizes the light reflection function by reflecting sunlight incident from a low altitude at least in the morning or evening downward;
On the opposite side of the lower surface portion, at least an upper portion that realizes the light shielding function against sunlight incident from a high altitude during the daytime,
A sunlight incidence structure comprising a light incidence adjusting member. A plurality of the light incident adjustment members are used, and as a whole,
A first lower concave curved surface formed in a manner of projecting in the east direction from the lower end portion toward the upper end portion thereof, and a second lower concave curved surface formed in a manner of projecting out in the west direction. From the face,
Arranged to form an open area in the east, west and south directions,
A sunlight incident structure comprising the light incidence adjusting member according to claim 1. The first downward concave curved surface or the second downward concave curved surface is:
Each is a plurality, and the collection elevation angle between the straight line connecting the upper end portion and the lower end portion of the concave curved surface and the horizontal line is set differently,
A sunlight incident structure comprising the light incidence adjusting member according to claim 2. The concentration elevation angle is
The first lower concave curved surface near the east side edge portion or the second lower concave curved surface near the west side edge portion is set at a smaller angle.
A solar light incident structure comprising the light incidence adjusting member according to claim 3. The light incidence adjusting member is
It consists of a semi-trumpet member with an upper opening shaped like one side of the sound outlet part of the trumpet,
A sunlight incident structure comprising the light incidence adjusting member according to claim 1. A plurality of the half-trumpet members arranged in the vertical direction are used, and as a whole,
A second half-bread-like member having an upper opening and a lower opening and having a light-reflecting surface portion on the upper part is disposed below the uppermost first half-brush-like member. ,
Sunlight incident between the first and second semi-buckled members is reflected and emitted from the lower opening to the daylighting unit.
A solar light incident structure comprising the light incidence adjusting member according to claim 5. The light incidence adjusting member is
It is a shape similar to one side of the injection part of the funnel, consisting of a semi-funnel shaped member that spreads outward as it goes upward.
A sunlight incident structure comprising the light incidence adjusting member according to claim 1. On the north side of the light incident adjustment member, a light-reflective standing surface portion for guiding incident sunlight to the daylighting portion is disposed.
A sunlight incident structure comprising the light incident adjusting member according to claim 1. Around the daylighting portion, a bowl-shaped surface portion for reflecting incident sunlight at least on the lower surface portion of the light incident adjustment member is disposed,
A sunlight incident structure comprising the light incidence adjusting member according to claim 1. The sunlight from the low altitude is made incident on the daylighting part by the light reflecting action of the light incident adjusting member arranged for the indoor daylighting part, and the light shielding function of the light incident adjusting member is used to make the sunlight from the high altitude. In a sunlight incidence method that partially blocks direct incidence of sunlight into the daylighting unit,
Sunlight incident from at least a low altitude in the morning or evening is reflected downward by the light-reflecting lower surface portion of the incident adjustment member and led to the daylighting unit,
Shielding at least a part of sunlight incident from a high altitude in the daytime with an upper part of the light shielding property of the incident adjustment member,
A sunlight incidence method comprising a light incidence adjusting member.

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