JPS631992Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a control box for a washing machine that houses a timer and the like.

Generally, this type of control box consists of a case with the upper part cut out diagonally upwards, and a plate that closes the opening of this case. A timer or the like was installed, and then the lower end of the plate was engaged with the case, and the upper end of the plate was screwed to the case. Therefore, loosening of the screws causes looseness, and over-tightening of the screws causes damage, and the work of tightening the screws is troublesome. Therefore, as shown in Japanese Utility Model Publication No. 52-24391, for example, a downwardly bent piece with an engaging claw is formed at the upper end of the plate via a self-hinge part, and a locking part is formed at the rear of the upper part of the case. It has been considered that the case and plate are fixed by bending the folded piece while covering the rear of the case, and engaging the engaging claw with the locking part. However, in this conventional example, the engaging claws and locking parts are exposed on the outside of the box, even though they are located at the rear, and the plate can come off from the case for some reason without using a tool such as a screwdriver, and the electricity inside the case can be easily removed. There was a risk of electrical leakage if the parts were accidentally touched or if the water heated up. Also, regulations regarding electrical appliances did not allow the case to be opened without a tool such as a screwdriver.

This invention was created in view of the above points,
A folding piece is formed at the upper end of the case through a self-hinge part, and a pair of mounting pieces facing each other from above and below is formed at the upper end of the plate with a booth spaced therein, and a pair of mounting pieces protrudes backward from the top end of the plate. This is a control box for a washing machine that is inserted into the booth and engages with the above-mentioned mounting piece in the booth. Therefore, since the bent piece is held between the mounting pieces and is engaged with the concave and convex parts inside the booth, the plate will not come off due to external factors if it is left as it is, and when it is time to remove it, use a screwdriver etc. inside the booth. The booth must be forced open by inserting it inside the booth. Therefore, the drawback of the conventional example due to the plate coming off can be overcome. In addition, since the mounting piece is provided on the plate side and protrudes rearward, the protruding end of the mounting piece is prevented from facing rearward and deteriorating the appearance. On the other hand, if the booth faces forward, water will be introduced into the case, but in this invention, the tip of the mounting piece faces backwards, so this type of water is prevented from entering. can.

Furthermore, in the present invention, since the mounting piece is provided to protrude up to the self-hinge portion, this portion, which has reduced strength, can be protected from external forces.

The following embodiment will be explained based on the drawings. Reference numeral 1 denotes a control box installed at the rear upper part of the body 2 of the washing machine, which houses electric components (not shown) such as a timer, and is fixed to the body 2. It consists of a case 3, which is fixed to the case 3, and a plate 4, which is fixed to the case 3, has operating knobs (not shown) for electrical parts installed thereon, and has appropriate markings on it.

Here, the case 3 is formed with its upper part cut diagonally upward (rearward), and a bending piece 6 that can be bent forward is formed at the upper end of the rear wall via a thin self-hinge part 5. This bent piece 6 has an engagement hole 7...
is installed. Incidentally, the bent piece 6 may be divided into a plurality of pieces for each engagement hole 7, as shown in FIG.

On the other hand, the plate 4 has an incised case 3.
A recess 8 is formed at the lower front end to fit into the upper front end of the case 3, and a pair of upper and lower mounting pieces 9, 10 are provided at the upper end so as to protrude downward from the rear. is forming. A booth 11 into which the bent piece 6 is inserted is formed between the upper and lower mounting pieces 9 and 10 facing each other, and the upper mounting piece 9 projects into the booth 11 and has an engagement hole. An engaging protrusion 12 that fits into the folding piece 7 is provided, and also extends to the self-hinge portion 5 of the folding piece 6.

That is, when the folded piece 6 of the case 3 is inserted into the booth 11 after fitting the recess 8 of the plate 4 into the front part of the case 3, the booth 11 is pushed open and the folded piece 6 is further engaged. It is pushed open when going over the mating protrusion 12. When the engaging protrusions 12 are fitted into the engaging holes 7, they are prevented from coming off, and the upper and lower mounting pieces 9, 10
are superimposed so as to sandwich the bent piece 6 from above and below.
Further, the upper mounting piece 9 protrudes above the self-hinge section 5 to protect it from external forces.

When opening the control box 1 to repair or inspect electrical components such as a timer, insert a screwdriver or the like between the upper mounting piece 9 and the bent piece 6, and then open the upper mounting piece 9.
is pushed upward and the engaging protrusions 12 are pulled out from the engaging holes 7.

As described above, in the control box according to the present invention, the engagement point between the case and the plate is located between the pair of mounting pieces of the plate. It does not exhibit various defects due to detachment. That is, it is possible to omit the screw fixing work, improve the structure and workability, and prevent the plate from coming off due to external force. In addition, since the booth is oriented toward the rear, the appearance will not be degraded, and at the same time, it will be possible to prevent water from entering.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of a washing machine control box according to the present invention, Fig. 2 is a side sectional view of the case, Fig. 3 is a perspective view of the case, and Fig. 4 is a perspective view of the case of another embodiment. be. DESCRIPTION OF SYMBOLS 1... Control box, 3... Case, 4... Plate, 5... Self-hinge part, 6... Bending piece, 7...
...Engagement hole, 9, 10...Upper and lower mounting pieces, 11...
Booth = 12... Engaging protrusion.

Claims (1)

[Claims for Utility Model Registration] (1) A control box for housing a timer, etc. is constructed from a case and a plate that are fixed to each other, and a folding piece is attached to the upper end of the case via a self-hinging part. At the same time, a booth is placed at the upper end of the plate, and a pair of mounting pieces facing each other from above and below is formed to protrude rearwardly, and furthermore, one of the bent piece and the mounting piece is provided with an engagement hole, and the other is provided with an engaging hole. A control box for a washing machine, characterized in that an engaging protrusion is provided that fits into the engaging hole when the bent piece is inserted into the booth. (2) The control box for a washing machine according to claim 1, wherein the mounting piece protrudes up to the self-hinge portion of the folding piece.