JP2010025416A - Wire take-up/supply device, and movable panel lifting and lowering device of air conditioning indoor unit comprising the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wire take-up/supply device for preventing separation of a wire from a winding member, and entangling of the winding member and the wire, and to provide a movable panel lifting and lowering device of an air-conditioning indoor unit comprising the wire take-up/supply device. <P>SOLUTION: The lifting and lowering device 7 rotates a bobbin 73 by a lifting and lowering motor 76, and the wire 71 is taken up on an outer peripheral face 73a of the bobbin 73. The wire 71 taken up on the outer peripheral face 73a of the bobbin 73 is covered by a resin energizing member 70 molded into the circular arc shape by elastic force, and the wire 71 is pressed to an outer peripheral face 73a side. When the bobbin 73 takes up the wire 71, the wire 71 taken up into the mountain shape, is pressed by the energizing member 70. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a wire winding / feeding device for winding a wire around a winding member, and a movable panel lifting / lowering device for an air conditioning indoor unit including the wire winding / feeding device.

  2. Description of the Related Art Conventionally, an air conditioning indoor unit that closes an opening of a decorative panel with a movable panel that can be moved up and down is widely known as a ceiling-mounted air conditioning indoor unit (for example, see Patent Document 1). In the air conditioner indoor unit, the movable panel is suspended by a plurality of wires, and the movable panel elevating device lowers the movable panel by drawing out the wire, and winds the wire to raise the movable panel.

However, the movable panel lifting / lowering device used in the air conditioner indoor unit is configured to wind the wire around the bobbin-shaped winding member, and the wire overlaps on the wire, so that the wire is detached from the winding member. There is a high possibility of being intertwined.
JP-A-10-196999

  An object of the present invention is to provide a wire take-up / feeding device that prevents the wire from coming off from the winding member, or the winding member and the wire are entangled, and an air-conditioning room equipped with the wire take-up / feeding device. It is in providing the movable panel raising / lowering apparatus of a machine.

  The wire winding / unwinding device according to the first invention is a wire winding / unwinding device for winding or unwinding a wire connected to an object, and includes a motor, a winding member, and an urging member. It has. The winding member is rotationally driven by a motor, and a wire is wound around the outer peripheral surface. The biasing member contacts the wound wire from the outer peripheral side of the winding member and presses the wire against the outer peripheral surface of the winding member.

  In this wire winding / feeding device, when the wire is wound, the urging member suppresses the wire from being wound in a mountain shape, so that the wire is prevented from coming off beyond the winding member. Also, when the wire is unwound, even if there is no load acting on the wire and tension is lost, the wire wound around the winding member is prevented from loosening and unraveling, so that the winding member and the wire become entangled Is prevented.

  The wire winding / feeding device according to the second invention is the wire winding / feeding device according to the first invention, wherein the biasing member follows the height change from the outer peripheral surface of the wire by elastic deformation. .

  In this wire winding / feeding device, even when the height of the wound wire changes, the gap between the wire and the biasing member is instantly filled, so that the wire is prevented from loosening and unwinding, and the winding member It is possible to prevent the wire from coming off, or the winding member and the wire from being tangled.

  The wire winding / feeding device according to the third invention is the wire winding / feeding device according to the first invention, and the urging member is made of resin. In this wire winding / feeding device, the friction between the wire and the urging member is small, and damage to the wire is suppressed. Further, frictional noise between the wire and the biasing member is also suppressed.

  The wire winding / unwinding device according to a fourth aspect of the present invention is the wire winding / unwinding device according to the first aspect, wherein the urging member is made of metal. In this wire winding / unwinding device, the durability of the urging member is improved.

  A wire winding / unwinding device according to a fifth aspect of the present invention is the wire winding / unwinding device according to the first aspect of the present invention, wherein the urging member has a circular cross section. This wire winding / feeding device is easy to follow the winding shape of the wire and saves space.

  A wire winding / unwinding device according to a sixth aspect of the present invention is the wire winding / unwinding device according to the fifth aspect of the present invention, wherein the urging member has an arc having a central angle of 180 ° or more with respect to the center of the arc shape Has been. In this wire winding / feeding device, the urging member alone can be attached to the winding member and the wire, and it is prevented from coming off and falling.

  A wire winding / feeding device according to a seventh aspect of the present invention is the wire winding / feeding device according to the fifth aspect of the present invention, wherein the biasing member restricts the deflection of the winding or feeding of the wire in the central axis direction. A regulating member is provided. In this wire winding / feeding device, the urging member cannot swing in the direction of the rotation axis when the winding member rotates, so that the wire is stably wound around the winding member.

  The movable panel lifting / lowering device for an air conditioning indoor unit according to the eighth aspect of the invention is an air conditioning indoor unit that causes a movable panel suspended through a wire in the vicinity of an air suction port to lift and / or open / close the air suction port by operation of the wire. The movable panel lifting / lowering device includes a wire winding / feeding device according to any one of the first to seventh inventions for operating the wire.

  In this movable panel lifting and lowering device, when the movable panel is lowered, even if there is no load acting on the wire and the tension is lost, the wire wound around the winding member is prevented from being loosened and unwound. And the wire are prevented from getting tangled. Further, when the movable panel is raised, the urging member suppresses the wire from being wound in a mountain shape, so that the wire is prevented from coming off beyond the winding member.

  In the wire winding / feeding device according to the first aspect of the invention, the wire is prevented from coming off beyond the winding member, or the winding member and the wire are prevented from being entangled.

  In the wire winding and unwinding device according to the second invention, even when the height of the wound wire is changed, the gap between the wire and the biasing member is instantaneously packed, so that the wire comes off from the winding member, Or it is prevented that a winding member and a wire get entangled.

  In the wire winding / feeding device according to the third aspect of the present invention, the friction between the wire and the biasing member is small, and damage to the wire is suppressed. Further, frictional noise between the wire and the biasing member is also suppressed.

  In the wire winding / unwinding device according to the fourth aspect of the invention, the durability of the urging member is improved.

  In the wire winding / unwinding device according to the fifth aspect of the invention, the urging member can easily follow the winding shape of the wire, saving space.

  In the wire winding / feeding device according to the sixth aspect of the invention, the urging member alone can be attached to the winding member and the wire, and is prevented from coming off and falling.

  In the wire winding and unwinding device according to the seventh aspect of the invention, the urging member cannot swing in the direction of the rotation axis when the winding member rotates, so that the wire is stably wound around the winding member.

  In the movable panel lifting / lowering apparatus for an air conditioning indoor unit according to the eighth aspect of the present invention, when the movable panel is lowered, the winding member and the wire are prevented from being tangled. Further, when the movable panel is raised, the wire is prevented from coming off beyond the winding member.

  Embodiments of the present invention will be described below with reference to the drawings. The following embodiments are specific examples of the present invention and do not limit the technical scope of the present invention.

<Configuration of air conditioning indoor unit 2>
FIG. 1 is an external perspective view of an air conditioning indoor unit equipped with a lifting device according to an embodiment of the present invention. In FIG. 1, the air conditioning indoor unit 2 includes a main body 20 having a suction port 20a and an outlet 20b on a lower surface, a movable panel 24 that opens and closes the suction port 20a, and a first air direction adjusting blade 52 that opens and closes the outlet 20b. ing. The suction port 20a and the air outlet 20b are adjacent to each other with a certain distance therebetween, so that a phenomenon in which air blown from the air outlet 20b is sucked into the air inlet 20a, that is, a so-called short circuit does not occur. The lower surface of the main body 20 is covered with a decorative panel 21, and it is the decorative panel 21 that is actually exposed to the ceiling surface. The outlines of the suction port 20 a and the air outlet 20 b are formed by the decorative panel 21. Here, the decorative panel 21 is also included in the main body 20.

  FIG. 2A is a side view when the operation of the air-conditioning indoor unit is stopped, FIG. 2B is a side view when the air-conditioning indoor unit is operated, and FIG. FIG. 2A, 2B, and 2C, the movable panel 24 is apparently integrated with the decorative panel 21 when the air conditioning indoor unit 2 is stopped. In FIG.2 (b), when the air-conditioning indoor unit 2 operates, the movable panel 24 opens the suction inlet 20a, and the 1st wind direction adjustment blade | wing 52 opens the blower outlet 20b. One end of the movable panel 24 is supported by the main body 20 by a hinge, and the movable panel 24 rotates to open the suction port 20a.

  Moreover, in FIG.2 (c), the movable panel 24 can be lowered | hung to the maintenance position which a user's hand reaches in the state hung on the wire 71 extended from the main body 20 side. However, since the movable panel 24 cannot be lowered to the maintenance position when one end is supported by the main body 20 with a hinge, the maintenance is performed after the suction port 20a is closed and the support by the main body 20 is released. Descent to position.

  FIG. 3 is a cross-sectional view of the air conditioning indoor unit. In FIG. 3, the air conditioning indoor unit 2 further includes a filter 9, a filter cleaning mechanism 10, an indoor heat exchanger 12, an indoor fan 13, a drain pan 14, and an outlet module 50. During the operation of the air conditioning indoor unit 2, the inlet 20a and the outlet 20b are opened, the indoor fan 13 is rotated, and air is sucked from the inlet 20a.

(Indoor heat exchanger 12)
The indoor heat exchanger 12 has a shape in which two heat exchangers are adjacent to each other in different inclined postures. For convenience of explanation, the upper heat exchanger is the upper heat exchanger 12a and the lower heat exchanger is the lower heat exchanger. This is called the exchanger 12b.

  The upper end of the upper heat exchanger 12a is located on the inner upper side of the main body 20, and the angle inclined from the upper end to the lower end is set to 45 ° or more and 65 ° or less (preferably 55 °) with respect to the horizontal line, Condensed water is surely transmitted through the upper heat exchanger 12a to the drain pan 14. For this reason, the drain pan 14 does not need to be disposed in the entire lower area of the upper heat exchanger 12a, and is disposed only in the vicinity of the lower end of the upper heat exchanger 12a.

  The upper end of the lower heat exchanger 12b is disposed close to the lower end of the upper heat exchanger 12a, and the angle inclined from the upper end toward the lower end is less than 45 ° with respect to the horizontal line. For this reason, since condensed water may fall directly, the drain pan 14 is arrange | positioned in the downward whole area of the lower heat exchanger 12b.

(Indoor fan 13)
The indoor fan 13 is a cross-flow fan, has a width dimension longer than the diameter, and sucks air from the direction perpendicular to the rotation axis. Therefore, the indoor fan 13 sucks air from the single suction port 20a to the single blower outlet 20b. Can be blown out. The sucked air passes through the filter 9 and the indoor heat exchanger 12 and enters the indoor fan 13.

  The air blown out from the indoor fan 13 passes through the blowout outlet module 50 and is blown out from the blowout opening 20b. The blower outlet 20b is provided with a first wind direction adjusting blade 52, which is a component of the blower outlet module 50. The first wind direction adjusting blade 52 can be adjusted in inclination angle by a motor, and when the operation is stopped. The 1st wind direction adjustment blade | wing 52 closes the blower outlet 20b. A tongue portion 15 is provided between the indoor fan 13 and the drain pan 14 and on the side of the blowout flow passage 41a, and this tongue portion 15 prevents leakage of blown air and improves performance.

<Filter cleaning mechanism 10>
As shown in FIG. 3, the air conditioning indoor unit 2 includes a filter cleaning mechanism 10 above the movable panel 24. Hereinafter, components of the filter cleaning mechanism 10 will be described.

(Filter 9)
The filter 9 is disposed on the front side of the indoor heat exchanger 12 and removes dust from the air taken in from the room. Thus, the filter 9 prevents dust floating in the air from contaminating the surface of the indoor heat exchanger 12. A rack 101 that meshes with the pinion gear 102 a is formed at the edge of the filter 9.

(Roller 102)
The roller 102 has a pinion gear 102a. The pinion gear 102a meshes with the rack 101 of the filter 9, and moves the filter 9 horizontally by rotating.

(Position detection switch 107)
The stop position of the filter 9 is detected by the position detection switch 107. The position detection switch 107 is arranged near the end of the front storage unit 105 and near the end of the rear storage unit 106. A lever is attached to the outside of the position detection switch 107 by a hinge. When an external force is applied, the lever rotates and pushes the button of the position detection switch 107.

(Brush 108 and dust box 109)
The brush 108 is located on the opposite side of the roller 102 with the filter 9 in between and is in contact with the filter 9. The dust box 109 has a dust inlet near the upper air outlet 20b, and supports the rotating shaft of the brush 108 via a bearing at both ends in the longitudinal direction of the dust inlet. Further, a comb portion 109c is attached to the dust intake port to remove the dust scraped off from the filter 9 by the brush 108 from the brush 108.

(Cleaning operation of the filter 9)
In the air conditioning indoor unit 2, the filter 9 is automatically cleaned by the control unit periodically or when the user requires it. The mechanism will be described below.

  In FIG. 3, the rack 101 of the filter 9 is housed in the front storage portion 105, and one end of the rack 101 (hereinafter referred to as the first end portion) is engaged with the pinion gear 102a. When the roller 102 rotates, the rotation is transmitted from the pinion gear 102 a to the rack 101, and the rack 101 of the filter 9 is conveyed to the rear storage unit 106 side by the roller 102. As the roller 102 continues to rotate, the first end portion of the rack 101 reaches the end of the rear storage portion 106.

  When the filter 9 moves, dust adhering to the surface of the filter 9 is scraped off by the brush 108 and stored in the dust box 109. The brush 108 is rotating at least during the period when the filter 9 is moving from the front storage portion 105 to the rear storage portion 106, and the rotation direction thereof is a direction opposite to the traveling direction of the filter 9.

  When the filter 9 moves from the front storage unit 105 to the rear storage unit 106 and the dust removal is completed, the control unit rotates the roller 102 in the reverse direction. The other end of the rack 101 of the filter 9 (hereinafter referred to as the second end) is meshed with the pinion gear 102 a, so that rotation is transmitted from the pinion gear 102 a to the rack 101, and the filter 9 is housed forward by the roller 102. It is conveyed to the part 105 side. As the roller 102 continues to rotate in the reverse direction, the second end portion of the rack 101 reaches the end of the front storage portion 105.

<Apparatus related to operation of movable panel 24>
FIG. 4 is a perspective view of the decorative panel. As shown in FIG. 4, the hinge connecting device 6 and the lifting device 7 are arranged on the ceiling-side surface of the decorative panel 21.

(Hinge connection device 6)
The hinge coupling device 6 rotatably supports one end of the movable panel 24 when the air conditioning indoor unit 2 is operated, and releases the support of the one end of the movable panel 24 when the movable panel 24 is lowered to the maintenance position. Specifically, when the motor 65 of the hinge coupling device 6 rotates, the rotation lever 61 moves in parallel with the longitudinal direction of the movable panel 24 to perform connection or disconnection with the movable panel 24. Here, for convenience of explanation, the rotation of the motor 65 so as to move the rotation lever 61 in the direction connecting the movable panel 24 is called normal rotation, and the motor 65 connects the rotation lever 61 and the movable panel 24. Rotating to move in the direction to release is called reverse rotation.

  A support hole that faces the support shaft of the rotation lever 61 is provided at the end of the movable panel 24, the motor 65 rotates forward, and the support shaft of the rotation lever 61 is inserted into the support hole of the movable panel 24. When the rotation lever 61 and the movable panel 24 are connected, the movable panel 24 can rotate around the rotation axis of the rotation lever 61.

  On the other hand, when the motor 65 reverses and the support shaft of the rotation lever 61 comes out of the support hole of the movable panel 24, the connection between the rotation lever 61 and the movable panel 24 is released, and the movable panel 24 rotates. The lever 61 cannot rotate around the rotation axis.

(Elevating device 7)
FIG. 5 is an arrangement view of components inside the lifting device, and FIG. 6 is an exploded perspective view of a wire winding / feeding mechanism of the lifting device. 5 and 6, the lifting device 7 includes a biasing member 70, a wire 71, a pulley 72, a bobbin 73, a lifting motor 76, and a case 78.

  A suspension fitting 708 is connected to the tip of the wire 71. The hanging metal fitting 708 has a first ring 708 a and a second ring 708 b, the first ring 708 a is connected to the wire 71, and the second ring 708 b is connected to the movable panel 24.

  The pulley 72 has a pulley portion 72 a and a cam portion 72 b that are integrally formed. The pulley portion 72 a supports the wire 71 and rotates as the wire 71 moves. The cam portion 72b includes a small-diameter curved surface, a large-diameter curved surface, and a plane connecting both the curved surfaces.

  The bobbin 73 has a bobbin shape, and has an outer peripheral surface 73a around which the wire 71 is wound, and a flange 73b that sandwiches the outer peripheral surface 73a from both ends. The flange 73b has a diameter larger than that of the outer peripheral surface 73a, and sandwiches the wire 71 from both ends of the outer peripheral surface 73a so that the wire 71 wound around the outer peripheral surface 73a does not come off from both ends of the outer peripheral surface 73a.

  An arcuate urging member 70 is arranged to face the outer peripheral surface 73a of the bobbin 73. The biasing member 70 has an arc portion 70a and a restricting portion 70b. The arc portion 70a has an arc shape with a central angle of 180 ° or more, and can follow the outer peripheral surface 73a by an elastic force. When the wire 71 is not wound around the outer peripheral surface 73a, the arc portion 70a covers the outer peripheral surface 73a, and when the wire 71 is wound around the outer peripheral surface 73a, the wrapped wire 71 is covered to cover the wire 71 with the outer peripheral surface 73a. Press on.

  The restricting portion 70b restricts the wire 71 just before being wound around the outer peripheral surface 73a so as not to pass through the track deviated from the outer peripheral surface 73a. Therefore, when the wire 71 is swung in the direction of the rotation axis of the bobbin 73 just before the wire 71 is wound around the outer peripheral surface 73a, the restricting portion 70b restricts the swing of the wire 71 to be within the width of the outer peripheral surface 73a.

  Since the urging member 70 is made of resin, the wire 71 is damaged, and the frictional noise between the wire 71 and the urging member 70 is also suppressed. However, the material of the urging member 70 is not limited to resin, and may be made of metal in order to enhance durability.

  The raising / lowering motor 76 is a stepping motor, and the rotating shaft 76a rotates the bobbin 73 directly. The number of rotations of the lifting motor 76 is controlled by the number of pulses supplied from the control unit. The control unit includes a CPU, a memory, and a motor drive circuit, and is disposed at another position away from the lifting device 7. The elevating motor 76 and the control unit are electrically connected by a wire harness.

  The urging member 70, the wire 71, the pulley 72, the bobbin 73, and the lifting / lowering motor 76 are main components constituting the wire winding / feeding mechanism of the lifting / lowering device 7. The elevating device 7 further includes a first switch 77 and a second switch 177 in addition to the wire winding / feeding mechanism.

  The first switch 77 is a micro switch having a lever 77a and is turned on when the lever 77a is pressed. The lever 77a is always in contact with the cam portion 72b of the pulley 72 and is pushed when facing the large-diameter curved surface of the cam portion 72b. The first switch 77 is also electrically connected to the control unit by a wire harness.

  The second switch 177 is a micro switch having a lever 177a and is turned on when the lever 177a is pushed through the hinge member 177b. When the movable panel 24 closes the suction port 20a, the hinge member 177b is pushed by the movable panel 24 and rotates to push the lever 177a of the second switch 177. When the movable panel 24 opens the suction port 20a, the hinge member 177b is not pushed by the movable panel 24, so that it rotates in the direction in which gravity acts and moves away from the lever 177a of the second switch 177. The second switch 177 is also electrically connected to the control unit via a wire harness.

  The case 78 is formed with a first storage portion 78 a for storing the pulley 72 and a second storage portion 78 b for storing the bobbin 73. With the wire 71 wound around the outer peripheral surface 73 a of the bobbin 73, the arc portion 70 a of the urging member 70 is stored in the second storage portion 78 b together with the bobbin 73 while being covered with the wire 71.

  A wire passage 78c through which the wire 71 passes is formed between the first storage portion 78a and the second storage portion 78b, and the restricting portion 70b of the urging member 70 is stored near the bobbin 73 of the wire passage 78c. The A guide rib 78d for guiding the wire 71 to the center of the wire passage 78c is disposed near the pulley 72 of the wire passage 78c.

(Operation of lifting device 7)
In FIG. 5, when the lifting device 7 feeds the wire 71, the lifting motor 76 rotates the bobbin 73 in the CCW direction. As a result, the bobbin 73 rotates in the direction of feeding the wire 71. On the other hand, when the lifting device 7 winds the wire 71, the lifting motor 76 rotates the bobbin 73 in the CW direction. As a result, the bobbin 73 rotates in the direction of winding the wire 71. The feeding amount and winding amount of the wire 71 are proportional to the rotation amount of the lifting motor 76, and the control unit controls the number of pulses supplied to the lifting motor 76, whereby the feeding amount and winding amount of the wire 71 are controlled. Is controlled.

  Since the wire 71 is connected to the movable panel 24 via the hanging metal fitting 708, the tension is always generated in the wire 71, and when the wire 71 is drawn out or wound up, the pulley portion 72a. Is rotated by the frictional force with the wire 71. At this time, since the cam portion 72b also rotates, the first switch 77 issues an ON signal when the lever 77a faces the large-diameter curved surface of the cam portion 72b, and issues an OFF signal when the lever 77a faces the small-diameter curved surface. . While the pulley 72 is rotating, an on signal and an off signal are alternately generated, and these signals are all input to the control unit.

  However, when the wire 71 is loosened due to some reason and the tension is lost, for example, when the wire 71 is drawn out for maintenance and the movable panel 24 is lowered, the movable panel 24 is moved before reaching the predetermined feed amount. When landing on a table or the like and stopping, the frictional force between the wire 71 and the pulley portion 72a decreases, and the pulley 72 stops. For this reason, either the ON signal or the OFF signal is continuously output from the first switch 77. At this time, since the signal from the first switch 77 is constant when the lifting motor 76 is rotating, the control unit estimates that the movable panel 24 has stopped due to some obstacle, and immediately the lifting motor 76 76 is stopped.

(Movable panel open / close operation)
FIG. 7 is a perspective view of a state in which the movable panel opens the suction port. In FIG. 7, when the lifting device 7 feeds the wire 71 in a state where the hinge connecting device 6 is connected to the movable panel 24, the movable panel 24 is lowered by its own weight. However, since the end of the movable panel 24 is coupled to the hinge coupling device 6, the movable panel 24 rotates about the rotation axis of the rotation lever 61 in the direction to open the suction port 20 a.

  On the other hand, when the lifting device 7 winds the wire 71, the movable panel 24 rises, but the end of the movable panel 24 is connected to the hinge connecting device 6, so that the movable panel 24 rotates the rotation lever 61. The suction port 20a is rotated around the axis in the closing direction.

(Elevating operation of movable panel)
FIG. 8 is a perspective view of the movable panel in a lowered state. In FIG. 8, when the hinge connecting device 6 releases the connection with the end of the movable panel 24 and the lifting device 7 feeds the wire 71, the movable panel 24 is lowered by its own weight. On the other hand, when the elevating device 7 winds the wire 71, the movable panel 24 rises and the movable panel 24 closes the suction port 20a.

<Features>
(1)
The lifting device 7 rotates the bobbin 73 by the lifting motor 76 and winds the wire 71 around the outer peripheral surface 73 a of the bobbin 73. The wire 71 wound around the outer peripheral surface 73a of the bobbin 73 is covered with an elastic force by a resin-made biasing member 70, and presses the wire 71 toward the outer peripheral surface 73a. When the bobbin 73 winds up the wire 71, the urging member 70 presses the wire 71 wound in a mountain shape, so that the wire 71 is wound evenly around the outer peripheral surface 73 a, and the wire 71 comes off beyond the bobbin 73. It is prevented. Further, even when the height of the wound wire 71 changes, the gap between the wire 71 and the biasing member 70 is instantaneously filled, so that the wire 71 is prevented from being loosened and unwound.

(2)
The urging member 70 has a restricting portion 70 b that guides the wire 71 to the outer peripheral surface 73 a before the wire 71 is wound around the bobbin 73. The restricting portion 70 b also has a function of preventing the bobbin 73 from swinging in the direction of the rotation axis when the bobbin 73 is rotated, so that the wire 71 is stably wound around the bobbin 73.

  As described above, according to the present invention, the movable panel lifting and lowering device for an air conditioning indoor unit that lifts and lowers the movable panel suspended through the wire in the vicinity of the air suction port by the operation of the wire is useful.

The external appearance perspective view of the air-conditioning indoor unit provided with the raising / lowering apparatus which concerns on one Embodiment of this invention. (A) The side view at the time of operation stop of an air-conditioning indoor unit. (B) The side view at the time of the driving | running of an air-conditioning indoor unit. (C) The side view at the time of the maintenance of an air-conditioning indoor unit. Sectional drawing of an air-conditioning indoor unit. The perspective view of a makeup | decoration panel. The layout of the components inside the lifting device. The disassembled perspective view of the wire winding and unwinding mechanism of the lifting device. The perspective view of the state in which the movable panel opened the suction inlet. The perspective view in the state where the movable panel is descending.

Explanation of symbols

2 Air-conditioning indoor unit 20 Main body 20a Suction port 24 Movable panel 70 Energizing member 70a Arc part 70b Restriction part 71 Wire 73 Bobbin (winding member)
73a outer peripheral surface 76 motor

Claims (8)

A wire winding / unwinding device for winding or unwinding a wire (71) connected to an object,
A motor (76);
A winding member (73) that is rotationally driven by the motor (76) and the wire (71) is wound around the outer peripheral surface (73a);
A biasing member that contacts the wire (71) in a wound state from the outer peripheral side of the winding member (73) and presses the wire (71) against the outer peripheral surface (73a) of the winding member (73). (70),
With
Wire take-up and feeding device (7). The urging member (70) follows the height change from the outer peripheral surface (73a) of the wire (71) by elastic deformation,
A wire take-up / feeding device (7) according to claim 1. The biasing member (70) is made of resin.
A wire take-up / feeding device (7) according to claim 1. The biasing member (70) is made of metal;
A wire take-up / feeding device (7) according to claim 1. The longitudinal section of the biasing member (70) is arcuate,
A wire take-up / feeding device (7) according to claim 1. The urging member (70) is formed with an arc (70a) having a central angle of 180 ° or more with respect to the center of the arc shape.
The wire winding / unwinding device (7) according to claim 5. The urging member (70) is provided with a restricting member (70b) for restricting the deflection of the wire (71) in the central axis direction of winding or feeding.
The wire winding / unwinding device (7) according to claim 5. Air conditioning in which the movable panel (24) suspended via the wire (71) is moved up and down and / or the air suction port (20a) is opened and closed by the operation of the wire (71) in the vicinity of the air suction port (20a). A movable panel lifting device for an indoor unit,
The wire winding and unwinding device (7) according to any one of claims 1 to 7, wherein the wire (71) is operated.
A movable panel lifting device for air conditioning indoor units.

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