JPH0449008Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to the joining of flocked boxes.
It is particularly used in the manufacture of automobile console boxes and the like.

[Conventional technology]

FIG. 2 is a perspective view of a conventional automobile console box, in which a console upper 1 molded from synthetic resin and a console lower (not shown) are joined, and a change lever 5 is inserted into the front part. The inside of the box is grafted with hair.

That is, FIGS. 3A and 3B are cross-sectional explanatory views of a conventional console box, and as is clear from these drawings, a console top made of synthetic resin 1 is provided with a flocked layer 4 on the inner surface, and A synthetic resin console lower 2 having a flocked layer 4 on the inner surface is prepared, and both are joined to form a console box.

The connection between the two is done by fitting the console top 1 with a width d of approximately 1 mm at appropriate intervals at the joint end of the board with a thickness D of 3 mm, which is limited due to sink marks during molding of the synthetic resin material and design. A fitting groove 11 is formed, and the console lower 2 has a fitting protrusion 22' and a protrusion 2 having a width d ₂ (d ₂ ≦d) corresponding to the fitting groove 11 at the joining end.
A welding protrusion 25 on the upper surface of 2' is formed.

When flocking, in order to prevent the flocking layer 4 from forming on the contact surface between the console upper 1 and the console lower 2, the console lower 2 is supported by a metal frame as a parting line along the A-A line and glued by spraying. Then, the adhesive is sprayed all over the inner surface of the console top 1, and flocking is performed using a well-known electrostatic flocking method.

After that, the fitting protrusion 22' of the console lower 2 is fitted into the fitting groove 11 of the console upper 1, and the welding protrusion 25 on the upper surface of the protrusion 22' is melted by well-known ultrasonic means to join both members 1 and 2. It was fixed.

[Problem that the invention attempts to solve]

In the conventional joint structure of synthetic resin console boxes, in order to prevent the occurrence of sink marks due to the molding of the synthetic resin material, the general thickness of the console top 1 cannot be made thicker than approximately 3 to 4 mm, and the design effect From the above point of view, it is necessary to make the plate thickness of the end joint part of the console topper 1 flush with the intermediate part, and in the end, the joint end part of the console topper 1 has no choice but to have a general plate thickness, and the end part The width d of the fitting grooves 11 formed at appropriate intervals in the console lower part 2 and the width _d2 of the fitting protrusion 22' on the console lower 2 must each be approximately 1 mm.

In a joining structure subject to dimensional restrictions as described above, positioning is difficult when fitting the console upper 1 to the console lower 2, and the fitting operation requires great care and effort.

Also, when spraying adhesive on the console lower 2, the A-A line is fixed to the metal frame as a parting line because the protrusions 22' are scattered, but the adhesive sprayed onto the underside of the metal frame The flocked pile goes around and eventually the flocked pile is also flocked on the contact surface with the console upper 1, and the flocked layer 4 is formed. Therefore,
This flocked pile becomes a factor that prevents the console upper 1 and the console lower 2 from being uniformly and reliably connected.

An object of the present invention is to provide a joining structure that improves these problems.

[Means and actions for solving problems]

In order to solve the above-mentioned problems, for example, 1B
As shown in the figure, a notch 12 having a substantially L-shaped cross section is provided on the lower end surface of the side plate of the upper box material 1, leaving a protrusion 13 on the outside. Further, a rib 22 is erected at the end of the bottom plate of the lower box material 2, and a support part 23 having a substantially L-shaped cross section corresponding to the shape of the notch part 12 is provided on the outside of the rib. It is configured to engage and support, and a welding protrusion 25 is disposed on the upper surface of the support portion 23.

Then, on the inner surface 1' of the upper box material 1, flocking is applied only to the upper part of the area H which contacts the vertical back surface 22' of the rib 22, thereby forming the flocking layer 4. Also,
The inner surface 2' of the lower box material 2 is also subjected to flocking only inward from the top of the rib 22 to form a flocked layer 4. Then, the upper box material 1 and the lower box material 2 are integrated by abutting the cutout portion 12 and the support portion 23 and melting the welding protrusion 25.

In order to fit the upper and lower box members 1 and 2 together, both the cutout part 12 and the support part 23 have a substantially L-shaped cross section, and the rib 22
Since this functions as a reference for positioning, fitting and positioning can be easily performed. The ribs 22 also facilitate masking to prevent the flocking adhesive from spreading.

[Example] As shown in FIG. 2, the present invention was applied to a console box consisting of a console upper 1 and a console lower 2.

As shown in Figures 1A and 1B, the console top 1 as the upper box material has a thickness of 3 mm at the lower part of the side plate, with both the inner surface 1' and the outer surface 1'' extending flush from above, and the lower end surface is 3 mm thick. It was molded from ABS resin so that a notch 12 with a cutting depth of 2 mm and a cutting height of 2 mm had a flange 13 with a width of 1 mm and a height of 2 mm on the outer surface side.

The console lower 2 as a lower box material has legs 21 on the lower surface like conventional products, but has ribs 22 standing up on both ends, and a vertical back surface with a height H of 3 mm outside the ribs. A cross section approximately L having a bearing surface 24 with a welding protrusion 25 formed in the center over the entire length.
A shaped support portion 23 and a second support surface 26 are provided in succession,
General plate thickness 3 in shape with sink prevention recess C on the bottom surface
Molded from ABS resin in mm.

Next, the console lower 2 was fixed to a metal frame as a parting line on the top surface of the rib, and then a well-known solvent-based adhesive was sprayed and flocked piles were electrostatically flocked to form a flocked layer 4. In order to prevent the flocked pile from adhering to the area where the back surface of the rib 22 contacts, the console atsuppa 1 is fixed to the metal frame as a parting line at the B-B line on the inner surface 1', and after spraying adhesive, A flocked pile was electrostatically flocked to form a flocked layer 4.

Next, since the side plates of the console upper 1 are slightly inclined inward due to the habit of molding, the lower ends are slightly pushed out and the notches 12, which have an approximately L-shaped cross section, are cut out into the console lower 2. L-shaped support part 23
The welding protrusion 25 is melted by a conventional ultrasonic heating means, and both members 1 2 was joined and fixed.

In the obtained console box, since the adhesive of both the console upper 1 and the console lower 2 was accurately masked on the parting line by the metal frame, the contact surface of both members, that is, the vertical back surface 22' of the rib 22, and the area H of the inner surface 1' of the upper box material, the support part 23
There were no flocked piles on the top and side surfaces and the notch 12, and a uniform and reliable connection was possible.

The rear surface of the rib can be used for positioning, and the notch 12 is engaged with the support part 23, which has a roughly L-shaped cross section, so the joining work is not the same as fitting a small fitting groove and a small fitting protrusion as in conventional products. It became incomparably easier.

Since the second bearing surface 26 is located at the outermost edge of the console lower 2, the resin flow from the welding protrusion melted by ultrasonic welding does not flow outward and be exposed.

Since the rib 22 has a structure in which it abuts and supports the console top side plate from the inside, it serves as a reinforcing material for the console box.

It should be noted that the welding protrusions 25 on the bearing surface 24, which is the upper surface of the bearing part 23, had the same effect even when they were arranged in a dotted manner.

The above embodiment relates to a console box for an automobile, but the present invention is a box body of the type in which a bottom plate and a side plate frame are glued together, and the inner surface is pre-flocked before being joined to the box body. It can be applied to objects with a flocked layer, and can be widely applied to small plastic boxes such as plastic toys, boxes, and music box boxes.

[Effect of idea]

Due to the presence of ribs on the inner periphery of the lower box material,
Positioning of both the upper and lower box members during engagement and welding can be easily performed.

Furthermore, since the ribs also serve as reinforcement for the finished product, the rigidity of the box increases.

In addition, the ribs perform a masking function when distributing adhesive, prevent the flocked pile from adhering to the contact surface between the upper and lower box members, and ensure uniform and reliable bonding between the two members.

[Brief explanation of the drawing]

FIG. 1A shows an embodiment of the present invention, and FIG.
It is an X-ray sectional view, and FIG. 1B is an enlarged view of part B of FIG. 1A. FIG. 2 is an overall perspective view of the console box. FIG. 3A is a diagram corresponding to FIG. 1A of the conventional example, and FIG. 3B is an enlarged view of part B of FIG. 3A. 1... Console top, 2... Console lower, 3... Console door, 4... Flocking layer, 5...
... Change lever, 12 ... Notch, 13 ... Projection, 21 ... Leg piece, 22 ... Rib, 23 ... Supporting section, 24 ... Bearing surface, 25 ... Welding protrusion, 26 ...
...Second bearing surface.

Claims (1)

[Scope of utility model registration request] A notch 12 is formed on the lower end surface of the side plate of the upper box material 1 with a protruding edge 13 left on the outside, and a rib 22 is erected at the end of the bottom plate of the lower box material 2, and the rib is in contact with the notch 12 on the outside. A supporting part 23 for engagement is provided in a row, and the notch part 12 of the upper box material and the supporting part 23 of the lower plate material are bonded and integrated by melting the welding protrusion 25 provided on the upper surface of the supporting part 23. A box-shaped joint structure having a flocked layer 4 on its inner surface.