JP2572509B2 - Air conditioning blower for vehicles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air-conditioning blow-off device provided with an air-conditioning case and a blow-out grill installed in an air blow-out portion of an air conditioner or the like mounted on a vehicle, and more particularly, to a state in which various members are assembled. The present invention relates to an air-conditioning blow-off device for a vehicle, which has a structure in which the air-conditioning blow-out device can be directly installed in an air blow-out section without impairing the appearance.

[0002]

2. Description of the Related Art When a vehicle air-conditioning blowout device of this type is installed, for example, on a ceiling of a vehicle, both ends of a case body of the air-conditioning blowout device to which various members are attached are fixed to a ceiling panel by screwing. Next, a blind lid is attached to the screw head so as not to impair the appearance after mounting. The work of attaching the blind lid is originally unrelated to the installation of the air conditioning blower.

In order to eliminate such a problem, a screw hole is formed in the rear wall of the case body in advance, and when the air-conditioning blow-out device is mounted on the vehicle panel through the screw hole, the inside of the case body is vertically moved. Screws are screwed by a driver from outside through gaps in the louver surface formed on the front of the rotatably mounted outlet grill and gaps between a number of wind direction adjustment plates rotatably mounted inside the grill. Do
In addition to eliminating the work of attaching the blind lid, it is also practiced not to impair the appearance.

[0004]

However, according to the installation structure of the air-conditioning blow-off device, the spacing between the internal wind direction adjusting plates of the blow-off grill and the space between the front louvers are required in order to facilitate the fixing work of the screw. Must be set larger than necessary. Therefore, after installation of the air-conditioning blow-out device, the mounting screw head can be seen inside from the front of the blow-out grill as usual, which is still unsatisfactory in appearance.

The inventors of the present invention have made various studies in an attempt to solve such a problem. As a result, the blow grill can be turned by 90 ° or more with respect to the air case body, and the louver of the blow grill is sandwiched. A driver-specific insertion hole is formed in the upper and lower walls, and when the air conditioning blower is installed, the blowout grill is turned by 90 ° inside the air conditioning case body to position the upper and lower walls forward and backward, so that the rear wall of the air conditioning case body can be accommodated. If the blow-out grill is turned back by 90 ° and returned to the original position after being fixed by screws through the screw holes formed at the positions, not only the driver insertion hole becomes invisible from the outside, but also It has been found that it is sufficient to set the distance between the internal wind direction adjusting plates and the distance between the front louvers to the minimum necessary size.

The present inventors conducted further multifaceted experiments in order to confirm the above examination results. As a result, it is necessary to leave at least the driver insertion space in the portion of the outlet grill where the driver insertion hole is formed, so that the wind direction adjusting plate is required. Not only can not be installed, but also to avoid interference between the driver and the wind direction adjustment plate when installing the air conditioning blower, the wind direction adjustment plate can be rotated inside the grill as usual and the driver insertion space I knew that I couldn't put it close to. In addition, the screw often comes off from the driver during the installation work of the air conditioning blower.
In this case, the screw often falls out of the air-conditioning blowout device without stopping inside the blowout grill, or may be caught in a gap between the blowout grill and the air-conditioning case body.

SUMMARY OF THE INVENTION The present invention has been made to solve all the above-mentioned problems, and it is intended to ensure the easiness of the installation work and the appearance after the installation, and to make the connection between the driver and the wind direction adjusting plate during the installation work. The purpose of the present invention is to develop an air-conditioning blow-out device for a vehicle having a structure capable of avoiding interference and at the same time preventing a screw from falling.

[0008]

In order to achieve the above object,
The present invention has an air-conditioning case body installed at an air-conditioning air outlet of a vehicle, and a number of wind direction adjusting plates that are rotatably attached to the air-conditioning case body and that synchronize inside and rotate all at once. An air-conditioning blow-off device for a vehicle, comprising a blow-out grill having a louver surface, wherein screw holes are formed in both rear wall portions of the air-conditioning case body, and upper and lower walls sandwiching the louver of the blow-out grill are provided. A driver insertion hole communicating with the screw hole is formed, and a partition having the same shape as the wind direction adjusting plate is left between the upper and lower walls, and a screw for preventing the screw from dropping when the screw is attached. The main configuration is that the fall prevention plate is fixed.

[0009]

When the air-conditioning blowout device of the present invention is mounted on a ceiling panel or the like of a vehicle, the blowout grill is previously rotated in the air-conditioning case until the driver insertion hole and the screw mounting hole are opposed to each other. The screw mounting hole of the air-conditioning case body is brought into contact with the mounting portion, and a screwdriver is inserted into the driver insertion hole of the blowout grille, and is tightened and fixed from outside the blowout grill with screws.

At the time of the tightening and fixing, the screw drop prevention plate is located immediately below the driver insertion space, and prevents the screw from dropping when the driver is operated. When the air outlet grille is rotated to return to the air-conditioning outlet position after the air-conditioning blow-out device is mounted, the screw drop prevention plate is located in front of the screw mounting hole, and shields the screw mounting hole. The dummy adjustment plate separates the driver insertion space portion from the mounting space portion of the wind direction adjustment plate, and during installation work of the air-conditioning blowout device, even if the wind direction adjustment plate rotates, the driver operation is not hindered. Not to come, and the space portions formed at both ends of the blowout grill are simulated by the dummy adjustment plate as if the wind direction adjustment plates were provided, so that the appearance from the front of the blowout grille was improved. Is better.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG. 1 is an exploded perspective view for clarifying main components of the present invention, FIG. 2 is a perspective view of a main part showing a connecting portion structure of a double-type outlet grille according to the present embodiment, and FIG. FIG. 4 is a plan view showing the left half of the internal structure of the built-in air-conditioning case body, FIG. 4 is an explanatory view showing a working mode at the time of installation of the device of the present invention, FIG. 5 is a sectional view taken along line AA in FIG. FIG. 7 is a cross-sectional view taken along the line BB in FIG. 3, and FIG.

In FIG. 1, reference numeral 1 denotes a blow-out grill, which comprises a substantially rectangular frame having a horizontal louver surface 1b on the front surface of a grill main body 1a. As shown in the figure, a large number of wind direction adjusting plates 2 are juxtaposed at predetermined intervals in the longitudinal direction excluding the left and right ends. As shown in FIG. 6, the wind direction adjusting plate 2 has upper and lower turning shafts 2 a, which are rotatably supported on the inner surface of the blowout grill 1. Also, a number of wind direction adjusting plates 2 are connected by a single connecting rod 3 via a pin 2b, and when one wind direction adjusting plate 2 rotates about a rotation shaft 2a, the connecting rod 3 is connected. All the wind direction adjusting plates 2 are simultaneously rotated in the same direction. Therefore, an operation knob 4 for rotating operation is integrally attached to one of the wind direction adjustment plates 2. Further, a pair of left and right horizontal shaft portions 1c is provided at the center of the outer surface of the left and right side walls of the grill main body 1a to rotatably support the blowout grill 1 around the horizontal axis as shown in FIG. Is protruding. The blow grill structure described above has essentially no difference from the conventionally known structures.

According to the present invention, the outlet grill 1
In addition, as shown in FIGS. 1 and 3, a dummy adjustment plate 6 having substantially the same shape as the wind direction adjustment plate 2 is fixed to an end of the air conditioning case body 5 attached thereto, and the dummy adjustment plate 6 and the grill are fixed. The main body 1a is connected to the main body 1a by a screw drop prevention plate 7. The dummy adjustment plate 6 and the screw drop prevention plate 7 are shown in FIG.
As shown in FIG.
The fixing shaft 6a protruding from the upper and lower sides of the dummy adjustment plate 6 is formed at the right and left ends of the upper and lower walls 1d of the blowout grill 1. It is fitted and fixed in the shaft fixing hole 1e. Therefore, as shown in FIG. 1, the fixing shaft 6a has a shape in which a regular triangular prism is laid down through a flange, and one shaft fixing hole 1e is formed in a square shape. The fixing shaft 6a is prevented from rotating inside.

Further, in the present invention, a driver insertion hole 8 is formed in a portion of the upper and lower walls 1d corresponding to the space 1f surrounded by the dummy adjustment plate 6 and the screw drop prevention plate 7 of the blowout grill 1. I have. On the other hand, screw mounting holes are formed in the rear wall 5a of the left and right ends of the air-conditioning case body 5 at positions corresponding to the driver insertion holes 8 when the blow-out grill 1 is rotated 90 ° upward from a normal air-conditioning blow-out position. 5b, the blow-out grill 1 is rotated inside the air-conditioning case body 5 until the driver insertion hole 8 and the screw mounting hole 5b face each other as shown in FIG. The screw mounting hole 5b of the air-conditioning case body 5 is brought into contact with a mounting portion such as a ceiling panel, and a driver 9 is inserted into the driver insertion hole 8 of the blowing grill 1 so that a screw 10 is inserted from outside the blowing grill 1. Is fixed.

At the time of tightening and fixing, the screw drop prevention plate 7 is located immediately below the driver insertion space 1f, and prevents the screw 10 from dropping when the driver is operated. After the air-conditioning blow-out device has been installed, when the blow-out grill 1 is returned to the air-conditioning blow-out position, the screw drop prevention plate 7 shields the screw mounting hole 5b on the front surface, and at the same time, the driver insertion space 1f and the wind direction. The mounting space portion of the adjusting plate 2 is isolated from the adjusting plate 6 for disguise, and the operation of the driver due to the rotation of the wind direction adjusting plate 2 is not hindered at the time of mounting the air-conditioning blower. The hollow portions formed at both ends of the blowout grill 1 are adjusted to the dummy adjustment plate 8.
To improve the appearance of the blowout grill 1 from the front.

In the illustrated embodiment, two outlet grills 1 having the above-mentioned basic structure are supported by being connected to the air-conditioning case body 5 with the left and right horizontal shaft portions 1c being on the same line. For this reason, in this embodiment, the shaft portion support 11 is attached to the butting portion of the two outlet grilles 1, that is, the central portion of the air conditioning case body 5. Further, in the present embodiment, a pin-like projection 1e is projected from the abutting side surface of the outlet grill 1 in parallel with the horizontal shaft portion 1c at a predetermined interval in the radial direction. The outer ends of the two blow-off grilles 1 connected to each other have their horizontal shaft portions 1c fitted and supported in shaft support holes 5c formed on the left and right side walls of the air-conditioning case body 5 as in the related art. .

As shown in FIGS. 2 and 5, the coaxial portion support 11 has a rectangular plate-like spacer portion 11a and a spacer portion 11a.
a, a pair of upper and lower locking claws 11d formed at the tip of a leg 11c extending in parallel from the flange 11b, and the same from the left and right side surfaces of the spacer 11a. Left and right ring-shaped bearing portions 11e each having a center protrude. On the outer peripheral surface of each of the left and right ring-shaped bearing portions 11e, a projection 11f having an arc-shaped cross section is formed.

On the other hand, in order to mount the shaft support 11, an engaging portion 12 for engaging the pair of upper and lower locking claws 11d is integrally provided at a central portion of the air conditioning case body 5. As shown in FIGS. 3 and 5, the engaging portion 12 includes a case portion 12 a to which the leg portion 11 c of the shaft portion support 11 is fitted from the front surface of the air-conditioning case body 5, and a rear wall surface of the case portion 12 a. Each locking claw 1 formed at the tip of the leg 11c
A pair of upper and lower claw engaging holes 12b is provided which is inserted at the same time as the insertion of 1d and is engaged by utilizing the elasticity of the leg 11c.

When the shaft support 11 is attached to the engagement portion 12 of the air-conditioning case body 5, the pair of left and right ring-shaped bearings 11d of the coaxial support 11 are provided with the two blow grills 1 as described above. The horizontal shaft portions 1c protruding from the abutting side surfaces are respectively fitted and supported. At this time, the pin-like projection 1e protruding from the abutting side surface of the blowout grill 1 is located close to the outer peripheral surfaces of the pair of ring-shaped bearing portions 11e. As shown in FIG. 6, an arc-shaped guide wall 5d along the rear end shape of the wind direction adjusting plate 2 is formed at a part of the rear part of the air-conditioning case body 5, and a guide surface of the guide wall 5d is formed. A projecting portion 5e is formed at a predetermined position, and the downward turning angle of the blowout grill 1 is regulated by the projecting portion 5e.

Now, in order to attach the blow-off grill 1 having the above configuration to the air-conditioning case body 5, first fix the air-conditioning case body 5 to a ceiling panel or the like with screws 10, and then to the right end of the two blow-off grills 1, 1 and The left horizontal shaft portions 1c, 1c are respectively fitted into shaft support holes 5c, 5c formed at the side ends of the air conditioning case body 5, and the left and right outlet grills 1, 1
The horizontal shaft portions 1c, 1c at the abutting ends of the shaft support members 11 are fitted to left and right ring-shaped bearing portions 11e, 11e of the shaft portion support 11, respectively.

In this state, after the locking claws 11 d of the shaft portion support 11 are fixedly fastened to the engaging portions 12 of the air-conditioning case 5, the finisher 13 is fitted to the front surface of the air-conditioning case 5. To complete the assembly. Shaft support 1
Assembling the air conditioner case 1 with the shaft support 11
Of the spacer 11a into the engaging portion 12, and the leg 11
c is fitted to the case portion 12a, and the locking claw 11d at the tip of the leg is engaged with the claw engaging hole 1 by utilizing the elastic deformation of the leg 11c.
When the locking claw 11d passes through the claw engaging hole 12b, the leg portion 11c returns to its original shape by the operation of merely inserting the claw 2b into the claw engaging hole 12b.
At the same time, the locking claw 11d is engaged with the claw engaging hole 12b, and the mounting is completed.

The blow-out grill 1 thus assembled to the air-conditioning case body 5 has horizontal shaft portions 1c, 1c as shown in FIG.
, The pin-shaped protrusion 1 protruding from the butted side surface of the blow-out grill 1 when rotated by a predetermined angle.
e abuts on a projection 11f on the outer peripheral surface of the ring-shaped bearing portion 11e formed on the spacer portion 11a of the shaft portion support 11,
Further rotation is restricted. However, at this time, if the blower grill 1 is rotated by further increasing the rotation power, the pin-shaped projection 1e can ride over the projection 11f on the outer peripheral surface of the ring-shaped bearing portion 11e and can be rotated by the rotation angle or more. To Therefore, as shown in FIG. 4, when the air-conditioning blowout device after assembly is to be mounted on a mounting portion such as a ceiling panel,
If the blow-out grill 1 is rotated beyond the predetermined rotation angle as described above, the position of the blow-out grill 1 is maintained at that position, and the screw fastening operation is further facilitated.

According to the above-described embodiment, the downward rotation of the blow-out grill 1 is controlled by the air-conditioning case 5 as shown in FIG.
Is restricted by a protruding portion 5e formed on the guide wall 5d, and further rotation is impossible.
e, a pin-shaped projection having the same structure as that of the pin-shaped projection 1e is projected at a position symmetrical with respect to the center of rotation of the abutting side surface of the outlet grill 1, and the outer peripheral surfaces of the left and right ring-shaped bearing portions 11d. If the projections 11e and the projections each having an arc-shaped cross section are newly protruded at a symmetrical position with respect to the center of rotation, the blowout grill 1 can be rotated at a predetermined rotation angle. To be able to rotate both up and down.

[0024]

As is apparent from the above description, according to the air-conditioning blow-out device of the present invention, when the device is to be mounted on a ceiling panel or the like of a vehicle, the blow-out grill mounted inside the air-conditioning case body. By turning 90 degrees from the normal air-conditioning blow position, the driver insertion hole faces the screw mounting hole of the air-conditioning case body, and by operating the driver from the outside of the blow-out grill, the screw is screwed through the screw mounting hole to the ceiling panel, etc. It is possible to make it stop. Moreover, according to the present invention, since the screw drop prevention plate is provided, not only is it possible to prevent the screw from falling off from the driver during the installation work of the air conditioning blower, but also if the screw comes off from the driver. The work is received on the fall prevention plate, and the work can be easily continued. Further, in the present invention, the driver insertion space of the blow-out grill and the mounting space of the wind direction adjustment plate are separated by the dummy adjustment plate, so that the operation of the driver by the wind direction adjustment plate is not hindered. After the attachment, the dummy adjustment plate looks like a wind direction adjustment plate, so that the appearance is excellent.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an example of a mounting structure of a blowout grill constituting a main part of the present invention.

FIG. 2 is a perspective view of a main part showing a structural example of a continuous portion of the dual outlet grille according to the embodiment.

FIG. 3 is a plan view showing a half part of the internal structure of the air conditioning case body.

FIG. 4 is an explanatory view showing a work mode at the time of installing the apparatus of the present invention.

FIG. 5 is a sectional view taken along line AA in FIG. 3;

FIG. 6 is a sectional view taken along line BB in FIG. 3;

FIG. 7 is an overall perspective view of an air-conditioning case body to which an outlet grill and a finisher are attached.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 blowout grill 1a grill main body 1b horizontal louver surface 1c horizontal shaft portion 1d upper and lower walls 1e pin-shaped projection 1f driver insertion space 2 wind direction adjustment plate 2a support shaft 2b pin 3 connecting rod 4 operation knob 5 air conditioning case body 5a rear wall 5b screw mounting Hole 5c Shaft support hole 5d Guide wall 5e Projection 6 Simulated adjustment plate 6a Fixed shaft 7 Screw drop prevention plate 8 Driver insertion hole 9 Driver 10 Screw 11 Shaft support 11a Spacer 11b Flange 11c Leg 11d Locking claw 11e Ring-shaped bearing portion 11f Projection 12 Engagement portion 12a Case portion 12b Claw engagement hole 13 Finisher

Claims (1)

(57) [Claims] An air-conditioning case body (5) installed at an air-conditioning air outlet of a vehicle, and a number of wind directions rotatably mounted on the air-conditioning case body (5) and synchronously rotating inside the air-conditioning case body. An air-conditioning blow-off device for a vehicle, comprising: an adjusting plate (2); and a blow-out grill (1) having a louver surface (1b) on a front surface, wherein the air-conditioning case body (5) has both end rear walls. A screw mounting hole (5b) is formed in (5a), and a driver insertion hole (5d) communicating with the screw mounting hole (5b) is formed in upper and lower walls (1d) sandwiching the louver surface (1b) of the blowout grill (1). 8) and the upper and lower walls (1)
A dummy adjustment plate (6) having the same shape as the wind direction adjustment plate (2) except for a driver insertion space (1f) between d).
And a screw fall prevention plate (7) for preventing a screw from falling when the screw is mounted.