JP6713618B2 - Ventilation register - Google Patents

Description

The present invention relates to a ventilation register installed on the indoor side of a ventilation port formed in a wall of a building or the like.

2. Description of the Related Art Conventionally, as a ventilation register, one in which a filter is incorporated for the purpose of pollen removal, dust prevention, etc. is known (for example, Patent Documents 1 and 2). Since the filter becomes dirty and clogged as it is used, it is necessary to occasionally perform cleaning and replacement with a new filter. Therefore, each of the ventilation registers disclosed in Patent Documents 1 and 2 is configured so that the user can replace the filter.

In the ventilation register described in Patent Document 1, a filter (34) can be detachably attached to the back side of a removable grill (18) which is a front cover on the indoor side. Similarly, in the ventilation register described in Patent Document 2, the filter (7) can be detachably attached to the back side of the removable face portion (50) which is the front cover on the indoor side. However, in these registers, since the member that holds the filter is the front cover, if the filter is to be washed without soiling the hands, it is necessary to wash the entire front cover.

Further, in the ventilation registers disclosed in Patent Documents 1 and 2, since the ventilation passage is opened/closed by pushing or rotating the operating portion on the front surface, the number of parts is large and the mechanism is fine. And it has a problem that it is complicated.

Jitsubo 3059356 JP 2015-218961 JP

The present invention has been made in view of the above problems, and an object of the present invention is to provide a ventilation register having a simple structure, a reduced number of parts, and easy filter cleaning.

In order to solve the above problems and achieve the above object, a first aspect of the present invention is a ventilation register, which includes a mount, a front cover, a slide grating, a filter holder, a knob, Is equipped with. The mount has a tubular body that is inserted into a ventilation hole formed in a wall of a building, and a flange that extends radially outward from an indoor end of the tubular body and is attached to an indoor side wall surface. The front cover is detachably attached to the flange from the indoor side to form an opening row. The sliding grid is slidably attached to the front cover so as to be positioned on the flange side of the opening row, and the degree of overlap with the opening row is changed according to the sliding position, so that Another row of openings for adjusting the width is formed. The filter holder detachably holds the filter, and is attached to and detached from the indoor end of the mount so that the filter blocks the ventilation passage and is located on the outdoor side of the slide lattice. It is installed freely. The knob is connected to the slide grating so as to project indoors from the slide grating, and slides the slide grating manually. The front cover is formed with an opening that allows the knob to move while exposing the knob to the indoor side.

According to this configuration, the user can adjust the width of the ventilation passage by operating the knob from the indoor side. In this configuration, the size of the ventilation passage is adjusted by the degree of overlap of the opening rows formed in the front cover and the sliding grid, so the number of parts is small, the structure is simple, and the operation is simple. Highly reliable. Since the filter is detachably attached to the filter holder that is separate from the front cover, remove the filter holder from the mount separately from the front cover and wash the filter holder without touching the filter. It is possible to wash the filter.

A second aspect of the present invention is the ventilation register according to the first aspect, wherein the filter holder is integrally formed.

According to this structure, since the filter holder is integrally formed, the number of parts for holding the filter is small, and further, disassembling and assembling for replacing the filter is not required.

A third aspect of the present invention is the ventilation register according to the first or second aspect, wherein the mount has an upper end of a cavity in the tubular body at a portion that does not hinder the mounting of the filter holder. It has upper and lower shielding members that respectively shield the lower part and the lower part. Further, the filter holder has a peripheral end supporting portion, a projecting portion, upper and lower supporting plates, and a back surface supporting member. The peripheral edge support portion supports the peripheral edge of the filter and is inserted into the tubular body of the mount. The projecting part projects radially outward from the indoor end of the peripheral end support part and abuts the flange when mounted on the mount. The upper and lower support plates are connected to the indoor side end portion of the peripheral end support portion, are in the projection region of the upper and lower shield members along the central axis of the tubular body, and are located in the filter shop. Each of the inner major surfaces is supported. The back surface support member is connected to the outdoor side of the peripheral end support portion and supports the outdoor side main surface of the filter while ensuring a ventilation passage.

According to this structure, a kind of pocket for accommodating the upper part and the lower part of the filter is formed in the upper part and the lower part of the filter holder, and the filter is held by being housed in this pocket. The filter can be easily replaced by putting the upper part and the lower part of the filter into and out of the pocket from the indoor side of the filter holder. The filter holder can be easily attached to the mount by inserting the peripheral end support portion into the cylindrical body of the mount and bringing the protruding portion into contact with the flange of the mount. The filter holder can be easily removed from the mount by performing the reverse operation. The upper and lower shielding members of the mount function as “water repellent” that prevents water droplets contained in the outside air from entering the room. The upper and lower support plates that the filter holder has for holding the filter do not reduce the width of the ventilation passage because they are in the projection area of the upper and lower shielding members along the central axis of the tubular body.

According to a fourth aspect of the present invention, there is provided a ventilation register according to any one of the first to third aspects, wherein the front cover includes a front member on which the opening row is formed, and a periphery of the front member. To the mount side, and an annular side plate that abuts on the flange of the mount. The annular side plate includes vertical side plates extending in the vertical direction on the left and right of the front member. The flange is a plate that stands up on the left and right sides of the flange, and extends in the vertical direction. When the front cover is attached, the restriction plate controls the left and right positions of the front cover by overlapping the vertical side plate. Have One and the other of the vertical side plate and the restriction plate respectively have an engaging portion and an engaged portion that are releasably engaged with each other, and the engaging portion includes the vertical side plate and the engaged portion. It has a protrusion that protrudes from the one main surface of the regulation plate. The engaged portion has a groove formed on the other main surface facing the one main surface, and the groove forms the protrusion when the front cover is pressed against the flange. As a guide, the slope becomes shallower along the direction of movement of the protrusion, and the step cover is formed deeper than the slope to prevent the protrusion from returning, and the front cover is shifted upward. The front cover is communicated with the first groove portion that extends in the vertical direction while remaining deep so as to guide the protrusion sometimes, and extends so as to be inclined or curved from the vertical direction. A second groove portion that guides the protrusion so that the front cover moves away from the flange when the upper cover is further moved upward.

According to this configuration, the front cover can be attached to the flange by simply pressing the front cover against the flange, and the protrusion is guided to the slope. When the front cover is attached to one end, the protrusion engages with the first groove to prevent the front cover from coming off the flange. Therefore, even if strong wind blows into the cylindrical body of the mount from the outdoors, the front cover cannot be easily removed. On the other hand, the protrusion is guided to the second groove by only manually shifting the front cover upward, so that the front cover can be easily removed from the flange. That is, the front cover can be easily attached and detached and can withstand strong wind. In the present invention, "movement of the protrusion" and "guide the protrusion" means that the protrusion is provided on the flange side and is stationary, and when the groove moves, the movement of the protrusion with respect to the groove, And guiding the protrusion to the groove, and is generally used to mean the movement of the protrusion relative to the groove and the guide of the protrusion.

A fifth aspect of the present invention is the ventilation register according to any one of the first to fourth aspects, wherein the front cover has a press receiving portion that is pressed by the elasticity of the knob. doing. And, one of the pressure receiving portion and the knob has a projection, the other has a recess for receiving the projection, a plurality of the recesses are arranged in the direction of the movement of the knob, It is possible to set the position of the knob to a plurality of positions stepwise.
According to this configuration, it is possible to set the position of the knob stepwise, and thereby to set the width of the ventilation passage stepwise.

A sixth aspect of the present invention is the ventilation register according to any one of the first to fifth aspects, wherein the knob is formed integrally with the slide lattice.
According to this configuration, the manufacturing process of the slide grating and the knob can be simplified.

A seventh aspect of the present invention is the ventilation register according to any one of the first to sixth aspects, wherein the front cover is arranged at a position on the indoor side with respect to the opening row with a gap. And a row of shielding plates arranged to face the opening row and spaced from each other so as to form an opening row communicating with the opening row.

According to this configuration, even when the slide grid is at the position where the ventilation passage is opened, the row of the shields can prevent the wind blown from the outside from the cylindrical body of the mount from directly blowing into the inside of the room. ..

An eighth aspect of the present invention is the ventilation register according to any one of the first to seventh aspects, wherein the front cover has a shape that entirely covers an inner surface of the flange.

According to this configuration, the front cover functions as a hidden cover that covers the fixing member such as the screw for attaching the flange to the indoor side wall surface, so that the design is improved.

As described above, according to the present invention, it is possible to realize a ventilation register having a simple structure, a reduced number of parts, and an easy filter cleaning.

It is the whole ventilation register perspective view by one embodiment of the present invention, (a) is a front perspective view when a ventilation passage is in a closed state, (b) is a front perspective view when a ventilation passage is in an open state. , (C) are rear perspective views. It is a disassembled assembly perspective view of the ventilation register of FIG. 2 is a side sectional view of the ventilation register of FIG. 1. FIG. It is a figure showing the structure of the front cover of the ventilation register of FIG. 1, (a) is a front perspective view, (b) is a rear perspective view, (c) is a partial rear perspective view seen from below, (d). FIG. It is a perspective view of the slide lattice of the ventilation register of FIG. 1, (a) is a front perspective view, (b) is a rear perspective view, (c) is an enlarged partial perspective view seen from the lower back side with a part cut away. is there. It is a perspective view of the mount of the ventilation register of FIG. 1, (a) is a front perspective view, (b) is a rear perspective view. It is a perspective view which shows the structure of the engaged part which enables engagement of the flange of the mount of the ventilation register of FIG. 1, and a front cover, (a) is a figure seen from the front side, (b) is the figure seen from the back side. is there. It is a perspective view of the filter holder of the ventilation register of FIG. 1, (a) is a front perspective view, (b) is a rear perspective view. It is a perspective view of the filter holder and filter of the ventilation register of FIG. 1, (a) is a front perspective view of the filter holder with which the filter was mounted, (b) is the same back perspective view, (c) is a perspective view of the filter. It is a figure.

FIG. 1 is an overall perspective view of a ventilation register according to an embodiment of the present invention, where (a) is a front perspective view when the ventilation passage is in a closed state, and (b) is when the ventilation passage is in an open state. Is a front perspective view, and (c) is a rear perspective view. FIG. 2 is an exploded perspective view of the ventilation register of FIG. 3 is a side sectional view of the ventilation register of FIG. The ventilation register 101 has a mount 1, a front cover 3, a slide lattice 5, a filter holder 7, and a knob 9. First, an outline of the structure of the ventilation register 101 will be described with reference to these drawings, and details of each part will be described later with reference to detailed drawings of each part.

The mount 1 includes a tubular body 15 that is inserted into a ventilation hole 13 formed in a wall 11 of a building, and a flange 16 that extends radially outward from a front end portion of the tubular body 15, that is, an indoor end portion. And have. The flange 16 is attached to the wall surface 17 on the indoor side of the wall 11 so as to cover the opening edge of the ventilation hole 13 by, for example, screwing, so that the mount 1 is fixed to the wall 11. Although not shown, a hood for rain protection is usually attached to the wall surface on the outdoor side of the wall 11 so as to cover the ventilation hole 13 from the outdoor side.

The front cover 3 is detachably attached to the flange 16 so as to cover the entire front surface of the flange 16, that is, the entire indoor surface. Therefore, from the indoor side, only the front cover 3 of the ventilation register 101 is mainly visible, and the outer peripheral surface of the flange 16 is slightly visible. Since the fixing member such as a screw for fixing the flange 16 to the wall 11 is hidden by the front cover 3, the aesthetics of the room is not impaired.

The front cover 3 is provided with slit-shaped opening rows 19. The opening row 19 is a row of vertically long slits arranged in the horizontal direction. A slide grating 5 is detachably attached to the front cover 3 and slidably attached so that it can be translated in the horizontal direction. The slide grid 5 is attached to the back side of the opening row 19. A slit-shaped opening row 21 is formed in the slide grating 5. Like the opening row 19, the opening row 21 is vertically long and arranged in the horizontal direction. The sliding grid 5 changes the degree of overlap between the opening row 19 and the opening row 21 according to the sliding position, and thereby adjusts the width of the ventilation passage.

A knob 9 is integrally connected to the lower portion of the front side of the slide grid 5 so as to be slidable by a user's manual operation. An opening 25 for exposing the knob 9 to the front side is formed in the lower portion of the front cover 3. The opening 25 is formed so as to extend in the horizontal direction so that the knob 9 can be moved in the horizontal direction. 1A shows a state in which the knob 9 is at the left end of the movable range and the ventilation passage is closed, and FIG. 1B shows that the knob 9 is at the right end of the movable range and the ventilation passage is in the closed position. Is open. In FIG. 1B, the structure on the back side can be seen through the open ventilation passage. The ventilation passage becomes wider as the knob 9 is closer to the right end. As will be described later, the position of the knob 9 can be stably set to some predetermined positions in stages.

A filter holder 7 is detachably attached to the front end of the mount 1. The filter holder 7 is integrally formed and holds the filter 27 detachably. The filter holder 7 is mounted so as to be located on the back side of the slide grid 5, that is, on the outdoor side, and when mounted, the ventilation passage is blocked by the filter 27. That is, the air passing through the ventilation hole 13 passes through the filter 27. The filter 27 is made of non-woven fabric, for example, and blocks the passage of dust, pollen, and the like.

As shown in FIG. 3, the slide grating 5 and the filter holder 7 are sandwiched between the front cover 3 and the mount 1 with almost no gap. Therefore, when a strong wind blows into the ventilation hole 13, generation of rattling noise is suppressed. The mount 1, front cover 3, slide grid 5, filter holder 7, and knob 9 can all be easily formed by resin molding. In particular, the slide grating 5 and the knob 9 can be formed as a united body by being integrally molded.

Next, details of each unit will be described. 4A and 4B are views showing the structure of the front cover 3, where FIG. 4A is a front perspective view, FIG. 4B is a rear perspective view, FIG. 4C is a partial rear perspective view seen from below, and FIG. It is a plane sectional view. The front cover 3 includes a front member 29 having a rectangular shape when viewed from the front, and a ring-shaped and plate-shaped side plate 31 that stands up from the periphery of the front member 29 to the back side. That is, the front cover 3 is in the shape of a box having a shallow back and an open rear surface. The front member 29 preferably has a double lattice structure. That is, the slit-shaped opening row 19 is formed on the back side, and another opening row 33 is formed on the front side with a gap 32. The opening row 19 and the opening row 33 are displaced from each other so as not to face each other. In other words, the row of the shielding plates 35 forming the opening row 33 is arranged so as to face the opening row 19 at a position where the gap 32 is separated from the opening row 19. This can also be expressed as that the row of the shielding plates 37 forming the opening row 19 is arranged so as to face the opening row 33 at a position separated from the opening row 33 by the gap 32.

In this way, since the shielding plates 35 and 37 face the opening rows 19 and 33, respectively, it is possible to prevent the air blown into the ventilation holes 13 from the outside from directly blowing into the inside. Further, there is an advantage that it is possible to prevent the back side of the front cover 3 from being seen through from the front of the room. Since there is a gap 32 between the opening rows 19 and 33, air can flow through both opening rows 19, 33. Preferably, as illustrated in FIG. 4, a rib-shaped projection 39 extending in the vertical direction is formed in the center of the front surface of the shielding plate 37 in order to regulate the flow of air. The rib-shaped projections 39 serve to promote that the air that has passed through the opening row 19 flows into the nearest opening row 33. At the same time, the rib-shaped projections 39 also serve to impart rigidity to the shielding plate 37 so that the shielding plate 37 does not interfere with the sliding slide grating 5 due to the bending of the shielding plate 37.

A horizontally elongated opening 25 for slidably exposing the knob 9 is formed at the lower end of the front member 29. A protrusion 41 is formed on the inner surface of the lower plate 40, which is the bottom of the side plate 31, at a portion obliquely facing the opening 25. The lower plate 40 on which the protrusion 41 is formed corresponds to a specific example of the pressure receiving portion of the present invention. The protrusion 41 is provided to stably set the position of the knob 9 to a plurality of positions. At the same time, the protrusion 41 also plays a role of holding the lower end portion of the slide grating 5 slidably and detachably.

As illustrated in FIG. 4C, another protrusion 44 is formed on the inner surface of the upper plate 42, which is the top of the side plate 31. The protrusion 44 is provided to hold the upper end portion of the slide grating 5 slidably and detachably. The manner in which the projections 41 and 44 hold the slide grating 5 is shown in the cross-sectional view of FIG. When the slide grid 5 is mounted from the back surface side of the front cover 3, the projection 44 is inclined on the back surface side so that the slide grid 5 can be welcomed by receiving the pressure from the upper end portion of the slide grid 5 and escaping. ing. The upper plate 42 is elastically deformable to the extent that the protrusion 44 is released. Further, the projection 44 is upright on the front side so as to lock the upper end portion of the mounted slide grating 5.

A locking groove 48 for locking the front cover 3 to the mount 1 by engaging with the flange 16 of the mount 1 is formed on the outer surface of the left and right side plates 46 that form the left and right side plates of the side plate 31. There is. The locking groove 48 corresponds to a specific example of the engaged portion of the present invention.

5A and 5B are perspective views of the slide grid 5, FIG. 5A is a front perspective view, FIG. 5B is a rear perspective view, and FIG. .. As illustrated, the slide grid 5 is formed with an opening row 21. A knob 9 is integrally connected to the lower part of the slide grid 5. The structure of the knob 9 is shown enlarged in FIG. That is, the knob 9 projects from the vicinity of the lower end of the slide grating 5 toward the front in a substantially oblong rectangular tube shape, and the bottom plate portion 43 is formed with a notch 45 extending from the back side to the front side at both ends thereof. There is. Therefore, the bottom plate portion 43 can be elastically bent and deformed. On the lower surface (upper surface in FIG. 5C) of the bottom plate portion 43, there is formed a protruding portion 49 forming a slope 47 that inclines downward (upward in FIG. 5C) as it goes from the front side to the back side. The rear of the slope 47 is retracted upward (downward in FIG. 5C) with a step. A plurality of recesses 53 are formed in the retreat portion 51 that retreats from the slope 47 in the lateral direction, that is, along the sliding direction of the slide grating 5. In the illustrated example, the concave portions 53 are formed so as to form the valleys of the projection array having an arc-shaped cross section.

The protrusion 41 formed on the lower plate 40 of the front cover 3 in order to slidably hold the lower end portion of the slide grid 5 has a semi-cylindrical shape (a semi-cylindrical shape) as shown in the figure. When the slide grid 5 is attached to the front cover 3, the protrusion 41 abuts the slope 47 of the bottom plate portion 43 of the knob 9. Since the bottom plate portion 43 is elastically deformable, when the slope 47 is pressed by the protrusion 41, the bottom plate portion 43 is curved upward (downward in FIG. 5C) so as to accept the protrusion 41. When the protrusion 41 passes through the slope 47, the curved bottom plate portion 43 returns to its original shape, and the protrusion 41 enters the retracted portion 51. Since the retreat portion 51 has a step, the projection 41 cannot be returned from the retreat portion 51 without bending the bottom plate portion 43 by a manual operation or the like.

Since the protrusions 44 provided on the upper side plate 42 of the front cover 3 and the bottom plate portion 43 of the knob 9 of the slide grid 5 have the above-described shape, the slide grid 5 faces from the rear side of the front cover 3 to the front side. It can be easily attached to the front cover 3 by pushing it lightly to the side. When mounted, the sliding grid 5 is slidably held by the front cover 3 by abutting the shield plate 37 on the front side and locking the projections 41, 44 on the back side. Since the retreat part 51 into which the protrusion 41 is fitted has a plurality of recesses 53 arranged in the sliding direction, when the protrusion 44 is in any of the plurality of recesses 53, the sliding position of the slide grid 5 is stable. To do. Therefore, the position of the knob 9 can be set stepwise to a plurality of fixed positions, and thus the width of the ventilation passage can be set to a predetermined plurality of steps. In order to remove the mounted slide grating 5 from the front cover 3, first, the bottom plate portion 43 of the knob 9 is curved manually and the engagement between the protrusion 41 and the retreat portion 51 is released. After that, when the lower end of the slide grid 5 is pulled rearward so as to be separated from the front cover 3, the engagement between the upper end of the slide grid 5 and the protrusion 44 is released, and the slide grid 5 is removed from the front cover 3. You can take it out. In this way, the slide grid 5 can be easily attached to and removed from the front cover 3. It is also possible to form the protrusion 41 on the bottom plate portion 43 of the knob 9 and form the slope 47, the receding portion 51 and the recess 53 on the lower plate 40 of the front cover 3.

FIG. 6 is a perspective view of the mount 1, where (a) is a front perspective view and (b) is a rear perspective view. The flange 16 of the mount 1 is connected to the front end portion of the tubular body 15 and has a rectangular plate-shaped flange main body 54 that projects outward in the radial direction and a plate-like shape standing upright from the left and right end portions of the flange main body 54 in the front direction. It has a pair of regulation plates 55. The flange main body 54 and the regulation plate 55 can be integrally formed, for example, by resin integral molding.

Holes 56 are formed at the four corners of the flange main body 54, through which screws for fixing the mount 1 to the indoor wall surface 17 of the wall 11 (see FIG. 3) are inserted. The regulation plate 55 plays a role of regulating the left and right positions of the front cover 3 by overlapping the left and right side plates 46 of the front cover 3 mounted on the mount 1. Locking protrusions 57 that lock the front cover 3 to the mount 1 by engaging with the locking grooves 48 of the front cover 3 are formed on the inner surfaces of the pair of left and right regulating plates 55. The locking protrusion 57 corresponds to a specific example of the engaging portion of the present invention.

7A and 7B are perspective views showing the structure of the locking groove 48 formed on the left and right side plates 46 of the front cover 3 and with which the locking projections 57 are engaged. FIG. 7A is a front side view, and FIG. It is a figure. 7(b) is somewhat enlarged from FIG. 7(a). The locking groove 48 is formed with an inclined surface 59 for guiding the locking projection 57 formed on the flange 16 when the front cover 3 is pressed against the flange 16 from the front side so as to be mounted on the mount 1. The slope 59 is inclined so that it becomes shallower as it goes from the back surface to the front surface. On the front side of the slope 59, a vertical groove portion 61 (first groove portion) that is deeper than the slope 59 with a step and extends in the vertical direction is formed. An inclined groove portion 63 (second groove portion) that extends obliquely downward and rearward is communicated with the lower end of the vertical groove portion 61. The inclined groove portion 63 extends to the rear end of the left and right side plates 46. The inclined groove portion 63 may have a curved shape such as an arc shape instead of the linear shape. In the example of FIG. 7, the inclined groove portion 63 is formed so as to become shallower toward the rear end portions of the left and right side plates 46, but the depth may be the same as that of the vertical groove portion 61 throughout, for example.

As illustrated in FIG. 7, the locking projection 57 formed on the regulation plate 55 has, as an example, a front surface inclined or curved so that the locking projection 57 can easily slide on the slope 59. On the other hand, the rear surface of the locking projection 57 stands upright from the main surface of the regulation plate 55 so as to be locked by the step 62 between the slope 59 and the vertical groove 61. To mount the front cover 3 on the mount 1, it is sufficient to press the front cover 3 from the front toward the mount 1. At this time, the locking projection 57 abuts the slope 59 and is guided by the slope 59, whereby the left and right side plates 46 and the regulation plate 55 facing each other elastically deform so as to be spaced apart from each other. After that, when the locking projection 57 gets over the slope 59, the left and right side plates 46 and the regulation plate 55 return to the original shape from the state where they are opened, and the locking projection 57 enters the vertical groove portion 61. As a result, the locking projection 57 is engaged with the step 62, and the front cover 3 is locked to the mount 1. Therefore, even if a strong wind blows into the ventilation hole 13 from outside, the front cover 3 cannot be easily removed from the mount 1.

To remove the mounted front cover 3 from the mount 1, it is sufficient to push the front cover 3 upward. At this time, the locking projection 57 is guided downward by the vertical groove portion 61, and then is guided obliquely by the inclined groove portion 63 so as to be directed downward and rearward. Along with this, the front cover 3 that is pushed up is pushed forward and disengaged from the mount 1. The locking projection 57 formed on the mount 1 is stationary, and it is the locking groove 48 formed in the front cover 3 that moves. As the movement of the stop projection 57, a change in the positional relationship between the two is described.

In this way, the front cover 3 can be easily attached to and detached from the mount 1, and it can withstand strong winds and maintain the attached state. In order to make the user understand at a glance how to remove the front cover 3, the front cover 3 is engraved with a display 65 of the word "remove" together with an upward arrow (see FIG. 4). Note that, contrary to the configuration of FIG. 7, the locking projections 57 may be formed on the left and right side plates 46 of the front cover 3 and the locking grooves 48 may be formed on the regulation plate 55 of the mount 1. At this time, the engagement groove 48 is reversed in the form along the vertical direction (that is, the vertical direction) and also in the form along the front and rear (that is, the front side and the back side) from the form illustrated in FIG. 7. Will be things.

Returning to FIG. 6, the mount 1 has an upper shielding member 67 and a lower shielding member 69 that respectively shield an upper end portion and a lower end portion that are a part of the cavity 66 in the tubular body 15. Each of the upper shielding member 67 and the lower shielding member 69 is an upright plate shape, is connected to the upper and lower portions of the inner wall surface near the front end of the tubular body 15, and is formed in a half moon shape so as to extend left and right. Has been done. The upper shielding member 67 and the lower shielding member 69 formed in this manner change the air flow when air containing raindrops blows into the cavity 66 from the outside, and prevents water from entering the indoors. "Return". Although the raindrops that are prevented from entering collect on the lower surface of the tubular body 15, the lower shield member 69 also functions to prevent the rainwater that has accumulated from entering the indoor space. When the upper shielding member 67 and the lower shielding member 69 perform the function as “water repelling”, the ratio of the opening area of the tubular body 15 to the lower area is lower than that of the upper shielding member 67 as illustrated in FIG. It is desirable to make the shielding member 69 larger.

An annular recess 71 for receiving the filter holder 7 is formed on the front surface of the flange body 54 along the inner peripheral edge. Further, recesses 73 for inserting fingers are formed in the left and right portions of the annular recess 71 so that the filter holding body 7 received in the annular recess 71 can be taken out. In addition, a protrusion 75 that restricts the rotational posture of the filter holder 7 is formed at the top of the inner wall surface near the end on the front side of the tubular body 15.

8A and 8B are perspective views of the filter holder 7, where FIG. 8A is a front perspective view and FIG. 8B is a rear perspective view. 9A and 9B are perspective views of the filter holder 7 and the filter, where FIG. 9A is a front perspective view of the filter holder 7 having a filter attached, FIG. 9B is a rear perspective view of the same, and FIG. FIG. The filter holder 7 has a peripheral end support portion 77, a projecting portion 79, an upper support plate 81, a lower support plate 83, and a back surface support member 85. These members are formed by resin integral molding, for example. They are connected together. The peripheral end support portion 77 is a member that supports the peripheral end surface of the disk-shaped filter 27, and is inserted into the tubular body 15 when the filter holder 7 is mounted on the mount 1. The peripheral end support portion 77 has a shallow tubular shape. A concave portion 87 that restricts the rotational posture of the filter holding body 7 is formed on the outer peripheral surface apex of the peripheral end support portion 77 by engaging with the protrusion 75 formed on the inner wall surface apex of the tubular body 15 of the mount 1. Has been done.

The projecting portion 79 projects radially outward from the front end of the peripheral end support portion 77. The overhang 79 is an annular plate-like body that is housed in the annular recess 71 of the flange body 54. The upper support plate 81 and the lower support plate 83 are plate-shaped members that are connected to the front end of the peripheral end support 77 and support the upper and lower front parts of the filter 27. The upper support plate 81 and the lower support plate 83 have their front main surfaces on the same plane as the overhanging portion 79 (that is, they are flush with each other). The upper support plate 81 and the lower support plate 83 are placed within the projection area of the upper and lower shield members 67 and 69 along the central axis of the tubular body 15 when the filter holder 7 is mounted on the mount 1. Is formed on. Therefore, the filter holder 7 does not reduce the width of the ventilation passage.

The back surface support member 85 is connected to the end portion on the back surface side of the peripheral end support portion 77 and supports the back surface of the filter 27. In the example of FIGS. 8 and 9, the back surface support member 85 is a frame body that forms some large vent holes. Even when the filter 27 is not attached, the back surface support member 85 may cover the back surface of the peripheral edge support portion 77 in a net shape so as to prevent intrusion of relatively large harmful substances such as mosquitoes and insects.

In this way, the filter holder 7 is formed with a kind of pocket for accommodating the upper part and the lower part of the filter 27. The filter 27 is held by the filter holder 7 by being housed in this pocket. The filter 27 can be easily put in and taken out from the front side of the filter holder 7. The filter holding body 7 holding the filter 27 is inserted into the tubular body 15 from the front side after aligning the rotational positions so that the concave portion 87 engages with the protrusion 75, and the protruding portion 79 has the annular concave portion 71. It is mounted on the mount 1 by being housed in the mount 1. The finger can be inserted into the recess 73 to grasp the projecting portion 79 of the filter holder 7, and the filter holder 7 can be removed from the mount 1 by directly pulling it out to the front side.

In order to clean the filter 27 that has become dirty due to long-term use, the front cover 3 is removed from the mount 1, and only the filter holder 7 is picked without touching the filter 27, and the filter holder 7 and the filter holder 7 are taken out from the mount 1. be able to. By cleaning the filter holder 7 together, the filter 27 can be cleaned without soiling the hands. When the dirty filter 27 is replaced with a new one, it can be replaced by a simple manual operation. Since all parts of the filter holder 7 are integrally connected, it is not necessary to disassemble and assemble the filter holder 7 in order to replace the filter 27.

1 mount, 3 front cover, 5 slide lattice, 7 filter holder, 9 pick, 11 wall, 13 ventilation hole, 15 tubular body, 16 flange, 17 wall surface, 19 opening row, 21 opening row, 25 opening section, 27 opening section, 27 Filter, 29 front member, 31 side plate, 32 gap, 33 opening row, 35 shielding plate, 37 shielding plate, 39 rib-like protrusion, 40 lower plate, 41 protrusion, 42 upper plate, 43 bottom plate portion, 44 protrusion, 45 cutout, 46 Left Right Plate, 47 Slope, 48 Locking Groove, 49 Projection, 51 Retraction, 53 Recess, 54 Flange Body, 55 Restriction Plate, 56 Hole, 57 Locking Protrusion, 59 Slope, 61 Vertical Groove (1st Groove) , 62 stepped portion, 63 inclined groove portion (second groove portion), 65 display, 66 cavity, 67 upper shielding member, 69 lower shielding member, 71 recessed portion, 73 recessed portion, 75 protrusion, 77 peripheral end support portion, 79 overhanging portion, 81 upper support plate, 83 lower support plate, 85 back support member, 87 recess, 101 ventilation register.

Claims (8)

A cylindrical body that is inserted into a ventilation hole formed in the wall of the building, and a mount that has a flange that extends radially outward from the indoor side end of this cylindrical body and is attached to the indoor side wall surface,
A front cover that is detachably attached to the flange from the indoor side and has an opening row formed,
It is slidably attached to the front cover so as to be located on the flange side of the opening row, and the width of the ventilation passage is adjusted by changing the degree of overlap with the opening row according to the sliding position. And a slide grating in which another opening row is formed,
A filter is detachably held, and the filter is detachably attached to the indoor end of the mount from the indoor side so that the filter blocks the ventilation passage and is located on the outdoor side of the slide lattice. comprising a filter holder, a,
The mount has upper and lower shielding members that respectively shield an upper end portion and a lower end portion of the cavity in the tubular body in a portion that does not hinder the mounting of the filter holder,
The filter holder is
A peripheral end supporting portion that supports the peripheral end of the filter and is inserted into the cylindrical body of the mount,
A projecting portion that projects radially outward from the indoor side end portion of the peripheral end support portion and abuts on the flange when mounted on the mount,
It is connected to the indoor side end of the peripheral edge support part and supports the indoor main surface of the filter in the projection region of the upper and lower shielding members along the central axis of the tubular body. Upper and lower support plates,
A back surface support member that is connected to the outdoor side of the peripheral edge support portion and supports the outdoor side main surface of the filter while ensuring a ventilation passage,
The having, ventilation register. A cylindrical body that is inserted into a ventilation hole formed in the wall of the building, and a mount that has a flange that extends radially outward from the indoor side end of this cylindrical body and is attached to the indoor side wall surface,
A front cover that is detachably attached to the flange from the indoor side and has an opening row formed,
It is slidably attached to the front cover so as to be located on the flange side of the opening row, and the width of the ventilation passage is adjusted by changing the degree of overlap with the opening row according to the sliding position. And a slide grating in which another opening row is formed,
A filter is detachably held, and the filter is detachably attached to the indoor end of the mount from the indoor side so that the filter blocks the ventilation passage and is located on the outdoor side of the slide lattice. comprising a filter holder, a,
The front cover has a front member on which the opening row is formed, and a ring-shaped side plate that stands up from the periphery of the front member on the side of the mount in a plate shape, and abuts on the flange of the mount,
The annular side plate includes a vertical side plate extending in the vertical direction on the left and right of the front member,
The flange is a plate that stands up on the left and right sides of the flange, and extends in the vertical direction. When the front cover is attached, the restriction plate controls the left and right positions of the front cover by overlapping the vertical side plate. Have,
One and the other of the vertical side plate and the regulation plate respectively have an engaging portion and an engaged portion that are releasably engaged with each other,
The engagement portion has a protrusion that protrudes from the one main surface of the vertical side plate and the regulation plate,
The engaged portion has a groove formed in the other main surface facing the one main surface, and the groove guides the protrusion when pressing the front cover against the flange. As described above, when the slope becomes shallower along the direction of movement of the protrusion and the step is formed deeper in a portion beyond the slope to prevent the protrusion from returning, when the front cover is shifted upward. A first groove portion that extends in the vertical direction while being deep so as to guide the protrusion, and a first groove portion that communicates with the first groove portion and extends so as to be inclined or curved from the vertical direction, thereby further extending the front cover. and a second groove in which the table cover for guiding the protrusion as Yuku away from the flange when shifting upward ventilation register. A cylindrical body that is inserted into a ventilation hole formed in the wall of the building, and a mount that has a flange that extends radially outward from the indoor side end of this cylindrical body and is attached to the indoor side wall surface,
A front cover that is detachably attached to the flange from the indoor side and has an opening row formed,
It is slidably attached to the front cover so as to be located on the flange side of the opening row, and the width of the ventilation passage is adjusted by changing the degree of overlap with the opening row according to the sliding position. And a slide grating in which another opening row is formed,
A filter is detachably held, and the filter is detachably attached to the indoor end of the mount from the indoor side so that the filter blocks the ventilation passage and is located on the outdoor side of the slide lattice. comprising a filter holder, a,
The front cover is arranged at a position on the indoor side with respect to the opening row with a gap, and is arranged so as to face the opening row, and is spaced apart from each other so as to form an opening row communicating with the opening row. A ventilation register having a row of shields arranged in a row . The ventilation register according to any one of claims 1 to 3, wherein the filter holder is integrally formed. Further comprising a knob that is connected to the slide grid so as to project from the slide grid to the indoor side, and manually slides the slide grid.
The ventilation register according to claim 1 , wherein the front cover is formed with an opening that allows the knob to move while exposing the knob to an indoor side. The front cover has a pressure receiving portion that is pressed by the elasticity of the knob,
One of the pressure receiving portion and the knob has a protrusion, the other has a recess for receiving the protrusion, and a plurality of the recesses are arranged in the direction of movement of the knob, so that the knob 6. The ventilation register according to claim 5, wherein the position of the ventilation register can be set to a plurality of positions in a stepwise manner. The ventilation register according to claim 5 or 6, wherein the knob is integrally formed with the slide lattice. The ventilation register according to any one of claims 1 to 7, wherein the front cover has a shape that covers the entire indoor surface of the flange.