JP3108641U - Filter fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attach a filter that can securely attach a rectangular frame body in an appropriate manner along a building even if an attachment body is attached to an existing vent structure without complicated alignment. Provide ingredients.
An attachment body having a flange extending at one end opening edge of an annular body, a filter holding portion, and an attachment main body having an annular connection portion continuously provided to the filter holding portion, The annular body and the connecting portion are configured to be substantially concentric and engageable with each other, and the first engaging piece extending to one opening edge of the annular body and the connecting portion has an interval in the circumferential direction. Two or more second engaging pieces extending to the other opening edge that are fitted outside are formed at intervals in the circumferential direction, and when the annular body and the connecting portion are fitted together The first engagement piece passes between the second engagement pieces, and the second engagement piece passes between the first engagement pieces so that the second engagement piece passes between the first engagement pieces. The interval is set.
[Selection] Figure 4

Description

  The present invention relates to a filter attachment for attaching a sheet-like filter to an existing ventilation opening structure provided for forming a ventilation opening on a wall surface in a room.

  Conventionally, in order to take outside air into the room or exhaust indoor air to the outside, a vent structure may be attached to form a vent on the wall surface. The ventilation opening structure includes a cylindrical main body (cylindrical main body) and a flange extending radially outward from one end opening edge of the cylindrical main body. The vent structure is attached by fitting a cylindrical main body into a through-hole drilled in the wall so that the flange faces the wall, and the opening is provided with a louver. In addition to the louver, there are various types such as a valve body provided in an air flow path (cylindrical main body) to enable adjustment of the air flow rate.

  These ventilator structures are such that the inside of the cylindrical main body communicates with the outside, and indoor air and outside air are circulated through the opening of the cylindrical main body to ventilate the room. Yes.

  As described above, the vent structure having the above-described structure takes outside air directly into the room, so that outdoor dust, dust, etc. enter the room, and a filter mounting tool for attaching a sheet-like filter to the vent structure. Is provided.

  Such a filter mounting tool includes a cylindrical mounting body in which a flange portion attached to the flange of the ventilation port structure via an adhesive means extends to one end opening edge, and a screw in an externally fitted state to the mounting body. It is comprised with the cyclic | annular exterior body attached together. The outer body is formed with an annular piece extending radially inward at one end opening edge, and when the outer body is screwed to the mounting body, the outer body is interposed between the mounting body and the piece. By interposing a sheet-like filter, the filter can be attached to an existing vent structure.

  By the way, since a filter attachment is provided in an indoor wall (ventilation opening structure), the appearance, the attached aspect, etc. are regarded as important. For this reason, there is a case where a rectangular region for attaching the filter is required. However, the filter fixture having the above-described configuration is configured to be attached by screwing an annular exterior body to the attachment body. Therefore, if the area where the filter is attached is rectangular, the exterior body is attached in a manner that is inclined with respect to the standing direction (vertical direction) of the building unless the attachment body is attached to the flange in consideration of the amount of screw tightening. There is a problem that it will be. Furthermore, in this case, when the exterior body is in a form along the building, there is a case where reliable screwing may not be ensured, and there is a problem that the exterior body cannot be securely attached.

  In view of such a situation, the present invention provides a filter holding portion for holding a filter along a building even if a base mounting body is appropriately attached to an existing vent structure without complicated alignment. It is an object of the present invention to provide a filter attachment that can be attached in an appropriate manner.

  The filter fitting according to the present invention has a flange formed at one end opening of the cylindrical main body, and the cylindrical main body is inserted and attached to the indoor wall so that the flange faces the indoor wall surface. A filter mounting tool for attaching a sheet-like filter to a vent structure, wherein a flange is extended to an opening edge of one end of the annular body, and the flange is attached to the flange via an adhesive means. An attachment body to be worn and an opening through which air is circulated are formed, and a filter holding part configured to hold the filter in a state of being opposed to the opening is provided, and the opening is provided to circulate air through the filter. An annular connecting portion connected to the filter holding portion so that the inner hole communicates with the filter holding portion, and the annular body and the connecting portion are configured to be substantially concentric and engageable with each other, The first engagement piece that extends radially outwardly at one opening edge of the fitting body and the connecting portion is provided at least two circumferentially spaced apart, and the other is fitted outside At least two second engaging pieces extending inward in the radial direction are formed at the opening edge of the annular member at intervals in the circumferential direction. When the annular body and the connecting portion are fitted, the first engaging piece is Between the first engagement pieces and the second engagement pieces so that the second engagement pieces pass between the first engagement pieces and the second engagement pieces pass between the second engagement pieces. The first engagement piece and the second engagement piece are engaged with each other by rotating the attachment body and the fixture main body relatively around the hole center in a state where the body and the connection portion are fitted. It is characterized by.

  According to the filter fixture of the said structure, since it is comprised so that an attachment body may be attached to the existing ventilation opening structure through an adhesion | attachment means, attachment is easy. In addition, the annular body and the connection portion are configured to be substantially concentric and engageable with each other, and of the annular body and the connection portion, a first extending radially outward to one opening end edge to be fitted thereinto. At least two engagement pieces are provided at intervals in the circumferential direction, and a second engagement piece that extends radially inwardly on the other opening end edge that fits outside has an interval in the circumferential direction. At least two or more are formed, and the first engagement piece passes between the second engagement pieces and the second engagement piece passes between the first engagement pieces when the annular body and the connection portion are fitted. As described above, the interval between the first engagement pieces and the second engagement pieces is set, and the first engagement is achieved by relatively rotating the annular body and the connection portion around the hole center (center) in the fitted state. Since the combination piece and the second engagement piece are configured to engage in the center direction, the annular body and the connection portion are fitted in a state where the first engagement piece and the second engagement piece do not interfere with each other. , Mounting is completed by rotating either one around the center. That is, the first engagement piece and the second engagement piece are engaged by relatively moving the first engagement portion and the second engagement portion in the circumferential direction without restricting the rotation direction and the rotation amount. Therefore, even if the fixture body (filter holding portion) is formed in a rectangular shape, the filter holding portion can be disposed along the wall surface of the building.

  As one aspect of the present invention, the first engagement piece and the second engagement piece may be provided at equal intervals in the circumferential direction. If it does in this way, when fitting an annular body and a connection part, a fitting position will become a fixed place and attachment is easy.

  As another aspect of the present invention, the first engagement piece and the second engagement piece may be provided at unequal intervals in the circumferential direction. If it does in this way, although the fitting position of the 1st engagement piece and the 2nd engagement piece will be limited to a fixed position, when a mounting body and a fixture main body are rotated relatively, other than a fitting position Then, since at least one 1st engagement piece and 2nd engagement piece will be in an engagement state, the probability that a fixture main body will detach | leave from an attachment body can be made low.

  Furthermore, at least one of the first engagement piece and the second engagement piece is provided with a biasing means for biasing the other in the engaged state, and at least one of the attachment body and the attachment body. On the other hand, there may be provided restricting means for restricting the first engagement piece and the second engagement piece from being separated by a predetermined amount or more by urging by the urging means. If the urging means is provided in this way, a force for relatively pulling the attachment body and the attachment body acts, and the attachment body can be maintained at a fixed position (attached posture). In addition, by providing a restricting means for restricting the first engagement piece and the second engagement piece from being separated by a predetermined amount or more by urging by the urging means, even if urging by the urging means is applied. The attachment body and the fixture main body (the first engagement piece and the second engagement piece) do not move relative to each other indefinitely, and the urging force can be reliably secured in the positioning of the first engagement piece and the second engagement piece. Can contribute. Therefore, the filter fixture can maintain the fixture main body with a good appearance when attached to the wall surface (ventilation port structure).

  And it is preferable that the said urging | biasing means is a push screw screwed by the other toward either one of said 1st engagement piece or 2nd engagement piece. If it does in this way, positioning of a fixture main body can be reliably performed with a simple structure.

  The biasing means is provided on the first engagement piece so as to bias the second engagement piece, and is a contact body provided on the fixture body so as to be able to contact a wall surface or a flange. If the restricting means is configured, the unrestricted relative movement between the first engaging piece and the second engaging piece due to the urging of the urging means is restricted with a simple configuration, and the urging by the urging means ( Urging force) can contribute to the positioning of the first engagement piece and the second engagement piece.

  The filter holding portion is formed with the opening and the support portion configured to support the outer peripheral edge of the filter, and the filter holding portion extends to the outer peripheral edge portion with a predetermined angle with respect to the support portion. A frame body having an enclosing portion surrounding the filter on the support portion, and a filter fixing member for pressing the filter supported by the support portion, the filter fixing member having an opening for circulating air toward the filter And may be configured to be detachable from the frame body. If it does in this way, a filter can be replaced | exchanged only by removing and attaching a filter fixing member, without removing the said whole filter fixture from the existing ventilation opening structure.

  The first engagement piece is preferably formed so as to be able to guide the inner peripheral surface of either the annular body or the connection portion. In this way, when the annular body and the connection portion are fitted, the first engagement piece is annular. The inner peripheral surface of any one of the body and the connection portion is guided by the first engagement piece, and the attachment body and the fixture main body can be easily positioned relative to each other.

  The second engagement piece may be formed so as to be able to guide the outer peripheral surface of either the annular body or the connection portion. In this way, when the annular body and the connection portion are fitted, the outer peripheral surface of either the annular body or the connection portion is guided by the second engagement piece, and the attachment body and the fixture main body The mutual positioning can be easily performed.

  And it is preferable that either one of said 1st engagement piece and 2nd engagement piece is set longer in the circumferential direction than the other. By doing so, the range in which the gap through which either the first engagement piece or the second engagement piece passes is reduced, and the first engagement piece and the first engagement piece in the circumferential direction of the annular body and the connection portion are reduced. The range in which the two engagement pieces can be engaged can be increased, and the range in which the posture of the fixture main body is adjusted with respect to the attachment body can be increased.

  According to the filter mounting tool of the present invention, the filter holding part for holding the filter can be provided along the building even if the base mounting body is appropriately mounted on the existing ventilation opening structure without performing complicated positioning. An excellent effect that it can be mounted in an appropriate mode can be obtained.

  Hereinafter, a filter fixture according to an embodiment of the present invention will be described with reference to the accompanying drawings.

  The filter attachment according to the present embodiment is attached to an existing ventilation opening structure provided on a wall surface defining a room. Prior to the description of the filter attachment, the ventilation opening structure will be described. As shown in FIG. 1, the mouth structure includes a cylindrical main body 50 that is fitted into a through hole H that is formed in the wall surface W so as to allow communication between the room and the outdoors, and one end opening edge portion of the cylindrical main body 50. And a flange 51 extending radially outward, and the ventilation can be performed by circulating the outside air and the room air using the through hole H and the inside of the cylindrical body 50 as a flow path. Yes. The ventilation opening structure A has a louver 52 in one end opening of the cylindrical main body 50, and opening / closing of flow paths such as opening / closing blades and valve mechanisms for opening / closing the flow paths and adjusting the air flow rate. There are various types such as a mechanism (not shown) built in the cylindrical main body 50, all of which are common in that they have the above basic configuration.

  These ventilation opening structures A are attached by fitting the cylindrical main body 50 into the through holes H of the wall surface W so that the flange 51 is in close contact with the wall surface W in the room.

  As shown in FIGS. 2 and 3, the filter attachment according to the present embodiment is configured to be able to hold the attachment 1 attached to the vent structure A and the sheet-like filter F, and the attachment It is comprised with the fixture main body 2 attached to 1. As shown in FIG.

  The mounting body 1 has an annular body 10 whose inner diameter is set to be substantially the same as or slightly larger than the inner diameter of the cylindrical main body 50 of the vent structure A, and a diameter at one end opening edge of the annular body 10. And a collar portion 11 extending outward in the direction. In addition, although the collar part 11 which concerns on this embodiment has the notch part 12 with the predetermined space | interval in the circumferential direction, and has the intermittent cyclic | annular form, this collar part 11 is formed in the continuous cyclic | annular form. Of course. The outer diameter of the flange 11 is set to be substantially the same as or larger than the outer diameter of the flange 51, and the end surface of the flange 11 serving as one end surface of the mounting body 1 A double-sided adhesive tape T formed in a donut shape corresponding to the shape is provided.

  The attachment body 1 is provided with two or more (three in the present embodiment) first engaging pieces 13 extending radially outward at the opening edge of the other end of the annular body 10. The first engagement pieces 13 are arranged at equal intervals in the circumferential direction of the annular body 10 (attachment body 1), and a second engagement piece 212 described later is passed between the first engagement pieces 13. The gap S1 is formed. The gap S1 is set wider than the length of the first engagement piece 13 in the circumferential direction of the annular body 10 (attachment body 1).

  The first engagement piece 13 is provided with urging means 15 for urging the second engagement piece 212 in the direction of the center (axis) of the annular body 10 (attachment body 1). The biasing means 15 according to this embodiment has the first engagement piece 13 penetrated in a direction orthogonal to the extending direction of the first engagement piece 13 (the direction of the center line of the annular body 10 (attachment body 1)). It is composed of a push screw screwed into the screw hole 14. That is, the axial force generated by screwing the push screw 15 acts on the second engagement piece 212 so that the second engagement piece 212 can be urged.

  The fixture main body 2 includes a filter holding portion 20 that holds the filter F, and an annular connection portion 21 for connecting the filter holding portion 20 to the attachment body 1. The filter holding unit 20 includes a frame body 200 having a rectangular shape in front view (square in this embodiment) and a filter fixing member 201 that fixes (holds) the filter F to the frame body 200.

  The frame body 200 is a resin molded product, and an opening (hole) 202 having a diameter substantially the same as the inner diameter of the connection portion 21 is formed at a substantially center, and is formed into a substantially square plate shape in plan view. In the bottom plate portion 203 as a support portion for supporting the outer peripheral edge portion of the filter, the surrounding portion 204 standing on the outer peripheral edge portion of the bottom plate portion 203, and the filter F in which the outer peripheral edge portion is supported by the bottom plate portion 203. A pair of auxiliary support portions 205 that support a region facing the hole 202 is provided. Further, the frame body 200 includes an extended portion 206 extending outward in a direction intersecting the surrounding portion 204 around the entire distal end portion of the surrounding portion 204, and a distal end of the extending portion 206. And an exterior portion 207 that is a restricting means extending toward the bottom plate portion 203 so as to face the surrounding portion 204, and the outer surface of the frame body 200 is formed by the outer surfaces of the extension portion 206 and the exterior portion 207. To make up. That is, the surrounding part 204, the extending part 206, and the exterior part 207 are formed so as to form a U-shaped cross section.

  Since the surrounding portion 204 is extended on the outer peripheral edge of the bottom plate portion 203 having a square shape as described above, two sets of facing surfaces are formed in the frame body 200, and one set of them is formed. A locking hole 208 into which a locking piece 217 (described later) provided in the filter fixing member 201 is inserted is formed in one of the opposing surfaces 204a and 204b in a long hole shape along the leading edge (upper edge in the figure). Has been. In this embodiment, since the two locking pieces 217 are provided with a predetermined interval, the locking hole 208 also has a predetermined interval so as to correspond to the arrangement of the locking pieces 217. Two are provided.

  The filter fixing member 201, which will be described later, straddles the other facing surface 204b facing the surface 204a provided with the locking hole 208 and the extending portion 206 continuing to the other facing surface 204b. A locking hole 209 is provided in which the claw 218 is fitted in the engaged state. That is, the lock hole 209 is formed so that the lock claw 218 is engaged with the end edge that defines the lock hole 209 so as to be engaged with each other.

  The exterior portion 207 is in a state in which the attachment body 2 is attached to the attachment body 1 (a state in which the first engagement piece 13 and the second engagement piece 212 are engaged), and the tip on the bottom plate portion 203 side is indoors. The amount of extension from the extension portion 206 is set so as to be substantially in contact with the wall surface W, and when the second engagement piece 212 is urged by the push screw 15, the attachment body 1 and the attachment tool The main body 2 (the first engaging piece 13 and the second engaging piece 212) functions as a restricting means (abutting body) that restricts unlimited movement by the biasing force.

  The pair of auxiliary support portions 205 are provided to support the filter F in an auxiliary manner, and are provided in parallel at a predetermined interval so as to be substantially parallel to the facing surfaces 204a and 204b. ing. Further, the auxiliary support portion 205 according to the present embodiment is configured to hold the filter F in a curved shape. Therefore, it is provided in such a manner that it protrudes in the extending direction of the surrounding portion 204 from one surface of the bottom plate portion 203. Therefore, the filter F is a mode in which both ends are directly supported by the bottom plate portion 203 and both end portions are supported by the bottom plate portion 203 via a pair of auxiliary support portions 205 (strictly speaking, both end portions are A part of which is supported).

  The frame body 200 having the above-described configuration is a resin molded product, and the bottom plate portion 203, the surrounding portion 204, the extending portion 206, and the exterior portion 207 are integrally molded in consideration of moldability during manufacturing. The pair of auxiliary support portions 205 are formed separately from these. Therefore, positioning protrusions that are fitted into non-penetrating positioning holes 210 formed in one surface of the bottom plate portion 203 that is the inner surface of the frame main body 200 at both ends of the pair of auxiliary support portions 205. 211 is provided, is fixed to a predetermined position across the hole 202 formed in the bottom plate portion 203, and is configured to be the frame body 200 having the above-described configuration.

  The connection portion 21 is connected to the other surface of the bottom plate portion 203 so that the inside thereof is substantially concentric with the hole 202 formed in the bottom plate portion 203, and an attachment body is attached to the edge of the front end opening. A first engaging piece 13 and a second engaging piece 212 that engage with each other are provided extending radially inward. Two or more (three in the present embodiment) of the second engagement pieces 212 are provided in the circumferential direction of the connection portion 21 and are formed in an intermittent annular shape in the circumferential direction. ing. The connection portion 21 has an inner diameter that can be fitted onto the annular body 10 via the second engagement piece 212. That is, the second engagement piece 212 extends from the connection portion 21 so that the distal end surface thereof is substantially slidably contacted on the outer peripheral surface of the annular body 10 when the connection portion 21 is externally fitted to the annular body 10. Is set, and is guided to the outer peripheral surface of the annular body 10 so that positioning with respect to the mounting body 1 can be performed.

  The gap S2 between the second engagement pieces 212 in the circumferential direction of the connection portion 21 is set wider than the length of the first engagement piece 13 in the circumferential direction of the annular body 10 (circumferential direction of the connection portion 21). When the connection portion 21 is externally fitted to the attachment body 1, the first engagement piece 13 passes between the second engagement pieces 212. The second engagement piece 212 is set such that the circumferential length is longer than the circumferential length of the first engagement piece 13, and the second engagement piece 212 is an area in which the first engagement piece 13 can be engaged. It tries to increase. That is, the first engagement piece 13 is set to have a circumferential length shorter than that of the second engagement piece 212, and the first engagement piece 13 is engaged with the annular body 10 and the connection portion 21. The passing gap S2 is reduced. In the present embodiment, the annular body 10 is set so that the inner diameter can be fitted into the connection portion 21 via the first engagement piece 13, and the annular body 10 and the connection portion 21 are fitted. The amount of extension from the annular body 10 is set so that the distal end surface of the first engagement piece 13 substantially slides on the inner peripheral surface of the connection portion 21 when the annular body 10 is fitted into the connection portion 21. Has been.

  Therefore, in this embodiment, since the outer peripheral surface of the annular body 10 can be guided by the tip surface of the second engagement piece 212 as described above, the engagement between the annular body 10 and the connection portion 21 is achieved. At the same time, the connection portion 21 is guided by the first engagement piece 13 and at the same time the annular body 10 is guided by the second engagement piece 212, thereby facilitating the positioning of the fixture body 2 with respect to the attachment body 1. Has achieved.

  The filter fixing member 201 is configured to hold the filter F disposed (supported) on the frame body 200 by pressing the outer peripheral edge of the filter F disposed in the frame body 200. Specifically, the filter fixing member 201 is formed in a frame shape by extending in a substantially orthogonal direction from an outer peripheral portion 213 having a rectangular shape in plan view as an exterior of the filter fixture, and an outer peripheral edge portion of the exterior portion 213. , And a fitting portion 214 fitted in the surrounding portion 204.

  The exterior portion 213 according to the present embodiment is provided with an opening 215 (hereinafter referred to as an air circulation opening) in order to ensure the air circulation with respect to the held filter F. In the present embodiment, the air circulation openings 215 are formed in a rectangular shape, and are formed in parallel with a predetermined interval from one end to the other end. Thereby, a crosspiece 216 is formed between the air circulation openings 215, and the filter F can be pressed by the crosspiece 216. In other words, the crosspiece 216 is formed to face the pair of auxiliary support portions 205 in the frame main body 200, and each auxiliary support portion 205 and the crosspiece are in a state in which the fitting portion 214 is fitted in the surrounding portion 204. The filter F is sandwiched between the portion 216 and the holding of the filter F can be strengthened.

  Then, two locking pieces 217 are extended from one end edge of the exterior portion 213 with a gap in a direction in which the one end edge extends. On the other hand, the lock claw 218 is extended substantially at the center of the other end edge of the filter fixing member 201. The lock claw 218 has a substantially U-shaped cross section so that it can be elastically deformed. One end of the lock claw 218 is connected to the filter fixing member 201, and the other end engages with an end edge that defines the lock hole 209. A locking projection 219 is provided to be stopped. The lock claw 218 is fitted into the lock hole 209 in a state where the fitting portion 214 is fitted to the surrounding portion 204, and the locking projection 219 is inserted into the lock hole 209 in this fitted state. It is designed to be locked to the edge.

  A gripping piece 220 for releasing the locking state of the locking protrusion 219 is further extended from the position where the locking protrusion 219 is formed. That is, the locking projection 219 is configured to be locked to the end edge of the locking hole 209 by its own elastic restoring force, and the other end approaches one end side facing the other via the grip piece 220. By being elastically deformed, the locking by the locking projection 219 is released.

  The filter attachment according to the present embodiment has the above-described configuration, and attachment to the existing vent structure A will be described below.

  First, as shown in FIG. 4 (a), the attachment body 1 is attached to the flange 51 of the ventilation opening structure A by the double-sided adhesive tape T provided on the flange portion 11 of the attachment body 1. At this time, it is attached so that the center line of the opening (flow path) of the ventilation opening structure A and the attachment body 1 (annular body 10) is substantially coincident. That is, the attachment body 1 is appropriately attached to the flange 51 via the double-sided adhesive tape T so that the hole of the annular body 10 and the flow path of the ventilation opening structure A can communicate with each other.

  Then, as shown in FIG. 4B, the fixture main body 2 (frame main body 200) is arranged so that the second engagement piece 212 is located between the first engagement pieces 13 (gap S1). 10 and the connection part 21 are fitted. At this time, as shown in FIG. 5 (a), the first engagement piece 13 passes between the second engagement pieces 212 while being substantially in sliding contact with the inner peripheral surface of the connection portion 21, while the second engagement piece 212 passes between the first engaging pieces 13 while being substantially in sliding contact with the outer peripheral surface of the annular body 10. And while the 1st engagement piece 13 was located in the attachment main body 2 side with respect to the 2nd engagement piece 212, the 2nd engagement piece 212 was located in the attachment body 1 side with respect to the 1st engagement piece 13 In this state, as shown in FIG. 4C, the fixture body 2 is rotated around the axis of the connection portion 21 (attachment body 1). If it does so, the 1st engagement piece 13 and the 2nd engagement piece 212 will rotate relatively in the circumferential direction, engaging in the said axial direction.

  When the frame main body 200 stops rotating at a position where the frame main body 200 is in the state of the wall surface W, pillar, etc. in the room and the set screw 15 is screwed in, the first engagement piece 13 and the first engagement piece 13 are As shown in FIG. 5 (b), the first engagement piece 13 and the second engagement piece 212 maintain the engaged state, and the frame main body 200 of the frame body 200 is stretched. Proper positioning will be performed. When the push screw 15 is screwed in too much, the exterior portion 207 as the restricting means comes into contact with the wall surface W, so that the attachment body 1 and the attachment body 2 can be reliably moved without relative movement. Positioned (see FIG. 3). In addition, since the exterior portion 207 contacts the wall surface W, dust and dust do not enter between the wall surface W and the exterior portion 207 after installation (see FIG. 3).

  Thereafter, as shown in FIG. 4 (d), the filter F is disposed in the frame body 200, and as shown in FIG. 4 (e), the locking piece 217 of the filter fixing member 201 is inserted into the locking hole 208 of the frame body 200. The fitting portion 214 is fitted into the surrounding portion 204 with the contact position between the locking piece 217 and the locking hole 208 as a fulcrum. Then, the lock claw 218 provided at the end opposite to the locking piece 217 comes into contact with the opening edge of the lock hole 209 of the frame main body 200 and enters the lock hole 209 while being elastically deformed. Finally, after the locking protrusion 219 gets over the opening edge, the locking claw 218 restores its posture by its own elasticity, and the locking protrusion 219 is locked to the opening edge. As shown in 4 (f), the attachment of the filter attachment is completed. In this state, as shown in FIG. 6, the frame main body 200 is attached in a state in which the frame main body 200 is in an aspect along the wall surface W or the pillar in the room.

  As described above, since the filter fixture according to the present embodiment is configured to attach the attachment body 1 to the existing ventilation opening structure A via the bonding means, the attachment is easy.

  In addition, the annular body 10 and the connecting portion 21 are configured to be substantially concentric and engageable with each other, and the first engagement piece 13 extending radially outward at the opening edge of the annular body 10 is circumferentially arranged. Two or more (three) are provided at intervals, and two or more second engagement pieces 212 extending radially inward at the opening edge of the connecting portion 21 are provided at intervals in the circumferential direction. (Three) provided, and when the annular body 10 (attachment body 1) and the connection portion 21 are fitted, the first engagement piece 13 passes between the second engagement pieces 212, and the second engagement piece 212 Since the interval S1 between the first engagement pieces 13 and the interval S2 between the second engagement pieces 212 are set so as to pass between the one engagement piece 13, the first engagement piece 13 and the second engagement piece 13 are set. The joining piece 212 can be easily engaged and the connection portion 21 (mounting tool body 2) is rotated around the center with respect to the mounting body 1 regardless of the rotation direction. It can be engaged with the first engaging piece 13 and the second engaging piece 212 by. That is, the first engagement piece 13 and the second engagement piece 212 are engaged with each other except when the annular body 10 (attachment body 1) and the connection portion 21 are fitted, and in the circumferential direction. Since it can move relatively, the frame main body 200 can be disposed along the wall surface W in the room simultaneously with the operation of engaging the first engagement piece 13 and the second engagement piece 212.

  Moreover, since the 1st engagement piece 13 and the 2nd engagement piece 212 are provided in the circumferential direction at equal intervals in the filter attachment tool which concerns on this embodiment, the annular body 10 and the connection part 21 are fitted. At this time, the fitting position becomes a fixed position, and attachment is easy.

  Further, since the biasing means for biasing the first engagement piece 13 in the direction of separating the second engagement piece 212 in the engaged state is provided, the attachment body 1 and the attachment body 2 are relatively moved. The attracting force will act, and the fixture body 2 can be maintained at a fixed position. And since the urging means is constituted by the push screw 15 screwed into the first engagement piece 13 toward the second engagement piece 212, the positioning of the fixture body 2 is ensured with a simple structure. It can be performed.

  Further, since the fixture main body 2 is provided with a restricting means for restricting the first engaging piece 13 and the second engaging piece 212 from moving in a direction away from each other when the first engaging piece 13 and the second engaging piece 212 are in the engaged state. By biasing by the biasing means (push screw 15), a force acts in a direction in which the first engagement piece 13 and the second engagement piece 212 are pressed against each other, and reliable engagement can be achieved. . And the exterior part 207 which is a contact body which can contact | abut to the wall surface W is provided in the fixture main body 2 so that the frame main body 200 may be maintained in a predetermined position, and this exterior part 207 was made to function as a control means. As a result, the first engagement piece 13 and the second engagement piece 212 can be reliably engaged with each other with a simple configuration, and dust and dirt enter between the frame body 200 and the wall surface W in the attached state. Can be prevented.

  The filter holding unit 20 includes a frame main body 200 and a filter fixing member 201 that is detachably fitted to the frame main body 200. The filter F disposed in the frame main body 200 is pressed by the filter fixing member 201. Thus, the filter F can be easily replaced by simply attaching and detaching the filter fixing member 201.

  Further, since the first engagement piece 13 is formed so as to be slidable on the inner peripheral surface of the connection portion 21, the annular body 10 (attachment body 1) and the connection portion 21 (attachment tool body 2) are fitted. At this time, the connection portion 21 is guided by the first engagement piece 13, and the attachment body 1 and the attachment body 2 can be easily positioned relative to each other. Further, since the second engagement piece 212 is also formed so as to be slidable on the outer peripheral surface of the annular body 10, when the annular body 10 and the connection portion 21 are fitted, the annular body 10 is in contact with the second engagement piece 212. Therefore, the attachment body 1 and the attachment body 2 can be easily positioned relative to each other, and the positioning accuracy can be increased.

  Since the circumferential length of the first engagement piece 13 is set shorter than that of the second engagement piece 212, the range in which the gap S2 between the second engagement pieces 212 and 212 is formed is reduced. The range in which the first engagement piece 13 and the second engagement piece 212 can be engaged in the circumferential direction of the annular body 10 and the connecting portion 21 can be increased, and the attachment body 2 can be moved relative to the attachment body 1. The range for adjusting the posture can be increased.

  In addition, the filter attachment tool of this invention is not limited to the said embodiment, Of course, a various change can be added in the range which does not deviate from the summary of this invention.

  In the above embodiment, the first engagement piece 13 and the second engagement piece 212 are provided three by three, but the present invention is not limited to this, and the first engagement piece 13 and the second engagement piece 212 are: At least two or more may be provided. Further, the first engagement piece 13 and the second engagement piece 212 do not necessarily have to be the same number.

  In the above-described embodiment, the annular body 10 is fitted into the connection portion 21 of the fixture body 2, and the first engagement piece 13 extending radially outward is provided at the opening edge of the annular body 10. At the same time, the second engagement piece 212 extending radially inward is provided at the opening edge of the connection portion 21 of the attachment body 2. However, the present invention is not limited to this. The connection portion 21 of the main body 2 is fitted into the annular body 10, the first engagement piece 13 extending radially outward is provided on the connection portion 21, and the annular body 10 extends radially inward. You may make it provide the taken out 2nd engagement piece 212. FIG.

  In the above embodiment, the biasing means 15 is provided to ensure the engagement of the first engagement piece 13 and the second engagement piece 212. For example, the first engagement piece 13 and the second engagement piece 212 are provided. Since the engagement state can be maintained only by the mutual contact force, it is not always necessary to provide the urging means. However, in order to reliably maintain the fixture body 2 at a predetermined position (appropriate posture with respect to the wall surface W in the room), it is preferable to provide the urging means 15.

  In the above embodiment, the urging means 15 for urging the second engagement piece 212 toward the attachment body 1 is provided on the attachment body 1 side (first engagement piece 13), but the present invention is limited to this. For example, the urging means 15 may be provided on the second engagement piece 212 so as to be urged from the second engagement piece 212 side to the first engagement piece 13 side. The first engagement piece 13 and the second engagement piece 212 are urged from the piece 13 side toward the second engagement piece 212 side and urged from the second engagement piece 212 side toward the first engagement piece 13 side. The biasing means 15 may be provided on both the second engagement pieces 212. That is, when the biasing means 15 is provided, a force that relatively separates the first engagement piece 13 and the second engagement piece 212 that are engaged in the axial direction of the attachment body 1 and the connection portion 21. The urging means 15 may be provided on at least one of the first engagement piece 13 and the second engagement piece 212 so that.

  In the above-described embodiment, the urging means is configured by the push screw 15. However, the urging means is not limited to this. For example, as the urging means, at least one of the first engagement piece 13 and the second engagement piece 212 is used. On one side, a pressing body that urges the other side via a spring or the like may be provided. In this case, when engaging the first engagement piece 13 and the second engagement piece 212 (relatively rotating the attachment body 1 and the attachment body 2 around the axis), the first engagement piece 13 and the second engagement piece 13 are engaged. It goes without saying that the pressing body is provided so as to be able to be withdrawn and withdrawn so as not to disturb the relative rotation of the joining piece 212.

  In the embodiment described above, the restricting means for restricting the first engaging piece 13 and the second engaging piece 212 from being separated by a predetermined amount or more by urging by the urging means is provided on the mounting body 2 with the exterior portion 207 (contact portion). However, the present invention is not limited to this. For example, the attachment body 1 may be provided with a restricting means. In this case, a contact body that can contact any part of the fixture body 2 (for example, the other surface of the bottom plate portion 203) may be provided on the attachment body 1. Even in this case, similarly to the above-described embodiment, the first engagement piece 13 and the second engagement piece 212 are moved by the urging force of the urging means due to the interference between the attachment body 1 and the attachment body 2. It is possible to prevent the urging force from acting effectively without being relatively spaced apart.

  In the said embodiment, although the 1st engaging piece 13 and the 2nd engaging piece 212 were provided in the circumferential direction of the annular body 10 (connection part 21 of the fixture main body 2) at equal intervals, it is not limited to this. For example, the first engagement pieces 13 and the second engagement pieces 212 may be provided at unequal intervals in the circumferential direction. If it does in this way, although the fitting position of the 1st engagement piece 13 and the 2nd engagement piece 212 will be limited to a fixed position, relative attachment body (attachment body 1) and the connection part 21 are made relatively. Since the at least one first engagement piece 13 and the second engagement piece 212 are engaged at a position other than the fitting position when rotated, the probability that the fixture body 2 is detached from the attachment body 1. Can be lowered.

  Furthermore, in the above embodiment, the extension amount of the first engagement piece 13 is set so that the inner peripheral surface of the connection portion 21 can be guided, and the second engagement piece 212 is extended so that the outer peripheral surface of the annular body 10 can be guided. Although the amount of protrusion is set, the present invention is not limited to this. For example, the second engagement piece 212 is extended so that it can pass between the first engagement pieces 13 and 13 without contacting the annular body 10. The extension amount is set, and the extension amount of the first engagement piece 13 is set so that it can simply pass between the second engagement pieces 212, 212 without contacting the connection portion 21, The extension amount may be set so that either the engagement piece 13 or the second engagement piece 212 can guide the annular body 10 or the connection portion 21.

The perspective view of the vent structure as an object which attaches the filter fixture concerning one embodiment of the present invention is shown. The disassembled perspective view of the filter fixture which concerns on the embodiment is shown. It is a longitudinal cross-sectional view of the filter attachment tool which concerns on the same embodiment, Comprising: The state attached to the vent structure is shown. It is a work process figure at the time of attaching the filter attachment tool concerning the embodiment to a ventilation opening structure, (a) shows the state at the time of attaching an attachment body to a ventilation opening structure, (b) is attachment A state in which the second engagement piece of the fixture body is arranged between the first engagement pieces of the body and the attachment body and the attachment body are fitted to each other, and (c) the first engagement piece and the first engagement piece are shown. (D) shows a state in which the filter is disposed in the frame body, (e) shows a state in which the exterior body is attached to the frame body, F) shows a state in which the filter mounting has been completed. It is explanatory drawing of the state of the 1st engagement piece at the time of attaching the filter attachment which concerns on the same embodiment, and a 2nd engagement piece, Comprising: (i) is a fixture main body (connection part) with respect to an attachment body. (B) shows a state in which the first engagement piece and the second engagement piece are engaged by relatively rotating the attachment body and the attachment body. The external appearance perspective view seen from diagonally downward of the state which attached the filter attachment tool which concerns on the embodiment to the ventilation port structure is shown.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Attachment body, 2 ... Attachment tool main body, 10 ... Ring body, 11 ... Gutter part, 12 ... Notch part, 13 ... First engagement piece, 14 ... Screw hole, 15 ... Push screw, 20 ... Filter holding part, DESCRIPTION OF SYMBOLS 21 ... Connection part, 50 ... Cylindrical main body, 51 ... Flange, 52 ... Gully, 200 ... Frame main body, 201 ... Filter fixing member, 202 ... Hole (opening), 203 ... Bottom plate part (support part), 204 ... Surrounding part 204a, 204b ... opposing surface, 205 ... auxiliary support part, 206 ... extension part, 207 ... exterior part, 208 ... locking hole, 209 ... locking hole, 210 ... positioning hole, 211 ... positioning protrusion , 212 ... second engaging piece, 213 ... exterior part, 214 ... fitting part, 215 ... air circulation opening (opening), 216 ... crosspiece, 217 ... locking piece, 218 ... lock claw, 219 ... locking Projections, 220 ... gripping pieces, A ... ventilation port structure, F ... filter, ... through hole, S ... gap, W ... wall, T ... double-sided adhesive tape

Claims (10)

  A flange is formed at one end opening of the tubular body, and the tubular body is inserted into the indoor wall body so that the flange faces the indoor wall surface. A filter attachment for attaching the filter, wherein a flange is provided at one end opening edge of the annular body, and the flange is attached to the flange via an adhesive means; An opening for circulating air is formed, and a filter holding part configured to hold the filter in a state of being opposed to the opening is provided, and an inner hole communicates with the opening so that air can flow through the filter. An annular connecting portion connected to the filter holding portion, and the annular body and the connecting portion are configured to be substantially concentric with each other. Do There are at least two first engagement pieces extending radially outward at the opening edge of the other side with a gap in the circumferential direction, and extending radially inward to the other opening edge that fits externally. At least two protruding second engagement pieces are formed at intervals in the circumferential direction, and when the annular body and the connection portion are fitted, the first engagement piece passes between the second engagement pieces. The state where the intervals between the first engagement pieces and the second engagement pieces are set so that the second engagement pieces pass between the first engagement pieces, and the annular body and the connection portion are fitted. Thus, the filter attachment tool is configured such that the first engagement piece and the second engagement piece are engaged by rotating the attachment body and the attachment tool body relatively around the hole center.   The filter fixture according to claim 1, wherein the first engagement piece and the second engagement piece are provided at equal intervals in the circumferential direction.     The filter fixture according to claim 1, wherein the first engagement piece and the second engagement piece are provided at irregular intervals in the circumferential direction.   At least one of the first engagement piece and the second engagement piece is provided with urging means for urging the other in the engaged state, and at least one of the attachment body and the attachment body. The filter according to any one of claims 1 to 3, further comprising a restricting means for restricting the first engagement piece and the second engagement piece from being separated by a predetermined amount or more by urging by the urging means. Mounting tool.   The filter mounting tool according to claim 4, wherein the urging means is a push screw screwed into one of the first engagement piece and the second engagement piece.   The urging means is provided on the first engagement piece so as to urge the second engagement piece, and is a contact body provided on the fixture main body so as to be able to abut against a wall surface or a flange. 6. The filter mounting tool according to claim 4, wherein the filter mounting tool is configured.   The filter holding portion is formed with the opening and is configured to support at least the outer peripheral edge of the filter, and extends to the outer peripheral edge with a predetermined angle with respect to the support. A frame body having an enclosing portion surrounding the filter on the support portion, and a filter fixing member for pressing the filter supported by the support portion, the filter fixing member having an opening for circulating air toward the filter The filter mounting tool according to any one of claims 1 to 6, wherein the filter body is configured to be detachable from the frame body.   The filter fitting according to any one of claims 1 to 7, wherein the first engagement piece is formed so as to be capable of guiding an inner peripheral surface of either the annular body or the connection portion.   The filter fitting according to any one of claims 1 to 8, wherein the second engagement piece is formed so as to be capable of guiding an outer peripheral surface of either the annular body or the connection portion.   The filter mounting tool according to any one of claims 1 to 9, wherein one of the first engagement piece and the second engagement piece is set to have a circumferential length longer than the other.

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