JPS6235418Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] This invention relates to an inner box for a cabinet such as a sink.

[Background technology]

Conventionally, in cabinets such as sinks, an inner box made of synthetic resin integrally molded from the front side has been fitted into the cabinet body, that is, the outer box, in order to prevent objects such as cockroaches from entering the cabinet.

FIG. 1 shows an ordinary inner box for a sink, in which a pair of box bodies 2 are integrally molded with their openings 2a facing the same direction and connected at the opening side edges 2b, and the space between the box bodies 2 is A drain pipe housing space 1 is provided in which a drain pipe connected to a sink passes. An inspection window 3 is formed in the front of this accommodation space 1. A flange 4 that fits into the outer box is provided on the front peripheral edge of the inner box.

The box body 2 has a shelf holder protrusion 5 formed on its inner wall. This protrusion 5 is formed by protruding from the side wall 6 from the outside.

However, the inner box is usually manufactured by integral molding using injection molding or blow molding (or vacuum forming), but injection molding has the problem of high mold equipment costs. On the other hand, in the case of blow blowing, it is not possible to partially thicken the inner box in order to strengthen the inner box, and the wall thickness of both side walls 6 of the drain pipe housing space 1 becomes thinner. Article 5
There was a problem that the shelves were easily deformed by external forces, causing the shelves to fall.

[Purpose of the invention]

This invention relates to an inner box for a cabinet in which the shelf holder is reinforced to prevent the shelf from falling.

[Disclosure of invention]

The inner box for a cabinet of this invention is an inner box for a cabinet made of synthetic resin that is integrally molded with the openings of a pair of box bodies facing in the same direction and connected at the edge of the opening side. The inner wall has a shelf receiving protrusion protruding from the outer wall thereof, and the both side edges are formed in the gap between the boxes (for example, a drainage pipe storage space) on both side walls in grooves corresponding to the protrusion. A reinforcing material is placed horizontally in the fitted state to reinforce the protrusions.

An embodiment of this invention will be described with reference to FIGS. 2A and 2B. Note that the same parts as shown in FIG. 1 are designated by the same reference numerals and the explanation thereof will be omitted. That is, as shown in FIGS. 2A and B, this inner box for the cabinet is formed on both side edges 6 of the drain pipe housing space 1 between the pair of box bodies 2 integrally formed by blow molding. A reinforcing frame 8 whose side edges are fitted into grooves 7 corresponding to the protrusions 5 is horizontally mounted to reinforce the protrusions 5.

The reinforcing frame 8 is configured in a square shape, and both ends thereof are engaged with the grooves 7 of the side walls 6 of the drain pipe accommodation space 1 from the back side of the inner box, and the reinforcing frame 8 is slid into the accommodation space to be installed.

With this structure, even if the wall thickness of the side wall 6 of the drain pipe accommodation space 1 is thin, the shelf support protrusion 5 is reinforced by the reinforcing frame 8 built in the accommodation space 1, so it is not susceptible to external forces. This can prevent the shelf from falling. Therefore, by using blow molding, which is more economically advantageous than injection molding, the shelf support can be reinforced at low cost without increasing the wall thickness. Deformation of the inner box can also be prevented.

Note that various reinforcing materials can be used in place of the reinforcing frame 8, for example, U-shaped or H-shaped reinforcing materials 9 and 10 as shown in FIGS. As shown in FIG. 5, it may be a rod-shaped reinforcing material 11 fitted into the groove 6.

[Effect of idea]

According to this invention, the shelf support part can be reinforced at low cost, and the shelf can be prevented from falling.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the inner box for the cabinet of a normal sink, Figs. 2 A and B are top and rear views of an embodiment of this invention, and Figs.
The figure is a plan view showing another example of the reinforcing material, and FIG. 5 is a perspective view showing still another example of the reinforcing material. 1...Drain pipe accommodation space (gap), 2...Box body,
6...Side wall, 5...Protrusion, 7...Groove, 8...Reinforcement frame (reinforcement material), 9, 10, 11...Reinforcement material.

Claims (1)

[Scope of utility model registration request] An inner box for a cabinet made of synthetic resin that is integrally molded with the openings of a pair of boxes facing the same direction and connected at the edge of the opening, the inner box having a structure that protrudes from the outer wall of the inner wall of the box. It has a shelf support protrusion formed in the gap between the box bodies on both side walls thereof, and with both side edges fitted into grooves corresponding to the protrusion, a reinforcing material is placed horizontally to reinforce the protrusion. An inner box for cabinets that is characterized by: