JP7202753B1 - Structure - Google Patents

Abstract

A structure is provided that can change the degree of gap (opening area) between two adjacent fins among a plurality of fins arranged in a row with a simpler configuration. A structure having a plurality of fins arranged in a predetermined direction and capable of changing the degree of gap between two adjacent fins, wherein each of the plurality of fins is band-shaped and elastically deformable. formed as possible. connecting a first support portion rotatable about a first rotation axis, a second support portion rotatable about a second rotation axis, and one end of the first support portion and the plurality of fin portions; A plurality of bendingly deformable first connecting portions and a plurality of bendingly deformable second connecting portions connecting the second support portion and the other ends of the plurality of fin portions are provided. The pair of first and second connecting portions with respect to the fin portion are formed so as to be spaced apart from the first and second rotation shafts from one side to the other side in the predetermined direction. [Selection drawing] Fig. 2

Description

The present disclosure relates to structures.

Conventionally, a frame-shaped grill, a plurality of horizontal plate-shaped fixed fins parallel to each other formed integrally with the grill on the front surface of the grill, and a vertical plate-shaped parallel to each other behind the plurality of fixed fins A grill-type air outlet having a plurality of movable fins has been proposed (see Patent Document 1). Here, each movable fin portion is rotatably supported on the upper and lower surfaces of the grill by a shaft integrally formed at the center of both upper and lower ends, and has an arm integrally formed on the side surface portion in the same direction. It is rotatably connected to the connecting portion via the connecting portion. A knob is integrally formed at substantially the center of the connecting member, and this knob protrudes forward (into the passenger compartment) from between the two central fixed fin portions. With such a configuration, the operation of the knob allows the adjacent movable fin portions to come into contact with each other to close the air outlet.

Utility Model Registration No. 2524468

In the air outlet of Patent Document 1, each movable fin portion, the grille, and the connecting member are separately formed, and each movable fin portion is rotatably supported by the grille, or a knob is provided between two fixed fin portions. It is necessary to rotatably connect each movable fin portion to a connecting member arranged so as to protrude forward from. As a result, the number of parts increases and complicated assembly is required.

A main object of the present disclosure is to provide a structure that can change the degree of gap (opening area) between two adjacent fins among a plurality of fins arranged in a row with a simpler configuration. .

The present disclosure has taken the following means to achieve the above-mentioned main objectives.

The structure of the present disclosure is
A structure comprising a plurality of fins arranged in a predetermined direction and capable of changing a gap between two adjacent fins,
each of the plurality of fin portions is formed in a strip shape and is elastically deformable,
a first support portion rotatable about a first rotation axis;
a second support that is rotatable about a second rotation axis;
a plurality of first connecting portions each connecting the first support portion and one end of the plurality of fin portions and capable of bending deformation;
a plurality of second connecting portions each connecting the second support portion and the other ends of the plurality of fin portions and capable of bending deformation;
with
The paired first and second connecting portions of the fin portion are formed so as to separate from the first and second rotating shafts as they go from one side to the other side in the predetermined direction. ,
From the use base shape in which the plurality of fin portions are curved toward one side with respect to a predetermined plane including the first and second rotation shafts, the first and second support portions When the plurality of first and second connecting portions are rotated about two rotation axes in predetermined directions opposite to each other, the plurality of first and second connecting portions move toward the side where the first and second support portions and the plurality of fin portions approach each other. along with this, out-of-plane deformation due to elastic deformation occurs in the plurality of fin portions, and the plurality of fin portions inclines to the other side in the predetermined direction, thereby causing a gap between the two adjacent fin portions. The gap between
This is the gist of it.

In the structure of the present disclosure, the plurality of fins are curved toward one side with respect to a predetermined plane containing the first and second rotation shafts, and the first and second support portions are arranged at the first and second support portions. 1. When rotating about a second rotating shaft in predetermined directions opposite to each other, the plurality of first and second connecting portions are moved to the side where the first and second supporting portions and the plurality of fin portions approach each other. bending deformation. Since the distance between the pair of first and second connecting portions with respect to the first and second rotating shafts and the fin portion is longer on one side in the predetermined direction than on the other side, the first and second connecting portions of each pair When the connecting portion bends and deforms, each fin portion undergoes out-of-plane deformation due to elastic deformation, and the fin portion tilts to the other side in the predetermined direction. One side and the other side in a predetermined direction may be the same for all fins (for example, the same for all fins on the front and rear sides), or some fins and the remaining fins may be the same. (For example, some fins have front and back sides, and the remaining fins have back and front sides). When the plurality of fin portions inclines to the other side in the predetermined direction in this manner, the gap (opening area) between two adjacent fin portions increases. That is, by rotating the first and second support portions from the use base shape, it is possible to change the degree of the gap (opening area) between the two adjacent fin portions. Moreover, since the first and second support portions and the plurality of fin portions are connected via the plurality of first and second connecting portions, the structure is simpler, and specifically, the number of parts can be reduced. It is possible to change the gap (opening area) between two adjacent fins with a configuration that facilitates omission of complicated assembly. The rotation of the first and second support portions may be performed manually or automatically (driving of the drive source).

2 is a perspective view of a structure 20; FIG. 2 is a top view of structure 20. FIG. 4 is a perspective view of the structure 20 in its use base shape; FIG. FIG. 4 is a top view when the structure 20 is in the use base shape; FIG. 4 is a perspective view when the fin portion 22 of the structure 20 is elastically deformed from the base shape for use; 4 is a top view when the fin portion 22 of the structure 20 is elastically deformed from the base shape for use; FIG. It is a perspective view of 20 A of structures. FIG. 3 is a perspective view of a structure 20B; 4 is a top view of structure 120. FIG. Fig. 12 is a perspective view of the structure 120 in its use base shape; 4 is a perspective view of the structure 120 when the fin portion 22 is elastically deformed from the base shape for use; FIG. FIG. 4 is a top view when the fin portion 22 of the structure 120 is elastically deformed from the shape of the used base; 4 is a top view of structure 220. FIG. Fig. 12 is a perspective view of the structure 220 in its use base shape; 4 is a perspective view of the structure 220 when the fin portion 22 is elastically deformed from the base shape for use; FIG. 4 is a top view when the fin portion 22 of the structure 220 is elastically deformed from the shape of the used base; FIG. 3 is a perspective view of structure 320. FIG. 4 is a perspective view of structure 420. FIG. FIG. 11 is an explanatory diagram showing a state of two-color molding of the structure 420;

Next, a mode for carrying out the present disclosure will be described using examples.

1 and 2 are perspective and top views of a structure 20 according to an embodiment of the present disclosure. The left-right direction, the front-rear direction, and the up-down direction of the structure 20 are as shown in FIGS. Needless to say, the orientation of arrangement of the structures 20 is not limited to this. The structure 20 of the embodiment is an integrally molded product, for example, integrally molded by injection molding, blow molding, extrusion molding, or 3D printing of a resin material or rubber material, or by casting, forging, pressing, cutting, or molding a metal material. It is integrally formed by extrusion molding, 3D printing, or the like.

As shown in FIGS. 1 and 2, the structure 20 is formed in a rectangular plate shape as a whole, and includes six fin portions 22[1] to 22[6] and a pair of first and second support portions. 26, 28, and six pairs of first and second connecting portions 30[1] to 30[6] and 32[1] to 32[6]. The numbers in square brackets in the specification are given in order from the front side to the rear side of the structure 20, and correspond to the subscripts (subscript numbers) in FIG. Further, in the following description, the fin portions 22[1] to 22[6], the first and second connecting portions 30[1] to 30[6], 32[1] to 32[6], etc. are The fin portion 22, the first and second connecting portions 30 and 32, etc. may be referred to by omitting the numbers in parentheses and square brackets.

Each of the fin portions 22[1] to 22[6] is formed in a belt shape extending in the left-right direction and is elastically deformable. The fin portions 22[1] to 22[6] are arranged in a row in the front-rear direction. The first support portion 26 is arranged on the left side with respect to the fin portions 22[1] to 22[6]. The first support portion 26 is rotatable around a first rotation shaft 27 extending in the front-rear direction at the left end of the structure 20 (first support portion 26). The second support portion 28 is arranged on the right side with respect to the fin portions 22[1] to 22[6]. The second support portion 28 is rotatable around a second rotation shaft 29 extending in the front-rear direction at the right end of the structure 20 (second support portion 28). The first and second rotating shafts 27 and 29 are spaced apart in the left-right direction and extend in parallel to each other in the front-rear direction. Note that the rotation of the first and second support portions 26 and 28 may be performed either manually or automatically (driving a driving source such as a motor).

The first connecting portions 30[1] to 30[6] respectively connect the first supporting portion 26 and the left ends of the fin portions 22[1] to 22[6] in the horizontal direction. More specifically, the first support portion 26 and the left ends of the fin portions 22[1] to 22[6] are positioned above the first connecting portions 30[1] to 30[6] so as to form valley folds. Bending deformation to approach each other is possible. Each of the first connecting portions 30[1] to 30[6] is formed so as to separate from the first rotating shaft 27 as it goes from the front side to the rear side.

The second connecting portions 32[1] to 32[6] respectively connect the second supporting portion 28 and the right ends of the fin portions 22[1] to 22[6] in the horizontal direction. More specifically, the second support portion 28 and the right ends of the fin portions 22[1] to 22[6] are positioned above the second connecting portions 32[1] to 32[6] so as to form valley folds. Bending deformation to approach each other is possible. Each of the second connecting portions 32[1] to 32[6] is formed so as to separate from the second rotating shaft 29 as it goes from the front side to the rear side.

In the embodiment, acute angles θa[1] to θa[6] formed by the extending direction of the first rotation shaft 27 and the extending directions of the first connecting portions 30[1] to 30[6], and , the acute angles θb[1] to θb[6] formed by the extending direction of the second rotation shaft 29 and the extending directions of the second connecting portions 32[1] to 32[6] are all the same. It's becoming Therefore, each of the fin portions 22[1] to 22[6] has an isosceles trapezoid.

Next, pre-deformation of the structure 20 and change of the gap (opening area) between two adjacent fin portions 22 will be described. 3 and 4 are a perspective view and a top view when the structure 20 is in the use base shape, and FIGS. 5 and 6 are perspective views when the fin portion 22 of the structure 20 is elastically deformed from the use base shape. Fig. 1 and a top view; In addition, in FIGS. 3 to 6, ridge lines are illustrated for ease of viewing.

Pre-deformation of the structure 20 will be described. Pre-deformation involves deforming the structure 20 from the as-manufactured shape to the use base shape. The manufactured shape is a flat plate shape as shown in FIGS. 1 and 2, and the used base shape is a predetermined shape including first and second rotating shafts 27 and 29 as shown in FIGS. It has an upwardly convex curved shape with respect to a plane (a plane extending in the front-rear direction and the left-right direction). The structure 20, in its use base configuration, is mounted on a dashboard, for example, as an automotive air vent.

Next, a change in the degree of gap (opening area) between two adjacent fin portions 22 in the structure 20 will be described. 3 and 4, the first and second support portions 26 and 28 are rotated around the first and second pivot shafts 27 and 29 from the front side of FIG. When rotated clockwise and counterclockwise as viewed, the first and second connecting portions 30[1] to 30[6] and 32[1] to 32[6] become valley folds when viewed from above. Specifically, the first and second support portions 26 and 28 and the left and right ends of the fin portions 22[1] to 22[6] are connected to the first and second connecting portions 30[1] to 30[6]. ], 32[1] to 32[6] are bent and deformed so as to approach each other on the upper side. As described above, the rotation of the first and second support portions 26 and 28 may be performed either manually or automatically (driving a driving source such as a motor). In the structure 20, the distances between the first and second rotating shafts 27 and 29 and the first and second connecting portions 30[1] to 30[6] and 32[1] to 32[6] are larger than those on the front side. and long in the back. Therefore, when the first and second connecting portions 30[1] to 30[6] and 32[1] to 32[6] are bent and deformed, the fin portion 22[1] is deformed as shown in FIGS. 22[6] undergoes out-of-plane deformation due to elastic deformation, and the fin portions 22[1] to 22[6] tilt rearward. Further, in the structure 20, the angles θa[1] to θa[6] and θb[1] to θb[6] are all the same. Therefore, each of the fin portions 22[1] to 22[6] inclines rearward by the same extent. When the fin portions 22[1] to 22[6] are tilted rearward, the gap (opening area) between two adjacent fin portions 22 increases. That is, in the structure 20, the degree of gap (opening area) between the two adjacent fin portions 22 can be changed by rotating the first and second support portions 26 and 28 from the shape of the base used. . Moreover, in the embodiment, the structure 20 connects the first and second support portions 26 and 28 and the fin portions 22[1] to 22[6] to the first and second connecting portions 30[1] to 30[6]. ] and 32[1] to 32[6], it is possible to reduce the number of parts and omit complicated assembly.

Here, shape examples of the first and second connecting portions 30 and 32 will be described using the following structures 20A and 20B. FIG. 7 is a perspective view of the structure 20A. As shown in FIG. 7, in the structural body 20A, the first and second connecting portions 30A[1] to 30A[6] and 32A[1] to 32A[6] are arranged in order from the front side to the rear side. 1. It is formed as a recess having a V-shaped cross section (V-shaped when viewed in the extending direction) extending away from the second rotating shafts 27 and 29 and recessed from the upper surface to the lower surface. By forming the first and second connecting portions 30A[1] to 30A[6] and 32A[1] to 32A[6] in this way, compared to the first and second supporting portions 26 and 28, , the bending rigidity against bending deformation that causes valley folds when viewed from above can be reduced.

FIG. 8 is a perspective view of the structure 20B. As shown in FIG. 8, in the structural body 20B, the first and second connecting portions 30B[1] to 30B[6] and 32B[1] to 32B[6] are directed from the front side to the rear side as a whole. It is formed so as to separate from the first and second rotating shafts 27 and 29 as it goes. Each of the first and second connecting portions 30B and 32B has multiple beam portions 33 and multiple bridge portions 34 . The beams 33 extend away from the first and second pivot shafts 27 and 29 from the front side to the rear side, and are arranged side by side at intervals in the left-right direction. Each of the plurality of bridge portions 34 extends in the left-right direction, and is one of the first and second support portions 26 and 28 and the beam portion 33, the two adjacent beam portions 33, the beam portion 33 and the fin portion 22. connecting something.

Specifically, the plurality of beams 33 are arranged at a first position in the extending direction of the beams 33 to provide first and second support portions 26 and 28 or first and second support portions 26 and 28 via a bridge portion 34 . It is connected to the beam portion 33 adjacent to the portions 26 and 28, and at a second position different from the first position in the extending direction of the beam portion 33, the fin portion 22 or the fin portion 22 side via the bridge portion 34. is connected to the beam portion 33 next to the . In the example of FIG. 8, the first positions are the front end, the rear end, and the center in the extending direction of the beam portion 33, and the front middle between the front end and the center, and the middle between the rear end and the center. and the second position is the other of these.

In the structural body 20B, by forming the first and second connecting portions 30B[1] to 30B[6] and 32B[1] to 32B[6] in this way, the first and second supporting portions 26, Compared to 28, it is possible to lower the bending rigidity against bending deformation that causes a valley fold when viewed from above. During this bending deformation, due to bending and torsion of each beam portion 33, the upper surface side of each of the first and second connecting portions 30B and 32B is bent through the first and second connecting portions 30B and 32B. , the length in the connecting direction in which the second support portions 26 and 28 and one end and the other end of the fin portion 22 are connected is shortened, and the length in the connecting direction on the lower surface side is suppressed from becoming long.

Each of the first and second connecting portions 30B and 32B may have only one beam portion 33 instead of having a plurality of beam portions 33 as shown in FIG. Further, each of the first and second connecting portions 30B and 32B has a plate-like portion combined with the upper surface and/or the lower surface of the shape shown in FIG. 8 instead of the shape shown in FIG. It may be formed so that the entire structure has a plate shape. The thickness of the plate-like portion is preferably, for example, about 1/5, 1/8, or 1/10 or less of the thickness of the structure 20B (the first and second support portions 26 and 28).

In the structure 20 of the embodiment described above, each of the six fin portions 22[1] to 22[6] has a strip shape extending in the left-right direction and is elastically deformable. The portions 26 and 28 are rotatable around first and second rotating shafts 27 and 29, respectively, and are six pairs of first and second connecting portions 30[1] to 30[6], 32[1]. .about.32[6] connect the first and second support portions 26, 28 and the left and right ends of the fin portions 22[1] to 22[6], respectively, and are bendable. Further, the pair of first and second connecting portions 30[i] and 32[i] for each fin portion 22[i] (i: 1 to 6) are arranged from the front side to the rear side. It is formed so as to be separated from the second rotating shafts 27 and 29 . With such a configuration, the degree of gap (opening area) between two adjacent fin portions 22 can be changed by rotating the first and second support portions 26 and 28 from the shape of the base used. Moreover, the structure 20 is configured by connecting the first and second support portions 26 and 28 and the fin portions 22[1] to 22[6] to the first and second connecting portions 30[1] to 30[6] and 32[]. 1] to 32 [6], it is possible to reduce the number of parts and omit complicated assembly.

In the structural body 20 of the embodiment, the first and second connecting portions 30[1] to 30[6] and 32[1] to 32[6] have the angles θa[1] to θa[6] and θb [1] to θb[6] are all formed to be the same. However, the angles θa[1] to θa[6] and θb[1] to θb[6] may be formed so that at least some of them are different. Even in this case, the paired first and second connecting portions 30[i], 32[i] for each fin portion 22[i] (i: 1 to 6) are formed at angles θa[i], It is preferable that θb[i] are formed to be the same as each other.

FIG. 9 is a top view of structure 120 of a modified example. The left-right direction, the front-rear direction, and the up-down direction of the structure 120 are as shown in FIG. Needless to say, the orientation of arrangement of the structures 120 is not limited to this. As shown in FIG. 9, the structure 120 has angles θa[i], θb It differs from the structure 20 in that [i] is formed so as to gradually decrease.

Next, pre-deformation of the structure 120 and change of the gap (opening area) between two adjacent fin portions 22 will be described. 10 is a perspective view when the structure 120 is in the base shape for use, and FIGS. 11 and 12 are a perspective view and a top view when the fin portion 22 of the structure 120 is elastically deformed from the base shape for use. . Note that in FIGS. 10 to 12, ridge lines are illustrated for ease of viewing.

In the pre-deformation, the structure 120 is deformed from the manufactured shape (the state of FIG. 9) to the used base shape (the state of FIG. 10). Here, the manufactured shape and the used base shape of the structure 120 are similar to the manufactured shape (see FIGS. 1 and 2) and the used base shape (the state of FIGS. 3 and 4) of the structure 20 .

With respect to the structure 120, the first and second support portions 26 and 28 are rotated clockwise and counterclockwise around the first and second rotating shafts 27 and 29 from the shape of the base used, as viewed from the front side of FIG. When moved, the first and second connecting portions 30[1] to 30[6] and 32[1] to 32[6] are bent and deformed into valley folds when viewed from above. In the structure 120, similarly to the structure 20, the first and second rotation shafts 27, 29 and the first and second connecting portions 30[1] to 30[6], 32[1] to 32[6] is longer on the rear side than on the front side. Therefore, when the first and second connecting portions 30[1] to 30[6] and 32[1] to 32[6] are bent and deformed, the fin portion 22[1] is deformed as shown in FIGS. 22[6] undergoes out-of-plane deformation due to elastic deformation, and the fin portions 22[1] to 22[6] tilt rearward. Further, in the structure 120, the angles θa[i] and θb[i] described above gradually decrease as "i" increases. Therefore, when the first and second support portions 26 and 28 are rotated by a certain amount, the fin portion 22[i] tilts rearward less as "i" increases. As a result, the degree of gap (opening area) between two adjacent fins 22 is the gap between fins 22[1] and 22[2], ..., fins 22[5] and 22[6]. The gap between them gradually becomes smaller. That is, in the structure 120, the degree of gap (opening area) between the two adjacent fin portions 22 when the first and second support portions 26 and 28 are rotated by a certain amount of rotation is defined as the fin portion 22 The gaps between [1] and 22[2], .

In the structural body 120 of the modified example, the first and second connecting portions 30[i], 32[i] (i: 1 to 6) have angles θa[i], θb[i] as “i” increases. is formed so as to gradually decrease. However, it is not limited to this, and may be formed such that the angles θa[i] and θb[i] are the same for at least two consecutive “i”s. For example, when “i” is 4 to 6, the angles θa[i] and θb[i] gradually decrease as “i” increases. [i] may be formed to be the same within a range larger than the angles θa[4] and θb[4].

In the structures 20 and 120 of the embodiment and modified examples, the six pairs of first and second connecting portions 30[1] to 30[6] and 32[1] to 32[6] are respectively arranged from the front side to the rear side. It shall be formed so that it may separate from the 1st rotating shaft 27 as it goes to . However, it is not limited to this, and some pairs of the six pairs of first and second connecting portions 30[1] to 30[6] and 32[1] to 32[6] are connected to the front side. It may be formed so as to approach the first and second rotating shafts 27 and 29 as it goes from the rear side.

FIG. 13 is a top view of a structure 220 of a modified example. The left-right direction, the front-rear direction, and the up-down direction of the structure 220 are as shown in FIG. Needless to say, the orientation of arrangement of the structures 220 is not limited to this. As shown in FIG. 13, in the structure 220, in the first and second connecting portions 30[i] and 32[i] (i: 1 to 6), when "i" is 1 to 3, the front side to the rear side The angles θa[i] and θb[i] gradually decrease as the first and second rotation shafts 27 and 29 are approached toward the side and as "i" decreases. are spaced from the first and second rotation shafts 27 and 29 from the front side to the rear side, and are formed such that the angles θa[i] and θb[i] gradually increase as "i" increases. It differs from the structure 20 in that

Next, pre-deformation of the structure 220 and change of the gap (opening area) between two adjacent fin portions 22 will be described. 14 is a perspective view when the structure 220 is in the base shape for use, and FIGS. 15 and 16 are a perspective view and a top view when the fin portion 22 of the structure 220 is elastically deformed from the base shape for use. . Note that in FIGS. 14 to 16, ridge lines are illustrated for ease of viewing.

In the pre-deformation, the structure 220 is deformed from the manufactured shape (the state of FIG. 13) to the used base shape (the state of FIG. 14). Here, the manufactured shape and the used base shape of the structure 220 are the same as the manufactured shape (see FIGS. 1 and 2) and the used base shape (the state of FIGS. 3 and 4) of the structure 20 .

With respect to the structure 220, the first and second support portions 26 and 28 are rotated clockwise and counterclockwise around the first and second rotation shafts 27 and 29 from the shape of the base used, as viewed from the front side of FIG. When moved, the first and second connecting portions 30[1] to 30[6] and 32[1] to 32[6] are bent and deformed into valley folds when viewed from above. In the structure 220, in the first and second connecting portions 30[i], 32[i] (i: 1 to 6), when "i" is 1 to 3, the first and second rotation shafts 27, 29 and the first and second connecting portions 30[i], 32[i] are longer on the front side than on the rear side. long in the back. Therefore, when the first and second connecting portions 30[1] to 30[6] and 32[1] to 32[6] are bent and deformed, the fin portion 22[1] is deformed as shown in FIGS. . . . 22[3] tilt forward, and the fin portions 22[4] to 22[6] tilt rearward. Further, in the structure 220, when "i" is 1 to 3, the angles θa[i] and θb[i] become smaller as "i" becomes smaller. , the angles θa[i] and θb[i] gradually increase as "i" increases. Therefore, when the first and second support portions 26 and 28 are rotated by a certain amount, when "i" is 1 to 3, the fin portion 22[i] becomes smaller as "i" becomes smaller. The extent to which the fin portion 22[i] inclines to the front becomes smaller, and when "i" is 4 to 6, the extent to which the fin portion 22[i] inclines to the rear becomes smaller as the value of "i" increases. As a result, the degree of the gap (opening area) between two adjacent fin portions 22 is maximized at the gap between the fin portions 22[3] and 22[4], and between the fin portions 22[2] and 22[3]. and the gap between the fin portions 22[1] and 22[2] gradually decrease in order, and the gap between the fin portions 22[4] and 22[5] and the fin portions 22[5] and 22[6 ] gradually becomes smaller in the order of the gap between them. That is, in the structure 220, the degree of gap (opening area) between two adjacent fin portions 22 when the first and second support portions 26 and 28 are rotated by a certain amount of rotation is defined as [1] and 22[2], the gap between the fin portions 22[2] and 22[3], and the gap between the fin portions 22[3] and 22[4]. 3] and 22[4], the gap between the fin portions 22[4] and 22[5], and the gap between the fin portions 22[5] and 22[6].

In the structure 220 of the modified example, the first and second connecting portions 30[i], 32[i] (i: 1 to 6) have an angle θa[i] and θb[i] gradually decrease, and when “i” is 4 to 6, the angles θa[i] and θb[i] gradually increase as “i” increases. I assumed. However, it is not limited to this, and may be formed such that the angles θa[i] and θb[i] are the same for at least two consecutive “i”s. For example, when "i" is 1 to 3, the angles θa[i] and θb[i] may be the same, and when "i" is 4 to 6, the angles θa[i] , θb[i] may be formed to be the same.

In the structures 20, 120, and 220 of the examples and modifications, the fin portions 22[1] to 22[6] are formed in a solid trapezoidal plate shape. However, it is not limited to this. FIG. 17 is a perspective view of a structure 320 of a modified example. The left-right direction, the front-rear direction, and the up-down direction of the structure 320 are as shown in FIG. Needless to say, the orientation of arrangement of the structures 320 is not limited to this.

As shown in FIG. 17, structure 320 differs from structure 20A in that fin portions 22[1] to 22[6] are replaced with fin portions 322[1] to 322[6]. Each fin portion 322 has a plurality of beam portions 23 and a plurality of bridging portions 24 . The plurality of beams 23 each extend substantially in the front-rear direction and are arranged side by side in the left-right direction at intervals. Each of the plurality of bridge portions 24 extends in the left-right direction and connects any one of the first connecting portion 30 and the beam portion 23, the two adjacent beam portions 23, and the beam portion 23 and the second connecting portion 32. connected.

Specifically, each of the plurality of beams 23 is located at a third position in the extending direction of the beams 23 and is adjacent to the first connecting portion 30 or the left side (first connecting portion 30 side) via the bridge portion 24 . and is connected to the second connecting portion 32 or the right side (second connecting portion 32 side) via the bridge portion 24 at a fourth position different from the third position in the extending direction of the beam portion 23. is connected to the beam portion 23 next to the . In the example of FIG. 17, the third position is the front end, the rear end, and the center in the extending direction of the beam portion 23, and the front middle between the front end and the center, and the middle between the rear end and the center. The fourth position is the other of these.

In the structural body 320, the fin portions 322[1] to 322[6] are formed in this way, so that the structural body 320 can be made lighter and elastically deformable more easily than the structural body 20. FIG. Instead of the shape shown in FIG. 17 having the beam portion 23 and the bridge portion 24, each fin portion 322 has a plate-like portion combined with the upper surface and/or the lower surface of the shape shown in FIG. It may be formed to have a shape. The thickness of the plate-like portion is preferably, for example, about 1/5, 1/8, or 1/10 or less of the thickness of the structure 420 .

The structures 20, 120, 220, and 320 of the examples and modifications are integrally molded products integrally molded by single-color molding. However, it is not limited to this, and may be an integrally molded product integrally molded by two-color molding, insert molding, or the like. FIG. 18 is a perspective view of a structure 420 of a modified example, and FIG. 19 is an explanatory diagram showing how the structure 420 is two-color molded. The left-right direction, the front-back direction, and the up-down direction of the structure 420 are as shown in FIGS. 18 and 19 . Needless to say, the orientation of the structure 420 is not limited to this.

As can be seen from FIGS. 18 and 19, the structure 420 is an integrally molded product in which a plate-like plate-like portion 421A and a plate-like element group 421B are integrally formed by two-color molding. For example, the plate-like portion 421A is made of resin or the like, and the element group 421B is made of metal or the like.

The plate-like portion 421A has a rectangular shape when viewed from above. The plate-like portion 421A has five holes 421a that penetrate in the vertical direction and extend in the horizontal direction at intervals in the front-rear direction. The element group 421B includes a plurality of fin elements 422a[1] to 422a[6] and first and second support elements 426a and 428a. The plurality of fin elements 422a[1] each have a trapezoidal shape when viewed from above, and are arranged at intervals in the left-right direction. The same is true for each of the plurality of fin elements 422a[2] to 422a[6]. The first and second support elements 426a and 428a have the same shape as the first and second support elements 426 and 428 of the structure 420, respectively, when viewed from above.

In the structure 420 integrally molded by two-color molding, the fin portion 422[1] is formed by a plate-like portion 421A and a plurality of fin portion elements 422a[1]. Similarly, the fin portions 422[2] to 422[6] are each formed by a plate-like portion 421A and a plurality of fin portion elements 422a[2] to 422a[6], respectively. The gaps between the fin portions 22 adjacent in the front-rear direction are formed by the hole portions 421a of the plate-like portion 421A and the gaps between the fin portion elements 422a adjacent in the front-rear direction. The first and second support portions 426 and 428 are respectively formed by the plate-like portion 421A and the first and second support portion elements 426a and 428a. The first connecting portion 430[1] includes the right end surface of the first support element 426a, the left end surface of the leftmost fin element 422a[1] among the plurality of fin element elements 422a[1], and the plate-like portion 421A. and the upper surface of the The same applies to the first connecting portions 430[2] to 430[6]. The second connecting portion 432[1] includes the left end surface of the second support element 428a, the right end surface of the rightmost fin element 422a[1] among the plurality of fin element elements 422a[1], and the plate-like part 421A. and the upper surface of the The same applies to the second connecting portions 432[2] to 432[6].

The structure 420 of the modified example is an integrally molded product integrally molded by two-color molding. However, it may be an integrally molded product integrally molded by insert molding or the like.

In the structure 20 of the embodiment, the first and second rotation shafts 27 and 29 are arranged to extend in the front-rear direction in parallel with each other at intervals in the left-right direction. However, the first and second rotation shafts 27 and 29 do not have to be parallel to each other as long as they are spaced apart from each other. The same is true for structures 120, 220, 320, and 420.

In the structure 20 of the example, the front ends and the rear ends of the fin portions 22[1] to 22[6] extend linearly in the left-right direction. However, the front and rear ends of the fins 22[1] to 22[6] may extend in a curved line in the left-right direction. The same is true for structures 120, 220, 320, and 420.

In the example, the structure 20 was provided with six fin portions 22 . However, the number of fin portions 22 included in the structure 20 is not limited to this, and may be two or more. The same is true for structures 120, 220, 320, and 420.

In the examples, the structure 20 was assumed to be an integrally molded product. However, it may be configured by being molded as a plurality of members and joined together. The same is true for structures 120, 220, 320, and 420.

In the embodiment, the structure 20 is formed in a flat plate shape (see FIGS. 1 and 2) and has a curved use base that is convex upward with respect to a predetermined plane containing the first and second pivot shafts 27 and 29. It was assumed to be used after being deformed into a shape (see FIGS. 3 and 4). However, the structure 20 may also be formed into a use base shape. The same is true for structures 120, 220, 320, and 420.

Correspondence between the main elements of the embodiment and the main elements of the present disclosure described in the column of Means for Solving the Problems will be described. In the embodiment, the fin portions 22[1] to 22[6] correspond to the “plurality of fin portions”, the first support portion 26 corresponds to the “first support portion”, and the second support portion 28 corresponds to the “second 2 support portions”, the first connecting portions 30[1] to 30[6] correspond to “a plurality of first connecting portions”, and the second connecting portions 32[1] to 32[6] correspond to “a plurality of corresponds to the "second connecting portion".

The correspondence relationship between the main elements of the examples and the main elements of the present disclosure described in the column of Means for Solving the Problems is Since it is an example for specifically explaining the mode for carrying out the above, it does not limit the elements of the present disclosure described in the column of means for solving the problem. That is, the interpretation of the present disclosure described in the column of Means for Solving the Problems should be based on the description in that column, and the Examples are based on the book described in the column of Means for Solving the Problems. It is only a specific example of disclosure.

As described above, the mode for carrying out the present disclosure has been described using examples. Of course, it can be implemented.

[Appendix]
[1] A structure according to the present disclosure includes a plurality of fins arranged in a predetermined direction, and a structure capable of changing the degree of gap between two adjacent fins, wherein the plurality of fins are , each of which is band-shaped and elastically deformable, and includes a first supporting portion rotatable about a first rotating shaft; a second supporting portion rotatable about a second rotating shaft; A plurality of first connecting portions each connecting a first supporting portion and one end of the plurality of fin portions and capable of bending deformation, respectively, and a plurality of first connecting portions connecting the second supporting portion and the other ends of the plurality of fin portions and respectively connecting the plurality of first connecting portions. a plurality of bendingly deformable second connecting portions, and the pair of first and second connecting portions with respect to the fin portion are respectively arranged in the order from one side to the other side in the predetermined direction; From the use base shape formed so as to be spaced apart from the second rotation shaft, the plurality of fin portions being curved toward one side with respect to a predetermined plane including the first and second rotation shafts , when the first and second support portions rotate about the first and second rotation shafts in predetermined directions opposite to each other, the plurality of first and second connection portions 2. The support portion and the plurality of fin portions are bent toward each other, and along with this, the plurality of fin portions undergo out-of-plane deformation due to elastic deformation. The gist is that by tilting to the other side, the gap between the two adjacent fin portions increases.

In the structure of the present disclosure, the plurality of fins are curved toward one side with respect to a predetermined plane containing the first and second rotation shafts, and the first and second support portions are arranged at the first and second support portions. 1. When rotating about a second rotating shaft in predetermined directions opposite to each other, the plurality of first and second connecting portions are moved to the side where the first and second supporting portions and the plurality of fin portions approach each other. bending deformation. Since the distance between the pair of first and second connecting portions with respect to the first and second rotating shafts and the fin portion is longer on one side in the predetermined direction than on the other side, the first and second connecting portions of each pair When the connecting portion bends and deforms, each fin portion undergoes out-of-plane deformation due to elastic deformation, and the fin portion tilts to the other side in the predetermined direction. One side and the other side in a predetermined direction may be the same for all fins (for example, the same for all fins on the front and rear sides), or some fins and the remaining fins may be the same. (For example, some fins have front and back sides, and the remaining fins have back and front sides). When the plurality of fin portions inclines to the other side in the predetermined direction in this manner, the gap (opening area) between two adjacent fin portions increases. That is, by rotating the first and second support portions from the use base shape, it is possible to change the degree of the gap (opening area) between the two adjacent fin portions. Moreover, since the first and second support portions and the plurality of fin portions are connected via the plurality of first and second connecting portions, the structure is simpler, and specifically, the number of parts can be reduced. It is possible to change the gap (opening area) between two adjacent fins with a configuration that facilitates omission of complicated assembly. The rotation of the first and second support portions may be performed manually or automatically (driving of the drive source).

[2] In the structure described above (the structure described in [1]), at least two of the first and second connecting portions that are continuous in pairs in the predetermined direction are connected to the first and second rotation shafts. The angle between the extending direction and the extending direction of the first and second connecting portions may be formed so as to be constant.

[3] In the structure described above (the structure described in [1] or [2]), at least three of the first and second connecting portions that are continuous in pairs in the predetermined direction are The angle between the extending direction of the rotating shaft and the extending direction of the first and second connecting portions may be formed so as to gradually change.

[4] In the structure described above (the structure according to any one of [1] to [3]), the pair of first and second connecting portions with respect to the fin portion are each: It may be formed as a concave portion extending away from the first and second rotating shafts from the one side toward the other side in the predetermined direction.

[5] In the structure described above (the structure according to any one of [1] to [3]), the pair of first and second connecting portions with respect to the fin portion are each: It has at least one beam portion and a plurality of bridge portions, and the at least one beam portion is separated from the first and second rotation shafts as it goes from the one side to the other side in the predetermined direction. and is connected to the first and second support portions or the beam portions adjacent to the first and second support portions via the bridge portion at a first position in the extending direction of the beam portion. and is connected to the fin portion or the adjacent beam portion on the fin portion side via the bridge portion at a second position different from the first position in the extending direction of the beam portion. good too.

[6] In the structure described above (the structure according to any one of [1] to [5]), the structure may be an integrally molded product. By doing so, it is possible to more reliably reduce the number of parts and omit complicated assembly. Here, the "integrally molded product" includes not only a member integrally molded by single-color molding, but also a member integrally molded by two-color molding, insert molding, or the like.

[7] In the structure described above (the structure according to any one of [1] to [6]), the structure is formed in a plate shape and deformed into the shape of the use base. may be

[8] In the structure described above (the structure described in any one of [1] to [6]), the structure may be formed in the use base shape.

20, 20A, 20B, 120, 220, 320, 420 structures 22[1] to 22[6], 322[1] to 322[6], 422[1] to 422[6] fins 26, 426 first support portion 27 first rotation shaft 28, 428 second support portion 29 second rotation shaft 30, 30A, 30B, 430 first joint portion 32, 32A, 32B, 432 second joint Department.

Claims (8)

A structure comprising a plurality of fins arranged in a predetermined direction and capable of changing a gap between two adjacent fins,
each of the plurality of fin portions is formed in a strip shape and is elastically deformable,
a first support that is rotatable about a first rotation axis;
a second support that is rotatable about a second rotation axis;
a plurality of first connecting portions each connecting the first support portion and one end of the plurality of fin portions and capable of bending deformation;
a plurality of second connecting portions each connecting the second support portion and the other ends of the plurality of fin portions and capable of bending deformation;
with
The paired first and second connecting portions of the fin portion are formed so as to separate from the first and second rotating shafts as they go from one side to the other side in the predetermined direction. ,
From the use base shape in which the plurality of fin portions are curved toward one side with respect to a predetermined plane including the first and second rotation shafts, the first and second support portions When the plurality of first and second connecting portions are rotated about two rotation axes in predetermined directions opposite to each other, the plurality of first and second connecting portions move toward the side where the first and second support portions and the plurality of fin portions approach each other. along with this, out-of-plane deformation due to elastic deformation occurs in the plurality of fin portions, and the plurality of fin portions inclines to the other side in the predetermined direction, so that the two adjacent fin portions The gap between
Structure. The structure of claim 1, wherein
At least two of the first and second connecting portions that are continuous in a pair in the predetermined direction are defined by the extending direction of the first and second rotation shafts and the extending direction of the first and second connecting portions. It is formed so that the angle is constant,
Structure. The structure of claim 1, wherein
At least three of the first and second connecting portions that are continuous in pairs in the predetermined direction are defined by the extending direction of the first and second rotation shafts and the extending direction of the first and second connecting portions. formed so that the angle changes gradually,
Structure. The structure of claim 1, wherein
The paired first and second connecting portions of the fin portion extend away from the first and second rotation shafts as they go from the one side toward the other side in the predetermined direction. is formed as a recess to
Structure. The structure of claim 1, wherein
each of the first and second connecting portions paired with the fin portion has at least one beam portion and a plurality of bridging portions;
The at least one beam is
extending away from the first and second rotation shafts as it goes from the one side to the other side in the predetermined direction;
At a first position in the extending direction of the beam portion, it is connected to the first and second support portions or the beam portion adjacent to the first and second support portions via the bridge portion, and
connected to the fin portion or the beam portion adjacent to the fin portion via the bridge portion at a second position different from the first position in the extending direction of the beam portion;
Structure. The structure of claim 1, wherein
The structure is an integrally molded product,
Structure. The structure of claim 1, wherein
The structure is formed in a plate shape and deformed into the use base shape,
Structure. The structure of claim 1, wherein
wherein the structure is formed into the use base shape;
Structure.

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