JPH047208B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a timer device for an electric cooker for cooking rice and the like.

BACKGROUND ART A conventional timer device for an electric cooker has a structure as shown in FIG. 8, as shown in, for example, Japanese Utility Model Application Publication No. 58-49630. That is, the timer motor 2 is fixed with screws 3 within the display panel 1 of the electric cooker. The scale panel 4 on which the scale is printed is adhered to the front recess 1a of the display panel 1 using a pressure-sensitive adhesive or the like. The timer shaft 5 of the timer motor 2 projects forward from the display panel 1,
A dial knob 6 is fitted onto this timer shaft 5. This dial knob 6 is made of a translucent material and has an elongated recess 6a into which a red color can be inserted on the back side. A red line formed by filling the recess 6a with red color serves as a mark when setting the time.
Further, it is customary to adhere a plate 7 on which a warning message is printed to the front recess 6b of the dial knob 6.

Problems to be Solved by the Invention In such a conventional configuration, when setting the time of the timer, it is common to set the time to the number on the scale panel 4, but since the rotation speed of the timer motor 2 is proportional to the frequency. , two types, one for 50Hz and one for 60Hz, were printed on the same side, so in this case the numbers were small and difficult to see. It was particularly difficult for people with visual impairments to use.

It is also possible to control the rotation speed of the timer motor 2 using a microcomputer, etc. to keep it constant, but in this case, it is not possible to share it with conventional parts, which may lengthen the development schedule or There were problems such as an increase in the number of parts, which went against resource conservation.

The present invention solves these problems,
In addition to making the 50Hz and 60Hz numbers on the scale panel larger and easier to see, the number of timer and control parts can be shared with conventional models, and when moving from a 50Hz area to a 60Hz area,
It is an object of the present invention to enable the display of a scale panel to be easily changed, and further to prevent the scale plate from being damaged when changing the scale plate.

Means for Solving the Problems In order to solve the above problems, the present invention provides a display board that is fixed to the side surface of the main body of an electric cooker, has a circular recess on the front surface, and has a hole in the center of the recess. and a timer fixed inside the display board and having a shaft at the center of the central hole of the recess of the display board;
A knob that fits on the shaft of this timer, a ring-shaped 50Hz scale plate that fits and is fixed in the recess of the display board and is separated at one point, and rotates and slides in the recess of the display board. A ring-shaped 60Hz scale plate with one part cut off, and a front-loading 50Hz scale plate and a 60Hz scale plate are fitted into the center holes, and are fitted and fixed into the center hole of the concave part of the display plate. a scale plate holding ring, the cut-off end face of the 60Hz scale plate slides protruding from the cut-off end face of the 50Hz scale plate, and is provided near the outer periphery of the end face of the 60Hz scale plate. The holes provided are blind blind holes.

Effect According to the above configuration, 50Hz is generated within the recessed part on the front of the display board.
It is possible to easily convert the display to 60Hz display or from 60Hz display to 50Hz display, and since the hole provided near the outer periphery of the end face of the 60Hz scale plate is a blind hole with no penetration, the 60Hz scale plate can be easily converted from a nail or bamboo. The presence of this blind hole prevents the surface of the 50Hz scale plate from being scratched even if it is rotated and slid with an object with a sharp tip, such as a comb.

Embodiment Hereinafter, an embodiment of the present invention will be described based on FIGS. 1 to 7.

In Fig. 7, 10 is the main body of the electric cooker;
A display board 11 on which cooking contents (not shown) are written is fixed to the side surface of the main body 10. This display board 1
A timer 13 is fixed inside the device 1 via a substrate 12. The shaft 13a of this timer 13 is D-cut, as shown in FIG.

Reference numeral 14 denotes a knob that fits onto the D-cut shaft 13a and operates the timer 13.The details of this knob 14 will be explained next with reference to FIG. Reference numeral 14a is a matching groove formed by adding color to the recess on the back surface of the knob 14 made of a transparent material. Reference numeral 15 denotes a 50Hz scale plate on which a 50Hz display is printed, and this 50Hz scale plate 15 is formed into a ring shape, with a part of the ring being cut away. 15a is this cut-off end face. 16 is 60Hz with the 60Hz display printed on it.
This 60Hz scale plate 16 also has a ring partially cut off. 16a is this cut-off end face. 15d is a protrusion provided on the inner circumference of the ring of the 50Hz scale plate 15, and this protrusion 15b is fitted into a protrusion recess 11c provided on the outer periphery of a hole 11b located at the center of the circular recess 11a on the front surface of the front display board 11. , rotation is stopped. 11d is a rotation stopper that restricts rotation above a certain level when the 60Hz scale plate 16 rotates.

Reference numeral 17 denotes a scale plate holding ring, and this scale plate holding ring 17 fits into the center hole 15c provided in the 50Hz scale plate 15 and the center hole 16b provided in the 60Hz scale plate 16. A claw 17a for fixing to the hole 11b and a rotation stopper 17b are provided. The detent 17b fits into the groove 11e of the display board 11.

FIG. 2 shows the details of the 50Hz scale plate 15, and 15d is an end face 15 constructed by cutting off a part of the ring that constitutes the 50Hz scale plate 15.
This notch 1 is formed on the outer periphery of a.
5d is a hole 16c provided near the outer periphery of the end face 16a of the 60Hz scale plate 16. This hole 16c is a non-penetrating blind hole, and is deep enough to accommodate a nail, bamboo comb, etc. when rotating and sliding the 60Hz scale plate 16.

FIG. 4 shows a 60Hz scale plate 16 superimposed under the 50Hz scale plate 15, and an end face 16 on the end face 15a.
This figure shows the state in which the 60Hz scale plate 16 is inserted into the hole 16c provided near the outer periphery of the end face 16a, and when the tip of a nail or bamboo comb is inserted into the hole 16c and rotated counterclockwise, the 60Hz scale plate 16 becomes the 50Hz scale plate. 15. This state is shown in FIG. If the rotation is further continued from this state, the state shown in Fig. 6 will be reached, and the 60Hz scale plate 16
is placed on the 50Hz scale plate 15, and its display is converted.

If you turn the 60Hz scale plate 16 clockwise from the state shown in Fig. 6 above, it will return to the original state shown in Fig. 4.
It is easy to convert between 50Hz and 60Hz display. Also, even if you reverse the 50Hz display and 60Hz display,
It has similar effects.

Effects of the Invention As described above, according to the present invention, the 50Hz scale plate and
Either side of the 60Hz scale plate can be raised freely, and as a result, each displayed number can be made larger, making it easier for elderly people with visual impairments to set the time than before. It is something. Further, the timer motor may be proportional to the same frequency as in the past, and therefore there is no need to provide components for automatic frequency switching on the control circuit board, allowing common use of components and reduction in quantity. Furthermore, the display can be easily converted when moving from a 50Hz area to a 60Hz area.

In addition, the holes provided near the outer periphery of the end face of the 60Hz scale plate are blind holes that do not penetrate, so even if the 60Hz scale plate is rotated and slid with a sharp object such as a nail or bamboo comb, it will not work. 50Hz due to the presence of blind holes
This prevents damage to the surface of the scale plate, and when turned with strong force, nails, bamboo combs, etc. can be easily removed from the blind holes, making the scale plate itself less likely to be damaged. the result,
It can be used conveniently for a long period of time and has various excellent effects.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view of the main parts of a timer device for an electric cooker showing one embodiment of the present invention, FIG. 2 is a perspective view of a 50Hz scale plate in the timer device, and FIG.
The figure shows the 60Hz scale plate in the same timer device, where a is a perspective view, b is an enlarged sectional view of the same main part,
Figures 4 to 6 are perspective views showing the operation of the scale plate;
FIG. 7 is a partially sectional front view of the electric cooking appliance, and FIG. 8 is an exploded perspective view of a conventional timer device. 10... Main body, 11... Display board, 11a... Circular recess, 11b... Hole, 13... Timer, 14
...Knob, 15...50Hz scale plate, 15a...
End face, 16c...Center hole, 16...60Hz scale plate, 16a...End face, 16b...Center hole, 16c
...hole, 17...scale plate holding ring.

Claims (1)

[Claims] 1. A display board fixed to the side of the main body of the electric cooking device and having a circular recess in the front and a hole in the center of the recess, and a display board fixed to the inside of the display board,
and a timer having a shaft in the center of the center hole of the recess of the display board, a knob fitted to the shaft of the timer, and a ring that is fitted and fixed in the recess of the display board and separated at one point. a ring-shaped 60Hz scale plate that rotates and slides in the recessed part of the display plate and is cut off at one point;
a 50Hz scale plate and a scale plate holding ring that fits into the center hole of the 60Hz scale plate and is fitted and fixed in the center hole of the concave portion of the display plate, and the separated end face of the 60Hz scale plate; , protruding from the separated end face of the 50Hz scale plate, and
In addition to switching the top and bottom of the scale plate, the above 60Hz
A timer device for an electric cooker in which the hole provided near the outer periphery of the end face of the scale plate is a non-penetrating blind hole.