JPH0712109Y2 - Defroster nozzle - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a nozzle for a vehicle defroster (defroster), and is particularly used as a defroster nozzle for an automobile windshield and both side windows. Is.

[Conventional technology]

In automobiles, defrosters applied to the windshield and the side glasses on both sides of the windshield have been conventionally used.

For example, a defroster nozzle of the type shown in FIGS. 5A and 5B has been conventionally used, and this is formed by dividing it into two vertically divided parts and then joining them into one nozzle.

As is clear from the figure, the half of the molded product 110 has the partition wall 1
3'is formed by projecting in the horizontal direction, and in the other half of the molded product 120, a concave groove 123 for fitting the tip of the horizontal partition wall 13 'when the nozzle is assembled is integrated by the upper and lower projecting edges 121, 121. Molded. When the nozzle is assembled, the partition wall 13 ′ and the recessed groove 123 are arranged such that the partition wall 13 ′ forms an upper air passage P ₁₀ for the front defroster and a lower air passage P ₂₀ for the side defroster inside the nozzle. To the windshield through the outlet B from the upper air passage P ₁₀ and the side defroster (not shown) from the lower air passage P ₂₀ through the connecting ports 14 'on both sides. It is designed to output a fixed ratio of air flow. The ratio of the blown air flow to both defrosters is determined by the areas S ₁ and S ₂ distributed by the partition wall 13 'in the connecting cylinder 21' below the nozzle.

In the figure, C ₂ is a locking claw, which is engaged with the engagement hole C ₁ , and 112 and 122 are lower end joint edges, which are joined by a conventional appropriate means.

[Problems to be solved by the invention]

Although the above-mentioned conventional example has been improved so that the air flow can be distributed to the front defroster and the side defroster at a set ratio, the defroster nozzle is divided into left and right partitions.
Since 13 'is formed by projecting horizontally, the front defroster air passage P ₁₀ and the side defroster air passage P ₂₀ are vertically partitioned at the overhanging ends E, E on both sides of the nozzle.

Therefore, since the air passage is partitioned by the partition wall 13 'that is substantially continuous from the connecting cylinder portion at the lower portion of the nozzle to the nozzle end portion E, in order to prevent interference and improve the flow of air to the side defroster as described above. When changing the shape of the defroster nozzle, the partition wall 13 'of the mold and the protruding edge 12
All of the 1,121 parts had to be modified, and changing the shape of the defroster nozzle required time and cost for mold making.

An object of the present invention is to provide a defroster nozzle that solves these problems, and in particular, prepare a plurality of partition plates of arbitrary shape that can be fixed at the same fixing portion, and connect the partition plates detachably. The defroster nozzle is installed in the cylinder to adjust the air volume to an arbitrary value.

[Means and Actions for Solving Problems]

For example, as shown in FIG. 1, a defroster nozzle is composed of two members, an upper defroster nozzle 1 and a lower defroster nozzle 2. Partition walls 13 and 13 are erected in the upper defroster nozzle 1 and the inside of the nozzle is a front defroster nozzle. partition back and forth and side air passages P _2, P ₂ of the front air passage P ₁ and the side defroster of use, the partition plates 3 in the lower defroster nozzle bottom of the connecting cylinder 21 of the 2 ', 3', 3 Is arranged to distribute the airflow entering the connecting cylinder 21 to the front air passage P ₁ and the side air passages P ₂ and P _2, and also to partition plates 3 and 3 in the connecting cylinder 21. ′,
3 ″, 3 is separate from the connecting cylinder 21, and the partition walls 3, 3 ′, 3 ″, 3 are fixed to a fixing portion formed at a predetermined position in the connecting cylinder 21.

The distribution of the amount of air supplied to the front defroster and the side defroster in the upper defroster nozzle 1 is set so that the partition plates in the lower defroster nozzle 2 are fixed at the same fixing portion, so only the shape of the partition plate is required. You can decide with. Therefore, it is possible to change the flow rate distribution to both air passages P ₁ and P ₂ only by changing the shape of the partition plate to an arbitrary shape.

Further, since the defroster nozzle is composed of the upper and lower members, the workability of assembling is improved.

〔Example〕

(Example 1) As shown in FIG. 1 and FIGS. 2A and 2B, the upper defroster nozzle has partition walls 13 and 13 which are erected from the bottom surface in a substantially shape so that the air passage P ₁ in front of the nozzle chamber and the wind on both sides are formed. partition the road P _2, P _2, on the bottom face, central opening H ₁ and air passage P ₂ which communicates with the air passage P _1, P
₂ is provided with side openings H ₂ and H ₂ communicating with ₂ , and the air passages P ₂ and P ₂ are provided.
From which the connection ports 14, 14 for communication are extended to the side, and the upper edge of the peripheral wall is the fitting edge 11, and the thickness is made of ABS resin.
It was formed with 1.2 mm.

The lower defroster nozzle 2 has a rectangular connecting tube 21 for communication in the central portion, overhanging chambers 22, 22 on both upper sides, and a pair of mounting pieces 25, 25 projecting forward from the outer wall of the overhanging chamber bottom. Then, two pairs of the stop holes 24 are formed through the lower front wall and the rear wall of the connecting cylinder 21 and two pairs of the stop holes 23 are formed on the upper edge of the connecting cylinder, and the ABS is formed in the same manner as the upper defroster nozzle. Thickness 1.2mm depending on resin
Formed by.

The partition plate 3 has an engaging projection 34 projecting from a lower side surface and a downward T-shaped engaging projection 33 projecting from an upper end so that the partition plate 3 can be fixed to the connecting cylinder 21 at the same fixing portion, and the plate width of the connecting cylinder 21 is smaller than that of the connecting cylinder 21. A plurality of different shapes formed by ABS resin were prepared for the shape extending between the front and rear walls. (Fig. 1 (c),
(See (d) and (e)) The lower defroster nozzle 2 is used to assemble the defroster nozzle.
The urethane sponge packing 4 is attached to the upper flange 27 of the above, then the attachment piece 25 is brought into contact with a vehicle body member (not shown), and is fastened with a screw to the vehicle body frame (not shown) through the screw hole 26.

Next, as shown in FIG. 3, the upper defroster nozzle 1 is covered with the urethane foam sealing material 4'over the entire length of the upper edge of the partition wall 13, and then the instrument panel 5 with the pad 6 attached on the upper surface thereof. The fitting edge 11 of the nozzle 1 is fitted into the fitting groove 5 '.
Is pressed in, the front fastening edge 12 is brought into contact with the front end face of the instrument panel, and is fastened with the bolt 10 through the bolt hole 10 ', and then the instrument panel 5 to which the upper defroster nozzle 1 is assembled. The lower surface of the upper nozzle 1 is brought into contact with the upper edge of the lower defroster nozzle 2.

Then, the outlet 7 of the front defroster is fitted into the front opening 0 of the instrument panel, and the connection port 14 of the defroster nozzle and the side defroster (not shown) are connected by a pipe.

In the obtained defroster nozzle, the air flow blown from the connecting cylinder 21 flows from the central opening S ₁ between the partition plates 3 and 3 to the front defroster air passage P ₁ through the central opening H ₁ of the upper defroster nozzle ₁ . , The side defroster air passages P ₂ and P ₂ from the openings S ₂ and S ₂ on both outer sides of the partition plate 3 through the openings H ₂ and H ₂ on both sides, and by the action of the partition wall 13, the front defroster and the side defroster are provided. A predetermined flow rate was blown out.

When changing the air blowing ratio between the front side and the side side by changing the shape of the defroster nozzle, change the partition plate 3 in the connecting cylinder 21 of the lower defroster nozzle to the partition plate 3'or the partition plate 3 ". As a result, it was possible to achieve a predetermined air flow ratio and easily achieve a design change of the defroster nozzle.

Further, since the fixing position of the partition plate to the connecting cylinder is set to the same fixing portion, it is not necessary to modify the mold of the defroster nozzle when changing the blowing ratio, so that the blowing ratio can be adjusted at low cost.

Further, since the front defroster air passage and the side defroster air passage are juxtaposed side by side in the upper defroster nozzle 1, as compared with the conventional product shown in FIGS. , Vertical thickness D is about 1 /
2. The width W in the front-rear direction was approximately doubled.

Further, since the inflow amount into the side defroster air passage P ₂ and the front defroster air passage P ₁ is sorted upstream of the upper defroster nozzle 1, the air blown out from the front defroster is diffused in the upper defroster nozzle 1. The performance as a defroster is improved, and at the time of assembly, the lower defroster nozzle 2 is assembled in advance to the heater unit, and then the upper defroster nozzle 1 integrated with the instrument panel 5 is assembled. The workability was also improved.

Also, in the defroster nozzle, the increase in the width in the front-rear direction has a large dimension in the front-rear direction of the instrument panel, and since it is placed under the instrument panel and does not cause any trouble in interference with other interior parts, the thickness in the up-down direction is reduced. It has a practical effect in that it has the advantage of being reduced, that is, it can be installed without any hindrance to the side defroster while avoiding interference with other interior parts.

(Example 2) In Example 1, only the fixing part and the fixing method of the partition plate 3 to the lower defroster nozzle 2 were changed as shown in FIG. That is, as shown in FIG. 4 (a), in the lower defroster nozzle 2, the central connecting tube 21 is a rectangular tube having the same width in the vertical direction, and concave grooves 24 ', 24' having an arcuate cross section are formed on the inner surface of one side wall on the other side wall. Blind hole 24, 24
As shown in FIG. 4 (b), the partition plate 3 is provided with a rib 34 'having a spherical cross section at one side edge and an engaging projection at the other side edge.
The shape has 34, 34.

The partition plate 3 could be fitted to the lower defroster nozzle from below or from above. That is, the partition plate is inserted obliquely into the connecting cylinder 21 from above or below,
After fitting 34, 34 into the stop holes 24, 24, the partition plate was rotated to fit the rim bone 34 'into the groove 24' by press fitting. As shown in FIG. 4 (c), the partition plate 3 having a notch 30 at the lower edge thereof.
It is the same as in Example 1 that the blowing ratio to the air passage P ₁ and the air passage P ₂ is changed by appropriately using the partition plate 3 shown in FIG.

Therefore, as compared with Example 1, the partition plate 3 can be easily attached and detached. Other than that, the same effects as in Example 1 were obtained.

[Effect of device]

The change of the air flow rate to be sent to the front defroster air passage P ₁ and the side defroster air passage P ₂ can be adjusted only by exchanging the partition plate fixed at the same fixed portion, so that the mold of the defroster nozzle is not modified. It is also good, and it is possible to deal with the change of the air blowing ratio of the defroster nozzle at a much lower cost than the conventional product.

In addition, the flow rate of air flowing into the side defroster air passage P ₂ and the front defroster air passage P ₁ depends on the upper defroster nozzle 1
The air blown out from the front defroster is diffused in the upper defroster nozzle 1 before being flowed into the upper defroster nozzle 1, so that the performance as the defroster is improved.

Further, since the defroster nozzle is a combination of upper and lower members, when assembling the upper defroster nozzle 1 integrated with the instrument panel 5 after assembling the lower defroster nozzle 2 to the heater unit in advance. As it is assembled, workability can be improved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a defroster nozzle of the present invention, where (a) is an upper defroster nozzle, (b) is a packing, and (c) is a lower defroster nozzle. . Further, (d) is a partition plate, and (e) is another partition plate. FIG. 2A is a front view of the defroster nozzle of the present invention in a joined state, and FIG. 2B is a plan view thereof. FIG. 3 is a schematic sectional view of the defroster nozzle of the present invention mounted on an automobile. FIG. 4 is a perspective view showing a modified example of the partition plate attaching means of the present invention. 5A and 5B show a conventional defroster nozzle,
FIG. 5A is a partial sectional view of the nozzle, and FIG. 5B is a schematic view in which the defroster nozzle is separated. 1 ...... upper defroster nozzle, 11 ...... fitted edges, 12 ...... Tomegien, 13 ...... partition wall, 14 ...... connection port, P ₁ ...... front defroster air passage, P ₂ ...... side defroster air passage, 2 ……
Lower defroster nozzle, 21 …… connecting cylinder, 22 …… overhanging chamber, 23,24 …… stop hole, 25 …… mounting piece, 26 …… bolt hole, 2
7 …… Abutment edge, 3,3 ′, 3 ″, 3 …… Partition plate, 33,34 ……
Engagement protrusions 4 ... Packing.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masaaki Yamai 1 Toyota-cho, Toyota-cho, Aichi Prefecture Toyota Automobile Co., Ltd. (72) Inventor Eiichi Tatezawa 1-cho, Toyota-cho, Aichi Prefecture Toyota-automobile Co., Ltd. (56) References Actual Open Sho 59-147615 (JP, U) Actual Open Sho 61-43566 (JP, U) Actual Open Sho 60-176912 (JP, U) Actual Public Sho 59-19614 (JP, Y2)

Claims (1)

[Scope of utility model registration request] 1. A defroster nozzle is composed of two members, an upper defroster nozzle (1) and a lower defroster nozzle (2), and a partition wall (1) is formed in the upper defroster nozzle (1).
3, 13) is erected, and the inside of the nozzle is partitioned into a front air passage (P ₁ ) for the front defroster and a side air passage (P ₂ , P ₂ ) for the side defroster, and the lower defroster is installed. Partition plates (3,3 ', 3 ", 3 in the connecting cylinder (21) of the nozzle (2)
) Is arranged so that the airflow entering the connecting cylinder (21) is distributed to the front air passage (P ₁ ) and the side air passages (P ₂ , P ₂ ). Partition plate inside (21) (3,
3 ', 3 ", 3) is separated from the connecting cylinder (21) and the connecting cylinder (2
1) The partition plate (3,
Defroster nozzle characterized by fixing 3 ', 3 ", 3).