JP3399762B2 - Ventilation equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation device provided on a door body such as a bathroom door or a folding door.

[0002]

2. Description of the Related Art Heretofore, as this type of ventilator, one described in Japanese Utility Model Laid-Open No. 59-132890 has been known. In this ventilation device, a door body is provided with a ventilation passage that communicates indoors and outdoors, and the ventilation passage is opened and closed by a damper member that is rotatably provided around the upper support shaft portion in the door body. Has become. Further, a leaf spring for urging the upper end portion of the damper member in the prospective direction is provided in the door body, and the damper member is held in the open state by contacting the lower end portion with the inner surface of the door body by the leaf spring. ing. Further, the door body is provided with an operation member that slides in the finding direction,
When closing the ventilation passage, the ventilation passage is slid so that the operating protrusion formed on the operating member and the protrusion formed on the upper end portion of the damper member are brought into abutment with each other. As a result, the upper end of the damper member is pressed against the leaf spring, and the damper member rotates to close the ventilation passage.

[0003]

In such a conventional ventilator, since the operating member is slid to press the upper end portion in the prospective direction to rotate the damper member, the supporting member is not supported. It is necessary to provide a space above the shaft to allow the upper end of the damper member to rotate. For this reason, it is necessary to increase the vertical space of the ventilation device, and it is necessary to increase the width of the frame in which the ventilation device is incorporated, resulting in high cost. Further, since the protrusion is directly formed on the upper end portion of the damper member, the flat plate-shaped damper member is dedicated to the corresponding door body, which also results in high cost.

Further, since the damper member is held in the open position by abutting against the inner surface of the door body due to the elasticity of the leaf spring, the damper member swings due to the vibration accompanying the opening and closing of the door and rattling noise. Will occur. In addition, the rattling of the damper member may peel off the coating such as alumite on the inner surface of the door body and cause corrosion.

The present invention has been made in order to solve the above problems, and the ventilation device itself can be made compact, and the cost can be reduced. It is an object of the present invention to provide a ventilation device that can prevent the occurrence of corrosion.

[0006]

SUMMARY OF THE INVENTION A ventilation device according to the present invention is provided with a ventilation passage provided in a door body for communicating between the inside and the outside, and a closed position and a ventilation passage provided in the door body for closing the ventilation passage. a damper member configured to be rotatable between an open position to open the and supports the damper member rotatably
A support shaft portion that extends in the door body finding direction together, an operation member that operates the damper member by reciprocally sliding in the door body finding direction, and is provided between the operation member and the damper member ,
Open the damper member in conjunction with the forward movement of the operating member.
In the backward direction of the first cam mechanism and the operating member that rotate
Second movement of the damper member to the closed position in conjunction with sliding
In the ventilation device having a cam mechanism , the support shaft portion is arranged in the prospective direction with respect to the first cam mechanism and is disposed at the same height position, and the first cam mechanism includes the damper member. Sandwich the
Expected direction provided on the opposite side of the support shaft portion, forward of the operating member
Direction is converted to upward movement to open the damper
The second cam mechanism to clamp the damper member
On the opposite side of the spindle in the viewing direction and near the lower side of the first cam mechanism
It is provided by the side, and the backward sliding of the operating member
It is characterized in that the damper is rotated to the closed position by converting it into the movement of .

According to this structure, when the operating member is slid in the finding direction, the first cam mechanism causes the damper member to move in the vertical direction, and at the same time, pivots about the support shaft portion to the closed position and the open / closed position. To do. In this case, the first cam mechanism may be provided at a position separated from the support shaft portion in the prospective direction, and thus can be provided at the same height as the support shaft portion. Therefore, the vertical space of the damper member can be reduced. Also, open the damper member to the first cam mechanism.
The second cam mechanism, while providing the function to rotate
It has a function of rotating the damper member to the closed position.
Then, the second cam mechanism causes the damper member to move in the prospective direction.
The second cam mechanism of the second cam mechanism
Force can be applied directly in the direction to close the damper member.
The ventilation passage can be closed airtightly. Also,
The 2-cam mechanism is provided near the first cam mechanism.
To operate the first and second cam mechanisms with one operating member.
It is possible to do it, and space for the up and down direction
No need to make it big.

In this case, the first cam mechanism is composed of a cam surface provided on one of the damper member and the operating member and a cam projection provided on the other, and the cam surface is in the sliding direction of the operating member. Preferably, the movable cam surface is inclined with respect to the stationary cam surface, and the stationary cam surface is continuous with the movable cam surface. The stationary cam surface preferably extends in a direction orthogonal to the rotation direction of the damper member.

According to this construction, when the operating member is slid, the cam projection is in sliding contact with the movable cam surface, the damper member is rotated, and the operating member is slid further, so that the cam projection is stationary. Reach the surface. In this state, the movable direction of the cam projection and the movable direction of the stationary cam surface are orthogonal to each other, so that the rotating damper member slides the operating member out of the force to return to the position before the rotation. The component force to move is zero, the operating member does not slide, and the damper member can be reliably held at the rotated position.

[0010]

[0011]

In this case, the second cam mechanism is composed of a closing cam surface provided on one of the damper member and the operating member and a closing cam projection provided on the other side, and the closing cam surface is formed on the operating member. A closed movable cam surface inclined with respect to the sliding direction,
It is composed of a closed stationary cam surface connected to the closed movable cam surface,
The closed stationary cam surface preferably extends in a direction orthogonal to the rotation direction of the damper member.

According to this structure, when the operating member is slid, the closing cam projection is brought into sliding contact with the closing movable cam surface, the damper member is rotated to the closing position, and the operating member is further slid. As the closing cam projection reaches the closing stationary cam surface, the damper member rotates to the closing position. In this state, the movable direction of the closed cam protrusion and the movable direction of the closed stationary cam surface are orthogonal to each other, so that the damper member that has rotated to the closed position returns to the position before the rotation. , The component force to slide the operating member becomes zero,
The operating member does not slide, and the damper member can be reliably held in the closed position.

In these cases, the tip of the damper member is
It is preferable that a seal member is provided.

According to this structure, when the damper member is rotated to the closed position and the open position by the operating means,
The seal member comes into contact with the inner surfaces of the front surface plate portion and the rear surface plate portion in preference to the tip end portion of the damper member itself. Therefore, even if the damper member swings as the door is opened and closed, the rattling of the damper member is absorbed by the seal member, and the rattling noise can be prevented. Further, since the tip of the damper member itself does not directly contact the front plate and the rear plate, the alumite coating on the inner surface of the front plate and the rear plate does not peel off. Therefore, it is possible to effectively prevent corrosion on the inner surfaces of the front surface plate portion and the rear surface plate portion. Further, since the damper member itself is provided with the seal member, the amount of use of the seal member is reduced as compared with the case where the seal members are provided respectively on the front surface plate portion and the rear surface plate portion where the tip end portion of the damper member abuts. be able to.

[0016]

[0017]

In these cases, the first cam mechanism and the second cam
The mechanism is composed of a cam portion having a cam surface provided on either the damper member or the operating member, and a cam protrusion provided on the other.
The cam portion or the cam projection provided on the damper member is configured separately from the damper member .
Preferred .

According to this structure, since the cam portion or the cam projection provided on the damper member is formed separately from the damper member, the damper member and the cam portion can be formed separately. Therefore, the damper member is a dedicated part,
The cam mechanism can be a general-purpose component.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a ventilation device according to the present invention will be specifically described below with reference to the accompanying drawings. FIG. 1 is a front view of a bathroom door to which the ventilation device according to the present embodiment is applied, as seen from inside the bathroom. As shown in this figure, the door 1 is configured by incorporating a door body 3 into a door frame 2. The frame body 2 is composed of an upper frame 4, a lower frame 5 and both vertical frames 6 and 6, and is appropriately screwed to the opening of the bathroom.

As shown in FIG. 2, a step portion 5a is formed on the lower frame 5 by lowering the indoor side (bathroom side) by one step, and the upper portion of the step portion 5a is in close contact with the door body 3. The seal member 7 is attached. In addition, a protruding piece 4a that protrudes downward is provided at the edge of the lower outdoor side (dressing room side) of the upper frame 4.
Is formed, and a seal member 7 is formed at the tip of the protruding piece 4a.
Is attached. Although not shown, the vertical frame 6,
Similarly, a seal member 6 is extended. Thereby, the space between the door body 3 and the frame body 2 is sealed over the four circumferences.

On the other hand, the door body 3 is made up of an upper frame 11, a lower frame 12, a vertical frame 13 and a door stop side vertical frame 14, and a horizontal rail 15 between the upper frame 11 and the lower frame 12. Embedded,
The upper and lower panel bodies 16 and 16 are attached to this. A door stopper 17 for preventing the door body 3 from hitting the wall in the bathroom when the door body 3 is opened is provided on the door stop side of the upper frame 11. Further, the horizontal rail 15 is provided with a door knob 18 and a towel rack 19 is attached. Furthermore, the lower frame 12
A ventilation device 20 for ventilating the bathroom is provided.

Here, the ventilation device 2 provided on the lower frame 12
0 will be described in detail. As shown in FIG. 2, the lower frame 12 is
It is composed of the lower frame main body 21 and the middle rail 22 provided on the upper side thereof, and the ventilation openings 23 and 24 are formed inside and outside the bathroom by utilizing the interval between the lower frame main body 21 and the middle rail 22. There is. These ventilation openings 23, 24 are provided at a position where the ventilation opening 24 on the outside of the bathroom is higher than the ventilation opening 23 on the inside of the bathroom, and are formed in different steps so that water droplets flow to the bathroom side. A ventilation passage 25 that connects the ventilation ports 23 and 24 is formed in the lower frame 12, and the ventilation passage 25 is slid in the finding direction by sliding the operating member 41 attached to the lower frame 12. Damper member 31 built in the lower frame 12
Is opened and closed by rotating to the open position and the closed position of the ventilation passage 25.

As shown in FIG. 3, the lower frame main body 21 and the middle rail 22 are both formed of extruded shape members, and the protruding portion 2 projecting upward is formed at the outer edge of the upper part of the lower frame main body 21.
1a is extended. On the other hand, the middle rail 22 is formed in an inverted "J" shape in cross section, the long portion 22a is located on the indoor side, the short portion 22b is located on the outdoor side, and the upper portion is spaced apart from the lower frame 12 upward. ing. As a result, the indoor-side ventilation port 23 is formed by the indoor-side edge portion of the upper portion of the lower frame main body 21 and the lower end portion of the elongated portion 22a of the middle rail 22.
An outdoor ventilation port 24 is formed by the upper end of the protruding portion 21a and the lower end of the short portion 22b. Further, an opening (not shown) for mounting the operation member 41 is formed in the long portion 22a of the middle rail 22, and this opening is formed over the range in which the operation member 41 should slide in the finding direction. ing.
Further, the damper member 31 is attached to the short portion 22b of the middle rail 22.
A bearing portion 22c for rotatably supporting is provided.

The lower frame 12 is composed of a lower frame main body 21 and a middle rail 22, which are molded separately, but the present invention is not limited to this, and a hollow lower frame is provided with its inner side. Ventilation openings having different levels may be formed on the outside and the outdoor side, respectively. Moreover, you may form a ventilation port directly in the door body which has a surface board part and a back surface board part.

As shown in FIG. 4, the operating member 41 has an operating plate 42, and in the center of the surface thereof, an operating portion 43 is formed in which the edge is raised and the inside is recessed. The characters "open" and "closed" are formed on the left and right sides of the operation unit 43 by shallow engraving. Further, a pair of cam protrusions (open cam protrusion 44, closing cam protrusion 45) are provided on the back surface of the operation plate 42 in the vertical direction. The operation member 41 thus configured is mounted on the middle rail 22 by inserting the cam projections 44 and 45 into the lower frame 12 from the outside through the opening of the middle rail 22. Then, the cover 48 having the opening 49 formed at the center is provided from the outside of the operation member 41 to the middle rail 2.
The operation portion 43 of the operation member 41 is fitted into the opening 49. The letters "open" or "closed" of the operating member are exposed from the opening 49, and when the operating member 41 is operated, the open state or the closed state of the ventilation device 20 can be seen at a glance. .

As shown in FIG. 3, the damper member 31 is formed by a plate-shaped extruded shape member, and has a ventilation port 24 on the outdoor side.
Is formed to be slightly longer than the length in the finding direction. A support shaft portion 32 that rotatably supports the damper member 31 is formed on the upper portion (base end portion) of the damper member 31.
A block-shaped cam portion 34 having a cam surface is screwed to the opposite side of the support shaft portion 32 with 1 in between. Further, the lower end portion of the damper member 31 is formed in a downward C-shaped cross section, and a seal member 35 having an inverted V-shaped cross section is attached to this portion.

The cam portion 34 is integrally constituted by an opening cam 36 and a closing cam 37 provided below the opening cam 36. The open cam 36 has a movable cam surface (open movable cam surface) 36a that is inclined with respect to the finding direction and is directed obliquely downward, and a stationary cam surface (open stationary cam surface) that is continuous with this and is parallel to the finding direction and downward. 36b are formed. On the other hand, the closing cam 37 has a movable cam surface (closed movable cam surface) 37a that is inclined with respect to the finding direction and is directed obliquely toward the front, and a stationary cam surface (closed movable cam surface) that is parallel to the finding direction and is directed toward you (closed). Stationary cam surface) 37b is formed. Then, the movable cam surfaces 36a and 37a and the stationary cam surfaces 36b and 3 of the cam portion 34 configured as described above.
7b and cam projections 44, 45 provided on the operation member 41.
And constitute a cam mechanism for rotating the damper member 31.

Specifically, the open cam 36 of the cam portion 34 and the open cam protrusion 44 of the operating member 41 constitute a first cam mechanism 40A for rotating the damper member 31 to the open position, and the closing cam 37. The closing cam projection 45 constitutes a second cam mechanism 40B for rotating the damper member 31 to the closing position (see FIG. 2).

Next, the operation of the ventilation device 20 will be described. When opening the ventilation passage 25 and opening the ventilation device 20, first, a fingertip is inserted into the operation portion 43 of the operation member 41, and the operation member 41 is moved in the direction A shown in FIG. Then, the opening cam protrusion 44 slides from the upper part to the lower part of the movable cam surface 36a of the opening cam 36.
In this case, since the vertical position of the opening cam projection 44 does not change, the damper member 31 is also lifted upward as the opening cam 36 is lifted, and is rotated about the support shaft portion 32. . And the operation member 41
When is further moved in the A direction, the open cam protrusion 44 reaches the open stationary cam surface 36b, and the rotation of the damper member 31 is stopped. At this time, the seal member 35 provided at the tip of the damper member 31 abuts on the inner surface of the long portion 22a of the middle rail 22, and the damper member 31 is held at the open position (FIG. 2).
reference). As a result, the ventilation passage 25 is opened, the ventilation device 20 is opened, and it becomes possible to ventilate the bathroom.

Further, in this state, the open stationary cam surface 36b is
Since the movable direction of the open cam projection 44 and the movable direction of the opening cam projection 44 are orthogonal to each other, a component force for sliding the operating member out of the force for returning the damper member 31 to the position before the rotation. Is zero and the operating member 41 does not move. Therefore, the damper member 31 is securely held at the open position without rattling due to the weight of the damper member or the vibration caused by the opening / closing of the door body 3.

On the other hand, when the ventilation passage 25 is closed and the ventilation device 20 is closed, the operating member 41 is moved in the B direction, contrary to the case where the ventilation device 20 is opened. Then, the open movable cam surface 36a moves downward while slidingly contacting the upper part of the open cam protrusion 44, and the open cam 36 and the damper member 31 lifted by the open cam protrusion 44 are moved to the positions before the rotation. And returns. At this time, the tip of the closing cam projection 45 contacts the closing movable cam surface 37a of the closing cam 37 and slides from the back side of the closing movable cam surface 37a to the front side. When the operating member 41 is further moved in the B direction, the closing cam projection 45 reaches the closing stationary cam surface 37b and presses the damper member 31 in the prospective direction via the closing cam 37. As a result, the seal member 35 comes into close contact with the inner side surface of the projecting portion 21a of the lower frame main body 21 and holds the damper member 21 in the closed position (see FIG. 2). As a result, the ventilation passage 25 is closed, the ventilation device 20 is closed, and the airtightness in the bathroom can be increased.

In this state, the stationary cam surface 37b is closed.
Since the movable direction of the closing cam projection 45 and the sliding direction of the closing cam projection 45 are orthogonal to each other, the operating member 41 is slid in the force that the damper member 31 tries to rotate in the opening position. The component force becomes zero, and the operation member 41 does not move. Therefore, the damper member 31 does not rattle when the door body 3 is opened or closed, and is reliably held at the closed position.

As described above, in this embodiment, the cam portion 34 is provided at the base end portion of the damper member 31, and the cam projections 44 and 45 are provided at the operation member 41 to form the cam mechanism. By sliding the member 41 in the finding direction, the damper member 31 can be easily rotated to the open position and the closed position. Further, since the cam mechanism can be provided at the same height as the support shaft portion 32 of the damper member 31, the vertical space of the damper member 31 can be reduced. Therefore, the ventilation device 2
The width of the lower frame 12 in which 0 is incorporated in the vertical direction can be made smaller than in the conventional case, and the production cost can be reduced.

Further, the cam member 34 includes a damper member 31.
Open and closed stationary cam surface 36 orthogonal to the direction of rotation of the
Since b and 37b are formed, even if the damper member 31 tries to return to the position before the rotation due to the vibration caused by the opening and closing of the door body 3, the cam portion 34 is locked by the cam protrusions 44 and 45, and the damper is formed. The member 31 does not rotate. Therefore, the damper member 31 does not rattle, and the damper member 31 can be reliably held in the open position and the closed position. Further, since the seal member 35 is attached to the tip end portion of the damper member 31, the seal member 35 absorbs an impact when the ventilation device 20 is opened and closed, and an impact noise can be prevented from being generated. In addition, even if the ventilation device 20 is repeatedly opened and closed, the coating on the inner surface of the lower frame 12 will not be peeled off, and corrosion of the inner surface of the lower frame 12 can be effectively prevented. Furthermore, since the cam portion 34 is configured separately from the damper member 31, the cam portion 34 can be attached at an arbitrary position according to the shape of the ventilation device 20, the arrangement position of the operation member 41, and the like. . That is, the damper member can be a dedicated component and the cam portion 34 can be a general-purpose component, and the production efficiency can be improved.

In the present embodiment, the damper member 31 is provided with the cam portion 34, and the operation member 41 is provided with the cam protrusion 4.
Although 4, 45 are provided, it goes without saying that a cam projection may be provided on the damper member 31 and a cam portion may be provided on the operation member 41. Further, the opening cam portion 32 and the closing cam portion 33.
Are formed side by side in the vertical direction, but they may be arranged in the finding direction.

[0037]

As described above, according to the present invention,
Since the space in the vertical direction of the damper member can be made smaller than in the conventional case, the ventilation device itself can be made compact and the cost can be reduced. Further, since the stationary cam surface extending in the direction orthogonal to the rotation direction of the damper member is formed on the cam surface, the damper member can be held at the open position and the closed position without rattling. . Further, since the seal member is provided at the tip of the damper member, it is possible to effectively prevent corrosion of the inner surfaces of the front plate and the rear plate. Furthermore, since the cam portion or the cam projection provided on the damper member is formed separately from the damper member, the production efficiency of the ventilation device can be improved.

[Brief description of drawings]

FIG. 1 is a front view of a bathroom door to which a ventilation device according to an embodiment of the present invention is applied, as seen from inside the bathroom.

FIG. 2 is an enlarged view showing a cross section taken along the line AA of FIG.

FIG. 3 is an exploded perspective view showing the vicinity of a cam mechanism of the ventilation device.

FIG. 4 is a view showing an operation member, (a) is a front view,
(B) is a side view.

[Explanation of reference numerals] 3 door body, 25 ventilation passage, 31 damper member, 32
Support shaft portion, 34 cam portion, 35 seal member, 36 opening cam, 36a opening cam surface, 36b opening stationary cam surface,
37 closed cam, 37a closed stationary cam surface, 37b closed stationary cam surface, 40 cam mechanism, 41 operating member, 44
Open cam projection, 45 closed cam projection

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) E06B 7/16-7/24 E06B 7 / 06,7 / 10 F24F 13/14

Claims (5)

(57) [Claims] 1. A ventilation passage, which is provided in a door body and communicates with the inside and outside of the door body, and a ventilation passage which is provided inside the door body and closes the ventilation passage and an open position which opens the ventilation passage. A damper member configured to be movable and a direction in which the damper member is rotatably supported and the door is found.
A support shaft portion that extends in the direction of, and an operating member that operates the damper member by reciprocatingly sliding in the finding direction of the door body,
Is provided between the operation member and the damper member ,
The damper member is opened in conjunction with the forward movement of the operating member.
Of the first cam mechanism and the operation member for rotating to the release position
Rotate the damper member to the closed position in conjunction with the backward sliding.
A second cam mechanism for moving the first cam mechanism, the support shaft portion being spaced apart from the first cam mechanism in a prospective direction, and being disposed at a height position substantially the same as the first cam mechanism. the sandwiching the damper member, and the support shaft portion in the expected direction provided on the opposite side, forward of said operating member
Open the damper by converting sliding in the direction to upward movement
And the second cam mechanism sandwiches the damper member,
On the opposite side to the support shaft portion and below the first cam mechanism.
Is provided near the side, and the sliding of the operating member in the backward direction is expected.
Rotate the damper to the closed position by converting it to the movement in the normal direction
Ventilator, characterized in that cause. 2. The first cam mechanism includes a cam surface provided on one of the damper member and the operating member and a cam projection provided on the other, and the cam surface is the operating member. Of the movable cam surface and a stationary cam surface continuous with the movable cam surface, the stationary cam surface extending in a direction orthogonal to the rotation direction of the damper member. Claim 1 characterized in that
Ventilation device according to. 3. The closing cam surface provided on one of the damper member and the operating member, the second cam mechanism,
The closing cam projection is provided on the other side, and the closing cam surface includes a closing movable cam surface inclined with respect to the sliding direction of the operating member, and a closing stationary cam surface continuous with the closing movable cam surface. The ventilation device according to claim 1 or 2 , wherein the closed stationary cam surface extends in a direction orthogonal to a rotation direction of the damper member. The tip of claim 4 wherein said damper member, also claim 1, characterized in that the sealing member is provided
Is the ventilation device described in 3 . 5. The first cam mechanism and the second cam machine.
Structure, the cam portion having a cam surface provided on one of the damper member and said operating member is constituted respectively by a cam projection provided on the other, the cam portion or the provided in the damper member The ventilation device according to any one of claims 1 to 4 , wherein the cam projection is formed separately from the damper member.