JP2017094782A - Wind direction adjusting device of air conditioner for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wind direction adjusting device of an air conditioner for a vehicle which can suppress a variation of operation torque with respect to each fin even if a variation occurs in a length dimension of the fin.SOLUTION: A ventilator 1 comprises a center-side fin main body 53 which extends to left and right directions, and has shaft parts 57, 59 at both ends, and a front-side fin holding member 11 and a spacer 13 which hold the shaft parts 57, 59. The center-side fin main body 53 is rotatably held to the front-side fin holding member 11 and the spacer 13 with the shaft part 57 as a rotation center. In the shaft parts 57, 59 at both the ends, the one-side shaft part 57 is held to the front fin holding member 11 in a state that the shaft part 57 presses the front-side fin holding member 11 to the outside of an axial direction, and the other side shaft part 59 is held to the spacer 13 so as to be turntable.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a wind direction adjusting device for a vehicle air conditioner.

  2. Description of the Related Art Conventionally, there is an air blower portion of a vehicle air conditioner such as an automobile ventilator in which a wind direction adjusting device is disposed (see, for example, Patent Document 1).

  The wind direction adjusting device in Patent Document 1 is provided with fins extending in the vertical direction and a lower spacer having a support piece configured to be elastically deformable in the vertical direction. Shaft portions project from the upper and lower ends of the fins. A fitting hole is formed in the upper spacer, and the shaft portion at the upper end of the fin is inserted into the fitting hole.

  A fitting hole into which the shaft portion at the lower end of the fin is inserted is formed in the support piece of the lower spacer, and the shaft portion at the lower end of the fin is inserted into the fitting hole. As a result, since the support piece elastically presses the fin toward the upper side, the fin rotates in the left-right direction with the fin elastically held in the vertical direction between the upper spacer and the lower spacer support piece. Held possible.

Japanese Patent No. 5500909

  However, the length of the fin in the vertical direction may vary depending on the manufacturing conditions. For example, when the fin length is formed to be shorter than a specified value, in the wind direction adjusting device in Patent Document 1, the vertical holding force acting on the fin is too small, and the operator rotates the fin. The operating torque is too small.

  On the other hand, when the length dimension of the fin is formed longer than the specified value, in the wind direction adjusting device in Patent Document 1, the vertical clamping force acting on the fin is too large, and the operation torque is too large. End up.

  As described above, there is a problem that the operating torque varies due to variations in the length of the fin.

  Therefore, in order to solve the above-described problems, the present invention provides a wind direction adjusting device for a vehicle air conditioner that can suppress fluctuations in operating torque even if variations in the length of fins occur. is there.

  In order to solve the above-described problems, a wind direction adjusting device for a vehicle air conditioner according to the present invention includes fins extending in the longitudinal direction and having shaft portions at both ends, and holding portions that hold these shaft portions. And a wind direction adjusting device for a vehicle air conditioner in which the fin is rotatably held with respect to the holding portion with the shaft portion as a rotation center. Regarding the shaft portions at both ends, the shaft portion on one end side is held by the holding portion in a state where the holding portion is pressed outward in the axial direction, and the shaft portion on the other end side is rotatably held by the holding portion. Retained.

  The length dimension along the longitudinal direction of the fin varies depending on manufacturing conditions and the like, and the dimension variation becomes particularly large when the length dimension is long.

  Here, in the present invention, only one end side of the shaft portions at both ends of the fin presses the holding portion outward in the axial direction, and the shaft portion on the other end side is rotatably held by the holding portion.

  Therefore, even when the length of the fin is formed slightly longer or shorter than the prescribed dimension, the shaft portion on one end side is securely held in elastic contact with the holding portion. For this reason, even when the length dimensions of the fins vary, the variation in rotational torque when the fins are rotated can be reduced and maintained as constant as possible.

It is the perspective view which looked at the ventilator which concerns on the 1st Embodiment of this invention from diagonally upward. It is a disassembled perspective view of the ventilator of FIG. It is the perspective view which expanded the front side fin of FIG. (A) is a perspective view which shows the holding member for front side fins of FIG. 2, (b) is the perspective view which expanded the principal part of (a). It is sectional drawing by the AA line of FIG.4 (b). It is a perspective view which shows the state which assembled | attached the front side fin to the holding member for front side fins. (A) is sectional drawing by the BB line of FIG. 6, (b) is sectional drawing to which the principal part of (a) was expanded. It is the perspective view which looked at the state which assembled | attached the front side fin to the connection plate from the left side of the vehicle width direction. It is a disassembled perspective view which shows the state which assemble | attaches the front side fin which concerns on 2nd Embodiment to the holding member for front side fins. It is a perspective view which shows the state which assembled | attached the front side fin to the holding member for front side fins, and the spacer. It is sectional drawing by CC line of FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the right side in the vehicle width direction is RH, the left side in the vehicle width direction is LH, the front side of the vehicle is FR, and the rear side of the vehicle is RR.

[First embodiment]
First, a first embodiment of the present invention will be described.

  As shown in FIGS. 1 to 3, the ventilator 1 (wind direction adjusting device) according to the first embodiment includes an outer case body 3, an inner case body 5 accommodated inside the outer case body 3, and an inner side. A rear fin 7 and a front fin 9 disposed inside the case body 5, a front fin holding member 11 and a spacer 13 for holding the left and right ends of the front fin 9 in the left and right direction (longitudinal direction and axial direction); .

  The outer case body 3 includes an upper surface wall 15, a pair of left and right side walls 17 and 19 that extend downward from both left and right ends of the upper surface wall 15, and a bottom wall 21 that connects the left and right ends of the pair of side walls 17 and 19. The rear wall 23 is bent at the rear end of the top wall 15, the side walls 17 and 19, and the bottom wall 21 and extends inward.

  The inner case body 5 includes an upper wall 31, a pair of left and right side walls 33, 35 extending downward from the left and right ends of the upper wall 31, and a bottom wall 37 connecting the left and right ends of the pair of side walls 33, 35. Composed. A plurality of shaft holes 39 are formed in the bottom wall 37 at regular intervals along the left-right direction.

  The rear fin 7 is supported by a plurality of fin main bodies 43 formed in a plate shape on a connection plate 41 extending in the left-right direction, and a connection shaft (not shown) formed in the plurality of fin main bodies 43. In addition, support shafts 45 and 47 provided at the upper and lower ends are inserted into shaft holes 39 in the upper wall 31 and the bottom wall 37 of the inner case body 5, and the fin body 43 rotates left and right around the support shafts 45 and 47. It is configured to be movable.

  The front fin 9 has three fin bodies 51, 53, 55 arranged in the vertical direction at predetermined intervals, and includes an upper fin body 51, a central fin body 53 (fin), a lower fin body 55, Consists of The three fin bodies 51, 53, and 55 are provided with shaft portions at both left and right ends, the shaft portion 57 on the right side of the vehicle is held by the front fin holding member 11, and the locking projection of the shaft portion 59 on the left side of the vehicle 83 is inserted and held in the insertion hole 10 of the spacer 13.

  As shown in FIG. 8 to be described later, connection plate support protrusions 61 are provided on the left side of the three fin bodies 51, 53, and 55, and these connection plate support protrusions 61 are connected to the connection plate 63. Is inserted into the insertion hole 65. Here, an operation knob 67 is attached to the central fin body 53, and the three fin bodies 51, 53, and 55 are rotated in the vertical direction by gripping and moving the operation knob 67 up and down.

  As shown in FIG. 3, the center-side fin main body 53 (fin) includes a plate-like main body portion 71 extending in the longitudinal direction that is the left-right direction, and a pair of left and right shaft portions 57 and 59 provided at both left and right ends. Have. A shaft portion 57 on the right side (one end side) of the vehicle includes a root portion 73 extending rightward from the main body portion 71, a columnar small diameter portion 75 having a diameter smaller than that of the root portion 73, and a right side from the small diameter portion 75. And a columnar large-diameter portion 77 extending in the direction (outside in the axial direction) and having a diameter dimension larger than that of the small-diameter portion 75. The shaft portion 59 on the left side (the other end side) of the vehicle includes a root portion 81 extending in the left direction from the main body portion 71 and a columnar locking protrusion 83 having a diameter smaller than that of the root portion 81. Further, on the vehicle front side of the shaft portion 59, a connecting plate support protrusion 61 protrudes leftward.

  As shown in FIGS. 4 to 7, the front fin holding member 11 (holding portion) includes an upper fin main body support portion 85 disposed at the upper portion and a central fin main body disposed at the center portion in the vertical direction. A support portion 87 and a lower fin body support portion 89 disposed in the lower portion are provided.

  An insertion hole 91 is formed in the upper fin body support portion 85, and the locking protrusion 52 of the upper fin body 51 is inserted into the insertion hole 91. An insertion hole 90 is formed in the lower fin body support portion 89, and the locking protrusion 54 of the lower fin body 55 is inserted into the insertion hole 90.

  The central fin body support 87 includes an inner wall 93 disposed on the center side in the left-right direction, an outer wall 95 disposed on the outer side in the left-right direction of the inner wall 93 and facing the inner wall 93, The upper connecting wall 97 that connects the upper ends of the walls 93 and the lower connecting wall 99 that connects the lower ends of the inner side walls 93 are formed in a closed cross-sectional structure. A slit 101 extending in the vertical direction and penetrating in the horizontal direction of the outer wall 95 is formed on the side of the outer wall 95. The inner surface on the right side of the inner wall 93 is formed on the inner holding surface 103, and a notch 105 is formed at the center in the vertical direction of the inner wall 93. As shown in FIG. 5, the notch 105 is formed in a semicircular shape, and the vertical height of the inlet 107 is small. On the inner holding surface 103 of the inner wall 93, the upper rib 109 (convex portion), the central rib 111 (convex portion), and the lower rib 113 (convex portion) are front and rear at the facing portions facing the large-diameter portion 77, respectively. Extends along the direction. These three ribs 109, 111, 113 have elasticity. The small-diameter portion 75 of the central fin body 53 (fin) is fitted into the notch portion 105. The outer side of the inner wall 93 in the left-right direction is formed on the inner holding surface 103, the protruding portion 121 protrudes on the inner side of the outer wall 95 in the left-right direction, and the top surface of the protruding portion 121 is formed on the outer holding surface 123. Has been. The protrusion 121 and the outer wall 95 have elasticity. The inner holding surface 103 and the outer holding surface 123 are opposed to each other while being separated in the left-right direction.

  An inner side surface 125 is formed on the central side in the left-right direction of the large-diameter portion 77 of the shaft portion 57 of the central fin body 53, and the inner side surface 125 is in elastic contact with the three ribs 109, 111, 113. An outer surface 127 is formed on the outer side in the longitudinal direction of the large-diameter portion 77 of the shaft portion 57 of the central fin body 53, and the outer surface 127 is in elastic contact with the outer holding surface 123 of the protruding portion 121. As described above, with respect to the shaft portions 57 and 59 at both ends of the central fin body 53, the shaft portion 57 on one end side presses the front fin holding member 11 (holding portion) outward in the axial direction. Is held by the front fin holding member 11 (holding portion), and the shaft portion 59 on the other end side is rotatably held by the spacer 13. The large-diameter portion 77 is sandwiched between the inner holding surface 103 and the outer holding surface 123 in the left-right direction (axial direction).

Below, the effect by 1st Embodiment is demonstrated.
(1) A central fin body 53 (fin) extending in the left-right direction (longitudinal direction) and having shaft portions 57, 59 at both ends, a front fin holding member 11 and a spacer 13 for holding the shaft portions 57, 59 (Ventilator), and the ventilator 1 (wind direction adjusting device) in which the central fin body 53 is rotatably held with respect to the front fin holding member 11 and the spacer 13 with the shaft portion 57 as a rotation center. With respect to the shaft portions at both ends, the shaft portion 57 on one end side is held by the front fin holding member 11 in a state where the front fin holding member 11 is pressed outward in the axial direction, and the other end side. The shaft portion 59 is rotatably held by the spacer 13.

  The length dimension along the longitudinal direction of the central fin body 53 varies depending on manufacturing conditions and the like, and when the length dimension is long, the dimension variation is particularly large. Here, in this embodiment, only one end side of the shaft portions 57 and 59 at both ends of the central fin body 53 presses the front fin holding member 11 outward in the axial direction, and the shaft portion 59 on the other end side. Is rotatably held by the spacer 13. Therefore, for example, even when the length of the central fin body 53 is formed slightly longer or shorter than the prescribed dimension, the shaft portion 57 on one end side is securely held in elastic contact with the front fin holding member 11. The For this reason, even when the length of the central fin body 53 varies, the variation in rotational torque when the central fin body 53 is rotated is reduced as much as possible for each central fin body 53. Can be maintained.

  (2) A shaft portion 57 on one end side of the central fin body 53 (fin) has a small diameter portion 75 and a large diameter extending from the small diameter portion 75 to the outside in the axial direction and larger in diameter than the small diameter portion 75. In the front fin holding member 11 (holding portion), an inner holding surface 103 and an outer holding surface 123 spaced apart from the inner holding surface 103 in the axial direction are provided. Are arranged opposite to each other, and at least one of the inner holding surface 103 and the outer holding surface 123 is formed of an elastic body, and the large-diameter portion 77 on one end side of the central fin body 53 is used for the front fin. The inner holding surface 103 and the outer holding surface 123 of the holding member 11 (holding portion) are held in the axial direction.

  The large-diameter portion 77 of the shaft portion 57 on one end side of the central fin body 53 is pressed and clamped between the inner holding surface 103 and the outer holding surface 123 of the front fin holding member 11 in the axial direction. Therefore, for example, even when the length of the central fin body 53 varies somewhat, the shaft portion 57 on one end side can be securely elastically held by the holding member 11 for the front fin. This has the effect of further reducing fluctuations in rotational torque.

  (3) An upper rib 109 (protruding portion) that protrudes in the axial direction is formed on an opposing portion of the inner holding surface 103 of the front fin holding member 11 (holding portion) facing the large-diameter portion 77 of the central fin body 53. It has the center side rib 111 (convex part) and the lower side rib 113 (convex part).

  When the axial distance between the ribs 109, 111, 113 of the inner holding surface 103 of the front fin holding member 11 (holding portion) and the outer holding surface 123 is too smaller than the thickness of the large-diameter portion 77 of the central fin body 53. Since it is only necessary to reduce the height of the ribs 109, 111, 113 by cutting the tops of the ribs 109, 111, 113, it is possible to easily adjust the clamping force of the large-diameter portion 77 of the central fin body 53.

  A slit 101 extending in the vertical direction and penetrating in the horizontal direction of the outer wall 95 is formed on the side of the outer wall 95. Accordingly, since the rigidity of the outer wall 95 is lower than in the case where the slit 101 is not formed, the pressing force for pressing the shaft portion 57 is reduced, and an appropriate torque when the central fin body 53 is rotated. Can be obtained.

[Second Embodiment]
Next, a second embodiment of the present invention will be described. The same components as those in the first embodiment described above are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIG. 9, the center side fin main body 253 (fin) which concerns on 2nd Embodiment is provided in the main body part 71 arrange | positioned in the center part of the left-right direction, and the right side (one end side) of the main body part 71. A shaft portion 257 and a shaft portion 59 provided on the left side (the other end side).

  The right shaft portion 257 includes a root portion 273 extending from the main body portion 71 to the right side, an insertion portion 274 extending from the root portion 273 to the right side, a locking portion 275 extending from the insertion portion 274 to the right side, A locking groove 276 formed on the right side of the locking portion and a tip end portion 278 extending to the right side of the locking groove 276 are configured. The insertion portion 274, the locking portion 275, and the tip portion 278 are formed with the same diameter. The diameter of the locking groove 276 is smaller than the diameters of the insertion portion 274, the locking portion 275, and the tip portion 278.

  The left shaft portion 59 and the connecting plate support protrusion 61 are formed in the same shape as in the first embodiment. The front fin holding member 211 (holding portion) disposed on the right side includes an upper fin body support portion 85 disposed in the upper portion, a center fin body support portion 287 disposed in the center portion in the vertical direction, A lower fin body support portion 89 disposed in the lower portion.

  An insertion hole 91 is formed in the upper fin body support portion 85, and a locking projection of the upper fin body (not shown) is inserted into the insertion hole 91. Similarly, an insertion hole 90 is formed in the lower fin body support portion 89, and a locking protrusion of the lower fin body (not shown) is inserted into the insertion hole 90.

  The push nut 280 (locking member) made of an elastic body has a nut body portion 281 formed in a cylindrical shape with a large outer diameter, and an outer portion that is integrally formed on the right side of the nut body portion 281 and is smaller than the nut body portion 281. And a projection 282 formed in a radial dimension. The push nut 280 is formed with an insertion hole 283 penetrating in the axial direction.

  As shown in FIG. 10, a locking projection 83 provided at the tip of the shaft portion 59 is inserted into the insertion hole 10 of the spacer 13 disposed on the left side and is held rotatably.

  As shown in FIG. 11, in the right shaft portion 257, the insertion portion 274 is inserted into the insertion hole 205 of the front fin holding member 211, and the locking portion 275 and the locking groove 276 are inserted into the insertion hole 283 of the push nut 280. Has been inserted. An inward protruding portion 284 that protrudes inward is formed on the inner peripheral side of the protruding portion 282, and the inward protruding portion 284 is locked in the locking groove 276. The front fin holding member 211 (holding portion) is elastically held between the push nut 280 (locking member) and the corner portion 272 at the outer end in the axial direction of the root portion 273.

Below, the effect by 2nd Embodiment is demonstrated.
(1) A shaft portion 257 on one end side of the center-side fin main body 253 (fin) has a root portion 273 connected to the center-side fin main body 253 and a root portion extending from the root portion 273 outward in the axial direction. The diameter dimension is smaller than 273, the insertion portion 274 is inserted into the insertion hole 205 of the front fin holding member 11 (holding portion), and extends from the insertion portion 274 to the outside in the axial direction. And a locking portion 275 that is locked to a push nut 280 (locking member) made of an elastic body. By holding the front fin holding member 211 (holding portion) elastically between the push nut 280 (locking member) and the corner portion 272 of the axially outer end of the base portion 273, the right side (one end side) The shaft portion 257 is configured to press the front fin holding member 211 (holding portion) outward in the axial direction.

  The front fin holding member 211 is elastically sandwiched between the push nut 280 and the corner 272 at the outer end of the base portion 273 in the axial direction, so that the shaft portion 257 on one end side holds the front fin holding member 211 in the axial direction. Therefore, the variation in rotational torque when the central fin body 253 is rotated can be further reduced.

  In addition, this invention is not limited to embodiment mentioned above, A various change and deformation | transformation are possible based on the technical idea of this invention. For example, in the first embodiment, among the upper fin main body 51, the central fin main body 53, and the lower fin main body 55, a small diameter portion 75 and a large diameter portion 77 are provided on the shaft portion 57 of the central fin main body 53, Although the diameter portion 77 is sandwiched, a small diameter portion and a large diameter portion may be provided on the upper fin body 51 and the lower fin body 55, and the large diameter portion may be sandwiched.

1 Ventilator (wind direction adjusting device)
11 Front fin holding member (holding part)
13 Spacer 13 (Holding part)
53 Central fin body (fin)
57, 59 Shaft portion 75 Small diameter portion 77 Large diameter portion 103 Inner holding surface 123 Outer holding surface 109 Upper rib (convex portion)
111 central rib (convex)
113 Lower rib (convex)
205 Insertion hole 211 Front fin holding member (holding part)
253 Central fin body (fin)
257 Shaft portion 273 Root portion 274 Insertion portion 275 Locking portion 280 Push nut (locking member)

Claims (4)

A vehicle that includes a fin extending in the longitudinal direction and having shaft portions at both ends and a holding portion that holds these shaft portions, and the fin is rotatably held with respect to the holding portion with the shaft portion as a rotation center A wind direction adjusting device for an air conditioner for a vehicle,
For the shafts at both ends,
The shaft portion on one end side is held by the holding portion in a state where the holding portion is pressed outward in the axial direction,
The shaft portion on the other end side is rotatably held by the holding portion. A wind direction adjusting device for a vehicle air conditioner. It is a wind direction adjustment apparatus of the vehicle air conditioner of Claim 1, Comprising:
The shaft part on one end side of the fin has a small diameter part and a large diameter part extending from the small diameter part to the outside in the axial direction and having a larger diameter than the small diameter part,
In the holding portion, an inner holding surface and an outer holding surface arranged to be spaced apart from each other in the axial direction of the inner holding surface are opposed to each other, and at least one of the inner holding surface and the outer holding surface is Formed of elastic material,
The large-diameter portion on one end side of the fin is sandwiched in the axial direction between an inner holding surface and an outer holding surface of the holding portion. A wind direction adjusting device for a vehicle air conditioner. A wind direction adjusting device for a vehicle air conditioner according to claim 2,
A wind direction adjusting device for an air conditioner for a vehicle, characterized in that an opposing portion of the inner holding surface of the holding portion facing the large diameter portion of the fin has a protruding portion protruding in the axial direction. It is a wind direction adjustment apparatus of the vehicle air conditioner of Claim 1, Comprising:
The shaft portion on one end side of the fin has a root portion connected to the fin, and extends outward from the root portion in the axial direction and has a smaller diameter than the root portion, and the insertion hole of the holding portion An insertion portion that is inserted into the insertion portion, and an engagement portion that extends outward in the axial direction from the insertion portion and is engaged with an engagement member made of an elastic body,
The holding portion is elastically sandwiched between the locking member and a corner portion of the base portion in the axial direction, so that the shaft portion on the one end side presses the holding portion outward in the axial direction. A wind direction adjusting device for an air conditioner for a vehicle, which is characterized by the above.

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