JPH02836Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] This invention relates to a dial mechanism for a repeating time switch.

[Background technology]

A typical conventional repeatable time switch is shown in FIGS. 1 and 2. That is, the dial body 1 rotates at a constant speed at a constant cycle, and a plurality of setters 2 attached to the outer periphery of the dial body 1 actuate a switch 3 to turn on/off electrical equipment at a predetermined time. This has a configuration in which a setter 2 is inserted and fixed into a plurality of setter holes 4 arranged in a row on the peripheral edge of a dial body 1, and the end of the setter 2 switches a switch 3. For example, the setter hole 4 is
They are set at 15 minute intervals. The switch 3 is opened and closed each time each setter 2 operates the switch lever 3a with which it engages.

In this conventional device, the setting element 2 is the dial body 1.
It is prepared separately from the switch 3, and the setter 2 is inserted into the setter hole 4 corresponding to the time when the switch 3 needs to be changed.
The setter 2 had to be inserted and fixed, and the setter 2 had to be removed from the setter hole 4, which did not require switching. As a result, changing the mounting position of the setting element 2 in accordance with a change in the switch switching time is relatively complicated and easy to make mistakes, and the setting element 2 that is not in use is easily lost. Furthermore, it was necessary to provide a housing section for the unused setter 2 in the time switch main body 5.

Furthermore, in conventional devices, there are those that use a single-shaped setter for both on-off operations, and those that use a setter that has a dedicated shape for on-off operations. In the former case, there is a disadvantage that it is difficult to distinguish between on and off operations at each time when switching a complex program, and in the latter case, the structure is complex and it is not easy to replace the program. It was hot. Furthermore, since the parts themselves are small and in large quantity (96 pieces per machine at 15 minute intervals), managing the parts is difficult.

On the other hand, there was one in which a groove was formed in the setter hole and a setter was passed through the setter hole, having an overhang that slidably engaged with the groove.
−42586). This item is easy to operate the setter,
Moreover, there is no problem such as storage of unused setters.

However, since it is necessary to form a groove in the setter hole, the board for forming the setter hole needs to be composed of two parts, which requires assembly. It has the disadvantage that it is complicated because it needs to be assembled while matching.

[Purpose of invention]

The purpose of this invention is to provide a time switch dial mechanism that is easy to assemble.

[Disclosure of invention]

The dial mechanism of this invented time switch is
A dial body in which a plurality of slit-shaped setter holes extending in the radial direction are arranged in an annular manner and rotated at a constant cycle, and an insertion part inserted into the setter hole, and one end side of the insertion part a switch lever engaging claw provided on the other end of the insertion portion and guided on one side of the dial body; a setter that is provided on the side of the insertion portion and has an engagement piece that protrudes inward in the radial direction of the dial body and is movable in the radial direction;
and a spring member that is provided on the dial body and engages with the engagement piece that has moved inward in the radial direction.

According to the configuration of this invention, since the setter is guided and held on the edge of the setter hole by the switch lever engaging claw and cover protrusion of the setter, there is no need for a groove in the setter hole as in the conventional case. Therefore, since the dial body does not need to be composed of two parts, it is easy to assemble, the setter is easy to operate, and there is no need to store unused setters, so there is no problem of losing the setter. .

Embodiment An embodiment of this invention is shown in FIGS. 3 to 5. This dial mechanism consists of a dial body 6 and a plurality of (for example, 96) setting elements 7, and is driven by a rotatable switch lever installed corresponding to the back side of the dial body 6 and this switch lever. A time switch is configured with a micro switch (none of which is shown). The dial main body 6 is a disc-shaped member made of hard synthetic resin or metal, and is driven to rotate at a constant cycle by a clock mechanism (not shown). In the dial body 6, a large number of setter holes 8 along the radial direction are arranged in an annular manner on the outer periphery, and an insertion portion 7d of the setter 7 is fitted into each setter hole 8 so as to be freely movable forward and backward in the radial direction. Each setter hole 8
A notch 9 cut out from the back surface is formed on the inside in the radial direction, and a back surface protrusion 10 is formed at the entrance portion of the notch 9. Further, a ring-shaped spring member 11 is attached to the back surface of the dial body 6, and has elastic pieces 11b radially provided on the outer periphery and has a click protrusion 11a facing the back protrusion 10, and is engaged with the back protrusion 10 and the click protrusion 11a, respectively. Matching protrusions 12,1
An engagement piece 7a having upper and lower portions 3 and 3 is provided in a protruding manner on the setter 7. The ring-shaped spring member 11 has mounting bosses 11c provided at multiple locations in the circumferential direction.
It is installed by fitting into the mounting hole 21 of. Setter 7
In addition to the engagement piece 7a, the switch lever engagement claw 7b projects from the back surface of the dial body 6, and a cover protrusion 7c slides over the outer circumferential edge of the upper surface of the dial body 6. The outer periphery of the upper surface of the dial body 6 is colored in a different color from the other parts to indicate an on state. The colored portion 14 is colored by two-color molding or hot stamping, and for example, when other portions are black, it is colored red. As described later, the setter 7 can be molded into the dial body 6 in an assembled state, but it may also be molded separately and incorporated into the dial body 6.

Operation When the setter 7 is slid inward as shown in FIG. 4, it is turned on, and when it is slid outward as shown in FIG. 5, it is turned off. In the on state, as the dial main body 6 rotates, the switch lever engaging claw 7b of the setting element 7 kicks the switch lever, turning on the micro switch. If it is in the off state, pass without touching the switch lever.

In this way, the switch can be turned on and off by simply sliding the setting element 7 while it is inserted into the setting element hole 8, so unlike conventional settings where the setting element is attached and removed, there is no need to provide a housing for the setting element 7. It is possible to make the device smaller and more compact. Moreover, problems such as loss of the setter 7 or incorrect attachment of the setter 7 are eliminated. Also,
When switching between on state and off state, setter 7
The engaging piece 7a is connected to the back projection 10 of the dial body 6 and the click projection 11a of the ring-shaped spring member 11.
To overcome this, a clicking feel and clicking sound is obtained. Therefore, the on/off setting of the setter 7 can be confirmed intuitively, and the reliability of the operation of the setter 7 is improved. The click feeling and sound can be changed by changing the spring pressure of the ring-shaped spring member 11. Furthermore, due to the engagement between the back surface protrusion 10 and the click protrusion 11a and the engagement piece 7a of the setting element 7, the setting element 7 is stably held in the on state and the off state, causing the setting element 7 to slide inadvertently and malfunction. Never. In particular, in the ON state, the engagement between the setter 7 and the switch lever causes the setter 7 to
is prevented from being pushed and sliding. Third
In the figure, T ₁ indicates an on period and T ₂ indicates an off period; however, in the off state, the colored portion 14 of the dial body 6 is hidden by the setter 7, and this serves as a display to distinguish between on and off.

FIGS. 6A to 6C show an example of the manufacturing process. first,
A dial body 6 is molded using a lower mold 15 and an upper mold 16. (Figure 6A). 17 is a gate.

After that, using another upper mold 18, lower mold 19, and dial body 6, the setter hole 8 of the dial body 6 is
The setter 7 is molded in a state where it is incorporated into the setter (FIG. 6B). 20 is a gate. Next, the separately formed ring-shaped spring member 11 is assembled into the dial body 6 by press-fitting the mounting boss 11c or heat caulking (FIG. 6). In this way, since the setter 7 is molded in a state where it is assembled onto the dial body 6, the time required to assemble a large number of setters can be saved and the precision of the parts can be improved.

[Effect of idea]

The dial mechanism of this invented time switch is
Since the setter is guided and held on the edge of the setter hole by the switch lever engaging claw and cover protrusion of the setter, there is no need for a groove in the setter hole as in the past.
Therefore, since the dial body does not need to be composed of two parts, it is easy to assemble, and the setting element is easy to operate.Furthermore, there is no need to store unused setting elements, and there is no problem of losing the setting element. effective.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a conventional example, Fig. 2 is a sectional view thereof, and Fig. 3 is a partial plan view of an embodiment of the invention.
FIG. 4 is a sectional view showing the on state, FIG. 5 is a sectional view showing the off state, and FIGS. 6A to 6C are manufacturing process diagrams. 6... Dial body, 7... Setting element, 7a...
Engagement piece, 7b...Switch lever engagement claw, 7c...
... Cover protrusion, 7d ... Insertion part, 8 ... Setter hole, 10 ... Back projection, 11 ... Ring-shaped spring member, 14 ... Colored part.

Claims (1)

[Scope of utility model registration request] A dial body in which a plurality of slit-shaped setter holes extending in the radial direction are arranged in an annular manner and rotated at a constant cycle, and an insertion part inserted into the setter hole, and one end side of the insertion part a switch lever engaging claw provided on the other end of the insertion portion and guided on one side of the dial body; a setter that is provided on the side of the insertion portion and has an engagement piece that protrudes inward in the radial direction of the dial body and is movable in the radial direction; and a setter that is provided in the dial body and moves in the radial direction. and a spring member that engages with the engaging piece.