JPH0325199B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a front panel type washing machine that is equipped with a lid switch that stops operation when abnormal vibrations are detected or when the lid is opened so as not to damage the appearance. be.

In general, a front panel type washing machine, such as a fully automatic washing machine, has a configuration as shown in the figure.
Reference numerals denote a rectangular outer frame, and corner plates 2 are provided at the four corners of the upper surface of the outer frame 1, and an outer tank 4 and a driving device 5 are suspended through rods 3. 6 is a cylindrical inner tank with a bottom placed inside the outer tank 4, and a pulsator 7 is installed in the center of the bottom.
has. Reference numeral 8 denotes a front panel provided at the upper front of the outer frame 1, on which a switch, an indicator lamp, a buzzer, etc. are attached. 9 is a top cover made of metal such as an iron plate or resin that covers the top surface of the outer box; 10 is a step provided in the center of the top cover 9; approximately in the center is provided with a laundry input/take-out port 11 leading to the inner tub 6; There is. Reference numeral 12 denotes a lid provided on the stepped portion 10 so as to be openable and closable. Reference numeral 13 denotes a safety switch which has the function of detecting abnormal vibration of the outer tank 4 and stopping the operation, and also the function of stopping the operation when the lid 12 is opened beyond a safe angle. Reference numeral 14 denotes a water supply valve device provided on the rear surface of the outer frame 1, which is connected via a hose 15 to a water supply port 16 provided facing above the inner tank 6. 17 is a drainage pump provided at the bottom of the outer frame 1.

In the front panel type fully automatic washing machine configured as described above, the safety switch 13 is installed at the circular outer periphery of the outer tub 4 because it is necessary to detect abnormal vibrations of the outer tub 4 and detect the degree of opening of the lid 12. It is limited to the space created at the rear corner of the rectangular outer frame 1. Therefore,
The safety switch 13 must be placed near the corner plate 2.

However, the force applied to the outer frame 1 and the corner plate 2 changes due to shocks during water supply and drainage to the outer tank 4, washing operation, etc., causing elastic deformation, so the safety angle and abnormal vibration detected by the safety switch 13 are It changes depending on the force applied to the outer frame 1 and the corner plate 2. Therefore, there was a problem in carrying out a safe washing operation.

The present invention was made in order to solve the above problem, and a tongue piece is provided on a part of the step formed on the top cover, one end of the board on which the safety switch is attached is engaged with this tongue piece, and the other end is engaged with the tongue piece. By making the bent surface formed between the edges contact the inner surface of the top cover and screwing the other end to the rear surface of the top cover, the outer frame and corner plates are not affected by elastic deformation, and the appearance is improved. The purpose is to install a safety switch without damaging it.

Hereinafter, one embodiment of the present invention will be described based on the drawings. As shown in FIGS. 5 and 6, 20 is a board to which the safety switch 13 is attached with screws 21, with a mounting surface 20A at one end and a bent flange 2 at the other end.
It has a bent surface 20C at 0B and an intermediate portion. The mounting surface 20A is fixed to the rear surface of the top cover 9 with screws 22, and the bending flange 20B is engaged with a tongue piece 23 formed by cutting and raising a part of the rear surface of the stepped portion 10. Further, the bent surface 20C is in elastic contact with the inner surface of the top cover 9. As a result, the bending flange 20B presses the tongue piece 23.

Therefore, in order to attach the safety switch 13 to the top cover 9, first, the bent flange 20B is locked to the tongue piece 23, and then the mounting surface 20A is screwed into the mounting hole provided at the back of the top cover 9. All it takes is a very simple task. Furthermore, since the safety switch 13 is attached to the top cover 9, it is not affected by the elastic deformation of the outer frame 1 and the corner plate 2, and can accurately detect abnormal vibrations of the outer tank 4 and the degree of opening of the lid 14. Also, in terms of appearance, there are no mounting screws on the top surface of the top cover 9, and there are no traces of spot welding, etc., making it very beautiful. Furthermore, the bent surface 20C
is a bent flange 20B on the inner surface of the top cover 9.
By elastically abutting each other on the tongues 23, it is also possible to prevent resonance and abnormal noise from occurring due to resonance during washing operations.

In addition, the present invention is not limited to the embodiments described above and shown in the drawings, and it goes without saying that the present invention can be implemented with appropriate modifications within the scope of the invention.

As explained above, according to the present invention, a tongue piece is provided in a part of the stepped part, one end of the board on which the safety switch is attached is engaged with the tongue piece, and the bent surface formed between the tongue piece and the other end is used as the top cover. By elastically abutting the inner surface and fixing the other end to the back surface of the top cover with screws, for example, installation is easy, the appearance is not damaged, and it is not affected by external influences. The practical effects are extremely large, such as the accurate operation of the safety switch.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a front panel type fully automatic washing machine according to an embodiment of the present invention, Fig. 2 is a plan view of the front panel type fully automatic washing machine with the top cover removed, and Fig. 3 is a plan view of the top cover. , Figure 4 is a rear perspective view of the front panel type fully automatic washing machine.
FIG. 5 is a longitudinal sectional view showing the safety switch installed, and FIG. 6 is a plan view with the top cover removed. 1...Outer frame, 9...Top cover, 10...Step, 12...Lid, 13...Safety switch, 20...
... Substrate, 20C... Bent surface, 23... Tongue piece.

Claims (1)

[Claims] 1. A top cover placed on the outer frame has a stepped portion for accommodating a lid attached to the top cover so as to be openable and closable, a tongue piece is provided on a part of the stepped portion, and one end of the board to which the safety switch is attached is attached to the tongue piece. The front panel type washing machine has a bent surface formed between the top cover and the other end that contacts the inner surface of the top cover, and the other end is fixed to the rear surface of the top cover.