JP5411551B2 - Air conditioner for vehicles - Google Patents

Description

  The present invention relates to a vehicle air conditioner mounted on an automobile or the like.

  2. Description of the Related Art Conventionally, a vehicle air conditioner has a casing that houses a heat exchanger for cooling and a heat exchanger for heating, and an air flow path in which each heat exchanger is arranged is formed in the casing. Yes. A temperature adjusting damper for adjusting the amount of air passing through each heat exchanger and a blowing direction switching damper for switching the blowing direction of conditioned air are arranged in the air flow path. Moreover, the link for driving a damper is arrange | positioned outside the casing (for example, refer patent document 1).

In Patent Document 1, a mounting hole for a link is formed through the side wall of the casing. On the other hand, the link is provided with a shaft portion that is inserted into the mounting hole. An engaging claw that engages from the inside of the casing to the peripheral edge of the mounting hole of the casing is formed on the shaft portion. Further, ribs are provided on the side wall of the casing so as to project within the rotation range of the link. When it is necessary to remove the link, such as when repairing an air conditioner, by turning the link and riding on the rib, a force is applied to the link in the direction of removing the shaft part from the mounting hole, The engaging claw can be forcibly detached from the peripheral portion of the mounting hole, and the shaft portion can be removed from the mounting hole.
JP 11-32288 A

  However, in Patent Document 1, when removing the link, the shaft portion is forcibly pulled out from the mounting hole, so that there is a possibility that the link and the casing are damaged and cannot be reused. In order to avoid this, it is conceivable to set a dedicated tool for releasing the engaging claw. However, in such a case, preparation and management of the dedicated tool are required, and the detachment workability deteriorates. .

  The present invention has been made in view of such points, and the object of the present invention is to remove the link without damaging the link or the casing without preparing a dedicated tool for removing the link. This is to improve the removal workability.

  In order to achieve the above object, in the present invention, a detaching member for removing the link from the casing is attached to the link in advance, and the link can be detached by operating the detaching member when necessary.

Specifically, in the first invention, a mounting hole for attaching a link is formed in a casing that accommodates an air conditioning device, and the link includes a fitting cylinder portion that is rotatably inserted into the attaching hole. An engagement piece that engages with the peripheral edge of the attachment hole is formed, and the engagement piece is formed on the peripheral edge of the attachment hole in a state where the fitting tube portion of the link is inserted into the attachment hole of the casing. In the vehicle air conditioner configured to engage, the engagement piece of the link is configured to be elastically deformed in a direction to be engaged with and disengaged from the peripheral portion of the mounting hole, and is fitted to the fitting tube portion of the link. A detaching member for detaching the link from the casing is inserted, and the detaching member includes a pressing portion that presses the engaging piece in a disengagement direction to detach the engaging piece from the peripheral edge of the mounting hole, and the engaging piece. Operate the pressing part to press in the release direction An operation portion, and the locking portion for locking the said link is provided, the removal member is attached said mounting and a disengaged position, the engaging piece to disengage the engaging piece of the link from the periphery of the mounting hole The urging portion includes a urging portion that is switched to an engagement position that is engaged with the peripheral portion of the hole and that urges the detaching member to be in the engaging position, and the urging portion includes the detaching member. And an elastic piece integrally formed so as to be elastically deformable .

  According to this configuration, in a state where the link is attached to the casing, the detaching member is inserted into the fitting tube portion of the link, the locking portion of the detaching member is locked to the link, and the detaching member is connected to the casing together with the link. Attached to. And when it becomes necessary to remove a link from a casing, the engagement piece of a link is pressed by the pressing part of a detaching member by the operation part of a detaching member by the operating direction of a detaching member. Thereby, the engagement piece is elastically deformed and detached from the peripheral edge portion of the attachment hole, and the link can be removed.

  As described above, the engaging piece of the link is elastically deformed by the detaching member so as to be detached from the peripheral portion of the mounting hole, so that an excessive force does not act on the link or the casing. Moreover, since the detachable member is attached to the link in advance, it can be used immediately when necessary, and management and preparation are unnecessary.

Further, since the detaching member is always in the engagement position, the engagement piece of the link is normally engaged with the peripheral portion of the attachment hole, and the engagement piece is set to the disengagement position only when necessary. It becomes possible to detach from the part.

Moreover, the operation | movement which switches a removal member from an engagement position to a disengagement position is accept | permitted by the elastic deformation of a biasing part.

  In the second invention, in the first invention, the engaging portion of the detaching member to the link is integrally formed with the pressing portion.

  According to this configuration, it is not necessary to provide a locking portion for the link separately from the pressing portion, the number of parts can be reduced, and the removing member can be made compact.

  In the third invention, in the first or second invention, the link is provided with a plurality of engagement pieces at intervals in the circumferential direction of the fitting tube portion, and the removal member has the plurality of pressing portions described above. It is set as the structure provided corresponding to the engagement piece.

  According to this structure, the link is attached to the casing in a stable state by engaging the plurality of engaging pieces with the peripheral edge of the attachment hole. On the other hand, when removing the link, these engaging pieces can be detached at a time.

  In the fourth invention, in any one of the first to third inventions, the detaching member includes a first locking portion and a second locking portion that are respectively locked from one side and the other side in the axial direction of the fitting tube portion of the link. It is set as the structure by which the latching | locking part is provided.

According to this configuration, since the detaching member is engaged from both axial sides of the fitting tube portion of the link, the detaching member can be positioned at a predetermined position .

According to a fifth aspect , in the first aspect , the link is provided with a guide portion that guides the removal member from the engagement position to the disengagement position.

  According to this configuration, the detaching member at the engagement position moves smoothly to the disengagement position.

  According to the first invention, the removing member inserted into the fitting tube portion of the link is attached to the link, and when necessary, the engaging piece of the link is elastically deformed by the removing member to be detached from the peripheral portion of the attaching hole. Therefore, the link can be removed without specially preparing a special tool for removing the link, so that the removal workability is improved and the link and the casing are not damaged and can be reused.

In addition, the detaching member is normally set as an engaging position where the engaging piece is engaged with the peripheral portion of the mounting hole, and the detaching position where the engaging piece is detached from the peripheral portion of the mounting hole only when necessary. Therefore, it is possible to prevent the link from being accidentally removed.

In addition, since the urging portion is formed of an elastic piece integrally formed on the detachable member so as to be elastically deformable, the movement of the detachable member can be allowed with a simple structure.

  According to the second invention, since the locking portion of the detaching member is integrally formed with the pressing portion, the number of parts can be reduced and the cost can be reduced, and the space required for arranging the detaching member in a compact manner can be reduced. Can be small.

  According to the third aspect, since the plurality of engagement pieces are provided on the link at intervals in the circumferential direction of the fitting cylinder portion, the link can be attached in a stable state. And at the time of a removal operation | work, a several engagement piece can be made to detach | leave from the peripheral part of an attachment hole at once by the press part of a removal member, and a link can be removed easily.

According to the fourth invention, the first and second locking portions are provided on the removing member, and these locking portions are locked from one side and the other side in the axial direction of the fitting tube portion of the link. The operability can be improved by positioning and holding the member at a predetermined position .

According to the fifth aspect , since the guide portion for guiding the detaching member from the engaging position to the detaching position is provided, the detaching member can be smoothly moved to the detaching position, and the operability can be improved.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the following description of the preferred embodiment is merely illustrative in nature, and is not intended to limit the present invention, its application, or its use.

  FIG. 1 shows a state in which a vehicle air conditioner 1 according to an embodiment of the present invention is disposed in an instrument panel 2 provided in a front part of a vehicle interior of an automobile. This automobile is a so-called right-hand drive vehicle in which a driver's seat and a passenger seat are provided on the right and left sides of the vehicle, respectively. In the description of this embodiment, for convenience of explanation, the left side in the vehicle width direction is simply referred to as “left”, and the right side in the vehicle width direction is simply referred to as “right”.

  As shown in FIG. 2, the air conditioner 1 includes a blower unit 3 that blows air for air conditioning, an air conditioner unit 4 that introduces air blown from the blower unit 3 into conditioned air, and the air conditioner unit. 4 is provided with an intermediate duct 5 for sending air-conditioning air blown from the blower unit 3.

  The air conditioning unit 4 is disposed at a substantially central portion in the left-right direction in the instrument panel 2, while the air blowing unit 3 is disposed in front of the passenger seat while being spaced apart to the left with respect to the air conditioning unit 4. .

  The blower unit 3 includes a casing 6 that is divided into two in the left-right direction at a substantially central portion in the left-right direction, and these are integrated using fasteners or the like. The upper half of the casing 6 is used as an air intake 7 for taking in air for air conditioning into the blower unit 3, while the remaining part is used for blowing air into the air conditioning unit 4. Part 8. An air flow path S extending from the air intake portion 7 to the blower portion 8 is provided in the casing 6, and air-conditioning air introduced from the air intake portion 7 flows through the air flow path S. .

  An air intake 10 for taking in air outside the passenger compartment is formed on the front side of the vehicle above the air intake portion 7, and an air intake 11 for taking in air in the passenger compartment is formed on the rear side of the vehicle. Yes. Both intakes 10 and 11 are connected to the upstream end of the air flow path S and are selectively opened and closed by an inside / outside air switching damper 9. The inside / outside air switching damper 9 is disposed in the air flow path S, and includes a rotation shaft 12 extending in the vehicle width direction and a closing portion 13 extending from the rotation shaft 12 in one radial direction. ing. The rotating shaft 12 passes through the right side wall portion of the casing 6. Inside / outside air switching motor actuator 15 and inside / outside air switching link structure 16 are disposed on the right side wall portion of casing 6.

  The motor actuator 15 is fastened and fixed to a boss (not shown) projecting from the right side wall portion of the casing 6. The inside / outside air switching link structure 16 includes a drive link 17 to which the output shaft of the motor actuator 15 is coupled, and a driven link 18 to which the rotation shaft 12 of the inside / outside air switching damper 9 is coupled. Yes. The drive link 17 and the driven link 18 are formed by molding a resin material such as polypropylene.

  When the operating force by the motor actuator 15 is transmitted to the inside / outside air switching damper 9 via the drive link 17 and the driven link 18, the inside / outside air switching damper 9 rotates around the rotation shaft 12, and the outside air intake 10. And the inside air intake 11 are closed by the inside / outside air switching damper 9 while the other is opened. That is, when the outside air intake 10 is fully opened by the inside / outside air switching damper 9, the inside air intake 10 is fully closed, and the outside air intake mode for taking in only the air outside the passenger compartment is set. On the other hand, when the outside air inlet 10 is fully closed, the inside air inlet 11 is fully opened, and the inside air circulation mode for taking in only the air in the passenger compartment is set. Note that a grid-like grill 14 is provided at the inside air inlet 11.

  On the other hand, a filter disposing portion 21 in which a filter 20 for filtering air taken in from the outside air intake port 10 or the inside air intake port 11 is disposed at the lower portion of the air intake portion 7. A centrifugal multiblade fan (air conditioning device) 23 is disposed below the filter disposing portion 21 with its rotation axis directed in the vertical direction. Further, below the fan 23, the fan is disposed. A fan drive motor 24 for driving the motor 23 is provided. In addition, the arrow in FIG. 2 has shown the flow of air.

  The left end portion of the intermediate duct 5 is fixed to the right side wall portion of the casing 6 in the air blowing portion 8, and the left end portion of the intermediate duct 5 passes through an opening (not shown) formed in the right side wall portion of the casing 6. The air flow path S in the casing 6 is in communication. The intermediate duct 5 is formed to extend obliquely downward from the left end portion toward the lower end portion of the air conditioning unit 4. The right end of the intermediate duct 5 is opened at the lower end of the casing 6 of the air conditioning unit 4 and connected to an inlet 25 (shown in phantom lines in FIG. 3) for introducing air for air conditioning into the casing 6. Yes. A control circuit 26 for controlling the rotational speed of the fan drive motor 24 is disposed on the upper wall of the intermediate duct 5.

  The casing 30 of the air conditioning unit 4 is long in the vertical direction as a whole, and is larger than the casing 6 of the blower unit 3. The casing 30 of the air conditioning unit 4 is divided into two in the left-right direction, like the casing 6 of the blower unit 3.

  An air flow path R extending upward from the introduction port 25 is provided in the casing 30. As shown in FIG. 3, the upstream side of the air flow path R is constituted by a cooling passage 33 that extends from the inlet 25 to a substantially central portion in the vertical direction of the casing 30. The air-conditioning air introduced from the introduction port 25 changes its direction upward in the cooling passage 33 and flows.

  An evaporator (air conditioning device) 34 as a cooling heat exchanger that passes and cools the air-conditioning air flowing through the cooling passage 33 crosses the cooling passage 33 in the middle in the vertical direction of the cooling passage 33. It is arranged. The evaporator 34 constitutes one element of the refrigeration cycle, and cools the air passing therethrough. Reference numeral 35 denotes a drain portion for draining condensed water dripping from the evaporator 34.

  The downstream end of the cooling passage 33 is branched into two in the vehicle longitudinal direction. A front cold air outlet 37 is formed at the downstream end of the cooling passage 33 on the front side of the vehicle, and a rear cold air outlet 38 is formed at the downstream end of the rear side of the vehicle. A central partition 40 is provided between the front side cold air outlet 37 and the rear side cold air outlet 38 to divide the inside of the casing 30 into the cooling passage 33 and the space above it.

  A heating passage 41 constituting an intermediate portion in the air flow direction of the air flow path R is connected to the front cold air outlet 37. The heating passage 41 extends obliquely upward toward the rear side of the vehicle as a whole above the central partition wall 40. In the middle of the heating passage 41, a heater core (air conditioning device) 43 as a heating heat exchanger that heats by passing the cold air flowing through the heating passage 41 is disposed across the heating passage 41. . The cooling water of the engine is constantly circulated in the heater core 43, and the air passing through the heater core 43 is heated by this cooling water.

  Above the heater core 43, there is provided an upper partition wall 45 that divides the upper half of the casing 30 into the heating passage 41 and the space above it. A hot air outlet 46 opens toward the rear of the vehicle between the rear end of the upper partition 45 and the rear end of the central partition 40.

  In addition, an air mix space 65 constituting the downstream side of the air flow path R is provided above the rear cold air outlet 38 on the vehicle rear side in the casing 30. The rear side cold air outlet 38 and the hot air outlet 46 are connected to the air mix space 65, and cold air and hot air respectively flow from the rear side cold air outlet 38 and the hot air outlet 46. . The cold air and the warm air flowing into the air mix space 65 are mixed in the air mix space 65 to become conditioned air.

  As shown in FIG. 2, a face outlet 66 connected to the air mix space 65 is formed in the upper wall portion of the casing 30 at a position substantially directly above the air mix space 65.

  The face air outlet 66 is provided with a center ventilator 81 and a side ventilator 82 (shown in FIG. 1) in which the conditioned air generated in the air mix space 65 is provided at approximately the center in the left-right direction and both left and right ends of the instrument panel 2, respectively. Are divided into a center outlet 66a and a side outlet 66b.

  The center outlet 66a is connected to the center ventilator 81 by a center face duct (not shown) provided in the instrument panel 2. The side outlet 66b is connected to the side ventilator 82 by a side face duct (not shown) that is also provided in the instrument panel 2. The conditioned air is blown out from the center ventilator 81 and the side ventilator 82 toward the upper body of the occupant.

  Above the upper partition wall 45 in the casing 30, a defroster lead-out chamber 68 that forms the downstream side of the air flow path R is provided. A first opening 69 for allowing the conditioned air generated in the air mix space 65 to flow into the defroster outlet chamber 68 is provided between the rear end of the upper partition 45 and the upper wall of the casing 30. Yes. A defroster 85 and a demister 85a (shown in FIG. 1) in which the conditioned air that has flowed into the defroster outlet chamber 68 is provided on the instrument panel 2 on the upper wall portion of the casing 30 at a position near the vehicle front side above the defroster outlet chamber 68. The defroster blower outlet 70 for making it lead to is formed.

  The defroster outlet 70 is connected to a defroster 85 and a demister 85a by a defroster duct (not shown) provided in the instrument panel 2, and conditioned air is supplied from the defroster 85 and the demister 85a to the front window glass and the side door. It blows out toward the inner surface of the wind glass.

  A foot derivation chamber 71 that forms the downstream side of the air flow path R is formed on the vehicle front side of the defroster derivation chamber 68 in the casing 30, and a wall portion between the foot derivation chamber 71 and the defroster derivation chamber 68 is formed on the wall. A second opening 72 for allowing the conditioned air in the defroster outlet chamber 68 to flow into the foot outlet chamber 71 is formed. In addition, left and right foot outlets 73 are formed in the upper part of the left and right side walls of the casing 30 to guide the conditioned air in the foot derivation chamber 71 to the feet of the passengers in the driver seat and the passenger seat, respectively. Yes. That is, the left and right foot outlets 73 are connected to left and right foot ducts (not shown) extending rearward and downward along the left and right side walls of the casing 30, respectively. Are open at the foot of each passenger in the driver's seat and passenger seat. From the openings of these foot ducts 74, the conditioned air in the foot derivation chamber 73 blows out toward the feet of each occupant.

  In the vicinity of the downstream end of the air flow path R, a first blowing direction switching damper 76 that opens and closes the center blowing portion 66a and the side blowing portion 66b simultaneously according to the blowing mode set by the occupant is provided. The first blowing direction switching damper 76 includes a rotation shaft 86 extending in the left-right direction, a plate-shaped blocking portion 87 extending in one radial direction from the rotation shaft 86, and both surfaces of the blocking portion 87. And a sealing member 88 provided respectively. The left and right end portions of the rotation shaft 86 are supported on the left and right side walls of the casing 30. As shown in FIG. 4, the left end portion of the rotation shaft 86 passes through the left side wall portion of the casing 30.

  The first blowing direction switching damper 76 rotates around the rotation shaft 86 between a position where the center blowing portion 66a and the side blowing portion 66b are fully opened and a position where the center blowing portion 66b is fully closed. As shown in FIG. 3, when the first blowing direction switching damper 76 fully opens the center blowing portion 66a and the side blowing portion 66b, the first opening 69 is fully closed, while not shown. When the first blowing direction switching damper 76 fully closes the center blowing portion 66a and the side blowing portion 66b, the first opening 69 is fully opened.

  Near the downstream end of the air flow path R, a second blowing direction switching damper 77 that opens and closes the defroster outlet 70 according to the blowing mode is provided. Similar to the first blowing direction switching damper 76, the second blowing direction switching damper 77 includes a rotation shaft 92, a closing portion 93, and a seal member 94 extending in the left-right direction. The left and right ends of the rotation shaft 92 are supported by the left and right side walls of the casing 30. As shown in FIG. 4, the left end portion of the rotation shaft 92 passes through the left side wall portion of the casing 30.

  The second blowing direction switching damper 77 rotates around the rotation shaft 92 between a position where the defroster outlet 70 is fully opened and a position where the defroster outlet 70 is fully closed. As shown in FIG. 3, when the second blowing direction switching damper 77 brings the defroster outlet 70 into a fully closed state, the second opening 72 is brought into a fully opened state, while the second blowing direction switching damper 77 is not shown. When the defroster outlet 70 is fully opened, the second opening 72 is fully closed.

  As shown in FIG. 2, a blowing direction switching motor actuator 100 and a blowing direction switching link structure 101 are disposed on the upper portion of the left side wall portion of the casing 30. The motor actuator 100 is fastened and fixed to a boss (not shown) protruding from the left side wall, and is separated from the left side wall to the left. The blow direction switching link structure 101 is disposed between the motor actuator 100 and the left side wall portion of the casing 30. In FIG. 4, the motor actuator 100 is omitted.

  As shown in FIG. 4, the link structure 101 is fixed to a drive plate 102 to which an output shaft (not shown) of the motor actuator 100 is connected and a rotation shaft 86 of the first blowing direction switching damper 76. A first driven link 103, a first drive link 104 engaged with the first driven link 103, a second driven link 105 fixed to the rotating shaft 92 of the second blowing direction switching damper 77, and a second driven link 105. And a second drive link 106 that engages with the second drive link 106.

  The drive plate 102, the first driven link 103, the first drive link 104, the second driven link 105, and the second drive link 106 are formed by molding a resin material such as polypropylene. The drive plate 102 is positioned on the leftmost side, the first drive link 104 and the second drive link 106 are positioned on the right side of the drive plate 102, and the first driven link 103 and the second driven link are positioned on the right side of the drive links 104 and 106. A link 105 is positioned.

  The drive plate 102 is formed in a substantially semi-disc shape. In the vicinity of the center portion of the drive plate 102, a connection hole 102a is formed, into which an output shaft (not shown) of the motor actuator 100 is inserted and connected together in a rotating manner. At the periphery of the drive plate 102, a first slit 102b is formed on one side in the circumferential direction, and a second slit 102c is formed on the other side in the circumferential direction. The first slit 102b and the second slit 102c are bent in the radial direction of the drive plate 102 in the middle part of each longitudinal direction.

  The first driven link 103 is formed in a substantially linear shape. A first insertion hole 103a into which the rotation shaft 86 of the first blowing direction switching damper 76 is inserted is formed at one end of the first driven link 103, and the rotation shaft 86 and the first driven link 103 are rotated. It is united. On the other end side of the first driven link 103, a slit-like first hole 103b extending in the longitudinal direction of the link 103 is formed. In addition, the 1st hole 103b may not be slit shape, for example, may be a groove | channel.

  The first drive link 104 is generally L-shaped and is attached to the side wall of the casing 30. As shown in FIGS. 5 and 6, an attachment hole 30 a for attaching the first drive link 104 is formed in the side wall portion of the casing 30. A cylindrical portion 30b that protrudes outward from the casing 30 is formed at the peripheral edge of the mounting hole 30a. A first annular portion 30c that protrudes inward of the cylindrical portion 30b and extends in an annular shape is formed on the inner peripheral surface of the cylindrical portion 30b. A second annular portion 30d that protrudes inward of the casing 30 and extends in an annular shape is formed at the inner edge of the first annular portion 30c. The inner peripheral surface of the second annular portion 30 d is configured by a tapered surface whose diameter decreases as it goes inward of the casing 30.

  As shown in FIGS. 5 and 7, an intermediate portion of the first drive link 104 is formed with a fitting cylinder portion 104 a made of a cylinder inserted into the cylinder portion 30 b of the casing 30. Although the details will be described later, a detaching member 120 used when detaching the first drive link 104 is accommodated in the fitting cylinder portion 104a.

  The fitting cylinder part 104a protrudes from the right side surface (surface on the casing 30 side) of the first drive link 104, and the outer diameter thereof is set slightly smaller than the inner diameter of the mounting hole 30a. Therefore, the fitting cylinder part 104a can be rotated around the axis of the cylindrical part 30b while being inserted into the mounting hole 30a. A stepped portion 104e is formed over the entire circumference on the proximal end side of the outer peripheral surface of the fitting cylinder portion 104a. The tip end portion of the cylindrical portion 30b of the casing 30 is fitted into the stepped portion 104e.

  Further, a protrusion 104 d is formed on the left side surface of the intermediate portion of the first drive link 104. The protruding portion 104d has an annular shape that is located concentrically with the axis of the fitting cylinder portion 104a. The inner diameter of the protrusion 104d is set larger than the inner diameter of the fitting cylinder 104a.

  An end wall portion 104f extending in a direction orthogonal to the axis of the fitting cylinder portion 104a is formed at the tip of the fitting cylinder portion 104a of the first drive link 104. As shown in FIG. 7, three through holes 104g, 104g, and 104g are formed in the end wall portion 104a. These through-holes 104g are arranged at equal intervals in the circumferential direction of the fitting cylinder portion 104a, and are configured by slits that are curved so as to extend along the inner peripheral surface of the fitting cylinder portion 104a. An engagement piece 104h that engages with the peripheral edge of the mounting hole 30a of the casing 30, as shown in FIG. 5, at the edge of the through hole 104g near the axis of the fitting cylinder 104a. Is provided. The engagement piece 104h protrudes outward of the fitting cylinder part 104a from the end wall part 104f in the axial direction of the fitting cylinder part 104a, and as a whole, the diameter of the fitting cylinder part 104a becomes closer to the tip in the protruding direction. It is inclined so as to be located outside the direction. The engagement piece 104h is set to have a thickness so as to be elastically deformed in the radial direction of the fitting cylinder portion 104a (in the engagement / disengagement direction with respect to the peripheral portion of the mounting hole 30a). A claw 104i is formed at the distal end portion of the engagement piece 104h to engage with the distal end surface of the second annular portion 30d constituting the peripheral portion of the attachment hole 30a. In addition, an inclined surface 104j is formed on the front end surface of the engagement piece 104h. The inclined surface 104j is inclined so as to be positioned radially inward of the fitting cylinder portion 104a as it approaches the tip of the engagement piece 104h.

  A small tube portion (guide portion) 104k is formed on the end wall portion 104f. The small tube portion 104k extends from the end wall portion 104f in the axial direction of the fitting tube portion 104a and toward the inside of the fitting tube portion 104a. The part is closed. The removal member 120 is guided by the small cylinder portion 104k.

  As shown in FIG. 8, the detaching member 120 includes a substantially circular plate-shaped operation part 120a and three pressing pieces (pressing parts) 120b, 120b, 120b for pressing the engaging piece 104h. The operation unit 120a is for an operator to operate when removing the first drive link 104, and is completely inserted into the protrusion 104d of the first drive link 104 as shown in FIG. It is set to a thick wall. As shown in FIGS. 8 and 9, the operation unit 120a is provided with three pairs of cutouts 120c and 120c at equal intervals in the circumferential direction. Between the pair of notches 120c and 120c, an elastic piece (biasing portion) 120d that is elastically deformed in the thickness direction of the operation portion 120a is formed. The elastic piece 120d is a first locking portion.

  The elastic piece 120d protrudes radially outward from the peripheral edge of the operation portion 120a. As shown in FIG. 5, the elastic piece 120d is located inside the protrusion 104d of the first drive link 104 and is in contact with the proximal end portion of the fitting cylinder 104a. To be locked. The elastic piece 120d is a first locking portion. A cylindrical portion 120e that protrudes in the insertion direction of the first drive link 104 into the fitting cylinder portion 104a is provided at the center of the operation portion 120a. The cylindrical portion 120e is inserted into the small tube portion 104k of the link 104 and guided in the axial direction.

  As shown also in FIG. 10, the pressing piece 120b of the detaching member 120 protrudes in the same direction as the cylindrical portion 120e, and the circumferential direction of the operation portion 120a corresponds to the locking piece 104h of the first drive link 104. Are arranged at equal intervals. The width of the pressing piece 120 b is set to a dimension that can be inserted into the through hole 104 g of the first drive link 104. As shown in FIG. 5, the length of the pressing piece 120b is set so that the tip side is inserted into the through hole 104g and protrudes outward of the fitting tube portion 104a from the end wall portion 104f. The front end portion of the pressing piece 120b abuts on the side surface of the locking piece 104h and presses the locking piece 104h toward the direction approaching the axis of the fitting cylinder portion 104a (the direction separating from the peripheral edge of the mounting hole 30a). It is supposed to be. A locking protrusion (second locking portion) 120f that locks to the end of the fitting tube portion 104a is formed at the tip of the pressing piece 120b. An inclined surface 120g is formed on the tip surface of the pressing piece 120b. The inclined surface 120g is inclined so that the thickness of the pressing piece 120b decreases as it approaches the tip.

  The removal member 120 removes the link 104 and the engagement position (shown in FIG. 5) in which the engagement piece 104h of the first drive link 104 is engaged with the peripheral edge of the mounting hole 30a during normal use. At this time, the engagement piece 104h can be switched to a disengagement position (shown in FIG. 11) where the engagement piece 104h is disengaged from the peripheral edge of the attachment hole 30a. When switching the detaching member 120 from the engagement position to the disengagement position, the elastic piece 120d is elastically deformed by pushing the operating portion 120a to the inside of the casing 30, and the displacement of the detaching member 120 is allowed. 104k is guided in the axial direction of the fitting tube portion 104a. Further, the three pressing pieces 120b, 120b, and 120b respectively press the engaging piece 104h, whereby the engaging piece 104h is detached from the peripheral portion of the mounting hole 30a and the link 104 can be removed.

  One end of the first drive link 104 protrudes from one end pin 104b that is engaged with the first driven link 103 while being inserted into the first hole 103b of the first driven link 103, and the other end is provided with a first slit. The other side pin 104c which engages in the state inserted in 102b protrudes.

  As shown in FIG. 4, the second driven link 105 is formed in substantially the same shape as the first driven link 103, and has a second insertion hole 105a and a second hole portion 105b.

  The second drive link 106 is formed in a substantially linear shape. One end portion of the second drive link 106 is attached to the casing 30 in the same manner as the first drive link 106, and a removal member 120 having the same structure is provided.

  At the other end of the second drive link 106, a one-side pin 106b that protrudes while being inserted into the second hole 105b is projected. An other-side pin 106c that is engaged with the second drive link 106 in a state of being inserted into the second slit 102c protrudes from a portion closer to the one-side pin 106b than the hole 106a. Reference numeral 106 d is a protrusion similar to the protrusion 104 d of the first drive link 104.

  When the motor actuator 100 operates, an operating force is applied to the drive plate 102, and the drive plate 102 rotates. By the rotation of the drive plate 102, the first slit 102b and the second slit 102c are displaced in the rotation direction. Due to the displacement of the first slit 102b, the other side pin 104c of the first drive link 104 is engaged and displaced with the peripheral edge of the first slit 102b, and the first drive link 104 corresponds to the shape of the first slit 102b. I will draw and move. Due to the movement of the first drive link 104, the one-side pin 104b engages with the peripheral edge of the first hole 103b, and the first driven link 103 moves, whereby the first blowing direction switching damper 76 rotates. .

  Further, due to the displacement of the second slit 102c, the other pin 106c of the second drive link 106 is engaged and displaced with the peripheral edge of the second slit 102c, and the second drive link 106 corresponds to the shape of the second slit 102c. It will move by drawing the trajectory. Due to the movement of the second drive link 106, the one side pin 106b engages with the peripheral edge portion of the second hole 105b of the second driven link 105 to move the second driven link 105, thereby switching the second blowing direction. The damper 77 rotates.

  As described above, the operating force is transmitted by inserting the other side pin 104c of the first driving link 104 and the other side pin 106c of the second driving link 106 into the first slit 102b and the second slit 102c of the driving plate 102, respectively. Thus, the movement of the first drive link 104 and the second drive link 106 can be easily set by the shape of the slits 102b and 102c.

  By rotation of the first blowing direction switching damper 76 and the second blowing direction switching damper 77, the center blowing portion 66a, the side blowing portion 66b, the defroster outlet 70, and the second opening 72 are opened and closed, respectively. Arbitrary blowing mode such as face mode, defroster mode, foot mode, etc.

  As shown in FIG. 2, air outlets 37 and 38 are provided in the vicinity of the front side cold air outlet 37 and the rear side cold air outlet 38 in the air flow path R of the casing 30 according to the room temperature set by the occupant, respectively. A first temperature adjustment damper 48 and a second temperature adjustment damper 49 that are opened and closed are disposed.

  The first temperature adjustment damper 48 is a butterfly damper including a rotating shaft 58 and two closing portions 59 extending on both radial sides of the rotating shaft 58. Seal members 61 are disposed on the peripheral edge of the closing portion 59. The left and right ends of the rotation shaft 58 of the first temperature adjustment damper 48 are supported by the left and right side walls of the casing 30. The left end portion of the rotation shaft 58 passes through the left side wall portion of the casing 30.

  The second temperature adjustment damper 49 is a butterfly damper including a rotating shaft 50 and a closing portion 51 extending on both sides in the radial direction of the rotating shaft 50. Sealing members 56 are disposed on the opposite sides of the peripheral portion of the closing portion 51. The left and right ends of the rotation shaft 50 of the second temperature adjustment damper 49 are supported by the left and right side walls of the casing 30. The left end portion of the rotation shaft 50 penetrates the left wall portion of the casing 30.

  As shown in FIG. 2, a temperature adjustment motor actuator 110 and a temperature adjustment link structure 111 are disposed on the upper portion of the left side wall portion of the casing 30. The motor actuator 110 and the temperature adjusting link structure 111 are configured in the same manner as the blowing direction switching motor actuator 10 and the blowing direction switching link structure 101.

  Next, the manufacturing point of the blowing direction switching link structure 101 will be described. First, the drive plate 102 and the links 103 to 106 are formed of a resin material. When the first drive link 104 is molded, the removal member 120 is molded at once with the same mold (not shown), and after the mold release, the removal member 120 is attached to the casing 30 before the first drive link 104 is assembled. Assemble to 104 and integrate. At this time, as shown in FIG. 10, the detaching member 120 is inserted into the fitting cylinder portion 104a of the first drive link 104 from the pressing piece 120b side. Then, the inclined surface 120g on the front end side of the pressing piece 120b is inserted into the fitting cylinder part 104a while being in sliding contact with the inner surface of the fitting cylinder part 104a. Then, as shown in FIG. 5, when the operation portion 120a of the detaching member 120 is completely inserted into the protrusion 104d, the elastic piece 120d and the locking projection 120f are viewed from both sides in the axial direction with respect to the fitting tube portion 104a. Lock. Thereby, the detaching member 20 is fixed to the first drive link 104 in a state where movement in the axial direction is prevented. At this time, the distal end side of the pressing piece 120b is inserted into the through hole 104g, thereby preventing the removal member 120 from rotating in the circumferential direction.

  Since the detaching member 120 attached to the first drive link 104 does not protrude from the ridge 104d of the first drive link 104 and is located in the ridge 104d, the detaching member 120 is located on the instrument panel. 2 and other parts of the air conditioner 1 will not interfere with each other.

  Thereafter, the first driven link 103 and the second driven link 104 are assembled to the casing 30. Thereafter, the first drive link 104 is assembled to the casing 30. When the fitting cylinder portion 104a of the first drive link 104 is inserted into the cylindrical portion 30b, the inclined surface 104j of the engagement piece 104h is slidably contacted with the inner peripheral surface of the second annular portion 30d, and the link 104 is predetermined. It will be led to the mounting position. At this time, the engagement piece 104h is elastically deformed toward the inside of the fitting tube portion 104a. When the fitting cylinder portion 104a is completely inserted and the claw 104i gets over the second annular portion 30d, the shape of the engagement piece 104h is restored, and the claw 104i engages with the peripheral portion of the mounting hole 30a. As a result, the first drive link 104 is attached to the casing 30 together with the removal member 120. The second drive link 106 is also attached to the casing 30 in the same manner.

  Next, the drive plate 120 and the motor actuator 100 are assembled to the casing 30.

  Next, the case where the 1st drive link 104 is removed at the time of repair of the air conditioner 1, etc. is demonstrated. When removing the first drive link 104, first, as shown in FIG. 5, the operator pushes the operation portion 120a of the removal member 120 at the engagement position toward the inside (right side) of the casing 30. Then, as shown in FIG. 11, the elastic piece 120d bends and the operation part 120a moves toward the inside of the casing 30 together with the pressing piece 120b. At this time, since the detaching member 120 is guided by the small tube portion 104k of the first drive link 104, the detaching member 120 moves smoothly. Then, the pressing piece 120b presses the engaging piece 104h, the engaging piece 104h is elastically deformed in the releasing direction, and is released from the peripheral edge of the mounting hole 30a.

  As described above, since the engaging piece 104h of the first drive link 104 is elastically deformed by the detaching member 120 and separated from the peripheral edge of the mounting hole 30a, an unreasonable force is applied to the first drive link 104 and the casing 30. Does not work. Moreover, since the detaching member 120 is attached to the first drive link 104 in advance, it can be used immediately when necessary, and management and preparation are not required.

  As described above, according to this embodiment, the detaching member 120 inserted into the fitting cylinder portion 104a of the first drive link 104 is attached to the first drive link 104, and the first drive is performed by the detachment member 120 when necessary. Since the engagement piece 104h of the link 104 can be elastically deformed and released, the link 104 can be removed without having to prepare a dedicated tool for removing the first drive link 104. In addition, the link 104 and the casing 30 are not damaged and can be reused. Similarly, the second drive link 106 can be removed.

  Further, since the locking claw 120f of the detaching member 120 is integrally formed with the pressing piece 120b, the number of parts can be reduced and the cost can be reduced, and the space required for arranging the detaching member 120 in a compact manner can be reduced. .

  Further, since the three engagement pieces 104h are provided on the first drive link 104 at intervals in the circumferential direction of the fitting cylinder portion 104a, the link 104 can be attached in a stable state. At the time of removal work, the link 104 can be easily removed by detaching the three engagement pieces 104h at a time by the pressing piece 120b of the removal member 120. The number of the engagement pieces 104h and the pressing pieces 120b may be one, two, or four or more.

  Further, the removal member 120 is provided with an elastic piece 120d and a locking claw 120f, and the elastic piece 120d and the locking claw 120f are respectively locked from one side and the other side of the fitting cylinder portion 104a of the first drive link 104. Therefore, the detaching member 120 can be positioned and held at a predetermined position, and operability can be improved.

  Further, the detaching member 120 is normally set to an engagement position in which the engagement piece 120b is engaged with the peripheral edge of the attachment hole 30a, and the engagement piece 120b is set to the peripheral edge of the attachment hole 30a only when necessary. Therefore, the link 104 can be prevented from being accidentally removed.

  In addition, since the detaching member 120 is urged by the elastic piece 120d integrally formed with the detaching member 120 so as to be elastically deformable, the movement of the detaching member 120 can be allowed with a simple structure.

  In addition, since the small cylindrical portion 104k for guiding the detaching member 120 from the engagement position to the disengagement position is provided, the detachment member 120 can be smoothly moved and switched to the disengagement position, and the operability can be improved.

  In the above-described embodiment, the case where the first blowing direction switching damper 76 and the second blowing direction switching damper 77 are automatically opened and closed by the operating force of the motor actuator 100 has been described. An air conditioner configured such that the actuator 100 is omitted and the first blowing direction switching damper 76 and the second blowing direction switching damper 77 are manually opened and closed by an operating force (not shown) operated by an occupant. Can be applied. One end portion of the operation wire is connected to, for example, an operation dial or an operation lever of the instrument panel 2, and the other end portion is connected to the drive plate 102, and an operation force by an occupant is directly applied to the drive plate 102. It is like that.

  The present invention can also be applied to the link of the inside / outside air switching link structure 16 and the link of the temperature adjustment link structure 111.

  Moreover, although this embodiment demonstrated the case where this invention was applied to what is called a semicenter type air conditioner 1 with which the ventilation unit 3 and the air conditioning unit 4 were provided along with the left-right direction, this invention The present invention can also be applied to a so-called full center type air conditioner in which a unit and an air conditioning unit are integrated.

  As described above, the present invention can be applied, for example, with a link for driving the blowing direction switching damper.

It is a perspective view of a vehicle compartment front part. It is the figure which looked at the air-conditioner for vehicles concerning an embodiment from the vehicles back side. It is sectional drawing of an air conditioning unit. It is a left view of the upper part of an air conditioning unit. It is the VV sectional view taken on the line of FIG. It is a left view of the vicinity of the mounting hole of the casing. It is a side view of the fitting cylinder part vicinity of a 1st drive link. It is a perspective view of a removal member. It is a top view of a removal member. It is a disassembled perspective view of a 1st drive link and a removal member. FIG. 6 is a view corresponding to FIG.

DESCRIPTION OF SYMBOLS 1 Vehicle air conditioner 3 Blower unit 4 Air conditioning unit 30 Casing 30a Mounting hole 34 Evaporator (air conditioning apparatus)
43 Heater core (air conditioning equipment)
104 1st drive link 104a Fitting cylinder part 104h Engagement piece 104k Small cylinder part (guide part)
120 Detaching member 120a Operation part 120b Pressing piece (pressing part)
120d elastic piece (biasing part, first locking part)
120f Locking protrusion (second locking part)

Claims (5)

A mounting hole for attaching the link is formed in the casing that houses the air conditioning equipment,
The link is formed with a fitting cylinder portion that is rotatably inserted into the attachment hole, and an engagement piece that engages with a peripheral edge portion of the attachment hole.
In the vehicle air conditioner configured such that the engagement piece engages with a peripheral edge portion of the attachment hole in a state where the fitting cylinder portion of the link is inserted into the attachment hole of the casing.
The engaging piece of the link is configured to elastically deform in a direction to be engaged with and disengaged from the peripheral edge of the mounting hole,
A removal member for removing the link from the casing is inserted into the fitting tube portion of the link,
The detaching member includes a pressing portion that presses the engaging piece in a detaching direction to detach the engaging piece from a peripheral portion of the mounting hole, and an operation unit that operates the pressing portion to press the engaging piece in the detaching direction. A locking portion for locking to the link is provided ,
The detachable member is switched between a disengagement position where the engagement piece of the link is detached from the peripheral portion of the attachment hole and an engagement position where the engagement piece is engaged with the peripheral portion of the attachment hole. And an urging portion that urges the detaching member to be in the engaged position,
The vehicular air conditioner is characterized in that the urging portion is formed of an elastic piece integrally formed with the detachable member so as to be elastically deformable . In the vehicle air conditioner according to claim 1,
A vehicular air conditioner characterized in that a locking portion of the detachable member to the link is integrally formed with the pressing portion. The vehicle air conditioner according to claim 1 or 2,
In the link, a plurality of engagement pieces are provided at intervals in the circumferential direction of the fitting cylinder portion,
The vehicle air conditioner, wherein the detaching member is provided with a plurality of pressing portions corresponding to the engaging pieces. In the vehicle air conditioner according to any one of claims 1 to 3,
The vehicle air conditioner characterized in that the detaching member is provided with a first locking portion and a second locking portion that are locked from one side and the other side in the axial direction of the fitting tube portion of the link. In the vehicle air conditioner according to claim 1 ,
A vehicle air conditioner characterized in that the link is provided with a guide portion for guiding the removal member from the engagement position to the disengagement position.

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