JPH0551275U - Water supply switching device for washing machine - Google Patents

Abstract

(57) [Summary] [Purpose] The knob for operation for switching the water supply between the washing tub and the dehydration tub is locked at the switching position to improve reliability and to make it easy to understand that the switching position is located. Improve operability. [Structure] A slide lever 19 associated with a water supply switching pipe 16 is placed on a panel base 6, and the slide lever 1
In a water supply switching device for a washing machine in which a knob 9 for switching water supply is attached to 9, a leaf spring 20 serving as a stopper is provided on the panel base 6 in a protruding manner, and a lower surface of a slide lever 19 is provided on a washing tub side and a dewatering tub side. A recess 19c that engages with the leaf spring 20 at the water supply switching position is formed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a water supply switching device for switching water supply between a washing tub and a dewatering tub in a two-tub type washing machine.

[0002]

[Prior Art]

 As a water supply switching device for such a two-tub type washing machine, there is a device shown in, for example, FIG. 5 in the related art. In FIG. , This panel base has an overall basic shape with a substantially L-shaped cross section with the rear end raised, the center of the horizontal part bulges upward into a box shape, the lower surface opens, and the front lower step A water supply support base 32a having 32e is integrally formed, and a connection cylinder 32b for connecting the water supply hose 30 is further integrally formed on the upper surface of the water supply support base 32a.

A water supply switching pipe 16 having a bellows-shaped flexible portion 16b formed in the middle thereof is connected to a lower portion of the connection pipe 32b, and a discharge port 16a at a lower portion of the water supply switching pipe 16 is connected to a water supply support 32a. It opens inside at the bottom.

An elastic claw is formed on the lower part of the front surface of the water supply support base 32a so as to be positioned directly above the step 32e and has a laterally long hole 32c formed therein. Two pieces 32d are juxtaposed at appropriate intervals. In the figure, reference numeral 32f denotes a ring-shaped rib projectingly provided on the upper surface of the water supply support 32a so as to surround the connection tube 32b projecting upward from the water supply support 32a.

In the figure, reference numeral 36 is a slide plate having a U-shaped cross section for switching the water supply between the washing tub and the dewatering tub side, and a ring 36a into which the water supply switching pipe 16 is inserted is integrally projected from the center toward the rear. The plate-shaped protrusions 36b, 36b were erected on the upper surface of the center with a space. The slide plate 36 is placed on the upper surface of the step portion 32e, the elastic claw piece 32d formed on the step portion 32e engages with the upper surface of the slide plate 36, and the ring 36a supplies water through the elongated hole 32c. The lower part of the water supply switching pipe 16 is inserted into the ring 36a so as to protrude into the support 32a.

In the figure, reference numeral 38 denotes a slide knob that engages with the slide plate 36. The knob 38b projects upward from the central upper surface of the slide plate 38a having a substantially U-shaped cross section, and the projection 38c faces downward from the lower surface. The protrusion 38c is inserted between the protrusions 36b, 36b of the slide plate 36 so that the slide knob 38 engages with the slide plate 36. Then, the slide knob 38, the slide plate 36 and the water supply switching pipe 16 constitute a water supply switching device.

The operation panel 31 is to be combined with the upper surface of the panel base 32 above these water supply switching devices. The operation panel 31 is positioned on the upper surface in the front and rear direction to form window holes 31b and 31c, and the slide knob 38 is provided from the window hole 31b. Of the sliding plate 38a protrudes, and the L-shaped locking piece 31a formed on the edge of the window hole 31b in the longitudinal direction engages with the lower edge of the sliding plate 38a. Further, the connection tube 32b of the panel base 32 projects from the other window hole 31c.

Reference numeral 33 in the drawing denotes an auxiliary panel fitted on the upper surface of the operation panel 31, which has a recess 33b and a window hole 33d, and a circular hole 33c is further formed in the recess 33b. The formed ridge 33a is fitted to the operation panel 31, the connecting cylinder 32b projects from the circular hole 33c, and the knob 38b of the slide knob 38 projects from the window hole 33d.

Reference numeral 13 in the drawing is a water supply case attached below the panel base 32, and left and right water channels are formed which are divided into a washing tub side and a dehydration tub side. The upper folded portion of the washing tub 2 is fitted on the outer side of the outer case 1, and the upper surface is joined to the panel base 32.

Next, the operation will be described. To wash water by supplying water to the washing tub side, pinch the knob 38b of the slide knob 38 and slide it to the left along the window hole 33d, the slide plate 38a moves to the left, and The slide plate 36 also moves to the left on the step 32e via the piece 38c and the protrusion 36b of the slide plate 36, and as a result, the ring 36a also moves to the left and is inserted into this ring 36a. The lower part of the water supply switching pipe 16 is pushed to the left, the water supply switching pipe 16 is curved to the left at the position of the flexible portion 16b, and the discharge port 16a moves to the water passage on the washing tub 2 side.

In order to perform dewatering and rinsing by supplying water to the dehydration tank side, by pinching the knob 38b of the slide knob 38 and sliding it to the right along the window hole 33d, contrary to the above operation, Similarly, the slide plate 38a and the slide plate 36 also move to the right, and the discharge port 16a of the water supply switching pipe 16 moves to the water passage on the dehydration tank side.

[0012]

[Problems to be solved by the device]

 In this way, the water supply is switched by sliding the knob 38b along the window hole 33d along the window hole 33d. When the knob 38b is moved to the left end or the right end of the window hole 33d and abuts there, the washing tub side or The water supply switching position is to the dehydration tank side, and the conventional switching device is not provided with a member for locking the knob 38d at the switching position at the left end or the right end position of the window hole 33d.

Therefore, even if the knob 38b is moved to the left or right end of the window hole 33d, the knob 38b is subsequently moved by a hand or other object and the knob 38b moves within the window hole 33d. In some cases, the water supply switching pipe 16 cannot be held at the switching position. Further, whether or not the knob 38b has accurately moved to the water supply switching position is confirmed only by whether or not the knob 38b has moved to the left end or the right end of the window hole 33d. Even if it has not moved, it may be mistakenly recognized as having moved, and the switching operation may not be performed reliably.

The object of the present invention is to eliminate the disadvantages of the conventional example, to reliably switch the water supply between the washing tub and the dewatering tub side, and after the switching, to reliably keep the water supply switching knob at the switching position. (EN) Provided is a water supply switching device for a washing machine which can be held and is highly reliable.

[0015]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a water supply switching device for a washing machine, wherein a slide lever associated with a water supply switching pipe is placed on a panel base, and a knob for water supply switching is attached to the slide lever. The gist of the present invention is that a leaf spring serving as a stopper is projectingly provided on the upper side, and a concave portion that engages with the leaf spring is formed on a lower surface of the slide lever at a water supply switching position between the washing tub side and the dewatering tub side.

[0016]

[Action]

 According to the present invention, when the slide lever moves to the respective water supply switching positions of the washing tub side and the dewatering tub side, a leaf spring protruding above the panel base is formed in the recess formed in the lower surface of the slide lever. The elastic force of the spring causes the spring to project, and the leaf spring and the recess are brought into an engaged state to lock the slide lever at the switching position. When the slide lever moves, the bottom surface of the slide lever slides on the top surface while pushing the leaf spring.

[0017]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a longitudinal side view showing an embodiment of a water supply switching device for a washing machine according to the present invention, FIG. 2 is an exploded perspective view of the same as above, and the same components as those of the conventional example shown in FIG. It is attached.

Explaining from the overall structure of the washing machine, as shown in FIG. 4, an operation panel 4 is provided on the rear upper surface of the outer box 1 in which a washing tub 2 and a dehydration tub 3 are provided side by side. The knobs 7 and 8 of the timer for setting the washing time and the dehydration time are attached via the auxiliary panel 5, and the front side of the operation panel 4 is lowered from the knobs 7 and 8 by one step, and near the top opening of the washing tub 2. Further, a drainage switching knob 10 for opening and closing the drainage valve and a water supply switching knob 9 for switching the water supply to the washing tub 2 and the dehydration tub 3 are provided. In the figure, 11 is a washing lid, 12 is a dehydrating lid, 13 is a water supply case, and 14 is a pulsator arranged at the bottom of the washing tub 2.

In the two-tub type washing machine having such a configuration, a panel base 6 is combined below the operation panel 4 on which electric components such as a timer are arranged, and the operation panel 4 and the panel base 6 form a panel box. To do. An opening 6a for water supply is formed substantially at the center in the longitudinal direction of the panel base 6, and a box-shaped water supply support base 6b is provided so as to cover the opening 6a, and the box-shaped water supply support base 6b is provided above the water supply support base 6b. A connecting cylinder 6c through which the water supply hose is connected is further integrally formed.

Reference numeral 6d in the drawing denotes a ring-shaped rib projecting upward from the water supply support base 6b so as to surround the periphery of the connection cylinder 6c. Inside the rib 6d, an upper surface of the water supply support base 6b for draining water is provided. The hole 6e was formed.

In addition, a long hole 6f into which a water supply switching plate to be described later is inserted is formed in the lower part on the front surface side of the side wall of the water supply support base 6b, and a rear surface side is cut out to form an opening surface 6h for exhaust, A tunnel-shaped partition wall 6i is formed so as to be coupled to the opening surface 6h. The front end of the partition wall 6i is an open surface to the outside of the machine, which is covered with a back plate 4b of the operation panel 4, and an exhaust hole 4c for venting gas is formed in the back plate 4b.

Reference numeral 16 in the drawing denotes a water supply switching pipe, the upper end of which is the root is inserted and fixed to the lower part of the connecting cylinder 6c, and the discharge port 16a at the lower end faces the opening 6a formed in the panel base 6. It is a unique one, and is formed in the middle in a bellows-like flexible portion 16b.

In the figure, reference numeral 17 denotes a water supply switching plate. A rectangular plate 17a having ribs around the periphery thereof is provided with a rib 17 to form a locking hole 17b into which the lower portion of the water supply switching pipe 16 is inserted. A downwardly projecting hook portion 17c having an L-shaped cross section is integrally provided on the rear portion as a support projection piece, and a plate-like projection piece 17d is also integrally projected on the lower front portion of the plate body 17a as a support projection piece. Set up.

Further, as the vertical movement restricting member of the water supply switching plate 17, two upwardly facing substantially U-shaped hook portions 17e, 17e are provided at an upper portion of the front surface of the plate body 17a so as to project at intervals, and the plate-like protrusion 17d is provided. An engaging projecting rod 17f that engages with a slide lever described later is integrally provided on the upper surface of the above.

Reference numeral 19 in the figure denotes a slide lever that engages with the water supply switching plate 17 and slides on the panel base 6. The slide lever 19 is raised at one end so that the engagement protruding rod of the water supply switching plate 17 is located there. An engaging hole 19a into which 17f is inserted is formed, and an engaging hole 19b for engaging with a later-described lever holder 18 is formed at the other end.

Further, as shown in FIG. 3, the lower surface has a substantially semicircular cross section for locating to the left and right and locking the slide lever at each of the water supply switching positions on the washing tub 2 side and the dehydration tub 3 side. Engagement recesses 19c and 19c are formed, and on the other hand, a plate spring 20 is disposed on the panel base 6 as a stopper that engages with the engagement recess 19c. The spring 20 is bent in the middle, and is attached to the panel base 6 so that the bent portion 20a projects above the panel base 6.

The lever holder 18 includes a slide plate 18a slidably mounted in a guide groove 6l formed in the panel base 6 and a holder portion projecting downward from an elongated hole 6g formed at the bottom of the guide groove 6l. The holder part is integrally formed with an inward locking projection 18c at the tips of a pair of front and rear holder claws 18b. Then, the holder claw 18b and the locking hole 19b of the slide lever 19 are engaged with each other to connect the slide lever 19 and the lever holder 18, and the water supply switching knob 9 mounted on the operation panel 4 for sliding is provided. The locking recess 9b provided at the tip of the locking piece 9a protruding downward from the above engages with the locking projection 18c to connect the water supply switching knob 9 and the lever holder 18.

The water supply case 13 can be attached by being positioned below the water supply switching pipe 16 and the water supply opening 6a. The water supply case 13 forms left and right water channels that are divided into the washing tub 2 side and the dehydration tub 3 side.

As described above, the knob 9, the lever holder 18, the slide lever 19, the water supply switching plate 17, the water supply switching pipe 16 and the panel base 6 constitute a water supply switching device, and the slide lever 19 is operated by the knob 9. It is slidably mounted on the panel base 6.

Next, the operation will be described. For example, to supply water into the washing tub 2, slide the knob 9 to the left, and the slide lever 19 slides left on the panel base 6 via the lever holder 18, and the tip of the slide lever 19 moves. The water supply switching plate 17 also slides leftward in the water supply support base 6b via the engagement projecting rod 17f of the water supply switching plate 17 inserted in the engagement hole 19a. At this time, the slide lever 19 moves on the panel base 6 so as to crush the curved portion 20a of the leaf spring 20 projecting on the panel base 6 with its lower surface.

When the knob 9 moves to the water supply switching position, the left engagement recess 19c formed on the lower surface of the slide lever 19 is located at the location where the leaf spring 20 is arranged, and the curved portion 20a of the leaf spring 20 is located. The elastic force moves into the engaging concave portion 19c and locks the slide lever 19 at the water supply switching position. At this time, the user feels that the leaf spring 20 enters into the engaging recess 19c through the knob 9. Therefore, the slide operation of the knob 9 causes the water feed switching plate 17 and the slide lever 19 to move correctly to the water feed switching position. You can see that it has moved.

When the water supply switching plate 17 moves to the water supply switching position, the lower part of the water supply switching pipe 16 also moves, the flexible portion 16b in the middle bends to the left, and the discharge port 16a at the lower part of the water supply case 13 moves. It opens above the water channel 13a on the side of the washing tub 2.

When the tap is opened, tap water is discharged into the water supply case 13 from the opening 6a through the water supply hose, the connection tube 6c, and the water supply switching pipe 16. At this time, since the leaf spring 20 is fitted into the engaging recess 19c of the slide lever 19 and the leaf spring 20 is used as a stopper, a slight rightward force is exerted on the knob 9 during water supply. Even if added, the knob 9 is prevented from moving, and the knob 9, the slide lever 19, the water supply switching plate 17, and the water supply switching pipe 16 are held at this water supply switching position.

In order to switch the water supply to the dehydration tub 3 side, the knob 9 is held and the slide lever 19 is moved to the right against the elasticity of the leaf spring 20, so that the curved portion 20 a of the leaf spring 20 moves. While being crushed by the lower surface of the plate, it comes out of the engaging recess 19c, and the engagement between the leaf spring 20 and the engaging recess 19c is released. Then, when the knob 9 is further slid to the right, the slide lever 19 moves to the water supply switching position to the dehydration tank 3 side while pressing the leaf spring 20 with the lower surface, and at the water supply switching position, this time the left side engagement. The curved portion 20a of the leaf spring 20 is fitted into the fitting recess 19c.

In the above embodiment, the engaging recesses 19c, 19c are formed on the slide lever 19 side at two positions on the left and right sides, and one leaf spring 20 is arranged on the panel base 6 side. However, the present invention is not limited to this. Instead, the engaging recess provided on the slide lever 19 side may be provided at one place, and the leaf spring provided on the panel base side may be provided at two places.

[0036]

[Effect of the device]

 As described above, the water supply switching device of the washing machine of the present invention can lock the switching knob at the water supply switching position, so that the knob can be prevented from moving during water supply, and the switching position is easy. Moreover, since it can be confirmed correctly, the switching operation is easy to perform and the reliability is improved.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing an embodiment of a water supply switching device for a washing machine according to the present invention.

FIG. 2 is an exploded perspective view showing an embodiment of a water supply switching device for a washing machine according to the present invention.

FIG. 3 is a vertical sectional front view of a main part of the water supply switching device of the present invention.

FIG. 4 is a perspective view of a washing machine in which the water supply switching device of the present invention is implemented.

FIG. 5 is a vertical sectional side view showing a conventional example of a water supply switching device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Outer box 2 ... Washing tub 3 ... Dehydration tub 4 ... Operation panel 4a ... Overhang part 4b ... Back plate 4c ... Exhaust hole 5 ... Auxiliary panel 6 ... Panel base 6a ... Opening 6b ... Water supply support 6c ... Connection cylinder 6d ... rib 6e ... hole for draining water 6f ... long hole 6g ... long hole 6h ... opening surface 6i ... partition wall 6l ... guide groove 7 ... timer knob 8 ... timer knob 9 ... water supply switching knob 9a ... locking piece 9b ... Locking recess 10 ... Knob for switching drainage 11 ... Washing lid 12 ... Dehydration lid 13 ... Water supply case 13a ... Water channel 14 ... Pulsator 16 ... Water supply switching pipe 16a ... Discharge port 16b ... Flexible part 17 ... Water supply switching plate 17a ... Plate 17b ... Locking hole 17c ... Hook part 17d ... Plate-shaped projecting piece 17e ... Hook part 17f ... Engaging projection rod 18 ... Lever holder 18a ... Slide plate 18b ... Holder claw 18c ... Locking Protrusion 19 ... Slide lever 19a ... Engagement hole 19b ... Engagement hole 19c ... Engagement recess 20 ... Leaf spring 20a ... Curved portion 30 ... Water supply hose 31 ... Operation panel 31a ... Engagement piece 31b ... Window hole 31c ... Window hole 32 ... Panel base 32a ... Water supply support 32b ... Connection tube 32c ... Long hole 32d ... Elastic claw piece 32e ... Step 32f ... Rib 33 ... Auxiliary panel 33a ... Projection 33b ... Recess 33c ... Circular hole 33d ... Window hole 36 ... Slide part 36a ... Ring 36b ... Projection piece 38 ... Slide knob 38a ... Slide plate 38b ... knob 38c ... Projection piece 38d ... Pressing piece

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Takeshi Sugino, 1-1 1-1 Yamate, Funabashi-shi, Chiba Nippon-Kentsu Funabashi Manufacturing Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A water supply switching device for a washing machine, wherein a slide lever associated with a water supply switching pipe is placed on a panel base, and a knob for water supply switching is attached to the slide lever, which serves as a stopper on the panel base. A water supply switching device for a washing machine, wherein a leaf spring is provided so as to project, and a concave portion which engages with the leaf spring is formed on a lower surface of the slide lever at a water supply switching position between a washing tub side and a dewatering tub side.