JPH0136269Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a time scale device for a time switch for late-night power, which controls the opening and closing of a specific load such as a water heater or a storage heater at a certain time of the day.

Conventionally, this type of time switch has been widely used as a late-night power load controller in households that require electricity from various power companies, but due to recent revisions to electricity rates, the leveling of power consumption, and requests from customers, it has become increasingly difficult to turn on electricity. It is required to be able to change the time or to vary the start time in any number of ways. However, the structure of the conventional time scale device was as shown in FIGS. 1 and 2. That is, a time scale 101 and a switch-on time zone 102 are attached to the inner circumference, and the time scale 101 is also attached to the inner circumference.
a time scale plate 1 having guide holes 1a, 1b, 1c along the time scale plate 1 and a time scale plate 1 formed in a ring shape;
1, a guide pin 201, a special nut 202, and a knob 2 so that the hour plate 2 is superimposed on the hour dial plate 1 and can be rotated or tightened.
It has 03. Note that the guide pin 201 fits into the guide hole 1a, and the knob 203 and special nut 20
2 is screwed through the guide holes 1b and 1c. When changing the energization time, first loosen the knob 203 by hand, then rotate the time number plate 2 along the guide holes 1a, 1b, 1c, and set the time to point A of the power-on time zone 102. Match the desired start time number on number board 2 and turn knob 203.
Most of the methods involved tightening the Therefore, if the electricity start time needs to be changed due to a change in the electricity supply regulations for each power source, the user (person related to the electric power company) or the manufacturer must turn the knob 20.
3 must be loosened to reset the hour dial plate 2, making the setting operation troublesome, and if you forget to tighten the knob 203 after the setting operation, the hour dial plate 2 will move unnecessarily and the time will be displayed. There were some drawbacks, such as going crazy.

This invention was made in view of the above circumstances, and the object thereof is to provide a time scale device for a time switch that is simple in structure and easy to set and operate.

An embodiment of this invention will be described below with reference to FIGS. 3 to 5. In Figures 3 to 5, 1
is a time scale plate, with a time scale 101 engraved on the circumference, and in order to distinguish between the switch ON time zone 102 and the non-ON time zone, the scale line within the range A is white; The scale lines are color coded in black. Reference numeral 2 denotes a time numeral plate which overlaps the outer periphery of the time scale 101 of the scale plate 1 and has hour numerals 204 arranged at equal intervals. As shown in FIG. 5, it is made up of arc-shaped guide holes 1b and 1c of the time scale plate 1 and two holes in which a knob 203, which will be described later, can be installed.

203 is a knob that connects the guide holes 1b and 1c of the time dial plate 1 and the hole part of the hour number plate 2 to the cylindrical part 20.
After passing the compression spring 205 through 3a, the time scale plate 1
It is constructed by overlapping the hour dial plate 2 and fixing the fixing washer 202 to the cylindrical portion 203b on the back side of the hour dial plate 1.

3 is a time indicator plate placed in the hole of the time scale plate 1. A pointer 301 for indicating the current time and a hook 302 for operation when setting the current time are provided on the time scale plate 1 side. Although not shown, an opening/closing mechanism for controlling the switch is added to the side. Numeral 4 is a nut for fixing the time indicator plate 3 to the fixed shaft. An actual operation with the above configuration will be explained. First, 2 on the time number plate 2
Press and turn the heads of the knobs 203 in the direction of arrow B shown in FIG. match. Next, hold the hook 302 of the time indicator plate 3 with your hand and
Turn in the direction of the arrow shown to set the current time.

In one embodiment of the present invention, in order to slidably fix the hour dial plate 2 to the hour dial plate 1, a compression spring 205 is passed through the cylindrical portion 203a of the knob 203, and the cylindrical portion on the back side of the hour dial plate 1 is inserted into the cylindrical portion 203a of the knob 203. Although the fixing washer 202 is fixed to the fixing washer 203b, the same effect can be achieved even if the knob 203 is prevented from falling off by using an E-shaped retaining ring other than the fixing washer 202, for example.
In addition, the guide holes 1b and 1c of the time dial plate 1 and the cylindrical portion 203a of the knob 203 also serve as the guide hole 1a and the guide pin 201, so even if the guide pin 201 in the present invention is abolished, the time dial plate 2 There is no problem with operability.

As described above, according to this invention, the time dial plate and the hour numeral plate are overlapped by the spring pressure of the compression spring, so the knob is pushed down without rotating and relaxing the knob, and the direction of rotation of the hour numeral plate is By pressing the above-mentioned knob, the hour dial rotates and the time can be set, which has the effect of making setting operations easier and reliability improved.

[Brief explanation of the drawing]

Figures 1 and 2 show the time scale device of a conventional time switch, Figure 1 is its front view, Figure 2 is its side view, and Figures 3, 4, and 5 are one example of this invention. 3 is a front view of the embodiment, FIG. 4 is a side view thereof, and FIG. 5 is a side sectional view of a main part thereof. In the figure, 1 is a time scale plate, 2 is a time number plate,
3 is a time indicator board, 203 is a knob, and 205 is a compression spring. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] In a device equipped with a time indicating plate that rotates at a constant speed and an opening/closing mechanism that operates a switch for a certain period of time in response to the rotation of the time indicating plate, the operating time of the switch attached corresponding to the time indicating plate. A time scale plate having a scale and an arcuate guide hole, a time number plate placed overlapping the time scale plate and having hour numbers corresponding to the operating time scale, and a time number plate placed on the back side of the time scale plate. The washer is screwed to the washer through a compression spring, and the time numeral plate is attached to the time scale plate by the pressure of the compression spring so that it can rotate within the angular range defined by the guide hole with respect to the time scale plate. A time scale device for a time switch, characterized in that it is equipped with a knob.