JP2020117173A - Vehicular register device - Google Patents

Abstract

To provide a vehicular register device capable of reducing the load of a closing operation of a shutter while maintaining sealing ability of a shutter in a closed state.SOLUTION: When a shutter 40 is at a set angle position for closing a ventilation flue, seal parts 42, 43 are in contact with receiving surfaces 18x, 19x of protrusions 18, 19 with the seal parts 42, 43 elastically deformed. The receiving surfaces 18x, 19x are biased so as to protrude in an opening direction of the shutter 40 relative to a virtual receiving surface P which receives the seal parts 42, 43 in a state of not elastically deformed when the shutter 40 is at the set angle position. Thus, the seal parts 42, 43 are elastically deformed according to an overlapping margin W between the receiving surfaces 18x, 19x and the virtual receiving surface P. The overlapping margin W decreases as the receiving surfaces 18x, 19x approach a rotation axis line L of the shutter 40.SELECTED DRAWING: Figure 6

Description

The present invention relates to a vehicle register device for blowing air from an air conditioner into a vehicle compartment.

A general vehicle register device includes a register main body having a ventilation passage, a fin group arranged in the ventilation passage for adjusting an air blowing direction, and a shutter arranged upstream of the fin group.

The shutter disclosed in Patent Document 1 is a two-color molded product, and has a shutter body and a seal portion formed on the periphery of the shutter body. The seal portion is made of a material softer than the shutter body. When the shutter is in the closed position with the set angle, the seal portion comes into elastic contact with the wall surface of the register body to close the ventilation passage.

JP, 2008-90013, A

In the register device of Patent Document 1, the present inventor forms a ridge corresponding to the seal portion of the shutter on the inner periphery of the register body in order to further enhance the sealing performance in the closed state of the ventilation passage. Are considering.

When the shutter is closed at the set angle position, an overlapping margin must be provided in order to contact the receiving surface of the ridge with the seal portion elastically deformed. That is, the receiving surface of the ridge has an overlap amount so as to project in the opening direction of the shutter with respect to the virtual receiving surface that receives the seal portion without elastically deforming when the shutter is at the set angle position. Need to be biased.
However, it has been found that if the overlap margin is constant over the entire circumference, a large load is applied to the operation for closing the shutter to the set angle position.

The present invention has been made to solve the above problems, and has a register main body having an air passage for blowing air from an air conditioner toward a vehicle compartment, and the register main body rotatably supported to open and close the air passage. In the vehicle register device including the shutter,
The shutter has a shutter main body and a seal portion that is arranged on the periphery of the shutter main body and is softer and elastically deformable than the shutter main body, and a ridge corresponding to the seal portion is provided on the inner circumference of the register main body. The protrusion has a receiving surface that receives the seal portion when the shutter is closed, and when the shutter is at a set angle position that closes the ventilation passage, the seal portion is elastically deformed. The receiving surface of the ridge is in contact with the receiving surface of the ridge with respect to the virtual receiving surface that receives the seal portion without elastic deformation when the shutter is at the set angle position. And is biased so as to project in the opening direction of the shutter, so that when the shutter is at the set angle position, the overlap margin between the receiving surface of the ridge and the virtual receiving surface is increased. Accordingly, the seal portion is elastically deformed, and the overlap margin is reduced as the receiving surface approaches the rotation axis of the shutter.

According to the above configuration, the overlap margin between the receiving surface of the ridge and the virtual receiving surface decreases as it approaches the rotation axis of the shutter, so that the load required for the shutter closing operation can be reduced. .. This is because the elastic deformation amount of the seal portion at a portion close to the rotation axis where the rotation moment required for the unit elastic deformation amount of the seal portion is large is reduced.

Preferably, the receiving surface of the ridge coincides with the surface drawn by rotating the virtual receiving surface from the set angular position by a predetermined angle in the opening direction of the shutter.
According to the above configuration, the receiving surface of the ridge can be easily designed.

More preferably, the predetermined angle is 1 to 2°.
According to the above configuration, good sealing property and good operability can be obtained.

According to the present invention, it is possible to reduce the burden of the shutter closing operation while maintaining the sealing property in the closed state of the shutter.

It is the front view which looked at the register device for vehicles concerning one embodiment of the present invention from the vehicle interior side. FIG. 2 is a side sectional view taken along the line II-II in FIG. 1, showing a state in which a shutter is open. FIG. 2 is a side sectional view taken along the line II-II in FIG. 1, showing a state in which a shutter is closed. FIG. 3 is a plan sectional view taken along the line III-III in FIG. 1, which is shown with a shutter closed. However, the downstream fin group is omitted. It is a front view of a shutter. FIG. 3 is an enlarged side sectional view of an essential part showing a margin of overlap between a virtual receiving surface and a receiving surface of a protrusion formed on the register body of the vehicle register device. FIG. 7 is an enlarged side cross-sectional view of a main part showing a contact state between the seal portions at the upper and lower edges of the shutter and the receiving surface. Shows a state in which the shutter is in contact with the receiving surface, and (B) shows a state in which the shutter further rotates slightly in the closing direction to reach the set angle position, and the seal portions at the upper and lower edges are elastically deformed and are in contact with the receiving surface. .. FIG. 4A is an enlarged plan sectional view of an essential part showing a contact state between the seal portions on the left and right edges of the shutter and the receiving surface of the register body. FIG. The state in which the shutter is in contact with the receiving surface without being deformed is shown, and (B) shows that the shutter further rotates slightly in the closing direction to reach the set angular position, and the seal portions on the left and right edges elastically deform and contact the receiving surface. Indicates the state.

An embodiment of the present invention will be described below with reference to the drawings. In order to facilitate understanding, only the cross section of the shutter is shown by hatching, and the cross section of other constituent members is not shown.
The register device of the present embodiment is installed in an instrument panel of a vehicle, and as shown in FIGS. 1 to 3, the register body 10 having an air passage 15 extending in the vehicle length direction and the air passage 15 are provided. An upstream fin group 20 arranged on the upstream side, a downstream fin group 30 arranged on the downstream side of the ventilation passage 15, and a shutter 40 arranged on the ventilation passage 15 further upstream of the upstream fin group 20. An operation dial 50 (operation member) for opening and closing the shutter 40 is provided as a main component.

The upstream end of the ventilation passage 15 of the register body 10 is connected to a duct from the air conditioner, and the downstream end serves as an air outlet. The temperature-controlled air from the air conditioner blows out from the air outlet toward the passenger compartment. In the present embodiment, the register main body 10 is configured by assembling a tubular case, a bezel on the passenger compartment side, and other parts.
The register body 10 has an upper wall 11 and a lower wall 12 facing each other in the vertical direction, and side walls 13 and 14 facing each other in the horizontal direction (vehicle width direction).

The upstream fin group 20 has a plurality of fins 21. The fins 21 have an elongated plate shape extending in the vertical direction and are arranged apart from each other in the horizontal direction.
As shown in FIG. 2A, each fin 21 is rotatably connected to the upper wall 11 of the register body 10 via a rotation shaft 21a formed at the upper and lower ends thereof so as to be rotatable about a rotation axis extending in the vertical direction. It is supported by the lower wall 12.
The plurality of fins 21 have interlocking shafts 21b at their lower ends, and these interlocking shafts 21b are rotatably connected to interlocking links 22 extending in the left and right directions. An engagement shaft 25 is formed on the central fin 21.

The downstream fin group 30 has a plurality of fins 31. These fins 31 are in the shape of an elongated plate extending in the left-right direction and are arranged apart from each other in the vertical direction.
Although not shown, the fin 31 is supported by the left and right side walls 13 and 14 of the register body 10 so as to be rotatable about a rotation axis extending in the left-right direction via the rotation shafts at both ends. Like 20, they are rotatably connected by an interlocking link.

An operation knob 35 is attached to the central fin 31 of the downstream fin group 30 so as to be slidable in the left-right direction. The operation knob 35 has an engaging fork portion (not shown) protruding toward the upstream side, and this engaging fork portion is provided on the central fin 21 of the upstream fin group 20. It is engaged with the shaft 25.

When the shutter 40 is opened and the operating knob 35 is manually pinched and rotated up and down, all the fins 31 of the downstream fin group 30 rotate in the same direction, which causes the blowing direction to move up and down. It can be adjusted.
Further, when the operation knob 35 is slid to the left and right, the central fin 21 of the upstream fin group 20 is rotated left and right through the engagement of the engaging fork portion and the engaging shaft 25, and further through the interlocking link 22. By rotating the other fin 21 left and right, the blowing direction can be adjusted left and right.

As shown in FIGS. 2 to 4, the shutter 40 is a two-color molded product, and is made of a hard resin, for example, a PPF shutter main body 41, and a rubber (for example, PPE) shutter arranged on the periphery of the shutter main body 41. It has seal portions 42 and 43. The seal portions 42 and 43 are softer than the shutter body 41 and elastically deformable.

As shown in FIG. 4, the shutter main body 41 has rotary shafts 41a and 41b on its left and right side edges, and is rotatable about a rotary axis L extending in the left-right direction as described later. The left and right side walls 13 and 14 of the register body 10 are supported.

The seal portions 42 and 43 are vertically separated so as to sandwich the rotary shafts 41a and 41b. The cross-sectional shape of the seal portions 42, 43 is thin between the base portion connected to the peripheral edge of the shutter body 41 and the tip portion, and is easily elastically deformed.
The upper seal portion 42 has an upper edge portion 42a and left and right side edge portions 42b and 42c which are continuous with the upper edge portion 42a.
The lower seal portion 43 has a lower edge portion 43a and left and right side edge portions 43b and 43c connected to the lower edge portion 43a.

In order to reinforce the seal portions 42 and 43, the central portions of the upper edge portion 42a of the seal portion 42 and the lower edge portion 43a of the seal portion 43 are connected by a reinforcing portion 45 made of the same material as the seal portions 42 and 43. In the present embodiment, the reinforcing portion 45 is formed on the downstream surface of the shutter body 41.

As shown in FIG. 5, a ridge 16 extending in the flow direction of the ventilation passage 15 is formed on the left side wall 13 of the register body 10, and a bearing hole 17 is formed at the downstream end of the ridge 16. Has been done. The outer peripheral surface 16a at the downstream end of the raised portion 16 forms an arc surface concentric with the bearing hole 17.
Although not shown, similar ridges and bearing holes are also formed in the right side wall 14 of the register body 10.
The left rotation shaft 41a of the shutter 41 is inserted into the bearing hole 17 of the left side wall 13, and the right rotation shaft 41b is inserted into the bearing hole of the right side wall 14, whereby the shutter 40 is rotated in the left-right direction. It is rotatably supported about the axis of motion L.

As shown in FIG. 2, FIG. 3, and FIG. 5, on the inner periphery of the register body 10, there are formed ridges 18 and 19 corresponding to the seal portions 42 and 43 of the shutter 40. The ridges 18 and 19 are vertically separated with the ridge 16 of the left side wall 13 and the ridge of the right side wall 14 interposed therebetween.

The upper ridge 18 has an upper edge portion 18a formed on the upper wall 11 and side edge portions 18b, 18c formed on the left and right side walls 13, 14 and connected to the upper edge portion 18a. The lower end of the side edge portion 18b is connected to the raised portion 16 of the left side wall 13, and the lower end of the side edge portion 18c is connected to the raised portion of the right side wall 14.

The lower ridge 19 has a lower edge portion 19a formed on the lower wall 12 and side edge portions 19b and 19c formed on the left and right side walls 13 and 14 and connected to the lower edge portion 19a. The upper end of the side edge portion 19b is connected to the raised portion 16 of the left side wall 13, and the upper end of the side edge portion 19c is connected to the raised portion of the right side wall 14.

The ridges 18 and 19 have receiving surfaces 18x and 19x that receive the seal portions 42 and 43 of the shutter 40, respectively. The receiving surface 18x is formed continuously on the downstream side of the upper edge portion 18a and the side edge portions 18b and 18c of the protrusion 18. The receiving surface 19x is formed continuously on the upstream side of the lower edge portion 19a and the side edge portions 19b and 19c of the ridge 19.

One end of each of the receiving surfaces 18x and 19x is continuous with the outer peripheral surface 16a at the downstream end of the raised portion 16 of the side wall 13. The other ends of the receiving surfaces 18x and 19x are connected to the outer peripheral surface of the downstream end of the raised portion of the side wall 14.

As shown in FIGS. 1 and 3, a part of the operation dial 50 projects from the window 10a of the register body 10 toward the passenger compartment, and can be operated by an occupant.
The operation dial 50 is connected to one rotation shaft 41a of the shutter 40 via a link mechanism (not shown). By rotating the operation dial 50, the shutter 40 is rotated to open and close the ventilation passage 15. Is becoming

As shown in FIG. 2A, when the shutter 40 is in the posture along the ventilation passage 15, the ventilation passage 15 is open. When the operation dial 50 is turned to turn the shutter 40 clockwise in FIG. 2A, as shown in FIGS. 2B, 6A, and 7A, the seal portions 42 and 43 of the shutter 40 are moved to the register main body 10. After reaching the receiving surfaces 18x, 19x of the ridges 18, 19, the ventilation passage 15 is closed.

When the shutter 40 is further rotated a little to the set angle position, the seal members 42 and 43 come into contact with the receiving surfaces 18x and 19x with elastic deformation, as shown in FIGS. 6B and 7B. The ventilation passage 15 can be closed with a good seal.
When the shutter 40 reaches the set angle position, the stopper mechanism provided in the link mechanism between the operation dial 50 and the shutter 40 prevents the shutter 40 from further rotating, and the holding unit temporarily holds the set angle position. can do.

In the rotation angle range of the shutter 40 from the open position to the closed position, the ends of the side edges 42b, 43b of the seal members 42, 43 are in contact with the outer peripheral surface 16a of the downstream end of the raised portion 16. Has been maintained.

As described above, when the shutter 40 is closed at the set angle position, the overlap margin W must be provided in order to contact the receiving surfaces 18x, 19x of the ridges 18, 19 with the seal portions 42, 43 elastically deformed. I have to. As shown in FIGS. 5, 6A, and 7A, the receiving surfaces 18x and 19x of the ridges 18 and 19 elastically deform the seal portions 42 and 43 when the shutter 40 is at the set angle position. It is biased by the overlap margin W so as to project in the opening direction of the shutter 40 with respect to the virtual receiving surface P that is received in the unopened state.

In the present embodiment, the receiving surfaces 18x and 19x coincide with the surfaces drawn by rotating the virtual receiving surface P from the set angle position in the opening direction by a predetermined angle. This predetermined angle is 1 to 2°, for example 1.5°.
As a result, the overlap margin W between the receiving surfaces 18x, 19x and the virtual receiving surface P changes in proportion to the distance from the rotation axis L. That is, the overlap margin W of the upper receiving surface 18x is the largest at the upper edge portion 18a of the ridge 18, decreases gradually along the rotation axis L, and decreases at the lower ends of the side edges 18b, 18c of the ridge 18 (rotation). It is the smallest at the end closest to the moving axis L). Similarly, the overlap margin W of the lower receiving surface 19x is largest at the lower edge portion 19a of the ridge 19 and gradually decreases along the rotation axis L, and the upper edges of the side edge portions 19b and 19c of the ridge portion 19 are increased. It is the smallest at (the end closest to the rotation axis L).

When the overlap margin W is set as described above, as shown in FIGS. 6A and 7A, the seal portions 42 and 43 of the shutter 40 are provided when the shutter 40 is in front of the set angular position. The shutter 40 is elastically deformed in the process of contacting the entire regions of the receiving surfaces 18x and 19x almost at the same time, and further in the process of rotating the shutter 40 in the closing direction toward the set angle position. This elastic deformation amount is smaller on the receiving surfaces 18x and 19x as it is closer to the rotation axis L, and becomes larger as it is farther from the rotation axis L. The closer to the rotation axis L, the larger the rotation moment required for the unit elastic deformation amount, but the closer to the rotation axis L, the smaller the elastic deformation amount. Therefore, when the shutter 40 closes toward the set angular position. The load of operating the operation dial 50 can be reduced.

The present invention is not limited to the above-mentioned embodiment, and various modes are possible.
The shutter may be rotated about a rotation axis extending vertically.
The overlap margin preferably changes continuously according to the distance from the rotation axis, but is not necessarily proportional to the distance. In a partial area of the receiving surface, the overlapping margin may be constant regardless of the difference in the distance from the rotation axis.

The present invention can be applied to a register device for air conditioning of a vehicle.

10 Operation Main Body 15 Ventilation Paths 18, 19 Protrusions 18x, 19x Receiving Surface 40 Shutter 41 Shutter Main Body 42, 43 Seal Part 50 Operation Dial (Operation Member)
L rotation axis

Claims (3)

In a register device for a vehicle, comprising: a register main body having a ventilation passage that blows air from an air conditioner toward a vehicle compartment; and a shutter that is rotatably supported by the register main body and that opens and closes the ventilation passage,
The shutter has a shutter body and a seal portion that is arranged on the periphery of the shutter body and is softer and elastically deformable than the shutter body.
A protrusion is formed on the inner periphery of the register body in correspondence with the seal portion, and the protrusion has a receiving surface that receives the seal portion when the shutter is closed.
When the shutter is at the set angle position for closing the ventilation passage, the seal portion is in elastically deformed state and is in contact with the receiving surface of the ridge,
The receiving surface of the ridge is biased so as to project in the opening direction of the shutter with respect to a virtual receiving surface that receives the seal portion without elastically deforming when the shutter is at the set angle position. As a result, when the shutter is at the set angular position, the seal portion is elastically deformed in accordance with the overlapping margin between the receiving surface of the ridge and the virtual receiving surface. Cage,
The vehicle register device according to claim 1, wherein the overlap margin is reduced as the receiving surface is closer to the rotation axis of the shutter. 2. The vehicle according to claim 1, wherein the receiving surface of the ridge coincides with a surface drawn by rotating the virtual receiving surface from the set angular position in the opening direction of the shutter by a predetermined angle. Register device. The vehicle register device according to claim 2, wherein the predetermined angle is 1 to 2°.

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