JP3104549B2 - Lifting unit lifting device and air conditioner including the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner installed at a high place, and an elevating unit elevating device for elevating an elevating unit including required functional parts with respect to the air conditioner main body, and an air containing the same It relates to a harmony device.

[0002]

2. Description of the Related Art An air conditioner is sometimes installed at a high place. In this case, it is difficult to attach or detach functional components that require replacement or cleaning at a high place. Therefore, an air conditioner provided with an elevating unit including required functional components and an elevating device for suspending and elevating the elevating unit with a wire or the like is provided.

Conventionally, as an elevating device, Japanese Patent Application Laid-Open No. 6-129
No. 705 was disclosed. In this lifting device,
The central portions of the pair of opposite sides of the lifting unit are suspended by the respective wires. In this lifting device,
Since the lifting unit is suspended only by two wires,
The lifting unit rocked and it was easy to tilt. As an elevating device, there is one disclosed in Japanese Utility Model Laid-Open No. 1-88722. This elevating device has four wires hanging at four corners of the elevating unit, and a pair of winding members arranged coaxially. Then, two wires hanging two adjacent corners of the elevating unit are wound around substantially the same portion of one winding drum member. In this elevating device, as described above, the two wires are wound around substantially the same portion of the winding drum member, so that the wires overlap on the peripheral surface of the winding drum member. As a result, the winding amounts of the respective wires were varied, and the elevating unit was easily inclined.

[0004] When the elevating unit is tilted as described above, there is a possibility that oil may spill from an oil pan, for example. In order to prevent this, it is preferable that the lifting unit is raised and lowered in a straight state without being inclined. Therefore, the inventor of the present application considered that it is preferable that the four corners of the lifting unit be suspended by the wires and that each wire be wound up by an equal amount by an individual winding drum member. Further, the inventor of the present application has devised that a winding groove for guiding winding of the wire is formed on the outer peripheral surface of each winding drum member. According to this, it is possible to prevent a situation in which the wire is wound twice or three times around the winding drum member and the winding diameter of the wire changes, and it is expected that a uniform winding diameter can always be secured. Is done.

[0005] However, if the elevating unit swings for some reason, the wire swings as a result, which may cause the wire to come off the corresponding winding groove and be wound twice in the adjacent winding groove. In this case, the winding amount becomes unbalanced between the winding drum members, and the elevating unit is inclined. SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a lifting and lowering apparatus capable of preventing a tilt of a lifting and lowering unit caused by an imbalance in a winding amount between respective winding drum members. An object of the present invention is to provide a unit elevating device and an air conditioner including the same.

[0006]

To achieve Means and operation for solving the problems] The above object, the lifting unit lifting device according to 請 Motomeko 1, a predetermined raised position accommodated in the air conditioner main body installed in a high place An elevating unit elevating device that is capable of ascending and descending to a predetermined descending position suspended below the air conditioner main body and that includes a required functional component, and that moves up and down with respect to the air conditioner main body. A suspending member that suspends the four corners of the elevating unit, a suspending pulley that suspends a corresponding suspending member provided in the air-conditioning apparatus body substantially above each of the four corners of the elevating unit, Four winding drums provided on the air conditioner main body substantially above each of the four corners, and respectively winding the corresponding hanging members via the corresponding hanging pulleys. And wood, are formed on the outer peripheral surface of each volume body member, a spiral winding groove for guiding the winding of hanging members to each volume body member, further comprising a drive unit for rotating the each volume body member This is the first feature. Further
In addition, the lifting unit lifting device according to claim 1,
The material passes through a plurality of pulleys, including the above-mentioned hanging pulley, respectively.
The second feature is that the corresponding suspending member is wound up by
Things.

[0007] According to the first feature , each of the winding members is rotated by the driving device, so that the hanging members hanging the four corners of the elevating unit are wound or wound by the corresponding winding members. The lifting unit is raised and lowered. At this time, the winding of the hanging member on the winding drum member and the unwinding of the hanging member from the winding drum member are guided via the hanging pulley. Even if the elevating unit swings for some reason and the part suspended from the suspension pulley of the suspension member swings with this, this swing is transmitted to the winding drum member side. Is hindered by the suspension pulley, and the portion of the suspension member between the suspension pulley and the winding drum member is unlikely to swing. Therefore, the hanging groove does not fall off the hanging member.

Further, according to the second feature, each of the winding drums
The member winds the suspension member through a plurality of pulleys
The winding drum compared to winding it through a single pulley
More reliably prevent swinging of the hanging member near the member
As a result, it is possible to prevent the suspension member from falling out of the winding groove.
Can be reliably prevented. In the present invention, since the winding drum members are arranged above the four corners of the lifting unit,
In order to suspend the four corners of the elevating unit, the four corners of the elevating unit can be suspended directly from each winding drum member via the suspending member. However, transmission of swing of the suspending member is prevented. A hanging pulley was adopted as a means .

[0009] The lifting unit lifting device according to the 請 Motomeko 2,
The lifting unit lifting device according to claim 1, wherein the plurality of pulleys are disposed at a substantially central position between a pair of opposed winding drum members, and guide the suspension members from the hanging pulleys to the winding drum members. A pulley is included.

According to the above configuration, the same operation as the first aspect of the invention is achieved. In addition, in the present invention, each of the winding drum members disposed above the four corners of the lifting unit is sequentially interposed via the hanging pulley similarly disposed above the four corners and the intermediate pulley disposed at the substantially center position. As a result, the corresponding hanging member is wound up, and as a result, a sufficient distance from the hanging pulley to the winding drum member can be secured for the hanging member.

Since the winding groove is provided in the winding drum member, the unwinding position of the hanging member from the winding drum member is displaced in the axial direction of the winding drum member with the rotation of the winding drum member. Become. Therefore, when the distance between the suspension pulley and the winding drum member is short, the suspension member may be inclined at a large angle with respect to the winding groove, and the suspension member may fall off the winding groove. In contrast, in the present invention, as described above,
With respect to the suspension member, a sufficient distance from the suspension pulley to the winding drum member can be secured, so that the inclination angle of the suspension member with respect to the winding groove does not increase, and as a result, the hanging member can be securely removed from the winding groove. Can be prevented. 請 Motomeko according to 3 elevating unit lifting device, air conditioner present installed in high places
Predetermined raised position to be accommodated in the body and the air conditioner main body
Can be moved up and down to a predetermined lowering position suspended below
The lifting unit containing the required functional parts
Elevating unit elevating device for elevating and lowering the air conditioner body
At the four corners of the lifting unit
Lowered hanging member and each of the four corners of the lifting unit
At a location substantially above the air conditioner body.
Suspension pulley for suspending the suspension member
Above the four corners of the air conditioner body
Provided in the corresponding suspension via the corresponding suspension pulley
Winding members each of which winds a winding member, and respective winding drum portions
Formed on the outer peripheral surface of the material, and
The spiral winding groove that guides the
And a driving device for rolling and driving , wherein each of the winding drum members winds a corresponding hanging member via a hanging pulley arranged near the winding drum member facing the winding drum member. It is.

According to the above construction, each of the winding drum members winds the corresponding suspension member via the suspension pulley on the side of the opposing winding drum member, which is sufficiently far from the winding drum member.
Therefore, even if the unwinding position of the hanging member from the winding member is displaced along with the rotation of the winding member, the inclination angle of the hanging member with respect to the winding groove does not increase. It is possible to reliably prevent the lowering member from falling off.
請 Motomeko lift unit lifting device according to 4, is installed on the high place
And the predetermined raised position accommodated in the
Predetermined descent suspended below the air conditioner body
It can move up and down freely and includes required functional parts
Raises and lowers the lifting unit with respect to the air conditioner body
In the lifting unit lifting device, the four lifting units
A hanging member that suspends each corner, and a lifting unit
Above the four corners of the air conditioner body
Hang the corresponding hang member provided on the
Approximately above each of the four corners of the car and the lifting unit
To the corresponding suspension pulley
Four windings respectively winding the corresponding hanging members through
A body member, formed on an outer peripheral surface of each winding body member;
A spiral winding groove that guides the winding of the hanging member to the
A driving device for rotating and driving the respective winding drum members, each of a pair of opposing winding drum members winds up a corresponding hanging member via a hanging pulley near the other winding drum member , Each of the other opposing winding drum members winds the corresponding hanging member via a hanging pulley arranged near itself and an intermediate pulley arranged at a substantially central position between the two winding drum members. It is characterized by taking.

According to the above construction, the invention according to claim 1 is provided.
The same operation as the operation according to the first feature is achieved. in addition,
The pair of winding drum members sequentially correspond to a suspended pulley disposed above the four corners of the lifting unit and an intermediate pulley disposed at a substantially central position between the pair of winding drum members. The suspension member will be wound up, and as a result,
Regarding the suspension member, a sufficient distance from the suspension pulley to the winding drum member can be secured.

On the other hand, each of the other pair of winding drum members winds up the corresponding hanging member via the hanging pulley near the side of the winding drum member opposed to each other. And a sufficient distance from the winding drum member can be secured. Therefore, even if the unwinding position of the hanging member from the winding member is displaced along with the rotation of the winding member, the inclination angle of the hanging member with respect to the winding groove does not increase. It is possible to reliably prevent the lowering member from falling off. Lift unit lifting device according to 請 Motomeko 5 is the lift unit lifting device according to claim 4, wherein said four winding drum members, two by two aligned along a direction perpendicular to the opposing direction of the rotation The present invention is characterized in that a set of which the axes are aligned and which are integrally driven to rotate is configured.

According to the above construction, the pair of opposing winding drum members suspends the hanging member via the hanging pulley near the other winding drum member, and the other pair of winding drum members opposing each other. Suspends a suspending member via a suspending pulley near itself. In addition, the two rows of the winding drum members along the direction orthogonal to the facing direction constitute a set that is integrally and rotationally driven for each row. Therefore, a pair of hanging members arranged at the diagonal of the four corners of the lifting unit,
Each of the winding members is wound by the same set. As a result, even in the event that a chain or the like for driving the winding drum member is broken and one set of winding drum members unwinds a pair of diagonal hanging members, the other set of winding drums may be used. A member suspends the diagonal portion of the lifting unit via another pair of suspending members. Therefore, the elevating unit is not greatly inclined. Lift unit lifting device according to 請 Motomeko 6 is the lift unit lifting device according to any one of claims 1 to 5, provided corresponding to each volume body member, parallel to the axis of rotation to the axis of the winding drum member And a roller means for elastically pressing the suspension member against the peripheral surface of the winding drum member at the unwinding position.

According to the above construction, the suspension member is more reliably prevented from being displaced from the winding groove at the unwinding position by being elastically pressed against the peripheral surface of the winding drum member by the roller means. . Since the roller means rolls with respect to the suspension member, it does not hinder winding and unwinding of the suspension member. Lift unit lifting device according to 請 Motomeko 7,
In lifting unit lifting device according to any one of claims 1 to 6, disposed in proximity to each of the circumferential surfaces of the hanging sheave, lowering member suspended from the hanging sheaves fall preventing means for preventing falling off Is further provided.

According to the above construction, the falling-off preventing means can prevent the hanging member from falling off the hanging pulley. As a result, it is possible to prevent the hanging member from falling off from the winding groove. 請 Motomeko according to 8 elevating unit lifting device, installed air conditioning apparatus body heights
The predetermined rising position accommodated in the
It can be raised and lowered to a predetermined lower position that is suspended below.
The lifting unit containing the necessary functional parts
Elevating unit elevating device that moves up and down with respect to the harmony device body
At each of the four corners of the lifting unit
Hanging members and the four corners of the lifting unit
A corresponding part provided on the air conditioner main body substantially above
A suspension pulley that suspends the suspension member and a lifting unit
The air conditioner body is located approximately above each of the four corners.
Provided and corresponding suspension via the corresponding suspension pulley
Four winding drum members each of which winds a member, and each winding drum member
Winding of the suspension member around each winding drum member
The spiral winding groove that guides the
A driving device for driving, each hanging member is made of a wire, the diameter of the wire, the diameter of the winding drum member and the shape and dimensions of the winding groove are set based on JIS G3540, and the wire from the winding drum member is According to the displacement of the unwinding position, the maximum angle at which the wire is inclined with respect to the winding groove in a plan view is set to 6 ° or less.

According to the above configuration, even if the unwinding position of the wire from the winding drum member is displaced, the maximum angle at which the wire is inclined with respect to the winding groove in a plan view is suppressed to 6 ° or less. Therefore, it is possible to reliably prevent the wire from dropping out of the winding groove. An air conditioner according to 請 Motomeko 9,
An air conditioner including the lifting unit lifting device according to any one of claims 1 to 8 , wherein the lifting unit lifting device is substantially included in the outer shape of the lifting unit in plan view. It is.

According to the above configuration, the size of the air conditioner body can be reduced.

[0020]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG. 2 is a schematic perspective view of an air purifier as an air conditioner including a lifting unit lifting device according to an embodiment of the present invention. With reference to the figure, this air purifier is installed near the ceiling of a factory or the like having a high ceiling and collects and removes oil mist and the like. , This air purifier body 1
0, and the air cleaner body 10 through the opening 10a.
A circulating fan 20 as a circulating blower that circulates through the internal air passage PH, and is detachably attached to the air purifier main body 10 through an opening 11 on the lower surface of the air purifier main body 10, and is used for maintenance of the filter F1 and the dust collection element E. An elevating unit CU including parts and this elevating unit CU
A lifting / lowering device 30 that is hung up and down via wires 31a to 31d as book hanging members, and a remote controller 41
And a control device 40 that controls the operation of the lifting device 30 by operating the ascending switch PB1 and the descending switch PB2.

The elevating unit CU is located at a raised position accommodated in the main body 10 of the air purifier.
Is lowered to a predetermined lowering position that is hung below. The elevating unit CU includes a frame 50 and the component to be maintained held in the frame 50.
With respect to a hook (not shown) provided on the upper surface of the frame body 50 and at the four corners at the upper part of the lifting unit CU,
The lower ends of the wires 31a to 31d are hooked.

Referring to FIG. 1 and FIG. 3 which is a partial sectional plan view of the lifting / lowering device, the lifting / lowering device 30 includes wires 31a to 331d as hanging members which respectively suspend four corners of the lifting / lowering unit CU. The suspension pulleys 61a to 61d provided on the air-conditioning apparatus main body 10 substantially above the four corners of the lifting unit CU and suspending the corresponding wires 31a to 331d, and substantially above the four corners of the lifting unit CU, respectively. Air conditioner body 1
0, and four winding members 33a to 33d respectively winding the corresponding wires 31a to 31d via the corresponding suspension pulleys 61a to 61d, and the winding members 33a to 33d.
And a drive mechanism 34 for rotatingly driving the drive shaft 33d.

The suspension pulleys 61a to 61d, the winding drum members 33a to 33d, and the drive mechanism 34 are accommodated in a casing 39 mounted on the upper surface of the air conditioner main body 10. In plan view, the outer shape of the casing 39 of the elevating device 30 is configured to substantially conform to the outer shape of the elevating unit CU. The four winding drum members 33a, 3
Out of 3b, 33c, and 33d, two members, the winding member 33a and the winding member 33b, form one set, and two members, the winding member 33c and the winding member 33d, form one set. One of the two winding drum members 33a and 33b is rotatably supported by the casing 39 in a state where the two winding drum members 33a and 33b are coaxially and integrally rotatably connected via a connecting shaft 35. Another set of winding drum members 3
The same applies to 3c and 33d.

Referring to FIG. 1, wire 31a and wire 3
Regarding 1c, it is engaged with the winding drum member 33a and the winding drum member 33c located immediately above, respectively. On the other hand, with respect to the wire 31b and the wire 31d, they are engaged with the winding drum member 33d and the winding drum member 33b located immediately above the other wire in a state of intersecting each other. In this way, the pair of wires 31a, 31b, which suspend the diagonal part of the lifting unit CU, are wound by the winding drum members 33a, 33b integrally rotated in the same set, respectively.
Further, the winding drum members 33c and 33d integrally rotated in the same set.
Accordingly, a pair of wires 31c and 31d, which similarly hang a diagonal portion of the lifting unit CU, are respectively wound up.

The wire 3 unwound from one of the pair of opposing winding drum members 33a, 33c.
1a is one corner of the elevating unit CU via the intermediate pulley 61e and the hanging pulley 61a in sequence (the corner of the elevating unit located below the one winding drum member 33a).
Is suspended. The wire 31c unwound from the winding member 33c facing the other winding member 33a is
One corner (the other winding drum member 33c) of the lifting unit CU is sequentially passed through the intermediate pulley 61f and the hanging pulley 61c.
(Which is the corner of the lifting unit located below). The intermediate pulleys 61e and 61f are disposed substantially at the center between the pair of opposed winding drum members 33a and 33c and are coaxial with each other. Intermediate pulley 61e,
A shaft 62 for rotatably supporting the shaft 61f is fixed to an upper surface of the air conditioner main body 10 and includes support side plates 71, 7 described later.
2 (see FIG. 6).

On the other hand, the other pair of winding drum members 33b, 3
3d, the wire 31b unwound from one of the winding drum members 33b passes through a hanging pulley 61d disposed near the other winding drum member 33d, at one corner of the lifting unit CU (the other winding line). (Which is a corner of the lifting unit CU located below the trunk member 33d). The wire 31d unwound from the other winding member 33d
Is a corner of the lifting unit CU (a corner of the lifting unit CU located below the one winding member 33b) via a suspension pulley 61b disposed near the one winding member 33b. ) Is suspended. Thus, the other pair of winding drum members 33b, 33d facing each other is connected to the lifting unit C positioned below the other winding drum members 33d, 33b.
The corner of U will be hung. Therefore, as described above, the winding drum members (33a, 33a,
33b) and (33c, 33d), a pair of wires (31) suspending the diagonal portions of the lifting unit CU.
a, 31d) and (31c, 33b) are respectively wound.

The suspension pulley 61b for guiding the wire 31b and the suspension pulley 61d for guiding the wire 31d
Are slightly displaced from each other so as to avoid contact between the wires 31b and 31d. in this case,
Only one of the suspension pulleys 61b (or 61d) may be shifted in the direction of the rotation axis of the suspension pulley 61b (or 61d).

Referring to FIG. 3, in a plan view, each of the winding drum members 33a to 33d and each of the hanging members 61a to 61d.
Are arranged at the four corners of the elevating unit CU, and the winding drum members 33a to 33d and the suspending members 61a to 61d do not protrude from the outer shape of the elevating unit CU, and the distance between each other is the longest. It has been like that. Then, the hanging pulleys 61a to 61d and the winding drum members 33a to 33
d, the elevating device 30 including the drive mechanism 34 and the like does not protrude from the outer shape of the elevating unit CU in plan view.

On the outer peripheral surface 36 of the winding drum members 33a to 33d, a spiral winding groove 38 (see FIG. 5; only the winding drum member 33a is shown in FIG. 5) for guiding the winding of the wires 31a to 31d is provided. Formed, thereby forming wires 31a to 31d
It is wound up without causing overlap. The winding grooves formed on the winding drum members 33a and 33b in the same set are formed in directions opposite to each other. The same applies to the winding grooves of the other winding drum members 33c and 33d.

The diameter of the wires 31a to 31d, the winding drum member 33
a to 33d, and the shape and dimensions of the winding groove 38 are J
The wire 31a is set based on ISG 3540, and in accordance with the displacement of the unwinding position of the wires 31a to 31d from the winding drum members 33a to 33d, the wire 31a in plan view.
The maximum angle θ (see FIG. 4, which is a partially enlarged view of FIG. 3) at which 〜31d is inclined with respect to the winding groove 38 is set to 6 ° or less.

Referring to FIG. 3, the driving mechanism 34
A pair of small sprockets 34d, 34e driven to rotate by a motor 34a via a speed reducer (not shown), a gear mechanism 34b, and a shaft 34c.
And one small sprocket 34d and the endless chain 3
4f, one of the winding drum members 33b, 3
Large sprocket 34g rotating integrally with 3d connecting shaft 35
And the other small sprocket 34e and the endless chain 3
4h, and a sprocket 34i connected to the sprocket 34i via the other 4h, and the other set of winding drum members 33a, 33
and a gear mechanism 34j for connecting the connection shaft 35 of FIG. The drive mechanism 34 moves the drive path through the winding drum member 33a.
That is, the system is divided into two systems corresponding to each set of ~ 33d.

In the driving mechanism 34, the winding drum members 33a to 33
d so that each set of d can be driven at the same speed.
The final reduction ratio from the set to the connecting shaft 35 is set equal between the sets. Next, a suspended portion of the lifting device 30 will be described in detail with reference to FIGS. Both ends of the shaft 62 that rotatably supports the intermediate pulleys 61e and 61f are connected to the air purifier main body 10.
Are respectively supported by a pair of support side plates 71 and 72 fixed to the upper surface of the. The intermediate pulley 61e is close to the support side plate 71, and the intermediate pulley 61f is
Close to. At the upper end of the support side plate 71, a regulating plate 71a as a drop-preventing means, which is close to the peripheral surface of the intermediate pulley 61e, is fixed. This regulating plate 71a
The wire 31a wound around the intermediate pulley 61e is prevented from falling off from the intermediate pulley 61e. Similarly, the upper end of the supporting side plate 72 has a section L
The U-shaped regulating plate 72a is fixed, and the intermediate pulley 6
The wire 31c is prevented from dropping from 1f.

In FIG. 6, the wire 31c drawn out from the winding drum member 33c is wound around the intermediate pulley 61f, makes a U-turn, passes above the winding drum member 33c, and is wound around the hanging pulley 61c. , Hanging down.
The shaft 61x of the suspension pulley 61c is rotatably supported by a pair of parallel support side plates 73 and 74 fixed to the air cleaner main body 10. These support side plates 7
The lower ends of the members 3 and 74 are integrally connected by a plate member, and the whole has a U-shape.

The suspension pulley 61c is connected to the outer support side plate 73.
It is arranged close to. Restriction plates 73a and 73b are fixed to the upper end and side ends of the support side plate 73, respectively, serving as drop-prevention means for preventing the wire 31c from dropping close to the peripheral surface of the suspension pulley 61c. Both ends of the shaft 61x of the hanging pulley 61c are connected to the two supporting side plates 73 and 74.
Through each.

Further, the wire 31c is pressed against the peripheral surface of the winding body member 33c at the position where the wire 31c is unwound from the winding body member 33c on the supporting side plates 73 and 74, so that the wire 31c falls out of the winding groove 38. A pressing mechanism 80 for preventing the pressure is provided. The pressing mechanism 80 includes a pair of arms 81 and 82 whose base ends are rotatably supported by both ends of the shaft 61x, respectively.
A shaft 83 connecting the ends of both arms, which is parallel to the axis of the winding drum member 33c, and a cylindrical resin roller 84 as roller means rotatably fitted around the shaft 83
A tension coil spring 85 interposed between a predetermined portion of the arm 82 and a predetermined portion of the support side plate 74 to urge the arm 82 to rotate, thereby pressing the resin roller 84 against the peripheral surface of the winding drum member 33c. It has.

The resin roller 84 extends in parallel with the axial direction of the winding drum member 33c and has a length substantially equal to the axial length of the winding drum member 33c, so that the winding of the wire 31b from the winding drum member 33c is performed. Even if the delivery position is displaced in the axial direction of the winding drum member 33c, the wire 31b can be pressed against the peripheral surface of the winding drum member 33c. We can respond to this. Further, since the resin roller 84 rotates, the resin roller 84 does not become a resistance to winding and unwinding of the wire 31c.

The above pressing mechanism 80 is also applied to the other winding drum members 33a, 33b, 33d.
Further, a tension detecting mechanism 90 for detecting the tension of the wire 31c is attached to the support side plate 74. The tension detecting mechanism 90 includes an arm 91 having a base end rotatably supported by an end of the shaft 61x penetrating the support side plate 74.
And a shaft 92 attached to the tip of the arm 91.
And a metal tubular member 93 which is rotatably fitted around the shaft 92 and rests on the wire 31c between the hanging member 61c and the intermediate pulley 61f, and is turned on / off according to the rotation of the base end of the arm 91. And a limit switch 94 to be operated.

The weight of the shaft 92 and the cylindrical member 93 is equal to that of the wire 3
1c. At the position of the arm 91 in a state where tension is applied to the wire 31c,
The limit switch 94 is turned off, and as shown in FIG. 6, the limit switch 94 is turned on at the position of the arm 91 when the wire 31c is slackened. When the limit switch 94 is turned on, the slack of the wire 31c is detected.

The tension detecting mechanism 90 is provided with the winding drum member 33 shown in FIG.
It is applied to the wire 31d in a portion between the hanging pulley 61b near the winding drum member 33b and the winding drum member 33d, which is disposed diagonally to c, and near the hanging pulley 61b. Thus, the reason why the tension detecting mechanism 90 is applied to the wires 31c and 31d is that these wires 3c
This is because 1c and 31d are wound by winding drum members 33c and 33b that are not the same set (other systems), and these wires 31c and 31d hang on the diagonal of the lifting unit CU. Because. Normal,
When the elevation unit CU inclines, a height difference always occurs at the diagonal. Therefore, if the slack of the wires 31c and 31d hanging at the diagonal of the four wires is detected, the inclination of the elevation unit CU is reliably increased. Can be detected.

Referring to FIG. 6, the detection signals from the pair of limit switches 94 are respectively supplied to a drive control unit DC for controlling the drive of motor 34a, and drive control unit DC receiving the ON signal. When a turn-on signal is received from at least one limit switch 94, a motor drive circuit MD for driving the motor 34a
C outputs a stop signal to all the wires 31a to 31d.
Is stopped. Therefore, as soon as the elevating unit CU inclines slightly, the feeding of the wires 31a to 31d is stopped, and the inclining of the elevating unit CU is prevented from being promoted.

According to this embodiment, the following operation and effect can be obtained. That is, the wires 31a to 3d by the respective winding drum members 33a to 33d.
The winding and unwinding of 1d is performed by hanging pulleys 61a to 61d.
Will be guided through. Therefore, even if the wires 31a to 31d between the suspension pulleys 61a to 61d and the elevating unit CU swing for some reason, the suspension pulleys 61a to 61d and the winding drum members 33a to 33d.
The portions of the wires 31a to 31d between the wires 33d and 33d are hard to swing. As a result, the wires 31a to 31d do not fall out of the winding groove 38, and the winding diameter does not change between the winding drum members 33a to 33d. Therefore, the winding amounts of the wires 31a to 31 at the respective winding drum members 33a to 33d become uniform, so that the lifting unit CU can be moved up and down without tilting.

As for the wires 31a and 31c, a plurality of pulleys (61) are wound by the winding drum members 33a and 33c.
a, 61e) (61c, 61f), so that the wires 31a, 31c near the winding drum members 33a, 33c are compared with the case of winding through a single pulley.
As a result, the swing of the wire 31 can be reliably prevented.
a, 31c can be reliably prevented from falling off from the winding groove 38. Therefore, the inclination of the lifting unit CU caused by the wires 31a, 31c falling out of the winding groove 38 can be reliably prevented.

Further, the winding drum members 33a, 33c
Are arranged above the corners of the lifting unit CU, and each of the bobbin members 33a, 33c is provided with a hanging pulley 61a, 61c and a pair of bobbin members 33, which are disposed in the vicinity thereof.
a, an intermediate pulley 61 disposed at a substantially central position between 33c.
e, 61f sequentially correspond to the corresponding wires 31a, 31
c, so that the wires 31a, 3
Regarding 1c, a sufficient distance from the suspension pulleys 61a, 61c to the winding drum members 33a, 33c can be secured. On the other hand, the winding drum members 33b and 33d facing each other are
The corresponding wires 31b, 31d are wound up via suspension pulleys 61d, 61b near the opposing winding drum members 33d, 33b, respectively. Therefore, the winding drum member 3
A sufficient distance can be ensured between 3b, 33d and the suspension pulleys 61d, 61b. Therefore, each winding drum member 33a-
The unwinding position of the wires 31a to 31d from the 33d is
With the rotation of the winding drum members 33a to 33d, the winding drum member 33a
When the wires 31a to 33d are displaced in the axial direction,
The inclination angle of the 31d with respect to the winding groove 38 does not increase,
As a result, it is possible to reliably prevent the wires 31a to 31d from dropping from the winding groove 38. Therefore, the wires 31a-3
It is possible to more reliably prevent the inclination of the elevating unit CU due to dropping from the winding groove 38 of 1d.

In addition, each of the wires 31 a to 31 d
At the unwinding position from the winding drum members 33a to 33d,
The resin roller 84 of the pressing mechanism 80 elastically presses the peripheral surfaces of the winding drum members 33a to 33d, whereby the deviation from the winding groove 38 at the unwinding position is more reliably prevented. As a result, the wires 31a to 31d
Unit CU caused by falling off from winding groove 38
Can be more reliably prevented.

Further, the restriction plates 71 a, 72 a, 73 a, 73 b serving as drop-off preventing means can prevent the wires 31 a-31 d from dropping from the suspension pulleys 61 a-61 d. As a result, the wires 31a to 31d can be prevented from falling off from the winding groove 38, and the inclination of the lifting unit CU caused by the wires 31a to 31d falling from the winding groove 38 can be more reliably prevented. .

In addition, even if the unwinding positions of the wires 31 a to 31 d of the winding drum members 33 a to 33 d are displaced, the wires 31 a to 31 d
, The maximum angle of inclination with respect to is controlled to 6 ° or less, so that the wires 31a to 31d can be more reliably prevented from falling off from the winding groove 38. Furthermore, since the elevating device 30 is substantially included in the outer shape of the elevating unit CU in plan view, the size of the air purifier main body 10 can be reduced.

In addition, the same set of winding drum members (33a, 33b) (33c, 33d) that are integrally rotated and driven.
Respectively wind up a pair of wires (31a, 31b) (31c, 31d) arranged diagonally at the four corners of the lifting unit CU. As a result, the winding drum members 33a to 33
The chain or the like for driving d is cut, and a pair of wires (31a, 31b) or (31c, 3) in which one set of the winding drum members (33a, 33b) or (33c, 33d) is diagonal.
Even when 1d) is unwound, another set of the winding drum members (33c, 33d) or (33a, 33b) is moved up and down via another pair of wires (31c, 31d) or (31a, 31b). The diagonal part of the CU is suspended. Therefore, the lifting unit CU can be maintained in a substantially horizontal state, whereby oil spilling from the drain pan and the like due to the inclination of the lifting unit CU can be prevented.

FIG. 7 shows another embodiment of the present invention. This embodiment differs from the embodiment of FIG.
1e and 61f are abolished, and the wire 31a to be wound by the winding drum member 33a is wound via a hanging pulley 61c arranged near the winding drum member 33c facing the winding drum member 33a, and the winding drum member 33c is wound. The winding body member 33 facing the winding body member 33c
The point is that the reel is wound up via a suspension pulley 61a arranged in the vicinity of a. Other configurations are the same as those in the embodiment of FIG.

In this embodiment, the same operation and effect as those of the embodiment of FIG.
As a result, a sufficient distance can be ensured between each of the winding drum members 33a to 33d and the suspension pulleys 61a to 61d. In addition, since the intermediate pulley can be eliminated, the structure is simplified and the manufacturing cost can be reduced.

FIG. 8 shows still another embodiment of the present invention. Referring to the figure, the present embodiment is different from the embodiment of FIG. 1 in that a winding drum member 33b winds a wire 31b through an intermediate pulley 61g and a hanging pulley 61b near itself, and the winding drum The member 33d winds the wire 31d through the intermediate pulley 61h and the hanging pulley 61h near itself.

In the present embodiment, the same operation and effect as those of the embodiment of FIG.
As a result, a sufficient distance can be ensured between each of the winding drum members 33a to 33d and the suspension pulleys 61a to 61d. In addition, wire 3
1b and 31d are also wound up through a plurality of pulleys, and the effect of preventing the wires 31b and 31d from being wound from the winding groove 38 is high.

The present invention is not limited to the above embodiments. For example, a plurality of intermediate pulleys may be provided, and the wire may be wound through three or more pulleys. In this case, since the swinging of the wire is regulated by many pulleys, the effect of preventing the wire from falling out of the winding groove can be further enhanced. Also, various design changes can be made, such as applying the present invention to other air conditioners having an elevating unit other than the air purifier.

[0053]

According to the first aspect of the present invention , the winding and unwinding of the suspension member by each winding drum member are guided through the suspension pulley. Therefore, even if the portion of the suspension member between the suspension pulley and the lifting / lowering unit swings for some reason, the portion of the suspension member between the suspension pulley and the winding drum member swings. It is hard to move. As a result, the hanging groove does not fall out of the hanging member, and the winding diameter does not change between the winding drum members. Therefore, the winding amount of the suspension member at each winding drum member becomes uniform, so that the lifting unit can be raised and lowered without tilting.

[0054] According to a second aspect of the invention according to claim 1, each winding drum member, so taking up the lower member hanging over a plurality of pulleys, and if the wound through the single pulley comparison As a result, it is possible to more reliably prevent the suspension member from swinging in the vicinity of the winding drum member. As a result, it is possible to more reliably prevent the suspension member from dropping out of the winding groove. Therefore, it is possible to more reliably prevent the elevating unit from being inclined due to the suspension member falling out of the winding groove.

According to the second aspect of the invention, in addition to having the same effect as the first aspect of the invention, each of the winding drum members disposed above the four corners of the lifting / lowering unit also has the four corners. Corresponding hanging members will be wound sequentially through the hanging pulleys arranged above and the intermediate pulleys arranged at the substantially central position, and as a result, with respect to the hanging members, the bobbin from the hanging pulleys A sufficient distance to the member can be secured. Therefore, even when the unwinding position of the hanging member from the winding drum member is displaced in the axial direction of the winding drum member with the rotation of the winding drum member, the inclination angle of the hanging member with respect to the winding groove does not increase. As a result, the hanging member can be reliably prevented from falling off from the winding groove. Therefore,
It is possible to more reliably prevent the inclination of the elevating unit due to the suspension member falling out of the winding groove.

According to the third aspect of the invention, the same effect as the first feature of the first aspect of the invention is exerted. in addition,
Each winding drum member, a sufficient distance from the winding drum member,
The corresponding hanging member is wound up via the hanging pulley on the side of the winding drum member facing the winding member. Therefore, even if the unwinding position of the hanging member from the winding member is displaced along with the rotation of the winding member, the inclination angle of the hanging member with respect to the winding groove does not increase. The hanging member can be securely prevented from falling off. Therefore, it is possible to more reliably prevent the elevating unit from being inclined due to the suspension member falling out of the winding groove.

According to the fourth aspect of the invention, in addition to having the same effect as the first feature of the first aspect of the invention, the pair of winding members are provided above the four corners of the lifting unit. The suspended pulleys arranged, and the intermediate pulley disposed at a substantially central position between the pair of winding drum members, the corresponding suspending members will be sequentially wound up, and as a result,
As for the suspension member, a sufficient distance can be secured from the suspension pulley to the corresponding winding drum member. On the other hand, each of the other pair of winding drum members winds up the corresponding hanging member via the hanging pulley near the winding drum member side opposed to each other. A sufficient distance to the member can be secured. Therefore, even if the unwinding position of the hanging member from each of the winding drum members is displaced with the rotation of each of the winding drum members, the inclination angle of each of the hanging members with respect to the winding groove does not increase. In addition, the hanging member can be reliably prevented from falling off. Therefore, it is possible to more reliably prevent the elevating unit from being inclined due to the suspension member falling out of the winding groove.

According to the fifth aspect of the invention, the same effects as those of the fourth aspect of the invention can be obtained. In addition, the same set of winding drum members that are integrally rotated and driven respectively wind up a pair of hanging members disposed diagonally at four corners of the lifting unit. As a result, even in the event that a chain or the like for driving the winding drum member is broken and one set of winding drum members unwinds a pair of diagonal hanging members, the other set of winding drums may be used. A member suspends the diagonal portion of the lifting unit via another pair of suspending members. Therefore, the elevating unit can be maintained in a substantially horizontal state, whereby oil spilling from the drain pan and the like due to the inclination of the elevating unit can be prevented.

[0059] According to the invention of claim 6, in addition to the same effects as the invention according to claim 1 which <br/> stone 5, the hanging member is wound cylinder by the roller means By being elastically pressed against the peripheral surface of the member, deviation from the winding groove at the unwinding position is more reliably prevented. As a result, it is possible to more reliably prevent the elevating unit from being tilted due to the suspension member falling out of the winding groove.
In addition, since the roller means rolls with respect to the hanging member, it does not hinder winding and unwinding of the hanging member.

[0060] According to the invention of claim 7, in addition to the same effects as the invention according to claim 1 which <br/> stone 6, the falling prevention means, supported from a hanging pulley The falling member can be prevented from falling off. As a result, it is possible to prevent the hanging member from falling off the winding groove, and it is possible to more reliably prevent the inclination of the elevating unit due to the hanging member falling out of the winding groove.

[0061] According to the invention of claim 8, in addition to the same effects as the first feature of the invention according <br/> to claim 1, the unwinding position of the wire from the winding drum member Even if it is displaced, the maximum angle at which the wire is inclined with respect to the winding groove in plan view is suppressed to 6 ° or less.
It is possible to more reliably prevent the wire from dropping out of the winding groove.

According to the ninth aspect of the present invention, since the elevating unit elevating device is substantially included in the outer shape of the elevating unit in plan view, the size of the air conditioner body can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a schematic configuration of a main part of a lifting unit lifting device according to an embodiment of the present invention.

FIG. 2 is a schematic perspective view of an air conditioner including a lifting unit lifting device.

FIG. 3 is a partial cross-sectional plan view of the lifting device.

FIG. 4 is a partially enlarged view of the lifting device of FIG. 3;

FIG. 5 is a side view of the winding drum member.

FIG. 6 is a schematic perspective view of a main part of the elevating device of FIG. 3 as viewed along the Y direction.

FIG. 7 is a perspective view showing a schematic configuration of a main part of a lifting unit lifting device according to another embodiment of the present invention.

FIG. 8 is a perspective view showing a schematic configuration of a main part of an elevating unit elevating device according to still another embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Air cleaner main body CU lifting / lowering unit 30 lifting / lowering apparatus 31a-31d wire (suspension member) 33a-33d winding drum member 34 drive mechanism 38 winding groove 61a-61d suspension pulley 61e-61f intermediate pulley 71a, 72a, 73a, 73b Limiting plate (drop-off preventing means) 80 Pressing mechanism 84 Resin roller (roller means) 90 Tension detecting mechanism 94 Limit switch

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Tadamitsu Imai 1-1, Nishi-Itsuya, Settsu-shi, Osaka Daikin Industries, Ltd. Yodogawa Works (56) References Open-ended 1-88722 (JP, U) Opened Hei 2-67154 (JP, U) Japanese Utility Model Showa 52-67154 (JP, U) Japanese Utility Model Utility Model Showa 62-186890 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) B66D 1 / 00-5/34

Claims (9)

(57) [Claims] An air conditioner main body installed at a high position; and a predetermined lowering position suspended below the air conditioner main body, and movable up and down. Elevating unit (CU) including required functional parts (F1, E)
A lifting member (31a to 31d) that suspends the four corners of the lifting unit (CU), respectively, and a lifting unit (CU) of the lifting unit (CU). A corresponding suspension member provided on the air conditioner body (10) substantially above each of the four corners
(31a-31d) and suspension pulleys (61a-61d), and corresponding suspension pulleys provided on the air conditioner body (10) substantially above each of the four corners of the lifting unit (CU).
(61a-61d) Four winding members (33a-33d) for respectively winding the corresponding hanging members (31a-31d), and formed on the outer peripheral surface (36) of each winding member (33a-33d) A spiral winding groove (38) for guiding the winding of the suspension members (31a to 31d) onto the respective winding drum members (33a to 33d); and a drive for rotating and driving the respective winding drum members (33a to 33d). Equipment (34)
Each winding drum member (33a-33d) is provided with the above-mentioned hanging pulley (61a-61d).
Corresponding pulling via a plurality of pulleys (61a-61h) respectively
An elevating unit elevating device, wherein the lowering members (31a to 31d) are wound up . 2. The lift unit according to claim 1, wherein the plurality of pulleys are provided with a pair of opposing winding drum members (33a-33).
d) is arranged at a substantially central position between each other, and a hanging pulley (61a to 61
From d), suspending members (31a to 31d) are proposed to the winding drum members (33a to 33d).
An elevating unit elevating device comprising an intermediate pulley (61e to 61h) therein . 3. An air conditioner main body (10) installed at a high place is capable of moving up and down between a predetermined rising position accommodated in the air conditioner main body and a predetermined lowering position suspended below the air conditioner main body. Elevating unit (CU) including required functional parts (F1, E)
A lifting member (31a to 31d) that suspends the four corners of the lifting unit (CU), respectively, and a lifting unit (CU) of the lifting unit (CU). A corresponding suspension member provided on the air conditioner body (10) substantially above each of the four corners
(31a-31d) and suspension pulleys (61a-61d), and corresponding suspension pulleys provided on the air conditioner body (10) substantially above each of the four corners of the lifting unit (CU).
(61a-61d) Four winding members (33a-33d) for respectively winding the corresponding hanging members (31a-31d), and formed on the outer peripheral surface (36) of each winding member (33a-33d) A spiral winding groove (38) for guiding the winding of the suspension members (31a to 31d) onto the respective winding drum members (33a to 33d); and a drive for rotating and driving the respective winding drum members (33a to 33d). Equipment (34)
Each of the winding drum members (33a, 33b, 33c, 33d) includes the winding drum member (33a, 3
3b, 33c, 33d) of the winding drum member (33c, 33d, 33a, 33b)
Via suspension pulleys (61c, 61d, 61a, 61b)
And a corresponding lifting member (31a, 31b, 31c, 31d) . 4. An air conditioner main body (10) installed at a high position is vertically movable between a predetermined rising position accommodated in an air conditioner main body (10) and a predetermined lowering position suspended below the air conditioner main body. Elevating unit (CU) including required functional parts (F1, E)
A lifting member (31a to 31d) that suspends the four corners of the lifting unit (CU), respectively, and a lifting unit (CU) of the lifting unit (CU). A corresponding suspension member provided on the air conditioner body (10) substantially above each of the four corners
(31a-31d) and suspension pulleys (61a-61d), and corresponding suspension pulleys provided on the air conditioner body (10) substantially above each of the four corners of the lifting unit (CU).
(61a-61d) Four winding members (33a-33d) for respectively winding the corresponding hanging members (31a-31d), and formed on the outer peripheral surface (36) of each winding member (33a-33d) A spiral winding groove (38) for guiding the winding of the suspension members (31a to 31d) onto the respective winding drum members (33a to 33d); and a drive for rotating and driving the respective winding drum members (33a to 33d). Equipment (34)
With the door, each of the pair of winding drum member facing (33b, 33d), each other
The suspension pulley (61) near the other bobbin members (33d, 33b)
d, 61b) and the corresponding suspending members (31b, 31d)
Each of the opposing winding drum members (33a, 33c)
Pulleys (61a, 61c) and both winding cylinders
Intermediately located at approximately the center between members (33a, 33c)
Corresponding suspension members (31a, 31c) via pulleys (61e, 61f)
Lift unit lifting apparatus characterized by winding the. 5. The lifting device according to claim 4, wherein the four winding drum members (33a, 33b, 33c, 33d) are arranged in opposite directions.
The two are arranged along the direction perpendicular to the direction
A set of lines (33a, 33b) that are aligned and driven to rotate together
(33c, 33d), each of which comprises a lifting unit lifting device. 6. A lifting unit according to claim 1, wherein said winding unit is provided corresponding to each of said winding drum members.
A rotating shaft having a rotation axis parallel to the axis of the trunk member (33a to 33d);
Unwinding of the suspension members (31a to 31d) from the members (33a to 33d)
At the position, the suspension members (31a to 31d) are
Roller means (84) for elastically pressing the peripheral surface of d) is further provided.
Lift unit lifting device, characterized in that was e. 7. A lifting unit lifting device according to claim 1, wherein said lifting pulleys (61a to 61d) are arranged close to respective peripheral surfaces thereof.
The suspension members (31a-31) are suspended from the suspension pulleys (61a-61d).
d) drop-out prevention means (71a, 72a, 73
a, 73b) further comprising: a lifting unit lifting device. 8. An air conditioner main body (10) installed at a high place is capable of moving up and down between a predetermined rising position accommodated in the air conditioner main body and a predetermined lowering position suspended below the air conditioner main body. Elevating unit (CU) including required functional parts (F1, E)
A lifting member (31a to 31d) that suspends the four corners of the lifting unit (CU), respectively, and a lifting unit (CU) of the lifting unit (CU). A corresponding suspension member provided on the air conditioner body (10) substantially above each of the four corners
(31a-31d) and suspension pulleys (61a-61d), and corresponding suspension pulleys provided on the air conditioner body (10) substantially above each of the four corners of the lifting unit (CU).
(61a-61d) Four winding members (33a-33d) for respectively winding the corresponding hanging members (31a-31d), and formed on the outer peripheral surface (36) of each winding member (33a-33d) A spiral winding groove (38) for guiding the winding of the suspension members (31a to 31d) onto the respective winding drum members (33a to 33d); and a drive for rotating and driving the respective winding drum members (33a to 33d). Equipment (34)
With the door, the hanging member is a wire (31 a to 31 d), the diameter of the wire (31 a to 31 d), the diameter of the winding drum member (33 a to 33 d) and
The shape and dimensions of the winding groove (38) are based on JIS G3540.
There are set by unwinding the wire (31 a to 31 d) from the winding drum member (33 a to 33 d)
Wires (31a to 31d) in plan view according to the displacement of the position
The maximum angle at which the taper is inclined with respect to the winding groove
An elevating unit elevating device, which is set . 9. An air conditioner including the lifting unit lifting device according to any one of claims 1 to 8, wherein the lifting unit lifting device (30) is provided in a plan view.
An air conditioner characterized by being substantially included in the outer shape of a lifting unit (CU) .