JP7106864B2 - shutter device - Google Patents

Description

The present invention relates to a shutter device.

Patent Literature 1 describes a shutter device that includes a shutter (opening/closing body) that opens and closes an air inlet opening for introducing running wind into an engine room. In the shutter device, the shutters are arranged vertically in pairs. When opening the air inlet opening, the shutter device rotates the pair of upper and lower shutters in different directions to open both the upper and lower shutters.

EP-A-3109083

However, the above-described shutter device has separate structures for driving the upper and lower shutters, that is, an actuator having a rotating shaft and a crank mechanism for transmitting the power of the rotating shaft to the shutters. Therefore, in the shutter device as described above, the arrangement space for the configuration for driving the shutter tends to be large. SUMMARY OF THE INVENTION It is an object of the present invention to provide a shutter device capable of saving a space for a configuration related to driving an opening/closing member.

Means for solving the above problems and their effects will be described below.
A shutter device for solving the above problems is a shutter device that opens and closes an opening for introducing air into an engine room of a vehicle based on driving of an actuator, the shutter device rotating about a first rotation axis, A first opening/closing body that opens and closes an opening and a second opening/closing body that rotates about a second rotation axis extending in the same direction as the first rotation axis and opens/closes the opening together with the first opening/closing body. and a transmission mechanism for transmitting power of a single drive shaft of the actuator to the first opening/closing body and the second opening/closing body, wherein the actuator rotates by a motor. Having one drive shaft, the first opening/closing body and the second opening/closing body rotate in mutually different directions so as to open on both sides, thereby moving the opening from a closed position that closes the opening. The drive shaft of the actuator extends in the same direction as the first rotation axis and the second rotation axis, and the transmission mechanism includes the first opening/closing body and the second rotation axis. Among the second opening/closing bodies, one opening/closing body transmits power of the drive shaft to the one opening/closing body so as to rotate in the same direction as the drive shaft, and the other opening/closing body rotates in the same direction as the drive shaft. The power of the drive shaft is transmitted to the other opening/closing body so as to rotate in the opposite direction, and the transmission mechanism is a first opening/closing body that transmits the power of the drive shaft to the first opening/closing body. and a second link mechanism for transmitting power of the drive shaft to the second opening/closing body, the first opening/closing body having a first shaft portion and the second opening/closing body. The opening/closing body has a second shaft, a first driven link is provided at the tip of the first shaft, and a second driven link is provided at the tip of the second shaft. The first link mechanism includes a first drive link coupled to rotate together with the drive shaft and extending in a direction orthogonal to the drive shaft, the first driven link, and one end. a first intermediate link that is relatively rotatably connected to the first drive link at one end and relatively rotatably connected to the first driven link at the other end; The second link mechanism includes a second drive link connected to rotate together with the drive shaft and extending in a direction orthogonal to the drive shaft, the second driven link, and the second drive at one end. a second intermediate link that is relatively rotatably connected to the link and relatively rotatably connected to the second driven link on the other end side; 2 link machine The structure is offset along the axial direction of the drive shaft .

According to the above configuration, the shutter device rotates the first opening/closing body about the first rotation axis by rotating the single drive shaft of the actuator, and rotates the second opening/closing body to the first opening/closing position. It can be pivoted about a second pivot axis in a different direction than the body. That is, the shutter device can open and close the opening with the first opening and closing bodies and the second opening and closing bodies without requiring the same number of actuators and drive shafts as the opening and closing bodies. Therefore, in the shutter device, it is possible to save the space of the configuration related to the driving of the opening/closing body including the actuator.

If the drive shaft of the actuator extends in a direction different from that of the first pivot axis and the second pivot axis, it is necessary to select a transmission mechanism capable of changing the direction of the rotation axis of the drive shaft. In this respect, according to the above configuration, the transmission mechanism does not need to change the rotation axis direction of the drive shaft when transmitting the power of the drive shaft to the first opening/closing body and the second opening/closing body. Further, the transmission mechanism does not need to change the rotation direction when transmitting the power of the drive shaft to one of the first opening/closing body and the second opening/closing body. Therefore, the shutter device can prevent the structure of the transmission mechanism from becoming complicated.

For example, when the transmission mechanism is composed of a plurality of gears, the transmission mechanism may not operate smoothly if foreign matter such as sand entering through the opening adheres to the gears. In this regard, in the above configuration, since the transmission mechanism of the shutter device is composed of the first link mechanism and the second link mechanism, it is possible to reduce the influence of foreign matter entering through the opening.
In the above shutter device, the first link mechanism includes the first drive link and the first driven link that swing in opposite directions, and the second link mechanism includes the second link mechanism. and the second driven link swing in the same direction.
In the above shutter device, the first drive link and the second drive link extend in different directions.

A direction in which the first opening/closing body rotates from the closed position toward the open position is defined as a first opening direction, and the second opening/closing body rotates from the closed position toward the open position. When the opening direction is defined as the second opening direction, in the above shutter device, the first opening/closing body and the second opening/closing body engage with each other when positioned at the closed position. and a second engaging portion, respectively, wherein the first engaging portion and the second engaging portion are engaged when the first opening/closing body and the second opening/closing body are positioned at the closed position. Preferably, the torque acting in the second opening direction of the second opening/closing body is transmitted as the torque acting in the first opening direction of the first opening/closing body.

When the shutter device is attached to the vehicle so that the first opening/closing body is positioned vertically above the second opening/closing body, the first opening/closing body and the second opening/closing body are arranged so as to open vertically on both sides. Become. In this case, the first opening/closing body rotates in the first opening direction against gravity, and the second opening/closing body rotates in the second opening direction according to gravity. As a result, when the power of the drive shaft of the actuator is turned off with the first opening/closing member and the second opening/closing member positioned at the closed position, the second opening/closing member rotates in the second opening direction due to its own weight. may try to

In this respect, in the shutter device configured as described above, when the first opening/closing body and the second opening/closing body are positioned at the closed position, the first engaging portion and the second engaging portion The torque acting in the second opening direction is transmitted as the torque acting in the first opening direction of the first opening/closing body. Therefore, it becomes difficult for the second opening/closing body to rotate in the second opening direction. Therefore, the shutter device can easily hold the second opening/closing body in the closed position when the first opening/closing body and the second opening/closing body are positioned in the closed position.

In the above shutter device, when the direction in which the first rotation axis and the second rotation axis extend is the width direction, the first opening and closing body and the second opening and closing body are positioned at the closed position. In this case, it is preferable that the tip of the first opening/closing body and the tip of the second opening/closing body overlap in the width direction.

According to the above configuration, in the shutter device, when the first opening/closing body and the second opening/closing body are positioned at the closed position, a gap is less likely to occur between the first opening/closing body and the second opening/closing body. Therefore, when the first opening/closing body and the second opening/closing body are positioned at the closed position, the shutter device can further suppress the inflow of running wind into the engine room.

In the above shutter device, when the first opening/closing body and the second opening/closing body are positioned at the closed position, it is preferable that the tip of the second opening/closing body is positioned behind the first opening/closing body. .

When the shutter device is attached to the vehicle so that the first opening/closing body is positioned vertically above the second opening/closing body, the first opening/closing body and the second opening/closing body will open vertically on both sides. . In this regard, in the shutter device having the above configuration, when the second opening/closing body tries to rotate from the closed position to the open position due to its own weight, the tip of the second opening/closing body tends to come into contact with the first opening/closing body. . Therefore, when the first opening/closing body and the second opening/closing body are positioned at the closed position, the shutter device closes the second opening/closing body even when the power of the drive shaft of the actuator is turned off. Easy to keep in place.

In the above shutter device, when the direction in which the first rotation axis and the second rotation axis extend is taken as the width direction, the first end of the first opening/closing body and the second opening/closing body in the width direction a first frame rotatably supporting a first end in the width direction of the body; a second end in the width direction of the first opening/closing body; a second end in the width direction of the second opening/closing body; a shutter frame having a second frame that rotatably supports an end thereof; and a third frame that connects the first frame and the second frame in the width direction; preferably has a grid-like grill when viewed from the front.

According to the above configuration, the shutter frame not only supports the first opening/closing body and the second opening/closing body, but also can prevent foreign matter from entering through the opening with the grid-like grill. That is, the shutter device functions as a grill. In other words, the shutter device can be unitized including the grille.

In the shutter device having the above configuration, it is possible to save the space of the configuration related to the driving of the opening/closing body.

The side view which shows typically the front part of a vehicle provided with the shutter apparatus which concerns on one Embodiment. 3 is a perspective view of a shutter device; FIG. A perspective view of a first opening/closing body and a second opening/closing body. It is a side view of a 1st opening-and-closing body and a 2nd opening-and-closing body, (a) is a left side view, (b) is a right side view. FIG. 4A is a perspective view and FIG. 4B is a front view showing a shutter frame and an actuator; 5A is a left side view, (b) is a right side view, (c) is an end view along arrow 6c-6c in FIG. 5, and (d) is arrow 6d-6d. 6e-6e arrow end view. FIG. 2 is a partially enlarged front view of the shutter device excluding the shutter frame; The side view which shows the relationship between a transmission mechanism, a 1st opening-and-closing body, and a 2nd opening-and-closing body. 1 is a front view of a shutter device, (a) showing a state in which the first opening/closing body and the second opening/closing body are positioned at the closed position, and (b) showing the state in which the first opening/closing body and the second opening/closing body are positioned; It shows the state in the open position. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a side view of a shutter device with a part of the structure omitted, (a) showing a state in which the first opening/closing body and the second opening/closing body are positioned at the closed position, and (b) showing the first opening/closing body; and a state in which the second opening/closing body is positioned at the open position. It is a side view of the shutter device according to the modification, (a) shows a state in which the first opening and closing body and the second opening and closing body are positioned in the closed position, (b) shows the first opening and closing body and the second opening and closing body is located at the open position.

A vehicle equipped with a shutter device according to an embodiment will be described below with reference to the drawings.
As shown in FIG. 1, a vehicle 10 includes an engine 12 arranged in an engine room 11, a radiator 13 for cooling the engine 12, a fan 14 for guiding air to the radiator 13, and a front A bumper 15 and a shutter device 30 for controlling the flow rate of air flowing into the engine room 11 are provided.

The radiator 13 corresponds to an example of a heat exchanger and cools the coolant of the engine 12 . The fan 14 is arranged behind the radiator 13 in the vehicle 10 . Fan 14 is driven to guide air to radiator 13 efficiently.

The front bumper 15 includes a bumper reinforcement 16 and a bumper absorber 17 that absorb the impact of the collision of the vehicle 10 , and a bumper cover 18 that covers the bumper reinforcement 16 and the bumper absorber 17 . An opening 19 is formed in the lower portion of the bumper cover 18, the longitudinal direction being the width direction of the vehicle. The opening 19 connects to the engine room 11 via an air introduction passage 21 . That is, the opening 19 opens in front of the vehicle 10 to introduce air into the engine room 11 .

As shown in FIG. 2, the shutter device 30 includes a pair of opening/closing bodies 40 (a first opening/closing body 41 and a second opening/closing body 42) for opening and closing the opening 19, and a shutter frame supporting the pair of opening/closing bodies 40. 50 , an actuator 60 that serves as a driving source for the pair of opening/closing bodies 40 , and a transmission mechanism 70 that transmits the power of the actuator 60 to the pair of opening/closing bodies 40 .

In the following description, the longitudinal direction of the shutter device 30 will be referred to as the "width direction". The front side of the shutter device 30 is the front side, and the opposite side is the rear side. Also, the direction in which the pair of opening/closing bodies 40 are arranged is defined as the "vertical direction". In this embodiment, the width direction, the front-rear direction and the vertical direction of the shutter device 30 correspond to the width direction, the front-rear direction and the vertical direction of the vehicle 10 .

Next, the first opening/closing body 41 and the second opening/closing body 42 will be described with reference to FIGS. 3 and 4. FIG.
As shown in FIG. 3 , the first opening/closing body 41 includes a long first fin 411 , first bent portions 412 bent from both ends in the longitudinal direction of the first fin 411 , and first bent portions 412 . and first shaft portions 413 and 414 extending from the portion 412 in the longitudinal direction of the first fin 411 . Similarly, the second opening/closing body 42 includes a long second fin 421 , a second bent portion 422 bent from both ends in the longitudinal direction of the second fin 421 , and and second shaft portions 423 and 424 extending in the longitudinal direction of the two fins 421 .

In FIG. 3, a dashed line passing through the first shafts 413 and 414 of the first opening/closing body 41 indicates the "first rotation axis AX1" of the first opening/closing body 41, and the second opening/closing body 42 A dashed-dotted line passing through the second shaft portions 423 and 424 indicates the “second rotation axis AX2” of the second opening/closing body 42 . As shown in FIG. 3, both the first rotation axis AX1 and the second rotation axis AX2 are axes extending in the width direction.

The first fin 411 and the second fin 421 have a thin plate shape whose longitudinal direction is the width direction, and are curved in an arc shape so that the central portion in the longitudinal direction protrudes from both ends. Specifically, the first fin 411 and the second fin 421 are curved to correspond to the shape of the bumper cover 18 . As shown in FIG. 4A, the distance L1 from the first rotation axis AX1 to the tip 415 of the first fin 411 (the first opening/closing body 41) is the distance from the second rotation axis AX2 to the second is longer than the distance L2 to the tip 425 of the fin 421 (second opening/closing body 42). In addition, the first tip surface 416 of the first fin 411 (first opening/closing body 41) is inclined with respect to the plate thickness direction of the first fin 411, and the second fin 421 (second opening/closing body 42) is inclined with respect to the plate thickness direction of the second fin 421 .

As shown in FIGS. 3 and 4(a), the first end of the first opening/closing body 41 in the width direction, that is, the tip of the first shaft portion 413 has a direction perpendicular to the first rotation axis AX1. A first driven link 417 is provided extending to the . Similarly, a second driven link 427 extending in a direction orthogonal to the second rotation axis AX2 is provided at the first end in the width direction of the second opening/closing body 42, that is, at the tip of the second shaft portion 423. be done. As shown in FIG. 4( a ), the formation angle of the first driven link 417 with respect to the first bent portion 412 is different from the formation angle of the second driven link 427 with respect to the second bent portion 422 . The first driven link 417 and the second driven link 427 are parts on which power transmitted from the actuator 60 to the first opening/closing body 41 and the second opening/closing body 42 acts.

As shown in FIGS. 3 and 4B, the second end of the first opening/closing body 41 in the width direction, that is, the first shaft portion 414 protrudes in a direction intersecting the first rotation axis AX1. A first engaging portion 418 is provided to engage. Similarly, a second engaging portion 428 projecting in a direction intersecting the second rotation axis AX2 is provided at the second end in the width direction of the second opening/closing body 42, i.e., the second shaft portion 424. be done.

Next, the shutter frame 50 will be described with reference to FIGS. 5 and 6. FIG.
As shown in FIGS. 5A and 5B, the shutter frame 50 includes a first frame 51 forming a first end side of the shutter frame 50 in the width direction, and a second end side of the shutter frame 50 in the width direction. It has a second frame 52 forming a side and a third frame 53 connecting the first frame 51 and the second frame 52 in the width direction.

The first frame 51 and the second frame 52 serve as connecting parts with the vehicle 10 when the shutter device 30 is attached to the vehicle 10 . The first frame 51 supports the actuator 60 on the outside in the width direction.

As shown in FIG. 6A, the first frame 51 includes first ends (first shaft portion 413 and second shaft portion 423) of the first opening/closing body 41 and the second opening/closing body 42. are provided with bearings 511 and 512 that rotatably support the . Similarly, as shown in FIG. 6B, the second frame 52 includes the second ends of the first opening/closing body 41 and the second opening/closing body 42 (the first shaft portion 414 and the second shaft portion 414). Bearings 521 and 522 are provided to rotatably support the portion 424).

In the first frame 51 and the second frame 52 , the bearings 511 and 521 supporting the first shaft portions 413 and 414 of the first opening/closing body 41 support the second shaft portion 423 of the second opening/closing body 42 . , 424 above the bearings 512 , 522 . In this way, the first opening/closing body 41 is rotatably supported around the first rotation axis AX1, and the second opening/closing body 42 is rotatably supported around the second rotation axis AX2. .

As shown in FIGS. 5(a) and 5(b), each of the first frame 51 and the second frame 52 includes an opening stopper 54 and a closing stopper 54 for positioning the first opening/closing body 41 and the second opening/closing body 42. It has a stopper 55 . The first frame 51 also has a support shaft 513 that supports the transmission mechanism 70 and a housing 514 that covers the transmission mechanism 70 from behind.

As shown in FIG. 5B, the open stopper 54 is provided inside the first frame 51 and the second frame 52 in the width direction. As shown in FIG. 6(c), the open stopper 54 has a substantially triangular cross-sectional shape in the width direction. The open stopper 54 has a first slope 541 that faces downward as it advances forward, and a second slope 542 that faces upward as it advances forward. The open stopper 54 positions the first opening/closing body 41 and the second opening/closing body 42 to the "open position" where the opening 19 of the vehicle 10 is opened.

As shown in FIG. 5(b), the closing stopper 55 is provided inside the opening stopper 54 in the width direction in the first frame 51 and the second frame 52. As shown in FIG. As shown in FIG. 6(d), the closing stopper 55 is a projection projecting forward. The closing stopper 55 has a first planar surface 551 which is also the upper surface of the projection and a second planar surface 552 which is also the lower surface of the projection. The closing stopper 55 positions the first opening/closing body 41 and the second opening/closing body 42 to the “closed position” for closing the opening 19 of the vehicle 10 .

As shown in FIGS. 5A and 5B, the support shaft 513 has a columnar shape in the first frame 51 with the width direction as the axial direction. The support shaft 513 is configured to stably rotate the transmission member 71 that rotates integrally with the drive shaft 61 of the actuator 60 to be described later. As shown in FIG. 5B, the housing 514 is provided outside the first frame 51 in the width direction. As shown in FIG. 6(e), the housing 514 has a bent shape. The housing 514 is configured to limit the operating range of the transmission mechanism 70 by coming into contact with a transmission member 71 to be described later.

As shown in FIGS. 5A and 5B, the third frame 53 has a pair of upper and lower grill bars 531 and a plurality of connection plates 532 connecting the pair of upper and lower grill bars 531 . The grill bar 531 has a plate-like shape whose longitudinal direction is the width direction and whose lateral direction is the front-rear direction. The pair of grill bars 531 are arranged so as to sandwich the first rotation axis AX1 and the second rotation axis AX2 from above and below. Moreover, the grill bar 531 is preferably longer in the width direction than the opening 19 of the vehicle 10 to which the shutter device 30 is attached. The connection plate 532 has a plate-like shape with the longitudinal direction being the longitudinal direction and the lateral direction being the vertical direction. The plurality of connection plates 532 are arranged at intervals in the width direction. Thus, in the third frame 53, the pair of upper and lower grill bars 531 and the plurality of connecting plates 532 form a grid-like grill 533 when viewed from the front. Grill 533 allows passage of air while restricting the passage of foreign objects such as stones.

Next, the actuator 60 and the transmission mechanism 70 will be described with reference to FIGS. 7 and 8. FIG.
As shown in FIGS. 7 and 8, actuator 60 has a single drive shaft 61 . The drive shaft 61 extends in the same direction as the first rotation axis AX1 and the second rotation axis AX2. The drive shaft 61 has a non-circular (star-shaped) cross-sectional shape perpendicular to the axial direction. The actuator 60 may include, for example, a brushless motor having a Hall IC and a speed reducer. In addition, the actuator 60 may be a general-purpose actuator 60 in that it only needs to have a single drive shaft 61 .

As shown in FIGS. 7 and 8, the transmission mechanism 70 includes a transmission member 71 connected to the drive shaft 61 of the actuator 60, and a first intermediate link 72 connecting the transmission member 71 and the first driven link 417. , and a second intermediate link 73 connecting the transmission member 71 and the second driven link 427 .

As shown in FIG. 8 , the transmission member 71 is provided with a non-circular (star-shaped) shaft hole 711 corresponding to the cross-sectional shape of the drive shaft 61 of the actuator 60 . The drive shaft 61 of the actuator 60 is inserted into the shaft hole 711 of the transmission member 71 . As a result, the transmission member 71 rotates together with the drive shaft 61 of the actuator 60 . Further, as shown in FIG. 2, the side of the transmission member 71 opposite to the side where the drive shaft 61 of the actuator 60 is inserted is rotatably supported by the support shaft 513 of the first frame. In this way, the transmission member 71 is supported by the drive shaft 61 and the support shaft 513 at both ends of the rotation axis, so that the transmission member 71 can be rotated stably.

As shown in FIG. 8 , the transmission member 71 has a first drive link 712 , a second drive link 713 and an engagement link 714 extending in a direction perpendicular to the axis of the shaft hole 711 . In the transmission member 71, the first drive link 712, the second drive link 713 and the engagement link 714 extend in different directions. Specifically, the first drive link 712 is positioned between the second drive link 713 and the engagement link 714 in the circumferential direction of the shaft hole 711 of the transmission member 71 .

The first intermediate link 72 is rotatably connected to the first drive link 712 at one end in the longitudinal direction, and rotatably connected to the first driven link 417 at the other end in the longitudinal direction. The second intermediate link 73 is rotatably connected to the second drive link 713 at one end in the longitudinal direction, and rotatably connected to the second driven link 427 at the other end in the longitudinal direction.

In the present embodiment, the power of the drive shaft 61 of the actuator 60 is transmitted to the first opening/closing body 41 by the first drive link 712, the first intermediate link 72 and the first driven link 417, which is the "first drive link". A link mechanism 74" is constructed. On the other hand, the second link mechanism 75 transmits the power of the drive shaft 61 of the actuator 60 to the second opening/closing body 42 by the second drive link 713 , the second intermediate link 73 and the second driven link 427 . is configured.

In the first link mechanism 74, the lengths of the first drive link 712 and the first driven link 417 are equal and the length of the first intermediate link 72 is equal to that of the first drive link 712 and the first driven link 417. longer than the length of The distance between the drive shaft 61 and the first rotation axis AX1 is longer than the length of the first intermediate link 72 . As a result, the first link mechanism 74 becomes a double lever mechanism in which the first driven link 417 swings when the first drive link 712 swings. However, in the first link mechanism 74 , the swinging direction of the first driving link 712 is opposite to the swinging direction of the first driven link 417 .

In the second link mechanism 75, the lengths of the second drive link 713 and the second driven link 427 are equal, and the length of the second intermediate link 73 is equal to that of the second drive link 713 and the second driven link 427. longer than the length of The distance between the drive shaft 61 and the second rotation axis AX2 is equal to the length of the second intermediate link 73 . As a result, the second link mechanism 75 becomes a double crank mechanism in which the second driven link 427 rotates when the first drive link 712 rotates. However, since the rotation range of the second drive link 713 is less than 360 degrees, both the second drive link 713 and the second driven link 427 only swing.

In addition, in the first link mechanism 74 and the second link mechanism 75, the length of the link is the distance between the rotation axes at both ends of the link.
Thus, the first link mechanism 74 (transmission mechanism 70) transmits the power of the drive shaft 61 to the first open/close body 41 so that the first open/close body 41 rotates in the direction opposite to the drive shaft 61. , the second link mechanism 75 (transmission mechanism 70 ) transmits the power of the drive shaft 61 to the second opening/closing body 42 so that the second opening/closing body 42 rotates in the same direction as the drive shaft 61 .

The engagement link 714 is configured to limit the rotation range of the transmission member 71 accompanying rotation of the drive shaft 61 of the actuator 60 . Specifically, the engagement link 714 contacts the housing 514 of the first frame 51 to limit the rotation range of the transmission member 71 .

The operation of this embodiment will be described.
In the following description, the direction in which the first opening/closing body 41 rotates from the closed position to the open position is referred to as the "first opening direction O1", and the direction in which the first opening/closing body 41 rotates from the open position to the closed position is referred to as the "first closing direction O1". Direction C1”. Similarly, in the second opening/closing member 42, the direction in which it rotates from the closed position to the open position is defined as a "second opening direction O2", and the direction in which it rotates from the open position to the closed position is defined as a "second closing direction C2". ”.

In the vehicle 10, when the radiator 13 does not need to be cooled, the shutter device 30 has the first opening/closing body 41 and the second opening/closing body 42, as shown in FIGS. 9(a) and 10(a). to the closed position. Specifically, as shown in FIG. 10A, the shutter device 30 rotates the drive shaft 61 of the actuator 60 in the first rotation direction R1. Then, the first link mechanism 74 transmits the power of the drive shaft 61 of the actuator 60 to the first opening/closing body 41, and the first opening/closing body 41 rotates in the first closing direction C1. Further, the second link mechanism 75 transmits the power of the drive shaft 61 of the actuator 60 to the second opening/closing body 42, and the second opening/closing body 42 rotates in the second closing direction C2.

In this manner, the first opening/closing body 41 and the second opening/closing body 42 rotate in different directions, thereby displacing the first opening/closing body 41 and the second opening/closing body 42 to the closed position. When the first opening/closing body 41 and the second opening/closing body 42 are positioned at the closed position, the engagement link 714 of the transmission mechanism 70 contacts the housing 514 of the first frame 51 and the first opening/closing body 41 is closed. and the second bent portion 422 of the second opening/closing body 42 contact the closing stopper 55 . Further, the first engaging portion 418 of the first opening/closing body 41 and the second engaging portion 428 of the second opening/closing body 42 are engaged with each other.

Further, as shown in FIGS. 9A and 10A, when the first opening/closing body 41 and the second opening/closing body 42 are positioned at the closed position, the first fin 411 and the second fin 421 are closed. faces the front, and the tip 415 of the first opening/closing body 41 and the tip 425 of the second opening/closing body 42 overlap across the width. Here, since the first fin 411 and the second fin 421 are curved so as to correspond to the shape of the bumper cover 18, when the vehicle 10 is viewed from the front, the bumper cover 18, the first fin 411 and the second fin 421 are curved. The second fin 421 has a smooth and substantially continuous surface (design surface). Furthermore, the distance L1 from the first rotation axis AX1 to the tip 415 of the first opening/closing body 41 is longer than the distance L2 from the second rotation axis AX2 to the tip 425 of the second opening/closing body 42. , the tip 425 of the second opening/closing body 42 is located at the back (rear) of the first opening/closing body 41 .

In this manner, the first opening/closing body 41 blocks the upper portion of the opening 19 and the second opening/closing body 42 blocks the lower portion of the opening 19 , thereby restricting the introduction of air into the engine room 11 . As a result, warming up of the engine 12 is facilitated, and air resistance is reduced when the vehicle 10 is running.

On the other hand, when the radiator 13 does not need to be cooled, the shutter device 30 opens the first opening/closing body 41 and the second opening/closing body 42 as shown in FIGS. 9B and 10B. place in position. Specifically, as shown in FIG. 10B, the shutter device 30 rotates the drive shaft 61 of the actuator 60 in the second rotation direction R2. Then, the first link mechanism 74 transmits the power of the drive shaft 61 of the actuator 60 to the first opening/closing body 41, and the first opening/closing body 41 rotates in the first opening direction O1. Further, the second link mechanism 75 transmits the power of the drive shaft 61 of the actuator 60 to the second opening/closing body 42, and the second opening/closing body 42 rotates in the second opening direction O2.

In this way, the first opening/closing body 41 and the second opening/closing body 42 are displaced from the closed position to the open position by rotating in mutually different directions so as to open on both sides. When the first opening/closing body 41 and the second opening/closing body 42 are positioned at the open position, the first bent portion 412 of the first opening/closing body 41 and the second bent portion 422 of the second opening/closing body 42 contacts the opening stopper 54 .

Thus, the first opening/closing member 41 opens the upper portion of the opening 19 and the second opening/closing member 42 opens the upper portion of the opening 19, thereby permitting air to be introduced into the engine room 11. FIG. As a result, radiator 13 is cooled.

Effects of the present embodiment will be described.
(1) In the shutter device 30 , the transmission mechanism 70 transmits the power of the single drive shaft 61 to the first opening/closing body 41 and the second opening/closing body 42 . Therefore, the shutter device 30 does not need to separately include an actuator for rotating the first opening/closing body 41 and an actuator for rotating the second opening/closing body 42 . Therefore, when the shutter device 30 is attached to the vehicle 10, the space occupied by the actuator 60 can be reduced.

Moreover, the shutter device 30 does not need to prepare an actuator having two drive shafts 61 so that power can be transmitted to both the first opening/closing body 41 and the second opening/closing body 42 . Therefore, the shutter device 30 can open and close the first opening/closing body 41 and the second opening/closing body 42 using a general-purpose actuator.

(2) In the shutter device 30, the drive shaft 61 of the actuator 60, the first rotation axis AX1 of the first opening/closing body 41, and the second rotation axis AX2 of the second opening/closing body 42 face the same direction. , the structure of the transmission mechanism 70 can be simplified. Specifically, the transmission mechanism 70 does not need to change the rotation axis direction when transmitting the power of the drive shaft 61 to the first opening/closing body 41 and the second opening/closing body 42 . Further, the transmission mechanism 70 does not need to change the rotation direction when transmitting the power of the drive shaft 61 to the second opening/closing body 42 . In this respect, the shutter device 30 can simplify the structure of the transmission mechanism 70 .

(3) When the transmission mechanism 70 is composed of a plurality of gears, if foreign matter such as sand entering the opening 19 adheres to the gears, the transmission mechanism may not operate smoothly due to the foreign matter getting caught. In this regard, in the shutter device 30 of the present embodiment, the transmission mechanism 70 is configured by a link mechanism that is less likely to catch foreign matter. Therefore, the shutter device 30 can be made less susceptible to foreign matter entering the opening 19 .

(4) As shown in FIG. 10A, when the first opening/closing body 41 and the second opening/closing body 42 are positioned at the closed position, the first opening/closing body 41 and the second opening/closing body 42 are perpendicular to each other. Gravity acts downward. Therefore, when the power of the drive shaft 61 of the actuator 60 is turned off, the first opening/closing body 41 on the upper side tends to rotate in the first closing direction C1 by its own weight, and the second opening/closing body 42 on the lower side tends to rotate by its own weight. tries to rotate in the second opening direction O2.

In this regard, the shutter device 30 includes the closing stopper 55 (first slope 551) that contacts the first bent portion 412 of the first opening/closing body 41 positioned at the closed position from below in the vertical direction. Therefore, it is possible to prevent the first opening/closing body 41 from rotating in the first closing direction C1 due to its own weight.

Further, the shutter device 30 includes a first engaging portion 418 and a second engaging portion 428 that engage with each other when the first opening/closing body 41 and the second opening/closing body 42 are positioned at the closed position. Therefore, as shown in FIG. 10( a ), the first engaging portion 418 and the second engaging portion 428 are pushed to the second opening/closing body 42 by the weight of the second opening/closing body 42 . The torque acting in the opening direction O2 is transmitted to the first opening/closing body 41 as the torque acting in the first opening direction O1. That is, the torque acting on the second opening/closing body 42 in the second opening direction O2 due to the weight of the second opening/closing body 42 is applied to the first opening/closing body 41 due to the weight of the first opening/closing body 41 . is canceled with the torque acting in the closing direction C1 of . As a result, the shutter device 30 can prevent the second opening/closing body 42 from rotating in the second opening direction O2 due to its own weight. In other words, the second opening/closing body 42 is held at the closed position, and the occurrence of a gap between the first opening/closing body 41 and the second opening/closing body 42 positioned at the closed position can be suppressed.

(5) As shown in FIG. 10A, when the first opening/closing body 41 and the second opening/closing body 42 rotate from the open position to the closed position, the first bent portion of the first opening/closing body 41 412 and the second bent portion 422 of the second opening/closing body 42 contact the closing stopper 55 (the first plane 551 and the second plane 552). That is, when the shutter device 30 rotates the first opening/closing body 41 and the second opening/closing body 42 to the closed position, the shutter device 30 moves the first opening/closing body 41 and the second opening/closing body 42 to predetermined positions (closed positions). ).

(6) As shown in FIG. 10A, the drive shaft 61 of the actuator 60 is rotated in the first rotation direction to rotate the first opening/closing body 41 and the second opening/closing body 42 from the open position to the closed position. When rotating to R1, the engagement link 714 of the transmission mechanism 70 contacts the housing 514 of the first frame 51 . In other words, the shutter device 30 can position the first opening/closing body 41 and the second opening/closing body 42 at a predetermined position (closed position) even by the contact between the engagement link 714 and the housing 514 .

(7) As shown in FIGS. 9(a) and 10(a), when the first opening/closing body 41 and the second opening/closing body 42 are positioned at the closed position, the distal end 415 of the first opening/closing body 41 and the The tip 425 of the second opening/closing body 42 overlaps across the width. Therefore, the shutter device 30 can make it more difficult for the running wind to pass through the engine room 11 when the first opening/closing body 41 and the second opening/closing body 42 are positioned.

(8) As shown in FIGS. 9A and 10A, when the first opening/closing body 41 and the second opening/closing body 42 are positioned at the closed position, the tip 425 of the second opening/closing body 42 is , located behind the tip 415 of the first opening/closing body 41 . Therefore, when the second opening/closing body 42 tries to rotate in the second opening direction O2 due to its own weight, the tip of the second opening/closing body 42 touches the back surface of the first fin 411 of the first opening/closing body 41 . Contact. Therefore, similarly to the effect (4) of the present embodiment, the shutter device 30 can easily keep the second opening/closing body 42 in the closed position.

Further, as shown in FIG. 10A, the shutter device 30 has a first tip surface 416 and a second tip surface when the first opening/closing body 41 and the second opening/closing body 42 are positioned at the closed position. 426 inclines vertically downward as it goes to the front of the vehicle 10 . Therefore, when the user looks down at the shutter device 30, the gap formed between the first opening/closing body 41 and the second opening/closing body 42 becomes inconspicuous. In other words, the shutter device 30 can enhance the design.

(9) As shown in FIG. 10B, when the first opening/closing body 41 and the second opening/closing body 42 rotate from the closed position to the open position, the first bent portion of the first opening/closing body 41 412 and the second bent portion 422 of the second opening/closing body 42 contact the opening stopper 54 (the first slope 541 and the second slope 542). That is, when the shutter device 30 rotates the first opening/closing body 41 and the second opening/closing body 42 to the open position, the shutter device 30 moves the first opening/closing body 41 and the second opening/closing body 42 to predetermined positions (open positions). ).

(10) The shutter frame 50 has a function of rotatably supporting the first opening/closing body 41 and the second opening/closing body 42 and a function of the grille 533 . In other words, the shutter device 30 can be integrated (unitized) with the grille 533 . Therefore, compared to the case where the shutter device and the front grille are separately attached to the vehicle 10, it becomes easier to control the dimensions, and the attachment work can be facilitated.

(11) As shown in FIG. 10A, the shutter device 30 has first shaft portions 413 and 414 and second shaft portions at both ends of the first fin 411 and the second fin 421 in the longitudinal direction. 423 and 424 are not included. In other words, the shutter device 30 has the first rotation axis AX1 set at a position away from the first fin 411 and the second rotation axis AX2 set at a position away from the second fin 421. . Therefore, when the first opening/closing body 41 and the second opening/closing body 42 are displaced between the open position and the closed position, the rotation trajectory of the first fin 411 and the second fin 421 tends to become large.

As a result, as shown in FIG. 9B, when the first opening/closing body 41 and the second opening/closing body 42 are positioned at the open position in the front view of the vehicle 10, the first fins 411 extend from the opening 19. and the second fin 421 disappears. Thus, the shutter device 30 can greatly change the design when the opening 19 is opened and closed by the first opening/closing body 41 and the second opening/closing body 42 . Furthermore, since the first fins 411 and the second fins 421 are not located in the air introduction path, even if the first fins 411 and the second fins 421 have complicated shapes, the first fins 411 and the second fins 421 can be 2 fins 421 can be suppressed from obstructing the introduction of air into the engine room 11 .

This embodiment can be implemented with the following modifications. This embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range.
- The shutter device 30 may be a shutter device 80 shown in FIG. In the shutter device 80, when compared with the shutter device 30 of the above-described embodiment, the first bent portion 412 of the first opening/closing body 41 functions as a first driven link 417, and the second opening/closing body 42 of the second opening/closing body 42 functions as a first bent portion 412. is configured to function as a second driven link 427 .

As shown in FIG. 11 , the shutter device 80 includes a first opening/closing body 81 and a second opening/closing body 82 for opening and closing the opening 19 , and a drive shaft 61 that transmits power to the first opening/closing body 81 and the second opening/closing body 82 . and a transmission mechanism 90 for transmission to the body 82 .

The first opening/closing body 81 and the second opening/closing body 82 are rotatably supported by a common rotating shaft 83 . That is, the axis of the rotation shaft 83 is the first rotation axis AX1 and the second rotation axis AX2. The first opening/closing body 81 has thin plate-like first fins 811 , and the second opening/closing body 82 has thin plate-like second fins 821 .

The transmission mechanism 90 includes a drive link 91 that rotates together with the drive shaft 61, a first intermediate link 92 that connects the drive link 91 and the first opening/closing body 81, and a drive link 91 and the second opening/closing body 82. and a second intermediate link 93 that The first intermediate link 92 is relatively rotatably connected to the first opening/closing body 81 and the driving link 91, and the second intermediate link 93 is relatively rotatably connected to the second opening/closing body 82 and the driving link 91. be done. That is, in the shutter device 80, the drive link 91, the first intermediate link 92 and the first opening/closing body 81 constitute the first link mechanism 94, and the drive link 91, the second intermediate link 93 and the second A second link mechanism 95 is configured by the opening/closing body 82 .

According to this configuration, as shown in FIGS. 11A and 11B, by rotating the drive shaft 61 in the second rotation direction R2, the first opening/closing body 81 and the second opening/closing body are rotated. 82 can be placed in the closed position. On the other hand, by rotating the drive shaft 61 in the first rotation direction R1, the first opening/closing body 81 and the second opening/closing body 82 can be arranged at the open position. The shutter device 80 shown in FIG. 11 can reduce the number of components.

- The transmission mechanism 70 may be a transmission mechanism other than the link mechanism. For example, the transmission mechanism 70 may be composed of a plurality of gears, or may be composed of pulleys and belts. Further, when the actuator 60 is arranged so that the axis of the drive shaft 61 is orthogonal to the width direction, the transmission mechanism 70 is preferably configured so that the rotation axis direction can be changed.

The shutter device 30 does not need to have a configuration related to positioning of the first opening/closing body 41 and the second opening/closing body 42, and need not have a configuration to limit the operating range of the transmission mechanism 70. In this case, the shutter device 30 preferably manages the positions of the first opening/closing body 41 and the second opening/closing body 42 by performing detailed control of the actuator 60 (motor rotation control).

The shutter device 30 changes the positions of the first rotation axis AX1 and the second rotation axis AX2, and changes the length of the links that constitute the first link mechanism 74 and the second link mechanism 75. The rotation modes of the first opening/closing body 41 and the second opening/closing body 42 may be changed by moving the opening/closing body 41 and the second opening/closing body 42 . For example, in the shutter device 30, the timing at which the first link mechanism 74 finishes rotating from the closed position to the open position is different from the timing at which the second link mechanism 75 finishes rotating from the closed position to the open position. It may be configured to be

In the shutter device 30, when the first opening/closing body 41 and the second opening/closing body 42 are positioned at the closed position, the tip 415 of the first opening/closing body 41 is positioned behind the tip of the second opening/closing body 42. Thus, the first opening/closing body 41 and the second opening/closing body 42 may be configured.

- The shutter device 30 may not include the grille 533 . In this case, the shutter device 30 is preferably provided in the opening of the front grill of the vehicle.
- The first engaging portion 418 and the second engaging portion 428 may be provided on the first rotation axis AX1 and the second rotation axis AX2, and may be gears that mesh with each other. Effect (4) of the above embodiment can also be obtained with this configuration. Also, the first engaging portion 418 and the second engaging portion 428 may be provided with their positions shifted on the first rotation axis AX1 and the second rotation axis AX2.

- The shutter device 30 may be attached to the vehicle 10 so that the first rotation axis AX1 and the second rotation axis AX2 are oriented in a direction different from the width direction of the vehicle 10 . For example, the shutter device 30 may be attached to the vehicle 10 so that the first rotation axis AX<b>1 and the second rotation axis AX<b>2 are oriented in the vertical direction of the vehicle 10 .

- The vehicle 10 may be an electric vehicle that does not include the engine 12 as long as the vehicle 10 has a configuration that needs to be cooled by running wind. That is, the engine room 11 in the above embodiment includes a motor room in an electric vehicle.

DESCRIPTION OF SYMBOLS 10... Vehicle, 11... Engine room, 12... Engine, 13... Radiator, 14... Fan, 15... Front bumper, 16... Bumper reinforcement, 17... Bumper absorber, 18... Bumper cover, 19... Opening, 21... Air Introduction path 30 Shutter device 40 Opening/closing body 1 First opening/closing body 411 First fin 412 First bent portion 413 First shaft 414 First shaft Part 415... Tip 416... First tip surface 417... First follower link 418... First engagement part 42... Second opening/closing body 421... Second fin 422... Second bending portion 423 second shaft portion 424 second shaft portion 425 tip 426 second tip surface 427 second driven link 428 second engaging portion ... shutter frame, 51 ... first frame, 511 ... bearing, 512 ... bearing, 513 ... spindle, 514 ... housing, 52 ... second frame, 521 ... bearing, 522 ... bearing, 53 ... third frame, 531... Grill bar, 532... Connection plate, 533... Grill, 54... Open stopper, 541... First slope, 542... Second slope, 55... Closed stopper, 551... First plane, 552... Second slope Plane surface 60 Actuator 61 Drive shaft 70 Transmission mechanism 71 Transmission member 711 Shaft hole 712 First drive link 713 Second drive link 714 Engagement link 72 First intermediate link 73... Second intermediate link 74... First link mechanism 75... Second link mechanism 80... Shutter device 81... First opening/closing body 811... First fin, 82... Second opening/closing body 821... Second fin 83... Rotating shaft 90... Transmission mechanism 91... Driving link 92... First intermediate link 93... Second intermediate link 94... Second 1 link mechanism 95 second link mechanism AX1 first rotation axis line AX2 second rotation axis line IC hole L1 distance L2 distance O1 first opening direction , O2... second opening direction, C1... first closing direction, C2... second closing direction, R1... first rotation direction, R2... second rotation direction.

Claims (7)

A shutter device for opening and closing an opening for introducing air into an engine room of a vehicle based on driving of an actuator,
a first opening/closing body that rotates about a first rotation axis to open and close the opening;
a second opening/closing body that rotates about a second rotation axis extending in the same direction as the first rotation axis and opens and closes the opening together with the first opening/closing body;
a transmission mechanism for transmitting the power of the single drive shaft of the actuator to the first opening and closing body and the second opening and closing body,
the actuator has the single drive shaft rotated by a motor;
The first opening/closing body and the second opening/closing body are rotated in mutually different directions so as to open on both sides, thereby displacing from a closed position that closes the opening to an open position that opens the opening,
the drive shaft of the actuator extends in the same direction as the first pivot axis and the second pivot axis;
The transmission mechanism includes the first opening/closing body and the second opening/closing body.One of the opening/closing bodies transmits the power of the drive shaft to the one opening/closing body so that it rotates in the same direction as the drive shaft, and the other opening/closing body rotates in the opposite direction to the drive shaft. to the other opening and closing bodypower of the drive shafttransmittedreach being a thing,
The transmission mechanism includes a first link mechanism that transmits power of the drive shaft to the first opening/closing body, and a second link mechanism that transmits power of the drive shaft to the second opening/closing body. have
The first opening/closing body has a first shaft, and the second opening/closing body has a second shaft,
A first driven link is provided at the tip of the first shaft, and a second driven link is provided at the tip of the second shaft,
The first link mechanism includes a first drive link connected to rotate together with the drive shaft and extending in a direction orthogonal to the drive shaft, the first driven link, and the first drive link at one end. a first intermediate link that is relatively rotatably connected to the drive link of and is relatively rotatably connected to the first driven link on the other end side;
The second link mechanism includes a second drive link connected to rotate together with the drive shaft and extending in a direction perpendicular to the drive shaft; a second driven link; a second intermediate link that is relatively rotatably connected to the drive link of and is relatively rotatably connected to the second driven link on the other end side;
The first link mechanism and the second link mechanism are arranged offset along the axial direction of the drive shaft.
shutter device. the first link mechanism, wherein the first drive link and the first driven link swing in opposite directions;
In the second link mechanism, the second driving link and the second driven link swing in the same direction.
The shutter device according to claim 1. The first drive link and the second drive link extend in different directions
The shutter device according to claim 1 or 2. A direction in which the first opening/closing body rotates from the closed position toward the open position is defined as a first opening direction, and the second opening/closing body rotates from the closed position toward the open position. When the direction of opening is the second opening direction,
The first opening and closing body and the second opening and closing body respectively have a first engaging portion and a second engaging portion that engage with each other when positioned at the closed position,
The first engaging portion and the second engaging portion engage the second opening/closing member when the first opening/closing member and the second opening/closing member are positioned at the closed position. The shutter device according to any one of claims 1 to 3, wherein torque acting in the opening direction is transmitted as torque acting in the first opening direction of the first opening/closing body. When the direction in which the first rotation axis and the second rotation axis extend is the width direction,
When the first opening/closing body and the second opening/closing body are positioned at the closed position, the distal end of the first opening/closing body and the distal end of the second opening/closing body overlap across the width direction. The shutter device according to any one of claims 1 to 4. 6. The shutter device according to claim 5, wherein when the first opening/closing body and the second opening/closing body are positioned at the closed position, the tip of the second opening/closing body is positioned behind the first opening/closing body. . When the direction in which the first rotation axis and the second rotation axis extend is the width direction,
a first frame rotatably supporting a first end in the width direction of the first opening/closing body and a first end in the width direction of the second opening/closing body; a second frame that rotatably supports a second end in the width direction and the second end of the second opening/closing body in the width direction; a shutter frame having an interlocking third frame;
The shutter device according to any one of claims 1 to 6, wherein the third frame has a grid-like grill when viewed from the front.

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