JP3152798B2 - Door lock device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door lock device for locking a door in a closed state by rotating a lever.

[0002]

2. Description of the Related Art Conventionally, in a dishwasher, for example, as shown in FIG. 7, a lever 4 and a lock plate 5 are pivotally supported by a pin 6 on a mounting plate 3 inside a handle portion 2 of a door 1. When the lever 4 is rotated by a knob 7, the lock plate 5 is also integrally rotated. With this rotation, the lock piece 10 at the tip end of the lock plate 5 that has passed through the hole 9 of the main body 8 is provided. Is provided in a locking portion (not shown) adjacent to the hole 9 to lock the door 1 in a closed state.

In this case, when the lever 4 is rotated in the opposite direction from the locked state, the lock piece 10 is unlocked from the locking portion, and the lock of the door 1 is unlocked. After that, the door 1 can be opened by putting a hand on the handle 2.

[0004]

In the case of the above, the pin 6 is pivotally supported on the mounting plate 3 by the lever 4 and the lock plate 5, so that the tip 6a protrudes below the mounting plate 3. Although the protruding portion 6a is generally swaged, even if it is not swaged, when the door 1 is opened, the fingertip of the hand applied to the handwork portion 2 touches the protruding portion 6a to cause an injury. There is a risk.

For this purpose, an inner cover 11 is provided inside the handle 2 so as to shield the space between the pin 6 and the protruding portion 6a. It is necessary to form a guide groove 12 also shown in FIG. 8 between the inner cover 11 and the handwork portion 2, and since the fingertip of the hand applied to the handwork portion 2 touches the guide groove 12, the tactile sensation is not good. Had problems.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide an excellent door lock device which can obtain the safety of a fingertip at the time of a door opening operation and a good tactile feel. is there.

Another object of the present invention is to provide a door lock device which can obtain a necessary structure with as few parts as possible.

[0008]

In order to achieve the above object, in the door lock device of the present invention, the lock piece is pivotally supported and rotated by a pin inside the handle portion of the door so that the lock piece on the main body side is moved. An opening formed along the turning locus of the lever inside the handle of the door for turning the lever, and a lever for locking and unlocking the locking portion; It is characterized by comprising a shielding plate which covers the opening almost flush with the opening forming surface and is provided so as to be rotated together with the lever.

In this case, it is preferable that the shielding plate is rotated together with the lever by engagement.

[0010]

According to the above means, the shield plate prevents the fingertip from touching the protruding portion of the pin, and the shield plate makes the opening for lever rotation substantially flush with the opening forming surface. By covering, it is possible to eliminate the existence of a part that impairs the tactile sensation of the fingertip.

In the case where the shielding plate is rotated together with the lever by engaging with the lever, it is possible to connect the shielding plates without using separate components such as screws.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a door lock device of a dishwasher will be described below with reference to FIGS. First, FIG. 2 shows a main body 21 of a dishwasher, on which a door 22 is pivotably supported by a hinge pin 23 shown in FIG. A control panel 24 is mounted on the upper end of the door 22 on the side opposite to the pivotal support. The control panel 24 has a recess 25 for handling and a handling portion 26 located above the recess 25.

The handle 2 of the control panel 24
As shown in FIGS. 4 and 5, a mounting plate 27 is mounted on the inner side of the mounting plate 6. A lever 28 and a lock plate 29 are pivotally supported by a pin 30 at the center of the mounting plate 27. ing. In this case, the lever 28 extends downwardly and forwardly from the part pivotally supported by the pin 30 and has a knob 31 at its front end, while the lock plate 2
9 extends upwardly and rearwardly from the part pivotally supported by the pin 30, forming a locking piece 32 at its rear end. Further, the pin 30 caulks a portion 30a projecting downward from the mounting plate 27.

On the other hand, an elongated inner cover 33 is mounted below the mounting plate 27, and a shielding plate 35 is rotated by a shaft 36 on the lower surface side of a boss 34 at the center of the inner cover 33. Installed as possible. In this case, the boss portion 34 is located immediately below the pivotal portion of the lever 28 and the lock plate 29 by the pin 30. Therefore, the lever 28, the lock plate 29, and the shielding plate 35 are concentric.
The shielding plate 35 has a circular shape, and has cutouts 37 at two locations around the periphery.
The notch 37 at one position is fitted to and engaged with the lever 28, and the engagement causes the lever 28 to rotate together with the lever 28.

Further, an opening 38 shown in FIG. 1 is formed in the inside of the handle portion 26 of the control panel 24. The opening 38 is for rotating the lever 28, and its front edge has an arc shape along the rotation locus of the lever 28.
The cover 5 is flush with the surface 39 on which the opening 38 is formed (opening forming surface) 39 and is rotated along the arc-shaped edge.

Now, in the case of the configuration as described above,
When the door 22 is closed as shown in FIG. 4 and the lever 28 is rotated clockwise while holding the knob 31, the lock plate 29 is integrally rotated, and the lock piece 32 passing through the hole 40 of the main body 21 is moved. The door 22 is locked by a locking portion (not shown) adjacent to the hole 40 to lock the door 22 in a closed state.

When the lever 28 is rotated in the opposite direction from the locked state, the lock piece 32 is unlocked from the locking portion and the door 22 is unlocked. The door 22 can be opened by putting a hand on the portion 26.

Thus, when a hand is applied to the handle 26, the fingertip is prevented from touching the protruding portion 30a of the pin 30 by the shielding plate 35, thereby preventing the fingertip from being injured. Safety can be ensured.

The shield plate 35 covers the opening 38 for the rotation of the lever 28 flush with the surface 39 on which the opening 38 is formed. Can be eliminated,
The opening operation of the door 22 can be performed with a good tactile sensation.

Since the shielding plate 35 is rotated together with the lever 28 by rotating the shielding plate 35, the coupling between them can be made without the need for a separate component such as a screw. As few parts as possible can be obtained.

FIG. 6 shows a different embodiment of the present invention.
Is formed, and the hole 41 is engaged with the lever 28 through the lever 28. Even in this case, the shielding plate 35 can be rotated together with the lever 28 without requiring a separate component such as a screw.

In addition, the present invention is not limited to the embodiment described above and shown in the drawings. In particular, the present invention is not limited to the door lock device of the dishwasher, and the door lock device of the device having the same situation as that of the embodiment. As well as applicable,
The present invention can be implemented with appropriate changes without departing from the scope.

[0023]

The door lock device of the present invention is as described above, and has the following effects. First, in a lock for closing a door pivotally supported by a main body so as to be openable and closable, a lock piece is locked on the main body side by being pivotally supported and rotated by a pin inside a handle portion of the door. An opening formed along the turning locus of the lever inside the handle of the door for rotating the lever, and a lever for locking and unlocking the lever; By providing a shielding plate provided so as to be substantially coplanar with the opening forming surface and to be rotated together with the lever, the safety of the fingertip with respect to the projecting portion of the pin when the door is opened can be reduced. Good tactile sensation can also be obtained.

Second, since the above-mentioned shield plate is rotated together with the lever by engaging with the lever, a necessary structure can be obtained with as few parts as possible.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a main part showing one embodiment of the present invention.

FIG. 2 is an overall front view of the dishwasher.

FIG. 3 is an overall perspective view of the same.

FIG. 4 is a longitudinal sectional side view of a main part along the line AA in FIG. 2;

FIG. 5 is an exploded perspective view of the same part.

FIG. 6 is a view corresponding to FIG. 1 showing a different embodiment of the present invention.

FIG. 7 shows a conventional example and is equivalent to FIG.

FIG. 8 is a diagram corresponding to FIG. 1;

[Explanation of symbols]

21 is a main body, 22 is a door, 26 is a handle, 28 is a lever, 29 is a lock plate, 30 is a pin, 32 is a lock piece, 3
Reference numeral 5 denotes a shielding plate, 38 denotes an opening, and 39 denotes an opening forming surface.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E05C 3/04 A47L 15/42

Claims (2)

(57) [Claims] 1. A lock for locking a door pivotally supported on a main body so as to be able to open and close in a closed state. A lever that locks and unlocks the stop portion, an opening formed along the turning locus of the lever inside the handle portion of the door for turning the lever,
A door lock device, comprising: a shielding plate that covers the opening almost flush with the surface on which the opening is formed and is provided so as to be rotated together with the lever. 2. The door lock device according to claim 1, wherein the shielding plate is rotated together with the lever by engaging with the lever.