JP5125554B2 - Ventilation fan - Google Patents

Description

  The present invention relates to a ventilation fan in which a main body is disposed behind a ceiling and connected to a duct for ventilation.

  Conventionally, a duct ventilation fan is known as this type of ventilation fan (see, for example, Patent Document 1).

  Hereinafter, the duct ventilation fan will be described with reference to FIGS. 7 and 8.

As shown in the drawing, a trapezoidal cutout hole 103 and a dowel hole 104 are provided in the side surface 102 of the duct ventilation fan main body 101, a main body upper flange portion 105 is provided above, a main body mounting flange 106 is provided below, and the duct side A plate upper flange 108 and an engagement piece 109 are provided on the upper part of the plate 107, and a bent part 110, a cut and raised locking piece 111 and a dowel 112 are provided on the vertical surface.
Japanese Utility Model Publication No. 5-41312 (pages 2 to 3, FIGS. 1 and 3)

  In such a conventional duct ventilation fan, the matching of the locking piece 111 of the duct side plate 107 and the cutout hole 103 of the duct ventilation fan main body 101 largely depends on the ability of the installer. When tucked up and screwed, the tact main body 101 and the duct side plate 107 cannot be locked, but also air leakage occurs, the ventilation ability is remarkably impaired, and there is a problem that the user does not notice an error in construction, The duct ventilation fan body 101 can be securely fixed to the normal position on the duct side plate 107 without depending on the ability of the installer, and when all the mounting screws of the duct ventilation fan body 101 are removed, the duct ventilation fan body 101 is There is a problem that it falls naturally, and even if the mounting screw is removed, It is prevented from being natural drop is required.

  The present invention solves such a conventional problem, and the main body frame can be securely fixed to the normal position on the adapter portion without depending on the ability of the installer. The purpose is to provide a ventilator with good workability and high safety that can prevent natural fall of water.

  In order to achieve the above object, the ventilation fan of the present invention has a main body of a ventilation fan having a main body frame and a frame flange portion in a shape that can be embedded and installed in a ceiling surface, a vertical surface that is separably coupled to the main body, and an approximately An adapter part for connecting a duct having an adapter flange part formed on a horizontal plane, a first engagement hole provided in a main body frame of the main body, and a second engagement hole provided in the frame flange part, A first claw provided on a vertical surface of the adapter portion and a second claw provided on the adapter flange portion, and a first engagement hole and a second engagement hole provided in the main body, The main body is coupled to the adapter portion by engaging with a first claw and a second claw provided on the adapter portion.

  By this means, the mating surface of the adapter part and the main body frame can be reliably fixed at the normal position without depending on the ability of the installer, and even if all the screws attached to the frame flange part are removed, the main body frame is attached to the adapter part. Since it is locked, it is possible to obtain a ventilation fan with good workability and high safety in which the main body does not fall.

  In another means, the first claw and the second claw are formed integrally with the adapter portion.

  By this means, an inexpensive and accurate ventilation fan can be obtained.

  Another means is that the first nail is provided with a flexible flexible portion.

  By this means, a ventilation fan with improved workability can be obtained.

  Another means is that the second claw is provided with a resin cover.

  By this means, a safe ventilation fan is obtained.

  Another means is that the first claw is provided with an inclined portion inclined upward from the root portion.

  By this means, a safe and easy ventilation fan can be obtained.

  Another means is that a plurality of protrusions that abut against the ceiling material mounting frame are provided on the vertical surface of the adapter portion.

  By this means, a ventilation fan with improved workability can be obtained.

  The other means is an inclined surface for guiding the main body to the adapter side when the second claw provided on the adapter portion is engaged with the second engagement hole in a shape descending toward the vertical surface side. Is provided.

  By this means, a ventilation fan with improved workability can be obtained.

  ADVANTAGE OF THE INVENTION According to this invention, the ventilation fan with the effect that workability is good and safety is high can be provided.

  In addition, it is possible to provide a ventilation fan that is inexpensive and highly effective.

  Moreover, the ventilation fan with the effect that workability improves can be provided.

  Moreover, the ventilation fan with the effect that safety is high can be provided.

Ventilator according to claim 1 of the present invention includes a main body of the ventilation fan having a main frame and the frame flange at installable shape embedded in a ceiling surface, formed in a vertical plane and a substantially horizontal surface which is detachably coupled to the body An adapter part for connecting a duct having an adapter flange part, a first coupling hole provided in a main body frame of the main body, a second engagement hole provided in the frame flange part, and an adapter part A first claw provided on the second vertical surface and a second claw provided on the adapter flange portion, the first engagement hole and the second engagement hole provided in the main body, A structure in which a main body is coupled to the adapter part by engaging with a first claw and a second claw provided on the adapter part, and a resin cover is provided on the second claw. And the second claw is the adapter flange Because it protrudes downward from the surface, the cover prevents the user from directly touching the protruding second nail when cleaning or the like, preventing injury and improving safety. Has an effect.

Further, the ventilation fan according to claim 2 is provided with an inclined portion inclined upward from the root portion on the first claw, and in the unlikely event, the mounting screw fixed to the main body via the frame flange portion As a temporary stop function when the main body is attached with a mounting screw, the first engaging hole provided in the main body frame can be covered with the inclined portion of the first claw so that the main body can be prevented from falling naturally. Will also work and has the effect that construction is easy and safety is enhanced.

According to a third aspect of the present invention, there is provided a ventilation fan in which a plurality of protrusions that abut against the ceiling material mounting frame are provided on a vertical surface of the adapter portion, and the first claw provided on the adapter portion is provided outside the main body frame. The main body frame can be separated from the adapter portion by pushing it toward the side, but at this time, a space is secured between the ceiling mounting frame and the adapter portion by the projection so that the first claw can move outward, so that workability is improved. Has an effect.

Further, the ventilator according to claim 4 is configured such that when the second claw provided on the adapter portion is engaged with the second engagement hole in a shape descending toward the vertical surface side, the main body is moved to the adapter portion side. The main body frame is provided with an inclined surface to be guided, and the main body frame is adapted to the adapter portion by engaging the inclined surface of the second claw provided in the adapter portion with the second engagement hole provided in the main body frame of the main body. It will be guided so that it may move to the side, and it has the effect | action that the construction property of the attachment of a main body improves.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
As shown in FIGS. 1 to 4, a main body frame 4 having a body frame and a frame flange portion 2 in a shape that can be embedded and installed on a ceiling surface, and a fan 4 in which a blower 3 is provided, and a main body 4 are separably coupled. The duct connecting adapter portion 8 having the adapter flange portion 7 formed by the vertical surface 5 and the horizontal surface 6, and the first engagement hole 9 and the frame flange portion 2 provided in the main body frame 1 of the main body 4. The first engagement hole 10 provided, the first claw 11 provided on the vertical surface 5 of the adapter part 8, and the second claw 12 provided on the adapter flange part 7, are provided in the main body 4. The engaging hole 9 and the second engaging hole 10 are provided so as to engage with the first claw 11 and the second claw provided in the adapter part 8 so as to couple the main body 4 to the adapter part 8.

  Further, a flexible flexible portion 13 is provided on the first claw 11, the first claw 11 and the second claw 12 are formed integrally with the adapter portion, and the second claw 12 A resin cover 14 shaped to cover the claws 12 is provided, and an inclined portion 15 that is inclined upward from the root portion is provided on the first claws 11.

  In the above configuration, a main body 4 of a ventilation fan having a main body frame 1 and a frame flange portion 2 in a shape that can be embedded and installed on a ceiling surface, and a vertical surface 5 that is detachably coupled to the main body 4. And an adapter portion 8 for connecting a duct having an adapter flange portion 7 formed on a horizontal plane 6, a first engagement hole 9 provided in the main body frame 1 of the main body 4, and a second portion provided in the frame flange portion 2. A first claw 11 provided on the vertical surface 5 of the adapter hole 8 and the second claw 12 provided on the adapter flange portion 7 is provided, and a first engagement hole 9 provided on the main body 4 is provided. By engaging the first claw 11 provided on the adapter portion 8 and the second claw 12 and coupling the main body 4 to the adapter portion 8, the second claw 12 protruding below the adapter portion 8 is provided. Because there is a frame on the main body 4 side in the normal position If the lunge part 2 is not inserted, the mounting surface of the frame flange part 2 will float, but the second engagement hole 10 of the frame flange part 2 is provided in the adapter flange part 7 of the adapter part 8 at the normal position. When inserted in accordance with the second claw 12, the first claw 11 provided in the adapter portion 8 engages with the first engagement hole 9 provided in the main body frame 1, and the main body is coupled to the adapter portion 8. Thus, the main body 4 can be securely fixed at the normal position without depending on the ability of the installer, and even when all the mounting screws of the main body 4 are removed, the main body 4 does not fall naturally and safety can be ensured. .

  In addition, since the first claw 11 and the second claw 12 are formed integrally with the adapter portion 8, the accuracy of the first claw 11 and the second claw 12 can be easily maintained, and the first claw 11 can be maintained. And the cost for forming the 2nd nail | claw 12 will become cheap.

  Further, by providing the flexible portion 13 having flexibility in the first claw 11, the first claw 11 is bent until it is locked in the first engagement hole 9 of the main body frame 1, and the main body 4 is inserted. Power can be reduced and workability will be improved.

  In addition, since the second claw 12 is provided with a resin cover, the second claw 12 protrudes downward from the surface of the adapter flange portion 7 and thus protrudes when the user performs cleaning or the like. Direct contact with the second claw 12 is prevented by the resin cover 14, and safety that can prevent injury is increased.

  In addition, by providing the first claw 11 with the inclined portion 15 inclined upward from the root portion, even if all the mounting screws that the main body 4 is fixed via the frame flange portion 2 are removed, The inclined portion 15 of the first claw 11 is engaged with the first engagement hole 9 provided in the main body frame 1 to prevent the main body 4 from falling naturally, and also serves as a temporary fixing function when the main body 4 is attached with an attachment screw. Therefore, construction is easy and safety is increased.

(Embodiment 2)
As shown in FIGS. 5 and 6, a plurality of protrusions 17 are provided on the vertical surface 5A of the adapter portion 8A so as to protrude from the ceiling mounting frame 16, and the second claws 12A provided on the adapter portion 8A are provided on the vertical surface 5A side. An inclined surface 18 is provided for guiding the main body 4A to the adapter portion 8A side when engaged with the second engagement hole 10A in a downwardly descending shape.

  In the above configuration, by providing a plurality of projections 17 projecting toward the ceiling mounting frame 16 on the vertical surface 5A of the adapter portion 8A, the first claw 11 provided on the adapter portion 8A is moved outward from the inside of the main body frame 1. The main body frame 1 can be separated from the adapter portion 8A by pushing it, but at this time, a space for allowing the first claw 11 to move outward is secured between the ceiling mounting frame 16 and the adapter portion 8A by the protrusion 17 so that the workability is improved. Will be improved.

  In addition, when the second claw 12A provided in the adapter portion 8A is engaged with the second engagement hole 10A in a shape descending toward the vertical surface 5A, the main body 4A is inclined to guide the adapter portion 8A. By providing the surface 18, the inclined surface 18 of the second claw 12 </ b> A provided in the adapter portion 8 </ b> A is engaged with the second engagement hole 10 </ b> A provided in the main body frame 1 of the main body 4 </ b> A. It will be guided so that it may move to the part 8A side, and the workability of attachment of the main body 4A will be improved.

  The ventilating fan according to the present invention has a highly safe effect that the workability of the main body arranged on the back of the ceiling is good and provides a fall prevention function, and is connected to a duct via an adapter part to perform ventilation and an air blower, etc. It can also be applied to.

The perspective view which shows the isolation | separation state of the main body and adapter part of the ventilation fan of Embodiment 1 of this invention Side configuration diagram showing the state where the main unit is coupled to the adapter part of the ventilation fan The perspective view which shows the state which provides the resin-made cover to the 2nd nail | claw provided in the adapter part of the ventilation fan Side configuration diagram showing the fall prevention function of the ventilation fan The perspective view which shows the isolation | separation state of the main body and adapter part of the ventilation fan of Embodiment 2 of this invention Side configuration diagram showing the state where the main unit is coupled to the adapter part of the ventilation fan Main part perspective view of a conventional duct ventilation fan Side configuration diagram showing the installation state of the ventilation fan for the duct

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body frame 2 Frame flange part 4 Main body 4A Main body 5 Vertical surface 5A Vertical surface 6 Horizontal surface 7 Adapter flange part 8 Adapter part 8A Adapter part 9 1st engagement hole 10 2nd engagement hole 10A 2nd engagement hole DESCRIPTION OF SYMBOLS 11 1st nail | claw 12 2nd nail | claw 12A 2nd nail | claw 13 Deflection part 14 Resin cover 15 Inclination part 16 Ceiling mounting frame 17 Protrusion 18 Inclination surface

Claims (4)

For connecting ducts with a main body of a ventilation fan that has a main body frame and a frame flange portion that can be embedded and installed in the ceiling surface, and a vertical surface that is separably coupled to the main body and an adapter flange portion that is formed in a substantially horizontal plane The first coupling hole provided in the main body frame of the main body, the second engagement hole provided in the frame flange portion, and the first vertical surface provided in the second vertical surface of the adapter portion. A claw and a second claw provided in the adapter flange portion, and a first engagement hole provided in the main body and a second engagement hole provided in the adapter portion. a is engaged with the second nail those configured to couple the body to the adapter unit, the the second pawl, conversion Kiogi having a resin cover. A first pawl, claim 1 Symbol placement of ventilation fan provided an inclined portion inclined toward the root portion upward. The ventilation fan according to claim 1 or 2, wherein a plurality of protrusions that contact the ceiling material mounting frame are provided on a vertical surface of the adapter portion. The inclined surface which guides a main body to the said adapter side when the 2nd nail | claw provided in an adapter part engages with a 2nd engagement hole in the shape descend | falling toward a perpendicular | vertical surface side was provided. The ventilation fan in any one of 3 .

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