JPH0142908Y2 - - Google Patents

Description

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

[Background technology]

Conventionally, there are typical repeat time switches shown in FIGS. 1 and 2. That is,
It consists of a plurality of setters 2 attached to the outer periphery of a dial main body 1 that rotates at a constant speed in a constant cycle to operate a switch 3 to control on/off of electrical equipment at a predetermined time. This is done by inserting and fixing the setting element 2 into a plurality of setting hole holes 4 arranged in a row on the peripheral edge of the dial body 1, so that the end of the setting element 2 is connected to the switch 3.
It consists of a configuration that switches between The setter holes 2 are provided, for example, at intervals of 15 minutes. 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.
The setter 2 must be inserted and fixed into the setter hole 4 that corresponds to the time when the switch 3 needs to be changed, and the setter 2 must be removed from the setter hole 4 that does not require switching. I had to. As a result, changing the mounting position of the setting element 2 in response to 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. In addition, the time switch body 5
It was necessary to provide a storage section for the unused setter 2.

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, the disadvantage is that it is difficult to distinguish between on and off operations at each time when switching a complex program, and in the latter, 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 quantities (96 per unit at 15-minute intervals), managing the parts is difficult.

Therefore, we proposed a system in which a setting element is swingably attached to the dial body, and the on/off switching is performed by raising and lowering the setting element (Japanese Patent Application No. 58-31403). According to this, the setting is easy and problems such as loss of the setter can be solved. However, it was difficult to confirm the raised/lowered state of the setter, and the reliability of the setter operation was insufficient.

On the other hand, there were some models that provided a click protrusion on the setter to make it easier to confirm whether the setter was up or down (for example, Japanese Patent Application Laid-open No. 149735/1983), but in order to hold the setter on the dial body, The drawback was that assembly work was required.

[Purpose of invention]

The purpose of this invention is to provide a dial mechanism for a time switch that can eliminate the need for assembling a setter.

[Disclosure of invention]

The dial mechanism of this invented time switch is
a plurality of setter holes arranged on a circumference, a bearing recess formed on one side between the plurality of setter holes and having an axial direction in the circumferential direction of the circumference; The other side between the setter holes has an arcuate surface formed with the bearing recess as the center of curvature, and further formed in the circumferential direction of the concave curved surface formed in the setter hole with the bearing recess as the center of curvature. a dial body having a pair of fitting recesses for clicks, which are integrally molded; and an insertion part inserted into the setter hole; The switch has a shaft portion supported by the bearing recess, and a switch drive portion provided adjacent to the shaft portion and capable of protruding from the setter hole by rotation of the insertion portion, the other end side of the insertion portion. an operating piece that is provided on the insertion portion and comes into sliding contact with the arcuate surface; an elastic piece that protrudes from the middle part of the insertion portion and has a side surface that makes elastic contact with the curved surface; By fitting into one of the fitting recesses, the switch driving section is positioned in a position protruding from the setting hole, and by fitting into the other fitting recess, the switch driving section is positioned in a position protruding from the setting hole. The dial body has a click protrusion for positioning the setter at a position housed in the dial body, and a setter which is integrally molded into the setter hole of the dial body.

According to the configuration of this invention, since the setter is molded into the setter hole of the dial body, the dial body can be molded as part of the mold with the setter incorporated in the setter hole. . This eliminates the need for assembling the setter. Moreover, since the variation in the gap between the setter and the setter hole is minimized due to molding, the setter can be rotated smoothly.
Further, since the click protrusion fits into the pair of fitting recesses, a click feeling is obtained, so that it is possible to confirm the raised/lowered state of the setter.

Embodiment An embodiment of the present invention is shown in FIGS. 3 to 11. This dial mechanism consists of a dial body 6 and a plurality of (for example, 96) setting elements 7. The dial body 6 is made of hard plastic.
A plurality of slit-shaped setter holes 8 that are formed in a disk shape and extend in the radial direction through the front and back surfaces.
are arranged in a ring near the outer periphery. The setter hole 8 has a downward semicircular concave curved surface 8a, and has a cylindrical bearing recess 9 (FIG. 6) at the center of the arc. A pair of fitting recesses 10 and 11 are provided on the outer peripheral surface of the dial main body of the setter hole 8 at an upper portion and a lower portion. The upper surface of the dial body 6 has an arcuate surface 12b with the bearing recess 9 as the center of curvature, and a stopper protrusion 12 is formed adjacent to the inner circumferential side of the portion where the setter hole 8 is provided. There is. The stopper protrusion 12 has an inclined stopper surface 12a. A different color part 1 is located on the outer periphery of the upper surface of the dial body 6.
3 is formed in a ring shape. The different color portion 13 is provided by two-color molding, for example, in red. The other parts of the dial body 6 are made of black resin or the like. Note that the different color portions 13 may be provided by hot stamping or the like.

Although some of the setters 7 are omitted in FIGS. 5 and 8, they are provided in all of the setter holes 8. The setter 7 is made of thermoplastic plastic and has a semicircular plate shape with an insertion portion 7a that fits into the setter hole 8. The setter 7 has shaft portions 14 on both sides thereof that fit into the bearing recesses 9 of the setter hole 8, and is rotatable around the shaft portions 14. The setter 7 protrudes upward from the setter hole 8 and touches the arcuate surface 1.
2b and the stopper surface 12a.
It has a stopper piece 16 that engages with the stopper piece 16. Further, the setter 7 is provided with a recessed portion on the outer periphery of the dial body 6 than the shaft portion 14, thereby forming an arc-shaped elastic piece 17 protruding from the intermediate portion of the insertion portion 7a. . The outer peripheral surface of the elastic piece 17 has fitting recesses 10 and 11 for the setter hole 8 when the setter 7 is in the upright state.
A pair of click protrusions 18 and 19 are provided which fit into each other. With the setter 7 tilted down until the stopper piece 16 engages with the stopper surface 12a, the lower click protrusion 19 fits into the upper fitting recess 10. Note that the upper click protrusion 18 does not necessarily need to be provided. Further, a switch driving portion 7b is provided adjacently to the opposite side of the elastic piece 14 of the shaft portion 14 of the setting element 7, and positioned so that the click protrusion 19 projects from the setting element hole 8 when it is fitted into the fitting recess 10. ing.

Note that this dial mechanism is installed, for example, above a rotating member (not shown) that rotates at a certain period of time, and a switch lever 20 attached to this rotating member
(FIG. 4) hits the setter 7 to turn on the switch.

Operation Figures 4 to 6 show the off state. At this time, the setter 7 is completely raised and its lower end does not protrude from the setter hole 8.

7 to 9 show the on state. At this time, the setter 7 has a stopper piece 16 that is connected to the stopper surface 12.
It lies diagonally in contact with point a, and its lower end protrudes from the setter hole 8. Therefore, the switch lever 20 engages with the setter 7 as the rotating member to which it is attached rotates, and the switch is turned on.

In this way, by raising and lowering the setter 7, the time can be easily set. Since the setting element 7 is not attached or removed from the dial body 6, unlike the conventional setting element 7, which is detachable, there is no need to provide a storage section for the unused setting element 7, and the setting element 7 can be made smaller and more compact, preventing loss of the setting element 7. There are no problems such as incorrect installation.

When the setter 7 is erected, both click protrusions 18 and 19 are in both fitting recesses 1 of the dial body 6.
0 and 11, and when the setter 7 is pushed down, the lower click protrusion 19 comes out of the lower fitting recess 11 and enters the upper fitting recess 10. Therefore, a click sensation can be obtained when raising and lowering the setting element 7, and the setting element 7
The reliability of operation is improved. Note that the elastic piece 17 on which the click protrusions 18 and 19 of the setter 7 are formed is provided outward from the shaft part 14, and the switch drive part 7b that engages with the switch lever 20 and the elastic piece 17 are separate. For example, unlike the case where the elastic piece 17 is formed inside and the switch lever 20 is engaged with this, there is no problem that the operation of the switch lever 20 becomes uncertain due to the deflection of the elastic piece 17.

In addition, when the setter 7 is raised, the operation piece 1
5, the different color portion 13 is hidden, and when the setter 7 is pushed down, the different color portion 13 is exposed. Therefore, on/off settings can be displayed by color.

To explain the manufacturing method, the setter 7 is formed so as to be incorporated into the dial body 6. That is, after the dial body 6 is molded, the dial body 6 is used as a part of a mold to mold the setter 7 into the state shown in FIG. 4. In this way, setter 7
can be molded in a state where it is incorporated into the dial main body 6, so there is no need to assemble the setter 7, and production can be performed with high efficiency. Further, the variation in the gap between the setter 7 and the setter hole 8 is minimized,
Smooth rotation of the setter 7 can be obtained.

In addition, although the setter 7 and the setter hole 8 were semicircular in the above embodiment, they do not necessarily have to be semicircular. In that case, the circumferential surface of the setter 7 and the setter hole 8
A gap for rotation of the setting element 7 is provided between the inner surface of the setting element 7 and the inner surface of the setting element 7.

[Effect of idea]

The dial mechanism of this invented time switch is
Since the setter is molded into the setter hole of the dial body, the dial body can be used as part of the mold.
The setter can be molded in a state that it is incorporated into the setter hole. This eliminates the need for assembling the setter. Moreover, since the variation in the gap between the setter and the setter hole is minimized due to molding, the setter can be rotated smoothly. Furthermore, since the click protrusion fits into the pair of fitting recesses, a click feeling can be obtained, which has the effect of confirming the raised/lowered state of the setter.

[Brief explanation of drawings]

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.
4 to 6 are a partial sectional view, a partial perspective view, and a partial perspective view shown upside down, respectively, in the OFF state, and FIGS. 7 to 9 are a partial sectional view, a partial perspective view, respectively, in the ON state. FIG. 10 is a perspective view of the setter, and FIG. 11 is a rear view of the setter. 6... Dial body, 7... Setting element, 7a...
Insertion part, 7b... Switch drive part, 8... Setter hole, 8a... Concave curved surface, 9... Bearing recess, 10, 1
DESCRIPTION OF SYMBOLS 1... Fitting recessed part, 12b... Arc surface, 13... Different color part, 14... Shaft part, 17... Elastic piece, 18,1
9...Click protrusion.

Claims (1)

[Claims for Utility Model Registration] A bearing recess that has a plurality of setter holes arranged on a circumference, is formed on one side between the plurality of setter holes, and has an axial direction in the circumferential direction of the circumference. and has an arcuate surface formed with the bearing recess as the center of curvature on the other side between the plurality of setter holes, and further formed in the setter hole with the bearing recess as the center of curvature. It has a pair of fitting recesses for clicks formed in the circumferential direction of a concave curved surface, and has a dial body formed by integrally molding these recesses, and an insertion part inserted into the setter hole, and has a It has a shaft part provided on one end side and pivotally supported in the bearing recess, and a switch drive part provided adjacent to the shaft part and capable of protruding from the setter hole by rotation of the insertion part, an operating piece provided at the other end of the insertion part to slide on the arcuate surface; an elastic piece protruding from the middle part of the insertion part whose side surface elastically contacts the concave curved surface; By fitting into one of the fitting recesses formed on the side surface of the piece, the switch driving part is positioned at a position protruding from the setter hole, and by fitting into the other fitting recess, the switch driving part is positioned at a position protruding from the setter hole. A dial mechanism for a time switch, comprising a click protrusion for positioning a switch driving part in a position accommodated in the setter hole, and a setter which is integrally molded into the setter hole of the dial body.