JP2011102506A - Window sash-mounted ventilator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ventilator securing a cross-sectional area of flow of a ventilation passage, and allowing efficient cap mounting work even when the longitudinal width is short. <P>SOLUTION: The ventilator includes a body formed of an extruded shape and having the ventilation passage serving for communication between the indoors and outdoors, and an opening/closing means for opening/closing the ventilation passage. Screw hole members 40 are fixed to both right and left ends of the body, and the ventilation passage is formed between a pair of screw hole members 40. Caps 30 are mounted to the body to cover screw hole members 40. The screw hole member 40 has a locking claw 46 at its side face, and the cap 30 has an elastic claw 37 extending in the longitudinal direction of the body. The cap 30 is pushed in to lock the elastic claw 37 to the locking claw 46 of the screw hole member 40. The cap 30 can thereby be mounted to the body without screw-fastening. A main screw that penetrates a stile passes through a through-hole 35 of the cap 30 and is screwed into the screw hole member 40 to fix the ventilator to the stile. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a ventilation device attached to the upper edge of a window screen.

  Ventilators attached to the upper edge of window shojis are known. This type of ventilator includes an upper heel integrated type (a type that also serves as an upper heel) and an upper heel separate type (a type that is separated from the upper heel and is fitted into the upper heel). In any type of ventilator, the main body has a ventilating passage made of an extruded mold that extends along the upper edge of the window shoji, communicates indoors and outdoors, opening and closing means for opening and closing the ventilating passage, and left and right ends of the main body. And an attached cap.

In the case of a ventilation device integrated with the upper heel, it is necessary to fix both ends of the main body to the upper ends of the left and right vertical folds of the window screen. In addition, even in the case of a strong wind region, it is required that both ends of the main body be fixed to the left and right vertical gutters even in a ventilation system of a separate upper cage type.
Therefore, the main body has a screw hole portion, and the screw that penetrates the upper end portion of the vertical shaft and passes through the cap is screwed while tapping the end portion of the screw hole portion, so that the main body is fixed to the vertical shaft. It has become.

By the way, since the main body is made of an extrusion mold, the screw hole portion extends over the entire length of the main body. When this screw hole part faces the ventilation passage, the flow cross-sectional area of the ventilation passage is reduced. Therefore, if it is going to secure the distribution cross-sectional area of a ventilation channel, it will be necessary to ensure an extra dimension only for the screw hole part, and the enlargement of a ventilator will be caused.
Recently, from the viewpoint of the daylighting and design characteristics of window shoji, it has been required to reduce the position (length) of the ventilator, but the above configuration cannot meet this requirement.

  Therefore, the present applicant has developed a ventilation device shown in Patent Document 1. In this ventilation device, screw hole members that are separate from the main body are fixed to both ends of the main body. When installing in a window shoji, the main screw is passed through the vertical shaft and the cap, and screwed into the screw hole of the screw hole member, thereby fixing the ventilation device to the vertical shaft.

  According to the above configuration, the ventilation passage is formed between the pair of left and right screw hole members, and when viewed from the longitudinal direction of the main body, at least a part of the screw hole member and the ventilation passage overlap each other and interfere with the ventilation passage. Since it is not necessary to form a long screw hole portion in the main body, it is possible to reduce the size of the ventilation device while ensuring a sufficient flow cross-sectional area of the ventilation passage.

  In patent document 1, the structure which attaches the said cap to a main body is as follows. The cap has a main portion that closes both end openings of the main body, and a receiving convex portion that protrudes from the main portion in the longitudinal direction of the main body toward the ventilation passage. On the other hand, the screw hole member has a receiving surface extending in the longitudinal direction of the main body. The auxiliary screw is passed through the main part of the cap and screwed while tapping between the surface of the receiving convex portion of the cap and the receiving surface of the screw hole member, thereby attaching the cap to the main body.

JP 2008-156976 A

  In Patent Document 1, since the cap is attached to the main body by screwing the sub screw, its workability is low.

In order to solve the above-mentioned problem, the present invention comprises a main body having a ventilation passage made of an extruded mold material extending along the upper edge of the window shoji and communicating indoor and outdoor, and an opening / closing means for opening and closing the ventilation passage of the main body, A screw hole member fixed to each of the left and right ends of the main body and a resin cap attached to at least one of the left and right ends of the main body and having a main portion covering the corresponding screw hole member, between the pair of left and right screw hole members The ventilation passage is formed, and when viewed from the longitudinal direction of the main body, these screw hole members and at least a part of the ventilation passage overlap,
The screw hole member has a screw hole extending in the longitudinal direction of the main body, and the main portion of the cap has a through hole for inserting a screw. The through hole overlaps the screw hole when viewed from the longitudinal direction of the main body. The main screw passing through the upper ends of the left and right vertical rods of the window shoji is fixed to the left and right vertical rods by being screwed into the screw holes of the screw hole member. In the ventilation device that passes through the through hole for screw insertion,
At least the screw hole member corresponding to the cap has a locking claw on its outer surface, the cap has an elastic claw extending in the longitudinal direction of the main body toward the main body, and pushes the cap toward the main body. At this time, the elastic claw hits the locking claw of the screw hole member and elastically deforms in a direction perpendicular to the longitudinal direction of the main body, and when the cap is further pushed in, the elastic claw returns to its original shape and is The cap is attached to the main body by being locked.

  According to the above configuration, the device can be reduced in size by arranging the screw hole members for fixing to the vertical shaft of the window shoji at both ends of the ventilation passage of the main body, and the locking claws of the screw hole member and the cap The cap can be attached to the main body with good workability by locking with the elastic claw.

Preferably, the elastic piece has a guide surface and a recess arranged in a direction perpendicular to the longitudinal direction of the main body and the elastic deformation direction of the elastic piece, and the guide surface is inclined with respect to the longitudinal direction of the main body. The concave portion has a locking surface on the distal end side. When the elastic claw and the locking claw of the screw hole member are locked, the locking claw enters the concave portion of the elastic claw and the locking claw Further, the main portion of the cap has a through hole for inserting a release pin adjacent to the elastic claw, and the through hole overlaps with the guide surface when viewed from the longitudinal direction of the main body. The release pin is inserted through the through hole, the tip of the release pin is applied to the guide surface of the elastic piece, and the release pin is further pressed to elastically deform the elastic piece to Release the locked state.
According to this structure, even after the cap is attached to the main body and the assembly of the ventilation device is completed, when a failure occurs in the open / close operation test or the like, the elastic pin of the cap and the locking claw of the screw hole member are The locked state can be released, the ventilation device can be disassembled, and the defective part can be repaired or replaced, and then reassembled.

Preferably, the locking claw is formed on a side surface of the screw hole member on the indoor side or the outdoor side, and the elastic piece of the cap is elastically deformable in the indoor / outdoor direction.
According to this, the vertical dimension of the screw hole member is not increased by the locking claw, and the increase in the vertical dimension of the ventilation device can be suppressed.

Preferably, a pair of the locking claws are formed apart in the longitudinal direction of the main body, the locking claws have a symmetrical shape, and have locking surfaces orthogonal to the longitudinal direction of the main body on opposite sides. On the opposite side, the guide surface is inclined with respect to the longitudinal direction of the main body.
According to this configuration, a common screw hole member can be used for the left and right screw hole members.

  According to the present invention, it is possible to reduce the size of the apparatus by arranging the screw hole members for fixing the window shoji on the vertical shaft at both ends of the ventilation passage of the main body, and to fix the locking claws of the screw hole member and the cap. The cap can be attached to the main body with good workability by locking with the elastic claw.

(A) is a front view of the upper end part of the window shoji incorporating the ventilation apparatus concerning this invention. (B) is a left side view of the same. It is II-II arrow sectional drawing in FIG. FIG. 3 is a cross-sectional view taken along the line III-III in FIG. 1. It is a left view of the ventilation apparatus. It is a principal part expanded bottom view of the 2nd type | mold material of the main body which attached the screw hole member in the ventilation apparatus. It is a principal part enlarged front view which decomposes | disassembles and shows the main body and cap of the ventilation apparatus. It is the disassembled perspective view which looked at the screw hole member and cap of the ventilation apparatus from the indoor direction. It is the disassembled perspective view which looked at the screw hole member and cap of the ventilation apparatus from the outdoor direction. It is a principal section expanded plane sectional view of a screw hole member and a cap of the ventilator, (A) shows a state before connection, and (B) shows a state after connection. In the ventilation apparatus, it is a principal enlarged plan sectional view for sequentially explaining the process of releasing the connection between the screw hole member and the cap, (A) shows the state before inserting the release pin, (B), (C) (D) shows a state where the insertion of the release pin is completed and the elastic claw of the cap is disengaged from the locking claw of the screw hole member.

  Hereinafter, a ventilating apparatus according to an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the ventilator 5 is an upper heel integrated type, and also serves as an upper heel of the window shoji 1, and its left and right ends are at the upper ends of the left and right vertical folds 2, 3 of the window shoji 1. Each is connected.

  As shown in FIG. 2, the ventilation device 5 includes a main body 10, and the main body 10 is formed by assembling first and second mold materials 11 and 12 made of an aluminum (metal) extrusion mold material. It is configured.

  The first mold member 11 includes a shoji body squeezing portion 11a that squeezes the glass shoji 4 of the window shoji, a front wall 11b that stands up from the shoji body squeezing portion 11a and faces the indoor side, and an upper end of the front wall 11b. And a support connecting portion 11c protruding outward. A large number of vent holes 11x are formed in the front wall 11b at intervals in the longitudinal direction.

The second mold member 12 has a rail squeezed portion 12a that squeezes the rail 9 on the upper side of the window frame, and a back wall 12b that hangs down from an edge on the outdoor side of the rail squeezed portion 12a. A large number of ventilation holes 12x are formed in the back wall 12b at intervals in the longitudinal direction.
The upper end of the indoor side wall of the rail squeezing part 12a of the second mold member 12 is fitted into the support connecting part 11c of the first mold member 11, and the lower end of the back wall 12b is fitted to the obstacle squeezing part 11a of the first mold member 11. The second mold material 12 is connected to the first mold material 11 by fitting into the outer corners.

An internal space is formed between the first mold material 11 and the second mold material 12, and most of the internal space is provided as a ventilation passage 13. This ventilation passage 13 is connected to the indoor side ventilation hole 11x and the outdoor side ventilation hole 12x.
The ventilation passage 13 has an L-shaped cross section, and the vertical portion 13a (first portion) is between the front wall 11b of the first mold member 11 and the wall on the indoor side of the rail entrapment portion 12a of the second mold member 12. The horizontal portion 13b (second portion) is formed between the upper wall of the shoji body squeezing portion 11a of the first mold member 11 and the bottom wall of the rail squeezing portion 12a of the second mold member 12. Yes.

A cover 14 is attached to the first mold member 11 so as to cover the indoor side surface of the front wall 11a. A large number of vent holes 14x are formed in the cover 14 at intervals in the longitudinal direction. A filter 15 is interposed between the cover 14 and the front wall 11a. Therefore, the vent 11x of the first mold member 11 is connected to the indoor space via the filter 15 and the vent 14x of the cover 14.
In order to help understanding, the flow of air between indoors and outdoors is indicated by arrows in FIG.

The horizontal portion 13b of the ventilation passage 13 is disposed between the shoji body squeezing portion 11a and the rail squeezing portion 12a, and its vertical dimension determines the finding H (vertical width) of the entire ventilator 5. In the present embodiment, as will be described later, the horizontal portion 13b of the ventilation passage 13 has a vertical dimension that is minimal or close to that, and the finding H of the ventilation device 5 is smaller than the conventional one.
As a result, the finding H of the ventilator 5 can be made equal to the upper arm of the window shoji without the ventilator 5, so that the daylighting and the design can be improved.

  As shown in FIG. 1, a support plate 16 that is horizontally long is attached to the end of the first mold member 11, for example, the right end, covering the front wall 11 a and along with the cover 14. An operation knob 21 is supported on the support plate 16 so as to be slidable in the left-right direction. The operation knob 21 has a convex portion 21a (see FIG. 2) protruding to the outdoor side.

  As shown in FIG. 2, an opening / closing plate 22 is accommodated in the vertical portion 13 a of the ventilation passage 13. The upper end shaft portion 22a of the opening / closing plate 22 is supported by the support connection portion 11c of the first mold member 11 so as to be rotatable and slidable in the axial direction. A hole is formed in the end of the opening / closing plate 22, and the convex portion 21 a of the operation knob 21 is fitted in the hole, so that the opening / closing plate 22 slides as the operation knob 21 slides. Yes.

  Protrusions (not shown) projecting downward are formed at, for example, two locations on the lower edge of the opening / closing plate 22, and these projections are inserted into inclined grooves formed on the upper surfaces of two cam members (not shown), respectively. Has been. These cam members are arranged in the ventilation passage 13. As a result, when the opening / closing plate 22 slides in the axial direction as the operation knob 21 is slid in the left-right direction, the closed position in contact with the front wall 11b by the cam action of the projection and the inclined groove of the cam member, It swings between an open position away from the wall 11b.

  The operation knob 21, the opening / closing plate 22, and the cam member constitute an opening / closing means 20 for opening and closing the ventilation passage 13. Since the opening / closing means 20 is well known, detailed description thereof is omitted. Of course, as the opening / closing means, an opening / closing plate that slides in the longitudinal direction of the main body 10 while being in contact with the outdoor side surface of the front wall 11b may be used instead of the swingable opening / closing plate 22. By the way, this sliding opening / closing plate has vent holes of the same pitch as the vent holes 11x of the front wall 11b.

  As shown in FIG. 6, the ventilator 5 has screw hole members 40 fixed to the left and right ends of the main body 10, and resin caps 30 attached to the left and right ends of the main body 10 so as to cover the screw hole members 40. is doing. Details will be described below.

As shown in FIG. 6, both end portions of the second mold member 12 protrude in the longitudinal direction from the first mold member 11. Screw hole members 40 are fixed to both ends of the second mold member 12.
This screw hole member 40 is made of a short aluminum (metal) extrusion mold material, and as shown best in FIGS. 7 and 8, a base portion 41 that is substantially horizontal, and an indoor side edge portion of the base portion 41. , A first rib 43 rising from the edge of the base 41 on the outdoor side, a second rib 44 rising from an intermediate portion of the base 41, and the length of the indoor side surface (outer surface) of the screw hole 42. It has the engaging tongue part 45 which protrudes from a direction center part, and a pair of latching claw 46 which protrudes from the longitudinal direction both ends of the said surface.
The screw hole portion 42 has a screw hole 42a. In the present embodiment, a plurality of protrusions are formed along the longitudinal direction on the inner periphery of the screw hole 42a.

  As shown in FIGS. 5 and 6, the screw hole member 40 is fixed to the second mold member 12 with the ends thereof substantially aligned. A part of the screw hole member 40 is covered with the first mold member 11 when viewed from the indoor side, and the remaining part protrudes from the first mold member 11 together with the second mold member 12.

  The fixing of the screw hole member 40 to the second mold member 12 will be described. As shown in FIGS. 7 and 8, the second rib 44 is notched at two locations, and a through hole 47 is formed in the base portion 41 corresponding to the notch locations. As shown in FIGS. 3 and 5, a screw 50 (fixed screw) passes through the through-hole 47 vertically from below, and is screwed into the bottom wall of the rail squeezing portion 12 a of the second mold member 12. Is fixed to the bottom wall of the second mold member 12.

  The left and right screw hole members 40 are fixed in the following order. First, the second mold member 12 is slid with respect to the first mold member 11 so that one end portion protrudes greatly, and one screw hole member 40 is fixed to the protruding end portion. Next, the second mold member 12 is slid until the one screw hole member 40 comes into contact with the cam member fixed by caulking in the locking groove 11d of the first mold member 11, thereby causing the other end to protrude greatly. The other screw hole member 40 is fixed to the end portion. Next, the second mold member 12 is returned to a position where the protruding amounts at both ends are equal.

  A horizontal portion 13 b of the ventilation passage 13 is formed between a pair of left and right screw hole members 40 fixed to both ends of the main body 10. In other words, when viewed from the longitudinal direction of the main body 10, the screw hole member 40 and the horizontal portion 13 b of the ventilation passage 13 overlap each other.

  As shown in FIG. 3, the engagement tongue piece 45 of the screw hole member 40 is fitted in the engagement groove 11 d formed on the upper wall of the obstacle body squeezing portion 11 a of the first mold member 11.

As shown in FIGS. 7 and 9A, the pair of locking claws 46 are symmetrical with each other, and are made of thin pieces smaller than the width (the vertical dimension) of the side surface on the indoor side of the screw hole portion 42. . Each locking claw 46 has a locking surface 46a that is orthogonal to the longitudinal direction of the main body on the opposite side, and a guide surface 46b that is inclined with respect to the longitudinal direction of the main body on the opposite side. One of the pair of locking claws 46 is used to fix the cap 30 as described later.
The engaging tongue piece 45 and the locking claw 46 are cut out by cutting the extruded mold material.

  As shown in FIGS. 4, 7, and 8, the cap 30 has a main portion 31 that has a shape corresponding to the cross-sectional shape of the main body 10, and the main portion 31 encases the body 10 in the obstacle body. There is a shoji body squeezing part 31 a corresponding to the part 11 a and a rail squeezing part 31 b corresponding to the rail squeezing part 12 a of the main body 10.

  The main portion 31 has a first contact surface 31x that contacts the end surface of the first mold member 11 of the main body 10 and a second contact surface 3y that contacts the end surface of the second mold member 12, and these contact surfaces 31x, The ventilation passage 13 is blocked by 31y.

  The second contact surface 31y is disposed at a position farther from the main body 10 than the first contact surface 31x, and an accommodation recess 32 is formed between both contact surfaces 31x and 31y. The housing recess 32 accommodates the portions of the second mold member 12 and the screw hole member 40 that protrude from the first mold member 11, whereby the screw hole member 40 is covered with the cap 30.

  As shown in FIGS. 4, 7, and 8, two through holes 35 and 36 are formed in a portion of the main portion 31 of the cap 30 that faces the horizontal portion 13 b of the ventilation passage 13. The through hole 35 has a circular cross section and is arranged near the center in the thickness direction (indoor / outdoor direction) of the main body 10. The through hole 36 has a rectangular cross section and is arranged on the indoor side from the through hole 35. ing.

  As shown in FIG. 8, an elastic claw 37 extending in the longitudinal direction of the main body 10 from the vicinity of the second contact surface 31 y toward the main body 10 is formed in the main portion 31 of the cap 30. This elastic claw 37 is disposed adjacent to the through hole 36 and closer to the inside of the through hole 36. This elastic claw 37 can be elastically deformed in the direction of arrow A in FIG. 9 (direction perpendicular to the longitudinal direction of the main body 10, indoor / outdoor direction).

  As shown in FIG. 8, the elastic claw 37 has a guide surface 37a and a notch 37b (concave portion) arranged in the vertical direction (the direction perpendicular to the longitudinal direction of the main body 10 and the elastic deformation direction of the elastic claw 37). is doing. In this embodiment, the guide surface 37a is located on the upper side, and the notch 37b is located on the lower side.

  When viewed from the longitudinal direction of the main body 10, the guide surface 37 a is in a position overlapping the upper portion of the through hole 36. The notch 37 b is located at a position overlapping the locking claw 46 of the screw hole member 40 when viewed from the longitudinal direction of the main body 10.

  As shown in FIG. 9, a locking surface 37 c that is substantially orthogonal to the longitudinal direction of the main body 10 is formed at the end of the cutout 37 b of the elastic piece 37 on the main body 10 side (front end side).

  As shown in FIGS. 7 and 8, the cap 30 is formed with various protrusions protruding in the longitudinal direction toward the main body 10, and these protrusions are collectively indicated by reference numeral 33. These protrusions 33 enter a space (including the ventilation passage 13) surrounded by the mold members 11 and 12 of the main body 10 to position the cap 30 relative to the main body 10 and prevent rotation.

  The cap 30 is attached to the left and right ends of the main body 10 in which the opening / closing means 20 is previously incorporated and the screw hole member 40 is fixed. As shown in FIGS. 9A and 9B, when the cap 30 is brought close to the screw hole member 40, the distal end portion of the elastic claw 37 is guided by the guide surface 46 b of the locking claw 46 of the screw hole member 40, so that the indoor side When the cap 30 is further pushed in, the locking claw 46 enters the notch 37b of the elastic claw 37, and the elastic claw 37 returns to its original shape. In this state, the locking surface 37c of the elastic claw 37 and the locking surface 46a of the locking claw 46 are locked to each other, whereby the cap 30 is prevented from coming off, and the mounting operation of the cap 30 is completed.

As described above, the screw 30 is not required to be screwed when the cap 30 is attached, and the cap 30 can be simply pushed toward the main body 10, so that workability is good.
If the screw hole member 40 is not fixed to the main body 10, the cap 30 cannot be attached to the main body 10, so that forgetting to attach the screw hole member 40 can be reliably prevented.

  After the ventilation device 5 is assembled by attaching the cap 30, for example, an operation test of the opening / closing plate 22 is performed. If there is a defect in this test, it can be disassembled and the components can be repaired or replaced. More specifically, as shown in FIG. 10, the cap 30 is removed from the main body 10 using the release pin 60. The release pin 60 has a rectangular cross section, and its tip end is tapered. Hereinafter, the removal work of the cap 30 will be described in the order of processes.

As shown in FIGS. 10A and 10B, when the release pin 60 is inserted into the upper portion of the through hole 36 of the cap 30, the tip end of the release pin 60 comes into contact with the guide surface 37 a of the elastic claw 37.
When the release pin 60 is further pushed in, as shown in FIG. 10C, the tip of the release pin 60 slides on the guide surface 37a of the elastic claw 37, and at this time, the elastic claw 37 is elastically deformed toward the indoor side. In this embodiment, since the release pin 60 advances while contacting the side surface of the screw hole member 40, the release pin 60 is maintained in a straight state without being elastically deformed in the outdoor direction.

  As shown in FIG. 10D, when the release pin 60 is further pushed in, the tip portion thereof passes through the guide surface 37a of the elastic claw 37, and the elastic deformation amount of the elastic claw 37 is maximized, so that the cutout 37b of the elastic claw 37 is obtained. The locking claw 46 of the screw hole member 40 comes off, and the locked state is released. Note that the distal end portion of the release pin 60 may be displaced to the outdoor side by displacing the proximal portion of the release pin 60 to the outdoor side, and the elastic deformation amount of the elastic claw 37 may be further increased.

  Next, the cap 30 is removed from the main body 10 by pulling out the cap 30 with the release pin 60 inserted into the cap 30. Further, the screw 50 can be loosened to remove the screw hole member 50 from the main body 10. After repairing or replacing the defective part, reassemble as described above.

  The window shoji 1 incorporating the ventilation device 5 is manufactured at a construction site or factory. Under the present circumstances, the upper end part of the vertical scissors 2 and 3 is fixed to the both ends of the ventilator 5 in the state which fitted the obturator body entraining part 11a of the ventilator 5. Specifically, the screw 52 (main screw) is inserted from a through hole (not shown) formed in the upper end portion of the vertical rod 2. The screw 52 passes through the through hole 35 of the cap 30 and reaches the screw hole 42 a of the screw hole member 40. When the screw 52 is screwed, the screw 52 is screwed while tapping the screw hole 42a. Thereby, the ventilator 5 as an upper rod is fixed to the upper ends of the vertical rods 2 and 3.

  In the ventilator 5 having the above-described configuration, when viewed from the longitudinal direction of the main body 10, even when screwed to the vertical rods 2 and 3 at a position overlapping the horizontal portion 13 b of the ventilation passage 13 of the main body 10, Instead of forming the screw hole portion facing the portion 13b in the main body 10, the screw hole members 40 are attached to both ends of the main body 10, so that the horizontal dimension of the horizontal portion 13b can be increased without increasing the vertical dimension of the horizontal portion 13b. A sufficient cross-sectional area can be secured, and the finding H of the ventilation device 5 can be reduced.

The present invention is not limited to the above embodiment, and various forms can be adopted. For example, the screw hole member 40 is provided with a pair of left and right locking claws 46 for left-right compatibility, but the number of locking claws 46 may be one.
The locking claw 46 may be formed on the side surface on the outdoor side of the screw hole member 40, or may be formed in another region on the outer surface of the screw hole member.

The screw hole member 40 may be fixed to the end portion of the first mold member 11. The screw hole member 40 may be fixed to any surface extending in the longitudinal direction of the main body and facing the ventilation passage 13 at the end of the main body 10.
Instead of or in addition to the guide surface of the locking claw of the screw hole member 40, an inclined guide surface that hits the locking claw may be formed at the tip of the elastic claw.

A female screw may be formed in advance in the screw hole of the screw hole member. The screw hole member may be made of metal such as steel harder than aluminum.
The ventilator main body includes all the one constituted by one or a plurality of extrusion mold members.

The cap may be attached to only one of the left and right ends of the main body. In this case, the locking claw may be formed only on the screw hole member corresponding to the cap.
The ventilator of the present invention can also be applied to a separate upper cage type. In this case, the shoji body swallowing portion is formed on the lower side, and the fitting portion to be fitted on the upper arm of the window shoji is formed on the upper side.

DESCRIPTION OF SYMBOLS 1 Window shoji 2, 3 Vertical shaft 4 Shoji body 5 Ventilation apparatus 9 Rail 10 Main body 13 Ventilation passage 30 Cap 35 Through hole 36 for screw insertion Through hole 37 for insertion of release pin Elastic claw 37a Guide surface 37b Notch (recess)
37c Locking surface 40 Screw hole member 42 Screw hole portion 42a Screw hole 46 Locking claw 46a Locking surface 46b Guide surface 52 Screw (main screw)
60 Release pin

Claims (4)

A main body having a ventilation passage made of an extruded mold extending along the upper edge of the window shoji to communicate the indoor and the outdoor, an opening / closing means for opening and closing the ventilation passage of the main body, and screw hole members fixed to the left and right ends of the main body, respectively. And a resin cap attached to at least one of the left and right ends of the main body and having a main part covering the corresponding screw hole member,
The ventilation passage is formed between the pair of left and right screw hole members, and when viewed from the longitudinal direction of the main body, at least a part of these screw hole members and the ventilation passage overlap,
The screw hole member has a screw hole extending in the longitudinal direction of the main body, and the main portion of the cap has a through hole for inserting a screw. The through hole overlaps the screw hole when viewed from the longitudinal direction of the main body. In position
A main screw penetrating the upper ends of the left and right vertical rods of the window shoji is fixed to the left and right vertical rods by screwing into the screw holes of the screw hole member. In the cap, the main screw is used for inserting the screw. In a ventilator that passes through a through hole,
At least the screw hole member corresponding to the cap has a locking claw on its outer surface, the cap has an elastic claw extending in the longitudinal direction of the main body toward the main body, and pushes the cap toward the main body. At this time, the elastic claw hits the locking claw of the screw hole member and elastically deforms in a direction perpendicular to the longitudinal direction of the main body, and when the cap is further pushed in, the elastic claw returns to its original shape and is A ventilator characterized in that it is locked so that the cap is attached to the body. The elastic piece has a guide surface and a recess arranged in a longitudinal direction of the main body and a direction orthogonal to the elastic deformation direction of the elastic piece, and the guide surface is inclined with respect to the longitudinal direction of the main body, The recess has a locking surface on the tip side,
In the locked state of the locking claw of the elastic claw and the screw hole member, the locking claw enters the recess of the elastic claw and locks to the locking surface,
Further, the main part of the cap has a through hole for inserting a release pin adjacent to the elastic claw, and the through hole is located at a position overlapping the guide surface when viewed from the longitudinal direction of the main body. Insert the release pin from the hole, put its tip on the guide surface of the elastic piece, and push the release pin further to elastically deform the elastic piece to release the locked state with the locking claw of the screw hole member The ventilation apparatus according to claim 1, wherein:   3. The ventilation according to claim 1, wherein the locking claw is formed on a side surface of the screw hole member on the indoor side or the outdoor side, and the elastic piece of the cap is elastically deformable in an indoor / outdoor direction. apparatus.   A pair of the locking claws are formed apart from each other in the longitudinal direction of the main body, the locking claws are symmetrical, and have locking surfaces orthogonal to the longitudinal direction of the main body on opposite sides, on the opposite side. The ventilation apparatus according to claim 1, further comprising a guide surface that is inclined with respect to a longitudinal direction of the main body.

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