JP6609150B2 - Louver device - Google Patents

Description

  The present invention relates to a louver device.

  In Patent Document 1 below, an arm (first louver support member) that supports a wind direction plate (louver 5) along an arcuate cam surface (guide surface 322e) provided in a case (second cases 312 and 322). 21, a louver device (louver device 1) is disclosed in which an arm is reciprocated between a retracted position and an advanced position by sliding a cam follower portion (arc portions 213, 223) of a second louver support member 22). ing.

JP 2009-210207 A

  In the louver device as described in Patent Document 1, it is necessary to provide the case with an opening for allowing the arm to appear and disappear. When the arm moves in the extending direction, there may be a gap that continues from the opening to the inside of the case, and foreign matter may enter through the gap.

  In view of the above problems, the problem to be solved by the present invention is to provide a louver device capable of preventing foreign matter entering from an opening from coming into contact with an internal mechanism even when an arm member is extended.

  In order to solve the above problems, a louver device according to the present invention includes a first drive source that is a drive source, a link mechanism that swings by a drive force of the first drive source, and a fixing portion that can accommodate the link mechanism. The link mechanism includes a plurality of link members and an arm member that is supported by these link members and that moves in and out from the opening of the fixed portion in the extending direction and the storing direction. A wind direction plate, which is a plate-like member, is rotatably supported at an end portion of the member in the extending direction side, and is further generated in the fixing portion when the arm member moves in the extending direction. A cover member for shielding a gap continuing from the opening to the inside of the fixed portion in the middle thereof is arranged.

  In the louver device in which the fixing part has an opening and the arm member that supports the wind direction plate protrudes and retracts from the opening, the gap that continues from the opening to the inside of the fixing part when the arm member moves in the extending direction. May occur. In the louver device in which the arm member is reciprocated by the link mechanism, the gap may be relatively large depending on the configuration of the louver device. When the louver device includes the cover member of the present invention and the cover member shields the gap in the middle of the louver device, even if the foreign material enters from the opening, the foreign material contacts the internal mechanism of the louver device. This can be prevented.

  In addition, the cover member has one end connected to the end of the arm member on the storage direction side, and the other end supported by the fixing portion, so that the fixing is performed by following the projecting operation of the arm member. It is preferable that it can be displaced within the part.

  By displacing the position and the arrangement angle of the cover member in the fixed part so as to follow the protruding and retracting operation of the arm member, the space in the fixed part can be efficiently used as the cover member arrangement space. As a result, it is possible to achieve both the placement of the cover member without expanding the space in the fixed portion and the shielding of the gap continuing from the opening portion with high accuracy.

  A second drive source that is a drive source for rotating the wind direction plate is disposed inside the arm member, and a lead wire electrically connected to the second drive source passes through the inside of the arm member. When the arm member is exposed from the end in the storage direction to the inside of the fixed portion, and the surface of the cover member in the gap that becomes the opening side is the front surface, and the back side is the back surface, the arm It is preferable that the lead wire exposed from the end of the member on the storage direction side is disposed on the back side of the cover member.

  By rotating the wind direction plate by the second drive source provided inside the arm member, more complicated operation of the wind direction plate is possible, and the degree of freedom of wind direction control can be increased. Further, by arranging the lead wire of the second drive source on the back side of the cover member through the inside of the arm member, the lead wire becomes invisible from the opening side and a human finger or the like is inserted from the opening portion. Even in this case, the finger can be prevented from touching the lead wire.

  Further, on the back surface of the cover member, a lead wire holding portion that holds the lead wire along the back surface, and a lead wire arrangement portion that is a wiring path of the lead wire guided by the lead wire holding portion, Is preferably provided.

  Since the cover member has the lead wire holding portion and the lead wire arrangement portion, the lead wire of the second drive source can be arranged in an orderly manner along the cover member. Thereby, for example, it is possible to prevent the lead wires from being scattered in the fixed portion and being bitten by a movable member such as a link mechanism.

  Moreover, it is preferable that the said lead wire holding | maintenance part is provided with the wall part surrounding at least one part of this lead wire arrangement | positioning part.

  Since at least a part of the lead wire placement portion is surrounded by the wall portion, it is possible to prevent the lead wire from dropping from the lead wire placement portion.

  Further, in the back surface of the cover member, when the direction along the wiring path of the lead wire is the length direction and the direction orthogonal to the length direction is the width direction, the lead wire holding portion is A plurality of the wall portions arranged alternately along the length direction, each of the plurality of wall portions extending from the back surface of the cover member, and the extending direction side of the side wall portion; And a bottom wall portion extending from the distal end portion to the center side in the width direction, and a base end portion that is an end portion of the side wall portion opposite to the distal end portion side is the cover member. It is preferable to be fixed to.

  Since the lead wire holding portion is composed of a plurality of wall portions arranged alternately along the length direction of the back surface of the cover member, the lead wire of the second drive source is already connected to the second drive source and the substrate. Even in the case where the lead wire is disposed, the lead wire can be inserted into the lead wire arrangement portion without removing the lead wire.

  Moreover, it is preferable that the other end side of the cover member is provided with a lead wire surrounding portion where the cover member is bent toward the back side along the wiring path of the lead wire.

  Since the cover member has the lead wire enclosing portion, even if there is a lead wire not held by the lead wire holding portion on the other end side of the cover member, the lead wire can be prevented from greatly deviating from the wiring path. it can. As a result, for example, the lead wire can be prevented from protruding beyond the cover member due to repeated displacement of the cover member.

  The fixing portion has an outlet for the lead wire, and the lead wire is fixed on the wiring path of the lead wire between the lead wire holding portion and the outlet in the fixing portion. It is preferable that a lead wire fixing portion is provided.

  Since the fixing portion has the lead wire fixing portion, the lead wire can be temporarily fixed on the wiring path of the lead wire in the fixing portion, and the slack of the lead wire from the second drive source to the lead wire fixing portion can be reduced. It becomes possible to adjust to an appropriate range. As a result, the lead wire is prevented from sagging more than necessary in the fixed portion, and for example, it is prevented from being bitten by a movable member such as a link mechanism or protruding beyond the cover member to the opening side.

  The lead wire fixing portion is formed at a portion where the surface of the fixing portion on which the lead wire fixing portion is formed is depressed in a direction perpendicular to the plane direction, and the formation position of the lead wire fixing portion is It is preferable that an inclined surface formed of a curved surface is provided between the lead wire holding portion and the arrangement position thereof.

  When the cover member repeats the displacement within the fixed portion (the arm member repeats the projecting and retracting operation), the lead wire is repeatedly deformed accordingly. Rather than bending the lead wire in a plane, it is possible to reduce fatigue of the lead wire due to the bending by extending the portion that is the starting point of the bending in a direction orthogonal to the bending direction. Since the lead wire fixing portion is formed in a portion where the surface of the fixing portion is depressed in a direction perpendicular to the planar direction, such a lead wire can be bent three-dimensionally. Furthermore, by providing an inclined surface with a curved surface between the formation position of the lead wire fixing portion and the arrangement position of the lead wire holding portion, it is possible to reduce wear of the coating due to repeated sliding of the lead wire. Can do.

  In addition, it is preferable that a hook-shaped guide portion on which the lead wire pulled out from the outlet is hooked is provided on the outer surface of the fixed portion.

  Since the guide portion is provided on the outer surface of the fixed portion, the lead wire drawn from the fixed portion can be easily handled.

  The arm member is a hollow member in which two case halves are joined by a set screw, and a rib is provided inside the arm member for sandwiching the lead wire with the inner surface of the arm member. It is preferable that a screw hole of the set screw is provided in the vicinity of the rib.

  By providing the rib for holding the lead wire inside the arm member, the lead wire can be easily routed in the arm member and the slack of the lead wire in the fixing portion can be easily adjusted. Further, since the screw hole of the set screw is provided in the vicinity of the rib, the lead wire can be prevented from biting when the arm member is assembled, and the assembly efficiency of the arm member can be improved.

  Further, the one end side of the cover member is formed by either the rotating shaft provided on the cover member or the bearing thereof and the other of the rotating shaft provided on the arm member and the bearing thereof. It is preferable that it is rotatably supported at the end of the storage direction side.

  By connecting one end side of the cover member and the end of the arm member in the storage direction side by a link comprising a rotary shaft and a bearing, the cover member can be continuously displaced from the arm member while allowing the cover member to be displaced within the fixed portion. It becomes possible to arrange in the position.

  Further, it is preferable that the other end side of the cover member is swingably supported by the fixed portion by a pin provided on the cover member and a cam groove provided on the fixed portion.

  By supporting the other end side of the cover member on the fixed portion with the pin provided on the other end side of the cover member and the cam groove of the fixed portion, the cover member can be made more flexible with respect to the swinging locus of the arm member. It is possible to follow.

  According to the louver device of the present invention, even when the arm member is extended, it is possible to prevent foreign matter that has entered from the opening from coming into contact with the internal mechanism.

It is an external appearance perspective view which shows an example of the arrangement configuration of a louver apparatus. It is a disassembled perspective view which shows the internal structure of a louver apparatus. It is a disassembled perspective view which shows the internal structure and cover part of an arm. It is a permeation | transmission figure which shows the meshing structure of a reduction gear train. It is the external appearance perspective view and sectional drawing of a 1st reduction gear. It is explanatory drawing which shows the accommodation operation | movement of the arm by a link mechanism. It is explanatory drawing which shows the extension operation | movement of the arm by a link mechanism. It is explanatory drawing which shows the structure of a 1st rocking | fluctuation control part. It is an expansion perspective view of the lead wire fixing | fixed part of an intermediate plate. It is a perspective view which shows the external appearance of the guide part of a case outer surface. It is a disassembled perspective view which shows the internal structure of a support unit. It is explanatory drawing which shows the reciprocating motion of the arm by a support unit. It is explanatory drawing which shows other embodiment of a louver apparatus.

  Hereinafter, embodiments of a louver device according to the present invention will be described with reference to the drawings. The louver device according to the present embodiment is a device that is installed at a blower opening of an air conditioner (not shown) and controls the air direction. In the following description, “width direction” means the X direction shown in the coordinate axis display of FIG. 1, “front-back direction” means the Y direction shown in the coordinate axis display, and “vertical direction” means the same coordinate axis table. Z direction shown in FIG.

(overall structure)
FIG. 1 is an external perspective view showing an example of an arrangement configuration of a louver device. In the arrangement example of FIG. 1, one common wind direction plate 91 is also referred to as two louver devices 10, 10 ′ and one support unit 70 (hereinafter collectively referred to as “louver device 10 etc.”). ). The two louver devices 10 and 10 'are the same device, and the configuration of the louver device 10 described below is also the configuration of the louver device 10'. These louver devices 10 and the like are all arranged behind the wind direction plate 91 (on the side of the air conditioner casing not shown). The louver devices 10 and 10 ′ are arranged in the vicinity of both ends in the longitudinal direction of the wind direction plate 91, and the support unit 70 is arranged at substantially the center in the longitudinal direction.

  On the surface of the wind direction plate 91 facing the louver device 10 and the like, arm connection pieces 911 and 912 that are connecting portions with the louver device 10 and the like are formed. The wind direction plate 91 is supported by the arms 42 and 72 by coupling the arm connection pieces 911 and 912 to the wind direction plate connection portions 252 and 721 provided on the arms 42 and 72 of the louver device 10 and the like. The arms 42 and 72 operate integrally.

  The louver devices 10 and 10 ′ are driving devices that open and close and rotate the wind direction plate 91 by a driving force of a driving source provided in the louver devices 10 and 10 ′. On the other hand, the support unit 70 is an auxiliary unit that supports the wind direction plate 91 following the operation of the louver devices 10, 10 ′. Even when the length of the wind direction plate 91 in the longitudinal direction is short, or when only the both ends of the wind direction plate 91 are supported by the louver devices 10 and 10 ′, the wind direction plate 91 has a rigidity that does not cause deflection due to its own weight. In some cases, the support unit 70 may be omitted.

(Internal structure of louver device)
FIG. 2 is an exploded perspective view showing the internal structure of the louver device 10 (and the louver device 10 ′). The louver device 10 includes a first motor 20 (first drive source) that is a stepping motor, a link mechanism 40 that swings by the driving force of the first motor 20, and a link mechanism 40 that decelerates the rotation of the first motor 20. And a case 50 (fixed portion) that accommodates the link mechanism 40 and the reduction gear train 30.

  The link mechanism 40 includes two link members 41, an arm 42 (arm member) supported by these link members 41 and reciprocating in an extension direction A and a storage direction B (see FIGS. 6 and 7), which will be described later. have. The link member 41 includes a drive link 411 driven by the first motor 20 and a driven link 412 that follows the operation of the drive link 411 via the arm 42. In addition to the drive link 411 and the driven link 412, the link mechanism 40 constitutes a four-bar linkage mechanism in which the case 50 is a fixed link and the arm 42 is an intermediate link.

  The case 50 includes a first case half 51 that can be disassembled in the width direction X, a second case half 52, and an intermediate plate 53. The first case half 51, the second case half 52, and the intermediate plate 53 are integrated by being connected by a set screw 59. The link mechanism 40 is disposed in a space defined by the first case half 51 and the middle plate 53, and the reduction gear train 30 is disposed in a space defined by the second case half 52 and the middle plate 53.

  Further, in the space defined by the first case half 51 and the middle plate 53 of the case 50, one end is connected to the end portion on the storage direction B side of the arm 42, and the other end side is supported by the case 50. A cover portion 43 (cover member) is disposed.

  The first motor 20 is disposed outside the bottom surface (the surface orthogonal to the width direction X) of the second case half 52 and is fixed to the second case half 52 by a set screw 29. On the bottom surface of the second case half 52, a portion corresponding to the position of the pinion gear 21 of the first motor 20 has a covered cylindrical shape protruding toward the opening side (inside the case 50) of the second case half 52. The pinion cover member 521 is provided. The pinion cover member 521 is open on the pinion gear 21 side, and the pinion gear 21 is accommodated inside the pinion cover member 521. The pinion cover member 521 is provided with a window portion 521a which is an opening partly cut away in the circumferential direction, and the pinion gear 21 housed in the pinion cover member 521 has a portion of its tooth portion. Is exposed to the inside of the second case half 52 through the window 521a.

  The reduction gear train 30 is a composite gear train that includes a large-diameter gear portion and a small-diameter gear portion, respectively. Each gear member of the reduction gear train 30 is rotatably supported by a support shaft 36 erected between the second case half 52 and the intermediate plate 53. The reduction gear train 30 sequentially transmits the rotation of the pinion gear 21 of the first motor 20 from the large diameter gear portion to the small diameter gear portion, thereby reducing the rotation of the pinion gear 21 and transmitting it to the gear portion 411c of the drive link 411. To do. By decelerating the rotation of the first motor 20 and transmitting it to the drive link 411, the arm 42 can be reciprocated using a general output motor.

  A through hole 411b penetrating in the width direction X is formed in the base end portion (base end side) of the drive link 411 constituting the link mechanism 40, and the support shaft erected in the second case half 52 By inserting 522 into the through hole 411b, the base end portion of the drive link 411 is rotatably supported by the case 50.

  In addition, a gear portion 411 c extending toward the reduction gear train 30 side is provided at the base end portion of the drive link 411. A cutout portion 533 through which the gear portion 411c is inserted is formed at a portion corresponding to the position of the gear portion 411c in the intermediate plate 53. The gear portion 411 c is inserted through the notch portion 533, thereby penetrating the intermediate plate 53 and meshing with the final gear of the reduction gear train 30. As the gear portion 411c meshes with the final gear of the reduction gear train 30, the driving force of the first motor 20 is transmitted to the drive link 411 via the reduction gear train 30 and the gear portion 411c.

  The driven link 412 of the link mechanism 40 is provided with a substantially cylindrical shaft body 412b whose axis is parallel to the width direction X at the base end portion (base end side). Bearings 513 and 523 which are circular through holes penetrating in the width direction X are formed at portions corresponding to the positions of the shaft bodies 412 b in the first case half 51 and the second case half 52. The driven link 412 is rotatably supported by the case 50 by fitting the shaft body 412b to the bearings 513 and 523.

  The “base end” of the link member 41 (drive link 411, driven link 412) in the present invention is a fixed joint, that is, fixed to a predetermined position and allowed to rotate, but in the vertical direction Z and the front-rear direction Y. The “tip” refers to a free joint, that is, an end that is allowed to rotate and swing.

  In the present embodiment, the base end portions of the drive link 411 and the driven link 412 are both supported by the case 50, but these base end portions are not necessarily supported by the case 50. For example, a member (fixed part) whose position is fixed, such as a housing of an air conditioner (not shown), can support the base end part rotatably, and is deformed by the load of the arm 42 and the wind direction plate 91 The case 50 can be substituted if it is a member having such a degree of rigidity that it does not.

(Inner structure of arm)
FIG. 3 is an exploded perspective view showing the internal structure of the arm 42 and the cover portion 43. The arm 42 includes a first arm half 421 and a second arm half 422 (two case halves) that are case bodies that can be disassembled in the width direction X. The first arm half 421 and the second arm The half bodies 422 are integrated by being joined by a set screw 429.

  A second motor 25 (second drive source), which is a stepping motor, is accommodated in an end portion of the arm 42 in the extending direction A side. The second motor 25 is a drive source that rotates the wind direction plate 91 within a predetermined angle range. A pinion gear 251 is mounted on the output shaft of the second motor 25 subjected to the D cut, and the rotation of the pinion gear 251 is decelerated and transmitted to the wind direction plate connecting portion 252 via the gear portion 252a of the wind direction plate connecting portion 252. . A circular opening portion 421a penetrating in the width direction X is formed at the end of the first arm half 421 on the extending direction A side, and the wind direction plate connecting portion 252 extends from the opening portion 421a to the outside of the arm 42. Exposed to. Thereby, the wind direction plate connection part 252 of the arm 42 and the arm connection piece 911 of the wind direction plate 91 can be coupled. By adopting a configuration in which the wind direction plate 91 is rotated by the second motor 25, a more complicated operation of the wind direction plate 91 is possible, and the degree of freedom of wind direction control is enhanced.

  In the arm 42, a portion of the arm 42 on the side of the housing direction B with respect to the housing portion of the second motor 25 is provided with a rib 423 formed in a corrugated shape therein, and the rigidity of the arm 42 is enhanced by the rib 423. Yes. A part of the rib 423 also serves as an arm-side contact portion 67 of the second swing restricting portion 65 described later.

  A rotation shaft 431 protruding in the width direction X is formed at the end of the cover 43 on the arm 42 side, and a bearing 427 is formed at the end of the arm 42 on the storage direction B side. The cover 43 is rotatably supported at the end of the arm 42 on the storage direction B side by fitting the rotation shaft 431 and the bearing 427 of the arm 42.

(Reduction gear train)
FIG. 4 is a transparent view showing the meshing structure of the reduction gear train 30. The tooth part shown by the dotted line in FIG. 4 represents the gear part on the rear side of the figure of each gear member.

  The tooth part of the pinion gear 21 exposed from the window part 521a of the pinion cover member 521 is meshed with the large-diameter gear part of the first reduction gear 31 constituting the reduction gear train 30. Thereafter, the small-diameter gear portion of the first reduction gear 31 is the large-diameter gear portion of the second reduction gear 32, the small-diameter gear portion of the second reduction gear 32 is the large-diameter gear portion of the third reduction gear 33, and the third reduction gear. The small-diameter gear portion 33 is in mesh with the large-diameter gear portion of the fourth reduction gear 34, and the small-diameter gear portion of the fourth reduction gear 34 is in mesh with the large-diameter gear portion of the fifth reduction gear 35. The small-diameter gear portion of the fifth reduction gear 35 meshes with the gear portion 411c of the drive link 411. Thereby, the rotation of the first motor 20 is decelerated and transmitted to the drive link 411.

(Torque limiter mechanism)
Among the gear members of the reduction gear train 30, the first reduction gear 31 is a torque limiter mechanism that suppresses transmission torque by consuming excess torque by idling when torque exceeding a predetermined threshold is applied. A gear member having an overload protection mechanism. As the predetermined threshold torque, an appropriate margin value is appropriately added to the upper limit value of the torque that can actually be transmitted to the first reduction gear 31 during the normal operation of the louver device 10, and a torque that can be determined to be highly likely to be abnormal. You only have to set it.

  FIG. 5 is an external perspective view of the first reduction gear 31 (FIG. 5A) and a cross-sectional view in the AA direction of the first reduction gear 31 shown in FIG. 5A (FIG. 5B). . Hereinafter, in the description of the first reduction gear 31 and the torque limiter mechanism, “upper” and “lower” refer to the upper and lower sides in FIGS. 5A and 5B, and “plan view” refers to the first reduction gear. A line-of-sight direction in which the first reduction gear 31 is looked down from above 31.

  The first reduction gear 31 is composed of an upper small-diameter gear portion 311 and a lower large-diameter gear portion 312 that are made of different members. The small-diameter gear portion 311 and the large-diameter gear portion 312 are supported by a common shaft portion 314 and can rotate independently of each other. A coil spring 313 is disposed between the small-diameter gear portion 311 and the large-diameter gear portion 312 in a state of being compressed in the vertical direction. The small-diameter gear portion 311 is moved upward by the coil spring 313, and the large-diameter gear portion 312. Is biased downward.

  The small-diameter gear portion 311 is urged upward by the coil spring 313 coming into contact with the lower surface thereof, and is moved upward by a flange portion 314a extending radially outward from the vicinity of the upper end of the shaft portion 314. It has been stopped. Moreover, as shown to Fig.5 (a), the opening part 311a of the small diameter gear part 311 upper end in which the collar part 314a is arrange | positioned is formed in planar view cross shape. Thereby, the collar part 314a and the opening part 311a are mutually engaged in the circumferential direction, and the small diameter gear part 311 and the shaft part 314 are always rotated integrally in the circumferential direction.

  The large-diameter gear portion 312 is press-fitted into the shaft portion 314, and a metal plate 315, which is an annular flat plate member, is coaxially disposed on the upper and lower surfaces thereof. The large-diameter gear portion 312 is urged downward through the metal plate 315 when the coil spring 313 contacts the metal plate 315 disposed on the upper surface side of the large-diameter gear portion 312. Further, the metal plate 315 disposed on the lower surface side of the large diameter gear portion 312 is placed on the upper surface of the enlarged diameter portion 314b formed in the vicinity of the lower end of the shaft portion 314. The downward movement of the large-diameter gear portion 312 is locked by the portion 314b. Therefore, the large-diameter gear portion 312 is pressed against the enlarged-diameter portion 314b by the urging force of the coil spring 313. As a result, the large-diameter gear portion 312 rotates around the shaft portion 314 in the circumferential direction due to the frictional resistance caused by press-fitting into the shaft portion 314 and the frictional resistance caused by being pressed against the enlarged-diameter portion 314b by the coil spring 313. To do.

  Since the first reduction gear 31 has the above-described configuration, the first reduction gear 31 and the smaller diameter gear portion 311 (and the shaft portion 314) are larger than the smaller diameter gear portion 311 within the torque range in which the shaft portion 314 and the large diameter gear portion 312 can be rotated by the frictional resistance. The diameter gear portion 312 rotates integrally in the circumferential direction, and when a torque exceeding the frictional resistance is applied, either the small diameter gear portion 311 (and the shaft portion 314) or the large diameter gear portion 312 idles.

  Since the reduction gear train 30 includes the first reduction gear 31 provided with the torque limiter mechanism, for example, during the hold of the first motor 20, the wind direction plate 91 is manually opened and closed by the user, and the reduction gear train 30 and the link mechanism. Even when an unexpected external force such as 40 is applied to the power transmission member of the first motor 20, it is possible to prevent the step-out of the first motor 20 and damage to the power transmission member. Further, for example, in the initialization operation of the first motor 20, the first motor 20 is intentionally moved toward the initial position of the drive link 411 in order to synchronize the recognition angle of the first motor 20 and the actual arrangement angle of the drive link 411. Even in the case of a step out of several steps, it is possible to reduce damage and abnormal noise of the power transmission member.

  Further, as shown in FIG. 4, the first reduction gear 31 meshes with the pinion gear 21 of the first motor 20. Naturally, the torque limiter mechanism of the present invention operates when a torque larger than the transmission torque during normal operation is applied. Therefore, if a torque limiter mechanism is provided on a gear member (for example, the fifth reduction gear 35) having a large transmission torque during normal operation, a protective effect can be obtained only when a greater external force (torque) is applied.

  On the other hand, if a gear member having a small transmission torque during normal operation (for example, the pinion gear 21 of the first motor 20) is provided with a torque limiter mechanism, the torque that causes the torque limiter mechanism to operate is the torque that causes the gear member itself to rotate. It is necessary to make it smaller than this, and the restriction in setting the operating torque becomes severe.

  From the above, by setting the torque limiter mechanism to the first reduction gear 31 having a larger transmission torque than the pinion gear 21 of the first motor 20 and having the smallest transmission torque in the reduction gear train 30, the setting of the operating torque can be achieved. A torque limiter mechanism that is relatively easy and that can operate quickly with respect to an abnormality is realized.

(Arm reciprocation)
6 and 7 are explanatory views showing the reciprocating motion of the arm 42 by the link mechanism 40. FIG. 6 shows a state where the arm 42 has moved to the limit in the storage direction B, and FIG. 7 shows a state where the arm 42 has moved to the limit in the extending direction A.

  As shown in FIGS. 2 and 6, the link mechanism 40 includes two link members 41 (a drive link 411 and a driven link 412), and is reciprocated in the extending direction A and the storage direction B supported by the link members 41. And an arm 42. A second motor 25, which is a drive source for rotating the wind direction plate 91, is disposed at the end of the arm 42 on the extending direction A side.

  The drive link 411 has a circular through-hole 411a penetrating in the width direction X at the tip. By inserting the support shaft 422a of the arm 42 into the through hole 411a, the distal end portion of the drive link 411 and the arm 42 are rotatably connected to each other. Further, as described above, the base end portion of the drive link 411 can rotate to the case 50 by inserting the support shaft 522 of the second case half 52 into the through hole 411b formed in the base end portion. It is supported by. The gear portion 411 c formed at the base end portion of the drive link 411 meshes with the fifth reduction gear 35 of the reduction gear train 30.

  The driven link 412 is arranged on the extending direction A side with respect to the drive link 411. A circular through hole 412a penetrating in the width direction X is formed at the distal end portion of the driven link 412, and the distal end portion of the driven link 412 is inserted by inserting the support shaft 422b of the arm 42 into the through hole 412a. And the arm 42 are rotatably connected to each other. Further, as described above, the base end portion of the driven link 412 is attached to the case 50 by fitting the shaft body 412b to the bearings 513 and 523 of the first case half 51 and the second case half 52. It is rotatably supported.

  In the present embodiment, when the first motor 20 is rotated in the CW direction, the drive link 411 is also rotated in the CW direction, and the arm 42 is moved in the extending direction A. When the first motor 20 is rotated in the CCW direction, the arm 42 is also CCW. The arm 42 moves in the storage direction B.

  By reciprocating the arm 42 that opens and closes the wind direction plate 91 by the link mechanism 40, the load of the wind direction plate 91 and the arm 42 can be distributed to each link member 41 (the drive link 411 and the driven link 412). As a result, it is possible to prevent the stress supporting the load from being concentrated on only a part, and the entire apparatus is downsized. Further, since the sliding portion of the link mechanism 40 is almost only the joint portion, the sliding resistance accompanying the reciprocating motion of the arm 42 is relatively small.

  Further, a stepping motor is used as the first motor 20 of the present embodiment. The stepping motor can rotate in both forward and reverse directions, and the rotation angle can be calculated from the number of steps. Therefore, it is not necessary to separately perform feedback control using a rotary encoder or the like in order to detect the arrangement angle of the drive link 411 at that time. Thereby, reduction of the number of parts in the whole apparatus and size reduction of the apparatus are achieved. This also applies to the second motor 25. The first drive source of the present invention is not necessarily a stepping motor, and other motors can be used as long as the motor can rotate in both forward and reverse directions. However, in that case, as described above, a position detecting means such as feedback control may be required separately.

  Also, ribs 511 (see FIG. 8) that support the link member 41 from the width direction X (the axial direction of the indirect portion of each link member) on the surface of the first case half 51 and the intermediate plate 53 on the link mechanism 40 side. And ribs 531 (see FIGS. 6 and 7). The rib 511 and the rib 531 are linearly extending ribs protruding toward the link mechanism 40 along the rotation trajectory of each link member 41, and each link member 41 is slidably in contact with the rib 511 and the rib 531. Yes.

  By supporting each link member 41 with a linear rib, rattling of the link mechanism 40 in the width direction X is prevented, and sliding resistance with each link member 41 is reduced.

(Cover part)
Below, the cover part 43 in this embodiment is demonstrated. The cover portion 43 is a member that shields a gap that continues to the inside of the case 50 from the opening O (see FIG. 1) that is generated when the arm 42 moves in the extending direction A.

  In the following description of the routing configuration of the cover portion 43 and the lead wire 93, the “tip” of the cover portion 43 refers to the end portion of the cover portion 43 on the connecting portion side (one end side of the cover member) with the arm 42. The “rear end” means an end portion on the opposite side (the other end side of the cover member). Further, the “surface” of the cover portion 43 is a surface on the opening portion O side of the cover portion 43 in a gap extending from the opening portion O generated when the arm 42 moves in the extending direction A to the inside of the case 50. (For example, the surface corresponding to the upper surface of the cover portion 43 in FIG. 7), and the “rear surface” refers to the rear surface. Further, the “length direction” of the cover portion 43 refers to a direction along the wiring path of the lead wire 93 in the cover portion 43 (for example, a direction corresponding to the vertical direction in the cover portion 43 of FIG. 6). Means a direction orthogonal to the length direction and parallel to the front and back surfaces of the cover portion 43.

  As shown in FIG. 3, the tip of the cover portion 43 is fitted with a bearing 427 provided at the end portion of the arm 42 in the storage direction B side of the rotating shaft 431 provided at the tip of the cover portion 43. Thus, the arm 42 is rotatably supported at the end portion on the storage direction B side. As shown in FIG. 2, a pin 432 protruding toward the intermediate plate 53 is provided on the rear end side of the cover portion 43, and the pin 432 is provided on the opposite surface of the intermediate plate 53. The groove 55 is slidably supported. As a result, the cover portion 43 swings (displaces) within the case 50 following the movement of the arm 42 protruding and retracting from the opening O of the case 50 in the extending direction A and the storing direction B.

  As shown in FIG. 6, when the arm 42 is housed in the case 50, the cover portion 43 is arranged upright on the rear portion in the case 50. When the arm 42 moves in the extending direction A, the tip of the cover portion 43 is pulled by the arm 42, and the pin 432 on the rear end side of the cover portion 43 also slides along the shape of the cam groove 55 in conjunction with the movement. As a result, the cover portion 43 moves while tilting in the extending direction A side as a whole (FIG. 7). As a result, the gap that continues from the opening O to the inside of the case 50 is shielded by the cover 43.

  The end of the cover part 43 and the end of the arm 42 on the storage direction B side are connected by a link made up of the rotary shaft 431 and the bearing 427, thereby allowing the cover part 43 to follow the reciprocating movement of the arm 42. It is possible to always arrange the portion 43 at a position continuous from the arm 42. Further, since the rear end side of the cover portion 43 is supported by the cam groove 55 of the case 50 by the pin 432 provided on the rear end side of the cover portion 43, the cover portion 43 is made to follow the swing locus of the arm 42. On the other hand, it is possible to make it follow more flexibly. Since the cover part 43 of this embodiment is provided with the above-described configuration, the cover part 43 is disposed without expanding the space in the case 50, and the gap that continues from the opening O is shielded with high accuracy. Is achieved.

  In this embodiment, a groove cam composed of the pin 432 and the cam groove 55 is employed as the displacement means on the rear end side of the cover portion 43. However, such a displacement means is not necessarily a groove cam. Depending on the outer shape of the cover part 43, the swinging locus of the link mechanism 40, the size of the housing space of the case 50, etc. It is also possible to do. Further, the rotation shaft 431 of the cover portion 43 and the bearing 427 of the arm 42 may naturally be provided on members opposite to each other.

  In the configuration in which the arm 42 is moved in and out from the opening O of the case 50 using the link mechanism 40 as in the louver device 10 of the present embodiment, the gap generated by the movement of the arm 42 in the extending direction A is relatively small. It will be big. The louver device 10 includes a cover portion 43, and the cover portion 43 shields the gap in the middle thereof, so that even if a foreign matter enters from the opening O, the foreign matter is prevented from contacting the internal mechanism of the louver device 10. Has been.

  As shown in FIGS. 6, 7, and 3, the back surface of the cover portion 43 has a plurality of hook-shaped wall portions 433 (leads) arranged alternately along the length direction of the back surface. Line holding part) is formed. These wall portions 433 surround a lead wire placement portion 435 that is a wiring path of the lead wires 93 guided by the wall portion 433, and hold the lead wires 93 in the lead wire placement portion 435.

  The wall portion 433 includes a side wall portion 433a and a bottom wall portion 433b that are integrally formed with the cover portion 43 (see FIG. 3). The side wall portion 433 a is a portion extending in the vertical direction from the back surface with the back surface of the cover portion 43 as a base end portion, and holds the lead wire 93 on the center side in the width direction of the cover portion 43. Since the wall portion 433 includes the side wall portion 433 a, the lead wire 93 is prevented from dropping outside the cover portion 43 in the width direction. The bottom wall portion 433b is a portion that extends toward the center side in the same width direction from a tip portion that is an end portion of the side wall portion 433a on the extending direction side. Since the wall portion 433 includes the bottom wall portion 433b, the relative positional relationship between the cover portion 43 and the lead wire 43 can be maintained even when the cover portion 43 is displaced in the case 50. Has been.

  The rear end of the cover member 43 and its vicinity are a curved portion 434 (lead wire enclosing portion) in which the cover member 43 is curved to the back side along the wiring path of the lead wire 93. Since the cover member 43 includes the curved portion 434, the lead wire 93 not held by the wall portion 433 is prevented from greatly deviating from its original wiring path. Thereby, for example, the lead wire 93 is prevented from protruding beyond the cover portion 43 to the opening O side by repeating the swinging of the cover portion 43.

(Lead wire configuration)
Hereinafter, with reference to FIGS. 6 and 7, a configuration for handling the lead wires 93 in the louver device 10 of the present embodiment will be described.

  The lead wire 93 electrically connected to the second motor 25 passes through the inside of the arm 42, which is a hollow member, and is exposed in the case 50 from the end of the arm 42 on the storage direction B side.

  A rib 423 that clamps the lead wire 93 between the arm 42 and the inner surface of the arm 42 is provided inside the arm 42. Further, a screw hole 428 of a set screw 429 is provided in the vicinity of the rib 423 (see FIG. 3). By providing the rib 423 that holds the lead wire 93 inside the arm 42, the lead wire 93 can be easily routed in the arm 42, and the slackness of the lead wire 93 in the arm 42 can be constant. Therefore, it is easy to adjust the slack of the lead wire 93 in the case 50 described later. Further, since the screw hole 428 of the set screw 429 is provided in the vicinity of the rib 423, the lead wire 93 is prevented from being bitten when the arm 42 is assembled, and the assembly efficiency of the arm 42 is improved.

  The lead wire 93 exposed from the end of the arm 42 on the storage direction B side is disposed on the back side of the cover portion 43. By pulling out the lead wire 93 of the second motor 25 through the inside of the arm 42 to the back side of the cover portion 43, the lead wire 93 becomes invisible from the opening portion O side, and a human finger or the like can be seen from the opening portion O, for example. Even when inserted, the finger is prevented from touching the lead wire.

  The lead wire 93 drawn out from the end of the arm 42 in the storage direction B side is inserted and held in a lead wire placement portion 435 that is a wiring path of the lead wire 93 guided by the wall portion 433 of the cover portion 43. Yes. As a result, the lead wires 93 in the case 50 are arranged in an orderly manner along the length direction of the cover portion 43, and for example, the lead wires are prevented from being scattered in the case 50 and being caught in a movable member such as the link mechanism 40. ing.

  In addition, since a plurality of wall portions 433 are alternately provided along the length direction of the cover portion 43, a continuous gap is formed in the row of the wall portions 433 along the length direction of the cover portion 43. Has been. Thereby, even when the lead wire 93 is already connected to the second motor 25 and the substrate, the lead wire 93 can be arranged in the lead wire arranging portion 435 without removing the lead wire 93. . Further, the lead wire 93 is supported without being fixed to the wall portion 433, and play is provided so that the lead wire 93 is not pulled even when the cover portion 43 swings.

  Note that the configuration of the lead wire holding portion is not limited to the wall portions 433 arranged alternately as in the present embodiment. The lead wire holding portion of the present invention may be any as long as it can form the lead wire placement portion 435 that can hold the lead wire 93 along the length direction of the cover portion 43, for example, along the length direction of the cover member 43. A configuration in which a plurality of annular holding portions are arranged, a configuration in which the cover portion 43 itself is a cylindrical body, and the like are also conceivable.

  The case 50 is provided with an outlet 54 for the lead wire 93 (see FIG. 10). A lead wire fixing portion 532 for fixing the lead wire 93 is provided on the intermediate plate 53 of the case 50 on the wiring path of the lead wire 93 between the wall portion 433 and the outlet 54.

  The lead wire 93 in the case 50 is once fixed to the lead wire fixing portion 532 on the wiring path. By fixing the lead wire 93 to the lead wire fixing portion 532, the slack of the lead wire 93 from the second motor 25 to the lead wire fixing portion 532 can be adjusted to an appropriate range. This prevents the lead wire 93 from sagging more than necessary in the case 50, for example, being caught in a movable member such as the link mechanism 40 or protruding from the cover portion 43 to the opening O side. .

  FIG. 9 is an enlarged perspective view of a portion surrounded by a broken line in FIGS. 6 and 7. FIG. 9A is an enlarged perspective view of the broken line part of FIG. 6, and FIG. 9B is an enlarged perspective view of the broken line part of FIG. In FIG. 9, the display of irrelevant members is omitted for convenience of explanation.

  As shown in FIG. 9, the lead wire fixing portion 532 is formed in a portion where the intermediate plate 53 is depressed in the direction (width direction X) perpendicular to the plane direction when viewed from the cover portion 43. An inclined surface 56 formed of a curved surface is formed between the formation position of the lead wire fixing portion 532 and the arrangement position of the wall portion 433.

  By repeating the swinging of the cover portion 43 in the case 50 (by repeating the operation of the arm 42), the lead wire 93 is repeatedly deformed accordingly. In general, rather than bending a lead wire in a plane, it is possible to reduce the fatigue of the lead wire due to bending by extending the portion that is the starting point of bending in a direction perpendicular to the bending direction and bending it three-dimensionally. . Since the lead wire fixing portion 532 is formed in a portion of the intermediate plate 53 that is depressed in a direction perpendicular to the planar direction, the lead wire 93 can be bent three-dimensionally. Further, since the inclined surface 56 formed of a curved surface is provided between the formation position of the lead wire fixing portion 532 and the arrangement position of the wall portion 433, the lead wire 93 repeatedly slides as the cover portion 43 swings. The wear of the covering of the lead wire 93 due to the movement is reduced.

  As shown in FIG. 10, a hook-shaped guide portion 524 is provided on the outer surface of the case 50 so that the lead wire 93 drawn out from the outlet 54 is hooked. Thereby, the lead wire 93 drawn out from the case 50 can be easily routed.

(Swing restriction part)
The louver device 10 is provided with a swing restricting portion that is a pair of locking portions that restrict the swingable range of the link mechanism 40 by abutting each other when the link mechanism 40 swings to a predetermined position. Yes. In the present embodiment, two types of swing restricting portions, the first swing restricting portion 60 and the second swing restricting portion 65, are provided.

  FIG. 8 is an explanatory view showing the structure of the first swing restricting portion 60. 8A shows a state where the arm 42 has moved to the limit in the storage direction B, and FIG. 8B shows a state where the arm 42 has moved to the limit in the extending direction A. In addition, the 1st case half 51 of FIG. 8 is transparently displayed by the broken line.

  The first swing restricting portion 60 includes a protrusion 61 formed on the drive link 411 and a contact portion 62 formed on the first case half 51. The protrusion 61 is a substantially rectangular tube-like engagement piece that protrudes from the drive link 411 along the width direction X (the axial direction of the indirect portion of the drive link) toward the first case half 51. The contact portion 62 is a rib-like engagement piece formed at a position where the link mechanism 40 abuts on the protrusion 61 when the link mechanism 40 swings to a predetermined position. The formation position of the contact portion 62 can be determined as appropriate according to the desired swing range of the link mechanism 40.

  When the link mechanism 40 is swung to a predetermined position, the projection 61 formed on the drive link 411 and the contact portion 62 formed on the first case half 51 are brought into contact with each other, whereby the link The swingable range of the mechanism 40 can be limited to a desired range. Further, when the arm 42 is moved to the limit in the extending direction A side (that is, when the arm 42 is moved to a position where the projecting portion 61 and the contact portion 62 contact each other), the projecting portion 61 and the contact portion 62 are interposed. By supporting the drive link 411 on the first case half 51, the load on the arm 42 and the wind direction plate 91 can be further dispersed.

  The second swing restricting portion 65 is formed from opposed surfaces 66a and 67a of the bent portion 66 of the driven link 412 bent in a substantially L shape toward the inside of the link mechanism 40 and the arm side contact portion 67 of the arm 42. (See FIG. 6 and FIG. 7). The bent portion 66 is bent at an angle with which the facing surfaces 66a and 67a abut when the arm 42 extends to a predetermined position in the extending direction A. The bending angle of the bent portion 66 can be appropriately determined according to the desired extension range of the arm 42.

  FIG. 7 shows the arm 42 moved in the extending direction A. The extension range of the arm 42 in FIG. 7 is limited by the first swing restricting portion 60, and the second swing restricting portion 65 is not acting. However, when an even greater load is applied to the arm 42 and the arm 42 bends downward, the movement of the arm 42 is limited by the contact of the facing surfaces 66a and 67a. As described above, the driven link 412 supports the arm 42 not only at its connecting portion but also at these facing surfaces 66a and 67a, so that the load of the arm 42 and the wind direction plate 91 can be further dispersed.

  In the present embodiment, the above two types of swing restricting portions are provided, but only one of these swing restricting portions may be provided.

(Support unit)
FIG. 12 is an exploded perspective view showing the internal structure of the support unit 70. FIG. 12 is an explanatory view showing the reciprocating motion of the arm 72 by the support unit 70. The support unit 70 does not include a drive source, and is an auxiliary unit that supports the wind direction plate 91 following the operation of the louver devices 10, 10 ′.

  The support unit 70 includes a case 71 including a first case half 711 and a second case half 712 that can be disassembled in the width direction X. An arm 72 and a follower link 73 are swingably supported on the case 71.

  The configuration and support structure of the driven link 73 are the same as the driven link 412 of the louver device 10. The arm 72 is not provided with a driving source corresponding to the second motor 25 of the louver device 10, and the wind direction plate 91 is rotated by the wind direction plate connecting portion 721 provided at the end portion in the extending direction A side. They are only combined as possible.

  A pin 751 protruding toward the second case half 712 along the width direction X is formed at the base end portion of the arm 72. The pin 751 is a cam follower that slides along a curved cam groove 752 provided in the second case half 712. The curved shape of the cam groove 752 is the same as the swing locus of the link mechanism 40 of the louver device 10. Thereby, the arm 72 of the support unit 70 can reciprocate on the same locus as the arm 42 of the louver device 10, 10 ′.

  The width of the support unit 70 in the width direction X is smaller than that of the louver devices 10 and 10 ′ and is configured not to block the air path of the air conditioner. In the present embodiment, the use of the support unit 70 prevents the wind direction plate 91 from being bent by its own weight or wind pressure.

(Other embodiments)
Hereinafter, a louver device 11 according to another embodiment of the present invention will be described with reference to the drawings. In the following description, components having the same or the same functions as those of the previous embodiment are denoted by the same reference numerals as those of the previous embodiment, and detailed description thereof is omitted.

  FIG. 13 is an explanatory view showing the reciprocating motion of the arm 42 in the louver device 11. 13A shows a state where the arm 42 has moved to the limit in the storage direction B, and FIG. 13B shows a state where the arm 42 has moved to the limit in the extending direction A.

  The louver device 11 is provided with a braking mechanism that brakes the arm 42 by a braking spring 95 (biasing member) that is a coil spring. The brake spring 95 in this embodiment is connected to the drive link 411 and the driven link 412, and when the arm 42 moves in the extending direction A, the driven link 412 is urged toward the storage direction B by its elastic force. Thus, the movement of the arm 42 in the extending direction A is braked.

  When the arm 42 is moved in the extending direction A, the arm 42 is urged toward the extending direction A by the load of the arm 42 and the wind direction plate 91. In particular, when the wind direction plate 91 is receiving a large amount of wind pressure, the urging force is further increased. This may impair the stability of the opening / closing operation of the wind direction plate 91, may damage the power transmission member of the first motor 20, and may cause the first motor 20 to step out. By connecting each link member 41 with a brake spring 95 and braking the movement of the arm 42 in the extending direction A with its elastic force, it is possible to prevent such a problem in advance.

  Note that the connection target of the brake spring 95 is not limited to the drive link 411 and the driven link 412, and the same effect can be obtained by connecting the case 50 and a part of the link mechanism 40.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.

  For example, in the link mechanism 40 according to the present embodiment, a four-bar linkage mechanism is employed in order to realize the reciprocating movement of the arm member by the link mechanism with a minimum number of parts. More complex operations may be possible.

10, 10 'Louver device 11 Louver device 20 according to another embodiment First motor (first drive source)
25 Second motor (second drive source)
251 Pinion gear 30 Reduction gear train 31 First reduction gear (gear member (overload protection mechanism))
40 link mechanism 41 link member 411 drive link 411c gear portion 412 driven link 42 arm (intermediate link)
427 Bearing 428 Screw hole 429 Set screw 43 Cover part (cover member)
431 Rotating shaft 432 Pin 433 Wall part (lead wire holding part)
433a Side wall portion 433b Bottom wall portion 434 Curved portion (lead wire enclosing portion)
435 Lead wire arrangement part 50 Case (fixing part)
51 First case half 511 Rib 52 Second case half 522 Support shaft 524 Guide portion 53 Middle plate 531 Rib 532 Lead wire fixing portion 54 Exit 55 Cam groove 56 Inclined surface 60 First swing restricting portion 61 Protruding portion 62 Contact portion 65 Second swing restricting portion 66 Bending portion 66a Opposing surface 67 Arm-side contact portion 67a opposing surface 70 Support unit 91 Airflow direction plate 93 Lead wire 95 Brake spring A Extension direction B Storage direction O Opening

Claims (13)

A first drive source which is a drive source;
A link mechanism that swings by the driving force of the first driving source;
A fixing portion capable of accommodating the link mechanism,
The link mechanism includes a plurality of link members, and an arm member that is supported by these link members and that moves in and out from the opening of the fixed portion in the extending direction and the storing direction,
A wind direction plate that is a plate-like member is rotatably supported at an end of the arm member on the extending direction side,
Further, a cover member is arranged in the fixing portion that shields a gap that continues when the arm member moves in the extending direction from the opening to the inside of the fixing portion. A characteristic louver device.   One end side of the cover member is connected to an end portion of the arm member on the storage direction side, and the other end side is supported by the fixing portion. The louver device according to claim 1, wherein the louver device is displaceable. A second drive source that is a drive source for rotating the wind direction plate is disposed inside the arm member,
The lead wire electrically connected to the second drive source passes through the inside of the arm member and is exposed from the end portion on the storage direction side of the arm member into the fixed portion.
The lead wire exposed from the end of the arm member on the storage direction side when the surface on the opening side of the cover member in the gap is the front surface and the back side is the back surface is the cover member The louver device according to claim 2, wherein the louver device is disposed on the back side.   The back surface of the cover member is provided with a lead wire holding portion that holds the lead wire along the back surface, and a lead wire arrangement portion that is a wiring path of the lead wire guided by the lead wire holding portion. The louver device according to claim 3, wherein the louver device is provided.   The louver device according to claim 4, wherein the lead wire holding portion includes a wall portion surrounding at least a part of the lead wire arrangement portion. In the back surface of the cover member, when the direction along the wiring path of the lead wire is the length direction, and the direction orthogonal to the length direction is the width direction,
The lead wire holding portion includes a plurality of the wall portions arranged alternately along the length direction of the back surface,
Each of the plurality of wall portions includes a side wall portion that extends from the back surface of the cover member, and a bottom wall that extends from a distal end portion that is an end portion on the extending direction side of the side wall portion to the center side in the width direction. And
The louver device according to claim 5, wherein a base end portion that is an end portion of the side wall portion opposite to the tip end portion is fixed to the cover member.   The lead wire surrounding portion in which the cover member is bent toward the back side along the wiring path of the lead wire is provided on the other end side of the cover member. The louver device according to claim 6. The fixing portion has a lead wire outlet,
The lead wire fixing portion for fixing the lead wire is provided on a wiring path of the lead wire between the lead wire holding portion and the outlet. The louver device according to any one of claims 4 to 7. The lead wire fixing portion is formed in a portion where the surface of the fixing portion on which the lead wire fixing portion is formed is depressed in a direction perpendicular to the plane direction.
The louver device according to claim 8, wherein an inclined surface having a curved surface is provided between a formation position of the lead wire fixing portion and an arrangement position of the lead wire holding portion.   10. The louver device according to claim 8, wherein a hook-shaped guide portion on which the lead wire pulled out from the outlet is hooked is provided on an outer surface of the fixing portion. The arm member is a hollow member in which two case halves are joined by a set screw,
Inside the arm member, a rib is provided for sandwiching the lead wire with the inner surface of the arm member,
The louver device according to any one of claims 3 to 10, wherein a screw hole of the set screw is provided in a vicinity of the rib.   The one end side of the cover member includes the rotation shaft provided on the cover member and one of its bearings, and the other one of the rotation shaft provided on the arm member and the bearing thereof. The louver device according to any one of claims 2 to 11, wherein the louver device is rotatably supported at an end portion on a storage direction side.   The said other end side of the said cover member is supported by the said fixed part so that rocking | fluctuation is possible by the pin provided in the said cover member, and the cam groove provided in the said fixed part. The louver device according to any one of claims 2 to 12.

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