WO2011018997A1

WO2011018997A1 - Airflow diffusing device

Info

Publication number: WO2011018997A1
Application number: PCT/JP2010/063373
Authority: WO
Inventors: 俊孝田中; 勇気田中
Original assignee: Tanaka Toshitaka; Tanaka Yuki
Priority date: 2009-08-13
Filing date: 2010-08-06
Publication date: 2011-02-17

Abstract

The setting and adjusting tasks are simplified for the disclosed airflow diffusing device (diffuser fan), which has a vaned disc that diffuses the wind blowing out of a ventilation aperture. The ends of the spoke members of the airflow diffusing device that are on the side of a hub member are provided with a first key, a second key provided at a location on the opposite side from the location rotated a predetermined angle from the aforementioned first key, and an engaging member that engages an engaged member on the side of the aforementioned hub member while the aforementioned first and second keys are inserted in the aforementioned hub member. On the hub member of the airflow diffusing device are formed holes into which the main axles of the ends of the aforementioned spoke members are inserted, engaged members engaged with the engaging members on the side of the aforementioned spoke members, first key receiving sections that receive the aforementioned first key and hold the aforementioned spoke members at a first angle, and second key receiving sections that receive the aforementioned first and second keys and hold the aforementioned spoke members at a second angle that is different from the first angle.

Description

Airflow diffuser

[Description of related applications]
The present invention is based on the priority claim of Japanese Patent Application No. 2009-187775 (filed on Aug. 13, 2009), the entire contents of which are incorporated herein by reference. Shall.
The present invention relates to an air flow diffusing device (diffusion fan) that diffuses wind from an air conditioner (air conditioner), an air duct, or the like, and in particular, an air flow diffusing device (including an impeller that diffuses air blown from an air outlet) ( Diffusion fan).

It is said that if it is in a position where the cold air from the air conditioner directly hits it, it will affect the balance of the body as well as the coolness. In addition to a timer function that operates the air conditioner intermittently and a plurality of wind direction adjustment plates inside the air outlet, etc. It is also common to have a function that can change the wind direction up, down, left and right at various time intervals. In addition, air conditioners with a fluctuation function that controls the volume and direction of the wind close to natural wind have been commercialized.

Patent Document 1 discloses an air flow diffusion device (diffusion fan) filed by the present applicant. The air flow diffusion device includes a blade member, a spoke member, and a hub member that supports the spoke member, and the blade is disposed so that the wind blown down from the air outlet of the air conditioner hits the rotation track of the blade member It has the structure provided with the vehicle, the shaft member which comprises the rotating shaft of the said impeller, and the suspension member which suspends the said shaft member below the said air conditioner. According to the structure of this airflow diffusion device, the impeller rotates by the wind blown from the air outlet of the air conditioner, and the wind direction is intermittently changed by the blade member, so that the direct wind from the air conditioner It is possible to eliminate the uneven temperature in the room by intermittently blocking and scattering the air flow.

Japanese Patent No. 3717509

Note that the entire disclosure of Patent Document 1 is incorporated herein by reference. The following analysis is given by the present invention.
There are various types of air conditioners in which the airflow diffusion device of Patent Document 1 can be installed, such as a type in which an air outlet is provided on four sides of a square and an air outlet provided on a long side of a rectangle. In addition, the wind from the air blowing port changes depending on the operation mode of the air conditioner and the set room temperature. In order to cope with such a difference in the position of the air outlet and the strength of the wind, the airflow diffusion device of Patent Document 1 is designed so that the diameter of the impeller and the angle of each blade can be freely changed.

When installing such an airflow diffusion device (diffusion fan) of Patent Document 1, it is necessary to adjust the position and angle of each blade member so that the impeller can rotate stably. At this time, for example, if there is one blade member that is not at an appropriate angle, the impeller may stop.

The above adjustment work may be performed on a step ladder or a stepladder while assembling the impeller while watching the rotation condition, which increases the time required for installing the air flow diffusion device (diffusion fan) of Patent Document 1 It has become.

The present invention has been made in view of the above-described circumstances, and an object of the present invention is an air flow diffusion device (diffusion fan) having an impeller for diffusing wind blown from a blower opening, and its installation It is another object of the present invention to provide a configuration that can facilitate adjustment work and shorten the time required for the adjustment work.

According to the first aspect of the present invention, the blade member, the spoke member, and the hub member that supports the spoke member are configured such that the wind blown down from the air blower of the air conditioner hits the rotation track of the blade member. An impeller disposed; a shaft member that constitutes a rotating shaft of the impeller; and a holding member that holds the impeller downstream of the air outlet of the air conditioner, and blows out from at least the air outlet. An airflow diffusing device in which the impeller is capable of rotating by wind that is rotated, and the end of the spoke member on the hub member side is rotated by a predetermined angle from the first key and the first key. The second key provided on the opposite side of the position, and the engagement with the engaged member on the hub member side while the first and second keys are pushed into the hub member side The hub is provided with a member The material accommodates a hole into which the shaft main body at the end of the spoke member is inserted, an engaged member that engages with the engagement member on the spoke member side, and the first key. A first key receiving portion for holding the angle at a first angle; and a first key holding portion for holding the first and second keys, and a second angle for holding the angle of the spoke member at a second angle different from the first angle. There is provided an air flow diffusing device characterized in that two key accommodating portions are formed.

According to the present invention, installation and adjustment work of the airflow diffusion device is saved. The reason for this is that either the first angle or the second angle is selected according to the situation of the place where the airflow diffusion device is installed, and the spoke member is assembled to the hub member. The reason is that all the blades are configured to have the same angle.

It is a figure showing the whole structure of the airflow diffusion apparatus which concerns on the 1st Embodiment of this invention. It is a figure showing composition of a wing member and a spoke member of an air current diffusion device concerning a 1st embodiment of the present invention. FIG. 3 is an end cross-sectional view (A-A ′) of the spoke member of FIG. 2. It is a figure showing the structure of the hub member (center member) of the airflow diffusion apparatus which concerns on the 1st Embodiment of this invention. It is a figure for demonstrating the attachment operation | work of the spoke member to the hub member (center member) of FIG. It is a figure for demonstrating the operation | work which removes a spoke member from the hub member (center member) of FIG. It is a figure for demonstrating the attachment state in a 1st angle. It is a figure for demonstrating the attachment state in a 2nd angle. It is a figure for demonstrating the attachment state in a 2nd angle. It is a figure for demonstrating the installation work of the impeller to an air conditioner (air conditioner). It is a figure for demonstrating the installation work of the impeller to an air conditioner (air conditioner). It is a figure for demonstrating the attachment operation | work of the spoke member to the hub member (center member) of FIG.

Subsequently, a first embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a diagram showing the overall configuration of an airflow diffusion device according to the first embodiment of the present invention. Referring to FIG. 1, an impeller composed of a blade member 30, a spoke member 40, and a hub member (center member) 50 that supports the spoke member 40 is attached via an attachment member 10 fixed to a grill of an air conditioner. An airflow diffusing device attached below the air conditioner is shown.

1 When the operation of the air conditioner is started in the state installed as shown in FIG. 1, the wind blown down from the air blower hits the blade member, the impeller rotates, and the wind direction is changed intermittently.

FIG. 2 is a diagram showing the configuration of the blade member and the spoke member of the airflow diffusion device described above. Referring to FIG. 2, the blade member 30 has a spoke holding structure 32 attached thereto, and an end portion of the spoke member 40 is inserted and fixed to the spoke holding structure 32. In addition, an angle adjusting plate 34 for adjusting the attachment angle of the blade member 30 to the initial set angle is inserted outside the spoke holding structure 32 on the blade tip side. It is possible to change the diameter of the impeller or change the angle of each blade member 30 by loosening the screws provided in the spoke holding structure 32 and rotating the angle adjusting plate 34 to the outside. In the description of the embodiment, it is assumed that these changes are not performed.

2 is constituted by a hollow pipe, and a cap member is fixed to an end portion on the hub member side. The cap member is formed with a first key 41 and a second key 42 made of a resin such as ABS (acrylonitrile / butadiene / styrene), and an engaging member 43. By forming the first key 41, the second key 42, and the engaging member 43 on the cap member in this manner, a low-cost and easy-to-assemble configuration can be obtained. As shown in FIG. 12, the engaging member 43 includes a hub member (center member) 50 which will be described later as the spoke member 40 is inserted into the tip of a support member extending in parallel with the spoke member 40 at a predetermined interval. When the inclined member 43a and the spoke member 40 are completely inserted into contact with the corners of the arch-shaped shaft holding member 531a to elastically deform the support member of the engaging member 43 in the outer circumferential direction of the spoke member 40, the shaft holding member It has the engaging surface 43b to engage.

Further, a wire for connecting the cap member and the crushed ball 33 at the end portion on the blade member 30 side is incorporated in the hollow portion of the spoke member 40. This wire plays a role of holding the blade member 30 so as not to drop off even when the spoke member 40 is broken.

FIG. 3 is an end cross-sectional view (A-A ′) of the spoke member of FIG. 2. The first key 41 is set at a position such that the angle of the blade member 30 is a shallow angle, for example, 1 ° to 4 ° with respect to the horizontal plane. On the other hand, the second key 42 is opposite to the position rotated by the angle α from the first key 41, that is, its center line is at an angle of (180−α) ° with respect to the first key 41. It is provided to make. By bringing the second key 42 into contact with the horizontal plane, the angle of the blade member 40 can be switched to a deeper angle obtained by adding α ° to the angle set by the first key 41, for example. Become.

FIG. 4 is a diagram showing the configuration of the hub member (center member) of the airflow diffusion device described above. Referring to FIG. 4, a hub member (center member) 50 is fastened to a mounting member 10 fixed to a grill of an air conditioner via a cap nut 55 and constitutes a rotating shaft of an impeller (shaft member). And an upper member 51 and a lower member 53 that are rotatably mounted via a bearing supported by a bolt head at the lower end of the bolt.

The upper member 51 and the lower member 53 are detachable through the claw 535, and the spoke member 40 is attached in the state of being separated as shown in FIG. Are combined as shown in FIG.

The lower member 53 includes arch-shaped

shaft holding members

531a and 531b for holding the inserted spoke member 40, and a recess 532 formed in accordance with the shape of the first key 41 and the second key 42, A fixing member 533 is provided to fix the first key 41 accommodated between 534 and the recess 532. Since the shaft holding member 531a has an arch shape as shown in FIGS. 5, 8, and 12, the angle in the circumferential direction when the spoke member 40 is inserted (that is, the pitch of the blade member 30). Even if the angle is changed, the spoke member 40 can function as an engaged member with respect to the engaging member 43.

FIG. 5 and FIG. 12 are diagrams for explaining the attaching operation of the spoke member 40 to the hub member (center member) 50. FIG. For example, as shown in FIG. 5, when the spoke member 40 is inserted into the hole of the hub member (center member) 50 by inserting the first key 41 below the fixing member 533, the lower end of the engagement member 43 is lowered. The inclined surface 43a comes into contact with the shaft holding member 531a and the engaging member 43 is lifted. When the spoke member 40 is pushed to the end, the engagement surface 43b continuous with the inclined surface 43a at the tip of the engagement member 43 is engaged with the shaft holding member 531a, and the spoke member 40 is moved by the first key 41. Locked at a shallow angle determined.

FIG. 6 is a view showing an attachment state at a first angle in which the first key 41 is inserted below the fixing member 533. The first key accommodating portion is a space constituted by the fixing member 533 and the concave portion 532 below the fixing member 533.

Thus, by inserting all the spoke members 40 so that the first key 41 is inserted below the fixing member 533, all the blade members 30 of the impeller are set at a shallow angle.

FIG. 7 is a view for explaining an operation of removing the spoke member 40 from the state of FIGS. 5 and 6. When removing the spoke member 40, the spoke member 40 can be pulled out by lifting the tip of the engagement member 43 lightly and releasing the engagement with the shaft holding member 531a.

As described above, after the spoke member 40 is pulled out, the spoke member 40 is moved to the hub member (center member) 50 so that the first key 41 is positioned above the fixing member 533 as shown in FIGS. As it is inserted into the hole, the inclined surface 43a at the tip of the engagement member 43 comes into contact with the shaft holding member 531a and the engagement member 43 is lifted. When the spoke member 40 is pushed to the end, the engagement surface 43b continuous with the inclined surface 43a at the tip of the engagement member 43 is engaged with the shaft holding member 531a, and the spoke member 40 is connected to the first key 41 and the It is locked at a deep angle determined by the second key 42.

FIG. 9 is a diagram showing an attachment state at the second angle in which the first key 41 is inserted in a state of being positioned above the fixing member 533. As shown in FIG. 9, the upper surface of the fixing member 533 is inclined in a direction toward the axial center of the spoke member 40 so that the first key 41 can be stably placed. The second key housing portion is a space defined by a fixing member 533 and a recess 534 that fits the second key 42.

Thus, by inserting all the spoke members 40 so that the first key 41 is positioned above the fixing member 533, all the blade members 30 of the impeller are set at a deep angle.

FIG. 10 and FIG. 11 are diagrams for explaining the installation work of the impeller to the air conditioner. The upper end of the side surface of the pedestal fitting 11 screwed to the mounting member 10 in FIG. 10 is open, and a U-shaped groove that communicates with the opening and extends from the lower side surface to the lower surface is provided. As shown by the arrow in the left figure of FIG. 10, when the cap nut 55 is inserted into the U-shaped groove from the opening on the side surface of the base metal fitting 11 and moved downward, as shown in the right figure of FIG. The cap nut 55 comes into contact with the lower side surface of the base metal 11 and is locked.

After that, as shown in the left figure of FIG. 11, when the upper member of the hub member (center member) 50 is rotated, the intermediate nut built in the upper member is tightened, and the right figure of FIG. As described above, the impeller is fixed immediately below the grill of the air conditioner.

As described above, according to the present embodiment, it is possible to save labor in the installation work of the air flow diffusion device having the impeller for diffusing the wind blown from the blower opening and the angle adjustment work of the blade member. In particular, in the present embodiment, the first and second key accommodating portions are provided adjacent to each other in the circumferential direction around the hole provided in the hub member (center member) 50, and Since it is configured so as to be separated by the fixing member 533, the blade member 30 can be set by an intuitive operation of putting the first key 41 on or below the fixing member 533. . For this reason, even an unfamiliar person can easily perform the installation / adjustment work of the airflow diffusion device having the impeller.

The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and further modifications, replacements, and replacements may be made without departing from the basic technical idea of the present invention. Adjustments can be made. For example, in the above-described embodiment, in addition to the first and

second keys

41 and 42, an arch-shaped shaft holding member, an inclined surface lifted by the shaft holding member, and an engagement surface that engages with the shaft holding member In the above description, the spoke member 40 is fixed to the hub member (center member) 50 by using the engaging member having the engagement member. However, a hole is formed in one or both of the spoke member 40 and the shaft holding member to reach a predetermined position. It is also possible to adopt a configuration in which, when inserted, a biased pin or the like is locked by entering the hole.

Further, in the above-described embodiment, in consideration of the aesthetics in the installed state, a configuration is adopted in which a hub member (center member) that can be divided vertically is used so that the opening portion does not appear as much as possible after assembly. It is also possible to employ other configurations having the key accommodating portion exemplified in FIG. Of course, the positional relationship (first and second angles) of the first and second keys is not limited to the combination exemplified in the above-described embodiment, and can be changed as appropriate.

It should be noted that the disclosures of the above patent documents are incorporated herein by reference. Within the scope of the entire disclosure (including claims) of the present invention, the examples and the examples can be changed and adjusted based on the basic technical concept. Various combinations and selections of various disclosed elements are possible within the scope of the claims of the present invention. That is, the present invention includes various modifications and corrections that can be made by those skilled in the art according to the entire disclosure including the claims and the technical idea.

DESCRIPTION OF SYMBOLS 10 Mounting member 11 Base metal fittings 30 Blade member 32 Spoke holding structure 33 Squash ball 34 Angle adjustment plate 40 Spoke member 41 1st key 42 2nd key 43 Engagement member 43a Inclined surface 43b Engagement surface 50 Hub member (Center member) )
51 Upper member 53 Lower member 55

Cap nut

531a, 531b

Shaft holding member

532, 534 Recessed portion 533 Fixing member 535 Claw

Claims

An impeller comprising a blade member, a spoke member, and a hub member that supports the spoke member, and disposed so that wind blown down from a blower opening of an air conditioner hits a rotation track of the blade member; and the impeller And a holding member that holds the impeller downstream of the air outlet of the air conditioner, and at least the impeller can be rotated by wind blown from the air outlet. An air flow diffusion device,
At the end of the spoke member on the hub member side, a first key, the second key provided on the opposite side of the position rotated by a predetermined angle from the first key, and the first key An engaging member that engages with an engaged member on the hub member side in a state in which the first key is pushed into the hub member side;
The hub member accommodates the hole into which the shaft main body at the end of the spoke member is inserted, the engaged member that engages with the engagement member on the spoke member side, and the first key, and the spoke A first key receiving portion that holds the angle of the member at the first angle, and the first and second keys are held, and the angle of the spoke member is held at a second angle different from the first angle. And a second key storage portion formed therein.
The first and second key accommodating portions are provided adjacent to each other in a circumferential direction centered on the hole of the hub member, and the first key accommodating portion and the second key accommodating portion. Is separated by a fixing member forming a side wall of the first key housing portion.
The airflow diffusing device according to claim 1 or 2, wherein a cap member is fitted to an end portion of the spoke member, and the first and second keys and an engaging member are formed on the cap member.
The engaged member of the hub member is an arch-shaped shaft holding member that houses the shaft body of the spoke member,
The engagement member includes a support member that extends substantially parallel to the spoke member, and contacts the corner of the shaft holding member as the spoke member is inserted into a tip of the support member so that the support member is moved to the spoke member. 4. The air flow diffusing device according to claim 1, further comprising: an inclined surface that is elastically deformed in an outer peripheral direction of the first member; and an engaging surface that engages with the shaft holding member when the spoke member is inserted for a predetermined length.