JP3218076U - Thin register - Google Patents

Abstract

To provide a thin register capable of improving the directivity of blowing when a back fin is swung up or down in order to change the blowing direction to the lower side or the upper side. A rear movable louver 8 having a rear fin 81 that changes a wind direction in a short direction in a ventilation path 3 upstream of a front movable louver 5 is rotatable via a support shaft 82 parallel to the longitudinal direction. Is pivotally supported. Inclined surfaces 6 a and 7 a are provided at the upper and lower portions inside the air outlet 2 a, and the upper ridge 84 extends along the longitudinal direction of the back fin 81 on the downstream edge of the back fin 81. A lower ridge 85 is provided so as to protrude from the upper surface and protrude from the lower surface of the back fin 81. [Selection] Figure 6

Description

  The present invention relates to an air blowing adjustment thin register used for an air blowing outlet of an air conditioner such as an automobile, and in particular, has a long and short air blowing outlet that is long in the longitudinal direction and short in the lateral direction, The present invention relates to a thin register capable of improving directivity.

  As a register for adjusting the air blowing of the air conditioner, the laterally movable louver and the longitudinally movable louver are arranged in the bezel or retainer forming the ventilation path so as to be perpendicular to each other, and air is supplied from the air outlet provided in the bezel. A resistor that adjusts the air blowing direction by changing the angle of each fin of the horizontally movable louver and the vertically movable louver is used for air conditioning of automobiles.

  2. Description of the Related Art In recent years, a register used for air conditioning for automobiles has an elongated air outlet that is long in the longitudinal direction and short in the lateral direction, and a small number of front movable fins of about 1 to 3 are provided inside the air outlet. In some cases, a thin register is manufactured mainly from design and design demands.

JP 2014-210502 A

  In this type of thin register, about 1 to 3 front movable fins are arranged along the longitudinal direction inside a slender air outlet, and a number of rear movable fins are arranged upstream of the front movable fins. These are pivotally supported in the short direction perpendicular to the front movable fin, and are arranged in parallel in the longitudinal direction at intervals.

  However, if the air outlet of the register has a long and narrow shape that is long in the longitudinal direction and short in the lateral direction, and the length in the lateral direction is very short and extremely thin, the air outlet is directed toward the air outlet. The air flow to be blown is compressed in the short direction and a contracted flow is likely to occur, and in particular, the phenomenon that the directivity of the wind when the rear movable fin is shaken in the longitudinal direction is likely to deteriorate due to the contracted flow occurs. It was.

  Therefore, in order to improve the deterioration of directivity caused by the contraction flow as described above in the thin register, the front movable fin is arranged in parallel to the short direction of the air outlet and the rear movable fin is parallel to the longitudinal direction. And a thin register that improves the directivity of the wind when the rear movable fin is shaken in the short direction has been developed, and is proposed in Patent Document 1.

  In this type of register, an air outlet having a shape that narrows up and down is provided on the downstream side of the air passage, and inner inclined surfaces are provided along the longitudinal direction on the inner and upper sides of the air outlet. The air outlet is formed so that the air flow in the ventilation path is bent toward the center by the upper and lower inner inclined surfaces. A front movable louver having a plurality of front fins immediately upstream of the air outlet allows the front fin to rotate via a support shaft along the short direction of the air outlet and is spaced apart in the longitudinal direction. It is installed side by side. Further, a rear movable louver having one rear fin that changes the wind direction in the short direction is pivotally supported in a ventilation path on the upstream side of the front movable louver via a support shaft along the longitudinal direction.

  In such a thin register, when the wind direction is changed to the short direction of the air outlet, the rear fin of the rear movable louver is rotated in the short direction, so that the air flow contracted by the rear fin is placed on the air outlet. Alternatively, by touching the lower inner inclined surface, the direction of the wind is changed in the short direction by bending in the direction opposite to the short direction of bending by the rear fin. When the wind direction is changed in the longitudinal direction, the plurality of front fins of the front movable louver are rotated in the longitudinal direction so as to change the wind direction in the longitudinal direction.

  However, in this type of thin register, when the rear fin of the rear movable louver is composed of a single fin and the air blowing direction is changed upward or downward, the rear fin is tilted up or down to change the air blowing direction. Since the direction is changed to the lower side or the upper side, when the rear fin is shaken up or down, the directivity of the air flow blown from the air outlet may deteriorate, and there is a need to improve the directivity of the blow. there were.

  The present invention has been made in view of the above points, and is a thin register capable of improving the directivity of blowing when the back fin is swung up or down in order to change the blowing direction to the lower side or the upper side. The purpose is to provide.

  The thin register according to the present invention is provided with an elongated air outlet that is long in the longitudinal direction and short in the lateral direction at the front of the register, and a front movable louver having a plurality of front fins is provided inside the air outlet. The front fins of the front movable louver are pivotally supported by a support shaft parallel to the short side direction and are arranged in parallel at intervals in the longitudinal direction, and in the ventilation path on the upstream side of the front movable louver, In a thin register in which a back movable louver having a back fin that changes the wind direction in the short direction is pivotally supported via a support shaft parallel to the longitudinal direction, the upper and lower portions inside the air outlet The upper ridge protrudes from the upper surface of the back fin along the longitudinal direction of the back fin, and the bottom ridge of the back fin extends along the longitudinal direction of the back fin. It protrudes from the lower surface and is provided.

  According to the thin register of the present invention, when the rear fin is tilted obliquely downward in order to change the air blowing direction to, for example, the upper side, the air flow flowing through the ventilation path is below the downstream side edge of the rear fin. When passing, the air flow is effectively pressed against the lower wall of the ventilation path by the lower ridges of the back fins and blown. For this reason, the air flow blown toward the air outlet is greatly compressed on the lower wall of the ventilation path to generate a sufficiently contracted flow, and the air flow whose flow velocity is increased by the contracted flow is It hits the inclined surface inside the outlet and blows air obliquely upward from the air outlet.

  Further, when the rear fin is tilted obliquely upward in order to change the blowing direction to the lower side, when the air flow flowing through the ventilation path passes above the downstream edge of the rear fin, The air flow is effectively pressed against the upper wall of the ventilation path by the strips and blown. For this reason, the air flow blown toward the air outlet is greatly compressed on the upper wall surface of the ventilation path to generate a sufficiently contracted flow, and the air flow whose flow velocity is increased by the reduced flow is the air outlet. It hits the inner inclined surface and is blown obliquely downward from the air outlet.

  For this reason, the air flow whose flow velocity is increased by the contracted flow is substantially concentrated, flows in the direction of the inclined surface inside the air outlet, and can be blown upward or downward with good directivity. In addition, since the upper ridge and the lower ridge are provided along the longitudinal direction at the downstream edge of the back fin, the rigidity of the back fin extending relatively long in the longitudinal direction can be improved.

  Here, it is preferable that the upper ridge and the lower ridge of the edge of the back fin have a curved surface whose cross-sectional shape is an arc shape. Thereby, while suppressing the air resistance of the airflow which flows on the surface of a back fin, the flow velocity can be increased, and the pressure loss of ventilation can be reduced.

  Here, the front surface of the air outlet may be perpendicular to the direction of the blower axis of the ventilation path, and a fixed fin may be provided along the longitudinal direction at the center of the air outlet. In addition, the air outlet may be configured to be slanted in a slant nose shape, with the upper part thereof retreating and the lower part protruding forward.

  Here, in the thin register, angled ridges having inclined surfaces on the inner and outer sides are formed on both sides in parallel to the longitudinal direction of the air outlet, and the angled ridges are formed at the top of the thin air resistor. Thus, the air passage can be narrowed to form the air outlet. According to this, when the back fin is tilted up or down, the chevron ridge can guide the air flow well with the inclined surfaces on both the inside and outside, and can blow up and down with good directivity. it can.

  Also, here, when the operation knob is swung down or up to the maximum angle, and the back fin is tilted up or down, the upstream edge of the back fin is in contact with the lower or upper wall. It is preferable to configure. According to this, when the operation knob is rotated downward or upward to the maximum angle, the upstream edge of the back fin rotates to the maximum angle in order to prevent the air flow straight through the ventilation path. It is possible to improve the directivity of blowing when operated.

  According to the thin register of the present invention, in order to change the blowing direction to the lower side or the upper side, it is possible to improve the directivity of the blowing when the back fin is shaken up or down.

It is a front view of a register showing one embodiment of the present invention. It is a left view of the register. It is a top view of the register. It is a perspective view of the register. It is VV sectional drawing of FIG. It is VI-VI sectional drawing of FIG. It is VII-VII sectional drawing of FIG. It is a disassembled perspective view of a register | resistor. It is a perspective view of an operation knob and a front fin. (A) is a VII-VII sectional view when the operation knob is swung up, and (b) is a VII-VII sectional view when the operation knob is swung down. (A) is a VI-VI cross-sectional view when the operation knob is swung up, and (b) is a VI-VI cross-sectional view when the operation knob is swung down. FIG. 5 is a VV cross-sectional view of FIG. 1 when the front fin is shaken to the right. FIG. 5 is a VV cross-sectional view of FIG. 1 when the front fin is shaken to the left. It is a perspective view of the front fin of other embodiments. It is a perspective view of the front fin of other embodiments. It is a perspective view of the front fin of other embodiments. It is sectional drawing which shows the cross section of the front fin of other embodiment. It is sectional drawing which shows the cross section of the front fin of other embodiment. It is sectional drawing which shows the cross section of the front fin of other embodiment. It is sectional drawing which shows the cross section of the front fin of other embodiment. It is sectional drawing which shows the cross section of the front fin of other embodiment. It is sectional drawing which shows the cross section of the front fin of other embodiment. It is sectional drawing which shows the cross section of the front fin of other embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 13 show an embodiment of a thin register according to the present invention. In this thin register, a bezel 2 having an air outlet 2a is attached to a front portion of a case body 1, as shown in FIG. In addition, the air outlet 2a formed on the front surface of the bezel 2 is longer in the longitudinal direction (lateral direction of the bezel 2) than in the short direction (vertical direction of the bezel 2). Formed and elongated in the lateral direction.

  As shown in FIGS. 5 to 8, the case main body 1 is formed in a thin box-shaped duct shape, in which a low-flow passage 3 is formed, and is cylindrical toward the air outlet 2 a of the bezel 2. Formed. An air inlet is formed at the end opening of the ventilation path 3 in the case body 1, and the bezel 2 is fitted to the front portion of the case body 1. In the bezel 2, an air outlet 2 a having an elongated shape in the horizontal and lateral directions is formed in order to blow out air passing through the ventilation path 3.

  As shown in FIGS. 1 and 4, the air outlet 2 a is formed in a flat and elongated slit shape, and is formed in a horizontally long rectangle that is long in the longitudinal direction (left and right direction) and short in the short direction (vertical direction). A fixed fin 2b is horizontally provided in the central longitudinal direction of the air outlet 2a, and an intermediate part of the fixed fin 2b is fixedly supported to the bezel 2 by a plurality of vertical frames 2c. The central portion of the fixed fin 2b is opened, and the operation knob 4 is disposed in the central opening portion so as to be tiltable up and down and left and right.

  Moreover, as shown in FIGS. 6 and 7, the chevron ridges 6 and 7 have the inclined surfaces 6a and 7a on the upstream side on the upper and lower wall surfaces immediately inside the air outlet 2a, and the downstream side thereof. The angled ridges 6 and 7 are provided in parallel with the longitudinal direction of the air outlet 2a. That is, the chevron ridges 6 and 7 on both upper and lower sides protrude inward so as to narrow the ventilation path 3 at the top, and form a long and narrow air outlet 2a in a slit shape.

  The upstream inclined surfaces 6a and 7a of the chevron ridges 6 and 7 are formed with their inclination directions toward the front fins 51 of the front movable louver 5, and the inclined surfaces 6a and 7a are inclined with respect to the horizontal line. The angle is set to about 45 °. Depending on the height (length in the short direction) of the air outlet 2a, it can be set to about 35 ° to 55 °.

  The chevron ridges 6 and the chevron ridges 7 are formed on the inner wall surface of the air outlet 2a as a substantially triangular projecting portion, but the front inner side of the bezel 2 is simply narrowed and only on the inner side. An inclined surface can also be provided.

  As shown in FIG. 10, the chevron ridge 6 and the chevron ridge 7 rotate the operation knob 4 downward or upward so that the downstream end of the rear fin 81 of the rear movable louver 8 is moved upward. Or when it turns to the downward direction, it acts so that the direction of the airflow which blows off from the air blower outlet 2a may be bent in the downward or upward direction contrary to it.

  That is, when the downstream end of the back fin 81 of the back movable louver 8 is directed upward (obliquely upward), the airflow flowing through the ventilation path 3 is compressed to the vicinity of the upper wall surface as shown in FIG. The flow is then reduced and further bent against the inclined surface 6a of the upper chevron 6 so as to be blown obliquely downward.

  Further, when the downstream end of the back fin 81 is directed downward (obliquely downward), the airflow flowing through the ventilation path 3 is compressed and compressed near the lower wall surface as shown in FIG. In addition, it is bent upward by hitting the inclined surface 7a of the lower chevron ridge 7, and blown obliquely upward.

  As shown in FIGS. 5 and 8, a semi-elliptical opening 87 is provided at a substantially central portion of the back fin 81, and a rod-like engaging portion 83 is horizontally installed at the front of the opening 87. In the assembled state, the bifurcated engagement portion 45 of the operation knob 4 is engaged with the rod-shaped engagement portion 83, and when the operation knob 4 is turned up and down, the movement of the tilting operation of the knob body 42 is changed to the back fin. 81. That is, as shown in FIG. 10, when the operation knob 4 is turned upward, the back fin 81 is tilted downward, and when the operation knob 4 is turned downward, the back fin 81 is moved upward. It is designed to tilt.

  Furthermore, along the longitudinal direction of the back fin 81, the upper ridge 84 protrudes from the top surface of the back fin 81 and the bottom ridge 85 is the bottom surface of the back fin 81 at the downstream edge of the back fin 81. It is provided protruding from. The upper ridge 84 and the lower ridge 85 provided at the edge of the back fin 81 are formed in a semicircular arc shape in cross section, and the surfaces of the upper ridge 84 and the lower ridge 85 are curved. . Thereby, air resistance when the airflow which flows through the surface of the back fin 81 contacts the upper protruding item | line 84 and the lower protruding item | line 85 is suppressed, and the pressure loss of ventilation is reduced.

  The back movable louver 8 installed in the back of the ventilation path 3 is composed of the one back fin 81 and the bearing portions 86 that support the support shafts 82 on both sides thereof, and the operation knob 4 is turned up and down. In accordance with the operation, the rear fin 81 is tilted downward or upward.

  As shown in FIG. 11B, the upper ridge 84 and the lower ridge 85 of the edge of the back fin 81 rotate the back fin 81 upward, and the air flow is at the downstream edge of the back fin 81. When passing through the upper side, the air flow is effectively pressed against the upper wall of the ventilation path 3 by the upper protrusions 84 of the back fin 81. Further, as shown in FIG. 11A, when the back fin 81 rotates downward and the airflow passes below the downstream edge of the back fin 81, The air flow is effectively pressed against the lower wall of the ventilation path 3.

  As a result, the air flow blown toward the air outlet 2a is greatly compressed on the upper wall or the lower wall of the ventilation path 3 to generate a sufficiently compressed flow, and the air flow rate is increased by the reduced flow. The flow hits the inclined surfaces 6a and 7a inside the air outlet 2a, and is blown from the air outlet 2a obliquely upward or downward with good directivity.

  Furthermore, when the operation knob 4 is swung down or up to the maximum angle and the back fin 81 tilts to the upper side or the lower side as shown in FIG. 11, the back fin 81 has an upstream edge portion. It is configured to contact the lower wall or the upper wall. As a result, when the operation knob 4 is rotated downward or upward to the maximum angle, the upstream edge of the back fin 81 prevents the air flow from passing straight through the ventilation path, so that the operation knob is rotated to the maximum angle. It is possible to improve the directivity of blowing when operated. Further, since the upper ridge 84 and the lower ridge 85 are provided along the longitudinal direction at the downstream edge of the back fin 81, the rigidity of the back fin 81 extending relatively long in the longitudinal direction can be improved. .

  As shown in FIGS. 4 and 5, a front movable louver 5 having a plurality of front fins 51 is disposed in the vicinity of the inside of the air outlet 2a of the bezel 2 along the longitudinal direction of the air outlet 2a. The front fin 51 of the front movable louver 5 is pivotally supported by a support shaft 52 parallel to the short direction (longitudinal direction) of the air outlet 2a, and a large number of front fins 51 are spaced apart in the longitudinal direction. They are arranged in parallel.

  As shown in FIG. 6, support shafts 52 project from the upper and lower portions of each front fin 51, and these support shafts 52 are fitted into bearing holes provided in the bearing plate 56, as shown in FIG. Each front fin 51 is pivotally supported so as to be rotatable in the left-right direction. Further, as shown in FIG. 6, the upper support shaft 52 is provided with a connecting shaft 54 via a crank portion 53, all the connecting shafts 54 are connected by one link bar 55, and all the front fins 51 are connected. It is structured to rotate in the left-right direction in synchronization (interlocking).

  An operation knob 4 is disposed at the front center of the front movable louver 5. As shown in FIGS. 9 and 10, the operation knob 4 is configured by rotatably attaching a knob body 42 in an operation knob case 41, and as shown in FIGS. 5 and 8, the front fin at the center of the front movable louver 5 is configured. Between the front fin 51 and 51 and the front fin 51, it arrange | positions so that rotation is possible.

  A knob support shaft 44 is provided in the horizontal lateral direction inside the operation knob case 41, and an opening 41 a is provided in the front portion of the operation knob case 41. As shown in FIG. 9, the knob main body 42 is inserted into the operation knob case 41 through the opening 41a, and is supported so as to be rotatable up and down about the knob support shaft 44. A bifurcated bifurcated engagement portion 45 is formed at the rear portion of the knob body 42, and a gripping portion 46 is formed at the front portion of the knob body 42. With the front movable louver 5 including the operation knob 4 assembled to the front portion of the case body 1, the bifurcated engagement portion 45 of the operation knob 4 is connected to the front edge of the back fin 81 of the back movable louver 8 as shown in FIG. 7. It engages with a rod-like engagement part 83 provided at the center of the part.

  The operation knob case 41 is provided with a case support shaft 43 projecting up and down, and the operation knob case 41 is attached to the upper and lower case support shafts 43 so as to be rotatable left and right. As shown in FIG. 8, the upper and lower case support shafts 43 are fitted into the bearing holes of the bearing plate 56 of the front movable louver 5. As shown in FIGS. 7 and 9, a connection shaft 43 b is provided on the upper portion of the operation knob case 41 via a crank portion 43 a, and the operation knob case 41 is connected so as to rotate left and right in synchronization with the front fin 51. A link bar 55 is connected to the shaft 43b. As a result, when the operation knob 4 is rotated to the left or right, the operation knob case 41 rotates about the case support shaft 43, and the rotation of the operation knob case 41 via the connecting shaft 43 b and the link bar 55 is entirely performed on the front movable louver 5. Is transmitted to the front fin 51, and the front fin 51 rotates to the left and right.

  At the time of assembling the thin register, as shown in FIG. 8, first, the support shafts 82 provided on both sides of the back fin 81 of the back movable louver 8 are rotatably inserted into the bearing portions 86 on both sides and supported. Then, the bearing portions 86 on both sides are fitted into the both side wall portions in the case body 1, and the inner movable louver 8 is assembled in the ventilation path 3. Next, as shown in FIG. 8, the front movable louver 5 is fitted in advance at a fixed position in the front portion of the case body 1 in the state where the front fin 51, the operation knob 4, the bearing plate 56, etc. are assembled and assembled. Include. At this time, the forked engagement portion 45 of the operation knob 4 engages with the rod-like engagement portion 83 of the back fin 81. Next, the bezel 2 provided with the air outlet 2a is fitted on the front portion of the case body 1 so as to be covered.

  As a result, as shown in FIG. 4, the operation knob 4 is exposed from the central portion of the air outlet 2 a, and a back movable louver 8 including a single back fin 81 is disposed in the back of the ventilation path 3. A front movable louver 5 in which a large number of front fins 51 are arranged in parallel is disposed immediately downstream of the movable louver 8, with the front fins 51 being perpendicular to the back fins 81.

  The thin register having the above-described configuration is attached so that the bezel 2 is fitted into a blower outlet of an air conditioner provided in an instrument panel or the like in an automobile interior, and a blower duct is connected to the rear portion of the case body 1. .

  When the blowing direction of the thin register is changed upward, as shown in FIG. 10A, the grip 46 of the operation knob 4 is operated upward, and the front portion of the knob body 42 is moved around the knob support shaft 44. Rotate upward. As a result, the bifurcated engagement portion 45 at the rear of the knob body 42 is rotated downward, and the downstream end portion of the rear fin 81 of the inner movable louver 8 is rotated so as to face obliquely downward. At this time, when the operation knob 4 is swung up to the maximum angle, the back fin 81 tilts to the lower limit and the upstream edge of the back fin 81 contacts the upper wall.

  As a result, the airflow flowing through the ventilation path 3 is guided by the back fin 81 and flows downward as shown in FIGS. 10A and 11A, and is below the downstream edge of the back fin 81. When passing, the air flow is pressed against the lower wall by the lower protrusion 85 of the back fin 81 and blown.

  For this reason, the airflow flowing toward the air outlet 2a is greatly compressed on the lower wall of the ventilation path 3, and a sufficiently contracted flow is generated. As a result of the contraction, the air flow strikes the inclined surface 7a of the lower chevron 7 on the inner side of the air outlet 2a in a state where the flow velocity is increased, and blows air with good directivity from the air outlet 2a toward the diagonally upward direction. Is done.

  The directivity of the air blowing upward obliquely is such that when the lower protrusion 85 is provided on the back fin 81, the air blowing angle obliquely upward is +3 degrees larger than when the lower protrusion 85 is not provided. Thus, the improvement of directivity was confirmed.

  At this time, when the direction of the front movable louver 5 is swung in the longitudinal direction (left-right direction), the contracted air flow passes between the front fins 51 of the front movable louver 5, and the front movable louver According to the direction of 5, the wind direction can be favorably changed in the longitudinal direction (left-right direction). Further, as shown in FIG. 10A, when the operation knob 4 is swung up to the maximum angle, the upstream edge of the back fin 81 abuts the upper wall, so that the upstream edge of the back fin 81 is ventilated. The air flow that passes straight through the path 3 is prevented, thereby improving the directivity of the air blow when the operation knob 4 is turned to the maximum angle.

  On the other hand, when the air blowing direction is changed downward, as shown in FIG. 10B, the grip 46 of the operation knob 4 is operated downward, and the front portion of the knob body 42 is moved around the knob support shaft 44. Turn down. Accordingly, the bifurcated engagement portion 45 at the rear portion of the knob body 42 is rotated upward, and the downstream end portion of the rear fin 81 of the inner movable louver 8 is rotated so as to face obliquely upward. At this time, when the operation knob 4 is swung down to the maximum angle, the back fin 81 tilts up to the upper limit, and the upstream edge of the back fin 81 contacts the lower wall.

  As a result, the airflow flowing through the ventilation path 3 is guided by the back fin 81 and flows upward as shown in FIGS. 10B and 11B, and passes above the downstream edge of the back fin 81. In doing so, the air flow is pressed against the upper wall by the upper ridge 84 of the back fin 81 and blown.

  For this reason, the airflow flowing toward the air outlet 2a is greatly compressed near the upper wall of the ventilation path 3, and a sufficiently contracted flow is generated. As a result of the contraction, the air flow strikes the inclined surface 6a of the upper chevron 6 on the inner side of the air outlet 2a in a state where the flow velocity is increased, and is blown with high directivity from the air outlet 2a toward the obliquely downward direction. The

  The directivity of the air flow obliquely downward is such that when the upper ridge 84 is provided on the back fin 81, the air flow angle to the oblique lower side is +3 degrees as compared to the case where the upper ridge 84 is not provided. It became large and the improvement of directivity was confirmed.

  At this time, when the direction of the front movable louver 5 is swung in the longitudinal direction (left-right direction), the contracted air flow passes between the front fins 51 of the front movable louver 5, and the front movable louver According to the direction of 5, the wind direction can be favorably changed in the longitudinal direction (left-right direction). Moreover, as shown in FIG. 10B, when the operation knob 4 is swung down to the maximum angle, the upstream edge of the back fin 81 abuts the lower wall, so that the upstream edge of the back fin 81 is Air flow straight through the ventilation path 3 is prevented, and thereby the directionality of the air blow when the operation knob 4 is turned to the maximum angle is improved.

  On the other hand, when the air blowing direction is swung left and right, as shown in FIGS. 12 and 13, the holding portion 46 on the front surface of the front movable louver 5 is held and rotated left or right. As a result, the operation knob case 41 rotates to the left or right with the upper and lower case support shafts 43 together with the knob main body 42, and the movement of the operation knob case 41 moves through the link bar 55 to all the front movable louvers 5. As shown in FIGS. 12 and 13, all the front fins 51 of the front movable louver 5 are rotated so as to face left or right, and the wind direction is changed to left or right.

  14-23 has shown the back fin of other embodiment. In addition, about the member and part similar to the back fin 81 of the said embodiment, the same code | symbol is attached | subjected to a figure and the description is abbreviate | omitted.

  The back fin 81A of FIG. 14 is provided with an upper ridge 84A projecting from the upper surface of the back fin 81A along the longitudinal direction of the back fin 81 at the downstream edge thereof, and a bottom ridge 85A is provided on the back fin 81A. It protrudes from the lower surface of and is provided. Furthermore, grooves 84a, 85a are formed in the cross-sectional direction (short direction of the back fin) at predetermined intervals in the upper ridge 84A and the lower ridge 85A. Thereby, the generation | occurrence | production of the abnormal sound by a vortex | eddy_current which the airflow which flows through the surface of the back | inner fin 81A is easy to generate | occur | produce when it hits on the upper protrusion 84A and the lower protrusion 85A is suppressed.

  The back fin 81B of FIG. 15 is provided at the position where the upper ridge 84B is retracted slightly upstream from the downstream edge thereof, and protrudes from the upper surface of the back fin 81B along the longitudinal direction of the back fin 81B. Further, the lower ridge 85B is provided at a position opposite to the upper ridge 84B so as to protrude from the lower surface of the back fin 81B.

  The back fin 81C in FIG. 16 is provided at the position where the upper ridge 84C is retracted slightly upstream from the downstream edge thereof, and protrudes from the upper surface of the back fin 81C along the longitudinal direction of the back fin 81C. In addition, the lower ridge 85C is provided at a position opposite to the upper ridge 84C so as to protrude from the lower surface of the back fin 81C. The upper ridges 84C and the lower ridges 85C are provided so as to be inclined on both sides so as to slightly recede toward the upstream side from the central opening 87 of the back fin 81C.

  The rear fin 81D of FIG. 17 has a downstream side edge portion formed so that its transverse cross section has a substantially nail head shape. Thereby, the upper ridge 84D having a substantially triangular cross section is provided to protrude from the upper surface of the back fin 81D along the longitudinal direction of the back fin 81D, and the same bottom ridge 85D is provided in the back fin 81D. It protrudes from the lower surface of and is provided.

  The downstream fin 81E in FIG. 18 has a downstream side edge formed in a substantially bowl shape in cross section. Thereby, the upper ridge 84E having a substantially triangular cross section is provided to protrude from the upper surface of the back fin 81E along the longitudinal direction of the back fin 81E, and the same bottom ridge 85E is provided in the back fin 81E. It protrudes from the lower surface of and is provided.

  The rear fin 81F in FIG. 19 has a downstream side edge portion formed in a substantially nail head shape in the cross section, and a tip portion of the nail head shape formed in a plane. Therefore, the upper ridge 84F having a substantially triangular cross section is provided to protrude from the upper surface of the back fin 81F along the longitudinal direction of the back fin 81F, and the same bottom ridge 85F is provided in the back fin 81F. It protrudes from the lower surface of and is provided.

  The rear fin 81G in FIG. 20 has a downstream edge formed in a substantially barbed shape in cross section. As a result, the upper ridge 84G having a substantially rectangular cross section is provided so as to protrude from the upper surface of the back fin 81G along the longitudinal direction of the back fin 81G, and the same bottom ridge 85G is provided in the back fin 81G. It protrudes from the lower surface of and is provided.

  The rear fin 81H in FIG. 21 has a downstream edge formed in a substantially wing nut shape in cross section. As a result, the upper ridge 84H having a substantially half wing nut shape in the cross section is provided so as to protrude from the upper surface of the back fin 81H along the longitudinal direction of the back fin 81H, and the same lower ridge 85H is provided on the back It protrudes from the lower surface of the fin 81H and is provided.

  The back fin 81I in FIG. 22 has an opening of about 120 degrees with the cross sections of the upper and lower ridges 84I and 85I provided at the downstream edge thereof facing the downstream side with the semicircular ridges on both sides. It is formed in a shape that protrudes. As a result, the upper ridge 84I having a substantially semicircular convex portion in the cross section is provided so as to protrude from the upper surface of the back fin 81I along the longitudinal direction of the back fin 81I. Projecting from the lower surface of the fin 81I is provided.

  The rear fin 81J in FIG. 23 has an opening of about 180 degrees with the cross-section of the upper ridge 84J and the lower ridge 85J provided at the downstream edge thereof facing the downstream side with the substantially circular protrusions on both sides. It is formed in a shape that protrudes. The front surface of the downstream edge is formed by a flat recess. As a result, the upper ridge 84J whose cross section is a substantially circular convex portion is provided so as to protrude from the upper surface of the back fin 81J along the longitudinal direction of the back fin 81J, and the same bottom ridge 85J is provided in the back fin. It protrudes from the lower surface of 81J and is provided.

DESCRIPTION OF SYMBOLS 1 Case main body 2 Bezel 2a Air blower outlet 2b Fixed fin 2c Vertical frame 3 Ventilation path 4 Operation knob 5 Front movable louver 6 Angle-shaped protrusion 6a Inclined surface 6b Inclined surface 7 Angle-shaped protrusion 7a Inclined surface 8 Back movable louver 41 Operation knob case 41a Opening 42 Knob body 43 Case support shaft 43a Crank portion 43b Connection shaft 44 Knob support shaft 45 Fork engagement portion 46 Grip portion 51 Front fin 52 Support shaft 53 Crank portion 54 Connection shaft 55 Link bar 56 Bearing plate 81 Back fin 82 Support shaft 83 Rod-shaped engaging portion 84 Upper convex strip 84a Groove 85 Lower convex strip 86 Bearing portion 87 Opening

Claims (5)

An elongated air outlet that is long in the longitudinal direction and short in the lateral direction is provided at the front of the register, and a front movable louver having a plurality of front fins is disposed inside the air outlet, and the front of the front movable louver The fins are pivotally supported by a support shaft parallel to the short direction and are arranged side by side in the longitudinal direction, and are arranged in the air passage on the upstream side of the front movable louver to change the wind direction in the short direction. In a thin register in which a back movable louver having a fin is pivotally supported via a support shaft parallel to the longitudinal direction,
Inclined surfaces are provided at the upper and lower portions inside the air outlet, and the upper ridge protrudes from the upper surface of the inner fin along the longitudinal direction of the inner fin at the downstream edge of the inner fin. A thin register, wherein the lower ridge protrudes from the lower surface of the inner fin.   2. The thin register according to claim 1, wherein the upper ridge and the lower ridge at the edge of the back fin have a curved surface with a circular cross section.   2. The air blower outlet according to claim 1, wherein a front surface of the air blower outlet is formed perpendicular to a direction of a blower axis of a ventilation passage, and a fixed fin is provided along a longitudinal direction at a center of the air blower outlet. Thin register.   At the top and bottom of the air outlet, ridges having inclined surfaces inside and outside are formed on both sides parallel to the longitudinal direction of the air outlet, and the ridges narrow the ventilation path at the top of the ridge. The thin register according to claim 1, wherein the thin register is configured to form an air outlet. When the operation knob is swung down or up to the maximum angle and the back fin is tilted to the upper side or the lower side, the upstream edge of the back fin contacts the lower wall or upper wall of the ventilation path. 2. The thin register according to claim 1, wherein the thin register is configured as described above.

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