JPH10266992A - Ventilation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ventilation device that is surely securable to the wall surface of a building even in the case where a sleeve pipe installed in a ventilating passage of this building has not its proper length. SOLUTION: A ventilation device 1 is equipped with a casing 8 being inserted into a ventilating passage 3 from one end side 15 and having a blower 4 on the inside, a decorative frame 6 surrounding the other end side 13 of this casing 8, and a connecting member 7 installed in space between the casing 8 and the decorative frame 6, respectively. This casing 8 has a plate spring clamping hole 16 clamping a plate spring 28 to the other end side 15 and also a tapped hole 14 at the other end side 13, respectively. Likewise, the decorative frame 6 has another tapped hole 22 in an end part 21. The connecting member 7 is provided with both inner and outer circumferential shells 23 and 24. The inner circumferential shell 23 has an oblong hole 26 and the outer circumferential shell 24 has another oblong hole 27, respectively. A wing bolt 32 passes through the tapped hole 22 and the oblong hole 27, clamping the decorative frame 6 and the connecting member 7 tight enough. Likewise another wing bolt 34 passes through the oblong hole 26 and the tapped hole 14, clamping the casing and the connecting member 7 tightly as well.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilator fixed to a wall of a building and forcibly flowing air through a ventilation passage connecting one side and the other side of the wall of the building.

[0002]

2. Description of the Related Art Conventionally, for example, a ventilation device for forcibly discharging indoor air to the outside of a room is fixed to a sleeve tube provided on an inner peripheral surface of a ventilation passage on a wall of a building. Air is forcibly circulated inside.

[0003] As illustrated in FIG.
Reference numeral 0 denotes a casing 53 inserted into the ventilation passage 3 of the wall surface 2 of the building from one end 53a, and a decorative frame 52 provided on the other end 53b of the casing 53.

[0004] The casing 53 is formed in a tubular shape having both ends opened, and a motor 5 is provided inside one end 53a thereof.
5 and a fan 54 mounted on the rotating shaft of the motor 55. The motor 55 has a function of forcibly flowing air from the opening on the other end 53b to the opening on the one end 53a through the inside of the casing 53. The blower 51 is constituted by the motor 55 and the fan 54.

The decorative frame 52 is formed to have a size surrounding the casing 53 from one side 5 of the wall surface 2.
The casing 53 is fixed to the casing 53 by screws 56 and the like.

On the outer peripheral wall of the casing 53 which is inserted into the ventilation passage 3 of the wall surface 2, a fixing metal member 58 having an elastic shape and having a bent portion 57 when viewed from the side is fixed. Have been.

The fixing bracket 58 is inserted into the ventilation passage 3 of the wall surface 2, and the bent portion 57 is elastically pressed against the inner peripheral surface of the sleeve tube 31 provided on the inner peripheral surface of the ventilation passage 3. Thus, the ventilation device 50 is fixed to the wall surface 2.

However, the above-described conventional ventilation device 50 is
When the length of the sleeve tube 31 is made short in construction of the building, for example, when the sleeve tube 31 is formed short, the bent portion 57 of the fixing bracket 58 does not contact the inner peripheral surface of the sleeve tube 31. In some cases, as shown in a two-dot chain line Q in FIG.

In such a case, once the wall 2
It is necessary to take out the sleeve tube 31 inserted into the ventilation passage 3 of the above and to insert the sleeve tube 31 having the optimum length again, so that the labor and the like during construction are increased and the work efficiency tends to decrease. Was.

[0010]

As described above, in the conventional ventilation device 50, it is necessary to use the sleeve tube 31 having an optimum length depending on the thickness of the wall surface 2 of the building to be fixed. This has tended to reduce the work efficiency when constructing objects.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a case where a sleeve tube inserted into a ventilation passage provided in a building does not have an appropriate length. Another object of the present invention is to provide a ventilation device that is reliably fixed to a wall surface of a building by reliably pressing a fixing member elastically against an inner peripheral surface of a sleeve tube.

[0012]

According to a first aspect of the present invention, there is provided a ventilating apparatus comprising: a tubular casing forming an air flow passage; and one end of the casing. A blower provided on the side, a decorative frame provided on the other end side of the casing, and a fixing member formed of an elastic member provided on an outer peripheral wall of the casing and projecting in an outer peripheral direction, and provided on a wall surface of the building. The decorative frame is provided on the inner peripheral surface of the sleeve tube by elastically pressing the fixing member against the inner peripheral surface of the sleeve tube by inserting the casing from one end thereof into a ventilation passage having a sleeve tube on the inner peripheral surface. In a ventilator fixed in a state of contact with the casing, a connecting member is provided between the casing and the decorative frame, and the connecting member is adjusted so that the casing and the decorative frame can move in the axial direction of the ventilation passage. It is characterized in that a regulating means that.

According to a second aspect of the present invention, in the ventilating apparatus according to the first aspect, the adjusting means includes an elongated hole provided in the cylindrical connecting member along the axial direction thereof, and a casing. And a fastening member provided in the decorative frame and inserted into the elongated hole and fixed at an arbitrary position of the elongated hole.

According to a third aspect of the present invention, there is provided the ventilator according to the second aspect, wherein a scale is formed near each of the long holes provided in the connecting member.

According to a fourth aspect of the present invention, in the ventilator according to the first aspect, the adjusting means is provided on an inner peripheral surface of the cylindrical connecting member and is provided on an outer peripheral surface of the casing. A female screw part to be screwed with the male screw part, and a male screw part provided on the outer peripheral surface of the cylindrical connecting member and screwed with the female screw part provided on the inner peripheral surface of the decorative frame, and a casing for the connecting member. In addition, the casing and the decorative frame can be moved in the axial direction of the ventilation passage by the screwing amount of the decorative frame.

According to a fifth aspect of the present invention, in the ventilating apparatus according to the first aspect, the fixing member comprises a leaf spring having at least one end fixed to the casing.
It is characterized in that it has a bent portion protruding toward the inner peripheral surface of the sleeve tube in the middle of the leaf spring.

According to a sixth aspect of the present invention, in the ventilator according to the fifth aspect, the bent portion of the leaf spring protrudes toward the inner peripheral surface of the sleeve tube near the bent portion of the plate spring. The invention is characterized in that a claw portion that comes into pressure contact with the peripheral surface is provided integrally.

According to a seventh aspect of the present invention, in the ventilator of the first aspect, the outer peripheral wall of the casing has a plurality of leaf spring fixing holes spaced apart in the axial direction. The leaf spring is selectively fixed to these leaf spring fixing holes.

The ventilating apparatus according to the present invention according to claim 8 is the ventilating apparatus according to claim 1, wherein the end located at the innermost position of the ventilation passage of the casing is convex to the rear side of the ventilation passage and It is characterized in that a plurality of leaf spring fixing projections having different amounts of protrusion from the end are provided, and the leaf spring is selectively fixed to these leaf spring fixing projections.

As a result of taking the above-described measures, the following operation occurs. The ventilation device according to claim 1, wherein a connecting member is provided between the casing and the decorative frame, and the connecting member includes an adjusting means capable of moving the casing and the decorative frame along the axial direction of the ventilation passage. Provided. For this reason, it is possible to reliably press the fixing member provided on the outer peripheral wall of the casing elastically against the inner peripheral surface of the sleeve tube provided on the inner peripheral surface of the ventilation passage.

Further, by providing the adjusting means, it is possible to surely move the decorative frame to a state in which the decorative frame is in contact with the wall surface with the movement of the casing. In the ventilating device according to claim 2, when fixing the casing and the connecting member, the vent is inserted into the elongated hole provided in the connecting member and the casing and fixed at an arbitrary position of the elongated hole. Since a possible fastening member is used, the casing can be easily moved in the axial direction of the ventilation passage by changing the position where the fastening member is fixed. For this reason, it is possible to reliably press the fixing member provided on the outer peripheral wall of the casing elastically against the inner peripheral surface of the sleeve tube provided on the inner peripheral surface of the ventilation passage.

Similarly, when the decorative frame and the connecting member are fixed to each other, similarly, a long hole provided in the connecting member and a fastening member which is inserted into the long hole and can be fixed at an arbitrary position of the long hole. The decorative frame can be easily moved in the axial direction of the ventilation passage by changing the position where the fastening member is fixed. For this reason, it is possible to surely move the decorative frame to a state in which the decorative frame is in contact with the wall surface with the movement of the casing.

In the ventilating device according to the third aspect, since the scale is formed near the long hole provided in the connecting member, it is possible to more appropriately move the decorative frame according to the movement of the casing. Becomes

According to a fourth aspect of the present invention, when the casing and the connecting member are fixed, a male screw portion provided on the outer peripheral surface of the casing and a female screw portion provided on the inner peripheral surface of the connecting member. Is used, the casing can be easily moved along the axial direction of the ventilation passage by adjusting the screwing amount of the casing into the connecting member. For this reason, it is possible to reliably press the fixing member provided on the outer peripheral wall of the casing elastically against the inner peripheral surface of the sleeve tube provided on the inner peripheral surface of the ventilation passage.

Similarly, when fixing the decorative frame and the connecting member, a female screw portion provided on the inner peripheral surface of the decorative frame,
Since the external thread provided on the outer peripheral surface of the connecting member is used, the decorative frame can be easily moved in the axial direction of the ventilation passage by adjusting the screwing amount of the decorative frame into the connecting member. For this reason, it is possible to surely move the decorative frame to a state in which the decorative frame is in contact with the wall surface with the movement of the casing.

According to a fifth aspect of the present invention, the fixing member comprises a leaf spring having at least one end fixed to the casing and having a bent portion in the middle.
Therefore, when the casing is inserted into the ventilation passage, the leaf spring is elastically pressed against the inner peripheral surface of the sleeve tube.

In the ventilating device according to the sixth aspect, a claw portion is provided near the bent portion of the leaf spring from the one end fixed to the casing along the bent portion. Therefore, when the casing is inserted into the ventilation passage, the tip of the claw portion comes into contact with the inner peripheral surface of the sleeve tube, and the leaf spring elastically presses the inner peripheral surface of the sleeve tube. Therefore,
The pawl portion locks the casing on the inner peripheral surface of the sleeve tube.

The ventilating device according to the seventh aspect has a plurality of leaf spring fixing holes spaced apart in the axial direction on the outer peripheral wall of the casing. Therefore, the fixing position of the leaf spring can be arbitrarily selected according to the length of the sleeve tube.

In the ventilating device according to the eighth aspect, a plurality of leaf spring fixing projections having different protrusion amounts from the end portion are provided on the end portion of the casing. Therefore, the fixing position of the leaf spring can be arbitrarily selected according to the length of the sleeve tube.

[0030]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of a ventilation device 1 attached to a wall 2 of a building, FIG. 2 is a perspective view of the device, and FIG. 3 is an exploded perspective view.

As shown in FIG. 1, a ventilation device 1 comprises a sleeve pipe 3 provided on an inner peripheral surface of a ventilation passage 3 on a wall 2 of a building.
1, a casing 8 inserted into the ventilation passage 3 from one end 15, and a decorative frame 6 provided on the other end 13 of the casing 8 and surrounding the wall 5 from one side 5.
And a connecting member 7 provided between the casing 8 and the decorative frame 6.

The casing 8 is formed in a cylindrical shape having both ends opened as shown in FIG. 3, and as shown in FIG.
Inside the one end 15, the motor 10 and this motor 10
And a fan 9 mounted on the rotating shaft of By rotating the fan 9 using the motor 10,
The air is forced to flow through the inside of the casing 8 from the opening 11 on the other end 13 to the opening 12 on the one end 15. The motor 10 and the fan 9
Constitutes the blower 4 described in this specification.

As shown in FIGS. 1 and 3, a screw hole 1 is formed in the other end 13 of the casing 8 surrounded by the decorative frame 6.
4 are provided. As shown in FIG. 1, a leaf spring fixing hole 16 for fixing a leaf spring 28, which is an example of a fixing member described later, is provided at one end 15 of the casing 8 inserted into the ventilation passage 3. I have.

As shown in FIGS. 1 and 3, the decorative frame 6 integrally includes a disk portion 17 formed in a disk shape and an outer peripheral portion 18 formed in one direction from the outer periphery of the disk portion 17. In preparation. As shown in FIG. 1, the outer peripheral portion 18 is formed so as to extend in the same direction and to be substantially parallel to each other in all cross sections perpendicular to the disk portion 17.

At about the center of the disk portion 17 of the decorative frame 6, a flow pipe 19 for flowing air is integrally connected. The circulation pipe 19 extends from the disk portion 17 in the same direction as the outer peripheral portion 18 and has the end portion 2 which is furthest from the disk portion 8.
0 is formed smaller than the inner diameter of the casing 8 to supply air into the casing 8. When the decorative frame 6 is attached to the wall 2 of the building,
A screw hole 22 is provided in an end 21 close to the wall surface 2.

As shown in FIGS. 1 and 3, the connecting member 7 integrally includes an inner peripheral shell 23 in contact with the casing 8 without a gap and an outer peripheral shell 24 in contact with the outer peripheral portion 18 of the decorative frame 6 without a gap. It is formed in a tubular shape. The inner shell 23
And the outer shell 24, when attached to the wall surface 2,
Elongated holes 26 and 27 extending along the axial direction are respectively formed. The elongated holes 26 and 27, together with butterfly bolts 32 and 34 described later, constitute an adjusting means described in this specification.

The leaf spring fixing hole 1 of the casing 8
6, one end 29 of a leaf spring 28 which is made of an elastic member and is an example of a fixing member is fixed. The leaf spring 28 is made of steel or the like, and its longitudinal direction is fixed along the flow direction of air flowing through the casing 8.

When the one end portion 29 is fixed to the leaf spring fixing hole 16, the leaf spring 28 has a bent portion 30 protruding toward the inner peripheral surface of the sleeve tube 31 when viewed from the side at an intermediate portion thereof. Are formed in a rectangular shape. Thus, the leaf spring 28 is provided on the outer peripheral wall of the casing 8 and protrudes in the outer peripheral direction.

The bent portion 30 of the leaf spring 28 contacts the inner peripheral surface of a sleeve tube 31 provided inside the ventilation passage 3 of the wall surface 2, and the bent portion 30 is connected to the casing 8.
Is formed so as to shrink in a direction approaching the vertical axis. Also,
When the leaf spring 28 contracts as described above, it generates an elastic restoring force and is pressed against the inner peripheral surface of the sleeve tube 31.

With the configuration described above, the ventilation device 1 is
As shown in FIG. 3, the butterfly bolt 32 passes through the screw hole 22 of the decorative frame 6 and the elongated hole 27 of the outer peripheral shell 24 of the connecting member 7 and is screwed into the nut 33 so that the decorative frame 6 and the connecting member 7 Are fixed to each other, and the butterfly bolt 34
Is screwed into the nut 35 through the elongated hole 26 of the inner peripheral shell 23 of the connecting member 7 and the screw hole 14 of the casing 8 so that the connecting member 7 and the casing 8 are fixed to each other. 2 will be assembled. Note that the butterfly bolts 32 and 34 constitute a fastening member described in this specification.

When the casing 8 is inserted from one end 15 of the casing 8 into the ventilation passage 3 provided on the wall 2 of the building, the leaf spring 28 is connected to the sleeve tube 31 as described above. The inner peripheral surface is elastically pressed and fixed to the wall surface 2.

At this time, as shown by the solid line in FIG. 1, the sleeve tube 31 provided on the inner peripheral surface of the ventilation passage 3 on the wall surface 2 of the building is too short and the bent portion 30 of the leaf spring 28 Even when it does not come into contact with the inner peripheral surface of 31, the position passing through the long holes 27, 26 of the butterfly bolts 32, 34 can be changed. As a result, the connecting member 7 and the casing 8 can be moved in the axial direction of the ventilation passage 3 as shown by a two-dot chain line R in the drawing, so that the bent portion 30 is reliably formed on the inner peripheral surface of the sleeve tube 31. The ventilation device 1 can be fixed in contact.

When the casing 8 is moved in the axial direction of the ventilation passage 3 as described above, noise and the like during use of the ventilation device 1 are suppressed and the communication between the fan 9 and the flow pipe 19 is suppressed. In order to keep the geometric relationship constant,
It is desirable to move the decorative frame 6 in the same direction and in the same direction as the amount of movement of the casing 8. At this time, the decorative frame 6 can be moved to a state where the decorative frame 6 comes into contact with the wall surface 2.

When the decorative frame 6, the casing 8 and the connecting member 7 are fixed to each other, the above-described slots 26, 2
7, without using the threaded portions 3 as shown in FIG.
6, 37, 38 and 39 are provided, and the screw portions 36 and 3 are provided.
7, 38, 39 may be fixed by screwing.

In FIG. 4, a male screw portion 36 is provided on the outer peripheral surface of the other end 13 surrounded by the decorative frame 6 of the casing 8, and the female screw portion 3 is provided on the inner peripheral surface of the outer peripheral portion 18 of the decorative frame 6.
7 are provided. In addition, a female screw portion 38 is provided on the inner peripheral surface of the inner peripheral shell 23 of the connecting member 7, and a male screw portion 39 is provided on the outer peripheral surface of the outer peripheral shell 24 of the connecting member 7.

The casing 8 and the decorative frame 6 are rotated with respect to the connecting member 7 along the arrow K shown in FIG. 4 so that the female screw portion 38 and the male screw portion 36 are screwed together, and The casing 8, the decorative frame 6, and the connecting member 7 are fixed to each other by screwing the portion 39 and the female screw portion 37 together.

In the case where the sleeve tube 31 is too short and the bent portion 30 of the leaf spring 28 does not come into contact with the inner peripheral surface of the sleeve tube 31, if the casing 8 and the decorative frame 6 By adjusting the screwing amount, the casing 8 can be moved in the axial direction of the ventilation passage 3. Therefore, the bent portion 30 is reliably brought into contact with the inner peripheral surface of the sleeve tube 31, and the ventilator 1 can be reliably fixed to the wall surface 2.

As shown in FIG. 5, the leaf spring 28 may be provided with a claw portion 40 in order to further increase the adhesion between the inner peripheral surface of the sleeve tube 31 and the casing 8. When the claw portion 40 is fixed to the outer peripheral wall of the casing 8, a first cut 41 provided in the vicinity of the other end 13 of the casing 8 of the bent portion 30, and the first cut 41 And a second cut 42 provided up to the bent portion 30 in the longitudinal direction of the leaf spring 28. The claw portion 40 is formed along a surface extending from the one end 29 fixed to the leaf spring fixing hole 16 of the casing 8 to the bent portion 30.

By providing the above-described claw portion 40,
When the casing 8 is inserted into the ventilation passage 3 from one end 15, the leaf spring 28 is elastically pressed against the inner peripheral surface of the sleeve tube 31, and the claw portion 40 connects the casing 8 to the inside of the sleeve tube 31. It will be locked to the peripheral surface.

As shown in FIG. 6, in order to keep the geometrical positional relationship between the fan 9 and the decorative frame 6 always constant, the elongated holes 26 and 27 provided in the connecting member 7 are used.
May be formed in the vicinity of.

Further, in order to securely contact the bent portion 30 of the leaf spring 28 with the inner peripheral surface of the sleeve tube 31, the mounting position of the leaf spring 28 is changed as shown in FIGS. You may do it.

7 and 8, a leaf spring fixing hole 16 for fixing a leaf spring 28 is provided on the outer peripheral wall of the casing 8.
Are formed apart from each other in the axial direction of the casing 8. By arbitrarily selecting from the plurality of formed leaf spring fixing holes 16 and fixing the leaf spring 28, the bent portion 30 of the leaf spring 28 can more reliably abut against the inner peripheral surface of the sleeve tube 31. . Therefore, the ventilation device 1 can be more reliably fixed to the wall surface 2 of the building.

9 and 10, when the ventilating device 1 is fixed to the wall surface 2, the end 44 of the casing 8 located at the farthest side of the ventilation passage 3 projects to the back of the ventilation passage 3. , A plurality of leaf spring fixing protrusions 45 having different protrusion amounts from each other are formed. Tip 4 of these leaf spring fixing projections 45
5a, the one end 29 of the leaf spring 28 is fixed, so that the bent portion 30
Can be brought into contact with the inner peripheral surface of the sleeve tube 31. Therefore, the ventilation device 1 can be more reliably fixed to the wall surface 2 of the building.

[0054]

According to the first aspect of the present invention, a connecting member is provided between the casing and the decorative frame, and the connecting member can move the casing and the decorative frame along the axial direction of the ventilation passage. Adjusting means is provided. For this reason, it is possible to reliably press the fixing member provided on the outer peripheral wall of the casing elastically against the inner peripheral surface of the sleeve tube provided on the inner peripheral surface of the ventilation passage.

Therefore, even when the sleeve tube provided in the ventilation passage provided in the building does not have an optimum length, the ventilation device can be securely fixed to the wall surface of the building.

As a secondary effect, the provision of the adjusting means makes it possible to surely move the decorative frame to a state in which it is in contact with the wall surface with the movement of the casing.

Therefore, the geometric positional relationship between the flow pipe of the decorative frame and the blower can be kept substantially constant, so that noise generated by gas passing through the ventilation device can be suppressed. Become.

According to the second aspect of the present invention, when the casing and the connecting member are fixed, the elongated hole provided in the connecting member and the elongated hole provided in the casing are inserted into an arbitrary position of the elongated hole. Since it uses a fastening member that can be fixed,
By changing the position where the fastening member is fixed, the casing can be easily moved in the axial direction of the ventilation passage. For this reason, it is possible to reliably press the fixing member provided on the outer peripheral wall of the casing elastically against the inner peripheral surface of the sleeve tube provided on the inner peripheral surface of the ventilation passage.

Therefore, even when the sleeve pipe provided in the ventilation passage provided in the building does not have an optimum length, the ventilation device can be securely fixed to the wall surface of the building.

As a secondary effect, when the decorative frame and the connecting member are fixed, similarly, a long hole provided in the connecting member and an arbitrary position of the long hole inserted through the long hole are similarly provided. The decorative frame can be easily moved in the axial direction of the ventilation passage by changing the fixing position of the fastening member. For this reason, it is possible to surely move the decorative frame to a state in which the decorative frame is in contact with the wall surface with the movement of the casing.

Accordingly, the geometric positional relationship between the flow pipe of the decorative frame and the blower can be kept substantially constant, so that noise generated by gas passing through the ventilation device can be suppressed. Become.

According to the third aspect of the present invention, in addition to the effect of the second aspect of the invention. Since the scale is formed in the vicinity of the long hole provided in the connecting member, according to the movement of the casing,
It is possible to more appropriately move the makeup frame.

Therefore, the geometric positional relationship between the flow pipe of the decorative frame and the blower can be kept substantially constant, so that the noise generated by the gas passing through the ventilator can be more reliably suppressed. Becomes possible.

According to the fourth aspect of the present invention, when fixing the casing and the connecting member, the male screw portion provided on the outer peripheral surface of the casing and the female screw portion provided on the inner peripheral surface of the connecting member are used. Therefore, the casing can be easily moved along the axial direction of the ventilation passage by adjusting the screwing amount of the casing into the connecting member. For this reason, it is possible to reliably press the fixing member provided on the outer peripheral wall of the casing elastically against the inner peripheral surface of the sleeve tube provided on the inner peripheral surface of the ventilation passage.

Therefore, even when the sleeve tube provided in the ventilation passage provided in the building does not have an optimum length, the ventilation device can be securely fixed to the wall surface of the building.

As a secondary effect, similarly, when fixing the decorative frame and the connecting member, the female screw portion provided on the inner peripheral surface of the decorative frame and the outer peripheral surface of the connecting member are provided. Since the external thread portion is used, the decorative frame can be easily moved in the axial direction of the ventilation passage by adjusting the screwing amount of the decorative frame into the connection member. For this reason,
With the movement of the casing, it is possible to surely move the decorative frame to a state in which the decorative frame is in contact with the wall surface.

Therefore, the geometric positional relationship between the flow pipe of the decorative frame and the blower can be kept substantially constant, so that the noise generated by the gas passing through the ventilator can be more reliably suppressed. Becomes possible.

According to the fifth aspect of the present invention, in addition to the effects of the first aspect, the fixing member is constituted by a leaf spring having at least one end fixed to the casing and having a bent portion formed halfway. . Therefore, when the casing is inserted into the ventilation passage, the leaf spring is elastically pressed against the inner peripheral surface of the sleeve tube. Therefore, the ventilation device can be securely fixed to the wall surface of the building.

According to the present invention of claim 6, in addition to the effect of the invention of claim 5, a claw portion is provided near the bent portion of the leaf spring from the one end fixed to the casing along the bent portion. For this reason, when the casing is inserted into the ventilation passage,
The tip of the claw portion comes into contact with the inner peripheral surface of the sleeve tube, and the leaf spring is elastically pressed against the inner peripheral surface of the sleeve tube.

[0070] Therefore, the claws lock the casing to the inner peripheral surface of the sleeve tube, so that the ventilator can be more reliably fixed to the wall surface of the building. According to the seventh aspect of the present invention, in addition to the effect of the first aspect of the present invention, since the outer peripheral wall of the casing has a plurality of leaf spring fixing holes spaced apart in the axial direction, the length of the sleeve tube can be reduced. Depending on
The fixing position of the leaf spring can be arbitrarily selected.

Therefore, even when the sleeve tube inserted into the ventilation passage provided in the building does not have an optimum length, the ventilation device can be more reliably fixed to the wall surface of the building.

According to the present invention of claim 8, in addition to the effect of the invention of claim 1, a plurality of leaf spring fixing projections having different amounts of protrusion from the end are provided at the end of the casing.
The fixing position of the leaf spring can be arbitrarily selected according to the length of the sleeve tube.

Therefore, even when the sleeve tube inserted into the ventilation passage provided in the building does not have an optimum length, the ventilation device can be more reliably fixed to the wall surface of the building.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a ventilation device according to an embodiment of the present invention.

FIG. 2 is a perspective view of the ventilation device of the embodiment.

FIG. 3 is an exploded perspective view of the ventilation device of the embodiment.

FIG. 4 is an exemplary sectional view showing a modification of the embodiment;

FIG. 5 is an exemplary perspective view showing a modification of the leaf spring of the embodiment;

FIG. 6 is an exemplary perspective view showing a modification of the connecting member of the embodiment;

FIG. 7 is a cross-sectional view of a part of the ventilation device showing a modification of the embodiment.

FIG. 8 is a perspective view showing a modified example shown in FIG. 7;

FIG. 9 is a cross-sectional view of a part of the ventilation device showing a modification of the embodiment.

FIG. 10 is a perspective view showing a modified example shown in FIG. 9;

FIG. 11 is a sectional view of a conventional ventilation device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Ventilation apparatus 2 ... Wall surface 3 ... Ventilation passage 4 ... Blower 6 ... Decorative frame 7 ... Connecting member 8 ... Casing 13 ... Other end side 15 ... One end side 16 ... Leaf spring fixing hole 26 ... Slot (adjustment means) 27 ... Long hole (adjusting means) 28 ... leaf spring (fixing member) 29 ... one end portion 30 ... bent portion 31 ... sleeve tube 32 ... butterfly bolt (tightening member) 34 ... butterfly bolt (tightening member) 36 ... male screw portion 37 ... female screw portion 38: Female thread 39: Male thread 40: Claw 43: Scale 44: End 45: Leaf spring fixing projection

Claims (8)

[Claims] 1. A cylindrical casing forming an air flow passage, a blower provided at one end of the casing, a decorative frame provided at the other end of the casing, and provided on an outer peripheral wall of the casing. And a fixing member formed of an elastic member protruding in the outer peripheral direction, the casing is inserted from one end side into a ventilation passage provided on the wall surface of the building, and having a sleeve tube on the inner peripheral surface, and the fixing member is In a ventilator for fixing the decorative frame in a state of being in contact with a wall surface by elastically pressing against an inner peripheral surface of the sleeve tube, a connecting member is provided between the casing and the decorative frame, Adjusting means for adjusting the casing and the decorative frame so as to be movable in the axial direction of the ventilation passage. 2. An adjusting means, comprising: an elongated hole provided in a cylindrical connecting member along an axial direction thereof; and a casing and a decorative frame, which are inserted through the elongated hole and fixed at an arbitrary position of the elongated hole. 2. A fastening member comprising a possible fastening member.
The described ventilation system. 3. The ventilation device according to claim 2, wherein a scale is formed near each of the long holes provided in the connecting member. 4. An adjusting means is provided on an inner peripheral surface of a cylindrical connecting member, and is provided on an outer peripheral surface of the cylindrical connecting member. A female screw part provided on the inner peripheral surface of the decorative frame and a male screw part to be screwed together, and the casing and the decorative frame can be moved in the axial direction of the ventilation passage by screwing the casing and the decorative frame into the connection member. The ventilation device according to claim 1, wherein: 5. The fixing member comprises a leaf spring having at least one end fixed to the casing, and has a bent portion protruding toward the inner peripheral surface of the sleeve tube at an intermediate portion of the leaf spring. The ventilation device according to claim 1. 6. A claw portion protruding toward an inner peripheral surface of the sleeve tube and integrally pressing the inner peripheral surface of the sleeve tube in the vicinity of the bent portion of the leaf spring. 5
The described ventilation system. 7. An outer peripheral wall of the casing has a plurality of leaf spring fixing holes spaced apart in the axial direction, and the leaf springs are selectively fixed to these leaf spring fixing holes. The ventilation device according to claim 1, wherein 8. A plurality of leaf spring fixing projections, which project from the end of the casing at the innermost position of the ventilation passage and project from the end of the ventilation passage and have different amounts of protrusion from the end, are provided. The ventilator according to claim 1, wherein a leaf spring is selectively fixed to the ventilator.