JPH0249724B2 - SONOSHIJISOCHI - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a support device for supporting a tank such as an inner tank of a dishwasher.
This relates to a structure in which the tank is supported by a frame placed below it.

Conventionally, for example, in a dishwasher, there is no example in which a frame is provided to support an inner tub from below. The underframe molded from resin or the like used in washing machines is disposed on the lower flange of the exterior, and screws are often used as the connection means. In addition, as mentioned above, in a dishwasher, there is no connection between the inner tank and the underframe, and the periphery of the inner tank is usually inserted into the upper flange of the exterior and fixed with several screws. There is. Therefore, the inner tank is suspended inside the outer case,
It was also weak in terms of strength, and in order to strengthen it, reinforcing plates were often added to connect it to the exterior.

Most of the underframes used in dishwashers, etc. are made of sheet metal.The frame is made of bent beam-like plates, and supports are erected from each corner, and the inner tank is fixed to the supports. It supports the tank,
Although the sheet metal frame and supports are strong, the parts that are attached to the inner tank are often screwed, etc.
Numerous mounting holes must be made through the inner tank wall, and the inner tank wall itself must have the strength necessary to withstand the impact of drops on the underframe and the load during use. However, it has become expensive not only in terms of assembly man-hours but also in terms of material costs.

The present invention solves the above-mentioned conventional problems, and by supporting the tank not locally but throughout the tank, the support structure of the inner tank is simplified and the number of assembly steps is reduced. Furthermore, it prevents deformation, displacement, etc. of the fixed portion of the inner tank due to vibrations and dropping impacts during product transportation.

Embodiments of the present invention will be described below with reference to the accompanying drawings. In the figure, 1 is the inner tank of the dishwasher.
This corresponds to the tank in the present invention, and the dishes to be washed inside are set and stored in a basket. A cleaning liquid is usually discharged from a spray nozzle into the inner tank 1, and the dishes are washed. Note that the inside of the inner tank is not shown because it is conventionally known. Reference numeral 2 denotes an underframe integrally molded with resin or the like, which is located below the inner tank 1 and forms the base of the lower part of the main body of the dishwasher, and the inner tank support part 3 that protrudes upward is integrally formed at the rear of the frame. The bottom portion 4 and peripheral portion 5 of the inner tank 1 are supported from below.

Reference numeral 6 denotes two columns fixed to the left and right flanges of the front opening of the inner tank 1 from the outside. It is fixed to part 8 with a pin screw.

Reference numeral 9 denotes holding metal fittings attached to two places on the left and right sides of the upper peripheral edge of the inner tank 1. The holding metal fittings 9 are made of sheet metal or the like, and claws 10 are formed on the sides of the holding metal fittings 9.
is engaged with the peripheral edge 11 of the upper surface of the inner tank 1. 12 is an exterior that covers the outer surface of the main body, and upper and lower flange parts 13
and 14, the upper flange portion 13 is engaged with the upper surface of the approximately L-shaped portion 9A at the upper end of the holding fitting 9, and the lower flange portion 14 is attached to the lower surface 15 of the left and right sides of the underframe 2.
Furthermore, a protrusion 1 is provided on the lower surface 15.
6 are provided, and these protrusions 16 are inserted and locked into engagement holes 17 protruding from the lower flange portion 14 of the exterior 12. The front flange 18 of this exterior 12 is
It engages with the vertical rib 19 of the column 6 and is screwed to the column 6.

The inner tank support part 3 of the underframe 2 includes a groove part 20 into which the peripheral edge part 5 of the bottom part 4 of the inner tank 1 is fitted, a rib 21 that supports the bottom part 4 of the inner tank 1 from below, and a peripheral part 5 that is held from the outer periphery. It consists of retaining ribs 22 that hold the inner tank 1
A portion of the rear side portion 5A and side portion 5B of the peripheral edge portion 5 of the inner tank support portion 3 is held by the inner tank support portion 3, respectively.

Reference numeral 23 denotes a piping relief section formed by recessing the rear part of the underframe 2, and is used to connect a drainage hose 24 for discharging cleaning liquid used inside the main body to the outside of the machine, a pressure hose 25 for water supply, etc. to the inside and outside of the machine. An insertion hole 26 for piping to is provided in the surface portion 27 of the underframe 2. Even if these hoses 24 and 25 are bent to the left or right after coming out of the insertion hole 26 and installed with the back of the main body pressed against the wall of the room, they can still be connected through the space of the piping relief section 23 described above. can be connected to the

According to the above configuration, not only the sides of the inner tank 1 are partially supported by the supports, but also the vicinity of the ridgeline, which is a strong and stable part of the box-shaped inner tank 1, is supported, and the inner tank 1 is It is supported by the holding ribs 22 so as to fit in from the side and rear surfaces, and it stably holds the inner tank 1 even if vibration or impact force is applied to the main body from the outside, and prevents deformation of the inner tank 1, dents, and damage to the mounting part. This is to prevent abnormalities such as loosening.

In addition, regarding the connection of the inner tank 1 and the underframe 2, the inner tank peripheral edge 5 is attached to the groove 18, which is the inner tank support part 3 of the underframe 2.
After installation, the ribs 21 that support the bottom part 4 of the inner tank 1 from below
The vertical relationship between the inner tank 1 and the underframe 2 is maintained with high accuracy. For example, even if there are variations in the crimping dimensions of the peripheral edge 5 of the inner tank 1, the lower end of the crimping can be relieved by the groove 20, as shown in FIG. We have taken measures to ensure that there are no variations in the related dimensions after installation. In addition, since the inner circumferential wall of the peripheral edge portion 5 of the inner tank 1 is restricted by the ribs 21 in the left-right direction and the front-rear direction, there is little variation in dimensions.

In addition, since the inner tank 1 is connected to the underframe 2 only by fitting and is not attached with screws, the vibrations transmitted from the inner tank 1, such as those of the pump and motor, are buffered at this part. It is possible to prevent the vibration of the main body and the noise caused by this from being transmitted to the underframe 2 and the exterior.

In addition, when the main body is exposed to high or low temperature atmospheres, if the material of the inner tank 1 is metal and the material of the underframe 2 is resin, dimensional changes due to the difference in thermal expansion coefficients may occur. big. In particular, the inner tank 1 and the underframe 2
If the parts are directly screwed together, distortion of the attachment part and even cracking due to stress distortion will occur. However, by fitting the peripheral portion 5 into the groove portion 20, such distortions and the like are absorbed, resulting in an extremely stable attachment state.

As is clear from the above embodiments, the present invention provides an upwardly open groove on the outer periphery of the resin underframe, and fits the bottom periphery of the tank into this groove. It is possible to absorb deformation, etc., and has the effect of not causing variations in dimensions after fitting.

[Brief explanation of drawings]

Fig. 1 is a vertical cross-sectional side view of a dishwasher according to an embodiment of the present invention, Fig. 2 is an enlarged sectional view showing how the support supporting the inner tub is attached to the underframe, and Fig. 3 is a side view of the dishwasher according to an embodiment of the present invention. 4 is an enlarged sectional view showing the fitted state between the bottom peripheral edge of the inner tank and the groove of the underframe; FIG. 5 is a horizontal sectional view of the main body; and FIG.
The figure is an external perspective view of the underframe. DESCRIPTION OF SYMBOLS 1... Inner tank (tank), 2... Underframe, 4... Bottom part of inner tank, 5... Bottom periphery of inner tank, 3... Inner tank support part of underframe, 20... Groove.

Claims (1)

[Claims] 1. A support device for a tank, in which an upwardly open groove is provided on the outer periphery of a resin frame, and the bottom peripheral edge of the tank is fitted into this groove.