JPS5822806Y2 - Structure for assembling parts into ventilation duct openings - Google Patents

Description

[Detailed description of the invention] This invention is a blow-molded plastic ventilation duct, in which an opening is provided in the middle of the ventilation duct, and an assembly for installing parts such as a sliding door or a grill in this opening. Regarding the attached structure, it is used, for example, as a knee outlet of an air conditioner for an automobile.

The knee air outlet in an automobile air conditioner is provided in the middle of a ventilation duct that extends from the center air outlet to the left and right air outlets.

This ventilation duct is made of blow-molded plastic, for example, and has an opening provided in the ventilation duct, and a sliding door attached to the component assembly member attached to the opening.
The knee air outlet is constructed by assembling parts such as a grill.

The component assembly member is formed with a window corresponding to the opening of the ventilation duct, and when a sliding door is assembled to this component assembly member, the window of the component assembly member is opened by sliding the sliding door. The opening degree is adjusted to control the air blown out from the knee outlet.

However, in this type of conventional component assembly structure, the component assembly member is riveted to the wall around the opening of the ventilation duct, or the fitting claw provided on the component assembly member is fixed to the wall around the opening of the ventilation duct. It is fitted and attached to the wall around the opening.

Therefore, in the former riveting method, when the opening is far from both ends of the ventilation duct and the opening area of the opening is small, such as the knee outlet of the above-mentioned automobile air conditioner, However, since it is impossible to insert a caulking tool or the like inside the ventilation duct, there is a drawback that the work of caulking the rivet is extremely difficult.

In addition, in the latter method using fitting claws, if the ventilation duct is made of blow molding, the thickness of the wall around the opening of the ventilation duct is not constant. It is impossible to match all the rising heights and the corresponding wall thicknesses, which has the disadvantage of causing looseness in the component assembly members.

Therefore, in order to eliminate the above-mentioned drawbacks, this invention has been developed by fitting and fixing one of the frames of the component assembling member into the wall surrounding the opening by sandwiching the window of the component assembling member, and fixing the other frame of the component assembling member to the wall surrounding the opening. By using the smartly provided arms to clamp and fix the wall around the opening, it is possible to easily attach the parts assembly member even to a small opening, and there is no play. The purpose is to provide a parts assembly structure.

Examples of this invention will be described below with reference to the drawings.

1 to 3, an embodiment of the parts assembly structure of this invention is shown, in which an opening 2 is provided in a ventilation duct 1,
A component assembly member 3 is attached to the opening 2 of the ventilation duct 1, and a slide door 4, for example, is further assembled to the component assembly member 3.

The ventilation duct 1 is made of, for example, blow-molded plastic, and has an opening 2 as shown in FIGS. 4 and 5.

This opening 2 has a notch 2b formed by cutting out a part of the wall around one side of a rectangular window 2a in a semicircular shape, and a notch 2b formed around the entire circumference of the opening 2. The surface 2c is formed to protrude outward.

As shown in FIG. 5, such an opening 2 is manufactured by cutting a protrusion 5, which is a part of the ventilation duct 1 protruding outward, at a cutting line indicated by a two-dot chain line during blow molding of the ventilation duct 1. This is done by cutting at the cutting line, and a rising surface 2c remains inside the cutting line.

The reason why the rising surface 2c is left in this way is to prevent other surfaces of the ventilation duct 1 from being damaged.

As shown in FIG.
is formed corresponding to the window 2a of the opening 2 of the ventilation duct 1.

A fitting portion 8 having a substantially U-shaped cross section is provided at one end of the frame 6, sandwiching the window 7 therebetween.

The fitting portion 8 is fitted into the wall of the ventilation duct 1 on the side opposite to the notch around the opening 2.

Further, a circular recess 9 is formed inwardly on the other side of the frame 6 with the window 7 in between, and an arm 10 is attached to the lower surface of this recess 9.

This arm 10 is composed of a flexible part 10a that is fixed to the recessed part 9 at one end and has flexibility, and an elastic part 10b that is fixed to the other end of the flexible part 10a and has elasticity. 10b protrudes into the window 7.

Then, as shown in FIG. 7, the recess 9 of the frame 6 enters the notch 2b of the opening 2 of the ventilation duct 1, and the arm 1
0 is bent by 180 degrees at the flexible portion 10b, and this arm 10
The elastic member 10a fits the two fitting claws 11a and llb provided near the center of the elastic part 10b into the fitting hole 12 formed in the recess 9, thereby recessing the recess 9 of the frame 6.
is fixed.

Further, protrusions 13a, 13 provided on both sides of the elastic portion 10a
b, 13c.

13d presses the back surface of the wall around the opening 2 of the ventilation duct 1 on the side opposite to the fitting part, and the frame 6 abuts against the rising surface 2c of the opening 2 to prevent the unfitting around the opening 2. The wall on the side of the recessed part is sandwiched between the elastic part 10a and the frame 6.

The elastic part 10b has central fitting claws 11a, 11b fixed to the recessed part 9 of the frame 6, and protrusions 13a, 13b, 13 on both sides.
c, 13d and elastic force acts on the fitting claw 11a.
, 11b are applied with a tensile force.

In this embodiment, fitting claws 11a and 11b are provided on the elastic portion 10b of the arm 100, and fitting holes 1 are provided on the recessed portion 9 of the frame 6.
However, in other embodiments, it is of course possible to provide a fitting hole in the elastic part 10b of the arm 100 and a fitting claw in the recessed part 9 of the frame 6. Furthermore, other fixing means such as using a tapping screw may also be used.

As shown in FIG. 8, the sliding door 4 assembled to the component assembly member 3 has sliding parts 14a and 14 on both sides.
b is erected, and this slide portion 14 a t 14 b
Slide pieces 15a and 15b.

15c and 15d are provided so as to protrude inward.

And the sliding piece 15a of this sliding door 4,
15b, 15c, and 15d are slidably assembled on rails 16at16b provided on both sides of the component assembly member 30.

Therefore, by moving the grip part 17 provided on the front side of the sliding door 4 in the left-right direction in FIG. 1, the opening degree of the window 1 of the component assembly member 3 is adjusted.

A closing stopper 18 is provided at the center of the front side of the door closing side of the frame 6 of the component assembly member 3 so as to protrude toward the front side, and a closing stopper 18 is provided at the door opening side end of the rail 16 a t 16 b of the component assembly member 3. A full-opening stopper 19 is provided at , and movement of the sliding door 4 is regulated by the closing stopper 18 and the full-opening stopper 19 .

Furthermore, the sliding piece 15 a t 1 of the sliding door 4
5 b t 15 c t 15 d each has a protrusion 20, and the rail 16 a t 16 of the component assembly member 3
A plurality of grooves 21 are formed in b to provide moderation in accordance with the movement of the sliding door 4.

(Refer to Fig. 9) In this embodiment, the sliding door 4 is assembled to the parts assembly member 3, but in other embodiments, a grill etc. is assembled to the parts assembly member 3. You may do so.

In the above configuration, in order to obtain the parts assembly structure of this invention, first, the fitting part 8 of the parts assembly member 3 is fitted into the opening 2 of the ventilation duct 1 into the wall around the opening 2, and the arm 10 is fitted into the wall around the opening 2. The elastic part 10b of the arm 10 is fixed to the recessed part 9 of the frame 6 by inserting a finger through the window 7 and bending the flexible part 10a to the back side.

Next, the sliding door 4 is slightly curved and the sliding door 4 is
The slide portions 14 a t 14 b of the parts assembly member 3
The slide door 4 is inserted into the rails 16 a and 16 b of the component assembly member 3 from the fitting part 8 side.
Complete by assembling.

It goes without saying that the slide door 4 and the component assembly member 3 may be assembled before the component assembly member 3 is attached to the opening 2 of the ventilation duct 1.

As described above, according to this invention, in a component assembly structure in which a component such as a sliding door is assembled through an opening assembly member of a ventilation duct, the window of the component assembly member is sandwiched between the parts assembly members. One side of the frame is fitted and fixed to the wall around the opening, and the other side of the frame is used to clamp and fix the wall around the opening using the neatly provided arms. Even if the opening is small or there is not much space around it, the component assembly member can be easily attached to the opening, and a component assembly structure that does not cause looseness can be provided.

[Brief explanation of the drawing]

1 to 3 show an embodiment of the parts assembly structure of this invention, FIG. 1 is a front view, FIG. 2 is a sectional view taken along line A-A in FIG. 1, and FIG. It is a BB line sectional view of FIG.
Figure 5 shows the opening of the ventilation duct, Figure 4 is a front view,
FIG. 5 is a sectional view taken along the line C-C in FIG. 4, and FIG. 6 is a perspective view of the parts assembly member used in this invention, seen from the back side.
Fig. 7 is a perspective view from the back showing the state before the above component assembly member is attached to the opening, Fig. 8 is a perspective view from the back showing the sliding door used in this invention, and Fig. 9 FIG. 2 is a cross-sectional view showing a state in which the sliding door according to the above is assembled to a rail of a component assembly member. DESCRIPTION OF SYMBOLS 1... Ventilation duct, 2... Opening, 3... Parts assembly member, 4... Sliding door, 6... Frame, 7...
Window, 8... Fitting part, 10... Arm, 10a... Flexible part, 10b... Elastic part.

Claims (1)

[Scope of utility model registration request] In a parts assembly structure in which an opening 2 is provided in the ventilation duct 1, a parts assembly member 3 is attached to this opening 2, and a part 4 such as a sliding door or a grill is assembled to this part assembly member 3, A window 7 is formed in the component assembling member 3, and a fitting portion 8 having a substantially U-shaped cross section is provided on one side of the frame 6 of the component assembling member 3, sandwiching the window 7. An arm 10 is fitted into a part of the wall of the opening 2 and is provided on the other side of the frame 6, and this arm 10 has a flexible portion 10a fixed at one end to the frame 6, and a flexible portion 10a. The arm 10 is bent at the flexible part 10a, and the elastic part 10b is attached to the frame 6 on the side of the opening 20 of the ventilation duct 1 opposite to the fitting part. A structure for assembling parts into an opening of a ventilation duct, characterized in that the parts are fixed in a sandwiching manner.