JPH10246478A - Ventilation fan - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ventilation fan in which a lid can be prevented from dropping even in case that its connected part is broken. SOLUTION: A main body frame 12 is provided with a sliding plate 15 in such a way that it may be slid. As the sliding plate 15 is slid, a panel 19 is moved integrally and a suction port 14a is opened or closed. In this case, as a screw 21 is fastened to a hub part 19c through a screw fixing part 20 of the sliding plate 15, the panel 19 is connected to the sliding plate 15 and as the hub part 19c is broken, a hook part 23 of the panel 19 is supported by the screw fixing part 20 of the sliding plate 15 and further it is engaged with a protrusion 24 of the sliding plate 15, resulting in that the panel 19 is prevented from dropping.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation fan configured to open and close an intake port as a cover moves.

[0002]

Problems to be Solved by the Invention FIGS. 14 and 15
Shows a conventional configuration of the ventilation fan. First, in FIG. 14, an elongated sliding body 2 is slidably provided on a main body frame 1. A lid 3 is connected to the leading end of the sliding body 2. When the sliding body 2 slides in the directions indicated by arrows A and A, the lid 3 moves integrally with the sliding body 2, and the body frame is moved. The first intake port 1a is opened and closed.

In the case of the above structure, as shown in FIG. 15, a cylindrical connecting portion 3a is formed on a lid 3, and a sliding member 2 is formed.
The cover 3 is connected to the sliding member 2 by tightening the screw 4 into the connecting portion 3a through the screw fixing portion 2a. Therefore, if a detergent, a pesticide, or the like adheres to the connection portion 3a, the rigidity of the connection portion 3a decreases with the passage of time, or cracks (so-called solvent cracks) occur in the connection portion 3a.
There was a possibility that a might be damaged from the base and the lid 3 would fall.

[0004] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a ventilation fan that can prevent a lid from falling even when a connection portion is broken.

[0005]

According to a first aspect of the present invention, there is provided a ventilation fan having a main body frame having an intake port and an exhaust port, a sliding body slidably provided in the main body frame, and connected to a distal end of the sliding body. A lid that opens and closes the intake port as it is connected via a portion and moves integrally with the sliding body, and a fan device that sucks air from the intake port and discharges the air from the exhaust port when the intake port is opened. An engaging portion provided on the lid, a supporting portion provided on the sliding member, supporting the engaging portion from below to prevent the lid from falling when the connecting portion is damaged, and And an engaged portion for preventing the cover from falling down in a direction away from the main body frame by being engaged with the engaging portion when the connecting portion is damaged.

According to the above means, when the connecting portion is damaged, the engaging portion of the lid is supported from below by the support of the sliding body, so that the lid is prevented from dropping. In addition, the engaging portion of the lid is engaged with the engaged portion of the sliding body, and the lid is prevented from falling in a direction away from the main body frame.

In the ventilation fan according to the second aspect, an engaged portion projecting upward is provided on the sliding body, a protruding engaging portion having an insertion portion is provided on the lid, and the engaged portion is connected. It is characterized in that it is located below the insertion portion in a non-damaged state of the portion, and enters into the insertion portion and engages with the engagement portion when the connection portion is broken.

According to the above means, when the connecting portion is not damaged, the engaged portion of the sliding member is located below the insertion portion of the lid,
The gap between the engaging portion of the lid and the engaged portion of the sliding member is held in a non-engaged state. For this reason, when connecting a sliding body to a lid, interference between an engaging part and a to-be-engaged part is prevented, and connection workability of a sliding body improves. In addition, when the connection portion is damaged, the engaged portion of the sliding member enters the insertion portion of the lid, so that the engaging portion of the lid is supported from below by the supporting portion of the sliding member. Is prevented from falling and falling down.

The ventilating fan according to the third aspect is characterized in that the engaging portion of the lid and the engaged portion of the sliding body are wrapped up and down in a non-damaged state of the connecting portion. According to the above-described means, since the engaging portion of the lid and the engaged portion of the sliding body are wrapped in a non-damaged state of the connecting portion, the engaging portion is supported by the supporting portion of the sliding body when the connecting portion is damaged. It is surely supported, and
Engage securely with the engaged portion. For this reason, the fall and fall of the lid are reliably prevented.

[0010] The ventilating fan according to claim 4 is characterized in that an R portion is provided at a corner on the lid side of the front end of the engaged portion of the sliding body. According to the above-described means, since the R portion is provided on the engaged portion of the sliding member, the engaged portion is prevented from being hooked on the engaging portion when the sliding member is applied to the lid. For this reason, especially when wrapping between the engaging part of the lid and the engaged part of the sliding body, there is no possibility that the connection workability of the sliding body to the lid is impaired.

According to a fifth aspect of the present invention, in the ventilating fan, a protruding engaged portion having an insertion portion is provided on the sliding body, a downwardly protruding engaging portion is provided on the lid, and a non-connecting portion is provided. It is characterized in that the engagement portion is inserted into the insertion portion in a broken state. According to the above means, when the connecting portion is not damaged, the engaging portion of the lid is inserted into the insertion portion of the sliding member. Therefore, when the connecting portion is damaged, the engaging portion of the lid is changed to the supporting portion of the sliding member. , And is securely engaged with the engaged portion of the sliding body. For this reason, the fall and fall of the lid are reliably prevented.

According to a sixth aspect of the present invention, in the ventilation fan, a protruding engaged portion is provided on the sliding body, and a substantially L-shaped engaging portion forming an insertion portion that opens downward with the lid is formed on the sliding body. It is provided on the body, and is characterized in that the engaged portion is inserted into the insertion portion with the connection portion in an undamaged state. According to the above-described means, the engaged portion of the sliding member is inserted into the insertion portion of the lid when the connecting portion is not damaged, so that the engaging portion of the lid supports the sliding member when the connecting portion is damaged. The portion is securely supported by the portion and securely engages with the engaged portion of the sliding body. For this reason, the fall and fall of the lid are reliably prevented.

According to a seventh aspect of the present invention, in the ventilation fan, a substantially L-shaped engaging portion having a pair of downwardly directed legs is provided on the lid, and the pair of legs is inserted when the connecting portion is not damaged. A projection-like engaged portion having an inserted portion is provided on a sliding body, and a stopper projection for preventing each leg from being removed from the insertion portion is provided at a tip portion of each leg. Has features.

According to the above-mentioned means, since both legs of the lid are inserted into the insertion portion of the sliding member when the connecting portion is not damaged, the engaging portion of the lid is moved when the connecting portion is damaged. It is securely supported by the support portion and reliably engages with the engaged portion of the sliding body. For this reason, the fall and fall of the lid are reliably prevented. In addition, since each leg is prevented from being removed from the insertion portion by the retaining projection, the fall of the lid is more reliably prevented.

[0015]

FIG. 1 shows a first embodiment of the present invention.
A description will be given with reference to FIG. First, in FIG.
A ventilation fan insertion hole 11a is formed in the room wall 11, a wooden frame 11b is inserted into the ventilation fan insertion hole 11a, and a main body frame 12 is inserted into the wooden frame 11b. The body frame 12 is formed by attaching a cover 14 (see FIG. 4) to a frame 13 (see FIG. 4), and the frame 13 has an opening 13a formed on the indoor side. An exhaust port 13b is formed at the outside of the room.

The cover 14 has an intake port 14a located at the center. In addition, the cover 14
As shown in FIG. 5, insertion holes 14b are formed at both ends of the intake port 14a, and a sliding plate 15 is slidably inserted into each of the insertion holes 14b. Each of these sliding plates 15 is formed of a synthetic resin, and a right end of each sliding plate 15 has a slot 15a.
Are formed. The sliding plate 15 corresponds to a sliding body.

A support plate 16 made of synthetic resin is screwed to the cover 14 at both ends of the intake port 14a (near the insertion hole 14b). A first guide roller 17 is mounted on the right end of each of the support plates 16.
5 is inserted into the long hole 15a. Note that reference numeral 16a
Indicates screws for fixing the support plate 16 to the cover 14.

As shown in FIG. 3, shaft portions 16b are integrally formed on the left end of each support plate 16, and a second guide roller 18 is rotatably mounted on each of the shaft portions 16b. I have. Positioning ribs 15b and 15c are formed integrally with the sliding plate 15 at upper and lower ends, respectively. As shown in FIG. A gap is formed between each guide rib 18 and each positioning rib 15c located below.

As shown in FIG. 1, the panel 19 corresponding to the lid has a rectangular plate-shaped main body portion 19a and a main body portion 19a.
And a frame portion 19b surrounding the main body portion is integrally formed of a synthetic resin, and a cylindrical boss portion 19c corresponding to a connection portion is integrally formed at both ends of the main body portion 19a as shown in FIG. Have been.

At the left end of each sliding plate 15, a screw fixing portion 20 is formed integrally. Each of these screw fixing portions 20
Is composed of a substantially U-shaped frame portion 20a and a plate portion 20b for closing the right end opening of the frame portion 20a. A boss portion 19c is inserted into each screw fixing portion 20. A screw insertion hole 20c is formed in each plate portion 20b, and a screw 21 is screwed into each boss 19c through the screw insertion hole 20c. As a result, as shown in FIG.
Abuts on the body 19a of the panel 19, and the panel 1
9 is connected to both sliding plates 15.

As shown in FIG. 3, a spring hook 15d is formed integrally with each slide plate 15, and a spring hook 16c is formed integrally with each support plate 16. The ends of the return spring 22 are hooked on the portions 15d and 16c. Each of these return springs 22 is composed of a tension coil spring. As shown by a solid line in FIG.
4, the intake port 14 a of the cover 14 is closed by the panel 19.

As shown in FIG. 3, projecting hooks 23 corresponding to the engaging portions are integrally formed on both ends of the panel 19. Each of these hooks 23 is composed of a main body 19a and a frame 1
9b, and a hole-shaped insertion portion 23a is formed between each hook portion 23 and the panel 19. Each sliding plate 15 has a screw fixing portion 20.
A projection 24 is formed integrally with the projection 24 and is located at the front end of the projection. Each of the projections 24 corresponds to an engaged portion, and is located below the insertion portion 23a as shown in FIG.

As shown in FIG. 1, a motor support plate 25 is provided in the frame 13, and a fan motor 26a of a fan device 26 is mounted on the motor support plate 25. The fan device 26 includes a fan motor 2
The fan 26b is attached to the rotation shaft of 6a, and when the fan motor 26a operates, the fan 26b rotates.

As shown in FIG. 3, a damper insertion hole 16d is formed in each support plate 16, and a main body 27 of an oil damper 27 is provided in each of the damper insertion holes 16d.
a is attached. Each of these oil dampers 27
Is configured such that a gear 27b is rotatably mounted on a main body 27a, and the main body 27a is filled with oil that gives resistance to the rotation of the gear 27b.

Each sliding plate 15 is integrally formed with a rack portion 15e. And each of these rack parts 15e
The gear 27 of the oil damper 27, as shown in FIG.
When each sliding plate 15 slides, the sliding force of each sliding plate 15 is applied to the rack portion 15.
e to the gear 27b, and the gear 27b rotates against the viscous force of the oil. Thereby, resistance is given to the slide of each slide plate 15.

As shown in FIG. 1, a panel drive mechanism 28 is provided in the frame 13. The panel drive mechanism 28 is formed by connecting an output shaft of a hoist motor 28a and an arm 28b by a wire 28c. When the hoist motor 28a operates, the wire 28c is wound in a direction opposite to the arrow A. 28b rotates in the direction of arrow B about axis 28d. As shown in FIG. 2, the pressing portion 28e extending in the depth direction of the paper is bent and formed on the arm 28b. When the arm 28b rotates in the direction of arrow B, the right ends of both sliding plates 15 are moved. The pressing portions 28e are simultaneously pressed in the direction of arrow A.

Next, the operation of the above configuration will be described. When an operation key (not shown) is operated, the hoist motor 28
Power is supplied to a, and first, the arm 28b rotates in the direction of arrow B about the shaft 28d. Next, both sliding plates 1
5 is pressed by the pressing portion 28e of the arm 28d and slides in the direction of arrow A against the spring force of the return spring 22. As a result, the panel 19 moves integrally in the same direction, and the intake port 14a of the cover 14 is opened as shown by a two-dot chain line in FIG. At the same time, the fan motor 26a
Is supplied to the frame 13, air in the room is sucked into the frame 13 from the intake port 14 a through the opening 13 a, and the exhaust port 13 b
Through the room.

When a stop key (not shown) is operated in this state, the winding motor 28a is turned off, and each sliding plate 15 slides in the direction indicated by the arrow A by the spring force of the return spring 22. Then, the panel 19 slides integrally in the same direction and comes into contact with the cover 14, thereby closing the intake port 14a. At the same time, the fan motor 26
a is cut off, and the ventilation operation stops. As shown in FIG. 5, an operation panel 29 is mounted on the cover 14, and a run key and a stop key are mounted on the operation panel 29.

According to the above embodiment, the hooks 23, 23 are formed on the panel 19, and the projection 24 is formed on each sliding plate 15. For this reason, both boss portions 1 of panel 19
9c is damaged, each protrusion 24 enters the insertion portion 23a, and each hook 23 is fixed to the screw fixing portion 20 of the sliding plate 15.
Since the panel 19 is supported by the lower portion (corresponding to the supporting portion of the sliding plate 15), the panel 19 is prevented from dropping in the vertical direction. Moreover, each hook 23 engages with the projection 24,
Since the panel 19 is prevented from falling in the direction of the arrow C, the panel 19 is reliably prevented from falling off as a whole, and safety is improved.

Further, when the projections 24 of each slide plate 15 are arranged below the insertion portion 23a in a state where the boss portions 19c are not damaged, the projection 24 and the hook portion 23 are disengaged. Held. Therefore, each sliding plate 1
In connecting the panel 5 to the panel 19, the projection 24 is prevented from interfering with the hook 23, so that the connection workability of the sliding plate 15 is improved.

Further, an oil damper 27 is attached to each support plate 16, and a rack portion 15e of each sliding plate 15 is provided.
With the gear 27b of the oil damper 27. Therefore, when the intake port 14a is opened and closed, the sliding force of each sliding plate 15 is transmitted to the gear 27b through the rack portion 15e, and the gear 27b rotates against the viscous force of the oil. A resistance is applied to the slide in the direction A and the slide in the direction opposite to the arrow A. Therefore, when each sliding plate 15 slides in the direction indicated by the arrow A by the spring force of the return spring 22, the speed of each sliding plate 15 is reduced, so that the impact when the panel 19 collides with the cover 14 is reduced. .

Further, the first guide rollers 17 are mounted on the support plates 16, and these guide rollers 17 are inserted into the elongated holes 15a of the slide plates 15, so that the respective slide plates 15 slide when the slide holes 15 slide. The rotational force is transmitted to the guide roller 17 from the inner surface of 15a, and the guide roller 17 rotates. For this reason, since each sliding plate 15 is guided by the guide roller 17 and slides smoothly, the opening and closing of the intake port 14a by the panel 19 is stably performed.

Also, since the second guide rollers 18 are attached to the support plates 16 and these guide rollers 18 are brought into contact with the positioning ribs 15b of the slide plate 15,
When each sliding plate 15 slides, positioning ribs 15b
The rotational force is transmitted to the guide roller 18 from the motor, and the guide roller 18 rotates. Therefore, each sliding plate 15 is guided by the guide roller 18 and slides smoothly from this point, so that the opening and closing of the intake port 14a is stably performed.

Moreover, since each positioning rib 15b comes into contact with the guide roller 18 and each sliding plate 15 is positioned in the vertical direction, each sliding plate 15 can be hooked on the inner surface of the insertion hole 14b of the cover 14. Is prevented. For this reason, since each sliding plate 15 slides more smoothly, the opening and closing of the intake port 14a is further stabilized.

By the way, the right ends of both sliding plates 15 are pressed in the direction of arrow A by the arm 28b.
Each sliding plate 15 tends to slightly lift when sliding in the direction of arrow A. For this reason, in the case of the conventional configuration in which the positioning rib 15c is not formed at the lower end of each sliding plate 15, the rack 15e of each sliding plate 15 may be disengaged from the gear 27b of the oil damper 27 or the rack 15e. Since the meshing state with the gear 27b becomes unstable, each sliding plate 15 may not slide smoothly.

On the other hand, in the above embodiment, since the positioning ribs 15c are formed at the lower end of each sliding plate 15, when each sliding plate 15 tries to lift up when sliding in the direction of arrow A, each positioning plate 15c is lifted. The rib 15c comes into contact with the guide roller 18, and the lifting of each sliding plate 15 is prevented. For this reason, the rack portion 1 of each sliding plate 15
The meshing state between the gear 5e and the gear 27b is stabilized, and the sliding plates 15 slide smoothly from this point, so that the opening and closing of the intake port 14a is also stabilized.

Next, a second embodiment of the present invention will be described with reference to FIG. The same members as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted. Hereinafter, only different members will be described. The lower end of each hook 23 and the projection 2
4 is wrapped in the vertical direction with both bosses 19c not damaged.

According to the above embodiment, each sliding plate 15
Is inserted into the insertion portion 23a of the panel 19, and then the boss 1 is inserted through the plate 20b of each sliding plate 15.
When the screw 21 is tightened to 9c, the panel 19 is connected to each sliding plate 15, and the gap between each protrusion 24 and the hook 23 is wrapped. For this reason, when both bosses 19c are damaged, each protrusion 24 surely enters the insertion portion 23a, and each hooking portion 23 is securely supported by the screw fixing portion 20 of the sliding plate 15, so that the protrusion 24 can be securely connected to the protrusion 24. The panel 19 is more securely prevented from falling off.

In the case where the projections 24 are engaged with the hooks 23 in a state in which both bosses 19c are not damaged, when the respective sliding plates 15 are connected to the panel 19, It takes time to insert the part 24 sufficiently into the insertion part 23a. On the other hand, in the present embodiment, each projection 2
4 is wrapped between the upper end of the hook 4 and the lower end of the hook 23, so that it is not necessary to fully insert each protrusion 24 into the insertion portion 23a. For this reason, a decrease in the connection workability of the sliding plate 15 is prevented.

Next, a third embodiment of the present invention will be described with reference to FIG. The same members as those in the second embodiment are denoted by the same reference numerals, and description thereof will be omitted. Hereinafter, only different members will be described. At the upper end of each projection 24, an R portion 24a is formed at the corner on the panel 19 side, and at the lower end of each hook 23, at the inner (projection 24 side) corner. R portion 23b is formed.

According to the above embodiment, since the R portion 24a is formed at the upper end of each projection 24, when the sliding plate 15 is applied to the panel 19, the upper end of each projection 24 is attached to the hook 23. It is prevented from getting caught. With this,
Since the R portion 23b is formed in each hook portion 23, after each sliding plate 15 is applied to the panel 19 and then slid upward, each projection 24 is inserted into the insertion portion 23a without being hooked on the hook portion 23. Inserted. For this reason, the connection workability of the sliding plate 15 is improved, and particularly, even when each of the hooks 23 of the panel 19 and the projection 24 of the slide plate 15 are wrapped, the connection workability of the slide plate 15 is improved. There is no risk of being damaged.

Next, a fourth embodiment of the present invention will be described with reference to FIG. The same members as those in the third embodiment are denoted by the same reference numerals, and description thereof will be omitted. Hereinafter, only different members will be described. An R portion 24b is formed at the upper end of each protrusion 24 at a corner opposite to the panel 19 (a corner on the hook 23 side).

According to the above-described embodiment, since the R portion 24b is formed at the upper end of each projection 24, each sliding plate 15 applied to the panel 19 is slid upward and each projection 24
When each is inserted into the insertion portion 23a, each protrusion 24 is prevented from being hooked on the hook 23. For this reason, the connection workability of the sliding plate 15 is improved, and in particular, each hook 23 of the panel 19 and the protrusion 24 of the sliding plate 15 are formed.
Even when wrapping is performed, there is no possibility that the connection workability of the sliding plate 15 is impaired.

Next, a fifth embodiment of the present invention will be described with reference to FIG. The same members as those in the fourth embodiment are denoted by the same reference numerals, and description thereof will be omitted. Hereinafter, only different members will be described. An R portion 23b is formed at a lower end portion of each hook portion 23 at an inner corner (on the protruding portion 24 side).

According to the above embodiment, since the R portions 23b are formed in the respective hook portions 23, the respective sliding plates 15 applied to the panel 19 are slid upward, and the respective projecting portions 24 are inserted into the inserting portions 23a. In doing so, it is prevented that each projection 24 is hooked on the hook 23. For this reason,
The connection workability of the sliding plate 15 is improved, and especially the panel 1
Even when each of the hooks 23 of FIG. 9 is wrapped between the protrusions 24 of the sliding plate 15, there is no possibility that the connection workability of the sliding plate 15 is impaired.

Next, a sixth embodiment of the present invention will be described with reference to FIGS. The same members as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted. Hereinafter, only different members will be described. First, FIG.
In each of the slide plates 15, a protruding hook portion 30 corresponding to the engaged portion is integrally formed at the distal end portion of each sliding plate 15. Each of the hooks 30 has a substantially U-shape in which the arms 30a and 30b are connected to each other by a connecting portion 30c, and a rectangular hole is provided between each of the hooks 30 and the sliding plate 15. An insertion portion 30d is formed.

At both ends of the panel 19, an L-shaped projection 31 pointing downward is integrally formed. Each of the projections 31 corresponds to an engagement portion, and each of the sliding plates 1
5 is applied to the panel 19 and is slid upward.
As shown in FIG. 10, the protrusion 31 enters each of the insertion portions 30d. Thereafter, when the screw 21 is screwed into the boss portion 19c through the plate portion 20b of each sliding plate 15, the tip of each sliding plate 15 and one arm portion 30a of the hooking portion 30 abut on the panel 19, and both sliding portions are brought into contact. The moving plate 15 is fixed to the panel 19. Reference numeral 31a denotes the protrusion 31 and the panel 19.
And an insertion portion formed between the first and second portions, and the insertion portion 31a is open downward.

According to the above-described embodiment, each projection 31 is inserted into the insertion portion 30d of the sliding plate 15 in a state where both bosses 19c are not damaged. 31 is the left arm 30a (sliding plate 1)
5 (corresponding to the supporting portion 5), and is securely engaged with the hook portion 30. For this reason, Panel 1
9 is reliably prevented from falling and falling.

In the sixth embodiment, each projection 31 of the panel 19 is inserted into the insertion portion 30d of the slide plate 15 in a state where both bosses 19c are not damaged. However, the present invention is not limited to this. Instead, for example, the lower end of each protrusion 31 may be arranged above the insertion portion 30d. Even in the case of this configuration, when both bosses 19c are damaged, each projection 31 enters the insertion portion 30d, so that the panel 19 is prevented from falling and falling.

In the sixth embodiment, the upper end of each arm 30a has a corner on the panel 19 side, and each arm 30a
Of the upper end portions, the corners on the protrusion 31 side, the lower end of each protrusion 31 on the arm 30a side, and the lower end of each protrusion 31 on the arm 30b side are formed in an edge shape. However, the present invention is not limited to this, and these portions may be formed in an R shape. In the case of this configuration, each sliding plate 15 is
In connection with 9, the hook portions 30 are prevented from being hooked on the protruding portions 31, so that the connection workability is improved.

Next, a seventh embodiment of the present invention will be described with reference to FIG. Note that the same members as those in the sixth embodiment are denoted by the same reference numerals, and description thereof will be omitted. Hereinafter, only different members will be described. A protruding plate portion 32 is integrally formed at the tip of each sliding plate 15. Each of these plate portions 32 corresponds to an engaged portion and a support portion,
When both bosses 19c are not damaged, they are inserted into the insertion portions 31a.

According to the above embodiment, the plate portions 32 of the sliding plates 15 are inserted into the insertion portions 31a in a state in which both the boss portions 19c are not broken. The plate 31 is securely supported by the plate 32, and is securely engaged with the plate 32. For this reason, the fall and fall of the panel 19 are reliably prevented. Moreover, since there is no need to form an engaged portion having a complicated shape having a hole in the sliding plate 15, a molding die for molding the sliding plate 15 is simplified, and the formability of each sliding plate 15 is improved. I do.

In the seventh embodiment, the plate portion 32 of each slide plate 15 is inserted into the insertion portion 31a of the panel 19 while the boss portions 19c are not damaged. However, the present invention is not limited to this. Instead, for example, the upper end of each plate portion 32 may be arranged below the insertion portion 31a. Even in the case of this configuration, when both bosses 19c are damaged, each plate 32 enters the insertion portion 31a, so that the panel 19 is prevented from falling and falling.

In the seventh embodiment, the corners on the panel 19 side of the upper ends of the plate portions 32, the corners on the protrusion 31 side of the upper end portions of the plate portions 32, and the Although the corner at the plate portion 32 side of the lower end is formed in an edge shape, the present invention is not limited to this, and these portions may be formed in an R shape. In the case of this configuration, when each sliding plate 15 is connected to the panel 19, each plate portion 32 is prevented from being hooked on the protruding portion 31, so that the connection workability is improved.

Next, an eighth embodiment of the present invention will be described with reference to FIG. The same members as those in the seventh embodiment are denoted by the same reference numerals, and description thereof will be omitted. Hereinafter, only different members will be described. A protruding hook portion 33 corresponding to the engaged portion is integrally formed at the tip of each sliding plate 15. Each of the hooks 33 has a rectangular frame shape in which the arms 33a and 33b are connected to each other by connecting portions 33c and 33c. In each hook 33, a rectangular hole-shaped insertion portion 33d is formed. ing.

Each projection 31 of the panel 19 is formed with a pair of legs 31b. Each of the legs 31b is obtained by forming a cutout portion 31c that opens downward in the projection 31. A stopper projection 31d is integrally formed at the tip of each leg 31b. .

According to the above embodiment, each sliding plate 15
Is applied to the panel 19 and is slid upward, each retaining projection 31d is pressed by the inner surface of the connecting portion 33c. Then, each leg 31b is elastically deformed, and the insertion portion 3
It is inserted into 3d in a retaining state. Thereafter, when the screw 21 is screwed into the boss 19c through the plate portion 20b of each sliding plate 15, the tip of the sliding plate 15 and one arm 33a abut on the panel 19, and the sliding plate 15 Connected to panel 19.

In the case of this configuration, when both bosses 19c are not broken, each leg 31b of panel 19 is inserted into insertion portion 33d of sliding plate 15, so if both bosses 19c are damaged, Each protrusion 31 is an arm 33a on the left side of the hook 33 (corresponding to a support of the sliding plate 15).
, And is securely engaged with the hook 33.
For this reason, the fall and fall of the panel 19 are reliably prevented. In addition, since each retaining protrusion 31d is engaged with the connecting portion 33c of the hook 33, and each leg 31b is prevented from being removed from the insertion portion 33d, the panel 19 is reliably prevented from falling down.

In the eighth embodiment, each arm 3
3a, a corner on the panel 19 side, and each arm 33a
Of the upper end portions, the corners on the protrusion 31 side, the lower end of each protrusion 31 on the arm 33a side, and the lower end of each protrusion 31 on the arm 33b side are formed in an edge shape. However, the present invention is not limited to this, and these portions may be formed in an R shape. In the case of this configuration, each sliding plate 15 is
In connection with 9, the hook 33 is prevented from being hooked on the projection 31, so that the connection workability is improved.

[0060]

As apparent from the above description, the ventilation fan of the present invention has the following effects. According to the first aspect of the invention, when the connecting portion is broken, the engaging portion of the lid is supported from below by the supporting portion of the sliding member, and is engaged with the engaged portion of the sliding member. For this reason, since the fall and fall of the lid are prevented, safety is improved. According to the second aspect of the present invention, the engaged portion of the sliding member is disposed below the insertion portion of the lid when the connection portion is in an undamaged state. For this reason, when connecting a sliding body to a lid, interference between an engaging part and a to-be-engaged part is prevented, and connection workability of a sliding body improves.

According to the third aspect of the present invention, when the connecting portion is not damaged, the engaging portion of the lid and the engaged portion of the sliding member are wrapped. Therefore, when the connecting portion is broken, the engaging portion is securely supported by the supporting portion of the sliding body and securely engages with the engaged portion, so that the fall and fall of the lid are more reliably prevented. In addition, since the engaged portion does not need to be engaged with the engaging portion when connecting the sliding body to the lid, a reduction in the connection workability of the sliding body is prevented.

According to the fourth aspect of the present invention, since the R portion is formed on the engaged portion of the sliding body, the engaged portion can be hooked on the engaging portion when the sliding body is applied to the lid. Is prevented. For this reason, the connection workability of the sliding body is improved,
In particular, even when the engaging portion of the lid and the engaged portion of the sliding body are wrapped, there is no possibility that the connection workability of the sliding body is impaired.

According to the fifth aspect of the present invention, the engaging portion of the lid is inserted into the insertion portion of the sliding member when the connecting portion is not damaged. Therefore, when the connecting portion is broken, the engaging portion of the lid is securely supported by the supporting portion of the sliding member, and is securely engaged with the engaged portion of the sliding member. Is prevented.

According to the sixth aspect of the present invention, the engaged portion of the sliding member is inserted into the insertion portion of the lid when the connection portion is not damaged. Therefore, when the connecting portion is broken, the engaging portion of the lid is securely supported by the supporting portion of the sliding member, and is securely engaged with the engaged portion of the sliding member. Is prevented. In addition, since it is not necessary to form an engaged portion having a complicated shape on the sliding body, a mold for molding the sliding body is simplified, and the moldability of the sliding body is improved.

According to the seventh aspect of the present invention, both legs of the lid are inserted into the insertion portion of the sliding member when the connection portion is not damaged. Therefore, when the connecting portion is broken, the engaging portion of the lid is securely supported by the supporting portion of the sliding member, and is securely engaged with the engaged portion of the sliding member. Is prevented. In addition, since each leg is prevented from being removed from the insertion portion, the fall of the lid is more reliably prevented.

[Brief description of the drawings]

FIG. 1 is a diagram showing a first embodiment of the present invention (a longitudinal side view showing an entire configuration).

FIG. 2 is a longitudinal sectional side view showing an enlarged main part.

FIG. 3 is an exploded perspective view showing a sliding plate, a support plate, and a panel.

FIG. 4 is a perspective view showing the entire configuration.

FIG. 5 is a perspective view showing a cover and a panel.

FIG. 6 is a view showing a second embodiment of the present invention (a longitudinal side view showing a tip portion of a sliding plate and a panel).

FIG. 7 is a view showing a third embodiment of the present invention (a longitudinal sectional side view showing a hooking portion and a protrusion in an enlarged manner).

FIG. 8 is a view corresponding to FIG. 7, showing a fourth embodiment of the present invention;

FIG. 9 is a view corresponding to FIG. 7, showing a fifth embodiment of the present invention.

FIG. 10 is a view corresponding to FIG. 6, showing a sixth embodiment of the present invention;

FIG. 11 is a diagram corresponding to FIG. 3;

FIG. 12 is a view corresponding to FIG. 3, showing a seventh embodiment of the present invention.

FIG. 13 is a view corresponding to FIG. 3, showing an eighth embodiment of the present invention.

FIG. 14 is a diagram corresponding to FIG. 1 showing a conventional example.

FIG. 15 is a diagram corresponding to FIG. 3;

[Explanation of symbols]

12 is a main body frame, 13b is an exhaust port, 14a is an intake port, 15
Is a sliding plate (sliding body), 19 is a panel (lid), 1
9c is a boss portion (connecting portion), 20 is a screw fixing portion (supporting portion), 23 is a hooking portion (engaging portion), 23a is an insertion portion, 24
Is a projection (engaged portion), 24a is an R portion, 26 is a fan device, 30 is a hooking portion (engaged portion), 30a is an arm (supporting portion), 30d is an insertion portion, and 31 is a projection ( Engaging portion), 31a
Is an insertion portion, 31b is a leg portion, 31d is a retaining projection, 32 is a plate portion (engaged portion, support portion), 33 is a hook portion (engaged portion),
33a indicates an arm (supporting portion), and 33d indicates an insertion portion.

Claims (7)

[Claims] 1. A main body frame having an intake port and an exhaust port, a sliding body slidably provided on the main body frame, connected to a distal end of the sliding body via a connecting portion, and integrated with the sliding body. A lid that opens and closes the intake port as it moves to the air; a fan device that sucks air from the intake port and discharges the air from the exhaust port when the intake port is opened; and an engagement portion provided on the lid body. And a support portion provided on the sliding member to support the engaging portion from below and prevent the lid from falling when the connection portion is damaged, and a support portion provided on the sliding member and when the connection portion is damaged, A ventilating fan comprising: an engaged portion that engages with an engaging portion to prevent the lid from falling down in a direction away from the main body frame. 2. A sliding body is provided with an engaged portion projecting upward, and a lid is provided with a protruding engaging portion having an insertion portion, wherein the engaged portion is a connecting portion. The ventilation fan according to claim 1, wherein the ventilation fan is located below the insertion portion in a undamaged state, and enters into the insertion portion and engages with the engagement portion when the connection portion is damaged. 3. The engagement part of the lid and the engaged part of the sliding body are
2. The ventilation fan according to claim 1, wherein the connection portion is wrapped up and down in a non-damaged state. 4. The ventilation fan according to claim 1, wherein an R portion is provided at a tip end of the engaged portion of the sliding body at a corner on the lid side. 5. The sliding body is provided with a protruding engaged portion having an insertion portion, and the lid is provided with a protruding engaging portion directed downward. The ventilation fan according to claim 1, wherein the ventilation fan is inserted into the insertion portion in a state where the connection portion is not damaged. 6. A sliding body is provided with a protruding engaged portion, and the lid has a substantially L-shaped engaging portion forming an insertion portion that opens downward with the lid. The ventilation fan according to claim 1, wherein the engaged portion is inserted into the insertion portion in a state where the connection portion is not damaged. 7. A substantially L-shaped engaging portion having a pair of downwardly directed legs is provided on the lid, and the pair of legs is attached to the sliding member in a state where the connecting portion is not damaged. It is provided that a protruding engaged portion having an inserted insertion portion is provided, and that a tip end portion of each of the leg portions is provided with a retaining projection for preventing each of the leg portions from being removed from the insertion portion. The ventilation fan according to claim 1, characterized in that: