WO2023021805A1 - レジスタ - Google Patents
レジスタ Download PDFInfo
- Publication number
- WO2023021805A1 WO2023021805A1 PCT/JP2022/021573 JP2022021573W WO2023021805A1 WO 2023021805 A1 WO2023021805 A1 WO 2023021805A1 JP 2022021573 W JP2022021573 W JP 2022021573W WO 2023021805 A1 WO2023021805 A1 WO 2023021805A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- boss
- damper
- cam
- shaft
- operation knob
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 58
- 238000003780 insertion Methods 0.000 claims description 142
- 230000037431 insertion Effects 0.000 claims description 142
- 230000007246 mechanism Effects 0.000 claims description 39
- 239000011324 bead Substances 0.000 claims description 37
- 238000009423 ventilation Methods 0.000 claims description 21
- 238000007664 blowing Methods 0.000 claims description 13
- 238000011144 upstream manufacturing Methods 0.000 description 80
- 230000002093 peripheral effect Effects 0.000 description 20
- 230000001143 conditioned effect Effects 0.000 description 13
- 238000006073 displacement reaction Methods 0.000 description 12
- 210000000078 claw Anatomy 0.000 description 10
- 230000033001 locomotion Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- -1 polybutylene terephthalate Polymers 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/15—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre with parallel simultaneously tiltable lamellae
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/34—Nozzles; Air-diffusers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/34—Nozzles; Air-diffusers
- B60H1/3414—Nozzles; Air-diffusers with means for adjusting the air stream direction
- B60H1/3421—Nozzles; Air-diffusers with means for adjusting the air stream direction using only pivoting shutters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/34—Nozzles; Air-diffusers
- B60H2001/3471—Details of actuators
- B60H2001/3478—Details of actuators acting on additional damper doors
Definitions
- This application relates to registers used for air outlets for ventilation and air conditioning, and to dampers that open and close ventilation paths.
- one of the registers used for the air outlet is a register that is provided on the instrument panel of the vehicle and blows out the conditioned air sent from the air conditioner.
- a register that is provided on the instrument panel of the vehicle and blows out the conditioned air sent from the air conditioner.
- an air outlet, horizontal fins, vertical fins, and a damper are arranged in order from the downstream side to the upstream side of the ventilation passage.
- This register includes a transmission shaft that transmits the rotational motion of the operation knob to the damper, and a rotation conversion mechanism that is connected to the transmission shaft and opens and closes the damper.
- the transmission shaft and the operation knob, and the transmission shaft and the rotation conversion mechanism are respectively connected by a joint mechanism such as a universal joint (universal joint) or a ball joint.
- the present application has been made to solve the above-described problems, and aims to provide a register that can eliminate excessive or insufficient tilting of the damper.
- the damper tilts between an open position that opens a ventilation passage and a closed position that closes the ventilation passage, and the damper is changed by changing the direction of rotation of the operation knob transmitted from the operation knob through a transmission shaft.
- a damper drive mechanism for tilting the damper between the open position and the closed position comprising a boss member connected to the operation knob via the transmission shaft, a boss shaft a case member that holds the boss member rotatably about the camshaft, the damper that is rotatably held by the case member about the camshaft, is connected to the boss member, and rotates according to the rotation of the boss member;
- the transmission shaft and the operation knob, and the transmission shaft and the boss member are each connected by a joint mechanism, and the case member extends along the axial direction of the boss shaft
- Disclosed is a register in which the cam shaft is held at a position shifted in a direction perpendicular to the axial direction of the boss shaft from the straight line, and the cam member is rotated by the
- the register of the present application when the rotation of the operation knob is transmitted to the damper via the transmission shaft, the boss member, and the cam member, the cam shaft held at a position displaced from the boss shaft, which is the rotation center of the boss member. Rotate the cam member to the center. As a result, by rotating the cam member about the axis eccentric to the boss member, it is possible to adjust the rotation mode of the cam member with respect to the boss member, and to eliminate excessive or insufficient tilting of the damper.
- FIG. 2 is a perspective view of a register according to the embodiment;
- FIG. 2 is a front view of the dial operation knob and a cross-sectional view taken along the line AA shown in FIG. 1;
- FIG. 4 is a perspective view showing some components of the register;
- FIG. 4 is a perspective view showing some components of the register;
- FIG. 3 is a view corresponding to FIG.
- FIG. 2 showing a front view with the dial operation knob rotated by 90 degrees and a cross-sectional view showing a state in which the damper is at the closed position;
- FIG. 4 is a rear view of the case member viewed from the upstream side;
- FIG. 3 is a schematic view showing a cross-section cut along line BB shown in FIG. 2 and showing a state in which the dial operation knob is in the open position;
- FIG. 3 is a cross-sectional view taken along line CC shown in FIG. 2, showing a state in which the dial operation knob is in the open position;
- FIG. 22 is a diagram showing a state in which the transmission shaft is rotated by 40 degrees from the state shown in FIG. 21;
- FIG. 23 is a diagram showing a state in which the transmission shaft is rotated by 40 degrees from the state shown in FIG. 22;
- FIG. 22 is a diagram showing a state in which the transmission shaft is rotated by 90 degrees from the state shown in FIG. 21;
- FIG. 23 is a diagram showing a state in which the transmission shaft is rotated by 90 degrees from the state shown in FIG. 22;
- FIG. 22 is a diagram showing a state in which the transmission shaft is rotated by 100 degrees from the state shown in FIG. 21;
- FIG. 23 is a diagram showing a state in which the transmission shaft is rotated by 100 degrees from the state shown in FIG. 22;
- FIG. 1 also shows a state in which the downstream fin group 15 is aligned vertically, the upstream fin group 17 is aligned horizontally, and the blowing direction of the conditioned air is not changed (hereinafter sometimes referred to as a neutral state).
- FIG. 1 also shows a state in which the dial operation knob 21 is placed at the open position where the damper 19 is opened.
- an instrument panel (not shown) is provided in front of the front seats (driver's seat and front passenger's seat) of the vehicle.
- the register 10 is attached to a central portion, a side portion, or the like in the left-right direction (vehicle width direction) of the instrument panel.
- the register 10 changes the direction of conditioned air sent from an air conditioner (not shown) by means of the downstream fin group 15 and the upstream fin group 17, and blows the air into the passenger compartment from the air outlet 13A.
- the register 10 adjusts the blowing amount of the conditioned air with the damper 19 .
- the adjustment of the blowing amount in the present application is a concept including shutting off the blowing by closing the damper 19 .
- the register 10 includes a retainer 11, a bezel 13, a downstream fin group 15, an upstream fin group 17, a damper 19 and a dial operation knob 21.
- the register 10 is made of, for example, a synthetic resin (polybutylene terephthalate (PBT), ABS resin, etc.), except for some parts such as leaf springs 62, which will be described later.
- the retainer 11 has a tubular shape extending in the front-rear direction.
- a ventilation passage 23 is formed inside the retainer 11 .
- a rear end portion of the retainer 11 is connected to an air conditioner through a ventilation passage 23 . In the neutral state, the conditioned air blown from the air conditioner is blown in the airflow direction 25 along the longitudinal direction in the ventilation passage 23 .
- the ventilation path 23 has a substantially rectangular shape that is elongated in the vertical direction when cut along a plane perpendicular to the front-rear direction. Air passage 23 is surrounded by four side walls of retainer 11 . These four wall portions are a pair of side walls 27 facing each other in the horizontal direction and a pair of side walls 28 facing each other in the vertical direction.
- the bezel 13 is attached to the lower end of the retainer 11.
- the bezel 13 is formed with a substantially rectangular air outlet 13A elongated in the vertical direction.
- a downstream end surface of the bezel 13 and a portion around the air outlet 13A is a design surface of the register 10.
- the retainer 11 communicates with the air outlet 13A and blows conditioned air along the air blowing direction 25 to the air outlet 13A.
- the air conditioner side in the blowing direction 25 will be referred to as "upstream”
- the bezel 13 side or in front of the bezel 13 will be referred to as "downstream”.
- FIG. 3 shows an exploded perspective view of some constituent members of the register (the downstream fin group 15 and the upstream fin group 17).
- the downstream fin group 15 is arranged inside the connecting portion between the bezel 13 and the retainer 11 .
- the downstream fin group 15 has two downstream fins 31 and a downstream fin 32 arranged between the two downstream fins 31 in the left-right direction.
- the downstream fins 32 have the same configuration as the downstream fins 31 except for mounting holes 33 and regulation pins 32D, which will be described later.
- the downstream fins 31 and 32 are arranged side by side while being separated from each other in the left-right direction.
- the downstream fin 31 has a predetermined thickness in the horizontal direction and has a substantially rectangular plate shape elongated in the vertical direction.
- the downstream fin 32 has a substantially rectangular plate shape on both sides in the vertical direction, and a mounting hole 33 is formed in the central portion in the vertical direction.
- the downstream fin 32 has a larger thickness in the left-right direction at the portion where the mounting hole 33 is formed, and has a shape that expands (spreads) toward the downstream fin 31 side.
- the downstream fins 31 and 32 are rotatably held with respect to the retainer 11 by bearing members 35 attached to the pair of side walls 27 holding the respective downstream fin shafts 31A and 32A.
- the downstream fins 31 and 32 rotate around a vertical axis of rotation.
- downstream fins 31 and 32 are connected to the restriction pins 31B and 32B by link bars 37, respectively. Therefore, of the two downstream fins 31 and 32, the remaining downstream fins also rotate in synchronization with the rotation of an arbitrary downstream fin.
- the downstream fin group 15 rotates the downstream fins 31 and 32 in the left-right direction in response to the operation of moving the dial operation knob 21 attached to the downstream fin 32 in the left-right direction to blow out conditioned air from the air outlet 13A. Change the direction left and right.
- the dial operation knob 21 is vertically slidable within the mounting hole 33 while being supported by the downstream fins 32 .
- a regulating pin 32D that is inserted into a regulating hole (not shown) of the upper bearing member 35 is provided.
- the rotation range of the downstream fin 32 is restricted by inserting the restriction pin 32D into the restriction hole.
- the downstream fin group 15 is restricted to a predetermined range of rotation in the horizontal direction.
- the upstream fin group 17 is provided upstream of the downstream fin group 15 and within the retainer 11 .
- the upstream fin group 17 has a plurality of (five in this embodiment) upstream fins 39 and auxiliary fin members 41 .
- the five upstream fins 39 and the auxiliary fin members 41 are arranged side by side while being separated from each other in the vertical direction.
- Three upstream fins 39 are arranged above the auxiliary fin member 41, and two upstream fins 39 are arranged below it.
- the upstream fin 39 has a predetermined thickness in the vertical direction and has a substantially rectangular plate shape elongated in the horizontal direction.
- the auxiliary fin member 41 has a rectangular tubular shape elongated in the left-right direction when viewed from the front, and is formed with a through hole 41A penetrating in the front-rear direction.
- the through-hole 41A has a substantially rectangular shape that is elongated in the left-right direction when cut along a plane perpendicular to the front-rear direction.
- the upstream fin 39 and the auxiliary fin member 41 are rotatably held with respect to the retainer 11 by holding the upstream fin shafts 39A and 41B by bearing members 45 provided on each of the pair of side walls 27 .
- the upstream fin 39 and the auxiliary fin member 41 rotate around a rotation axis along the left-right direction.
- the upstream fin 39 and the auxiliary fin member 41 are connected to each of the restriction pins 39B and 41D by a link bar 47. Therefore, among the five upstream fins 39 and the auxiliary fin member 41, the remaining fins also rotate in synchronization with the rotation of any fin.
- the upstream fin group 17 when the dial operation knob 21 of the downstream fin 32 is moved vertically, the operation of the dial operation knob 21 is transmitted to the annular member of the auxiliary fin member 41 via a transmission shaft 65 (see FIG. 4), which will be described later. 49 to rotate the upstream fin 39 and the auxiliary fin member 41 in the vertical direction.
- Walls that form the through holes 41A of the auxiliary fin members 41 and face each other in the vertical direction are thin plate-shaped and function as fins that change the flow of conditioned air.
- the upstream fin group 17 vertically rotates the upstream fins 39 and the auxiliary fin members 41 to vertically change the direction of blowing the conditioned air from the air outlet 13A.
- the dial operation knob 21 has a dial board 51, a dial portion 52, a dial cover 55, a mounting plate 57, a connecting shaft 59, and the like.
- the dial board 51 is attached to the front surface of the cylindrical dial portion 52 and rotates together with the dial portion 52 .
- the dial board 51 is provided with a position mark 51A that indicates the rotational position of the dial operation knob 21 .
- the dial portion 52 has a cylindrical shape. The outer peripheral surface of the dial portion 52 is processed (for example, knurled) to prevent slippage of a finger operating the dial operation knob 21 .
- the dial cover 55 has extended portions 55B extending vertically from a cylindrical body portion 55A, and four slits 55C are formed between the body portion 55A and the extended portions 55B in the circumferential direction. A portion forming the attachment hole 33 of the downstream fin 32 is inserted from the upstream side into each of the four slits 55C. As a result, the dial operation knob 21 can slide in parallel with the axial direction (vertical direction) of the downstream fins 32 while a part of the mounting hole 33 is inserted into the slit 55C.
- the mounting plate 57 has a thin plate-like shape with a predetermined width in the horizontal direction and is long in the vertical direction, and a through hole 57A is formed in the center in the vertical direction.
- the mounting plate 57 also has engaging portions 57B on both sides of the through hole 57A in the vertical direction. Each of the pair of engaging portions 57B has a rod shape that protrudes toward the downstream side.
- the connecting shaft 59 has a rod-shaped shaft portion 59A and a disk portion 59B provided at the upstream end of the shaft portion 59A.
- the shaft portion 59A extends in a direction perpendicular to the downstream surface of the disc portion 59B.
- the mounting plate 57 is fixed to the dial cover 55 by inserting an engaging claw 55D provided at the upstream end (tip) of the extended portion 55B of the dial cover 55 and locking it.
- the connecting shaft 59 is inserted into the dial cover 55 from the upstream side through the through hole 57A of the mounting plate 57 .
- the dial portion 52 is fixed to the downstream end (tip) of the shaft portion 59A.
- the dial board 51, the dial portion 52, and the connecting shaft 59 are held by a dial cover 55 so as to be rotatable about an axis extending in the front-rear direction.
- the engaging portion 57B of the mounting plate 57 is inserted into the mounting hole 33 from the upstream side. Thereby, the engaging portion 57B restricts the lateral movement of the dial operation knob 21 with respect to the downstream fin 32 .
- the dial operation knob 21 can be stably slid vertically with respect to the downstream fin 32 .
- the disc portion 59B of the connecting shaft 59 is engaged with a pair of claw portions 57D provided on the upstream side surface of the mounting plate 57 to restrict the axial position of the shaft portion 59A.
- the disk portion 59B is rotatably supported with respect to the mounting plate 57 about the axial direction of the shaft portion 59A in a state of being locked by the claw portion 57D.
- the connecting shaft 59 rotates integrally with the dial board 51 and the dial portion 52 .
- a plate spring 62 is attached to the upstream surface of the mounting plate 57 .
- the leaf spring 62 gives the dial operation knob 21 a click feeling.
- a convex portion provided on the plate spring 62 can be inserted into a concave portion provided on the disk portion 59B by elastic force.
- the dial operation knob 21 dial portion 52
- the convex portion of the plate spring 62 is fitted into the concave portion by elastic force.
- the finger of the user operating the dial operation knob 21 can be given an appropriate click feeling according to the operation of opening or closing the damper 19 .
- the rotational position of the dial operation knob 21 can be maintained at the open position and the closed position of the damper 19, and rattling of the connecting shaft 59 can be suppressed.
- the mounting plate 57 is mounted on the downstream fin 32 with the load applying member 63 mounted on the downstream surface.
- the load applying member 63 slides on the downstream fin 32 when the dial operation knob 21 is slid, and applies an appropriate load by frictional force.
- the load applying member 63 can provide an appropriate operational feel to the finger of the user operating the dial operation knob 21 and suppress rattling of the slide position of the dial operation knob 21 with respect to the mounting hole 33 .
- a transmission shaft 65 is attached to the upstream surface of the disc portion 59B.
- the downstream end of the transmission shaft 65 is provided with a bifurcated swing connecting portion 65A.
- a swing connecting member 67 is rotatably attached to the inner side of the forked portion of the swing connecting portion 65A.
- the swing connecting member 67 is pivotally supported by the swing connecting portion 65A so as to be rotatable about an axis orthogonal to the axis of the transmission shaft 65 .
- the swing connecting member 67 is rotatably fitted (supported) on a shaft portion 59D provided on the upstream side surface of the disk portion 59B.
- the swing connecting member 67 is supported by the shaft portion 59D so as to be rotatable about an axis perpendicular to the axis of the transmission shaft 65 and perpendicular to the axial direction supported by the swing connecting portion 65A.
- the transmission shaft 65 is connected to the connection shaft 59 (dial operation knob 21) by a universal joint (joint mechanism), and all the joints between the shaft portion 59A of the connection shaft 59 and the transmission shaft 65 are perpendicular to each other. , and can transmit rotational force around the axis of the shaft portion 59A (dial operation knob 21).
- a substantially rectangular parallelepiped universal joint engaging portion 69 is provided at the upstream end of the transmission shaft 65 .
- the universal joint engaging portion 69 is provided with a pin 69A on each outer peripheral surface in a direction perpendicular to the axial direction of the transmission shaft 65 .
- the pair of pins 69A protrude outward in a direction perpendicular to the outer peripheral surface of the universal joint engaging portion 69 (direction perpendicular to the axis of the transmission shaft 65).
- Rotation of the transmission shaft 65 that is, rotation of the dial operation knob 21 is transmitted to the damper 19 via a damper drive mechanism 71, which will be described later.
- the universal joint engaging portion 69 is inserted into the boss member 73 of the damper driving mechanism 71 .
- a cylindrical portion 73A is provided on the downstream side of the boss member 73.
- Four grooves 73B are formed in the inner wall of the cylindrical portion 73A along the axial direction of the cylindrical shape.
- Each of the four grooves 73B is provided at intervals of 90 degrees in the circumferential direction, and is formed along the axial direction of the cylindrical portion 73A from the opening to the bottom of the cylindrical portion 73A.
- a pair of pins 69A of the universal joint engaging portion 69 are inserted into two of the four grooves 73B, engage with the grooves 73B, and are movable along the grooves 73B.
- the transmission shaft 65 can swing with respect to the boss member 73 with the pin 69A inserted into the groove 73B.
- the boss member 73 is rotatable with respect to the case member 74 about an axis extending in the front-rear direction.
- the upstream surface of the universal joint engaging portion 69 is provided with a convex portion 69D for reducing the contact area with the bottom surface of the cylindrical portion 73A.
- the convex portion 69D is provided, for example, on the upstream side surface of the universal joint engaging portion 69, and is formed by cross-shaped ribs perpendicular to the axial direction of the transmission shaft 65 so that the intersection point protrudes upstream.
- the cross-shaped rib of the convex portion 69D has a lower protrusion height as it moves away from the intersection (toward the outside).
- the transmission shaft 65 is also connected to the boss member 73 by a universal joint (joint mechanism), and can rotate and swing in all directions orthogonal to each other's axes with the cylindrical portion 73A of the boss member 73. , and the rotational force around the axis of the transmission shaft 65 can be transmitted to the boss member 73 . Therefore, the transmission shaft 65 is tiltably connected to the boss member 73 while transmitting the rotation of itself, which rotates according to the dial operation knob 21 , to the boss member 73 . Further, by providing the convex portion 69D, it is possible to transmit the rotational force while reducing the frictional resistance between the transmission shaft 65 and the cylindrical portion 73A.
- annular member 49 is attached inside the auxiliary fin member 41 .
- the annular member 49 has an annular shape with a substantially rectangular cross section elongated in the left-right direction, and is rotatable by a support shaft 41E parallel to the upstream fin shaft 41B of the auxiliary fin member 41.
- the transmission shaft 65 is attached while being inserted into the annular member 49 .
- the vertical slide movement of the dial operation knob 21 is transmitted to the auxiliary fin member 41 via the transmission shaft 65 and the annular member 49 .
- the five upstream fins 39 rotate in synchronization with the auxiliary fin member 41 by the link bar 47 .
- the upstream fins 39 and the auxiliary fin members 41 rotate vertically as the dial operation knob 21 slides. Therefore, the upstream fin group 17 vertically changes the blowing direction of the conditioned air from the air outlet 13A in accordance with the vertical movement of the dial operation knob 21 .
- the damper 19 has a first damper plate 81 and a second damper plate 82 .
- the first and second damper plates 81 and 82 are flat plates, and are arranged so as to overlap each other's planes in the closed position (see FIG. 2).
- the first damper plate 81 has a plurality of protrusions 81D formed on the outer peripheral portion thereof on a plane facing the second damper plate 82 in the closed position. This projection 81D makes point contact with the first and second damper plates 81 and 82 in the closed position.
- the damper 19 is pivotally supported by the bearing portion 83A of the damper support member 83.
- the damper 19 is rotatably supported by the damper support member 83 with the convex damper shaft portion 81A of the first damper plate 81 inserted into the concave damper shaft portion 82A of the second damper plate 82. It is rotatably supported at the center.
- the damper support member 83 is held by a retainer member 85 fixed to the retainer 11 . Therefore, the damper 19 is rotatably held at a predetermined position within the ventilation passage 23 via the retainer member 85 and the damper support member 83 .
- the retainer member 85 is provided between the upstream fin group 17 and the damper 19 in the blowing direction 25 .
- the retainer member 85 has a body portion 85A and a pair of column portions 85B.
- the body portion 85A is formed in an annular shape, and the cylindrical portion 73A of the boss member 73 is inserted from the upstream side.
- the body portion 85A is formed with a through hole that matches the size of the outer peripheral shape of the cylindrical portion 73A.
- a plurality of bead portions 73D are formed along the axial direction of the cylindrical portion 73A on the outer peripheral surface of the cylindrical portion 73A.
- the cylindrical portion 73A is rotatably held with the bead portion 73D in contact with or slightly separated from the inner wall of the main body portion 85A when inserted into the main body portion 85A.
- the main body portion 85A is formed with through holes corresponding to the sizes of the cylindrical portion 73A and the bead portion 73D.
- the pair of pillars 85B has a plate shape with planes parallel to the left-right direction and the front-rear direction, one end of which is connected to the outer peripheral surface of the main body 85A, and the other end of which is connected to the inner wall of the retainer 11. Thereby, the body portion 85A is fixed at a predetermined position in the blowing direction 25 by the pair of pillar portions 85B.
- the damper support member 83 has a cylindrical main body portion 83B in the center portion in the vertical direction. A bearing portion 83A that supports the damper 19 is formed at the upstream end of four plates 83D fixed to the body portion 83B.
- the damper support member 83 is fixed to the retainer member 85 with the body portion 85A inserted into the body portion 83B.
- the damper support member 83 is locked to the retainer member 85 by engaging a claw portion 85D provided on the outer peripheral surface of the main body portion 85A with the engaged portion 83E.
- the retainer member 85 has the damper support member 83 attached thereto with the column portion 85B inserted into the notch portion of the main body portion 83B.
- a positioning member 85E projecting from the outer peripheral surface is formed on the outer peripheral surface of the body portion 85A. Further, the damper support member 83 is formed with an insertion hole into which the positioning member 85E is inserted.
- the user when attaching the damper support member 83 to the retainer member 85, the user can attach the damper support member 83 to the retainer member 85 using the positioning member 85E as a mark, thereby suppressing the occurrence of errors in the attachment direction. .
- a damper-side gear portion 81B is formed in the central portion of the downstream end of the first damper plate 81 .
- a damper-side gear portion 82B is formed in the central portion of the downstream end of the second damper plate 82 .
- the damper-side gear portion 81B is formed along the outer peripheral surface of the damper shaft portion 81A so as to extend from the downstream end of the first damper plate 81 to the left surface.
- the damper-side gear portion 82B is formed along the outer peripheral surface of the damper shaft portion 82A so as to extend from the downstream end of the second damper plate 82 to the right surface.
- each of the damper-side gear portions 81B and 82B is formed at an end portion of each of the first and second damper plates 81 and 82 on the damper drive mechanism 71 (gear member 76) side (downstream side, front side).
- the damper 19 is assembled to the damper support member 83 in a state in which each of the damper-side gear portions 81B and 82B is meshed with the gear member 76 of the damper driving mechanism 71, which will be described later.
- the damper 19 opens and closes as the gear member 76 rotates.
- the first and second damper plates 81 and 82 rotate in a direction away from each other (horizontally widening direction) as the dial operation knob 21 rotates from the open position where the air passage 23 is opened as shown in FIG. Rotation of the dial operation knob 21 is transmitted to the damper 19 via the transmission shaft 65 and the damper driving mechanism 71 .
- the first and second damper plates 81 and 82 are brought to the closed position shown in FIG. 7, for example, when the dial operation knob 21 is rotated clockwise by 90 degrees from the position shown in FIG.
- Each of the first and second damper plates 81 and 82 widens in the left-right direction and contacts the inner wall of the retainer 11 at the outer peripheral edge to close the ventilation passage 23 .
- the damper driving mechanism 71 has a boss member 73, a case member 74, and a cam member 75 in order from the downstream side. 8 and 9 show a state in which the damper drive mechanism 71 is attached to the retainer member 85. FIG. The boss member 73 and the retainer member 85 are inserted into the body portion 83B of the damper support member 83 from the downstream side in the state shown in FIGS.
- the case member 74 has a main body portion 74A and a wall portion 74B.
- the body portion 74A has a cylindrical shape with a predetermined thickness in the front-rear direction. When the main body portion 74A is viewed from one side in the front-rear direction, it has an elliptical shape.
- a boss concave portion 74D is formed in a portion facing the downstream side of the main body portion 74A.
- the boss recess 74D is recessed upstream along the front-rear direction.
- a boss shaft 74F that supports the boss member 73 is provided at the bottom 74E of the boss recess 74D.
- the boss recess 74D is a cylindrical hole with a circular cross-section taken along a plane perpendicular to the axial direction of the boss shaft 74F.
- the boss shaft 74F is provided in the center of the circular bottom portion 74E.
- the boss member 73 has a cylindrical portion 73A extending in the front-rear direction.
- a bottom portion 73E of the cylindrical portion 73A is circular.
- a boss bearing hole 73F is formed in the center of the upstream surface of the bottom portion 73E.
- the boss bearing hole 73F penetrates the bottom portion 73E in the axial direction of the cylindrical portion 73A, that is, in the front-rear direction.
- the cross-sectional shape of the boss bearing hole 73F is circular.
- the boss member 73 has its end portion including the bottom portion 73E on the upstream side inserted into the boss recess portion 74D of the case member 74, and the boss shaft 74F is inserted into the boss bearing hole 73F.
- the boss member 73 rotates relative to the fixed case member 74 around a boss axis 74F extending in the front-rear direction.
- the wall portion 74B is an arcuate wall that is formed along the outer peripheral shape of the main body portion 74A and protrudes downstream (frontward).
- the wall portion 74B is formed with a claw portion 74G that engages with the engagement hole of the body portion 83B of the damper support member 83 .
- the relative position of the case member 74 with respect to the damper support member 83 is fixed by engaging the claw portion 74G with the main body portion 83B (see FIG. 6).
- the wall portion 74B is formed with an engaging hole 74H with which the engaging claw 85F (see FIG. 6) of the retainer member 85 is engaged.
- the case member 74 is fixed in position relative to the retainer member 85 by engaging the engaging claws 85F with the engaging holes 74H. This fixes the position of the case member 74 relative to the retainer 11 .
- the cylindrical portion 73A of the boss member 73 is formed with a flange portion 73G.
- the flange portion 73G has a disk shape formed outward from the outer peripheral surface of the cylindrical portion 73A in a direction orthogonal to the axial direction.
- Each of the four bead portions 73D described above is formed in a portion (position sandwiching the flange portion 73G in the front-rear direction) excluding the flange portion 73G in the axial direction.
- the bead portion 73D downstream of the flange portion 73G contacts the inner wall of the main body portion 85A of the retainer member 85 to reduce the contact area between the boss member 73 and the retainer member 85. As shown in FIG.
- the bead portion 73D on the upstream side of the flange portion 73G contacts the inner wall of the boss recess portion 74D of the case member 74 to reduce the contact area between the boss member 73 and the case member 74.
- the boss member 73 is brought into point contact with the retainer member 85 and the case member 74 , and the boss member 73 can be smoothly rotated with respect to the retainer member 85 and the case member 74 .
- the flange portion 73G is formed at a predetermined height 91 from the bottom portion 73E in the axial direction of the cylindrical portion 73A.
- the flange portion 73G is formed so as to extend outward from the bead portion 73D.
- the boss member 73 is attached with the flange portion 73G sandwiched between the main body portion 74A and the main body portion 85A in the front-rear direction.
- a plurality of (for example, four) bead portions 74J are formed on the end surface of the body portion 74A on the side of the flange portion 73G.
- the four bead portions 74J are formed on the downstream end face of the main body portion 74A at intervals of approximately 90 degrees (see FIG. 11).
- a plurality of (for example, four) bead portions 85G are formed on the end surface of the body portion 85A on the side of the flange portion 73G.
- the four bead portions 85G are formed on the upstream end surface of the body portion 85A at intervals of 90 degrees.
- Each of the case member 74 and the retainer member 85 makes the boss member 73 a retainer by bringing the bead portions 74J and 85G into point contact with the flange portion 73G not only in the direction perpendicular to the axial direction but also in the axial direction (front-rear direction). It can be rotated more smoothly with respect to the member 85 and the case member 74 .
- the boss member 73 when the cylindrical portion 73A on the upstream side of the flange portion 73G is inserted into the boss recess portion 74D, the boss member 73 is in a state in which the bead portion 74J is brought into contact with the upstream side surface of the flange portion 73G, or the flange portion 73G The upstream side surface and the bead portion 74J are slightly separated from each other.
- the height 91 (see FIG. 13) forming the flange portion 73G is such that when the cylindrical portion 73A is inserted into the boss recess portion 74D, the upstream side surface of the flange portion 73G comes into contact with the bead portion 74J. It is the height which becomes a position slightly spaced apart from 74J.
- an insertion hole 74K is formed in the bottom portion 74E.
- the insertion hole 74K is formed, for example, in an arcuate shape centered on the boss shaft 74F along the edge of the bottom portion 74E (the inner wall of the boss recess 74D) within a predetermined radius and angle.
- the predetermined angle range at which the insertion hole 74K is formed is, for example, approximately 120 degrees to approximately 150 degrees.
- a boss pin 73H is formed on the upstream surface of the bottom portion 73E.
- the boss pin 73H has, for example, a cylindrical shape with an outer diameter larger (thicker) than the inner diameter of the boss bearing hole 73F, and is formed in a direction perpendicular to the plane of the bottom portion 73E, that is, along the axial direction of the cylindrical portion 73A. .
- the boss pin 73H is formed, for example, at the edge of the upstream side of the circular bottom portion 73E.
- the boss pin 73H is inserted into the insertion hole 74K in a state where the boss member 73 is attached to the case member 74, and the tip protrudes upstream from the insertion hole 74K.
- the groove width of the insertion hole 74K is slightly larger than the outer diameter of the boss pin 73H.
- the boss pin 73H moves inside the insertion hole 74K according to the rotation operation of the dial operation knob 21. As shown in FIG.
- a cam concave portion 74L is formed in a portion facing the upstream side of the main body portion 74A.
- the cam recess 74L is recessed downstream along the front-rear direction.
- a cam bearing hole 74N for axially supporting the cam member 75 is formed in a bottom portion 74M of the cam recess 74L.
- the bottom portion 74M is formed on the rear surface of the bottom portion 74E on the downstream side.
- the bottom portion 74M is a cylindrical hole having a circular cross-sectional shape taken along a plane perpendicular to the front-rear direction.
- the cam bearing hole 74N is provided in the center of the circular bottom portion 74M, penetrates through the bottom portion 74M, and communicates the bottom portion 74M on the upstream side with the bottom portion 74E on the downstream side.
- the cam recess 74L on the upstream side and the boss recess 74D on the downstream side are provided at offset positions in the front-rear direction, that is, in the direction orthogonal to the axial direction of the boss shaft 74F.
- the cam bearing hole 74N is provided at a position displaced from the boss shaft 74F by a displacement width 93 in the vertical direction of FIG. 12 (hereinafter sometimes referred to as a displacement direction 95).
- the displacement width 93 is, for example, 3 mm. Therefore, the circular bottom portion 74E is shifted from the bottom portion 74M by the shift width 93 in the shift direction 95 .
- the cam bearing hole 74N is located at a position offset by a displacement width 93 from the center of the bottom portion 74E, that is, from the boss shaft 74F.
- the boss shaft 74F is located at a position shifted by a displacement width 93 from the center of the bottom portion 74M, that is, from the cam bearing hole 74N. Therefore, when the main body portion 74A is viewed from one of the front and rear directions, the main body portion 74A has an elliptical shape that widens in the shift direction 95 .
- the cam member 75 of the present embodiment is configured to be eccentric about a rotation axis that is displaced from the boss member 73 .
- the insertion hole 74K extends along the outer periphery of the bottom portion 74E from a position on the opposite side of the boss shaft 74F across the cam bearing hole 74N in the displacement direction 95 to a position slightly higher than the boss shaft 74F in the displacement direction 95 ( It is formed up to a position away from the cam bearing hole 74N in the displacement direction 95 .
- the wall portion 74B is provided at an end portion on the side opposite to the boss shaft 74F with the cam bearing hole 74N interposed therebetween in the displacement direction 95 .
- One bead portion 74J described above is formed at the center in the circumferential direction of the wall portion 74B and on the inner peripheral side (see FIG. 11).
- the cam member 75 has a disc shape with a predetermined thickness in the front-rear direction, and has a cam shaft 75B on the downstream side surface 75A.
- the camshaft 75B is formed in the center of the circular downstream side surface 75A and protrudes in a direction orthogonal to the downstream side surface 75A.
- the cam member 75 is housed in the cam recess 74L with the cam shaft 75B inserted into the cam bearing hole 74N of the case member 74.
- the cam member 75 is housed in a portion surrounded by the case member 74 and the body portion 83B of the damper support member 83 in the axial direction of the cam shaft 75B (see FIGS. 2 and 7).
- the cam member 75 is accommodated in the cam recess 74L in a rotatable state about the cam shaft 75B.
- a cam insertion portion 75D into which the boss pin 73H of the boss member 73 is inserted is formed on the downstream side surface 75A.
- the cam inserting portion 75D has a first inserting portion 75E, a second inserting portion 75F, and a connecting portion 75G that connects the first and second inserting portions 75E and 75F.
- the first insertion portion 75E is a position where the boss pin 73H is inserted when the damper 19 is in the open position (see FIG. 2).
- the second insertion portion 75F is a position where the boss pin 73H is inserted when the damper 19 is in the closed position (see FIG. 7).
- the cam insertion portion 75D has a substantially L-shape bent at the connecting portion 75G when the downstream side surface 75A is viewed from above.
- the bent corner portion 75H of the connecting portion 75G is provided on the opposite side of the second insertion portion 75F with respect to the straight line 97 connecting the camshaft 75B and the first insertion portion 75E.
- the first insertion portion 75E is formed at the outer peripheral end of the downstream side surface 75A.
- the connecting portion 75G is inclined toward the corner portion 75H with respect to the straight line 97 (radial direction) in the path from the first insertion portion 75E to the corner portion 75H, and is formed in a direction approaching the cam shaft 75B.
- the cam insertion portion 75D is formed in a direction intersecting the straight line 97 on the path from the corner portion 75H to the second insertion portion 75F.
- the second insertion portion 75F is positioned close to the cam shaft 75B.
- the tip of the boss pin 73H protruding upstream through the insertion hole 74K of the case member 74 is inserted into the cam insertion portion 75D.
- the boss pin 73H moves inside the insertion hole 74K according to the rotation operation of the dial operation knob 21.
- boss pin 73H moves from first insertion position 98 to second insertion position 99 shown in FIG.
- the first insertion position 98 is, for example, the position where the boss pin 73H is inserted when the damper 19 is in the open position, and is the position on the boss shaft 74F side of the insertion hole 74K in the displacement direction 95 .
- a second insertion position 99 is a position where the boss pin 73H is inserted when the damper 19 is closed, and is a position opposite to the boss shaft 74F with the cam bearing hole 74N interposed therebetween in the shift direction 95. be.
- the boss pin 73H moves from the first insertion position 98 toward the second insertion position 99 in the insertion hole 74K in accordance with the rotation of the dial operation knob 21, the boss pin 73H is engaged with the cam insertion portion 75D. It rotates by The boss pin 73H moves through the insertion hole 74K from the first insertion portion 75E to the second insertion portion 75F via the connecting portion 75G.
- the boss pin 73H is inserted into the second insertion portion 75F.
- the first distance L1 between the first insertion portion 75E and the cam shaft 75B is the second distance between the second insertion portion 75F and the cam shaft 75B. It is longer than the distance L2. More specifically, a portion of the first insertion portion 75E is formed along the circular outer circumference of the cam member 75 . The second insertion portion 75F is formed at a position close to the cam shaft 75B.
- the first distance L1 is, for example, the distance between the outer peripheral end portion of the first insertion portion 75E (the portion that becomes the outer peripheral end portion of the downstream side surface 75A) and the camshaft 75B.
- the second distance L2 is, for example, the distance between the end of the second insertion portion 75F in the moving direction of the boss pin 73H (the end farthest from the connecting portion 75G) and the cam shaft 75B.
- the first and second distances L1 and L2 are the distances between the cam shaft 75B and both ends of the cam insertion portion 75D, and the first distance L1 is longer than the second distance L2.
- a gear member 76 is provided on the upstream side of the cam member 75 .
- a pair of gear engaging portions 75K are formed on the upstream side surface 75J of the cam member 75. As shown in FIG.
- Each of the pair of gear engaging portions 75K has a substantially rectangular plate shape extending in a direction perpendicular to the plane of the upstream side surface 75J.
- the pair of gear engaging portions 75K are erected on the upstream side surface 75J so that their planes are parallel to each other.
- a base portion side between the pair of gear engaging portions 75K is connected to each other by a base portion 75L.
- a pair of gear engaging portions 75K are inserted into the gear member 76 .
- the gear member 76 has a substantially disk shape, and tooth portions 76A are formed at predetermined intervals along the outer circumference.
- the tooth portion 76A has a shape inclined toward the upstream side.
- the gear member 76 meshes with each of the damper-side gear portions 81B and 82B of the damper 19 so that their respective rotation axes are perpendicular to each other (the rotation axis of the gear member 76 and the rotation axis of the damper 19 are perpendicular to each other). It transmits a rotational force in a meshed state, that is, in a meshed state like a bevel wheel.
- a gear insertion hole 76B for inserting a pair of gear engaging portions 75K is formed through the center of the gear member 76 .
- Claw portions 75M are formed at the tip portions of the pair of gear engaging portions 75K.
- Each of the pair of gear engaging portions 75K projects upstream from the gear insertion hole 76B at its tip, and the gear member 76 is attached by engaging the claw portion 75M with the peripheral edge portion of the gear insertion hole 76B (Fig. 9).
- a gear engaging portion 75N having a substantially rectangular parallelepiped shape is formed at the base end portion of the pair of gear engaging portions 75K and outside in the direction facing each other.
- a pair of recesses 76D recessed to match the shape of the pair of gear engaging portions 75N are formed on the downstream side of the gear insertion hole 76B.
- the cam member 75 inserts the pair of gear engaging portions 75K into the gear insertion holes 76B and inserts the pair of gear engaging portions 75N into the pair of recesses 76D.
- the rotation of the cam member 75 can be efficiently transmitted to the gear member 76 .
- the rotational position when the gear member 76 is attached to the cam member 75 is indicated by the gear engaging portion 75N, so that the ease of attachment can be improved.
- the gear member 76 is attached with its downstream part inserted into a through hole 83F provided in the bottom of the main body portion 83B of the damper support member 83.
- a bead portion 83G is annularly formed on the downstream side surface of the bottom portion of the main body portion 83B so as to surround the opening of the through hole 83F.
- the upstream side surface of the case member 74 is formed with a plurality of (for example, four) bead portions 75P. The case member 74 is held by the bottom of the main body 83B and the bead portions 83G and 75P in point contact to reduce the contact area and to be smoothly rotatable with respect to the damper support member 83. As shown in FIG.
- FIG. 21 shows a cross-sectional view taken along the line BB shown in FIG. 2, and FIG. 22 shows a cross-sectional view taken along the line CC.
- the cylindrical portion 73A is indicated by broken lines in FIG. 21 and 22 show a state in which the dial operation knob 21 is set to the position where the damper 19 is opened.
- the position mark 51A of the dial operation knob 21 is located upward (12 o'clock position on the clock) as shown in FIGS.
- the damper 19 gradually tilts and closes the ventilation path 23 by rotating the dial operation knob 21 clockwise from the position shown in FIG.
- the damper 19 assumes the closed position where the ventilation passage 23 is completely closed as shown in FIG.
- the cam member 75 rotates about the cam shaft 75B at a position eccentric to the boss shaft 74F of the boss member 73 .
- the boss pin 73H moves from the first insertion portion 75E to the connecting portion 75G while engaging with the insertion hole 74K and the cam insertion portion 75D due to the difference in the rotation center, rotation radius, and rotation locus.
- FIGS. 25 and 26 show the state where the transmission shaft 65 is rotated by 90 degrees from the positions shown in FIGS. 21 and 22, respectively.
- the boss pin 73H moves inside the insertion hole 74K and reaches the second insertion position 99.
- the boss pin 73H moves within the cam insertion portion 75D and moves from the first insertion portion 75E to the second insertion portion 75F.
- the cam insertion portion 75D rotates to the second insertion position 99, and the second insertion portion 75F overlaps the second insertion position 99 in the front-rear direction.
- the cam member 75 rotates the damper 19 to the closed position via the gear member 76 when the cam insertion portion 75D is positioned as shown in FIG.
- the air passage 23 is closed by the first and second damper plates 81 and 82 (see FIG. 7). Also, the boss pin 73H is in a state of having a gap between it and the end on the second insertion position 99 side in the insertion hole 74K. Also, the boss pin 73H is in a state of having a gap between it and the end on the second insertion portion 75F side in the cam insertion portion 75D.
- FIGS. 27 and 28 show the state where the transmission shaft 65 is rotated by 100 degrees from the positions shown in FIGS. 21 and 22, respectively.
- the boss pin 73H advances in the insertion hole 74K clockwise by 10 degrees.
- the boss pin 73H is in contact with or close to the end on the second insertion position 99 side in the insertion hole 74K.
- the boss pin 73H further advances in the cam insertion portion 75D toward the end on the second insertion portion 75F side.
- the cam insertion portion 75D does not rotate from the closed position of the damper 19 shown in FIG. 25 (the posture is not changed). That is, the cam member 75 does not rotate.
- the region where the boss pin 73H advances in the insertion hole 74K or the cam insertion portion 75D is defined as a surplus region 101 where no torque is applied to the cam member 75 (idling). It works (see FIGS. 25 and 26).
- the cam inserting portion 75D can advance toward the second inserting portion 75F so that the boss pin 73H can move further within the cam inserting portion 75D from the state in which the cam member 75 is arranged at the closed position of the damper 19.
- a redundant area 101 is provided.
- a surplus area 101 that can move toward the second insertion position 99 so that the boss pin 73H can move further in the insertion hole 74K from the state where the insertion hole 74K and the cam member 75 are arranged at the damper 19 closed position. is provided.
- the boss pin 73H can be advanced within the insertion hole 74K and the cam insertion portion 75D without rotating the cam member 75. As shown in FIG.
- the transmission shaft 65 is connected by a joint mechanism to transmit the rotation of the dial operation knob 21 .
- the dial operation knob 21 is operated to move the downstream fin group 15 all the way to the left and to move the upstream fin group 17 all the way up.
- the dial operation knob 21 may be rotated by 90 degrees.
- the boss member 73 rotates more than 90 degrees as shown in FIGS. 27 and 28 even though it is rotated. That is, there is a risk of excessive rotation.
- the damper 19 may come into contact with and interfere with the inner wall of the retainer 11 more than necessary to generate abnormal noise.
- the cam insertion portion 75D moves (rotates) relative to the rotation radius R1 in which the boss pin 73H moves (rotates) according to the rotation of the dial operation knob 21. It is possible to increase the turning radius R2. That is, the cam member 75 can be rotated more than the boss member 73 .
- the cam inserting portion 75D can be made larger than the rotation radius R1 in which the boss pin 73H moves (rotates) according to the rotation of the dial operation knob 21. It is also possible to reduce the radius of rotation R2 of the movement (rotation). That is, the rotation of the cam member 75 can be reduced compared to the boss member 73 . As a result, insufficient rotation or excessive rotation of the cam member 75 can be eliminated, and the damper 19 can be properly closed.
- the boss pin 73H can idle to absorb the surplus amount of rotation. .
- the amount of rotation of boss member 73 up to an angle of 90 degrees or more it is possible to allow the amount of rotation of boss member 73 up to an angle of 90 degrees or more. Also from this, insufficient rotation of the cam member 75 can be eliminated, and the damper 19 can be closed more reliably. In the above description, only the operation of closing the damper 19 has been described. can.
- the downstream fin group 15 and the upstream fin group 17 are examples of fins.
- the dial operation knob 21 is an example of an operation knob.
- the boss pin 73H is an example of a boss protrusion.
- the cam recess 74L is an example of a first recess.
- the boss recess 74D is an example of a second recess.
- the retainer member 85 is an example of a mounting portion.
- the bead portion 85G is an example of a retainer-side bead portion.
- the bead portion 74J is an example of a cover-side bead portion.
- the damper-side gear portion 81B is an example of a first damper-side tooth portion.
- the damper-side gear portion 82B is an example of a second damper-side tooth portion.
- the tooth portion 76A is an example of a cam-side tooth portion.
- the transmission shaft 65 and the dial operation knob 21 and the transmission shaft 65 and the boss member 73 are each connected by a joint mechanism (for example, a universal joint).
- the case member 74 holds the cam shaft 75B at a position displaced from a straight line along the axial direction of the boss shaft 74F in a direction perpendicular to the axial direction of the boss shaft 74F (displacement direction 95). Accordingly, the cam member 75 is rotated by the eccentric cam shaft 75B. According to this, when the dial operation knob 21 is rotated, the rotation is transmitted to the boss member 73 of the damper driving mechanism 71 via the joint mechanism.
- the cam member 75 has a boss pin 73H of the boss member 73 inserted therein, and rotates around the cam shaft 75B as the boss member 73 rotates.
- the cam member 75 tilts the damper drive mechanism 71 between the open position and the closed position as it rotates.
- the cam shaft 75B is arranged on the axis of the boss shaft 74F and the cam member 75 rotates coaxially with the boss member 73, the intersection angle between the axes of the dial operation knob 21 and the transmission shaft 65 is large. , the rotational deviation between the dial operation knob 21 and the cam member 75 increases.
- the case member 74 holds the cam shaft 75B at a position displaced from the boss shaft 74F, and rotates the cam member 75 at an eccentric position according to the rotation of the boss member 73 .
- the cam member 75 rotates about the cam shaft 75 ⁇ /b>B in an eccentric positional relationship with the boss member 73 and also rotates in conjunction with the boss member 73 .
- the difference between the rotation radii R1 and R2 can be changed by adjusting the shapes of the insertion hole 74K and the cam insertion portion 75D, the deviation width 93, and the like. Therefore, the swing amount of the damper 19 can be adjusted, and excessive or insufficient tilting of the damper can be eliminated.
- the boss pin 73H moves in the insertion hole 74K as the boss member 73 rotates about the boss shaft 74F, and moves in the cam insertion portion 75D while engaging with the cam insertion portion 75D. do.
- the boss pin 73H so as to be able to move relative to both the case member 74 and the cam member 75, it is possible to prevent the boss pin 73H from contacting both the case member 74 and the cam member 75 and being restricted in movement. Therefore, in the boss member 73 and the cam member 75 that rotate eccentrically, the rotation of the boss member 73 can be smoothly transmitted to the cam member 75 .
- the insertion hole 74K has an arc-shaped cut around the boss shaft 74F.
- the camshaft 75B is provided between the insertion hole 74K and the boss shaft 74F when viewed from the axial direction of the camshaft 75B.
- the cam insertion portion 75D (cam member 75) can be rotated around the cam shaft 75B arranged between the insertion hole 74K and the boss shaft 74F.
- the cam insertion portion 75D can be rotated in an arcuate locus along the shape of the insertion hole 74K.
- the cam insertion portion 75D includes a first insertion portion 75E into which the boss pin 73H is inserted when the damper 19 is at the open position, and a first insertion portion 75E into which the boss pin 73H is inserted when the damper 19 is at the closed position. It has a second insertion portion 75F. A first distance L1 between the first insertion portion 75E and the cam shaft 75B is longer than a second distance L2 between the second insertion portion 75F and the cam shaft 75B (see FIG. 15). . According to this, the second insertion portion 75F can be arranged at a position closer to the camshaft 75B, and the boss pin 73H can be arranged at a position closer to the camshaft 75B when the damper 19 is in the closed position.
- the cam inserting portion 75D has a connecting portion 75G that connects the first inserting portion 75E and the second inserting portion 75F, and has a bent shape at the connecting portion 75G.
- the bent corner portion 75H of the connecting portion 75G is provided on the opposite side of the second insertion portion 75F with respect to the straight line 97 connecting the cam shaft 75B and the first insertion portion 75E (see FIG. 15). According to this, when the damper 19 is closed, the traveling direction of the boss pin 73H can be moved toward the second insertion portion 75F by the bent corner portion 75H while bringing the boss pin 73H closer to the camshaft 75B.
- the boss pin 73H By inserting the boss pin 73H into the bent second insertion portion 75F, the boss pin 73H moves toward the first insertion portion 75E without operating the dial operation knob 21. You can prevent it from opening unintentionally. Conversely, by inserting the boss pin 73H into the first insertion portion 75E at the open position, it is possible to prevent the once opened damper 19 from automatically closing.
- the cam insertion portion 75D is provided at the closed position side end of the moving path along which the boss pin 73H moves when the damper 19 tilts between the open position and the closed position.
- a surplus area 101 is formed into which the boss pin 73H is inserted.
- the boss pin 73H is rotated. It can be inserted into the surplus area 101 and run idle. Excessive interference between the damper 19 and the retainer 11 and generation of noise can be suppressed.
- the case member 74 has a cam recess 74L having a circular cross-section and accommodating the cam member 75, and a boss recess 74D having a circular cross-section and accommodating the bottom portion 73E of the boss member 73 .
- the bottom 74M of the cam recess 74L is displaced from the bottom 74E of the boss recess 74D along the direction (displacement direction 95) connecting the cam shaft 75B and the boss shaft 74F when viewed from the axial direction of the cam shaft 75B. formed in position.
- the cam recess 74L and the boss recess 74D are arranged in the deviation direction 95 in which the cam shaft 75B and the boss shaft 74F are shifted, and the cam member 75 and the boss member 73 can be accommodated.
- the overall size of the case member 74 can be made as small as possible, for example, an overall elliptical outer shape.
- the retainer 11 also has the boss member 73 attached to the retainer member 85 .
- the boss member 73 has a flange portion 73G sandwiched between the retainer member 85 and the case member 74 in the axial direction of the boss shaft 74F.
- the retainer member 85 has a plurality of bead portions 85G projecting toward the flange portion 73G.
- the case member 74 has a plurality of bead portions 74J projecting toward the flange portion 73G.
- the boss member 73 is rotatably supported with respect to the retainer member 85 and the case member 74 with the flange portion 73G sandwiched from both sides in the axial direction by the bead portions 74J and 85G. Thereby, the contact area between the retainer member 85 and the boss member 73 and between the case member 74 and the boss member 73 can be reduced.
- the boss member 73 can be smoothly rotated with respect to the retainer member 85 and the case member 74 .
- the damper 19 has a first damper plate 81 having a damper-side gear portion 81B and a second damper plate 82 having a damper-side gear portion 82B.
- the cam member 75 has a gear member 76 that meshes with both the damper-side gear portions 81B and 82B to tilt both the first and second damper plates 81 and 82 away from each other to close the ventilation passage 23 .
- the gear member 76 has teeth 76A along the circular outer periphery, and rotates about a straight line along the axial direction of the cam shaft 75B as the cam member 75 rotates.
- the damper-side gear portion 81B is rotatably supported about the damper shaft portions 81A and 82A along the direction perpendicular to the axial direction of the cam shaft 75B (vertical direction in this embodiment), and is supported by the tooth portion 76A. are in agreement.
- the damper-side gear portion 82B meshes with the tooth portion 76A while being rotatably supported about the damper shaft portions 81A and 82A, and extends in a direction along the damper shaft portions 81A and 82A (up and down in this embodiment). direction) on the side opposite to the damper-side gear portion 81B with the gear member 76 interposed therebetween.
- the damper-side gear portions 81B and 82B are formed at the gear member 76 side (downstream side, front side) end portions of the first and second damper plates 81 and 82, respectively. According to this, by providing the damper side gear portions 81B and 82B at the respective end portions of the first and second damper plates 81 and 82, the flat portions of the first and second damper plates 81 and 82 are provided with damper-side gear portions 81B and 82B. It becomes unnecessary to provide a member or the like for connecting with the drive mechanism 71 .
- the plate-shaped downstream fin group 15 is arranged along the longitudinal direction (vertical direction) of the air outlet 13A, and the flat plate-shaped upstream fin group 17 is arranged along the horizontal direction.
- the downstream fin group 15 may be arranged in the horizontal direction
- the upstream fin group 17 may be arranged in the vertical direction.
- the air outlet 13A may have a shape elongated in the left-right direction when viewed from the passenger of the vehicle.
- the boss pin 73H is provided on the boss member 73 and the cam insertion portion 75D is provided on the cam member 75, but the present invention is not limited to this.
- a protrusion such as a pin
- a groove or a through hole for inserting the protrusion may be provided on the boss member 73 side.
- the number, shape, position, etc. of the members of the register 10 in the above embodiment are examples.
- the downstream fin group 15 is not limited to three, and may be one, two, or four or more.
- the register 10 may be configured to include only one of the downstream fin group 15 and the upstream fin group 17 .
- the camshaft 75B does not have to be arranged between the insertion hole 74K and the boss shaft 74F when viewed from the axial direction of the camshaft 75B.
- the bent shape of the cam insertion portion 75D is not limited to the L shape, and may be a shape with an acute angle or an obtuse angle. Also, the cam insertion portion 75D may have an arc shape connecting the first insertion portion 75E and the second insertion portion 75F.
- the boss shaft 74 ⁇ /b>F may be provided in the boss member 73 and the boss bearing hole 73 ⁇ /b>F may be provided in the case member 74 .
- the cam shaft 75B may be provided in the case member 74 and the cam bearing hole 74N may be provided in the cam member 75.
- the joint mechanism of the present application is not limited to a universal joint, and may be another joint mechanism such as a ball joint.
- the boss convex portion of the present application is not limited to a columnar shape such as the boss pin 73H, and may have another shape such as a rectangular parallelepiped shape.
- the first insertion portion 75E may be arranged at a position closer to the cam shaft 75B than the second insertion portion 75F.
- the number, shape, position, etc. of the bead portions 73D, 74J, 85G are examples. For example, five or more bead portions 73D may be provided. Also, a bead portion that makes point contact with the cylindrical portion 73A may be provided on the inner wall of the boss recess portion 74D.
- the register of the present application is not limited to a register for automobiles, and may be a register used for air conditioning or ventilation in a building.
- the mechanism for connecting the damper 19 and the damper driving mechanism 71 is not limited to a gear mechanism such as the gear member 76, but may be a structure using an arm and a groove, a structure using a rack mechanism, or the like.
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Abstract
Description
図3は、レジスタの一部の構成部材(下流フィン群15や上流フィン群17)の分解斜視図を示している。図1~図3に示すように、下流フィン群15は、ベゼル13とリテーナ11の接続部分の内側に配置されている。下流フィン群15は、2つの下流フィン31と、左右方向において2つの下流フィン31の間に配置された下流フィン32を有している。下流フィン32は、後述する取付孔33と規制ピン32Dを除いて下流フィン31と同様の構成となっている。下流フィン31,32は、左右方向において互いに離間した状態で並んで配置されている。下流フィン31は、左右方向において所定の厚みを有し、上下方向に長い略長方形の板状をなしている。下流フィン32は、上下方向の両側を略長方形の板状に形成され、上下方向の中央部に取付孔33が形成されている。下流フィン32は、取付孔33を形成された部分において左右方向の厚みが厚くなっており、下流フィン31側へ膨張した(広がった)形状をなしている。下流フィン31,32は、一対の側壁27に取り付けられた軸受部材35によって下流フィン軸31A,32Aの各々を保持され、リテーナ11に対して回転可能に保持されている。下流フィン31,32は、上下方向に沿った回転軸を中心に回転する。
上流フィン群17は、下流フィン群15の上流側であってリテーナ11内に設けられている。上流フィン群17は、複数の(本実施形態では5つ)の上流フィン39と、補助フィン部材41を有している。5つの上流フィン39及び補助フィン部材41は、上下方向において互いに離間した状態で並んで配置されている。補助フィン部材41の上方には、3つの上流フィン39が配置され、下方には2つの上流フィン39が配置されている。上流フィン39は、上下方向においてに所定の厚みを有し、左右方向に長い略長方形の板状をなしている。補助フィン部材41は、前方から見た場合に、左右方向に長い矩形の筒形状をなし、前後方向に貫通する貫通孔41Aが形成されている。貫通孔41Aは、前後方向に垂直な平面で切断した形状が左右方向に長い略長方形をなしている。上流フィン39及び補助フィン部材41は、一対の側壁27の各々に設けられた軸受部材45によって上流フィン軸39A,41Bの各々を保持され、リテーナ11に対して回転可能に保持されている。上流フィン39及び補助フィン部材41は、左右方向に沿った回転軸を中心に回転する。
図4及び図5に示すように、ダイヤル操作ノブ21は、ダイヤル盤51、ダイヤル部52、ダイヤルカバー55、取付板57、連結軸59等を有している。ダイヤル盤51は、円筒形状のダイヤル部52の前面に取り付けられ、ダイヤル部52とともに回転する。ダイヤル盤51には、ダイヤル操作ノブ21の回転位置を示す位置マーク51Aが設けられている。ダイヤル部52は、円筒形状をなしている。ダイヤル部52の外周面には、ダイヤル操作ノブ21を操作する指の滑りを防止するための加工(例えば、ローレット加工)が施されている。
図2及び図4、図6に示すように、ダンパ19は、第1ダンパプレート81と第2ダンパプレート82を有する。第1及び第2ダンパプレート81,82は、平板状をなしており、閉位置において互いの平面を重ねるようにして配置される(図2参照)。例えば、第1ダンパプレート81には、閉位置において第2ダンパプレート82に面した平面に複数の突起81Dが外周部分に形成されている。この突起81Dは、閉位置において第1及び第2ダンパプレート81,82を点接触させる。
図4に示すように、ダンパ駆動機構71は、下流側から順番にボス部材73、ケース部材74、カム部材75を有している。図8及び図9は、ダンパ駆動機構71をリテーナ部材85に組み付けた状態を示している。ボス部材73及びリテーナ部材85は、図8及び図9に示す状態でダンパ支持部材83の本体部83Bに下流側から挿入される。
次に、ダンパ19の開閉動作について説明する。図21は図2に示すB-B線で切断した断面図を示しており、図22は、C-C線で切断した断面図を示している。尚、部材の相対的な位置関係を示すため、図21に円筒部73Aを破線で示している。また、図21、図22は、ダイヤル操作ノブ21を、ダンパ19を開放する位置とした状態を示している。この状態では、例えば、ダイヤル操作ノブ21の位置マーク51Aは、図1及び図2に示すように上方(時計の12時の位置)となる。ダンパ19は、ダイヤル操作ノブ21が図1に示す位置から時計回り方向へ回転されることで、徐々にダンパ19を傾動させて通風路23を閉じていく。例えば、位置マーク51Aが図1に示す状態から90度だけ時計回り方向に回転させられると、ダンパ19は、図7に示す通風路23を完全に閉じた閉位置となる。
(1)本実施形態のレジスタ10において、伝達シャフト65及びダイヤル操作ノブ21と、伝達シャフト65及びボス部材73とは、各々が継手機構(例えば、自在継手)により連結されている。ケース部材74は、ボス軸74Fの軸方向に沿った直線上からボス軸74Fの軸方向と直行する方向(ずれ方向95)にずれた位置にカム軸75Bを保持し、ボス部材73の回転に応じてカム部材75を偏心したカム軸75Bで回転させる。これによれば、ダイヤル操作ノブ21が回転されると、その回転は、継手機構を介してダンパ駆動機構71のボス部材73に伝達される。カム部材75は、ボス部材73のボスピン73Hを挿入されており、ボス部材73の回転にともなってカム軸75Bを中心に回転する。カム部材75は、回転にともなって開位置と閉位置との間でダンパ駆動機構71を傾動させる。
例えば、上記実施形態では、空気吹出口13Aの長手方向(上下方向)に沿った平板状の下流フィン群15を配置し、左右方向に沿った平板状の上流フィン群17を配置したが、適宜変更可能である。下流フィン群15を左右方向に配置しても良く、上流フィン群17を上下方向に沿って配置しても良い。また、空気吹出口13Aを、車の乗員から見て左右方向に長い形状としても良い。
また、上記実施形態では、ボス部材73にボスピン73Hを設け、カム部材75にカム挿入部75Dを設けたが、これに限らない。例えば、カム部材75側に凸部(ピンなど)を設け、ボス部材73側にその凸部を挿入する溝や貫通孔を設けても良い。
上記実施形態におけるレジスタ10の部材の数、形状、位置等は、一例である。例えば、下流フィン群15は、3枚に限らず、1枚、2枚、あるいは4枚以上でも良い。また、レジスタ10は、下流フィン群15又は上流フィン群17の一方のみを備える構成でも良い。また、カム軸75Bを、カム軸75Bの軸方向から見た場合に、挿入孔74Kとボス軸74Fとの間に配置しなくとも良い。カム挿入部75Dの屈曲形状は、L字に限らず、Lよりも鋭角又は鈍角な形状でも良い。また、カム挿入部75Dは、第1挿入部75Eと第2挿入部75Fと結ぶ円弧形状でも良い。ボス軸74Fをボス部材73に設け、ボス軸受孔73Fをケース部材74に設けても良い。カム軸75Bをケース部材74に設け、カム軸受孔74Nをカム部材75に設けても良い。
本願のボス凸部は、ボスピン73Hのような柱形状に限らず、直方体形状等の他の形状でも良い。
第1挿入部75Eを第2挿入部75Fよりもカム軸75Bに近い位置に配置しても良い。
ビード部73D,74J,85Gの数、形状、位置等は一例である。例えば、ビード部73Dを5つ以上設けても良い。また、ボス用凹部74Dの内壁に、円筒部73Aと点接触するビード部を設けても良い。
本願のレジスタは、自動車用のレジスタに限らず、建物の空調や送風に用いられるレジスタでも良い。
ダンパ19とダンパ駆動機構71とを連結する機構は、ギア部材76などのギア機構に限らず、アームと溝を用いる構造やラック機構を用いる構造などでも良い。
Claims (9)
- 通風路を開く開位置と通風路を閉じる閉位置との間で傾動するダンパに対し、操作ノブから伝達シャフトを介して伝達される前記操作ノブの回転の方向を変更して前記ダンパに伝達し前記ダンパを前記開位置と前記閉位置との間で傾動させるダンパ駆動機構を備え、
前記ダンパ駆動機構は、
前記操作ノブと前記伝達シャフトを介して連結されるボス部材と、
ボス軸を中心に前記ボス部材を回転可能に保持するケース部材と、
前記ケース部材によりカム軸を中心に回転可能に保持され、前記ボス部材に連結され前記ボス部材の回転に応じて回転して前記ダンパを傾動させるカム部材と、
を備え、
前記伝達シャフト及び前記操作ノブと、前記伝達シャフト及び前記ボス部材とは、
各々が継手機構により連結され、
前記ケース部材は、
前記ボス軸の軸方向に沿った直線上から前記ボス軸の軸方向と直行する方向にずれた位置に前記カム軸を保持し、前記ボス部材の回転に応じて前記カム部材を偏心した前記カム軸で回転させる、レジスタ。 - 前記ボス部材は、
ボス凸部を有し、
前記ケース部材は、
前記ボス凸部を挿入される挿入孔を有し、
前記カム部材は、
前記挿入孔を介して前記ボス凸部を挿入されるカム挿入部を有し、
前記ボス凸部は、
前記ボス部材が前記ボス軸を中心に回転するのにともなって前記挿入孔内を移動しつつ、前記カム挿入部に係合しながら前記カム挿入部内を移動する、請求項1に記載のレジスタ。 - 前記挿入孔は、
前記ボス軸を中心に円弧状に切りかかれた形状をなし、
前記カム軸は、
前記カム軸の軸方向から見た場合に、前記挿入孔と前記ボス軸との間に設けられる、請求項2に記載のレジスタ。 - 前記カム挿入部は、
前記ダンパを前記開位置とした場合に、前記ボス凸部が挿入される第1挿入部と、
前記ダンパを前記閉位置とした場合に、前記ボス凸部が挿入される第2挿入部と、
を有し、
前記第1挿入部と前記カム軸との間の第1距離が、
前記第2挿入部と前記カム軸との間の第2距離に比べて長い、請求項3に記載のレジスタ。 - 前記カム挿入部は、
前記第1挿入部と前記第2挿入部とを連結する連結部を有し、前記連結部で屈曲した形状をなし、
前記連結部の屈曲した角部は、
前記カム軸と前記第1挿入部とを結ぶ直線に対して前記第2挿入部とは反対側に設けられる、請求項4に記載のレジスタ。 - 前記レジスタから吹き出す空気の送風方向を変更するフィンをさらに備え、
前記フィンは、
前記操作ノブに対する操作に応じて回転し、
前記カム挿入部は、
前記ダンパが前記開位置及び前記閉位置の間で傾動する際に前記ボス凸部が移動する移動経路の前記閉位置側の端部に、前記ダンパが前記閉位置となっても前記操作ノブが回転した場合に、前記ボス凸部が挿入される余剰領域が形成される、請求項2から請求項5の何れか1項に記載のレジスタ。 - 前記ボス部材は、
前記ボス凸部を有する円形の底部を有し、
前記カム部材は、
円板形状をなし、
前記ケース部材は、
前記カム部材を収容し断面形状が円形の第1凹部と、
前記ボス部材の前記底部を収容し断面形状が円形の第2凹部と、
を有し、
前記第1凹部の底部は、
前記カム軸の軸方向から見た場合に、前記カム軸と前記ボス軸とを結ぶ方向に沿って前記第2凹部の底部からずれた位置に形成されている、請求項3から請求項6の何れか1項に記載のレジスタ。 - 前記通風路を有し、前記ボス部材を取り付けられ取付部を有するリテーナをさらに備え、
前記ボス部材は、
前記ボス軸の軸方向において前記取付部と前記ケース部材とで挟まれるフランジ部を有し、
前記取付部は、
前記フランジ部に向かって突出する複数のリテーナ側ビード部を有し、
前記ケース部材は、
前記フランジ部に向かって突出する複数のカバー側ビード部を有し、
前記ボス部材は、
複数の前記リテーナ側ビード部と、複数の前記カバー側ビード部とで前記ボス軸の軸方向の両側から前記フランジ部を挟まれ前記取付部及び前記ケース部材に対して回転可能に支持される、請求項1から請求項7の何れか1項に記載のレジスタ。 - 前記ダンパは、
第1ダンパ側歯部を有する第1ダンパプレートと、
第2ダンパ側歯部を有する第2ダンパプレートと、
を有し、
前記カム部材は、
前記第1ダンパ側歯部及び前記第2ダンパ側歯部の両方と歯合して前記第1ダンパプレート及び前記第2ダンパプレートを互いに離間する方向へ傾動させ前記通風路を閉じるギア部材を有し、
前記ギア部材は、
円形の外周に沿ってカム側歯部を有し、前記カム部材の回転にともなって前記カム軸の軸方向に沿った直線を中心に回転し、
前記第1ダンパ側歯部は、
前記カム軸の軸方向と直交する方向に沿ったダンパ軸を中心に回転可能に支持された状態で前記カム側歯部に歯合し、
前記第2ダンパ側歯部は、
前記ダンパ軸を中心に回転可能に支持された状態で前記カム側歯部に歯合し、且つ、前記ダンパ軸に沿った方向において前記ギア部材を間に挟んで前記第1ダンパ側歯部とは反対側に設けられ、
前記第1ダンパ側歯部は、
前記第1ダンパプレートにおける前記ギア部材側の端部に形成され、
前記第2ダンパ側歯部は、
前記第2ダンパプレートにおける前記ギア部材側の端部に形成される、請求項1から請求項8の何れか1項に記載のレジスタ。
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