JPH0218506Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] This invention relates to a repeatable time switch.

[Background technology]

Conventionally, there are typical repeatable time switches shown in FIGS. 13 and 14. In other words, the dial body 71 rotates at a constant speed at a constant period.
The switch 73 is operated by a plurality of setters 72 attached to the outer periphery of the switch 73 to turn on/off the electrical equipment at a predetermined time. This is done by inserting and fixing the setter 72 into a plurality of setter holes 74 arranged in a row on the peripheral edge of the dial body 71.
The end of the switch 73 is configured to switch the switch 73. The setter holes 74 are provided, for example, at intervals of 15 minutes. The switch 73 is opened and closed each time each setter 72 operates the switch lever 73a with which it engages.

In this conventional device, the setter 72 is prepared separately from the dial body 71, and the setter 72 must be inserted and fixed into the setter hole 74 corresponding to the time when the switch 73 needs to be changed, so there is no need to change the switch. The setter 72 had to be removed from the setter hole 74. As a result, changing the mounting position of the setting element 72 in response to a change in the switch switching time is relatively complicated and easy to make mistakes, and the setting element 72 that is not in use is easily lost.
In addition, an unused setter 7 is added to the time switch main body 75.
It was necessary to provide two storage compartments.

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). With this device, the setting element operation is easy to understand, erroneous operation is less likely to occur, there is no problem of losing the setting element, the setting element can be easily operated, and the switch operation can be performed reliably.

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 that is easy to assemble.

[Disclosure of invention]

This invention is based on a time switch in which a setter provided on the outer periphery of a dial that rotates at a constant speed is engaged with a lever, and the lever opens and closes the switch contacts. A hole is provided, and a setter is attached to the setter hole so that it can move forward and backward in the radial direction of the dial. The setter is provided with a flange for preventing slippage on the display side and back surface of the dial, and a groove is formed in this flange to obtain an elastic effect. An engaging protrusion and an engaging recess are provided on the side edge of the flange in which the split groove is formed and on the surface of the dial, which engage releasably with each other to hold the setter at the inner or outer position. It is something that

Embodiment An embodiment of this invention is shown in FIGS. 1 to 6. In the figure, 1 is a disc-shaped dial,
It is driven to rotate around its center O at a constant speed. A setter hole 2 extending in the radial direction on the outer periphery of the dial 1
A large number (96 pieces, for example) are provided at a constant pitch, and a setter 3 is attached to each setter hole 2. On the outer periphery of the surface of the dial 1, an ON display section 4 whose color is different from that of other parts and the setting element 3 is provided. For example, when the dial 1 and the setting element 3 are white, the on display section 4 is red. The on display section 4 is provided by two-color molding, printing, or the like.
Further, on the outer peripheral edge of the back surface of the dial 1, engaging protrusions 5 are provided between each setter hole 2.

The setter 3 has a fitting part 3a that fits into the setter hole 2.
It has a pair of retaining flanges 3b and 3c that contact the front and back surfaces of the dial 1, respectively, a lock protrusion 3d that protrudes to the back side of the dial 1, and an operation protrusion 3e that protrudes to the front side. The fitting portion 3a is formed to be shorter than the setter hole 2 by the length for forward and backward movement. The flange portions 3a, 3c extend in the radial direction of the dial 1, and a groove 6 is formed in the center of the flange portion 3c on the back side in the width direction to provide elasticity in the width direction. Two engagement recesses 7 and 8 that engage with the engagement protrusion 5 of the dial 1 are provided on both side edges of the flange 3c in which the groove 6 is formed. The setter 3 is made of resin.

After the dial 1 is molded, the setter 3 is
It is used as a part of the mold for the dial 1 and molded into the setter hole 2. Depending on the shrinkage rate of the molding material, it is possible to mold the setter 3 so that it can slide into the setter hole 2.

In addition, below the dial 1 is the center P (Fig. 2).
A switch lever 9 that rotates in the periphery and a switch contact (not shown) that opens and closes as the switch lever 9 rotates are provided. The switch lever 9 is held at a predetermined angle by a spring and a stopper (not shown).

Operation As shown in FIG. 1, the setter 3 is turned on when it is slid toward the center of the dial 1, and turned off when it is slid outward. T ₁ indicates an on period, and T ₂ indicates an off period. In the on period _T1, the on display section 4 is exposed from below the setting element 3, so that it can be seen at a glance that the device is in the on state.
The setter 3 in the on state engages with the switch lever 9 as shown in FIG. 2A as the dial 1 rotates, causing the switch lever 9 to rotate. This rotation closes the switch contact. The setter 3 in the OFF state passes through without hitting the switch lever 9 as shown in FIG. 2B.

It works like this, but setter 3 is dialed 1.
Since it is permanently installed on the outer periphery of the switch, there is no risk of losing it, and it is easy to turn on/off and change settings. Therefore, erroneous operations are less likely to occur. Further, when the setter 3 is moved outward, the inner engagement recess 7 of the setter 3 engages with the engagement protrusion 5 of the dial 1, and when the setter 3 is moved inward, the setter 3 The engagement recess 8 engages the engagement protrusion 5 outwardly. Therefore, the setting element 3 does not slide carelessly, and the operation is reliable. Also, when the setting element 3 is slid, a click feeling and sound can be obtained, so that the setting can be performed reliably. Furthermore, if the setter 3 is molded separately from the dial 1 and installed one by one in the setter hole 2, it will take a lot of time to assemble. 1 are integrally molded, eliminating the need for assembly time. Moreover, by integral molding, the setter 3
The accuracy of the dial 1 can be made uniform, and material loss can be reduced.

In the above embodiment, when the setter 3 is moved inward, it is engaged with the switch lever 9, but the switch lever 9 may be provided so that it is engaged when it is moved outward. .

FIGS. 7 and 8 show a second embodiment. In this example, a pair of engagement protrusions 10 and 11 are provided on both side edges of the flange 3c of the setter ₃₂ , with the engagement recesses formed between them. When the setter 3 ₂ is moved outward, the engagement protrusion 5 of the dial 1 engages between the engagement protrusions 10 and 11 of the setter 3 ₂ , and the setter 3 ₂ is moved inward. When the dial 1 is turned, the engagement protrusion 5 of the dial 1 engages with the outer edge of the outer engagement protrusion 11 of the setter 3 ₂ . The other configurations are similar to the first embodiment.

9 and 10 show a third embodiment.
In this example, the flange 3 of the setter 3 ₂ of the embodiment shown in FIG.
An engaging recess 12 is further added to the inner surface of the dial 1, and a low engaging protrusion 13 that engages with the engaging recess 12 is provided between the engaging protrusions 5 of the dial 1. With this configuration, the same effect as in the embodiment shown in FIG. ₇ can be obtained by bending the flange 3c of the setter 32 in the width direction, and also by bending the flange 3c in the vertical direction. Inward engaging recess 12 of flange 3c and dial 1
The engagement with the engagement protrusion 13 is obtained. Therefore,
The effect of keeping the setter ₃₃ in the on state is even more reliable.

11 and 12 show a fourth embodiment. In this example, an engaging protrusion 14 is further added to the inner surface of the flange 3C of the setter ₃₂ of the embodiment shown in FIG. They are arranged in concentric circles. Even in the case of this configuration, engagement and disengagement are performed in both directions by the deflection in the width direction and the deflection in the vertical direction of the collar portion 3c,
The effect of holding the setter ₃₄ in position can be reliably obtained.

[Effect of idea]

The time switch of this invention has a flange that guides and holds the setter on the edge of the setter hole, so there is no need for a groove in the setter hole as in the past, and the dial is made of two parts. It is easy to assemble because there is no need to configure it, and the setting element operation is easy to understand, making it difficult to operate incorrectly, and there is no problem of losing the setting element.Furthermore, the setting element can be easily operated, and the switch operation is reliable. .

[Brief explanation of the drawing]

FIG. 1 is a partial plan view of an embodiment of this invention, FIGS. 2A and B are explanatory diagrams of its operation, FIG. 3 is a partial bottom view thereof, and FIG. 4 is a partial perspective view thereof.
Figure 5 is a partial perspective view of the dial, and Figure 6 is a partial perspective view of the dial.
7 is a partial perspective view of the second embodiment, FIG. 8 is a perspective view of the setter, FIG. 9 is a perspective view of the third embodiment, and FIG. 11 is a partial perspective view of the fourth embodiment, FIG. 12 is a perspective view of the setting device, FIG. 13 is a plan view of the conventional example, and FIG. 14 is a cross-sectional view of the setting device. It is a front view. 1...Dial, 2...Setter hole, 3,3 ₂ ~
3 ₄ ...Setter, 4...Display section, 5...Engagement protrusion,
6... Division groove, 7, 8... Engagement recess, 9... Switch lever, 10, 11... Engagement protrusion, 12... Engagement recess, 13... Engagement protrusion, 14... Engagement joint protrusion,
15, 16...Engagement groove.

Claims (1)

[Claims for Utility Model Registration] (1) A disc-shaped dial, a mechanism for rotating the dial at a constant speed, and a plurality of disc-shaped dials extending in the radial direction at a constant circumferential pitch on the outer periphery of the dial. a setter hole, and a pair of flanges that are attached to each of these setter holes so as to be movable in the radial direction and extend in a long direction outward in the radial direction of the dial in contact with a display side surface and a back surface of the dial, respectively; and a split groove provided along the radial direction at the center in the width direction of the flange of the setting element, an engagement recess provided on the side edge of the flange provided with the split groove, and an engaging recess provided in the dial. an engagement protrusion that is provided to detachably engage the engagement recess and hold the setter at a radially outer position or an inner position of the dial; A time switch comprising a switch lever driven by the setter as the dial rotates at any of the moving positions, and a switch contact opened and closed by the switch lever. (2) The flange has an engaging protrusion or an engaging recess on a surface that contacts the surface of the dial, and the dial removably engages with the engaging protrusion or the engaging recess to perform the setting. 2. The time switch according to claim 1, which has an engaging recess or an engaging protrusion for holding the child at the outer position or the inner position.