JPH0629526Y2 - Parts assembly structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an improvement in a component assembly structure.

(Prior Art) Generally, a side demister grill or a duct is assembled to an instrument panel of a vehicle such as an automobile. Since the side demister grill and the duct are arranged close to each other, the assembly location may be shared. In this case, in order to assemble the side demister grill and the duct to the instrument panel, as shown in FIG. 8, one end (right end)
An elastically deformable metal bracket c having a fitting hole a formed on the side and a pair of mounting claws b projecting inward from the inner circumference of the fitting hole a so as to face each other is prepared. On the other hand, as shown in FIG. 9, a bracket mounting portion d is formed so as to project from the instrument panel. Next, by fitting the fitting hole a of the bracket c to the bracket mounting portion d, the mounting claws b are brought into contact with the outer peripheral surface of the bracket mounting portion d to bend, and the bending reaction force causes The bracket c is supported by the bracket mounting portion d and mounted. Then, the mounting portion of the side demister grill is made to correspond to the mounting hole e formed on the other end (left end) side of the bracket c and screwed, and the side demister grill is attached to the instrument panel via the bracket c. On the other hand, while being assembled, the duct is screwed to the end of the bracket mounting portion d and assembled to the instrument panel.

(Problems to be solved by the invention) However, in the above-described conventional component assembly structure, the bracket c is supported by the bracket mounting portion d by the bending reaction force of each mounting claw b that abuts the outer peripheral surface of the bracket mounting portion d. Since it is attached, when the side demister grill is attached to the bracket c, the pressing force acts on the bracket c, and the bracket c is rattling. Therefore, there is a gap between the side demister grill and the instrument panel. However, there was a problem in that the assembly accuracy of both could be reduced. Therefore, it is conceivable to eliminate the rattling of the bracket c by tightening the outer fitting state of the bracket c with the bracket mounting portion d.
In this case, it becomes difficult to attach the bracket c to the bracket attachment portion d.

The present invention has been made in view of the above points, and an object thereof is to mount a bracket when assembling a second component such as a side demister grill to a first component such as an instrument panel of a vehicle such as an automobile as described above. By making the claws hard to fit into the bracket mounting portion, the mounting strength of the bracket is strengthened and the rattling of the bracket when mounting the second component to the bracket is eliminated, whereby the first component and the second component are connected. The purpose is to reliably improve the assembling accuracy of both by preventing the occurrence of the gap. Another object is to facilitate the operation of attaching the bracket to the bracket attaching portion.

(Means for Solving the Problem) In order to achieve the above object, the solution means of the present invention is
A bracket made of metal is attached to the bracket mounting portion made of a synthetic resin formed to project on the component by fitting the fitting hole formed at the one end thereof to the outside, and the second component is attached to the other end of the bracket. Thus, the object of the present invention is a part assembly structure in which the second part is assembled to the first part through the bracket. In this case, the bracket mounting part of the first part is provided with a notch in the bracket fitting direction. . On the other hand, a mounting claw is formed on the inner circumference of the fitting hole of the bracket so as to project inward, and the bracket mounting claw is attached to the bracket mounting part with the notch of the bracket mounting part of the first component corresponding to the mounting claw of the bracket. By fitting the fitting hole of the bracket to the outside, then rotating the bracket around the bracket mounting portion so that the mounting claw is hard to fit into the bracket mounting portion, and the second component is mounted on the other end side of the bracket. , The second part is assembled to the first part via the bracket.

(Operation) With the above-described structure, in the present invention, the fitting hole formed at one end of the metal bracket has the mounting claw formed on the inner periphery thereof so as to project radially inward so as to project to the first part. The bracket is made to fit into the notch of the synthetic resin bracket mounting section, and then is externally fitted to the bracket mounting section.Then, the bracket is rotated around the bracket mounting section and the mounting claw is removed. The second component is attached to the first component via the bracket by being fitted into the bracket attachment portion and attaching the second component to the other end side of the bracket.

From this, even if the pressing force at the time of mounting the second component acts on the bracket, the bracket is prevented from rattling due to the strengthening of the mounting strength by the biting of the mounting claw into the bracket mounting portion. A gap is prevented from being generated between the second parts, and the assembling accuracy of the two parts is surely improved.

Furthermore, since the mounting claws of the bracket are externally fitted to the bracket mounting parts in a state of being made to correspond to the notches of the bracket mounting parts of the first component, the mounting claws are not The contact with the mounting portion is avoided by the notch, and therefore, thereafter, it is only necessary to rotate the bracket around the bracket mounting portion so that the mounting claw is pushed into the bracket mounting portion. This facilitates the attachment operation of the.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a case where the component assembly structure according to the embodiment of the present invention is applied to an instrument panel of a vehicle such as an automobile. In this embodiment, a second instrument panel 1 made of a synthetic resin is used as a first component. The case where the side demister grill 2 also made of synthetic resin as a part and the duct 3 made of synthetic resin as a third part are assembled is shown.

On the back side of the instrument panel 1, a bracket mounting portion 4 made of synthetic resin is integrally formed so as to project downward, and on both sides of the bracket mounting portion 4, as shown in FIG. 2 and FIG. The notches 5 and 5 are formed in the bracket fitting direction (the protruding direction of the bracket mounting portion 4). Further, a tapping hole 6 extending from the tip (lower end) to the base end (upper end) side is formed in the bracket mounting portion 4, and a screw 7 is screwed into the tapping hole 6 to install the duct 3 in the instrument panel. It is designed to be attached to 1. Further, the bracket mounting portion 4 is provided on both sides of the notch portions 5 and 5 of the bracket mounting portion 4.
Ribs 8 extending in a direction orthogonal to the above are integrally formed, and the ribs 8 are used to position the upper mounting position of a bracket 9 described later. Further, a protrusion 8a protruding downward is formed at one end of the rib 8 (on the back side of the paper surface in FIGS. 1 and 2) of the both ribs 8 and 8, and the protrusion 8a surrounds the circumference of the bracket 9. The mounting position in the direction is positioned.

In addition, one end (right end) side of a metal bracket 9 formed by being bent so that a step is formed up and down with the center as a boundary is attached to the bracket attaching portion 4. As shown in FIGS. 4 and 5, a fitting hole 10 is formed on one end side of the bracket 9, and a pair of sharpened attachment claws 11 and 11 are formed on the inner circumference of the fitting hole 10.
Are integrally formed so as to project inward in the radial direction so as to face each other, and the sharp tip end of each mounting claw 11 is bent so as to be located below the fitting hole 10.
Accordingly, when the bracket 9 is mounted on the bracket mounting portion 4, when the bracket 9 is rotated in the circumferential direction, the mounting claws 1 are mounted.
1 rotates so as to cut a thread, and the bracket 9 is moved upward by an angle corresponding to the rotation angle and is pressed against each rib 8. Also, the both mounting claws 11,
The distance between the bracket mounting portions 4 is set to be slightly larger than the distance between the notches 5 and 5 of the bracket mounting portion 4 so that the bracket mounting portion 4 can be inserted into the fitting hole 10. Further, a notch 12 is formed in the corner portion of the bracket 9 on the side of the fitting hole 10, and each notch 5 of the bracket mounting portion 4 is made to correspond to each mounting claw 11 of the bracket 9. As shown in FIG. 6, the fitting hole 10 of the bracket 9 is externally fitted to the bracket mounting portion 4, and then, as shown in the enlarged detail of FIG. The rib 8 is rotated around the bracket mounting portion 4 until it comes into contact with the protrusion 8a. On the other hand, the other end (left end) of the bracket 9
A hole 13 is formed on the side for passing a screw. And
The side demister 2 is formed by screwing a screw 15 into the hole 13 of the bracket 9 into a tapping hole (not shown) of a bracket mounting portion 14 made of synthetic resin and formed integrally with the side demister grill 2 so as to project downward. Is attached to the opening 1a of the instrument panel 1 via the bracket 9.

Next, a procedure for assembling the side demister grill 2 and the duct 3 to the instrument panel 1 will be described.

First, as shown in FIG. 6, the instrument panel 1
Bracket 9 in both notches 5 and 5 of bracket mounting part 4
With both mounting claws 11 and 11 of the bracket 9 fitted together, the fitting hole 10 of the bracket 9 is externally fitted to the bracket mounting portion 4 and moved upward to bring the bracket 9 into contact with the ribs 8 and 8. Position vertically.

Next, as shown in FIG. 7, the bracket 9 is rotated around the bracket mounting portion 4 in the direction of the arrow in FIG. 6 so that the mounting claws 11 are inserted into the bracket mounting portion 4 and the notch 12 of the bracket 9 is inserted. Is brought into contact with the projection 8a of the rib 8 for circumferential positioning. As a result, one end (right end) side of the bracket 9 is attached to the bracket attachment portion 4 of the instrument panel 1.

After that, the side demister grill 2 is set in the opening portion 1a of the instrument panel 1 from above, and the tapping hole of the bracket mounting portion 14 of the side demister grille 2 is screwed into the hole 13 of the bracket 9. The demister 2 is attached to the opening 1a of the instrument panel 1 via the bracket 9. On the other hand, set the duct 3 on the back side of the instrument panel 1,
The duct 3 is assembled to the instrument panel 1 by screwing a screw 7 into the tapping hole 6 of the bracket mounting portion 4 and the screw hole of the duct 3.

Thus, in this embodiment, the fitting hole 10 of the bracket 9 is
Both mounting claws 1 formed on the inner circumference to project radially inward
The fitting holes 10 are externally fitted to the bracket mounting portion 4 in a state where the fitting holes 1 and 11 are made to correspond to both the notches 5 and 5 of the bracket mounting portion 4 of the instrument panel 1, and then the bracket 9 is attached. Rotate around the bracket mounting portion 4 so that the mounting claws 11 are hard to fit into the bracket mounting portion 4.
By attaching the side demister 2 to the bracket 9, the side demister grill 2 is assembled to the instrument panel 1 via the bracket 9.

From this, even if the pressing force at the time of mounting the side demister grill 2 acts on the bracket 9, the bracket 9 may be rattled by strengthening the mounting strength by the biting of the mounting claws 11 into the bracket mounting portion 4. Without this, a gap between the side demister grill 2 and the instrument panel 1 can be prevented from occurring, and the assembling accuracy of both can be surely improved.

Further, in the above embodiment, each mounting claw 11 of the bracket 9 is
With the bracket mounting portion 4 of the instrument panel 1 in correspondence with the respective cutout portions 5.
It is possible to avoid the mounting claws 11 from coming into contact with the bracket mounting portion 4 during the fitting because they are externally fitted to each other. Therefore, after that, the bracket 9 is rotated around the bracket mounting portion 4 and then each of the brackets is rotated. It is only necessary to insert the mounting claw 11 into the bracket mounting portion 4 so that the mounting operation of the bracket 9 on the bracket mounting portion 4 can be facilitated.

Further, in the above-described embodiment, since the sharp tip ends of the pair of mounting claws 11, 11 projectingly formed in the fitting hole 10 of the bracket 9 are bent so as to be located below the fitting hole 10, When the bracket 9 is attached to the bracket attaching portion 4, when the bracket 9 is rotated in the circumferential direction, each of the mounting claws 11 rotates so as to cut a screw, and the bracket 9 is moved upward by an angle corresponding to the rotation angle to move the ribs 8. It is possible to further reduce the rattling of the bracket 9 when the side demister grill 2 is attached to the bracket 9 by this pressing force and further improve the assembling accuracy.

Furthermore, in the above embodiment, the ribs 8 are formed on the bracket mounting portion 4 of the instrument panel 1, and
Since the protrusion 8a is formed on one of the both ribs 8, 8,
The vertical and circumferential positioning of the bracket 9 can be performed easily and reliably.

In addition, although the side demister grill 2 and the duct 3 are assembled to the instrument panel 1 of a vehicle such as an automobile in the above embodiment, the invention is not limited to this, and the invention can be applied to other vehicle interior parts. Needless to say, it is also applicable when assembling parts other than the vehicle.

(Effect of the Invention) As described above, according to the present invention, the mounting claw formed on the inner periphery of the fitting hole of the bracket is made to be difficult to be inserted by the rotating operation of the bracket around the bracket mounting section. With this configuration, the mounting strength of the bracket can be strengthened to eliminate rattling of the bracket when the second component is mounted on the bracket, and the accuracy of assembling the first and second components can be reliably improved. Further, it is possible to facilitate the mounting operation of the bracket to the bracket mounting portion.

[Brief description of drawings]

The drawing shows an embodiment of the present invention, FIG. 1 is a vertical sectional side view showing a state in which a side demister grill and a duct are assembled to an instrument panel, FIG. 2 is a side view of a bracket mounting portion, and FIG. FIG. 4 is a side view of the bracket, FIG. 5 is a bottom view of the same, and FIGS. 6 and 7 are explanatory views showing a procedure for attaching the bracket to the bracket attaching portion. 8 and 9 show a conventional example, and FIG.
The drawing is equivalent to FIG. 5, and FIG. 9 is a vertical cross-sectional side view showing the mounting state of the bracket to the bracket mounting portion. 1 ... Instrument panel (first part) 2 ... Side demister grill (second part) 4 ... Bracket mounting part 5 ... Notch part 9 ... Bracket 10 ... Fitting hole 11 ... Mounting claw

Claims (1)

[Scope of utility model registration request] 1. A bracket made of synthetic resin is attached to a bracket mounting portion made of a synthetic resin formed so as to project from the first component by fitting a fitting hole formed at one end of the bracket to the outside, and the other end of the bracket. In the component mounting structure, the second component is mounted to the first component through the bracket by mounting the second component on the side, and the notch is provided in the bracket mounting direction of the bracket mounting portion of the first component. While the notch is formed on the inner side of the fitting hole of the bracket,
The mounting claws are formed so as to project inward, and the bracket mounting claws are externally fitted to the bracket mounting parts with the notches of the bracket mounting parts of the first component corresponding to the mounting claws of the bracket. , The bracket is rotated around the bracket mounting portion so that the mounting claw is hard to fit into the bracket mounting portion, and the second component is mounted on the other end side of the bracket, so that the second component is inserted through the bracket to the first position. A parts assembly structure characterized by being assembled to parts.