JP5483456B2 - Air conditioning louver - Google Patents

Description

  The present invention relates to an air conditioning louver suitable for blowing conditioned air supplied from an indoor unit of an air conditioner into a living space.

  In general, an air conditioner that discharges conditioned air whose temperature is adjusted in order to improve the working environment in a living space, such as an automobile, various working machines, an airplane, etc. It has. An air-conditioning duct is connected to a discharge port from which the air-conditioning apparatus discharges conditioned air, and an air-conditioning louver for blowing the conditioned air toward the living space is provided at the front end side of the air-conditioning duct.

  The air-conditioning louver includes a louver bottom portion having an inflow port through which conditioned air flows from below to above, a cover portion attached to the upper side of the louver bottom portion and closed on the back side to define a space portion, An air outlet that opens forward to be located on the opposite side of the back surface of the cover portion and blows conditioned air into the living space, and a fin that is provided at the air outlet and variably adjusts the direction of conditioned air blowing It is generally configured (see, for example, Patent Document 1).

  Thereby, when the air conditioner is operated, the conditioned air can be supplied to the air conditioning louver through the air conditioning duct. And the conditioned air which flowed upwards from the inflow port of the louver bottom part can be made to flow out into living space from the blower outlet opened frontward in the cover part. When the conditioned air is caused to flow out from the air outlet, the direction of the conditioned air can be adjusted upward and downward by adjusting the angle of the fin provided at the air outlet.

JP-A-8-175156

  By the way, according to the above-mentioned Patent Document 1, since the fin is provided at the air outlet of the conditioned air so as to be rotatable upward and downward, a wide range from above to below can be obtained by adjusting the angle of the fin. The conditioned air can be blown out according to the target height position.

  Here, the conditioned air flowing into the cover part from the air conditioning duct through the inflow port circulates from the lower side to the upper side. Therefore, in a state where the fin is turned upward, the conditioned air flowing upward is directed to the fin. You will hit an acute angle. Therefore, the conditioned air that hits the fins can be blown out from the outlets along the fins.

  However, when the fin is turned downward, the conditioned air flowing upward hits the obtuse angle with respect to the fin. In this case, since the conditioned air hitting the fin returns to the inside of the cover portion, there is a problem that the conditioned air cannot be blown out efficiently.

  The present invention has been made in view of the above-described problems of the prior art, and an object of the present invention is to efficiently blow out conditioned air supplied from an air conditioner through an air conditioning duct from an air outlet. An object of the present invention is to provide an air conditioning louver that can improve the working environment.

  An air conditioning louver according to the present invention includes a louver bottom portion having an inflow port through which conditioned air flows from below to above, a cover portion that is attached to the upper side of the louver bottom portion and has a back surface closed to define a space portion therein. An air outlet that is provided to open forward so as to be located on the opposite side of the back surface of the cover portion, and that blows conditioned air into the living space; and a fin that is provided at the air outlet and variably adjusts the direction of the conditioned air. It consists of.

In order to solve the above-described problem, the feature of the configuration of the invention of claim 1 is that conditioned air flowing upward from the inflow port into the space is directed to the blowout port at the louver bottom. A plurality of wind direction change pieces for changing the wind direction, and each wind direction change piece is configured to stand upright from the bottom of the louver to the space in the cover portion, and each wind direction change piece is The base end side is attached to the louver bottom, the middle portion extends upward in the space, and the tip end extends obliquely toward the air outlet, preventing entry of foreign matter into the inlet of the louver bottom. The mesh portion is formed by arranging a large number of ventilation holes adjacent to each other, and each wind direction changing piece is provided around a plurality of ventilation holes among the plurality of ventilation holes. It lies in that it has.

According to the invention of claim 2, wherein each of the air deflecting piece, Ru and configured to integrally formed with the louvers bottom of a resin material Tei.

According to invention of Claim 3 , the said cover part is formed by the inner cover which defines the said space part inside, and the outer cover provided so as to cover this inner cover from the outside, The said blower outlet Is formed by overlapping the opening of the inner cover and the opening of the outer cover, and the fin is formed by sandwiching a support pin provided at a lateral position between the inner cover and the outer cover. Ru Tei and configured to mount to be rotatable parts.

According to the first aspect of the present invention, the plurality of wind direction changing pieces provided on the louver bottom portion change the wind direction of the conditioned air flowing upward from the inlet of the louver bottom into the space portion of the cover portion. Can be made to circulate toward the outlet opening forwardly in the cover part. Therefore, the conditioned air flowing toward the blowout port hits the fin at an acute angle even when the fin provided at the blowout port is directed downward. Thereby, conditioned air can be blown out into the living space from the outlet so as to follow the fins.

As a result, the conditioned air can be distributed toward the outlet by changing the wind direction by the wind direction changing piece, and can be supplied to the living space without waste regardless of the angle of the fins. Thereby, since conditioned air can be efficiently blown into the living space, the working environment in the living space can be improved.
In this case, each wind direction change piece can be formed to extend upward from the louver bottom. By installing a plurality of the wind direction changing pieces, the wind direction of the conditioned air flowing upward from the inlet of the louver bottom can be effectively changed by the plurality of wind direction changing pieces. Moreover, each wind direction change piece can be attached to a louver bottom part by the base end side. And since the intermediate part of each wind direction change piece is extended and formed in the inside of a space part, it can distribute | circulate upward, without interfering with the flow of conditioned air. Furthermore, the conditioned air that has flowed upward along the middle portion of the wind direction change piece can change the wind direction toward the outlet by the inclination of the tip side of the wind direction change piece.

Moreover , by providing a mesh portion at the inlet of the louver bottom, entry of foreign matter can be prevented. The mesh part is formed by arranging a large number of ventilation holes adjacent to each other, and each wind direction change piece can be provided around a plurality of ventilation holes among the plurality of ventilation holes.

According to invention of Claim 2 , each wind direction change piece can be integrally molded with the louver bottom part using the resin material.

According to the invention of claim 3 , by using the inner cover and the outer cover which are overlapped, and sandwiching the support pin provided at the side position of the fin, the fin is rotatably attached to the position of the outlet. Can do. In addition, by overlapping the inner cover and the outer cover, the air outlet can be formed using each opening.

It is a front view which shows the hydraulic excavator applied to embodiment of this invention. It is the cross-sectional view which looked at the structure in a cab from the arrow II-II direction in FIG. It is an external appearance perspective view which removes a cab box and shows a driver's seat, a floor member, a driver's seat, an air conditioning duct, an air conditioning louver, etc. It is an external appearance perspective view which expands and shows the air-conditioning louver by this Embodiment alone. It is sectional drawing which expands and shows the louver for an air conditioning. It is a disassembled sectional view shown in the state which decomposed | disassembled the air-conditioning louver. It is an external appearance perspective view which shows the louver bottom part integrally formed as one component, and each wind direction change piece. It is a top view of the louver bottom part and each wind direction change piece which are shown in FIG. It is a front view which expands and shows an upper stage fin single-piece | unit. It is a front view which expands and shows a middle stage fin individually. It is a front view which expands and shows a lower stage fin individually. It is a front view which expands and shows a connection lever alone. It is sectional drawing which shows the louver for an air conditioning by a reference example.

  Hereinafter, a case where the louver for air conditioning according to the embodiment of the present invention is applied to a hydraulic excavator as a construction machine will be described as an example, and will be described in detail with reference to FIGS.

  In FIG. 1, reference numeral 1 denotes a hydraulic excavator which is a typical example of a construction machine used for excavation work of earth and sand. The hydraulic excavator 1 includes a self-propelled crawler-type lower traveling body 2, a swivel mounted on the lower traveling body 2, an upper revolving body 3 that forms a vehicle body with the lower traveling body 2, and the upper The working device 4 is configured roughly on the front side of the swivel body 3 so as to be able to move up and down.

  Reference numeral 5 denotes a cab provided on the left front side of the upper swing body 3, and the cab 5 is a living space for an operator to board and perform various operations. As shown in FIG. 2, the cab 5 includes a floor member 6 and a cab box 7 which will be described later.

  Reference numeral 6 denotes a floor member constituting the floor surface of the cab 5 (see FIGS. 2 and 3). The floor member 6 is formed as a rectangular plate that is long in the front and rear directions. Further, a driver seat 8 described later is provided at a substantially central position of the floor member 6.

  Reference numeral 7 denotes a cab box that forms the cab 5 together with the floor member 6, and the cab box 7 defines a living space for the operator on the floor member 6. The cab box 7 has a front window 7A, a right window 7B, and the like for securing a field of view during work, and a door 7C that opens and closes an entrance for the operator to enter and exit.

  A driver's seat 8 is provided on the floor member 6 and is located in the cab 5, and the driver's seat 8 is seated by an operator who has boarded the living space. In addition, an air conditioner indoor unit 9 to be described later is disposed behind the driver's seat 8.

  Reference numeral 9 denotes an indoor unit of an air conditioner that is located on the floor member 6 and is located behind the driver's seat 8. The indoor unit 9 adjusts the inside of the cab 5 to a temperature environment desired by an operator by supplying cold air or hot air adjusted to a desired temperature to the living space in the cab 5 as conditioned air. The indoor unit 9 includes an electric blower fan, an evaporator that generates cold air, a heater core that generates hot air, a switching plate (none of which is shown) that switches the air direction, and the like. The indoor unit 9 is connected to an outdoor unit (not shown) of an air conditioner composed of a condenser, a compressor and the like provided on the engine side.

  An air conditioning duct 10 is provided at the right end in the cab 5, and the air conditioning duct 10 guides conditioned air supplied from the indoor unit 9 to a desired position in the living space, as shown in FIG. The air conditioning duct 10 has a base end side connected to a discharge port of the conditioned air of the indoor unit 9, and a tip end side that extends rightward of the floor member 6 to the front side and bends at the front side position and extends to the upper side (illustrated by a dotted line). ), A substantially L-shaped duct cover 10B provided so as to cover the duct main body 10A, and a foot outlet 10C provided at a foot position of the duct cover 10B. Further, an air conditioning louver 11 which will be described later is provided at the tip of the duct body 10A (the front upper portion of the duct cover 10B).

  Next, the configuration of the air conditioning louver 11 according to the present embodiment will be described with reference to FIGS.

  In FIG. 3, reference numeral 11 denotes an air conditioning louver provided at the front end of the duct body 10A of the air conditioning duct 10 (the upper part on the front side of the duct cover 10B). The air conditioning louver 11 blows out conditioned air supplied from the indoor unit 9 of the air conditioner through the air conditioning duct 10 to the living space in the cab 5. At this time, the air-conditioning louver 11 can variably adjust the blowing direction of the conditioned air to the left, right (horizontal direction), up, and down (vertical direction). Here, when the configuration of the air conditioning louver 11 is described, the left side in FIGS. 5 and 6 is described as the rear side or the back side, and the opposite side is described as the front side.

  As shown in FIGS. 4 to 6, the air conditioning louver 11 includes a louver bottom 12 to be described later connected to the tip of the duct main body 10 </ b> A of the air conditioning duct 10, and a cover attached to the upper side of the louver bottom 12. Part 18, opening 21 provided in front of cover part 18 for blowing conditioned air into the living space, and adjusting the blowing direction of conditioned air provided in outlet 21 to the upper and lower directions. The three fins 22, 23, 24 and the wind direction changing pieces 26 to 29 that change the wind direction of the conditioned air flowing into the cover portion 18 toward the air outlet 21 are roughly configured.

  Reference numeral 12 denotes a louver bottom that forms the bottom side of the air conditioning louver 11, and the louver bottom 12 constitutes a base for attaching the air conditioning louver 11 to the air conditioning duct 10. As shown in FIGS. 7 and 8, the louver bottom portion 12 includes an annular bottom plate portion 13 having a substantially D-shaped outer shape with a wide front side, and a peripheral portion protruding upward from the periphery of the bottom plate portion 13. 14, a short cylindrical fitting tube portion 15 projecting downward from the inner peripheral side of the bottom plate portion 13, and an inlet 16 formed on the inner peripheral side of the bottom plate portion 13 and the fitting tube portion 15. And a mesh portion 17 provided at the inflow port 16. The louver bottom 12 is integrally molded as a single component by, for example, injection molding using a resin material together with wind direction changing pieces 26 to 29 described later.

  Here, at the front side position of the bottom plate portion 13, a screw insertion hole 13 </ b> A through which a screw member 30 to be described later is inserted is provided so as to penetrate upward and downward. Further, an engagement groove 14A for engaging an engagement claw 20G of the outer cover 20 described later is provided on the front side of the peripheral edge portion 14, and an engagement groove 20H of the outer cover 20 is engaged on the rear side. A claw 14B is provided.

  The fitting cylinder portion 15 is rotatably fitted to the top end portion of the duct main body 10A of the air conditioning duct 10 or the upper portion of the duct cover 10B connectable to the front end portion of the duct main body 10A. The fitting cylinder portion 15 is provided with claw portions 15A at one place or a plurality of places in the circumferential direction that are secured to the air conditioning duct 10 while being fitted with the air-conditioning duct 10 while allowing the turning in the horizontal direction.

  Further, the inflow port 16 has a through hole whose axis is in the upper and lower directions, so that the conditioned air supplied through the air conditioning duct 10 passes through the inflow port 16 from the lower side to the upper side and is almost vertical. Will circulate in the direction.

  Furthermore, as shown in FIGS. 7 and 8, the mesh portion 17 provided in the inflow port 16 prevents foreign matters such as coins and paper dust from entering the duct main body 10 </ b> A of the air conditioning duct 10. . The mesh portion 17 is formed in a so-called honeycomb shape by arranging a large number of hexagonal air holes 17A adjacent to each other so as to ensure a large opening area. On the mesh portion 17, wind direction changing pieces 26 to 29 described later are erected.

  Reference numeral 18 denotes a cover portion attached to the upper side of the louver bottom portion 12. The cover portion 18 is formed in a double structure by overlapping an inner cover 19 and an outer cover 20 described later.

  First, as shown in FIG. 4 and FIG. 6, the inner cover 19 is formed in a convex spherical shape that is highest in the vicinity of the center, and the closed rear side is the back surface portion 19A, and the front side opposite to the back surface portion 19A is the front side. The slope portion 19B extends substantially linearly (planar) from the top to the bottom. Further, in the inclined surface portion 19B, for example, an approximately D-shaped opening 19C having an arc shape on the upper side and a rectangular shape on the lower side is formed. At positions corresponding to the left and right side portions of the opening 19C, the upper and lower cutout portions 20D, 20E and 20F, which will be described later, An upper presser portion 19D, an intermediate presser portion 19E, and a lower presser portion 19F are formed at intervals in the downward direction.

  Further, on the front side of the inner cover 19, a screw hole 19G is formed at a position corresponding to the screw insertion hole 13A of the bottom plate portion 13 constituting the louver bottom portion 12, and on the rear side, an engagement claw 20J of the outer cover 20 is formed. An engaging step portion 19H to be engaged is provided. Here, a space portion 19J is defined in the inner cover 19 formed in a convex spherical shape, and wind direction changing pieces 26 to 29 described later are arranged in the space portion 19J.

  The outer cover 20 is provided so as to be in close contact with the outer surface of the inner cover 19, and has a shape substantially the same as the inner cover 19 and slightly larger than the inner cover 19. That is, the rear side of the outer cover 20 is a back surface portion 20A, and the front side on the opposite side is a slope portion 20B. A substantially D-shaped opening 20C is formed in the slope portion 20B. Further, on the left and right side portions of the opening 20C, the upper notch 20D and the middle notch are provided so as to face the upper presser 19D, middle presser 19E, and lower presser 19F of the inner cover 19 described above. A portion 20E and a lower notch portion 20F are formed.

  On the other hand, the lower portion of the outer cover 20 attached to the louver bottom 12 is provided with an engaging claw 20G that is positioned on the front side thereof and engages with the engaging groove 14A of the peripheral edge 14 that constitutes the louver bottom 12. Is provided with an engaging protrusion 20H with which the engaging claw 14B of the peripheral edge portion 14 is engaged. Further, an engaging claw 20J that engages with the engaging step portion 19H of the inner cover 19 is provided above the engaging protrusion 20H.

  Reference numeral 21 denotes an air outlet that is provided to open forward so as to be located on the opposite side of the back surface of the cover portion 18. The air outlet 21 is formed as a substantially D-shaped opening having an arcuate shape on the upper side and a rectangular shape on the lower side by overlapping the opening 19C of the inner cover 19 and the opening 20C of the outer cover 20, for example. ing. And the blower outlet 21 blows off the conditioned air which flowed into the air-conditioning louver 11 from the air-conditioning duct 10 into the living space, and is different from the flow direction (substantially vertical direction) of the conditioned air through the inlet 16 of the louver bottom 12. An opening is provided in the horizontal direction (substantially horizontal direction). The blower outlet 21 is provided with fins 22, 23, and 24, which will be described later.

  Reference numeral 22 denotes an upper fin that is rotatably provided so as to close the upper portion of the air outlet 21. As shown in FIG. A support pin 22A serving as a pivotal fulcrum located in the middle portion is provided to protrude in the left and right directions. Further, an interlocking arm 22B for rotating in conjunction with a later-described middle fin 23 and lower fin 24 is provided at the tip of each support pin 22A so as to extend in the radial direction of the support pin 22A. Plate-shaped ribs 22 </ b> C are erected on the inner surface of the upper fin 22 so as to extend upward and downward. Further, the upper fins 22 are supported by the support pins 22A so that the support pins 22A can rotate between the upper presser portion 19D of the inner cover 19 and the upper cutout portion 20D of the outer cover 20, so that each support pin 22A is centered. And can be rotated.

  Reference numeral 23 denotes an intermediate fin that is rotatably provided so as to close the upper and lower intermediate portions of the outlet 21, and the intermediate fin 23 is arranged in the left and right directions disposed below the upper fin 22. It consists of a long rectangular plate. As shown in FIG. 10, the middle fin 23 is provided with a support pin 23A serving as a rotation fulcrum at the left and right edges as in the above-described upper fin 22, and each of the support pins 23A. An interlocking arm 23B is provided at the tip of the rib 23C, and a rib 23C is erected on the inner surface. Further, the intermediate fins 23 are supported by the support pins 23A so as to be rotatable between the intermediate presser portion 19E of the inner cover 19 and the intermediate notch portion 20E of the outer cover 20, whereby the support pins 23A are centered. And can be rotated.

  Reference numeral 24 denotes a lower fin that is rotatably provided so as to close the lower portion of the air outlet 21, and the lower fin 24 is a rectangle that is disposed on the lower side of the middle fin 23 and is long in the left and right directions. It consists of a plate. As shown in FIG. 11, the lower fin 24 is provided with a support pin 24A serving as a rotation fulcrum at the left and right edges as in the above-described upper fin 22, and each of the support pins 24A. An interlocking arm 24B is provided at the tip of the rib 24C, and a rib 24C is erected on the inner surface. Further, the lower fins 24 are supported by the support pins 24A so that the support pins 24A can rotate between the lower presser portion 19F of the inner cover 19 and the lower notch portion 20F of the outer cover 20, so that the support pins 24A are centered. And can be rotated.

  Reference numeral 25 denotes a connecting member (only one is shown) provided on the left and right sides of each fin 22, 23, 24. The connecting member 25 is made of a long plate as shown in FIG. Three mounting holes 25A, 25B, and 25C are formed. The interlocking arm 22B of the upper fin 22 is rotatably attached to the attachment hole 25A of the connecting member 25, and the interlocking arm 23B of the intermediate fin 23 is rotatably attached to the attachment hole 25B. The interlocking arm 24B of the lower fin 24 is rotatably attached. Thereby, each connecting member 25 can link the rotation operation (opening / closing operation) of the three fins 22, 23, 24.

  Reference numerals 26 to 29 denote a plurality of wind direction changing pieces which are characteristic portions of the present embodiment provided in the cover portion 18. As shown in FIG. 5, the wind direction changing pieces 26 to 29 change the wind direction by directing conditioned air flowing upward from the inlet 16 of the louver bottom 12 into the space 19 </ b> J toward the outlet 21. Here, a plurality of wind direction changing pieces 26 to 29 are erected in a state of extending upward from the louver bottom 12, specifically, as shown in FIGS. 7 and 8, in four rows in the front and rear directions, A total of six are provided in the order of two, one, two, and one from the front side. The number and arrangement form of the wind direction changing pieces 26 to 29 are changed depending on the size of the ventilation hole 17A of the mesh portion 17, the structure of the member to be arranged or attached, and the like, and are limited to the number, shape, and arrangement. It is not a thing.

  Of the six wind direction changing pieces 26 to 29, the two wind direction changing pieces 26 located in the foremost part (first row) are arranged at the position of the vent hole 17 </ b> A located closer to the front side of the mesh part 17. . In the wind direction changing piece 26, the lower base end portion 26A is fixed around the vent hole 17A, the intermediate portion 26B extends upward from the base end portion 26A in the space portion 19J, and the front end portion 26C is the intermediate portion 26B. It extends at an angle from the top toward the outlet 21.

  Here, the base end portion 26A and the intermediate portion 26B are formed as semi-cylindrical bodies extending upward and downward (vertical direction) so that the front side is open. Thus, the base end portion 26A and the intermediate portion 26B made of a semi-cylindrical body can be provided around the vent hole 17A of the mesh portion 17, and this harmony can be performed without disturbing the flow of conditioned air in the vent hole 17A. Air can be circulated toward the tip portion 26C.

  Further, the distal end portion 26C extends in a laterally inclined manner at an angle substantially orthogonal to the air outlet 21 (the fins 22, 23, 24 in the closed state), for example. As a result, the distal end portion 26C changes the direction (wind direction) of the conditioned air flowing upward from the vent hole 17A along the base end portion 26A and the intermediate portion 26B, and the air outlet 21 that opens the conditioned air to the front side (each It can be distributed toward the fins 22, 23, 24).

  Next, the second row of wind direction changing pieces 27 located on the rear side of the wind direction changing piece 26 has a height dimension set higher than the height dimension of the first row of wind direction changing pieces 26. It is formed in almost the same way. That is, the second row of wind direction changing pieces 27 includes a base end portion 27A, an intermediate portion 27B, and a front end portion 27C.

  The third row of wind direction changing pieces 28 located on the rear side of the wind direction changing piece 27 are substantially the same except that the height dimension is set higher than the height dimension of the second direction wind direction changing piece 27. Is formed. That is, the third row of wind direction changing pieces 28 is configured by a base end portion 28A, an intermediate portion 28B, and a tip end portion 28C.

  The last row (fourth row) of the wind direction changing pieces 29 located on the rear side of the wind direction changing piece 28 has a height dimension higher than that of the third direction of the wind direction changing pieces 28. Are formed in substantially the same manner. That is, the wind direction changing pieces 29 in the fourth row are configured by a base end portion 29A, an intermediate portion 29B, and a tip end portion 29C.

  A screw member 30 is provided over the louver bottom 12 and the cover 18. The screw member 30 is inserted into the screw insertion hole 13A of the bottom plate portion 13 constituting the louver bottom portion 12 from the lower side with the cover portion 18 attached to the upper side of the louver bottom portion 12, and the inner cover constituting the cover portion 18 By screwing into the 19 screw holes 19G, the two can be firmly coupled.

  The air-conditioning louver 11 configured in this way has the fins 22 by the tip portions 26C-29B of the wind direction changing pieces 26-29 even when the fins 22, 23, 24 of the air outlet 21 are opened downward. , 23, 24 can be applied to the inner surface of the conditioned air at an acute angle α (only the upper fins 22 are shown in order to obtain a substantially common angle between the fins 22, 23, 24). Thereby, the conditioned air that hits an acute angle with respect to the inner surfaces of the fins 22, 23, and 24 can be blown out (flowed out) as it is without flowing back into the cover portion 18.

  Moreover, since each wind direction change piece 26-29 is set so that a height dimension may become high sequentially toward the rear side from the front side, without being disturbed by the wind direction change pieces 26-28 located in the front side, Many conditioned air can be efficiently circulated toward the blower outlet 21.

  Furthermore, each wind direction change piece 26-29, the louver bottom part 12, and the mesh part 17 are integrally molded as one component. In this case, the louver bottom portion 12 is provided separately from the cover portion 18, and the wind direction changing pieces 26 to 29 are provided by rising upward from the mesh portion 17 provided at the inlet 16 of the louver bottom portion 12. Each wind direction change piece 26-29 can be formed by one shaping | molding process using a type | mold.

  The hydraulic excavator 1 according to the present embodiment has the above-described configuration, and the operation thereof will be described next.

  First, the operator can move the lower traveling body 2 forward or backward by getting on the cab 5 and operating a traveling operation lever. On the other hand, an operator in the cab 5 can operate the work device 4 and the like to perform excavation work of earth and sand by operating the left and right work levers.

  When working the hydraulic excavator 1, in order to improve the working environment of the living space in the cab 5, the air conditioner is operated to supply conditioned air to the living space. During the operation of the air conditioner, the conditioned air from the indoor unit 9 is guided to the front side of the cab 5 (residential space) through the duct body 10 </ b> A of the air conditioning duct 10 and flows into the air conditioning louver 11. The upward conditioned air that has flowed into the air conditioning louver 11 can be guided toward the air outlet 21 opened forward by the wind direction changing pieces 26 to 29 and passes through the fins 22, 23, and 24 in the living space. Can be blown out.

  At this time, the front window 7A of the cab box 7 can be fogged by rotating the air conditioning louver 11 in the horizontal direction and directing the air outlet 21 to the front side. Further, the right window 7B can be clouded by directing the outlet 21 to the rear side or the right side. Furthermore, by directing the air outlet 21 to the operator, conditioned air can be efficiently supplied to the operator. Moreover, by rotating the fins 22, 23, 24 in the upward and downward directions, it is possible to adjust the blowing direction of the conditioned air in the upward and downward directions.

  Thus, according to the present embodiment, the wind direction of the conditioned air flowing upward from the inlet 16 of the louver bottom portion 12 is changed into the cover portion 18 of the air conditioning louver 11 and opened forward to the cover portion 18. Each of the wind direction changing pieces 26 to 29 directed to the provided outlet 21 is provided. Accordingly, the conditioned air flowing toward the air outlet 21 is applied to the fins 22, 23, 24 at an acute angle even when the fins 22, 23, 24 provided at the air outlet 21 are directed downward. Therefore, conditioned air can be blown out from the outlet 21 to the living space so as to follow the fins 22, 23, and 24.

  As a result, the conditioned air supplied from the indoor unit 9 of the air conditioner through the air conditioning duct 10 can be circulated toward the outlet 21 by changing the wind direction by the wind direction changing pieces 26 to 29, and the fins 22. , 23, and 24 can be efficiently supplied to the living space. Thereby, the operator's working environment in the living space in the cab 5 can be improved.

  In addition, since the mesh portion 17 including a large number of ventilation holes 17A is provided at the inlet 16 of the louver bottom portion 12, foreign matter such as coins and paper scraps accidentally enter the cover portion 18 from the blowout port 21. Even in this case, the mesh portion 17 can prevent foreign matter from entering the duct main body 10A side of the air conditioning duct 10 and can improve reliability.

  Moreover, each of the wind direction changing pieces 26 to 29 has the lower base end portions 26A to 29A fixed to the periphery of the vent hole 17A of the mesh portion 17, and the intermediate portions 26B to 29B from the base end portion 26A into the space portion 19J. The tip portions 26C to 29C are configured to extend so as to incline from the upper portion of the intermediate portion 26B toward the air outlet 21. Further, the base end portions 26A to 29A and the intermediate portions 26B to 29B are formed as semi-cylindrical bodies extending upward and downward. Therefore, the base end portions 26A to 29A and the intermediate portions 26B to 29B can smoothly circulate the conditioned air to the distal end portions 26C to 29C without disturbing the flow of the conditioned air passing through the air holes 17A. it can. And the conditioned air which flows upward through each ventilation hole 17A can be circulated toward the blower outlet 21 by changing the wind direction by hitting the tip portions 26C to 29C. Thereby, the course of conditioned air can be changed with a simple configuration.

  In addition, the wind direction changing pieces 26 to 29 provided in four rows in the front and rear directions are set so that the height dimension sequentially increases from the front side to the rear side. Therefore, each of the wind direction changing pieces 27 to 29 can efficiently distribute a large amount of conditioned air toward the air outlet 21 without being obstructed by the wind direction changing pieces 26 to 28 located on the front side. Thereby, conditioned air can be blown out from the whole surface of the blower outlet 21, and the efficiency of air_conditionaing | cooling operation and heating operation can be improved.

  Further, by using the inner cover 19 and the outer cover 20 that are overlapped, the support pins 22A, 23A, and 24A of the fins 22, 23, and 24 are sandwiched so that the fins 22, 23, and 24 are positioned at the outlet 21. Can be pivotally mounted. Further, by overlapping the opening 19C of the inner cover 19 and the opening 20C of the outer cover 20, the air outlet 21 can be easily formed using the respective openings 19C and 20C.

  Further, since the louver bottom 12 is provided separately from the cover 18 and the wind direction changing pieces 26 to 29 are provided upright from the mesh portion 17 provided at the inlet 16 of the louver bottom 12, the molding die Each wind direction change piece 26-29 can be formed using. Thereby, the louver bottom part 12, the mesh part 17, and each wind direction change piece 26-29 can be integrally molded as one component, and reduction of manufacturing cost and improvement of assembly workability | operativity can be aimed at.

In the embodiment, a mesh portion 17 is provided at the inlet 16 of the louver bottom 12, and the wind direction changing pieces 26 to 29 are attached to the mesh portion 17, so that the wind direction changing pieces 26 to 29 are attached to the cover portion 18. The case where it was set as the structure arrange | positioned in was demonstrated as an example. However, if example embodiment, as in the reference example shown in FIG. 13, may be provided with a wind direction changing piece 41 to 44 left, an inclined plate which extends across between the right side of the inner cover 19 '. Also according to this reference example, the conditioned air flowing upward from the inlet 16 of the louver bottom 12 can be circulated toward the outlet 21 by changing the wind direction of the conditioned air as in the above-described embodiment.

  Moreover, in embodiment, the case where the cover part 18 is comprised from two members, the outer cover 20 and the inner cover 19, is illustrated. However, the present invention is not limited to this. For example, the cover portion may be composed of one member.

  Furthermore, in the embodiment, the case where the air conditioning louver 11 is disposed in the cab 5 of the hydraulic excavator 1 as a construction machine has been described as an example. However, the present invention is not limited to this, and the air-conditioning louver 11 can be widely applied to an air-conditioning louver 11 having a living space such as an automobile or an airplane and provided with an air-conditioning device.

DESCRIPTION OF SYMBOLS 5 Cab 9 Indoor unit 10 Air-conditioning duct 10A Duct main body 11 Air-conditioning louver 12 Louver bottom part 16 Inlet 17 Mesh part 17A Vent 18 Cover part 19, 19 'Inner cover 19A, 20A Rear part 19C, 20C Opening 20 Outer cover 21 Blow Outlet 22 Upper fin 23 Middle fin 24 Lower fin 26-29, 41-44 Wind direction change piece 26A-29A Base end part 26B-29B Middle part 26C-29C Tip part

Claims (3)

A louver bottom having an inflow port through which conditioned air flows from below to above, a cover attached to the upper side of the louver and closed on the back side to define a space inside, and opposite to the back of the cover In the air-conditioning louver comprising a blowout opening that is provided to be opened forward so as to be located on the side and blows conditioned air into the living space, and a fin that is provided at the blowout opening and variably adjusts the blowing direction of the conditioned air.
The louver bottom is provided with a plurality of wind direction changing pieces that change the wind direction of the conditioned air flowing upward from the inlet into the space, toward the outlet,
Each wind direction change piece is configured to stand upright in a state of extending upward from the louver bottom to the space in the cover,
And each said wind direction change piece is set as the structure where the base end side is attached to the louver bottom part, the middle part extends in the space part upside, and the tip side extends incline toward the blower outlet ,
A mesh portion for preventing intrusion of foreign substances is provided at the inlet of the bottom of the louver, and the mesh portion is formed by arranging a large number of ventilation holes adjacent to each other. An air-conditioning louver comprising a plurality of air holes around the air holes . The air conditioning louver according to claim 1, wherein each of the wind direction changing pieces is formed integrally with the louver bottom using a resin material. The cover portion is formed by an inner cover that defines the space portion therein, and an outer cover that is provided so as to cover the inner cover from the outside,
The outlet is formed by overlapping the opening of the inner cover and the opening of the outer cover,
The air conditioning louver according to claim 1 or 2 , wherein the fin is configured to be rotatably attached to the cover portion by sandwiching a support pin provided at a lateral position between the inner cover and the outer cover. .

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