JP3824946B2 - Ventilation equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ventilator, and more particularly to a ventilator provided on a wall surface of a high-rise building or the like.
[0002]
[Background]
Conventionally, in high-rise buildings, etc., there are cases where fitted windows are used in consideration of safety etc., but natural ventilation is not possible if the windows cannot be opened. Ventilation holes communicating with each other were sometimes formed. A ventilation lid that opens and closes the ventilation hole is attached to the ventilation hole so that rainwater or the like is not normally blown into the room.
As a method for driving the ventilation lid of the natural ventilation port, a method using a spring is usually the mainstream. That is, it is general that the ventilation lid locked by the latching device is biased so as to be opened by a spring, and when the latching device is released, the ventilation lid is opened by the biasing force of the spring.
[0003]
However, when only the spring is provided, the speed at which the lid opens can not be controlled, and there is a problem that the lid opens suddenly and noise is generated or an impact is applied.
For this reason, as disclosed in JP-A-11-62427 and JP-A-2001-262952, a torque hinge component is separately attached to generate a resistance force against the biasing force of the spring, and the lid can be moved at a relatively low speed. Something that is designed to open smoothly has also been developed.
[0004]
[Problems to be solved by the invention]
However, such a combination of a spring and a torque hinge component that opens the lid requires a space for assembling these components, resulting in a problem that the space cannot be saved and the design is lowered. . That is, since the spring and the torque hinge part are provided at the end of the lid and are arranged outside the lid, a space for arranging the torque hinge part and the like is required in addition to the opening space of the ventilation hole. There is a problem that it cannot be achieved. Further, since the torque hinge part and the like are arranged outside the lid, there is a problem that even when the ventilation lid is closed, the torque hinge part and the like are exposed to the indoor side and the design is deteriorated. Further, it is conceivable to cover the torque hinge parts with a cover material, but there is a problem that the number of parts increases and the cost increases accordingly.
Furthermore, when a spring and a torque hinge component are combined, the urging force of the spring is reduced by repeated use, so that there is a problem that the lid is difficult to open and the operability is lowered when used for many years.
[0005]
The object of the present invention is to provide a ventilator that can improve space efficiency, prevent deterioration of designability, maintain the force for opening the lid substantially constant even after long use, and prevent deterioration of operability. There is to do.
[0006]
[Means for Solving the Problems]
  The ventilator according to the present invention is a ventilator that is provided in a ventilating hole having an outdoor opening that is open to the outside of a building and an indoor opening that is open to the indoor side, and opens and closes the ventilating hole. A ventilation lid storage part provided at the indoor side opening portion, a ventilation lid provided to be openable and closable with respect to the ventilation lid storage part, and a gas damper for opening and closing the ventilation lid, The cylinder side and piston rod side ends are connected to the ventilation lid and the ventilation lid storage part via ball joints, respectively, and the space between the ventilation lid and the ventilation lid storage part is arranged in the direction of the rotation axis of the ventilation lid. Arranged almost alongIn addition, two gas dampers are provided, and each gas damper is provided at a position that is plane-symmetric with respect to a plane orthogonal to the rotation axis of the ventilation lid.It is characterized by this.
  According to the present invention, since the force is applied in the direction in which the ventilation lid opens with respect to the ventilation lid housing portion by the biasing force of the gas damper, for example, a latch for locking the ventilation lid to the ventilation lid housing portion, etc. When the latching device is released, the ventilation lid is opened by the biasing force of the gas damper.
  At this time, since the ventilation lid is configured to be opened by the gas damper, the opening / closing speed of the ventilation lid can be adjusted, and the smooth opening / closing can be achieved. For this reason, generation | occurrence | production of the metal sound like the case where it opens and closes with a spring can be prevented.
  Further, as compared with the case where the spring and torque hinge parts are provided, only the gas damper needs to be provided, so that the number of parts can be reduced and the cost can be reduced. In addition, since the gas damper can be arranged in the space between the ventilation lid and the ventilation lid housing part, it is not necessary to arrange the gas damper outside the ventilation lid as in the case of using the spring and torque hinge parts, and the space efficiency can be improved. At the same time, if the ventilation lid is closed, the gas damper is not exposed to the outside, so that the design can be improved.
  Further, the gas damper has higher durability than the spring, and can maintain its urging force constant even when used for a long period of time, thereby preventing a decrease in operability.
When only one gas damper is provided, a force is applied to the ventilation lid only in one direction by the gas damper. In particular, in the present invention, since the gas damper is substantially along the rotation axis, unlike the gas damper arranged along the general opening / closing direction, a force is also applied to the ventilation lid in the direction of the rotation axis. It will be.
For this reason, when the ventilation lid is pivotally connected to the ventilation lid storage portion with a shape hinge or the like, the ventilation lid may be displaced in the direction of the rotation axis, and this movement is restricted. It is necessary to adopt. On the other hand, if two gas dampers are arranged symmetrically with respect to the plane orthogonal to the rotation axis, the force applied to the ventilation lid by the gas dampers in the direction of the rotation axis cancels out in the opposite direction. A force in only the opening / closing direction will be applied to the lid substantially, and the ventilation lid can be opened and closed smoothly, and there is no need to adopt a structure that restricts the movement of the ventilation lid in the rotation axis direction, Since the shape hinges can be used as they are, the structure can be simplified.
[0007]
In the present invention, since both ends of the gas damper are connected by a ball joint, the three-dimensional movement of the gas damper can be allowed, and the gas damper can be disposed substantially along the rotation axis direction of the lid. . For example, the gas damper axial direction (cylinder or piston rod axial direction) is the same direction as the rotation axis of the ventilation lid (both directions are parallel and the crossing angle is 0 degrees), and the crossing angle in each direction is 30 degrees or less. Etc.
That is, a normal gas damper provided for opening and closing a door or the like is arranged along the opening and closing direction of the door, so that when the door is opened and closed, there is no movement in the direction of the rotation axis of the door. Only movement within the orthogonal plane, that is, only two-dimensional movement. For this reason, a general gas damper cannot be arranged along a direction different from the opening and closing direction that involves a three-dimensional movement.
On the other hand, the gas damper according to the present invention allows a three-dimensional movement by using a ball joint, and thereby allows the gas damper to be substantially along the rotation axis direction of the lid, not the opening / closing direction of the lid. Can be arranged.
And since the gas damper is arranged almost along the rotation axis direction of the ventilation lid, for example, it is arranged along the window of the building, the prospective dimension in the indoor / outdoor direction is small, and the finding dimension along the window is large Even if it is a ventilated lid that is too small in the prospective direction and cannot incorporate a gas damper in that direction, the gas damper is arranged along the longitudinal direction of the ventilated lid, A gas damper can be incorporated. Therefore, a general gas damper can be used and the cost can be reduced.
[0008]
As the gas damper, a conventionally known one can be used in which a cylinder and a piston rod are provided, and the piston rod is biased relative to the cylinder by the gas injected into the cylinder.
[0009]
Here, in a state where the ventilation lid is closed, the gas damper is arranged such that the axial direction of the gas damper is at an angle of not less than 0 degrees and not more than 30 degrees with respect to the rotation axis of the ventilation lid. preferable.
That is, the fact that the gas damper is arranged substantially along the rotation axis direction of the ventilation lid means that at least the angle between the arrangement direction (axial direction) of the gas damper and the rotation axis direction of the ventilation lid is 0 degree or more. However, it may be disposed within a range of 45 degrees or less, but is particularly preferably 0 degrees or more and 30 degrees or less.
If the angle between the gas damper arrangement direction and the direction of the ventilation lid rotation axis becomes smaller, the direction perpendicular to the axis of the ventilation lid, that is, the prospective direction of the ventilation device can be reduced accordingly, and even when the ventilation device is incorporated, the chamber The amount of protrusion to the inside can be suppressed, and the indoor space can be used effectively.
[0011]
Furthermore, it is preferable that the end portions close to each other in each of the gas dampers are attached to the ventilation lid or the ventilation lid housing portion via one bracket.
When two gas dampers are provided, four brackets are required if the end portions (ball joint portions) of the respective gas dampers are connected to the ventilation lid or the ventilation lid housing portion via separate brackets. As described above, if the end portions of the gas dampers that are arranged close to each other are connected to one bracket, it is only necessary to provide three brackets, and the number of parts can be reduced and the cost can be reduced.
[0012]
Here, the piston rod side end of each gas damper is connected to the ventilation lid housing part via a ball joint, and the cylinder side end is connected to the ventilation lid via a ball joint. preferable.
Since the ventilator is usually disposed under the window of the building, the ventilating lid is often disposed on the upper surface of the ventilating lid storage unit. In this case, when the ventilation lid is opened, the side connected to the ventilation lid housing portion is arranged on the lower side, and the side connected to the ventilation lid is arranged on the upper side. Therefore, if the connection is made as described above, the piston rod side of the gas damper is disposed on the lower side and the cylinder side is disposed on the upper side. Can be maintained.
[0013]
Further, the ventilation lid storage portion is formed in a substantially rectangular tube shape including an opening in which the ventilation lid is attached so as to be openable and closable and an opening communicated with the through hole, and the ventilation lid and the gas damper are It is preferable that the unit is attached in advance to the ventilation lid storage unit.
If the ventilation lid storage part, ventilation lid and gas damper are unitized, the ventilator unit can be configured in advance at the factory etc., and at the site, it is only necessary to attach this unit to the ventilation hole part, Work on site can be reduced.
[0014]
Furthermore, a slit communicating with the ventilation hole is formed in at least one frame of the curtain wall unit constituting the wall surface of the building, and the ventilation lid storage portion is constituted by a frame formed with the slit, and the ventilation The lid may be attached so that the opening on the indoor side of the slit formed in the frame can be opened and closed.
With such a configuration, a ventilation device can be incorporated into the frame portion of the curtain wall unit, so that space saving can be achieved. Furthermore, because the ventilation lid storage part is composed of the unit frame, the number of parts is reduced, and the ventilation device can be installed in the curtain wall unit in advance at the factory, etc. Therefore, workability can be improved.
[0015]
Further, at least one frame of the curtain wall unit constituting the wall surface of the building is composed of two frame members arranged at a predetermined interval, and the ventilation hole is formed by a gap between the two frame members. The ventilation lid storage part is constituted by the indoor side surface part of the two frame members, and the ventilation lid is attached so as to be able to open and close the indoor opening of the ventilation hole formed between the two frame members. It may be what you have.
With such a configuration, the ventilation hole is defined by each of the two frame members, and the ventilation lid storage portion is formed on the indoor side surface portion of the frame member, so that the number of parts can be reduced. Furthermore, since the ventilation device is incorporated into the side surface of the frame, the size of the frame in the expected direction can be suppressed as compared with the case where it is incorporated into the upper surface of the frame.
In addition, if the ventilation holes are defined by two frame members, it is not necessary to slit the frame to form the ventilation holes, so there is an advantage that the processing of the frame can be made unnecessary.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a first embodiment of the invention will be described with reference to the drawings.
FIG. 1 is a longitudinal sectional view of an outer wall portion of a building incorporating the ventilation device of the present embodiment, and FIG. 2 is an enlarged longitudinal sectional view of the ventilation device.
In this embodiment, the outer wall of the building is composed of a horizontal window type curtain wall in which glass curtain wall units 2 and panel units 3 made of ALC or PC are alternately arranged in the vertical direction.
The panel unit 3 is fixed to a floor panel 5 placed on a floor beam 4 on each floor of the building via a bracket or the like.
The glass curtain wall unit 2 is disposed between the upper and lower panel units 3 and attached to the panel unit 3. The curtain wall unit 2 includes a rectangular frame body having a four-frame framework including an upper frame 11, a lower frame 12, and left and right vertical frames 13, and a glass 15 is fitted in the frame body.
[0017]
In this embodiment, the curtain wall unit 2 is a double-skin type curtain wall having a glass panel 6 that can also slide and move inside the room. A blind 7 is also arranged between the curtain wall unit 2 and the glass panel 6.
[0018]
In the lower frame 12 portion of the curtain wall unit 2, the ventilation device 20 of the present invention serving as a natural ventilation port is disposed.
That is, as shown in FIGS. 2 and 3, the lower frame 12 includes a first frame member 12A that holds the glass 15, and a second frame member 12B that is disposed below the first frame member 12A at a predetermined interval. It has. The ends of the frame members 12A and 12B are screwed to the vertical frame 13, respectively, so that between the frame members 12A and 12B of the lower frame 12, the outdoor opening and the indoor side opened to the outside of the building. The ventilation hole 21 provided with the opened indoor side opening is formed.
A central bone 22 disposed at predetermined intervals in the direction in which the curtain wall unit 2 is found is attached to the outdoor opening of the ventilation hole 21 so as to span between the frame members 12A and 12B.
An expanded metal 23 serving as a bird net is attached to the opening surrounded by the middle bone 22 and the frame members 12A and 12B. Further, on the outdoor side of the expanded metal 23, a plurality of louvers 24 are spanned between the middle bones 22 and between the middle bones 22 and the vertical frame 13. Thereby, it is comprised so that a bird, an insect, and also rainwater etc. may not easily enter into the ventilation hole 21.
Note that, on the lower surface of the frame member 12B, two rain barrier seal members 18 that contact the upper surface of the panel unit 3 and a wind barrier seal member that contacts the seal member 3A attached to the upper surface of the panel unit 3 are provided. 19 is provided.
[0019]
A ventilation unit 30 constituting the ventilation device 20 of the present embodiment is attached to the indoor side opening portion of the ventilation hole 21. The ventilation unit 30 includes a ventilation lid housing part 31, a ventilation lid 32, and a gas damper 33 for opening and closing.
The ventilation lid storage unit 31 is arranged along the prospective direction of the unit 2 and the two horizontal frames 311 and 312 arranged along the direction in which the curtain wall unit 2 is found, and connects the frames 311 and 312. The vertical frame 313 is assembled in a square frame shape.
Here, the lower end 312A of the horizontal frame 312 extends downward at one end and extends toward the outdoor side, and the vertical frame 313 extends to the lower end 312A and is screwed to the lower end 312A.
The horizontal frame 311 is locked to the first frame member 12A, and the lower end 312A of the horizontal frame 312 is attached to the second frame member 12B with screws or the like.
Therefore, a flow path 314 is formed in the ventilation lid storage portion 31 from the opening on the side surface on the outdoor side to the opening on the upper surface, and the flow path 314 communicates with the ventilation hole 21 between the frame members 12A and 12B. Thus, it functions as a part of the ventilation hole 21.
[0020]
A punching metal 315 is spanned between the flanges of the frames 311 and 312 facing each other, and is disposed in the opening portion of the flow path 314.
Each frame 311, 312 is formed with a rising piece 316 against which a sealing material 321 attached to the lower surface of the ventilation lid 32 comes into contact when the ventilation lid 32 is closed.
A rotation shaft portion 317 is formed on the frame 312, and a groove 322 of the ventilation lid 32 is engaged with the rotation shaft portion 317. The outer peripheral surface of the rotating shaft portion 317 and the inner peripheral surface of the recessed groove 322 are each formed in an arc shape, and the ventilation lid 32 can be rotated with respect to the rotating shaft portion 317. Therefore, a shape hinge 34 is formed by the rotating shaft portion 317 and the concave groove 322.
[0021]
The ventilation lid 32 is formed in a substantially rectangular tube shape, and the inside thereof is filled with a heat insulating material. Further, as described above, the sealing material 321 is attached to the bottom surface. The sealing material 321 is continuously attached four times along the outer periphery of the bottom surface, and is configured so that when the ventilation lid 32 is closed, the space between the ventilation hole 21 and the indoor space can be reliably sealed. Yes.
A latch 323 serving as a latching device is provided on the side surface of the ventilation lid 32 on the outdoor side. The latch 323 is always urged outward by a spring, and is a push latch configured to sag inside the ventilation lid 32 only when the button 324 on the upper surface of the ventilation lid 32 is pressed.
The latch 323 is configured to be engaged with a hole of a latch metal 318 attached to the frame 311.
[0022]
As shown in FIGS. 4 to 6, two gas dampers 33 are attached between the ventilation lid housing 31 and the ventilation lid 32. Each gas damper 33 includes a cylinder 331 and a piston rod 332 provided so as to be movable in the axial direction with respect to the cylinder 331. The piston rod 332 is always urged in a direction protruding from the cylinder 331 by the gas injected into the cylinder 331.
Here, socket portions 333 of the ball joint 35 are formed at both ends of the gas damper 33, that is, at one end of the cylinder 331 and at the other end of the piston rod 332.
A ball stud 334 that engages with the socket portion 333 and forms the ball joint 35 together with the socket portion 333 is attached to the ventilation lid storage portion 31 and the ventilation lid 32, respectively.
[0023]
That is, a damper bracket 335 is attached to the ventilation lid housing portion 31, and two ball studs 334 are attached to the damper bracket 335. In the present embodiment, the damper bracket 335 is made of a stainless angle material bent in an L shape, and is attached to the punching metal 315 using a back plate and bolts.
On the other hand, damper brackets 336 are also attached to two locations separated in the direction in which the ventilation lid 32 is located, and one ball stud 334 is attached to each bracket 336. The bracket 336 is disposed inside the ventilation lid 32 and is attached by screwing a male screw of the ball stud 334 to a female screw formed on the bracket 336.
[0024]
The damper bracket 335 is disposed in the longitudinal direction of the ventilation lid storage portion 31, that is, substantially in the center portion in the direction in which the curtain wall unit 2 is found, and the bracket 336 is located symmetrically across the damper bracket 335, that is, from the damper bracket 335 to the unit 2. They are arranged at equidistant positions in the direction of finding. And the socket part 333 in the piston rod 332 of each gas damper 33 is rotatably attached to the ball stud 334 of the bracket 335. On the other hand, the socket 333 in the cylinder 331 of each gas damper 33 is rotatably attached to the ball stud 334 of the bracket 336. Each gas damper 33 is arranged in a substantially horizontal state as shown in FIG. 2 when the ventilation lid 32 is closed, and when the ventilation lid 32 is opened, the cylinder 331 is arranged as shown in FIGS. Is set above the piston rod 332. Thus, the gas in the cylinder 331 is provided so as not to leak from the gap between the piston rod 332 and the cylinder 331.
[0025]
When the ventilation lid 32 is closed, each of the gas dampers 33 is arranged inside the ventilation hole 21 and arranged substantially along the rotation axis (the shape hinge 34) of the ventilation lid 32. Yes. More specifically, each gas damper 33 has its axial direction (axial direction of the cylinder 331 and piston rod 332) D1 along the rotational axis (section hinge 34) (direction parallel to the rotational axis). ) It is arranged in an orientation that makes an angle θ1 of about 5 to 15 degrees with respect to D2.
Here, as shown in FIGS. 5 and 6, the socket portion 333 of the cylinder 331 attached to the ventilation lid 32 side when the ventilation lid 32 is closed is connected to the piston rod 332 attached to the ventilation lid storage portion 31 side. It arrange | positions in the position (position of a prospective direction) away from the rotation axis (shape hinge 34) of the ventilation cover 32 rather than the socket part 333. FIG.
As a result, the point of action of the force applied to the ventilation lid 32 by each gas damper 33 can be made relatively far from the shape hinge 34, and the moment of the force applied to the ventilation lid 32 by each gas damper 33 is made relatively large. be able to.
Furthermore, the prospective dimension (length in the horizontal direction) between the ventilation lid 32 and the ball joint 35 portion of each gas damper 33 and the shape hinge 34 gradually decreases as the ventilation lid 32 is opened. Thereby, when the ventilation lid 32 is opened in the vertical direction, the inclination of the prospective direction of each gas damper 33 is set to be substantially vertical.
The opening angle of the ventilation lid 32 is less than 90 degrees, and is usually about 60 degrees as shown in FIG. Therefore, the arrangement angle θ1 of the damper bracket 335 may be set in consideration of the projecting dimension of the cylinder 331 and the opening angle of the ventilation lid 32.
[0026]
In this embodiment, when the button 324 is pressed and the latch 323 is released from the latch metal 318, the ventilation lid 32 is automatically opened by the urging force of the gas damper 33. On the other hand, when the open ventilation lid 32 is pushed into the ventilation lid housing portion 31 against the biasing force of the gas damper 33, the latch 323 is pushed in such a way that its curved surface comes into contact with the latch metal 318. And automatically latched to the latch metal 318.
[0027]
According to this embodiment, there are the following effects.
(1) Since the ventilation lid 32 is configured to be opened by the gas damper 33, the opening / closing speed of the ventilation lid 32 can be adjusted, and smooth opening / closing can be performed.
For this reason, generation | occurrence | production of a metallic sound like the case where it opens and closes with a spring can be prevented, and the high quality ventilation apparatus 20 with few noises can be provided.
Further, since only the gas damper 33 needs to be provided, the number of parts can be reduced and the cost can be reduced as compared with the case where the spring and torque hinge parts are provided. In addition, since the gas damper 33 is disposed inside the ventilation device 20, that is, in the space between the ventilation lid storage portion 31 and the ventilation lid 32, the ventilation lid as in the case of using a spring and a torque hinge component. Since it is not necessary to arrange outside 32, space efficiency can be improved, and if the ventilation lid 32 is closed, the gas damper 33 is not exposed to the outside, so that the design can be improved.
Further, the gas damper 33 has higher durability than the spring, and can maintain the urging force constant even when used for a long period of time, so that the operability can be prevented from being lowered and the long-life ventilation device 20 can be obtained. .
[0028]
(2) Since the gas damper 33 is connected to the ventilation lid housing part 31 and the ventilation lid 32 via the ball joint 35, the gas damper 33 can be moved three-dimensionally when the ventilation lid 32 is opened. . For this reason, the gas damper 33 can be arranged substantially along the direction of the shape hinge 34 that is the rotation axis of the lid 32, not the opening / closing direction of the ventilation lid 32.
Therefore, in the ventilation device 20 that is elongated along the prospective direction of the curtain wall unit 2, the ventilation lid 32 is opened and closed in a direction orthogonal to the longitudinal direction, thereby reducing the amount of protrusion to the indoor side. The gas damper 33 can be disposed substantially along the longitudinal direction of the ventilation hole 21 in order to effectively use the living room space and to secure the opening area of the ventilation hole 21 by increasing the lateral length of the ventilation device 20. Therefore, it is possible to divert the commercially available gas damper 33, and the cost can be reduced. For example, as shown in FIG. 5, when the expected dimension L1 of the ventilation lid 32 is about 115 mm and the found dimension W1 is about 990 mm, the gas damper is rotated by the rotation of the ventilation lid 32 as in a normal gas damper arrangement. In order to arrange it along the direction perpendicular to the axis (the prospective direction of the ventilation lid 32), it is necessary to use one having an overall length of at least about 100 mm. However, such a small gas damper is not commercially available, and even if custom-made, a sufficient urging force and stroke cannot be obtained. On the other hand, in this embodiment, since the gas dampers 33 are arranged in a direction substantially along the rotation axis, commercially available gas dampers having a total length of 200 mm or more can be used as the respective gas dampers 33, and the cost can be reduced accordingly. At the same time, a sufficient urging force can be secured.
[0029]
(3) Two gas dampers 33 are used, and each of these gas dampers 33 is arranged in a plane-symmetrical position with respect to a plane orthogonal to the axial direction of the shape hinge 34 of the ventilation lid 32. Therefore, since the forces applied to the ventilation lid 32 by the gas dampers 33 in the direction of the rotation axis are opposite to each other and cancel each other, the force in the opening / closing direction is substantially applied to the ventilation lid 32. Thus, the ventilation lid 32 can be opened and closed smoothly. In addition, it is not necessary to employ a structure that restricts the movement of the ventilation lid 32 in the rotational axis direction, and the shape hinge 34 can be used as it is, so that the structure can be simplified.
[0030]
(4) Since the end of each gas damper 33 on the piston rod 332 side is connected to one damper bracket 335 via the ball joint 35, the end of each gas damper 33 (four places in total) is connected to the ventilation lid. When connecting to the storage part 31 and the ventilation lid 32, it is only necessary to provide a total of three damper brackets 335 and 336, and the number of parts can be reduced, thereby reducing the cost.
(5) Each gas damper 33 has an end portion on the cylinder 331 side connected to the ventilation lid 32 side opened and closed upward, and an end on the piston rod 332 side in the ventilation lid storage portion 31 arranged below the ventilation lid 32. The rod hole portion from which the rod 332 of the cylinder 331 projects is at least horizontal (when the ventilation lid 32 is closed) or downward (when the ventilation lid 32 is opened). The gas leakage from the rod hole portion can be prevented. For this reason, the urging force of the gas damper 33 can be maintained for a long period of time, and the rate at which the urging force is reduced by long-term use can be significantly reduced compared to the case of using a spring. Can be maintained.
[0031]
(6) Each gas damper 33 is not parallel to the rotation axis but is inclined at an angle θ1, and the ball joint 35 portion on the cylinder 331 side connected to the ventilation lid 32 is connected to the ventilation lid storage portion 31 as a piston rod. Since the ball joint 35 on the 332 side is arranged away from the rotation axis, the moment of force applied to the ventilation lid 32 can be increased.
[0032]
(7) The ventilation device 20 can be assembled as a ventilation unit 30 by previously assembling the ventilation lid storage unit 31, the ventilation lid 32, and each gas damper 33 at a factory or the like. Since it can be configured only by locking to the frame 12 and screwing, the construction work on site can be reduced.
In addition, since it can be unitized at the factory, the assembly accuracy of the ventilation lid storage portion 31 and the ventilation lid 32 can be very high, and the airtightness between the ventilation lid storage portion 31 and the ventilation lid 32 is also improved. It can be reliably maintained.
[0033]
(8) Since the lower frame 12 is composed of the two frame members 12A and 12B and the ventilation hole 21 is formed between the frame members 12A and 12B, when the ventilation hole 21 is formed by slitting the frame member Compared to this, the processing cost can be greatly reduced, and the cost can be reduced.
[0034]
Next, a second embodiment of the present invention will be described with reference to FIG.
In this embodiment, a ventilation device incorporated in the lower frame 12 of the curtain wall unit 2 as shown in FIG. 7 is used. That is, the lower frame 12 is composed of two frame members 12A and 12B, and a ventilation hole 21 is formed therebetween, and a slit 12C communicating with the ventilation hole 21 is formed in a part of the frame member 12A, and the indoor side opening is formed. The portion is used as a ventilation lid housing portion 31A of the ventilation device 20A, and a ventilation lid 32 is attached to the ventilation lid housing portion 31A constituted by the lower frame 12 by a shape hinge 34 or the like so as to be opened and closed. A gas damper 33 is attached via a ball joint 35 between the ventilation lid housing 31A, that is, the lower frame 12 and the ventilation lid 32.
The damper bracket 335 for attaching the gas damper 33 to the ventilation lid housing portion 31A may be provided with a punching metal 315 attached to the slit 12C portion as in the above embodiment, and screwed to the punching metal 315 portion. The slit 12C may be formed on a portion other than the mounting portion.
[0035]
Also in such a ventilator 20A, the same operational effects as (1) to (6) of the above embodiment can be obtained.
In addition, since the ventilation lid storage portion 31A is also used by the lower frame 12, the number of parts can be reduced and the cost can be reduced accordingly.
Further, since the ventilator 20A can be incorporated into the frame (lower frame 12) portion of the curtain wall unit 2, the projecting dimension of the ventilator 20 to the indoor side can be made smaller than that of the first embodiment, and the space can be saved. Can be achieved. Further, since the ventilation lid storage portion 31A is configured by the lower frame 12 of the unit 2, the ventilation device 20A can be incorporated in the curtain wall unit 2 in advance at the factory, and only the installation work of the curtain wall unit 2 is performed on site. Therefore, the work on site can be reduced and the construction period can be shortened.
[0036]
Next, a third embodiment of the present invention will be described with reference to FIG.
In this embodiment, the ventilation lid 32 is opened upward from the horizontal closed position in each of the above embodiments, whereas the ventilation lid 32 is set to the closed position in the vertical state, and the ventilation lid 32 is pulled to the indoor side. It is configured to be opened down.
That is, the lower frame 12 is composed of two frame members 12A and 12B, the ventilation hole 21 is formed between them, and the indoor opening portions of the frame members 12A and 12B that define the indoor opening of the ventilation hole 21 are defined. A ventilation lid 32 is attached to a ventilation lid housing part 31B constituted by the lower frame 12 by a shape hinge 34 or the like so as to be used as a ventilation lid housing part 31B of the ventilation device 20B. A gas damper 33 is attached via a ball joint 35 between the ventilation lid housing 31B, that is, the lower frame 12 and the ventilation lid 32. At this time, the damper bracket 335 for attaching the gas damper 33 to the ventilation lid housing portion 31A is attached to the punching metal 315 attached across the frame members 12A and 12B with screws or the like, as in the above embodiment.
[0037]
Also in this embodiment, the same effects as (1) to (6) and (8) of the first embodiment can be achieved.
Furthermore, since the ventilation lid accommodating part 31B is formed in the indoor side surface part of each frame material 12A, 12B, the number of parts can be reduced. Further, since the ventilation device 20B is incorporated into the side surfaces of the frame members 12A and 12B, the size in the prospective direction of the lower frame 12 can be suppressed as compared with the case where the ventilation device 20B is incorporated into the upper surface side of the lower frame 12.
[0038]
In addition, this invention is not limited to the structure of each said embodiment. For example, the shape, material, and the like of each component are not particularly limited as long as the function required for each component can be realized.
In the above embodiment, two gas dampers 33 are used. However, one or three or more gas dampers 33 may be used. These numbers may be appropriately set according to the size of the ventilation lid 32 and the like. However, in the present invention, since the gas damper 33 is incorporated in a direction substantially along the rotation axis of the ventilation lid 32, the urging force includes a component along the rotation axis direction of the ventilation lid 32. Therefore, it is preferable that the urging force components in the direction of the rotation axis are canceled by the respective gas dampers 33 as in the above embodiment. If this component cannot be canceled out, a structure in which the ventilation lid 32 does not move in the direction of the rotation axis may be employed.
[0039]
In the above-described embodiment, the cylinder 331 side of the gas damper 33 is connected to the ventilation lid 32 and the piston rod 332 side is connected to the ventilation lid storage portion 31. However, the present invention is not limited to this configuration. For example, in the third embodiment shown in FIG. 8, the ventilation lid 32 is turned upside down, the shape hinge 34 is arranged on the upper side of the ventilation lid 32, and the lower side of the ventilation lid 32 is pulled upward to open. If it is a structure, since the connection part of the ventilation lid 32 and the gas damper 33 is arrange | positioned near the lower end of the ventilation lid 32, the piston rod 332 side is connected to the ventilation lid 32, and the cylinder 331 side is connected to the ventilation lid storage part 31. Just connect.
In short, when the ventilation lid 32 is opened and closed, the cylinder 331 side of the gas damper 33 may be set so as to be disposed above the piston rod 332 side.
[0040]
The arrangement angle θ1 of the gas damper 33 may be at least 0 ° and less than 45 °, preferably 0 ° to 30 °, more preferably 5 ° to 15 °.
[0041]
Further, the ventilator of the present invention is not limited to the one provided in the lower frame 12 portion of the curtain wall unit 2, and for example, when the upper frame portion is at the rising portion from the floor of the indoor space like a waist wall panel. In addition, a ventilation device may be incorporated in the upper frame, and further may be incorporated in the vertical frame portion.
[0042]
Furthermore, the ventilator of the present invention does not require the outer wall of the building to be formed of a curtain wall, and the outer wall formed by attaching an appropriate outer wall material such as a tile to the wall surface of the placed concrete, or the like It may be an outer wall in which a sash window is installed in an opening provided on a simple wall surface, and may be disposed in a ventilation hole formed in such an outer wall.
Also, even when the outer wall of a building is formed of a curtain wall, the curtain wall is not composed of a curtain wall unit, but is installed on the site in the form of verticals, blinds, and these verticals and blinds. You may comprise by the face material etc. which are arrange | positioned at a part.
[0043]
【The invention's effect】
As described above, according to the ventilator of the present invention, it is possible to improve the space efficiency, prevent the deterioration of the designability, and maintain the force for opening the lid substantially constant even when used for many years. There is an effect that it is possible to prevent a decrease in sex.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a curtain wall in which a ventilation device according to a first embodiment of the present invention is incorporated.
FIG. 2 is an enlarged vertical sectional view showing a lower frame portion in which the ventilation device is incorporated.
FIG. 3 is an enlarged longitudinal sectional view showing the ventilation device.
FIG. 4 is a schematic perspective view showing a configuration of the ventilation device.
FIG. 5 is a plan view of the ventilation device.
FIG. 6 is an enlarged plan view of the ventilation device.
FIG. 7 is a longitudinal sectional view showing a ventilation device according to a second embodiment of the present invention.
FIG. 8 is a longitudinal sectional view showing a ventilation device according to a third embodiment of the present invention.
[Explanation of symbols]
2 ... curtain wall unit, 3 ... panel unit, 4 ... floor beam, 5 ... floor panel, 6 ... glass panel, 7 ... blind, 11 ... upper frame, 12 ... lower frame, 12A, 12B ... frame material, 12C ... slit , 13 ... Vertical frame, 15 ... Glass, 20, 20A, 20B ... Ventilator, 21 ... Ventilation hole, 22 ... Center bone, 23 ... Expanded metal, 24 ... Louver, 30 ... Ventilation unit, 31, 31A, 31B ... Ventilation Cover housing part 32 ... Ventilation cover 33 ... Gas damper 34 ... Shape hinge 35 ... Ball joint 311,312 ... Horizontal frame 313 ... Vertical frame 314 ... Flow path 315 ... Punching metal 316 ... Rising piece, 317, rotating shaft, 318, latch metal, 321, sealing material, 322, concave groove, 323, latch, 324, button, 331, cylinder, 332, pin Tonroddo, 333 ... socket portion, 334 ... ball stud, 335, 336 ... damper bracket.

Claims (7)

A ventilator that is provided in a ventilation hole having an outdoor opening that opens to the outside of the building and an indoor opening that opens to the indoor side, and opens and closes the ventilation hole,
A ventilation lid storage part provided in the indoor side opening portion of the ventilation hole, a ventilation lid provided to be openable and closable with respect to the ventilation lid storage part, and a gas damper for opening and closing the ventilation lid,
The cylinder damper and the piston rod end of the gas damper are connected to the ventilation lid and the ventilation lid storage portion via ball joints, respectively, and the ventilation lid is rotated in the space between the ventilation lid and the ventilation lid storage portion. The gas dampers are disposed substantially along the moving axis direction, and two gas dampers are provided, and each gas damper is provided at a position that is symmetrical with respect to a plane orthogonal to the rotation axis of the ventilation lid . Ventilation device.   2. The gas damper according to claim 1, wherein in a state where the ventilation lid is closed, the axial direction of the gas damper is arranged at an angle of 0 degrees or more and 30 degrees or less with respect to the rotation axis of the ventilation lid. Ventilation equipment.   The ventilation device according to claim 1 or 2, wherein end portions adjacent to each other in each of the gas dampers are attached to the ventilation lid or the ventilation lid housing portion via one bracket.   The end on the piston rod side of each gas damper is connected to the ventilation lid housing part via a ball joint, and the end on the cylinder side is connected to the ventilation lid via a ball joint. The ventilation apparatus in any one of. The ventilation lid storage portion is formed in a substantially rectangular tube shape including an opening in which the ventilation lid is attached so as to be openable and closable, and an opening communicated with the ventilation hole.
The ventilator according to any one of claims 1 to 4, wherein the ventilation lid and the gas damper are preliminarily attached to the ventilation lid housing portion and unitized. A slit communicating with the ventilation hole is formed in at least one frame of the curtain wall unit constituting the wall surface of the building,
The ventilating lid storage part is constituted by a frame in which the slit is formed, and the ventilation lid is attached so as to be able to open and close the indoor opening of the slit formed in the frame. Ventilation device according to. At least one frame of the curtain wall unit constituting the wall surface of the building is composed of two frame members arranged at a predetermined interval,
The ventilation hole is formed in the gap between the two frame members,
The ventilation lid storage portion is configured by a room side surface portion of the two frame members,
The ventilator according to any one of claims 1 to 4, wherein the ventilation lid is attached so as to be able to open and close a room-side opening of a ventilation hole formed between the two frame members.

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