JP2007278545A - Shutter device and ventilation device using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shutter device and a ventilation device using the same capable of reducing the inflow of cold air from the outside to the inside of a house, while keeping operability of the shutter device even when the ventilation device is installed at a high position. <P>SOLUTION: In this shutter device and the ventilation device, a movable shutter portion 50 extends downward from a movable portion 51 through an opening portion 4g for an operating portion, formed at a lower part of a cover portion 4, and has the operating portion 52 gripped in rotating and operating the movable portion 51, and an opening portion shielding wall 53 for shielding the opening portion 4g for the operating portion while moving with the operating portion 52. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a shutter device that is installed at a vent and adjusts ventilation between indoors and outdoors of a building and a ventilator using the shutter device.

  2. Description of the Related Art Conventionally, a ventilation device that is installed on a wall that partitions the inside and outside of a building and includes a shutter device for adjusting the ventilation between the inside and outside of the building is known (for example, see Patent Document 1).

  The ventilation device disclosed in Patent Document 1 includes a shutter device that can be manually opened and closed. This shutter device is provided perpendicularly to the ventilation direction and has a cylindrical body having a wall portion formed with a lattice portion extending vertically, and is provided adjacent to the indoor side of the cylindrical wall portion and the cylindrical body. And a slide opening / closing shutter having a lattice portion extending in the same direction as the lattice portion. Then, by sliding the slide opening / closing shutter laterally with respect to the wall portion of the cylindrical body, an open position where the opening portion between the lattices of the sliding opening / closing shutter overlaps the opening portion between the lattices of the cylindrical body, The slide opening / closing shutter can be moved to a closed position where the lattice portion of the slide opening / closing shutter overlaps the opening between the lattices of the cylindrical body. If the slide opening / closing shutter is moved to the open position, air can be taken between the inside and outside through the opening of the cylinder and the opening of the slide opening / closing shutter, while if the slide opening / closing shutter is moved to the closed position, the cylinder The opening is shielded by the lattice portion of the slide opening / closing shutter, so that ventilation is blocked.

A shutter opening / closing knob for sliding the slide opening / closing shutter in the horizontal direction is provided below the slide opening / closing shutter. Further, a panel is provided so as to cover the indoor side of the cylindrical body and the slide opening / closing shutter, and an opening for projecting the shutter opening / closing knob downward is formed at a lower portion of the panel. This opening is formed over the range of movement of the shutter opening / closing knob, and when operating the slide opening / closing shutter, it is possible to hold the shutter opening / closing knob and move the slide opening / closing shutter laterally. As described above, since the shutter opening / closing knob is provided at the lower part of the ventilation device, the shutter device can be easily operated from below even when the ventilation device is installed at a high position.
JP 2005-164130 A

  In the shutter device of the conventional ventilation device disclosed in the above-mentioned Patent Document 1, in order to move the shutter opening / closing knob in the horizontal direction, the opening of the panel is formed over the entire moving range. In any region where this knob is not present, the inside and outside can be ventilated through the opening. Therefore, for example, in the winter season, cold air is likely to flow downward due to the heavy specific gravity of the cold air taken in from outside. Therefore, if the opening of the panel is provided at the lower portion as described above, Cold air is likely to flow indoors. That is, in the conventional ventilation device disclosed in Patent Document 1, the shutter opening / closing knob is provided at the lower portion, so that the shutter device can be easily operated from below even when the ventilation device is installed at a high position. On the other hand, as described above, the opening for protruding the shutter opening / closing knob downward is provided at the lower part of the panel, so that there is a problem that it is easy for cold air to flow into the indoor from the outside. is there.

  The present invention has been made in order to solve the above-described problems, and the object thereof is from the outdoors while maintaining good operability of the shutter device even when the shutter device is installed at a high position. It is an object of the present invention to provide a shutter device capable of reducing the inflow of cold air into the room and a ventilation device using the shutter device.

  In order to achieve the above object, a shutter device according to the present invention includes a first shutter portion that is attached to a vent hole that penetrates a wall between the inside and outside of a building, and includes an open vent portion for taking air between the inside and outside of the building. A second shutter part including a movable part provided adjacent to the indoor side or the outdoor side of the first shutter part and having a shielding part that opens and closes the ventilation part by moving relative to the first shutter part; And a cover portion provided to cover the first shutter portion and the second shutter portion and having a first opening at the bottom. The second shutter portion extends downward from the movable portion through the first opening, and shields the first opening while moving together with the operation portion gripped when moving the movable portion. A first shielding wall.

  In this shutter device, as described above, since the operation portion of the second shutter portion extends downward through the first opening of the cover portion, the operation portion is gripped from below even when installed at a high position. Easy to operate. Thereby, even when the shutter device is installed at a high position, the operability of the shutter device can be kept good. Further, in this shutter device, the second shutter portion has the first shielding wall that shields the first opening portion while moving together with the operation portion, so that cold air is provided at the lower portion of the cover portion by the first shielding wall. It is possible to suppress the downward flow through the formed first opening. For this reason, inflow of the cold air from the outdoors to the indoor can be reduced.

  In the shutter device, it is preferable that the first shielding wall extends on both sides of the operation unit along the moving direction of the operation unit. If comprised in this way, it can comprise in the structure which can shield a 1st opening part, moving a 1st shielding wall with an operation part.

  In the shutter device, it is preferable that the first shutter portion includes a second shielding wall that is provided at a position between the first shielding wall and the ventilation portion and has a shape that does not interfere with the operation portion. If comprised in this way, while being able to provide a 2nd shielding wall without interfering with an operation part, the downward flow of the cold air which flows in through the ventilation part of a 1st shutter part is further suppressed by this 2nd shielding wall. can do.

  In this case, the second shielding wall includes a second opening having a moving area shaped along the moving direction of the operating part, and the operating part extends downward from the movable part through the moving area of the second opening. It is preferable. If comprised in this way, while being able to extend an operation part below so that an operation part and a 2nd shielding wall may not interfere, the structure which can move and operate an operation part can be comprised.

  Further, in this case, the second shutter portion is configured to be detachable from the first shutter portion, and the second opening is connected to the moving region and is attached to and detached from the first shutter portion. The second shutter part moves together with the operation part, and the second opening part is attached and detached when the ventilation part of the first shutter part is opened by the shielding part. It is preferable to have the 3rd shielding wall which shields. If comprised in this way, the structure which can insert / remove an operation part in the movement area | region of a 2nd opening part at the time of the attachment or detachment area | region of a 2nd opening part to the 1st shutter part by the attachment / detachment area | region of a 2nd opening part can be comprised. . Furthermore, since the attachment / detachment region of the second opening can be shielded by the third shielding wall when the ventilation portion of the first shutter portion is in the open state, even if the attachment / detachment region is provided on the second shielding wall. Further, it is possible to prevent the cool air from flowing downward from the vent portion in the open state of the first shutter portion through the attachment / detachment region.

  In the configuration in which the first shutter portion includes the second shielding wall, it is preferable that the operation portion extends downward through the indoor side or the outdoor side of the second shielding wall. If comprised in this way, the structure which can extend an operation part below so that an operation part and a 2nd shielding wall may not interfere can be comprised.

  In the above shutter device, the first shutter portion is provided with a ventilation portion and has a ventilation portion forming portion adjacent to the indoor side or the outdoor side of the movable portion, and vents from the ventilation portion formation portion to the outside of the edge of the movable portion. It is preferable to have a holding portion that extends to the opposite side of the portion forming portion and that holds the movable portion so as to be movable in the moving direction when the vent portion is opened and closed. If comprised in this way, a 1st shutter part can be comprised in the structure which hold | maintains the movable part of a 2nd shutter part so that a movement direction at the time of opening and closing of a ventilation | gas_flowing part is possible.

  In this case, the holding part protrudes from the outer side of the edge of the movable part to the inner side of the movable part at a position opposite to the vent part forming part of the movable part, and on the opposite side of the movable part from the vent part forming part. The movable part is prevented from moving away from the ventilation part forming part by contacting the surface, and the movable part is formed in the vicinity of the edge part and the movable part approaches or separates from the ventilation part formation part. In this case, it is preferable that the holding portion has a concave portion that can pass through, and the position of the concave portion matches the position of the holding portion when the movable portion is outside the moving range when the ventilation portion is opened and closed. If comprised in this way, a movable part is moved to the position outside the movement range at the time of opening and closing of a ventilation part, and the position of a crevice and the position of a holding part are matched, and a holding part can move so that it may pass a crevice. The movable part can be attached to and detached from the space between the ventilation part forming part and the holding part while moving the part closer to or away from the ventilation part forming part. Thus, unlike the case where the movable part or the holding part is forcibly deformed and the movable part is attached to or detached from the space between the holding part and the ventilation part forming part while avoiding the interference between the movable part and the holding part, Since the movable part can be attached to and detached from the space between the ventilation part forming part and the holding part without deforming the holding part, the work of attaching and detaching the movable part to the first shutter part can be easily performed, Damage to the movable part or the holding part due to the deformation of the movable part or the holding part can be suppressed. In addition, since the position of the recess matches the position of the holding part when the movable part is outside the movement range when the ventilation part is opened and closed, the holding part passes through the recess during normal operation of opening and closing the ventilation part. Thus, it is possible to prevent the movable part from being detached from the first shutter part.

  Furthermore, in this case, the first opening of the cover part regulates the movement range of the movable part by regulating the movement range of the operation part, and is outside the movement range of the movable part regulated by the first opening part. When there is a movable part at the position, it is preferable that the position of the concave part matches the position of the holding part. If comprised in this way, at the time of normal use of the ventilation device which covers and uses a cover part on the 1st shutter part and the 2nd shutter part, the movement range of an operation part and a movable part is regulated by the 1st opening part, It is possible to prevent the movable portion from moving to a position where the holding portion passes through the recess. Thereby, at the time of the normal operation | movement which opens and closes a ventilation | gas_flowing part by the shielding part of a movable part, the structure which can suppress that a movable part remove | deviates from a 1st shutter part can be comprised.

  As a specific configuration of the shutter device, the movable portion of the second shutter portion is configured to be rotatable about a substantially horizontal axis, and the shielding portion of the movable portion and the ventilation portion of the first shutter portion are configured as follows. Further, a configuration may be adopted in which the movable part is rotated relative to the first shutter part and the shielding part opens and closes the ventilation part by being arranged around the shaft and operating the operation part.

  In the above shutter device, the first positioning portion that fixes the movable portion in the open position where the shielding portion does not substantially shield the ventilation portion, and the movable portion is fixed in the closed position where the shielding portion substantially completely shields the ventilation portion. It is preferable to further include a second positioning portion. If comprised in this way, the movable part of a 2nd shutter part can be reliably fixed by an open position and a closed position by the 1st positioning part and the 2nd positioning part, respectively. Thereby, it is possible to suppress the occurrence of inconvenience that the opened ventilation part is closed by the shielding part or the ventilation part closed by the shielding part is opened by the unintended movement of the movable part.

  In this case, it is preferable to further include a third positioning portion that fixes the movable portion at a predetermined position between the open position and the closed position. If comprised in this way, since a movable part can be fixed in the predetermined position between an open position and a closed position, and a ventilation part can be made into the state shielded only by predetermined amount by the shielding part, The air flow can be easily set to a predetermined air flow corresponding to this shielding state. Thereby, the ventilation | gas_flowing amount at the time of ventilating between indoors and outdoors through a ventilation | gas_flowing part can be easily set to predetermined ventilation | gas_flowing amount.

  Furthermore, in this case, it is preferable that the third positioning portion is configured to be able to fix the movable portion at a plurality of different positions between the open position and the closed position. If constituted in this way, the movable part can be fixed at a plurality of different positions between the open position and the closed position, and the ventilation part can be in a plurality of states shielded by different amounts by the shielding part, It is possible to adjust the amount of ventilation when ventilating indoors and outdoors through the ventilation part in a stepwise manner.

  Moreover, the ventilation apparatus of this invention is provided with the said shutter apparatus, Comprising: The ventilation between the indoor and outdoor of a building is adjusted. In this ventilation device, even when the ventilation device (shutter device) is installed at a high position, it is possible to reduce the inflow of cold air from the outdoors to the indoors while maintaining good operability of the shutter device.

  As described above, in the shutter device and the ventilation device according to the present invention, even when the shutter device is installed at a high position, the operability of the shutter device is kept good, and the inflow of cold air from the outdoors to the indoor space is reduced. can do.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
FIG. 1 is an exploded perspective view showing a configuration of a ventilation device according to a first embodiment of the present invention. FIG. 2 is a sectional view showing a state in which the ventilation device according to the first embodiment shown in FIG. 3 and 4 are perspective views of the fixed shutter portion 40 and the movable shutter portion 50 of the manual shutter device 2 constituting the ventilation device shown in FIG. 1, respectively. FIG. 5 shows the ventilation device shown in FIG. It is a perspective view of the cover part 4 to comprise. 6-9 is a figure for demonstrating the structure of the manual shutter apparatus 2 which comprises the ventilation apparatus shown in FIG. First, with reference to FIGS. 1-9, the structure of the ventilation apparatus by 1st Embodiment of this invention is demonstrated.

  As shown in FIG. 1, the ventilation device according to the first embodiment includes an automatic shutter device 1, a manual shutter device 2, a filter 3, and a cover portion 4. Among these, the manual shutter device 2 is a shutter device that is an object of the present invention. As shown in FIG. 2, the ventilation device is installed in a ventilation hole 510 that penetrates an outer wall 500 between the inside and outside of a building, and has a function of controlling ventilation between the inside and outside of the building.

  The automatic shutter device 1 is accommodated in a cylindrical portion 31 of a frame 30 (described later) located in the vent hole 510. The automatic shutter device 1 has a function of automatically controlling ventilation according to the temperature. Specifically, the automatic shutter device 1 has two wings 1a and 1b that can rotate around a horizontal axis, and the wing 1b is disposed adjacent to the outdoor side of the wing 1a. ing. Each of the wings 1a and 1b has three wings 11a and 11b that block ventilation, and the three wings 11a and 11b are arranged at equal intervals around the shaft. When the outside air temperature is high, the outdoor wing 1b rotates so that the wing 11a of the wing 1a and the wing 11b of the wing 1b overlap each other, and the space between the wings 1a of the wing 1a. And ventilation between the indoor and outdoor is taken through the space between the wings 1b of the wing 1b. On the other hand, when the outside air temperature is low, the outdoor-side wing 1b rotates so that the wing 11a of the wing 1a and the wing 11b of the wing 1b alternate, and the ventilation between the indoor and outdoor is blocked. It is like that.

  The manual shutter device 2 is provided for manually switching between a state where air is taken between indoors and outdoors and a state where air is blocked. As shown in FIG. 1, the manual shutter device 2 includes a frame 30, a fixed shutter portion 40 (first shutter portion), and a movable shutter portion 50 (second shutter portion). The frame 30 is configured by a cylindrical portion 31 having a cylindrical shape and a substantially square frame portion 32 provided on the indoor side of the cylindrical portion 31, and the cylindrical portion 31 is located in the vent hole 510. As shown in FIG. Further, three attachment portions 33 are provided around the cylindrical portion 31 at predetermined intervals on the indoor side surface of the frame portion 32. The attachment portion 33 is for attaching the fixed shutter portion 40.

  A first positioning portion 34a, a second positioning portion 34b, and a third positioning portion 34c are provided at a position below the cylindrical portion 31 on the indoor side surface of the frame portion 32. These are for fixing the movable shutter portion 50 at a predetermined rotational position, and are constituted by a series of convex portions 34 d arranged in an arc shape centering on the axis of the cylindrical portion 31. As shown in FIGS. 6 to 8, the first positioning portion 34 a is configured by a rightmost convex portion 34 d viewed from the indoor side and a convex portion 34 d adjacent to the left side, and the second positioning portion 34 b is The leftmost convex portion 34d viewed from the indoor side and the convex portion 34d adjacent to the right side thereof are configured. Further, the third positioning portion 34c is configured by a plurality of convex portions 34d positioned between the first positioning portion 34a and the second positioning portion 34b. Then, a projection 52b (see FIG. 9) of the operation unit 52 (to be described later) of the movable shutter unit 50 is movable by being locked between the adjacent projections 34d constituting the first to third positioning units 34a to 34c. The rotational position of the shutter unit 50 is fixed.

  As shown in FIG. 3, the fixed shutter portion 40 includes an outer frame portion 41, an attachment portion 42, a ventilation portion forming portion 43, a shaft portion 44, a guide portion 45, a holding portion 46, and a shielding wall 47 ( Second shielding wall). The outer frame portion 41 is formed in a substantially square shape when viewed from the indoor side. The outer frame portion 41 includes an upper side wall portion 41a positioned on the upper side, a left side wall portion 41b positioned on the left side when viewed from the indoor side, a right side wall portion 41c positioned on the right side when viewed from the indoor side, and a lower side. It is comprised by the lower side wall part 41d located. The upper side wall 41a, the left side wall 41b, and the right side wall 41c are provided with openings 41e for taking air between indoors and outdoors.

  The attachment part 42 is provided in the center part of the upper side wall part 41a of the outer frame part 41, the lower part of the left side wall part 41b, and the lower part of the right side wall part 41c, respectively. The fixed shutter portion 40 is fixed to the frame body 30 by screwing these three attachment portions 42 to the corresponding attachment portions 33 of the frame body 30.

  The ventilation portion forming portion 43 is provided in the central region of the fixed shutter portion 40 and is formed in a circular shape. The ventilation part forming part 43 is provided with a plurality of ventilation parts 43a that are opened in a fan shape for taking ventilation between indoors and outdoors. The shaft portion 44 is provided at a central position of the ventilation portion forming portion 43 so as to extend in the horizontal direction and perpendicular to the ventilation portion forming portion 43, and the plurality of ventilation portions 43 a are provided in the shaft portion 44. Are provided at equal intervals around.

  The guide part 45 is formed of a substantially circular frame provided along the periphery of the circular ventilation part forming part 43. The guide portion 45 is provided to guide the operation of a movable portion 51 (see FIG. 4), which will be described later, of the movable shutter portion 50, and the peripheral edge of the substantially circular movable portion 51 is on the inner surface of the guide portion 45. The movable part 51 rotates along the guide part 45 while abutting.

  The holding portions 46 are small piece-like members provided on the surface on the indoor side of the guide portion 45 so as to protrude inward in the radial direction of the guide portion 45, and three holding portions 46 are provided at predetermined intervals in the circumferential direction of the guide portion 45. It has been. A movable portion 51 (to be described later) of the movable shutter portion 50 is rotatably held between the holding portion 46 and the vent portion forming portion 43. That is, the holding part 46 is extended from the ventilation part forming part 43 together with the guide part 45 so as to pass around the outer peripheral part of the movable part 51 and wrap around to the opposite side of the ventilation part forming part 43 of the movable part 51. The holding part 46 and the guide part 45 are integrated to hold the movable part 51 in a rotatable manner.

  The shielding wall 47 (second shielding wall) is provided at the lower end position of the ventilation portion forming portion 43 and is formed in an arc shape along the periphery of the ventilation portion forming portion 43. The shielding wall 47 is provided to suppress the flow of cool air flowing in from the outside through the automatic shutter device 1, the ventilation portion 43 a of the fixed shutter portion 40 and the ventilation window 51 b described later of the movable shutter portion 50. The shielding wall 47 is provided with a notch 47a (second opening).

  The movable shutter portion 50 is provided adjacent to the indoor side of the fixed shutter portion 40 and is a portion that is rotated relative to the fixed shutter portion 40. The movable shutter unit 50 is configured to be detachable from the indoor side with respect to the fixed shutter unit 40. For example, when the manual shutter device 2 is maintained, the movable shutter unit 50 can be removed from the fixed shutter unit 40 for maintenance. It has become. As shown in FIG. 4, the movable shutter unit 50 includes a movable unit 51, an operation unit 52, an opening shielding wall 53 (first shielding wall), and a notch shielding wall 54 (third shielding wall). have. The movable portion 51 is formed in a substantially circular shape, and a through hole 51a is provided at the center position thereof. As described above, the movable portion 51 is held by the holding portion 46, the guide portion 45, and the ventilation portion forming portion 43 of the fixed shutter portion 40, and the shaft portion of the fixed shutter portion 40 is inserted into the through hole 51a of the movable portion 51. 44 is inserted. Thus, the movable portion 51 is held by the fixed shutter portion 40 so as to be rotatable around the shaft portion 44.

  Around the through-hole 51a of the movable part 51, a plurality of ventilation windows 51b are provided at predetermined intervals for taking air between indoors and outdoors opened in the same fan shape as the ventilation part 43a. The shielded area between the plurality of ventilation windows 51 b is used as a shielding part 51 c that opens and closes the ventilation part 43 a by rotating relative to the fixed shutter part 40. That is, in the movable part 51, the ventilation window 51b and the shielding part 51c are alternately provided around the through hole 51a provided at the center position. Then, by rotating the movable part 51 and the ventilation window 51b and the ventilation part 43a of the fixed shutter part 40 are in communication with each other, it is possible to take air between indoors and outdoors through the ventilation part 43a and the ventilation window 51b. The shielding part 51c shields the ventilation part 43a of the fixed shutter part 40 so that the ventilation between the indoor and the outdoor is blocked.

  Also, in the vicinity of the peripheral portion of the movable portion 51, there are three concave portions 51d having a shape that allows the holding portion 46 of the fixed shutter portion 40 to pass when the movable portion 51 is moved closer to or away from the ventilation portion forming portion 43. Is provided. The recesses 51 d are provided at predetermined intervals along the peripheral edge of the movable part 51. When the movable shutter portion 50 is attached to or detached from the fixed shutter portion 40, the movable portion 51 is rotated to the attachment / detachment position to align the position of the recess 51d with the holding portion 46, and the holding portion 46 is movable so as to pass through the recess 51d. The movable portion 51 can be attached to and detached from the space between the holding portion 46 and the ventilation portion forming portion 43 by moving the portion 51 toward or away from the ventilation portion forming portion 43.

  The operation part 52 extends downward from the lower part of the movable part 51. The operation unit 52 is a portion that is gripped by the operator when the movable unit 51 is rotated. The operation unit 52 extends downward through a notch 47 a (see FIG. 3) of the shielding wall 47 of the fixed shutter unit 40. As a result, the operation unit 52 extends downward without interfering with the shielding wall 47. Then, the movable portion 51 is rotated around the shaft portion 44 by swinging the operation portion 52 left and right.

  As shown in FIG. 3, the cutout portion 47 a of the shielding wall 47 includes a moving region 47 b that linearly extends from the right end of the shielding wall 47 to the left in the vicinity of the connection portion of the shielding wall 47 to the ventilation portion forming portion 43. An attachment / detachment region 47c linearly extending from the right end of the moving region 47b to the indoor edge of the shielding wall 47 is provided. Further, as shown in FIG. 9, the base portion connected to the movable portion 51 of the operation portion 52 is provided with a notch portion mounting portion 52a formed in a thin wall, and this notch portion mounting portion 52a is provided in the notch portion 47a. The moving region 47b is movably mounted to the left and right. That is, the operation unit 52 extends downward through the moving region 47b of the notch 47a in a state where the movable shutter unit 50 is attached to the fixed shutter unit 40. When the operation unit 52 is moved in the left-right direction in order to rotate the movable unit 51, the notch mounting unit 52a moves left and right within the moving region 47b of the notch 47a. Further, when the movable shutter 50 is attached to and detached from the fixed shutter 40, the notch mounting portion 52a of the operation portion 52 is attached to and detached from the moving region 47b through the attaching / detaching region 47c of the notch 47a. Thereby, the notch mounting part 52a of the operation part 52 can be attached to and detached from the moving region 47b of the notch 47a without interfering with the shielding wall 47.

  Further, as shown in FIG. 9, a protrusion 52 b protrudes on the outdoor side of the operation unit 52. When the operating portion 52 is moved to the left and right, the projection 52b is locked by the first to third positioning portions 34a to 34c of the frame 30 as described above, so that positions corresponding to these positioning portions are obtained. The operation unit 52 and the movable unit 51 are fixed to the above. Specifically, when the protrusion 52b is locked to the first positioning portion 34a, the open position where the ventilation portion 43a of the fixed shutter portion 40 is not shielded by the shielding portion 51c of the movable portion 51, in other words, the movable portion 51. The movable part 51 is fixed at a position where the ventilation window 51b and the ventilation part 43a of the fixed shutter part 40 completely overlap. Further, when the protrusion 52b is locked to the second positioning part 34b, the movable part 51 is fixed at a closed position where the shielding part 51c of the movable part 51 completely shields the ventilation part 43a of the fixed shutter part 40. .

  When the protrusion 52b is locked to the third positioning portion 34c, the movable portion 51 is fixed at a predetermined position between the open position and the closed position. As described above, the third positioning portion 34c includes the plurality of convex portions 34d positioned between the first positioning portion 34a and the second positioning portion 34b, and the first positioning portion 34a and the second positioning portion 34c. The protrusion 52b can be locked at a plurality of different positions between the portion 34b. For this reason, it is possible to fix the movable portion 51 at a plurality of different positions between the open position and the closed position by locking the protrusion 52b by the third positioning portion 34c. Depending on the fixed position of the movable part 51, the ventilation part 43a is shielded by different amounts by the shielding part 51c.

  The opening shielding wall 53 is provided adjacent to an upper side of an operation portion opening 4g (first opening), which will be described later, provided at the lower portion of the cover portion 4, and shields the operation portion opening 4g. The opening shielding wall 53 has a function of suppressing cold air flowing from the outside from flowing downward through the operation portion opening 4g. Further, the opening shielding wall 53 is formed integrally with the operation unit 52 at the intermediate portion in the longitudinal direction of the operation unit 52, and moves in the left-right direction together with the operation unit 52 while opening the operation unit opening 4 g of the cover unit 4. Shield. In addition, the opening shielding wall 53 is formed in an arc shape with the through hole 51 a as a center, and extends to the left and right sides of the operation unit 52 along the moving direction of the operation unit 52.

  The cutout shielding wall 54 is provided at the lower end position of the movable portion 51 and is formed in an arc shape along the periphery of the movable portion 51. The cutout shielding wall 54 is configured to come into contact with the upper surface of the shielding wall 47 of the fixed shutter unit 40 and move together with the operation unit 52 and the movable unit 51. When the ventilation portion 43a of the fixed shutter portion 40 is in the fully open state, that is, when the movable shutter portion 50 is in the open position, the notch portion shielding wall 54 is attached / detached region 47c of the notch portion 47a as shown in FIG. And is configured to shield the attachment / detachment region 47c. Thereby, when the ventilation portion 43a of the fixed shutter portion 40 is in the fully opened state, the cutout portion shielding wall 54 prevents the cool air from flowing downward from the ventilation portion 43a through the attachment / detachment region 47c of the notch portion 47a.

  As shown in FIG. 1, the filter 3 is installed on the indoor side of the manual shutter device 2, and is provided to remove dust contained in the air. Moreover, the said cover part 4 is provided in the indoor side most of the ventilation apparatus. The cover unit 4 is provided so as to cover the indoor side of the fixed shutter unit 40, the movable shutter unit 50 and the filter 3. And the cover part 4 is formed in the substantially square shape seeing from the indoor side, and externally fits with respect to the frame part 32 of the said frame 30 so that attachment or detachment is possible.

  The cover 4 includes a substantially square flat plate-like indoor side end wall 4a located on the most indoor side, an upper wall 4b extending from the four end sides of the indoor side end wall 4a to the outdoor side, and a lower part. It is comprised by the wall 4c and the both-sides walls 4d and 4e. The upper wall 4b, the lower wall 4c, and the side walls 4d and 4e are positioned at the upper end, the lower end, and the left end and the right end as viewed from the indoor side, respectively. As shown in FIG. 5, the upper wall 4b and the side walls 4d and 4e are respectively formed with ventilation openings 4f, and ventilation between indoors and outdoors is performed through the ventilation openings 4f.

  The lower wall 4c is provided with an operation part opening 4g (first opening), and the operation part 52 is configured to protrude downward through the operation part opening 4g. The operating portion opening 4g is formed over a range of movement of the operating portion 52 in the left-right direction when the movable portion 51 is moved from the open position to the closed position. The operation portion opening 4 g restricts the movement range of the operation portion 52. Specifically, the operation portion opening 4g moves the movable portion 51 to the closed position while the operation portion 52 contacts the right end of the operation portion opening 4g when the movable portion 51 is moved to the open position. If it does, the operation part 52 will be comprised so that it may contact | abut on the left end of the opening part 4g for operation parts. In other words, the operation portion opening 4g prevents the movable portion 51 from rotating out of the range between the open position and the closed position during normal use in which the cover portion 4 is placed on the manual shutter device 2. The rotational range of the movable part 51 is restricted.

  Next, the operation of the manual shutter device 2 constituting the ventilation device according to the first embodiment will be described with reference to FIGS.

  In the manual shutter device 2 according to the first embodiment, the movable portion 51 rotates about the shaft portion 44 as the operation portion 52 of the movable shutter portion 50 is moved to the left and right as described above. And the operation part 52 contacts the right end of the opening part 4g (refer FIG. 5) for the operation parts of the cover part 4, and the projection part 52b (refer FIG. 9) of the operation part 52 is latched by the 1st positioning part 34a. When the operation unit 52 is moved to the right side to the open position (see FIG. 6), the ventilation portion 43a of the fixed shutter portion 40 and the ventilation window 51b of the movable shutter portion 50 are completely overlapped, and through the ventilation portion 43a and the ventilation window 51b. Ventilation between indoor and outdoor is taken. On the other hand, the operating portion 52 abuts on the left end of the operating portion opening 4g (see FIG. 5) of the cover portion 4, and the protrusion 52b (see FIG. 9) of the operating portion 52 is locked to the second positioning portion 34b. When the operation unit 52 is moved to the left side to the closed position (see FIG. 7), the ventilation portion 43a of the fixed shutter portion 40 is completely shielded by the shielding portion 51c of the movable shutter portion 50, and the ventilation between the indoor and outdoor is blocked. And when moving the movable part 51 and the operation part 52 of the movable shutter part 50 between an open position and a closed position in this way, the operation part of the cover part 4 is moved while the opening part shielding wall 53 moves with the operation part 52. The entire region of the opening 4g for use is always shielded.

  In maintenance of the manual shutter device 2, the movable shutter unit 50 is removed from the fixed shutter unit 40 and maintenance is performed. At this time, the cover portion 4 is removed from the manual shutter device 2, and the movable shutter portion 50 is rotated to an attachment / detachment position (see FIG. 8) located outside the movement range during the opening / closing operation of the ventilation portion 43a. At this attaching / detaching position, the position of the recessed portion 51d of the movable portion 51 and the position of the holding portion 46 of the fixed shutter portion 40 coincide with each other, and the position of the notch mounting portion 52a of the operation portion 52 and the notch 47a of the shielding wall 47 are aligned. The position of the attachment / detachment region 47c matches. In this state, the movable shutter unit 50 is removed from the fixed shutter unit 40 by pulling the movable shutter unit 50 indoors from the fixed shutter unit 40. Further, after the maintenance is completed, the movable shutter portion 50 is attached to the fixed shutter portion 40 and the cover portion 4 is attached to the manual shutter device 2 by the reverse process.

  As described above, in the first embodiment, since the operation unit 52 of the movable shutter unit 50 extends downward through the operation unit opening 4g of the cover unit 4, the ventilation device is installed at a high position. Even in this case, it is easy to operate by grasping the operation unit 52 from below. Thereby, even when the ventilation device is installed at a high position, the operability of the shutter device can be kept good.

  In the first embodiment, the movable shutter portion 50 has the opening shielding wall 53 that shields the operation portion opening 4g while moving together with the operation portion 52. It is possible to suppress the downward flow through the operation portion opening 4g provided in the lower portion of the cover portion 4. For this reason, inflow of the cold air from the outdoors to the indoor can be reduced.

  In the first embodiment, since the fixed shutter portion 40 has the shielding wall 47, the cold air flowing in through the ventilation portion 43 a of the fixed shutter portion 40 and the ventilation window 51 b of the movable shutter portion 50 by the shielding wall 47. The downward flow can be further suppressed.

  In the first embodiment, the shielding wall 47 of the fixed shutter portion 40 has a cutout portion 47 a having a shape along the moving direction of the operation portion 52, and the operation portion 52 passes through the cutout portion 47 a of the shielding wall 47 from the movable portion 51. Since it extends downward, the operation part 52 can be extended downward so that the operation part 52 and the shielding wall 47 do not interfere.

  In the first embodiment, the movable shutter portion 50 has the cutout portion shielding wall 54 that shields the cutout portion 47a while moving together with the operation portion 52. Therefore, by providing the cutout portion 47a on the shielding wall 47, When the shielding effect of the cold air of the shielding wall 47 is lowered, the downward flow of the cold air passing through the notch 47a can be reduced by the notch shielding wall 54.

  In the first embodiment, the movable portion 51 of the movable shutter portion 50 has a shape that allows the holding portion 46 of the fixed shutter portion 40 to pass when the movable portion 51 approaches or separates from the ventilation portion forming portion 43. Since the concave portion 51d is provided, the movable portion 51 or the holding portion 46 is forcibly deformed so as to avoid interference between the movable portion 51 and the holding portion 46, and in the space between the holding portion 46 and the ventilation portion forming portion 43. Unlike the case where the movable part 51 is attached or detached, the movable part 51 is moved closer to or away from the ventilation part forming part 43 so that the holding part 46 passes through the recess 51d without deforming the movable part 51 or the holding part 46. Thus, the movable portion 51 can be attached to and detached from the space between the ventilation portion forming portion 43 and the holding portion 46. Thereby, the work of attaching / detaching the movable part 51 to / from the fixed shutter part 40 can be easily performed, and the damage of the movable part 51 or the holding part 46 due to the deformation of the movable part 51 or the holding part 46 is suppressed. Can do.

  In the first embodiment, the position of the recess 51d and the position of the holding part 46 match when the movable part 51 is outside the moving range when the ventilation part 43a is opened and closed, so that the ventilation part 43a is opened and closed. It is possible to prevent the movable portion 51 from being detached from the fixed shutter portion 40 through the holding portion 46 during the normal operation.

  In the first embodiment, the first positioning portion 34a that fixes the movable portion 51 in the open position where the shielding portion 51c does not shield the ventilation portion 43a on the frame 30, and the shielding portion 51c completely shields the ventilation portion 43a. Since the second positioning portion 34b for fixing the movable portion 51 in the closed position is provided, the movable portion 51 of the movable shutter portion 50 can be reliably fixed at the open position and the closed position. Thereby, it is possible to suppress the occurrence of inconvenience that the opened ventilation portion 43a is closed by the shielding portion 51c or the ventilation portion 43a closed by the shielding portion 51c is opened due to the unintended movement of the movable portion 51. Can do.

  In the first embodiment, the frame 30 is provided with the third positioning portion 34c that fixes the movable portion 51 of the movable shutter portion 50 at a predetermined position between the open position and the closed position. 3 The movable portion 51 is fixed at a predetermined position between the open position and the closed position by the positioning portion 34c, and the ventilation portion 43a of the fixed shutter portion 40 is shielded by a predetermined amount by the shielding portion 51c of the movable shutter portion 50. Can be in a state. Thereby, the ventilation amount of the ventilation portion 43a of the fixed shutter portion 40 can be easily set to a predetermined ventilation amount corresponding to the shielding state. Therefore, the ventilation amount when the ventilation between the indoor and the outside through the ventilation portion 43a is predetermined. The air flow rate can be easily set.

  In the first embodiment, the third positioning portion 34c is configured to be able to fix the movable portion 51 of the movable shutter portion 50 at a plurality of different positions between the open position and the closed position. Are fixed at a plurality of different positions between the open position and the closed position, and the ventilation portion 43a of the fixed shutter portion 40 is set in a plurality of states that are shielded by different amounts by the shielding portion 51c of the movable shutter portion 50, respectively. it can. Thereby, the ventilation | gas_flowing amount at the time of ventilating indoors and outdoors through the ventilation | gas_flowing part 43a of the fixed shutter part 40 can be adjusted in steps.

(Second Embodiment)
10 and 11 are perspective views of the fixed shutter portion 40 and the movable shutter portion 50 of the manual shutter device 2 constituting the ventilation device according to the second embodiment of the present invention, respectively. 12-15 is a figure for demonstrating the structure of the manual shutter apparatus 2 which comprises the ventilation apparatus by 2nd Embodiment of this invention. Next, with reference to FIGS. 10-15, the structure and operation | movement of the ventilation apparatus by 2nd Embodiment of this invention are demonstrated.

  In the second embodiment, unlike the first embodiment, the operation portion 52 of the movable shutter portion 50 of the manual shutter device 2 extends downward through the indoor side of the shielding wall 47 of the fixed shutter portion 40. Specifically, as illustrated in FIG. 11, the operation unit 52 of the movable shutter unit 50 includes an extending portion 52 c that extends from the movable portion 51 to the indoor side. The length of the extended portion 52c extending from the movable portion 51 to the indoor side is substantially the same as the length of the shielding wall 47 (see FIG. 10) of the fixed shutter portion 40 extending from the ventilation portion forming portion 43 to the indoor side. As shown in FIG. 15, the portion 52 is configured to climb over the shielding wall 47 to the indoor side at the extended portion 52 c. Thus, in 2nd Embodiment, since the operation part 52 is extended below through the indoor side of the shielding wall 47, in the said 1st Embodiment for inserting the operation part 52 in the shielding wall 47, it is. Such a notch 47a (see FIG. 3) is not provided, and the movable shutter part 50 is not provided with a notch shielding wall 54 (see FIG. 4) for shielding the notch 47a.

  Moreover, in this 2nd Embodiment, the opening part shielding wall 53 of the movable shutter part 50 is formed so that the predetermined area | region above an indoor side edge part may also be covered. Moreover, in this 2nd Embodiment, it replaces with the attachment part 33 (refer FIG. 1) of the frame 30 by the said 1st Embodiment, and the attachment part 42 of the fixed shutter part 40, and the indoor side of the frame part 32 of the frame 30 A pair of locking portions 60, 60 (see FIG. 12) are provided on the surface of the surface so as to face each other across the formation region of the cylindrical portion 31. Further, the outer surface of the outer frame portion 41 of the fixed shutter portion 40 is not provided with the mounting portion 42 (see FIG. 1) according to the first embodiment, but a pair of locking portions 60 of the frame body 30, A pair of locked portions 70 and 70 (see FIG. 12) are provided at positions corresponding to 60. The fixed shutter portion 40 is detachably fixed to the frame 30 by the pair of locked portions 70 and 70 being locked to the pair of locking portions 60 and 60 of the frame 30.

  The other configuration of the ventilation device according to the second embodiment is the same as the configuration of the ventilation device according to the first embodiment.

  The operation of the manual shutter device 2 of the ventilation device according to the second embodiment is the same as the operation of the manual shutter device 2 according to the first embodiment, and the operation unit 52 is operated left and right during normal use. Thus, the movable portion 51 is rotated between the open position shown in FIG. 12 and the closed position shown in FIG. 13 to open and close the ventilation portion 43a of the fixed shutter portion 40 by the shielding portion 51c of the movable shutter portion 50. Then, during maintenance of the manual shutter device 2, the cover portion 4 (see FIG. 1) is removed from the manual shutter device 2, and the movable portion 51 is rotated and held at an attachment / detachment position (see FIG. 14) outside the normal movement range. The movable shutter portion 50 is attached to and detached from the fixed shutter portion 40 from the indoor side so that the portion 46 passes through the recess 51d.

  As described above, in the second embodiment, since the operation unit 52 extends downward from the movable unit 51 through the indoor side of the shielding wall 47, the operation unit 52 and the shielding wall 47 are operated so as not to interfere with each other. The part 52 can be extended downward.

  The effects of the second embodiment other than those described above are the same as the effects of the first embodiment.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description of the embodiment but by the scope of claims for patent, and all modifications within the meaning and scope equivalent to the scope of claims for patent are included.

  For example, the manual shutter device and the ventilation device according to the present invention may be configured by mutually switching the indoor side and the outdoor side in the above embodiments.

  Further, in each of the above embodiments, the movable portion 51 of the movable shutter portion 50 is rotated relative to the fixed shutter portion 40 so that the ventilation portion 43a of the fixed shutter portion 40 is opened and closed by the shielding portion 51c of the movable shutter portion 50. The manual shutter device 2 configured as described above and the ventilation device using the same have been described as an example. However, the present invention is not limited to this, and the movable shutter unit is slid in the lateral direction relative to the fixed shutter unit to fix the fixed shutter. The present invention can also be applied to a manual shutter device configured to open and close a ventilation portion of a portion with a shielding portion of a movable shutter portion and a ventilation device using the same.

  In the first embodiment, the cutout portion shielding wall 54 is configured to shield the attachment / detachment region 47c of the cutout portion 47a of the shielding wall 47 when the movable shutter portion 50 is in the open position. Not only, but by extending the notch shielding wall 54 in the longitudinal direction, the entire area of the notch 47a including the attaching / detaching area 47c and the moving area 47b is closed and closed by the notch shielding wall 54. You may comprise so that it can always shield also at the time of the movement between positions. If comprised in this way, the shielding effect of the notch part 47a by the notch part shielding wall 54 can be improved more.

It is the disassembled perspective view which showed the structure of the ventilation apparatus by 1st Embodiment of this invention. It is sectional drawing which showed the state which installed the ventilation apparatus by 1st Embodiment shown in FIG. 1 in the vent hole. It is a perspective view of the fixed shutter part of the manual shutter apparatus which comprises the ventilation apparatus shown in FIG. It is a perspective view of the movable shutter part of the manual shutter apparatus which comprises the ventilation apparatus shown in FIG. It is a perspective view of the cover part which comprises the ventilation apparatus shown in FIG. It is the front view which looked at the state in which the movable part of the manual shutter apparatus which comprises the ventilation apparatus shown in FIG. 1 exists in an open position from the indoor side. It is the front view which looked at the state which the movable part of the manual shutter apparatus corresponding to FIG. 6 exists in a closed position from the indoor side. It is the front view which looked at the state which the movable part of the manual shutter apparatus corresponding to FIG. 6 exists in an attachment / detachment position from the indoor side. It is sectional drawing along the IX-IX line of the manual shutter apparatus shown in FIG. It is a perspective view of the fixed shutter part of the manual shutter apparatus which comprises the ventilation apparatus by 2nd Embodiment of this invention. It is a perspective view of the movable shutter part of the manual shutter apparatus which comprises the ventilation apparatus by 2nd Embodiment of this invention. It is the front view which looked at the state in which the movable part of the manual shutter apparatus which comprises the ventilation apparatus by 2nd Embodiment of this invention exists in an open position from the indoor side. It is the front view which looked at the state in which the movable part of the manual shutter apparatus corresponding to FIG. 12 exists in a closed position from the indoor side. It is the front view which looked at the state which has the movable part of the manual shutter apparatus corresponding to FIG. 12 in an attachment / detachment position from the indoor side. It is sectional drawing along the XV-XV line of the manual shutter apparatus shown in FIG.

Explanation of symbols

2 Manual shutter device (shutter device)
4 Cover part 4g Operation part opening part (1st opening part)
34a 1st positioning part 34b 2nd positioning part 34c 3rd positioning part 40 Fixed shutter part (1st shutter part)
43 Ventilation part formation part 43a Ventilation part 44 Shaft part (shaft)
46 Holding part 47 Shielding wall (second shielding wall)
47a Notch (second opening)
50 Movable shutter (second shutter)
51 Movable part 51c Shielding part 51d Recessed part 52 Operation part 53 Opening part shielding wall (first shielding wall)
54 Notch shielding wall (third shielding wall)
500 Outer wall 510 Vent

Claims (14)

A first shutter part, which is attached to a ventilation hole penetrating a wall between the inside and outside of the building, and includes an open ventilation part for taking ventilation between the inside and outside of the building;
A second shutter including a movable part provided adjacent to the indoor side or the outdoor side of the first shutter part and having a shielding part that opens and closes the ventilation part by moving relative to the first shutter part. And
A cover portion provided so as to cover the first shutter portion and the second shutter portion, and having a first opening at a lower portion;
The second shutter portion extends downward from the movable portion through the first opening, and has an operation portion that is gripped when the movable portion is moved, and the first opening while moving together with the operation portion. And a first shielding wall that shields the part.   The shutter device according to claim 1, wherein the first shielding wall extends on both sides of the operation unit along a moving direction of the operation unit.   3. The shutter according to claim 1, wherein the first shutter portion includes a second shielding wall provided at a position between the first shielding wall and the ventilation portion and having a shape that does not interfere with the operation portion. apparatus. The second shielding wall includes a second opening having a moving region having a shape along the moving direction of the operation unit,
The shutter device according to claim 3, wherein the operation unit extends downward from the movable unit through a moving region of the second opening. The second shutter portion is configured to be detachable from the first shutter portion,
The second opening includes an attachment / detachment region that is connected to the moving region and allows the operation unit to pass through when the second shutter unit is attached / detached to / from the first shutter unit.
The second shutter part moves together with the operation part, and a third shielding wall that shields the attachment / detachment region of the second opening part when the ventilation part of the first shutter part is opened by the shielding part. The shutter device according to claim 4, comprising:   The shutter device according to claim 3, wherein the operation unit extends downward through an indoor side or an outdoor side of the second shielding wall.   The first shutter unit is provided with the ventilation part and adjacent to the indoor side or the outdoor side of the movable part, and the first shutter part passes through the outside of the edge of the movable part from the ventilation part formation part. A holding portion that extends to the opposite side of the ventilation portion forming portion and holds the movable portion so as to be movable in the movement direction when the ventilation portion is opened and closed with the ventilation portion forming portion. The shutter device according to claim 1. The holding portion protrudes from the outer side of the edge of the movable portion to the inner side of the movable portion at a position opposite to the ventilation portion forming portion of the movable portion, and the ventilation portion forming portion of the movable portion, Abutting against the surface on the opposite side, the movable part is prevented from separating from the ventilation part forming part,
The movable part is formed in the vicinity of the edge thereof, and has a concave part that allows the holding part to pass when the movable part approaches or separates from the ventilation part forming part,
The shutter device according to claim 7, wherein the position of the concave portion and the position of the holding portion coincide with each other when the movable portion is at a position outside a movement range when the ventilation portion is opened and closed. The first opening of the cover part regulates the movement range of the movable part by regulating the movement range of the operation part,
The shutter device according to claim 8, wherein the position of the concave portion and the position of the holding portion coincide with each other when the movable portion is located at a position outside the moving range of the movable portion regulated by the first opening. The movable portion of the second shutter portion is configured to be rotatable about a substantially horizontal axis,
The shielding part of the movable part and the ventilation part of the first shutter part are arranged around the shaft,
10. The device according to claim 1, wherein by operating the operation unit, the movable unit rotates relative to the first shutter unit, and the shielding unit opens and closes the ventilation unit. Shutter device. A first positioning part for fixing the movable part in an open position where the shielding part does not substantially shield the ventilation part;
The shutter device according to claim 1, further comprising a second positioning portion that fixes the movable portion in a closed position where the shielding portion substantially completely shields the ventilation portion.   The shutter device according to claim 11, further comprising a third positioning portion that fixes the movable portion at a predetermined position between the open position and the closed position.   The shutter device according to claim 12, wherein the third positioning unit is configured to be able to fix the movable unit at a plurality of different positions between the open position and the closed position. A shutter device according to any one of claims 1 to 13, comprising:
A ventilation device that regulates the air flow between the inside and outside of a building.

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