JP6258104B2 - Damper device - Google Patents

Description

  The present invention relates to a damper device used for a cold air passage or the like of a refrigerator.

  For example, a damper device used in a cool air passage of a refrigerator has a structure in which an opening formed in a frame is opened and closed by rotating a baffle by a drive mechanism including a stepping motor and a train wheel (Patent Document) 1). Further, in the damper device described in Patent Document 1, the baffle includes an opening / closing plate and a sheet-like elastic member attached to one side of the opening / closing plate, and the elastic member abuts around the opening. .

JP, 2007-232237, A

  In the case of a structure in which an elastic member is affixed to the opening / closing plate with an adhesive or a double-sided tape like the baffle described in Patent Document 1, it takes a lot of labor to attach the elastic member to the opening / closing plate.

  In view of the above problems, an object of the present invention is to provide a damper device that can easily attach an elastic member to an opening / closing plate when manufacturing a baffle.

  In order to solve the above problems, the present invention includes a frame in which an opening is formed, a baffle for opening and closing the opening, and a drive mechanism for driving the baffle. And a sheet-like elastic member that is held on one side of the opening and closing plate, and the first surface side in the thickness direction contacts the periphery of the opening, and the opening and closing plate includes the elastic member A support surface that supports a second surface side opposite to the first surface, and protrudes toward the first surface side of the elastic member, and overlaps the first surface side so that the elastic member is in contact with the support surface. And a plurality of holding portions held therebetween.

  In the present invention, since the opening / closing plate is provided with the holding portion, when the baffle is manufactured, if the elastic member is inserted between the support surface of the opening / closing plate and the holding portion, the elastic member is held by the opening / closing plate. Therefore, when manufacturing the baffle, the elastic member can be easily attached to the opening / closing plate.

  In the present invention, in the elastic member, a portion sandwiched between the support surface and the holding portion is preferably compressed in the thickness direction. According to this configuration, the elastic member is unlikely to come off from the opening / closing plate.

  In the present invention, in a plan view, the elastic member includes two sides facing each other in a first direction and two sides facing each other in a second direction orthogonal to the first direction, It is preferable that the plurality of holding portions hold the side of two sides facing each other in the first direction among the plurality of sides.

In this case, it is preferable that the two sides opposed to each other in the first direction are short sides, and the two sides opposed to each other in the second direction are long sides. According to this configuration, since the elastic member is held on both sides in the longitudinal direction, the elastic member is unlikely to come off from the opening / closing plate. Further, when the elastic member is inserted between the support surface of the opening / closing plate and the holding portion, the elastic member only needs to be deformed in the longitudinal direction, so that the elastic member can be easily attached to the opening / closing plate.

  In the present invention, a configuration in which the plurality of holding portions overlap with an outer edge of the elastic member can be employed.

  In the present invention, the fluid passing through the opening flows from the side where the baffle is located toward the opening, and the opening / closing plate has no through hole formed at least at a position overlapping the opening. It is preferable that it is a part. According to such a configuration, it is possible to prevent the elastic member from being detached from the opening / closing plate due to fluid pressure.

  In the present invention, a configuration may be adopted in which a through hole is formed in the elastic member, and the plurality of holding portions overlap an opening edge of the through hole.

  In the present invention, it is preferable that a gap is interposed between the holding portion and the side surface of the elastic member in the first direction. According to such a configuration, even if there is an error between the position of the holding portion and the size of the elastic member, when the elastic member is attached to the opening / closing plate, the elastic member is unlikely to be deformed. Further, when the holding portion overlaps the outer edge of the elastic member, the elastic member is unlikely to be wrinkled.

  In the present invention, among the plurality of holding portions, the overlapping length of the two holding portions facing each other in the first direction with respect to the elastic member is between the two holding portions and the side surface of the elastic member. It is preferable that it is larger than the sum of the gap dimensions. According to such a configuration, even if the position of the elastic member is shifted, the elastic member is difficult to come out between the holding portion and the support surface.

  In this invention, it is preferable that the said opening-and-closing plate is provided with the rib extended in the said 1st direction facing two sides which mutually oppose in the said 2nd direction. According to such a configuration, the position of the elastic member in the second direction can be determined by the rib without providing the holding portion at a position facing each other in the second direction.

  In this invention, it is preferable that the said opening-and-closing plate is provided with the rib which opposes two edge parts which mutually oppose in the said 1st direction, and the said holding | maintenance part protrudes from the said rib. According to this configuration, the strength of the holding portion is greater than when the holding portion is formed alone.

  In the present invention, since the holding part is provided on the opening / closing plate, when the baffle is manufactured, if the baffle is inserted between the support surface of the opening / closing plate and the holding part, the elastic member is held by the opening / closing plate. Therefore, when manufacturing the baffle, the elastic member can be easily attached to the opening / closing plate.

It is explanatory drawing of the damper apparatus which concerns on Embodiment 1 of this invention. It is a disassembled perspective view of the baffle etc. which were used for the damper apparatus to which this invention is applied. It is explanatory drawing of the baffle of the damper apparatus which concerns on Embodiment 1 of this invention. It is explanatory drawing of the baffle of the damper apparatus which concerns on Embodiment 2 of this invention. It is explanatory drawing of the baffle of the damper apparatus which concerns on Embodiment 3 of this invention. It is explanatory drawing of the baffle of the damper apparatus which concerns on Embodiment 4 of this invention.

Hereinafter, a refrigerator damper device to which the present invention is applied will be described with reference to the drawings. In the following description, the rotation center axis of the baffle 4 is L, the direction along the rotation center axis L is the X direction (first direction), the direction in which the opening is facing is the Z direction, and the X direction and the Z direction are The orthogonal direction is described as the Y direction (second direction). Also, one side in the X direction is X1, the other side in the X direction is X2, one side in the Y direction is Y1, the other side in the Y direction is Y2, one side in the Z direction is Z1, and The other side will be described as Z2.

[Embodiment 1]
(overall structure)
FIG. 1 is an explanatory diagram of a damper device 1 according to Embodiment 1 of the present invention, and FIGS. 1A and 1B are opposite to the side where the baffle 4 is disposed with respect to the opening 210. It is the perspective view seen from the side, and an exploded perspective view. FIG. 2 is an exploded perspective view of the baffle 4 and the like used in the damper device 1 to which the present invention is applied. 1 and 2, the baffle 4 shows a state in which the opening 210 is closed.

  As shown in FIGS. 1 and 2, the damper device 1 of the present embodiment includes a frame 2 in which a rectangular opening 210 is formed, a case 3 in which the drive mechanism 6 is accommodated, and an opening 210 in the frame 2. The case 3 and the frame 2 are connected by a hook mechanism 11 or the like.

  The frame 2 includes a rectangular end plate portion 21 in which an opening 210 is formed, and a rectangular tube-shaped body portion 22 protruding from the outer edge of the end plate portion 21 to the other side Z2 in the Z direction. The body 22 includes a side plate 221 opposite to the case 3, a connecting plate 25 facing the side plate 221 on the case 3 side, a side plate 222 connecting the side plate 221 and the connecting plate 25, 223. The connecting plate portion 25 protrudes from the side plate portions 221, 222, and 223 to the other side Z <b> 2 in the Z direction, and is connected to the case 3. The side plate portion 221 is formed with a notch 224 that is used for positioning or the like when the damper device 1 is mounted on a refrigerator or the like.

  In the end plate portion 21, a rectangular cylindrical seal plate portion 26 is formed protruding from the edge of the opening 210 toward the side where the baffle 4 is located, and the baffle 4 abuts on the seal plate portion 26. Thus, the opening 210 is closed. Further, a sheet-like heater 9 is attached to a surface of the end plate portion 21 on the side where the baffle 4 is positioned so as to surround the opening 210 (around the seal plate portion 26).

  In this embodiment, the drive mechanism 6 opens and closes the opening 210 by rotating the baffle 4 around the rotation center axis L extending in the Z direction (horizontal direction). Specifically, the driving mechanism 6 rotates the baffle 4 in the closing direction indicated by the arrow A around the rotation center axis L and closes the opening 210 with the baffle 4, and the arrow about the rotation center axis L. The baffle 4 is rotated in the opening direction indicated by B to switch to an open posture in which the opening 210 is opened.

  Such a damper device 1 is disposed inside a duct that forms a cold air passage. Here, the cold air flows through the opening 210 from the side opposite to the side where the baffle 4 is disposed with respect to the opening 210. Alternatively, it may flow through the opening 210 from the side where the baffle 4 is disposed with respect to the opening 210. In this embodiment, the cool air flows from the side where the baffle 4 is disposed with respect to the opening 210.

(Configuration of baffle 4)
The baffle 4 is a sheet-like elastic member made of an opening / closing plate 40 having a flat plate portion 41 larger in size than the opening 210 and foamed polyurethane or the like held on the opening 210 side (one surface) of the opening / closing plate 40. 49, and the first surface 491 side of the elastic member 49 comes into contact with the periphery of the opening 210 (seal plate part 26) to close the opening 210. The opening / closing plate 40 is made of resin. In the opening / closing plate 40, side plate portions 42, 43, 44, 45 are formed around a flat plate portion 41. Ribs 421, 431, 441, and 451 are formed by portions of the side plate portions 42, 43, 44, and 45 that protrude from the flat plate portion 41 to the side opposite to the side on which the elastic member 49 is held.

  The baffle 4 has a shaft portion 46 that protrudes toward one side X1 in the X direction on the side where the side plate portion 44 is located in the flat plate portion 41. The shaft portion 46 is formed coaxially with the rotation center axis L, and the shaft portion 46 is rotatably supported by a hole 250 formed in the connecting plate portion 25 of the frame 2. It is connected. Further, the baffle 4 has a shaft portion 48 that protrudes toward the other side X2 in the X direction on the side where the side plate portion 45 is located in the flat plate portion 41. From the shaft portion 48, the other side X2 in the X direction. A projecting portion 480 that is rotatably supported by the frame 2 protrudes toward (outside).

(Configuration of drive mechanism 6)
The drive mechanism 6 includes a stepping motor 60 disposed inside the case 3 and a train wheel 65 for transmitting the rotation of the stepping motor 60 to the baffle 4 inside the case 3. The case 3 has a rectangular tube-shaped body portion 32 that protrudes from the bottom plate portion toward the frame 2, and the body portion 32 is a side plate that faces the side plate portions 321 and 322 facing each other in the Z direction. Parts 323 and 324. The stepping motor 60 is held by the case 3 between the frame 2 and the case 3. The wheel train 65 includes a first wheel 66 having a large-diameter gear 661 that meshes with a motor pinion 601 and a second wheel (with a large-diameter gear that meshes with a small-diameter gear (not shown) of the first wheel 66) (see FIG. And a drive gear 68 having a large-diameter gear 681 that meshes with the small-diameter gear of the second wheel. Accordingly, in the wheel train 65, the first wheel 66, the second wheel, and the drive gear 68 constitute a reduction wheel train. The train wheel 65 has a sector gear 69 that meshes with the drive gear 68 and is driven by the drive gear 68. The sector gear 69 is a final gear (output gear) located at the final stage of the train wheel 65 and is connected to the baffle 4. Specifically, the output shaft 691 of the sector gear 69 is connected to the shaft portion 46 of the baffle 4.

(Detailed configuration of baffle 4)
FIG. 3 is an explanatory diagram of the baffle 4 of the damper device 1 according to the first embodiment of the present invention. FIGS. 3A, 3B, and 3C show the baffle 4 from the elastic member 49 side. FIG. 4 is a perspective view, an exploded perspective view of the baffle 4, and a cross-sectional view when the baffle 4 is cut at a position A <b> 1-A <b> 1 ′ passing through the holding portion 47.

  As shown in FIG. 3, in the baffle 4, in the opening / closing plate 40, of the side plate portions 42, 43, 44, 45, the side from which the elastic member 49 is held from the flat plate portion 41 (one side Z 1 in the Z direction). Ribs 422, 432, 442, and 452 are formed by the protruding portions. In the opening / closing plate 40, a sheet-like elastic member 49 is held inside a region surrounded by the ribs 422, 432, 442, 452. At that time, in the opening / closing plate 40, the support surface 411 that supports the second surface 492 side of the elastic member 49 is configured by the surface of the flat plate portion 41 on which the elastic member 49 is held.

  Here, the opening / closing plate 40 is a quadrangle in a plan view (when viewed from the Z direction), and has two sides facing each other in the X direction and two sides facing each other in the Y direction. Ribs 422, 432, 442, and 452 are positioned on the four sides. The opening / closing plate 40 is rectangular in plan view (when viewed from the Z direction), and has two long side portions facing each other in the X direction and two short side portions facing each other in the Y direction. . Therefore, of the four ribs 422, 432, 442, 452, the two ribs 432, 452 facing each other in the X direction constitute a short side portion, and the two ribs 422, 432 facing each other in the Y direction have a long side portion. It is composed.

Further, the elastic member 49 has a quadrangular shape in a plan view (when viewed from the Z direction), and includes two side portions 497 and 499 facing each other in the X direction and two side portions 496 and 498 facing each other in the Y direction. Have. The elastic member 49 is rectangular in plan view (when viewed from the Z direction), and the two sides 497 and 499 facing in the X direction form a short side and the two sides facing in the Y direction. The parts 496 and 498 constitute long side parts.

  In configuring the baffle 4 using the opening / closing plate 40 and the elastic member 49 configured as described above, in this embodiment, the opening / closing plate 40 protrudes toward the first surface 491 side of the elastic member 49 from the support surface 411. The plurality of holding portions 47 overlap the first surface 491 side of the elastic member 49 and hold the elastic member 49 between the support surface 411.

  In this embodiment, the holding portion 47 is formed as a holding portion 47a on one side Y1 in the Y direction on the side of the rib 432 extending in the Y direction on one side X1 in the X direction of the opening / closing plate 40, and Y A holding portion 47b is also formed on the other side Y2 in the direction. The holding portion 47 is formed as a holding portion 47c on one side Y1 in the Y direction on the side of the rib 452 extending in the Y direction on the other side X2 of the opening / closing plate 40 in the Y direction. A holding portion 47c is also formed on the other side Y2.

  Here, each of the four holding portions 47 has a protrusion 471 protruding from the ribs 432 and 452 of the opening / closing plate 40 toward the first surface 491 side of the elastic member 49, and the first of the elastic member 49 from the protrusion 471. The bent portion 472 is bent in the direction along the surface 491, and the bent portion 472 overlaps the first surface 491 of the elastic member 49 and sandwiches the elastic member 49 between the support surface 411.

  In the present embodiment, of the four holding portions 47 (holding portions 47a, 47b, 47c, 47d), the holding portions 47a, 47b arranged on one side X1 in the X direction have the tip of the bent portion 472 on the other side in the X direction. The holding portions 47c and 47d disposed on the other side X2 in the X direction are directed to the side X2, and the distal ends of the bent portions 472 are directed to the one side X1 in the X direction. Therefore, the four holding portions 47 overlap the outer edges 49a of the two side portions 497 and 499 (short side portions) facing each other in the X direction among the outer edges 49a of the elastic member 49 and hold the vicinity of the outer edge 49a.

  In this state, in the elastic member 49, the portion sandwiched between the support surface 411 and the bent portion 472 of the holding portion 47 is compressed in the thickness direction, and the first surface 491 contacts the bent portion 472, The second surface 492 contacts the support surface 411. The thickness of the elastic member 49 before being attached to the holding portion 47 is uniform, and the portion of the elastic member 49 sandwiched between the support surface 411 and the bent portion 472 of the holding portion 47 is the support surface 411 and the holding portion 47. It is thinner than the part other than the part sandwiched between the bent part 472. That is, since the distance between the support surface 411 and the bent portion 472 of the holding portion 47 is smaller than the thickness of the elastic member 49 before being attached to the holding portion 47, the elastic member 49 is bent between the support surface 411 and the holding portion 47. By being sandwiched between the portions 472, the thickness of the sandwiched portion is reduced.

  Such a configuration can be realized by optimizing the protruding dimension of the protrusion 471. In this embodiment, since the protrusion 471 protrudes from the ribs 432 and 452, the elastic member 49 is attached to the opening / closing plate 40 with the sum of the height of the ribs 432 and 452 and the height (protrusion dimension) of the protrusion 471. It is set smaller than the previous thickness.

Here, there is a gap g between the protrusion 471 of the holding portion 47 and the side surface 490 of the elastic member 49. Further, of the plurality of holding portions 47, the overlapping length s of the two holding portions 47a and 47c facing each other in the X direction with respect to the elastic member 49 is equal to the protrusion 471 and the elastic member 49 of the two holding portions 47a and 47c. It is larger than the sum of the dimensions of the gap g between the side surface 490 of the first and second side surfaces 490. Also, the overlapping length s of the two holding portions 47b and 47d facing each other in the X direction with respect to the elastic member 49 is the gap between the protrusion 471 of the two holding portions 47b and 47d and the side surface 490 of the elastic member 49. It is larger than the sum of the dimensions of g.

(Main effects of this form)
As described above, in the damper device 1 of this embodiment, the opening / closing plate 40 that holds the sheet-like elastic member 49 in the baffle 4 includes the support surface 411 that supports the second surface 492 side of the elastic member 49, and the elastic member. 49, a plurality of holding portions 47 that protrude toward the first surface 491 side and hold the elastic member 49 between the support surface 411 and the elastic member 49. Therefore, when the baffle 4 is manufactured, if the elastic member 49 is inserted between the support surface 411 of the opening / closing plate 40 and the holding portion 47, the elastic member 49 is held by the opening / closing plate 40. Therefore, when manufacturing the baffle 4, the elastic member 49 can be easily attached to the opening / closing plate 40. Further, a portion of the elastic member 49 sandwiched between the support surface 411 and the holding portion 47 is compressed in the thickness direction, so that the elastic member 49 is unlikely to come off from the opening / closing plate 40.

  The plurality of holding portions 47 support two side portions 497 and 499 (short side portions) that face each other in the first direction X among the side portions 496, 497, 498, and 499 of the elastic member 49. . For this reason, since the plurality of holding portions 47 hold the elastic member 49 on both sides in the longitudinal direction, the elastic member 49 is not easily detached from the opening / closing plate 40. Further, when the elastic member 49 is inserted between the support surface 411 of the opening / closing plate 40 and the holding portion 47, the elastic member 49 may be deformed in the longitudinal direction, so that the elastic member 49 can be easily attached to the opening / closing plate 40. Can do.

  Further, even when the fluid passing through the opening 2 of the frame 2 flows from the side where the baffle 4 is located toward the opening 210, the opening / closing plate 40 has no through hole at least at a position overlapping the opening 210. It is a shielding plate. For this reason, when the baffle 4 closes the opening 210, even if wind pressure (fluid pressure) is applied to the baffle 4, it is possible to prevent the elastic member 49 from being detached from the opening / closing plate 40 by wind pressure.

  Further, since the gap g is interposed between the holding portion 47 and the side surface 490 of the elastic member 49 in the X direction, there is an error between the position of the holding portion 47 and the length of the elastic member 49. Even if it exists, when attaching the elastic member 49 to the opening-and-closing board 40, a wrinkle etc. do not generate | occur | produce in the elastic member 49 easily. Here, if wrinkles or the like are generated in the elastic member 49, a gap may be generated between the elastic member 49 and the seal plate portion 26, and there is a possibility that cold air may leak. However, according to this embodiment, such a problem is unlikely to occur. . The overlapping length s of the two holding portions 47 facing each other in the X direction with respect to the elastic member 49 is the size of the gap g between the protrusion 471 of the two holding portions 47 and the side surface 490 of the elastic member 49. Since it is larger than the sum, even if the position of the elastic member 49 is shifted, the elastic member 49 is difficult to come out between the holding portion 47 and the support surface 411.

  Further, the holding portion 47 is not formed at a position facing the Y direction across the elastic member 49, but ribs 422 and 442 are formed at a position facing each other in the Y direction. For this reason, the position of the elastic member 49 in the Y direction can be determined by the ribs 422 and 442.

  Further, ribs 432 and 452 are formed at positions facing each other with X across the elastic member 49, and the protrusion 471 of the holding portion 47 protrudes from the ribs 432 and 452. For this reason, the strength of the holding portion 47 is greater than when the holding portion 47 is formed alone.

[Embodiment 2]
FIG. 4 is an explanatory diagram of the baffle 4 of the damper device 1 according to the second embodiment of the present invention. FIGS. 4A and 4B are perspective views of the baffle 4 as viewed from the elastic member 49 side, and FIG. FIG. 4 is an exploded perspective view of a baffle 4. Since the basic configuration of this embodiment is the same as that of Embodiment 1, common portions are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIG. 4, also in this embodiment, the opening / closing plate 40 has a plurality of holding portions 47 protruding toward the first surface 491 side of the elastic member 49 from the support surface 411 as in the first embodiment. The plurality of holding portions 47 overlap the first surface 491 side of the elastic member 49 and hold the elastic member 49 between the support surface 411. Also in this embodiment, as in the first embodiment, the holding portion 47 is formed as holding portions 47a and 47b on the side of the rib 432 extending in the Y direction on one side X1 of the opening / closing plate 40 in the X direction. On the other side X2 of the opening / closing plate 40 in the X direction, holding portions 47c and 47d are formed on the side of the rib 452 extending in the Y direction.

  Further, in this embodiment, the holding portion 47 is formed as holding portions 47e and 47f on the side of the rib 442 extending in the X direction on one side Y1 of the opening and closing plate 40 in the Y direction. The holding portions 47g and 47h are formed on the side of the rib 422 extending in the X direction on the other side Y2.

  Even in such a configuration, as in the first embodiment, when the baffle 4 is manufactured, if the elastic member 49 is inserted between the support surface 411 of the opening / closing plate 40 and the holding portion 47, the elastic member 49 becomes the opening / closing plate. 40. Therefore, when the baffle 4 is manufactured, the same effects as those of the first embodiment can be obtained, such as the elastic member 49 can be easily attached to the opening / closing plate 40.

[Embodiment 3]
5A and 5B are explanatory diagrams of the baffle 4 of the damper device 1 according to Embodiment 3 of the present invention. FIGS. 4A and 4B are perspective views of the baffle 4 viewed from the elastic member 49 side. FIG. 4 is an exploded perspective view of a baffle 4. Since the basic configuration of this embodiment is the same as that of Embodiment 1, common portions are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIG. 5, also in the present embodiment, as in the first embodiment, the opening / closing plate 40 has a plurality of holding portions 47 that protrude toward the first surface 491 side of the elastic member 49 from the support surface 411. The plurality of holding portions 47 overlap the first surface 491 side of the elastic member 49 and hold the elastic member 49 between the support surface 411.

  In this embodiment, the holding portion 47 is formed as a holding portion 47i extending in the Y direction on one side X1 in the X direction of the opening / closing plate 40, and in the Y direction on the other side X2 in the X direction of the opening / closing plate 40. It is formed as an extended holding portion 47j.

  The holding portion 47i is a first surface of the elastic member 49 at a position separated from the side portion 497 of the elastic member 49 to the other side X2 in the X direction in each of the two ribs 422 and 442 facing each other in the Y direction on the opening / closing plate 40. Two protrusions 471 projecting toward the 491 side, and a bent part 472 that bends in the direction along the first surface 491 of the elastic member 49 from the two protrusions 471 and connects the two protrusions 471 to each other. ing. Therefore, in the holding portion 47 i, the bent portion 472 overlaps the first surface 491 of the elastic member 49 and sandwiches the elastic member 49 with the support surface 411. In addition, the holding portion 47j of each of the two ribs 422 and 442 facing each other in the Y direction on the opening / closing plate 40 is located at a position spaced from the side portion 499 of the elastic member 49 to one side X1 in the X direction. Two protrusions 471 that protrude toward the first surface 491 side, and a bent portion 472 that bends in the direction along the first surface 491 of the elastic member 49 from the two protrusions 471 and connects the two protrusions 471 together. Have. Therefore, in the holding portion 47j, the bent portion 472 overlaps the first surface 491 of the elastic member 49 and sandwiches the elastic member 49 with the support surface 411. In this way, the elastic member 49 is held by the holding portions 47i and 47j at positions separated in the X direction (long side extending direction).

Even in such a configuration, as in the first embodiment, when the baffle 4 is manufactured, if the elastic member 49 is inserted between the support surface 411 of the opening / closing plate 40 and the holding portion 47, the elastic member 49 becomes the opening / closing plate. 40. Therefore, when the baffle 4 is manufactured, the same effects as those of the first embodiment can be obtained, such as the elastic member 49 can be easily attached to the opening / closing plate 40.

[Embodiment 4]
FIG. 6 is an explanatory diagram of the baffle 4 of the damper device 1 according to the fourth embodiment of the present invention. FIGS. 4 (a), 4 (b), and 4 (c) show the baffle 4 from the elastic member 49 side. FIG. 4 is a perspective view, an exploded perspective view of the baffle 4, and a cross-sectional view when the baffle 4 is cut at a position A 2 -A 2 ′ passing through the holding portion 47. Since the basic configuration of this embodiment is the same as that of Embodiment 1, common portions are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIG. 6, also in this embodiment, the opening / closing plate 40 has a plurality of holding portions 47 protruding toward the first surface 491 side of the elastic member 49 from the support surface 411, as in the first embodiment. The plurality of holding portions 47 overlap the first surface 491 side of the elastic member 49 and hold the elastic member 49 between the support surface 411.

  In this embodiment, the elastic member 49 is formed with a through hole 494 on the inner side of the place where the seal plate portion 26 shown in FIG. 1 abuts (the position indicated by the one-dot chain line in FIGS. 6A and 6B). The holding part 47 overlaps with two opening edges 494a facing each other in the X direction among the opening edges 494a of the through holes 494, and holds the vicinity of the opening edge 494a.

  More specifically, the holding portions 47 s and 47 r are formed on the first surface of the elastic member 49 from the flat plate portion 41 of the opening / closing plate 40 in the vicinity of the opening edge 494 a located on one side X <b> 1 in the X direction among the through holes 494. The projection 471 protrudes toward the 491 side, and the bent portion 472 is bent from the projection 471 along the first surface 491 of the elastic member 49 to one side X1 in the X direction. Further, the holding portions 47t and 47u are directed from the flat plate portion 41 of the opening / closing plate 40 toward the first surface 491 side of the elastic member 49 in the vicinity of the opening edge 494a located on the other side X2 in the X direction, inside the through hole 494. And a bent portion 472 bent from the protrusion 471 along the first surface 491 of the elastic member 49 to the other side X2 in the X direction. In the holding portion 47, the bent portion 472 holds the elastic member 49 between the support surface 411.

  In this state, a portion of the elastic member 49 sandwiched between the support surface 411 and the bent portion 472 of the holding portion 47 is compressed in the thickness direction. In the elastic member 49, the support surface 411 and the holding portion 47 are compressed. It is thinner than the part other than the part sandwiched between the bent part 472.

  Even in such a configuration, as in the first embodiment, when the baffle 4 is manufactured, if the elastic member 49 is inserted between the support surface 411 of the opening / closing plate 40 and the holding portion 47, the elastic member 49 becomes the opening / closing plate. 40. Therefore, when the baffle 4 is manufactured, the same effects as those of the first embodiment can be obtained, such as the elastic member 49 can be easily attached to the opening / closing plate 40.

  Here, there is a gap g between the protrusion 471 and the inner peripheral surface 495 of the through hole 494 of the side surface 490 of the elastic member 49. Therefore, even when there is an error between the position of the holding portion 47 and the dimension of the elastic member 49, when the elastic member 49 is attached to the opening / closing plate 40, the elastic member 49 can be prevented from deforming in the X direction. Further, among the plurality of holding portions 47, the overlapping length s of the two holding portions 47r and 47t facing each other in the X direction with respect to the elastic member 49 is equal to the protrusion 471 and the elastic member 49 of the two holding portions 47r and 47t. Is larger than the sum of the dimensions of the gap g between the inner peripheral surface 495 and the inner peripheral surface 495. In addition, the overlapping length s of the two holding portions 47s and 47u facing each other in the X direction with respect to the elastic member 49 is a clearance between the protrusion 471 of the two holding portions 47s and 47u and the side surface 490 of the elastic member 49. It is larger than the sum of the dimensions of g. Therefore, even if the position of the elastic member 49 is shifted, the elastic member 49 is difficult to come out between the holding portion 47 and the support surface 411.

(Other embodiments)
The above embodiment is an example of a preferred embodiment of the present invention, but is not limited to this, and various modifications can be made without departing from the gist of the present invention. For example, the damper device 1 in the above-described embodiment is for a refrigerator, but is not necessarily limited to the damper device used for the refrigerator.

DESCRIPTION OF SYMBOLS 1 Damper apparatus 2 Frame 26 Sealing plate part 210 Opening part 4 Baffle 6 Drive mechanism 40 Opening and closing plate 41 Flat plate part 47 Holding part 411 Support surface 422, 432, 442, 452 Rib 471 Projection part 472 Bending part 49 Elastic member 49a Outer edge 490 Elasticity Side surface of member 491 First surface of elastic member 492 Second surface of elastic member 494 Through hole 494a Open edge 495 Inner circumferential surface 496 to 499 Side

Claims (11)

A frame in which an opening is formed;
A baffle for opening and closing the opening;
A drive mechanism for driving the baffle;
Have
The baffle includes an opening and closing plate, and a sheet-like elastic member that is held on one side of the opening and closing plate and a first surface side in the thickness direction abuts around the opening,
The opening / closing plate protrudes toward the first surface side of the elastic member and a support surface that supports a second surface side opposite to the first surface of the elastic member, and overlaps the first surface side. And a plurality of holding portions for holding the elastic member between the support surface and the damper device.   The damper device according to claim 1, wherein a portion of the elastic member sandwiched between the support surface and the holding portion is compressed in the thickness direction. In a plan view, the elastic member includes two sides facing each other in a first direction and two sides facing each other in a second direction orthogonal to the first direction,
3. The plurality of holding portions are configured to hold two elastic side portions of the plurality of side portions that face each other in the first direction. Damper device. Two sides facing each other in the first direction are short sides,
The damper device according to claim 3, wherein the two sides facing each other in the second direction are long sides.   The damper device according to claim 3 or 4, wherein the plurality of holding portions overlap with an outer edge of the elastic member. The fluid passing through the opening flows from the side where the baffle is located toward the opening,
The damper device according to claim 5, wherein the opening / closing plate is a shielding plate portion in which a through hole is not formed at least at a position overlapping with the opening. A through hole is formed in the elastic member,
The damper device according to claim 3 or 4, wherein the plurality of holding portions overlap an opening edge of the through hole.   The damper device according to any one of claims 5 to 7, wherein a gap is interposed between the holding portion and a side surface of the elastic member in the first direction.   Of the plurality of holding portions, the overlapping length of the two holding portions facing each other in the first direction with respect to the elastic member is the size of the gap between the two holding portions and the side surface of the elastic member. The damper device according to claim 8, wherein the damper device is greater than the sum.   The said opening-and-closing plate is provided with the rib extended in the said 1st direction so as to oppose the two edge | sides which mutually oppose in the said 2nd direction. The damper device as described. The opening / closing plate includes two sides opposed to each other in the first direction and ribs opposed to two sides opposed to each other in the second direction,
The damper device according to any one of claims 3 to 9, wherein the holding portion protrudes from the rib.

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