JPH0232234Y2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Industrial Application Field The present invention relates to a device for supporting a push-pull type keyboard operation button in a washing machine.

(B) Prior Art As a conventional example of keyboards, Japanese Utility Model Publication No. 57-9819 is cited, which discloses a rib having a square hole 52 at the tip of a black key 51 on the surface in the width direction of the key, as shown in Fig. 14. 53, and the white key 54 is provided with a rib 53 having a square hole 52 on the lower surface thereof so as to be on the same plane as the rib 53 at the tip of the black key 51, and a rib 53 having a square hole 52 at the front end of the frame 55 is provided. A projection 5 into which a guide bush 56 is inserted at a corresponding position.
7, and the guide bush 56 is connected to the black key 5.
This is a key guide device for a keyboard, which is inserted into a rectangular hole 52 of a rib 53 provided at the tip end and the lower surface of a white key 54 to regulate at least the left and right and resting position (upper limit) of the key.

However, although this conventional example is a device used for the keyboard of an electronic musical instrument and is dimensionally accurate, when it is used in a recess provided in the operating panel of a washing machine in the present invention, the recess This makes it difficult for the mutual dimensional relationship between the operating lever and the keyboard device to be accurate, resulting in low dimensional accuracy. For example, when switching the direction of water injection, water may be poured from both sides, or when opening and closing a valve, water may leak or the water flow performance may be reduced.

(c) Purpose of the invention The purpose of the invention is to improve the dimensional accuracy around the operation buttons of a washing machine and further improve the design effect of the operation panel.

(d) Structure of the invention The present invention consists of an operating lever that is installed in the operating section of a washing machine to switch the water injection direction or open/close the valve, and a base end on the inner wall of a recess provided in the operating panel of the operating section. and a push-up type keyboard operation button that is rotatably supported and operated by pressing the free end side, and the operation button has a pressing rib that comes into contact with and presses the operation lever, and the recess. An opposing wall facing the inner wall is provided, and a rib is provided on the opposing wall, and the rib and the inner wall of the recess are appropriately brought into contact with each other before and after the operation button is pressed, and further, before the operation button is pressed, the operation panel and the rib are brought into contact with each other. This is a support device for a keyboard-type operation button in a washing machine, characterized in that the operation button is substantially flush with the top plate.

That is, since the operation panel and the operation buttons are flush, the appearance of the operation section is excellent, and the ribs provided on the opposite wall of the operation button come into contact with the inner wall of the concave part of the operation panel before and after pressing the operation button. The operating lever can be pressed by an appropriate amount.
Therefore, switching the water injection direction or opening/closing the valve can be performed accurately without any trouble.

(E) Embodiment An embodiment of the present invention will be described based on FIGS. 1 to 13.

Reference numeral 1 denotes a washing machine employing the present invention, which has an operating section 2 in its upper part, and an opening 3 provided in the front of an operating panel 2a of the operating section 2. In addition, the operation panel 2a
constitutes a substrate, and the opening 3 constitutes a recess. Second
4 in the figure is a resin plate frame fitted into the opening 3, and semi-cylindrical support parts 6 and 7 are integrally provided on the lower side surface. 8a and 8b are push-button operation buttons of the same shape,
As shown in FIGS. 4 to 7, semicircular engagement grooves 9, 9 are provided at the base end, and by engaging the engagement grooves 9, 9 with the support parts 6, 7, the operation button 8a,
8b is rotatably supported on the plate frame 4.

The shapes of the operation buttons 8a and 8b will be explained.
The side walls 10, 11 become wider from the base end toward the free end, and the side wall 11 has a side wall rib 11a as shown in FIG. Further, as shown in FIG. 9, a rear wall 13 facing the inner surface of the plate frame 4 is provided on the free end side. Ribs 15, 16, 17 are provided on the outer periphery of the rear wall 13 using the top plate 14 and the side walls 10, 11, and the ribs 1
6 and 17 are operation buttons 8a and 8 from the top plate 14 side.
The width gradually increases in the direction of rotation b. Further, a protruding rib 18 is provided near the rib 16 and extends downward.

As shown in FIG. 8, the side wall rib 11a of the operation button 8a serves to press a hinge spring 12a that operates the switching of the water inlet body 12.
Further, the protruding rib 18 of the operation button 8b is the tenth
As shown in the drawings and FIG. 11, it is used to press an operating lever 19 that opens and closes a drain valve (not shown). The water inlet body 12 and the hinge spring 12a are connected by a water inlet body operating pin 12b, and the drain valve and the operating lever 19 are connected by a connecting line 20, respectively.

Next, the push-push type mechanism of the operation buttons 8a and 8b will be explained. First, operation button 8
In order to provide restoring force to a and 8b, a dogleg-shaped leaf spring 21 is disposed between the lower surface of the operation buttons 8a and 8b and the inner surface of the plate frame 4, as shown in FIG. Furthermore, stoppers 22, 23, and 24 are provided to prevent the leaf spring 21 from slipping off.

In FIG. 9, a triangular cam 25 and a heart-shaped cam 26 are protruded from the center of the rear wall 13 of the operating buttons 8a, 8b on the top plate side. Further, a box body 29 containing an L-shaped piece 28 attached via a spring 27 is screwed to the upper side surface of the plate frame 4. The box body 29 is connected to the cam 2 as shown in FIG.
Both the surface facing the rear wall 13 and the surface facing the rib 15 of the top plate 14 are open so that the top plate 14 and the top plate 14 can be inserted. Here, the operation button 8a,
When 8b is pressed, that is, when the operating buttons 8a and 8b move in the direction of arrow A, the piece 28 slides along the slope arrow B of the heart-shaped cam 26. When pushed in to a certain extent, the rib 15 of the top plate 14 on the rear wall 13 and the side wall end surfaces 30, 3 of the box body 29
1 is in contact with it, and the mechanism is such that it cannot be pushed in any further. At this time, the piece 28 is guided in the direction of arrow C by the repulsive force of the spring 27 and the shape of each cam 25, 26 and is locked at point D, and temporarily presses the operating buttons 8a, 8b against the restoring force of the leaf spring 21. make it stop. Then, when the operation buttons 8a and 8b are pressed again, the piece 28
moves upward from point D and is removed from the heart-shaped cam 26 by the repulsive force of the spring 27. Therefore, the operation buttons 8a and 8b return to their original positions due to the restoring force of the leaf spring 21, and the piece 28 moves forward as indicated by the arrow E. At this time, the rear wall of the operation buttons 8a, 8b should be adjusted so that the operation buttons 8a, 8b do not return too far and protrude from the surface of the operation panel 2a, but are flush with the surface of the operation panel 2a, as shown in FIG. 13 ribs 16,1
The wide portions 16a and 17a of the plate frame 4 come into contact with an abutting portion 4a provided below the upper side surface of the plate frame 4. Incidentally, since the portion of the cam 26 indicated by the arrow E is a rib 32 having a gentle upward slope in the direction of the arrow, the piece 28 is correctly guided in the direction of the arrow B.

In this embodiment, as shown in FIG. 9, ribs 3 are provided on the rear wall 13 of the operation buttons 8a and 8b in the direction of rotation.
4 and a rear wall 13 are provided. Furthermore, the box body 29 is provided with a guide rib 35 that is fitted into the guide groove 33 and slides thereon, extending from a side wall 36 . Therefore, the operation buttons 8a, 8b
By supporting the guide groove 33 and the guide rib 35, lateral wobbling is suppressed and accurate push operation can be performed.
In particular, in the case of using a cam mechanism as in this embodiment, precision is required in the dimensional relationship between the cams 25 and 26 and the box plate 29 and the piece 28.
Since the guide rib 35 is provided, the cam mechanism operates accurately without rattling from side to side.

From the above, in this embodiment, the operation button 8
Before pressing a, 8b, operation buttons 8a, 8b
The wide portions 16a, 17a of the plate frame 4 are in contact with the contact portions 4a provided on the upper side surface of the plate frame 4, and since the top plate 14 of the operation buttons 8a, 8b and the surface of the operation panel 2a are flush with each other, each Operation buttons 8a, 8b
Since they have the same shape, the design effect on the operation panel 2a is improved. After pressing operation button 8
The ribs 15 of the top plate 14 of a and 8b are the plate frame 14
side wall end surface 30 of the box body 29 attached to the upper side surface of the
31 and cannot be pushed any further, it is possible to press the hinge spring 12a or the operating lever 19 by an appropriate amount, and pressing too much may damage the water injection switching or drain valve opening/closing devices. Such situations can be prevented.

(f) Effects of the invention In this invention, the surface of the operation panel and the top plate of the operation button are made flush with each other, so the design effect on the operation panel is improved.
Since the rib provided on the wall facing the operation button comes into contact with the inner wall of the concave portion of the operation panel, the operation lever can be pressed by an appropriate amount. In other words, water injection switching or valve opening/closing operations can be performed accurately without any trouble.

[Brief explanation of the drawing]

Figure 1 is a front view of a washing machine implementing the present invention, Figure 2 is a plan view of the plate frame, Figure 3 is a sectional view taken along line P-P' in Figure 2, and Figure 4 is a simplified diagram of the operation buttons. A perspective view, FIG. 5 is a plan view of the operation button, FIG. 6 is a side view of the operation button, FIG. 7 is a bottom view of the operation button, FIG. 8 is a simplified diagram of the main parts of the water inlet switching section, and FIG. 9 is a A simplified diagram of the rear wall of the operation button, Fig. 10 is a simplified diagram of the main part of the drain valve operating part, Fig. 11 is a sectional view of the main part of the operating part of the washing machine, and Fig. 12 is a sectional view of the main part of the operation button. FIG. 13 is a sectional view of a main part like FIG. 11, and FIG. 14 is a side sectional view showing a conventional example. 1...Washing machine, 2...Operation unit, 2a...Operation panel, 12a...Hinge spring (operation lever),
19... Operating lever, 3... Opening (recess), 8
a, 8b...operation button, 13...rear wall (opposing wall), 11a...side wall rib, 18...protruding rib,
15, 16, 17...rib, 14...top plate.

Claims (1)

[Scope of utility model registration request] The operating lever is installed in the operating section of the washing machine and operates to switch the water injection direction or open/close the valve, and the base end is rotatably supported on the inner wall of a recess provided in the operating panel of the operating section. It consists of a push-up push type keyboard operation button that is operated by pressing the end side, and the operation button is provided with a pressing rib that comes into contact with and presses the operation lever, and an opposing wall that faces the inner wall of the recess, Further, a rib is provided on the opposing wall, and the rib and the inner wall of the recess are appropriately brought into contact with each other before and after pressing the operation button, and furthermore, before pressing, the operation panel and the top plate of the operation button are substantially flush A support device for a keyboard-type operation button in a washing machine, characterized by having one button.