JP2009210207A - Louver device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a louver device changing the position or attitude of a louver by a small number of parts. <P>SOLUTION: The louver device 1 has a tabular louver 5 extending with a predetermined width size, and three louver support members 21, 22, 23 supporting the louver 5 at three places in a longitudinal direction (a horizontal direction) of the louver 5. Motors advancing and withdrawing the louver support members 21, 22 are mounted on a first fixed body 31 and a second fixed body 32. A motor and a transmission mechanism rotating the louver 5 around a horizontal axis L2 are composed on an end of the louver support member 21. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a louver device including a louver that changes a flow path of a fluid at an outlet of an air conditioner or a hot air heater.

A louver is arranged in a state where the louver is supported by a louver support member at a plurality of locations in the longitudinal direction at an outlet of an air conditioner, a hot air heater, or the like. Are switched (for example, refer to Patent Document 1).
JP 7-43024 A

  Here, the inventor of the present application proposes that the position and posture of the louver are more complicatedly controlled in an air conditioner or the like so that cold air and hot air are uniformly distributed throughout the room. In order to realize such a configuration, for example, a louver that changes a fluid flow path is supported by a fixed body via a louver support member, and a louver support member is mounted by a first motor mounted on the fixed body. A louver that oscillates the tip side and supports the rotation of the second motor mounted on the fixed body from the second motor to the tip side of the louver support member via a train wheel mounted on the louver support member. The structure which transmits to can be considered.

  However, when such a configuration is adopted, since it is necessary to arrange a large number of gears over a long distance from the second motor mounted on the fixed body to the tip of the louver support member, it is necessary to use many components. There is a problem that the cost increases.

  In view of the above problems, an object of the present invention is to provide a louver device that can switch the position and posture of a louver with a small number of parts.

  In order to solve the above-mentioned problems, in the present invention, in a louver device having a fixed body, a louver support member supported by the fixed body, and a louver supported by a distal end portion of the louver support member, the fixed body includes A first motor mounted; a first transmission mechanism for displacing the louver support member with respect to the fixed body using the first motor as a drive source; and a second motor mounted on a distal end portion of the louver support member; And a second transmission mechanism that swings the louver around an axis that passes through the distal end portion of the louver support member using the second motor as a drive source.

  In the present invention, since the second motor for swinging the louver is mounted on the louver support member itself, the second motor is mounted on the fixed body and the driving force of the second motor is transmitted to the tip side. Unlike the case, it is not necessary to arrange a large number of gears over a long distance. Therefore, according to the present invention, the position and orientation of the louver can be switched with a small number of parts, and the louver support member can be reduced in size, and further, the louver device can be reduced in size and cost.

  In the present invention, a plurality of the louver support members are arranged in the longitudinal direction of the louver, and the fixed body is divided so as to correspond to each of the plurality of louver support members, and the first motor And a plurality of sets of the first transmission mechanisms are configured to drive at least two louver support members among the plurality of louver support members, and the plurality of first motors are all stepping motors. preferable. If comprised in this way, a several louver support member can be driven synchronously only by operating a several 1st motor which consists of a stepping motor synchronizing. For this reason, it is not necessary to mechanically connect the plurality of louver support members with the transmission shaft for the purpose of driving the plurality of louver support members in synchronization. For this reason, since it is not necessary to incorporate a louver device into an air conditioner body or the like in a state where a plurality of louver support members are mechanically connected by a transmission shaft, assembly work is easy. In addition, there is no need to mechanically connect a plurality of louver support members with a transmission shaft, and the fixed body is divided for each of the plurality of louver support members. The front surface of the main body only needs to have a space in which the base end sides of the plurality of louver support members can be individually inserted, so there is no need to open a large space on the front surface of the air conditioner main body. Furthermore, since it is not necessary to mechanically connect the plurality of louver support members with the transmission shaft, the space sandwiched between the louver support members can be used effectively.

  In the present invention, a plurality of the louver support members are arranged in a longitudinal direction of the louver, and the first motor and the first transmission mechanism are configured to a part of the louver support members. Preferably, a biasing member that biases the other louver support member toward one side in the driving direction is preferably disposed between the other louver support member and the fixed body. If comprised in this way, since it is not necessary to provide a 1st motor and a 1st transmission mechanism in each of several louver support members, the cost of a louver apparatus can be reduced. A biasing member that biases the other louver support member toward one side in the driving direction is disposed between the louver support member on which the first motor and the first transmission mechanism are not mounted and the fixed body. Then, such urging force can be used for driving the louver support member. Therefore, play due to backlash of the first transmission mechanism can be prevented.

  In the present invention, the louver support member has a hollow structure having an opening at a base end side end, and the wiring member for the second motor passes through the louver support member from the distal end side of the louver support member. It is preferable that it is pulled out from the opening. With this configuration, even if the louver support member swings, deformation of the wiring member can be minimized, so that even if the second motor is mounted on the tip of the louver support member, Short circuit can be prevented and the reliability of the louver device can be improved.

  In the present invention, a plurality of the louver support members are arranged in the longitudinal direction of the louver, and the second motor and the second transmission mechanism are provided only on some louver support members among the plurality of louver support members. Is preferably configured. If comprised in this way, the position and attitude | position of a louver can be switched with few components, and size reduction and cost reduction of a louver apparatus can be achieved. In addition, the presence of obstacles that obstruct the flow around the louver can be minimized.

  In the present invention, it is preferable that the second transmission mechanism includes an output member that performs rotational output to the louver on a rotation center axis of a rotor included in the second motor. If comprised in this way, since a 2nd transmission mechanism can be arrange | positioned coaxially with respect to a 2nd motor, the structure of the front end side of a louver support member can be simplified and reduced in size.

  In the present invention, the louver support member is driven to reciprocate within a predetermined angular range by the first motor and the first transmission mechanism, and the louver, the second motor, and the second transmission mechanism are moved to the louver support member. The center of gravity of the louver support member in the state of being mounted on is located on the tip side from the vertical line passing through the center of rotation when the louver support member is rotationally driven, regardless of the position within the angular range. Is preferred. That is, in the present invention, since the load of the second motor, the second transmission mechanism, and the louver is applied to the tip side of the louver support member, the load applied to the louver support member is large, but the louver, the second motor, and the second A vertical line passing through the center of rotation when the louver support member is rotationally driven regardless of the position of the center of gravity of the louver support member in the state where the transmission mechanism is mounted on the louver support member. If it is on the more distal end side, the direction of the force applied from the louver support member side toward the first transmission mechanism and the first motor is constant. Therefore, it is possible to prevent unnatural movement caused by backlash or the like in the first transmission mechanism. In addition, the louver support member does not rattle even if an airflow hits the louver by the amount of load applied to the louver support member.

  In the present invention, the second motor for swinging the louver is mounted on the louver support member itself. For this reason, unlike the case where the second motor is mounted on the fixed body, it is not necessary to arrange a large number of gears over a long distance. Therefore, according to the present invention, the position and orientation of the louver can be switched with a small number of parts, and the louver device can be reduced in size and cost.

  A louver device to which the present invention is applied will be described below with reference to the drawings. In the following description, in indicating the position and direction, the right side and the left side are referred to from the tip side where the louver is located, the side from which the airflow is blown is referred to as “front”, and the opposite side is referred to as “ "Back".

(overall structure)
FIG. 1 is a perspective view of a louver device to which the present invention is applied. FIG. 1 (a) shows a state in which the louver is in an obliquely upward posture at a retracted position, and FIG. 1 (b) shows a louver. A state in which the vehicle is in an obliquely downward posture at the advanced position is shown.

  1 (a) and 1 (b), a louver device 1 according to the present embodiment includes a plate-like louver 5 extending with a predetermined width dimension and three louvers 5 in the longitudinal direction (left-right direction) of the louver 5. A plurality of louver support members (a first louver support member 21, a second louver support member 22, and a third louver support member 23) that support the louver support members 21, 22, and 23. Correspondingly, a plurality of fixed bodies (first fixed body 31, second fixed body 32, and third fixed body 33) are provided. The first fixed body 31, the second fixed body 32, and the third fixed body 33 are each fixed to an air conditioner body on which the louver device 1 is mounted. Each of the three louver support members 21, 22, and 23 is a thin arm body in a direction orthogonal to the longitudinal direction of the louver 5 so as not to block the wind passage, and each tip portion is formed on the upper surface of the louver 5. The louver 5 is supported via the connecting plate portions 51, 52, 53.

  In the louver device 1 of this embodiment, the three louver support members 21, 22, and 23 move between the rear position shown in FIG. 1 (a) and the front position shown in FIG. 1 (b). The louver 5 also moves forward and backward. Here, the louver support members 21, 22, and 23 rotate around the horizontal axis L1 when moving from the retracted position shown in FIG. 1A to the advanced position shown in FIG. 1B. Accordingly, as the louver support members 21, 22, and 23 move from the retracted position shown in FIG. 1A to the advanced position shown in FIG. Is located below, the louver 5 also moves downward. Further, in the louver device 1 of the present embodiment, the louver 5 rotates around the horizontal axis L2 passing through the tip portions of the three louver support members 21, 22, 23, and changes its direction. For the purpose of performing such an operation, the louver device 1 of the present embodiment has a configuration described below.

(First louver support member 21 and its surrounding structure)
FIG. 2 is a perspective view showing the configuration of the louver support member located on the rightmost side and the surrounding structure among the three louver support members arranged in the louver device to which the present invention is applied. 3, 4, and 5 are respectively an exploded perspective view of the louver support member positioned on the rightmost side in the louver device to which the present invention is applied and its surroundings, an exploded perspective view of the louver support member, and a louver support member It is a disassembled perspective view of the rotor etc. which were used for the motor incorporated in the front-end | tip part.

  First, as shown in FIGS. 1 and 2, a portion from the base end side of the first louver support member 21 to the center portion is inserted into the first fixed body 31.

  As shown in FIG. 3, the first fixed body 31 includes a first case 311 and a second case 312 that are disposed so as to sandwich the louver support member 21 from both the left and right sides. A portion extending from the base end side of the louver support member 21 to the central portion is disposed in a hollow portion formed between the cases 312. The first fixed body 31 includes a motor cover 313 on the opposite side of the second case 312 from the first case 311, and the motor cover 313 and the second case 312 are fixed by screws 314. . The second case 312 is fixed to the first case 311 with a screw 315.

  A stator holding portion 312a that holds the cylindrical stator 611 of the first motor 61 is formed at a substantially central portion of the second case 312. The rotor 612 is placed inside the stator 611 held by the stator holding portion 312a. Is placed. Further, a hole 312b into which the pinion 712 of the compound gear 711 interlocked with the rotor 612 of the first motor 61 is formed at the bottom of the stator holding portion 312a. Between the rotor 612 and the composite gear 711, internal teeth 715 formed on the cylindrical portion 714 of the composite gear 711, planetary carriers 612a formed inside the rotor 612, and internal teeth formed on the motor cover 313 (not shown). ) Constitutes a planetary gear mechanism 76b (deceleration mechanism), and the rotation of the rotor 612 is decelerated by the planetary gear mechanism 76b and transmitted to the compound gear 711.

  The pinion 712 of the compound gear 711 partially protrudes into the space formed between the second case 312 and the first case 311 through the hole 312b formed in the second case 312, and the first louver. The support member 21 meshes with an arcuate tooth portion 211 formed from the base end side to the center portion. Further, an arc portion 213 concentric with the tooth portion 211 is formed on the radially outer side with respect to the tooth portion 211 from the proximal end side to the center portion of the first louver support member 21. The guide mechanism 76a is configured to slide along an arcuate guide surface formed on the inner surface of the second case 312. For this reason, when the rotation of the first motor 61 is decelerated and transmitted to the compound gear 711, the rotation of the compound gear 711 is transmitted through the pinion 712 of the compound gear 711 to the tooth portion 211 of the first louver support member 21. Is transmitted to. Therefore, the first louver support member 21 is guided to a guide mechanism 76a configured by an arc portion 213 formed in the first louver support member 21 itself and an arc-shaped guide groove formed in the second case 312. However, the tooth portion 211, the arc portion 213, and the arcuate guide surface rotate around the horizontal axis L1 passing through the common center, and the retracted position shown in FIG. 1 (a) and the advanced position shown in FIG. 1 (b). Reciprocate between.

  As described above, in this embodiment, the first motor 61 including the stepping motor including the stator 611 and the rotor 612 is mounted on the first fixed body 31 and is configured between the rotor 612 and the compound gear 711. The planetary gear mechanism 76b, the pinion 712 of the composite gear 711, and the arcuate tooth portion 211 that meshes with the pinion 712 on the first louver support member 21 side, the first louver support member 21 using the first motor 61 as a drive source. Is configured with respect to the first fixed body 31 around the horizontal axis L1.

  As shown in FIG. 4, the first louver support member 21 includes an arm-shaped case body 216 and an arm-shaped lid body 217, and the case body 216 and the lid body 217 are stopped by screws or the like. Forming a hollow body. The case body 216 and the lid body 217 have arm portions 216a and 217a extending from the base end side toward the distal end side, and circular portions 216b and 217b, and the case body 216 and the lid body 217 are overlapped. In a fixed state, the circular portion 216b of the case main body 216 and the circular portion 217b of the lid 217 have a disk-like shape to which the rotation of the second motor 81 made of a stepping motor and the rotor 812 of the second motor 81 is transmitted. A space for accommodating the output member 913 and the like is formed. The output member 913 has a protrusion 913 formed on one surface of the disc portion 911, and the protrusion 913 is positioned on the horizontal axis L2 described with reference to FIGS. 1 (a) and 1 (b). The protrusion 913 is connected to the connecting plate portion 51 shown in FIGS. 1A and 1B and drives the louver 5 around the horizontal axis L2. Here, two-stage planetary gear mechanisms 91a and 91b (deceleration mechanisms) are formed between the second motor 81 and the output member 913, and the rotation output of the second motor 81 is the planetary gear mechanisms 91a and 91b. Is decelerated in two stages and transmitted to the output member 913.

  The configuration of the planetary gear mechanism 91a will be described in detail with reference to FIGS. 6 and 7. As shown in FIG. 5, the rotor 812 has a cylindrical shape that supports the planetary gear 812t via a planetary gear support shaft 812s. A planetary carrier 812a and a cylindrical rotor magnet 812b are provided, and the rotor magnet 812b is fixed to the outer peripheral surface of the planet carrier 812a. The planetary gear 812t constitutes the planetary gear mechanism 91a together with the sun gear and the like with the internal teeth 217e formed on the inner peripheral surface of the cylindrical portion 217d formed in the circular portion 217b of the lid 217 shown in FIG. The rotation of 812 is decelerated by the planetary gear mechanism 91a and output from the output member 912 shown in FIG. In the planetary gear mechanism 91 a having such a configuration, each member is disposed coaxially with respect to the rotor 812.

  Further, as shown in FIG. 4, a planetary gear mechanism 91 b is configured for the output member 912. In configuring the planetary gear mechanism 91b, a sun gear composed of a gear 912b formed on the output member 912 and an annular planet carrier 914 holding three planetary gears 915 are used. The rotation is sufficiently decelerated and transmitted to the output member 913.

  In this manner, in the present embodiment, the second motor 81 formed of a stepping motor including the stator 811 and the rotor 812 is mounted on the distal end portion of the first louver support member 21, and the connecting plate between the rotor 812 and the louver 5. The planetary gear mechanisms 91a and 91b, which are configured between the first and second parts 51, constitute a second transmission mechanism 91 that rotates the louver 5 around the horizontal axis L2 using the second motor 81 as a drive source.

  Here, in the first louver support member 21, a notch-shaped opening 217 x is formed at the proximal end of the lid 217, and the flexible wiring board 814 (wiring member) extending from the stator 811 is a stator. A driving circuit (not shown) formed in the air conditioner body is drawn from the front end portion of the first louver support member 21 on which 811 is disposed, through the inside of the first louver support member 21 to the outside through the opening 217x. Connected.

(Configuration of planetary gear mechanism 91a)
6 and 7 are a longitudinal sectional view and an exploded perspective view schematically showing the configuration of the planetary gear mechanism 91a used in the louver device according to the present invention.

  As shown in FIGS. 6 and 7, in the planetary gear mechanism 91a, the inner teeth 217e are formed on the inner peripheral surface of the cylindrical portion 217d (first internal gear body) formed in the lid 217. A planetary carrier support shaft 217t stands up at the center of the cylindrical portion 217d, that is, at the center of the internal teeth 217e. In the rotor 812, in the planet carrier 812a arranged inside the rotor magnet 812b, a cylindrical portion 812h in which a shaft hole 812g extending in the motor axial direction is formed, and a first planet formed in the lower end portion of the cylindrical portion 812h. A gear support portion 812i and a second planetary gear support portion 812j fixed to the upper end portion of the cylindrical portion 812h are provided, and the arcuate plate portion 812k serves as a connecting portion between the cylindrical portion 812h and the cylindrical portion 812m. Yes. A planet carrier support shaft 217t is fitted in the shaft hole 812g formed in the cylindrical portion 712h, and the rotor 812 is rotatably supported by the planet carrier support shaft 217t.

  In the planet carrier 812a, two shaft holes 812n are formed in the first planetary gear support portion 812i, while two shaft holes 812p are formed in the second planetary gear support portion 812j, and the shaft hole 812n is formed. , 812p are fitted and fixed at both ends of two planetary gear support shafts 812s. In the planet carrier 812a, the two planetary gears 812t are rotatably supported by the planetary gear support shaft 812s. External teeth are formed on the outer peripheral surface of the planetary gear 812t. Among these external teeth, a first external gear portion is constituted by the lower half portion in the axial direction, and a second external gear is constituted by the upper half portion. The part is composed.

  An output member 912 (second internal gear body) is rotatably supported on the planetary carrier support shaft 217t. The output member 912 includes a thin cylindrical portion extending downward from the thick cylindrical portion, and second internal teeth 912a (second internal teeth) are formed on the inner peripheral surface of the cylindrical portion. . In the output member 912, external teeth 912b are formed on the outer peripheral surface of the cylindrical portion, and the external teeth 912b are configured as an output gear (output portion). The output member 912 is biased toward the lower side (the cylindrical portion 217d side) in the motor axial direction.

  In the planetary gear mechanism 91a configured as described above, the planetary gear 812t includes a first external gear portion that meshes with the internal teeth 217e and a second external gear portion that meshes with the internal teeth 912a. While the modules are equal, the number of teeth of the internal teeth 217e is, for example, two more than the number of teeth of the internal teeth 912a. When the rotor 812 rotates, the planet carrier 812a (input element) rotates integrally with the rotor 812, so that the planetary gear 812t meshing with the internal teeth 217e and 912a revolves while rotating. Here, the internal teeth 217e are fixed elements, and the internal teeth 912a are output elements arranged so as to be rotatable around the motor axis, and the number of teeth of the internal teeth 912a and the number of teeth of the first external gear portion are determined. Rotation is performed with a corresponding reduction ratio, and the rotation output is output from the external teeth 912b formed on the output member 912. Therefore, a large torque can be obtained with the planetary gear mechanism 91a having such a structure.

  Such a configuration is also employed in the planetary gear mechanism 76b of the first transmission mechanism 76 described with reference to FIG.

(Second louver support member 22 and its surrounding structure)
FIG. 8 is an explanatory view showing a configuration around the leftmost louver support member among the three louver support members arranged in the louver device to which the present invention is applied, and FIG. 8A is the louver support member. FIG. 4 is a perspective view of the motor and its periphery, and a perspective view with the motor cover removed. 9 (a) and 9 (b) are an exploded perspective view of the louver support member located on the leftmost side of the three louver support members arranged in the louver device to which the present invention is applied, and the periphery of the louver support member. It is a perspective view.

  As shown in FIGS. 1 and 8 (a) and 8 (b), the second louver support member 22 is similar to the first louver support member 21 in that the portion from the base end side to the center portion is the second fixed body. 32 is inserted inside.

  As shown in FIGS. 8A, 8 </ b> B, and 9 </ b> A, the second fixed body 32 is also disposed so as to sandwich the second louver support member 22 from both the left and right sides, like the first fixed body 31. The first case 321 and the second case 322 are provided, and the hollow portion formed between the first case 321 and the second case 322 reaches the center from the base end side of the second louver support member 22. Is inserted. The second fixed body 32 includes a motor cover 323 on the opposite side of the second case 322 from the first case 321. The motor cover 323 and the second case 322 are fixed by screws. The second case 322 is fixed to the first case 321 with screws.

  As shown in FIG. 8B, a stator holding portion 322 a that holds the cylindrical stator 621 of the first motor 62 (stepping motor) is provided at the substantially central portion of the second case 322, as with the first fixed body 32. And the rotor 622 is disposed inside the stator 621. In addition, a hole into which a pinion of a compound gear interlocking with the rotor 622 of the first motor 62 is inserted is formed at the bottom of the stator holding portion 322a. Between the rotor 622 and the composite gear, internal teeth formed on the cylindrical portion of the composite gear, a planet carrier 622a formed inside the rotor 622, and an internal tooth 323a formed on the motor cover 323 (FIG. 9A). The planetary gear mechanism 77b (deceleration mechanism) is configured, and the rotation of the rotor 622 is decelerated by the planetary gear mechanism 77b and transmitted to the compound gear. The pinion of the compound gear protrudes through the hole formed in the second case 322 and into the space formed between the second case 322 and the first case 321, and the base end of the second louver support member 22 It meshes with an arcuate tooth portion 221 (see FIG. 9B) formed from the side to the center portion. Further, an arc portion 223 concentric with the tooth portion 221 is formed on the radially outer side with respect to the tooth portion 221 from the base end side to the center portion of the second louver support member 22. The guide mechanism 77a slides along an arcuate guide surface 322e (see FIG. 9A) formed on the inner surface of the second case 322. For this reason, when the rotation output of the first motor 62 is decelerated and the compound gear rotates, the rotation is transmitted to the tooth portion 221 of the second louver support member 22 through the pinion of the compound gear. As a result, the second louver support member 22 has a guide mechanism 77a constituted by an arc portion 223 formed on the second louver support member 22 itself and an arc-shaped guide surface 322e formed on the second case 322. 1, the tooth part 221, the arc part 223, and the arcuate guide surface 322 e rotate around the horizontal axis L 1 passing through the common center, and the retracted position shown in FIG. 1A and FIG. Reciprocates between the forward positions shown.

  As described above, in the present embodiment, the first motor 62 including the stepping motor including the stator 621 and the rotor 622 is mounted on the second fixed body 32, and is configured between the rotor 622 and the compound gear. The second louver support member 22 is fixed to the second louver support member 22 using the first motor 62 as a drive source by the planetary gear mechanism 77b, the pinion of the compound gear, and the arcuate tooth portion 221 that meshes with the pinion on the second louver support member 22 side. A first transmission mechanism 77 that drives the body 32 around the horizontal axis L1 is configured.

  As shown in FIG. 9A, the second louver support member 22 includes an arm-shaped case body 226 and an arm-shaped lid body 227, like the first louver support member 21, The case main body 226 and the lid body 227 are fixed with screws or the like to form a hollow body. However, the tip of the second louver support member 22 is not provided with a second motor or a first transmission mechanism for rotating the louver 5 around the horizontal axis L2, and the tip of the second louver support member 22 Only the support piece 923 that rotatably supports the connecting plate portion 52 of the louver 5 is formed.

(Third louver support member 23 and surrounding structure)
FIG. 10 is an explanatory view showing the configuration of the louver support member located in the center and the surrounding structure among the three louver support members arranged in the louver device to which the present invention is applied, and FIG. 10 (a) shows the louver support. It is a perspective view of a member and its circumference, and a perspective view in the state where the 2nd cover was removed. FIG. 11 is an exploded perspective view of the louver support member located in the center and the periphery thereof among the three louver support members arranged in the louver device to which the present invention is applied.

  As shown in FIGS. 1A and 1B and FIGS. 10A and 10B, the third louver support member 23 is similar to the first louver support member 21 and the second louver support member 22 in the base end. The portion from the side to the center is inserted into the third fixed body 33.

  As shown in FIGS. 10A, 10 </ b> B, and 11, the third fixed body 33 sandwiches the third louver support member 23 from both the left and right sides, like the first fixed body 31 and the second fixed body 32. The first case 331 and the second case 332 are arranged in a hollow portion formed between the first case 331 and the second case 332 from the base end side of the third louver support member 23 to the center. The reaching part is inserted.

  Here, a motor is not mounted on the third fixed body 33, and a transmission mechanism from the motor is not configured between the third fixed body 32 and the third louver support member 23. Instead, a coil spring 36 (biasing member) that biases the third louver support member 23 toward one side in the driving direction is disposed between the third fixed body 33 and the third louver support member 23. In this embodiment, an arc-shaped groove 331a centering on the horizontal axis L1 is formed on the inner surface of the first case 331, and its front end 331b is closed. On the other hand, a protrusion 23a formed on the rear end side of the third louver support member 23 is positioned at the rear end 331c of the groove 331a, and the coil spring 36 is compressed inside the groove 331a. In this state, the positions of both ends are regulated by the front end 331b (on the first case 331 side) and the projection 23a of the third louver support member 23. For this reason, the third louver support member 23 is urged rearward by the coil spring 36.

  Further, an arc portion 233 concentric with the groove 331 a is formed from the base end side to the center portion of the third louver support member 23, and the arc portion 223 is a circle formed on the inner surface of the second case 332. A guide mechanism 78a is configured by sliding along an arcuate guide surface (not shown). For this reason, as a result of the third louver support member 23 being biased rearward by the coil spring 36, the third louver support member 23 is counterclockwise CCW around the horizontal axis L1, that is, the third louver support member. The tip end portion of 23 is biased to the ascending side.

  The third louver support member 23 has an arm shape like the first louver support member 21 and the second louver support member 22, but the louver 5 is attached to the tip of the third louver support member 23. There is no motor or transmission mechanism that rotates around the horizontal axis L2, and only the support piece 933 that rotatably supports the connecting plate portion 53 of the louver 5 is formed at the tip of the third louver support member 23. ing.

(Operation)
In the louver device 1 configured as described above, when the first motors 61 and 62 (see FIGS. 3 and 8B) are operated in synchronization with each other in the state shown in FIG. As a result of being decelerated through the transmission mechanisms 76 and 77 and transmitted to the first louver support member 21 and the second louver support member 22, the first louver support member 21 and the second louver support member 22 are centered on the horizontal axis L1. Rotate clockwise to CW. As a result, the louver 5 moves from the retracted position shown in FIG. 1 (a) to the advanced position shown in FIG. 1 (b). Further, when the first motors 61 and 62 are operated in synchronization in the state shown in FIG. 1B, the rotation is decelerated via the first transmission mechanisms 76 and 77, and the first louver support member 21 and the first motor As a result of being transmitted to the two-louver support member 22, the first louver support member 21 and the second louver support member 22 rotate counterclockwise CCW around the horizontal axis L1. As a result, the louver 5 moves from the forward position shown in FIG. 2A to the backward position shown in FIG. During this operation, the third louver support member 23 follows the movement of the louver 5 and moves between the retracted position shown in FIG. 1 (a) and the advanced position shown in FIG. 1 (b). The third louver support member 23 is urged toward the retracted position shown in FIG. 1A by a built-in coil spring 36 (see FIGS. 10B and 11). This is a force in the direction of lifting the three-louver support member 23 upward. Therefore, since the driving by the first motors 61 and 62 is assisted, the load applied to the first motors 61 and 62 can be reduced. Further, rattling due to backlash of the first transmission mechanisms 76 and 77 can be prevented.

  Independently of the above operation, when the second motor 81 (see FIG. 4) is operated, the rotation is decelerated via the second transmission mechanism 91 and transmitted to the louver 5. As a result, the louver 5 Rotate about the horizontal axis L2, and its posture is switched.

  While this operation is performed, the position of the center of gravity of the first louver support member 21 in a state where the louver 5, the second motor 81, and the second transmission mechanism 91 are mounted on the first louver support member 21 is the angle of the first louver support member 21. Regardless of the position within the range, the first louver support member 21 is on the tip side from the vertical line passing through the rotation center (horizontal axis L1) when the first louver support member 21 is rotationally driven. That is, in this embodiment, since the load of the second motor 81, the second transmission mechanism 91, and the louver 5 is applied to the distal end side of the first louver support member 21, the load applied to the first louver support member 21 is large. The direction of the force applied from the first louver support member 21 toward the first transmission mechanism 76 and the first motor 61 is constant. Therefore, unnatural movement caused by backlash or the like in the first transmission mechanism 76 can be prevented. Further, the first louver support member 21 does not rattle even if an airflow hits the louver 5 by the amount of load applied to the first louver support member 21.

(Main effects of this form)
As described above, in the louver device 1 according to the present embodiment, the second motor 81 for swinging the louver 5 is mounted on the first louver support member 21 itself. Unlike the case where the driving force of the second motor is transmitted to the tip end side of the first louver support member 21 with a large number of gears, it is not necessary to arrange a large number of gears over a long distance. Therefore, according to this embodiment, the position and posture of the louver 5 can be switched with a small number of parts, and the louver device 1 can be reduced in size and cost.

  The first motors 61 and 62 are both stepping motors, and can be operated synchronously with the stepping motor. For this reason, it is not necessary to mechanically connect the three louver support members 21, 22, and 23 by the transmission shaft. Further, fixed bodies 31, 32, and 33 divided into three so as to correspond to each of the three louver support members 21, 22, and 23 are used. For this reason, when the louver device 1 is incorporated into the air conditioner main body or the like, the fixing members 31, 32, and 33 need only be independently installed in the air conditioner main body, and therefore the assembling work is easy. In addition, since it is not necessary to mechanically connect a plurality of louver support members with a transmission shaft, and because the louver device 1 is incorporated in an air conditioner main body or the like, the louver device 1 is incorporated into an air conditioner body or the like. Since it is only necessary to have a space on the front surface of the air conditioner body where the base end sides of the louver support members 21, 22, 23 can be individually inserted, it is not necessary to open a large space on the front surface of the air conditioner body. Furthermore, since it is not necessary to mechanically connect the plurality of louver support members with the transmission shaft, the space between the louver support members 21, 22, and 23 can be used effectively in the air conditioner body.

  Further, since the wiring 814 to the second motor 81 is drawn from the opening 217x through the first louver support member 21 from the distal end side of the first louver support member 21, the first louver support member 21 swings. Even so, the deformation of the wiring 814 can be minimized. Therefore, even if the second motor 81 is mounted at the tip of the first louver support member 21, disconnection of the wiring 814 can be prevented and the reliability of the louver device 1 can be improved.

  Further, since the protrusion 913 (output member) that performs rotational output to the louver 5 is disposed on the rotation center axis of the rotor 812 included in the second motor 81, the second transmission mechanism is coaxial with the second motor 81. 91 can be arranged. Therefore, the configuration on the distal end side of the first louver support member 21 can be simplified and downsized.

[Other embodiments]
In the above embodiment, the first motor and the first transmission mechanism are provided only for a part of the plurality of louver support members (the first louver support member 21 and the second louver support member). One motor and a first transmission mechanism may be provided. In the above embodiment, the second motor and the second transmission mechanism are provided only for one louver support member (first louver support member 21). However, the second motor and the second transmission mechanism are provided for two or all louver support members. Two transmission mechanisms may be provided.

  In the above embodiment, the internal gear-pinion provided with the arc-shaped tooth portions 211 and 221 is used to rotate the louver support members 21, 22, and 23 around the horizontal axis L1, but the arc-shaped cam is It may be used. Further, the displacement of the louver support members 21, 22, and 23 with respect to the fixed bodies 31, 32, and 33 may be the rotation as in the above form, but the movement may be an elliptical movement in which the rotation center moves during the rotation or a linear movement. There may be.

It is a perspective view of a louver device to which the present invention is applied. It is a perspective view which shows the structure of the louver support member located in the rightmost among the three louver support members arrange | positioned at the louver apparatus to which this invention is applied, and its periphery. It is a disassembled perspective view of the louver support member located in the rightmost side and its periphery in the louver device to which the present invention is applied. It is a disassembled perspective view of the louver support member located in the rightmost side in the louver device to which this invention is applied. It is a disassembled perspective view of the rotor etc. which were used for the motor incorporated in the front-end | tip part of the louver support member located in the rightmost side in the louver device to which this invention is applied. It is a longitudinal cross-sectional view which shows typically the structure of the planetary gear mechanism used for the louver apparatus which concerns on this invention. It is a disassembled perspective view of the planetary gear mechanism used for the louver apparatus which concerns on this invention. It is explanatory drawing which shows the structure of the louver support member periphery located in the leftmost side among the three louver support members arrange | positioned at the louver apparatus to which this invention is applied. (A), (b) is an exploded perspective view of the leftmost louver support member and its periphery among the three louver support members arranged in the louver device to which the present invention is applied, and a perspective view of the louver support member. It is. It is explanatory drawing which shows the structure of the louver support member located in the center among the three louver support members arrange | positioned at the louver apparatus to which this invention is applied, and its periphery. It is a disassembled perspective view of the louver support member located in the center, and its periphery among the three louver support members arrange | positioned at the louver apparatus to which this invention is applied.

Explanation of symbols

1 louver device 5 louver 21 first louver support member 22 second louver support member 23 third louver support member 31 first fixed body 32 second fixed body 33 third fixed bodies 61, 62 first motors 76, 77 First transmission mechanism 81 Second motor 91 Second transmission mechanism

Claims (7)

In a louver device having a fixed body, a louver support member supported by the fixed body, and a louver supported by a tip portion of the louver support member,
A first motor mounted on the fixed body;
A first transmission mechanism for displacing the louver support member relative to the fixed body using the first motor as a drive source;
A second motor mounted on the tip of the louver support member;
A second transmission mechanism for swinging the louver around an axis passing through the tip of the louver support member using the second motor as a drive source;
A louver device comprising: A plurality of the louver support members are arranged in the longitudinal direction of the louver,
A plurality of sets of the first motor and the first transmission mechanism are configured to drive at least two louver support members among the plurality of louver support members,
The louver device according to claim 1, wherein each of the plurality of first motors is a stepping motor. A plurality of the louver support members are arranged in the longitudinal direction of the louver, and the fixed body is divided so as to correspond to each of the plurality of louver support members,
The first motor and the first transmission mechanism are configured only for some louver support members among the plurality of louver support members, and between the other louver support members and the fixed body, the other The louver device according to claim 1, wherein a biasing member that biases one side of the louver support member in the driving direction is disposed. The louver support member includes a hollow structure having an opening at a base end side end,
The louver device according to claim 1, wherein the wiring member for the second motor is drawn from the opening through the louver support member from the distal end side of the louver support member. A plurality of the louver support members are arranged in the longitudinal direction of the louver,
The said 2nd motor and the said 2nd transmission mechanism are comprised only in the one part louver support member among these louver support members, The Claim 1 thru | or 4 characterized by the above-mentioned. Louver device.   The said 2nd transmission mechanism is provided with the output member which performs the rotation output to the said louver on the rotation center axis line of the rotor with which the said 2nd motor is provided, The Claim 1 thru | or 5 characterized by the above-mentioned. Louver equipment. The louver support member is driven to reciprocate within a predetermined angular range by the first motor and the first transmission mechanism,
Regardless of the position of the center of gravity of the louver support member in a state where the louver, the second motor, and the second transmission mechanism are mounted on the louver support member, the louver support member The louver device according to any one of claims 1 to 6, wherein the louver device is located on a distal end side with respect to a vertical line passing through a rotation center when being rotationally driven.

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