JPS5934023Y2 - switch mounting device - Google Patents

Description

[Detailed description of the invention] This invention relates to a switch mounting device on a panel stand of a washing machine, etc., and is designed to be easily mounted without using mounting parts, and at the same time to maintain the mounted state sufficiently. .

Conventionally, this type of switch mounting device has been constructed by forming at least one pair of elastic locking pieces facing each other at appropriate intervals on a switch mounting base and having claws at the tips, and by pushing the switch between the elastic locking pieces. Deflect the elastic locking piece outward,
The switch was attached by using this deflection to engage the claw with the switch, but the engaging surface of the claw on the elastic locking piece, that is, the surface that engages with the switch, is formed flat, and the elastic locking Since there is no catch between the switch and the switch in the direction of deflection of the piece, if an external force applied to the switch acts on the elastic locking piece as a force in the direction of deflection, slippage will occur between the engaging surface of the claw and the switch. There was a risk that the elastic locking piece would easily bend and the claw would come off the switch, causing the switch to fall off.

The present invention has been developed in view of these points, and the present invention will be described in detail below with reference to a switch mounting device for a washing machine panel stand shown in the drawings.

1 is the main body of the washing machine with a washing tub and a dehydration tank installed side by side, and 2 is a panel stand (switch mounting base) installed at the rear of the top of the main body 1.
, 3 is an operation panel attached to the operation surface of the panel stand 2;
2 shows a select switch for changing the water flow, which is attached to the panel stand 2 and has an operation button 5 exposed to the front of the operation panel 3.

The panel stand 2 is made of synthetic resin, and has a rectangular opening 6 on its operating surface, and a pair of joints 7, 8 and a plurality of pairs of elastic locking pieces 9 on its back side. ... are integrally molded.

The above-mentioned joint portions 7°8 are located at the upper and lower edges of the opening 6 and are formed at the same height, one of the joint portions 7 has a U-shaped positioning protrusion 10 on the end surface, and the other joint portion 8 has a It has positioning protrusions 11, 11.

The elastic locking pieces 9, 9, . . . are located on both sides of the opening 6 and face each other, and each has a claw 12, 12, 12, 12, . has.

Further, the engagement surface 12' of the pawl 12 has protrusions 13, 13, . . . formed on the free edge.

The select switch 4 is integrally provided with a mounting plate 14.

This mounting plate 14 has tongue pieces 15 that abut against the joints 7 and 8.
16, and one tongue piece 15 is connected to a U-shaped positioning protrusion 10.
The other tongue piece 16 has a through hole 17.17 into which the positioning projection 11.11 fits.

Also, the mounting plate 14 has both side edges bent to form engagement pieces 18.18, and the engagement pieces 18.18 are elastically engaged when the mounting plate 14 is in contact with the joints 7 and 8. It is made to engage with the claw 12 of the stopper piece 9.

The engagement piece 18.18 engages with the engagement surface 12'12' inside the protrusion 13.13, and is prevented from accidentally coming off by the protrusion 13.13.

Incidentally, reference numeral 19 denotes a through hole bored in the operation panel 3, through which the push button 5 of the select switch 4 is exposed to the outside.

Attachment of the select switch 4 to the tank bottom is carried out by pushing the switch 4 between the elastic locking pieces 9 from the state shown in the second figure.

That is, when the switch 4 is pushed in, the elastic locking pieces 9, 9 are pushed outward as the mounting plate 14 comes into contact with the outer wall of the claw 12.12, and the mounting plate 14 is moved from the outer wall of the claw 12.12. Once released, the claw 12.12 is elastically restored and engaged with the engagement piece 18.18.

In this state, the tongue pieces 15 and 16 are connected to the joints 7 and 8.
The positioning protrusion 10 and the tongue piece 15 are in contact with each other.
are engaged, and the positioning protrusion 11.11 and the through hole 17.17 are in a fitted state.

The switch 4 mounted in this manner is prevented from lifting up by the claws 1212, and the elastic locking pieces 9, 9
, the protrusions 10 and the protrusions 11, 11 prevent rattling in the left, right, up and down directions, so that the attached state is reliable.

Further, when the external force applied to the switch 4 acts on the switch in the direction of bending the elastic locking pieces 9, the protrusion 13°13 prevents the claw 12 and the engaging piece 18 from coming off. Therefore, the switch 4 can sufficiently maintain its installed state.

As described above, the switch mounting device of the present invention can be easily mounted without using mounting parts such as screws, and when an external force applied to the switch acts on the elastic locking piece as a force in the bending direction, the force is applied to the protrusion. This is an extremely excellent idea that can sufficiently maintain the attached state by using the engagement piece and eliminates the previous drawbacks.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing a washing machine implementing the proposed device;
3 and 3 are exploded configuration diagrams and cross-sectional views showing the proposed device,
FIG. 4 is an enlarged view of section A in FIG. 3. 2: Panel stand (switch mounting base), 4: Select switch, 9: Elastic locking piece, 13: Projection, 18: Engagement piece.

Claims (1)

[Scope of utility model registration request] At least one pair of elastic locking pieces facing each other at an appropriate interval and having claws at the tips are formed on the switch mounting base, and the switch is pushed between the two elastic locking pieces and is pressed by utilizing the deflection of the elastic locking pieces. The switch is mounted by engaging the engaging surface of the claw with the switch, and the switch is provided with an engaging piece that protrudes toward the engaging surface of the claw and engages with the engaging surface, and the other is elastically engaged. A switch mounting device characterized in that one of the claws is formed with a protrusion that is located on the tip side of the claw and projects above the engagement surface.