JPS6025971Y2 - cooking machine - Google Patents

Description

[Detailed description of the invention] The above field of industrial application relates to cooking machines, and in particular to the fixing and fixing of the main case and upper case of a mochi making machine, in which the main case and the upper case are fitted together to form an outer shell. This relates to a fitting method.

PRIOR ART As shown in FIG. 4, a conventional mochi making machine has an outer shell composed of a main body case 2' having a stepped portion 1' formed in the upper part, and an upper case 4' that covers the upper end opening 3' of the main body case 2'. are doing.

The method of fitting the main case 2' and the upper case 4' is as follows.

In other words, the side parts are fixed using means such as screws or rivets to sew the two parts together, but the front part of the product is secured with screw heads and rivet heads so as not to spoil the appearance from a design standpoint. No means of screwing or riveting the sides are used so as not to show the surface.

As a result, a gap is created between the mating end surfaces of the main case 2' and the upper case 4', causing rattling and chattering noises that impair the aesthetic appearance. The upper case 4' may be distorted by the heat generated by the heater, etc., and as a result, the distortion may be concentrated in the unfixed locations, causing large deformation only in those locations.

For this reason, an engaging claw 5' is provided on the upper case 4' to fix the unfixed portion, and by engaging the engaging claw 5' with the opening hole 6' of the main case 2', the upper case 4' and the main case 2' may be fitted and fixed.

However, since the conventional fitting claw 5' utilizes the elasticity of the claw base 7' for fitting, the claw base 7' is made thinner A to provide elasticity, and the mating object ( Here, it is necessary to provide a large fitting allowance H' with the main body case 2').

However, if the base 7' of the claw portion is made thinner, the claw 5' becomes more likely to break, and if the fitting allowance H' is made large, play or a gap S' will be created with respect to the thickness T of the mating object.

Moreover, when the upper case 4' is fitted to the main case 2' by the method shown in FIG. On the other hand, it is necessary that the claw portion B' satisfies B≦C.

However, in this case, although it is true that the claw 5' is easily fitted into the opening hole 6', it is also very easy to pull out, resulting in low reliability and many practical problems.

Purpose of the invention The present invention aims to solve the problems of the prior art as mentioned above.
The purpose of this is to securely fix the main case and the upper case using rigid engagement claws without any gaps.

Embodiment 1 is a main body case, which incorporates mechanical parts such as a motor (not shown).

An upper case 3 that covers the opening 2 on the upper end surface of the main body case 1 is placed.

A portion of the upper end surface opening 2 is stepped to form a fitting surface 4 and fitting walls 5a, 5b, . . . that are orthogonal to each other.

On the front of the main body case 1, a main switch 6 consisting of three operation keys, OFF, MUT, and TURN, and a pilot lamp 7 for indicating energization of a heater (not shown) are arranged.

Similarly, on the side surface of the main body case 1, an intake/exhaust slit 8 for cooling the motor and a handle 9 for moving the main body case 1 are arranged.

The bottom of the main body case 1 is closed by a back cover 10.

In addition, the upper case 3 has a hopper inside the main case 1 (
A material input port 11 is provided which communicates with the material (not shown).

Among the fitting walls 5a, 5b..., screw holes 12b, 13b, etc. are provided in the fitting walls 5b, excluding the front fitting wall 5a.
... has been drilled.

The screw holes 12b, 13b, . . . match with the insertion holes 14b, 15b, .
4b, 15b... through screws 16b, 17b...
Fixed by

At the front of the lower end surface of the upper case 3, engaging claws 18, 18, . . . are formed of a rigid body.

On the other hand, a rectangular opening hole 19.
... are formed by punching, and the engaging claws 18, 18
... are formed to protrude downward toward the opening holes 19, 19....

The engaging claws 1B, 18, .

Furthermore, reinforcing ribs 20 are formed continuously from the inner surface of the upper case 3 on the inner surfaces of the engaging claws 18, 18, and the reinforcing ribs 20 are formed on the inner surfaces of the main case 1 and the upper case. When the case 3 is fitted, it comes into close contact with the fitting wall 5a, and the fitting wall 5
It is energized outward at point a.

The depth dimension C of the opening holes 19, 19... satisfies the relationship B≧C with respect to the wall thickness B of the engaging claws 18, 18..., and once the engaging claws 18, 18... When the... is engaged with the edge of the opening hole 19, 19..., it will rarely come out.

Next, a method of attaching the upper case 3 will be explained.

The tapered tip portions of the engaging claws 18, 18... are inserted into the opening holes 19, 19... and the engaging claws 18, 1B...
is inserted at a slight angle with respect to the fitting wall 5a, and at the same time the fitting margin H is locked to the outer peripheral edge 21 of the opening hole 19, 19, . . . .

Next, the upper case 3 is turned inward using the outer peripheral edge 21 as a fulcrum, and the reinforcing ribs 20 of the engaging claws 18, 18... are pressed into contact with the fitting wall 5a. The upper case 3 and main case 1 are fitted together.

and the screw hole 12b. Insertion hole 14b in 13b...
, 15b, . . . to hold and fix the screws 16b, 17b, . . .

Effects of the Invention As described above, the present invention is a cooking machine consisting of a main body case and an upper case that covers an opening on the upper end surface thereof, in which steps are provided on the entire circumference or a part of the upper end opening so that the openings are perpendicular to each other. A fitting surface and a fitting wall are formed, and an opening hole is formed across the fitting surface and the fitting wall.An engagement member is formed on the lower end surface of the upper case and protrudes toward the opening hole. Since the claw is made of a rigid body, there is no need to worry about deformation or breakage after the main case and upper case are fixed.

■ Since the upper case is locked to the main case by rotating the engaging claw, the mating allowance can be formed to the very thinnest of the mating object, that is, the main case, minimizing looseness and gaps during fixation. can.

■ When using an elastic engaging claw, the depth of the opening hole needs to be large due to the weight, but in this invention, the rigid engaging claw is inserted diagonally to the fitting wall, so the depth of the opening hole needs to be large. Therefore, it is very difficult to remove the engaging claw from the opening hole once it is inserted and locked, and the engagement between the main case and the upper case can be firmly maintained, which has a great practical effect.

[Brief explanation of drawings]

The drawings relate to a mochi making machine according to the present invention and an embodiment, and FIG. 1 is an external perspective view of the machine, FIG. 2 is an exploded perspective view of the main part,
C is a back view of the engaging claw, Figure 3 A. The opening is a vertical sectional view of the main part showing the procedure for inserting the engaging claw, Figure 4-9
Figures 1 and 2 are vertical cross-sectional views of main parts showing a procedure for inserting a conventional engagement claw. 1... Main body case, 2... Upper end surface opening, 3... Upper case, 4... Fitting surface,
5a, 5b... Fitting wall, 19, 19...
・Opening hole, 18.18...Engagement claw.

Claims (1)

[Claims for Utility Model Registration] ■ A cooking machine consisting of a main body case and an upper case that covers an opening on its upper end surface, the upper end surface of which is stepped all or partially so that they are perpendicular to each other. A fitting surface and a fitting wall are formed, an opening hole is formed spanning the fitting surface and the fitting wall, and a fitting protrudes toward the opening hole on the lower end surface of the upper case. A cooking machine characterized by a pair of claws formed of a rigid body. (2) The cooking machine according to claim 1, wherein a reinforcing rib is provided on the inner surface of the engaging claw and is in close contact with the fitting wall and is urged outward by the fitting wall. .