JPH0119791Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field] The present invention is based on a system in which a plurality of setters are superimposed on the central cylindrical part of a dial that rotates at a constant period and are movable in the circumferential direction and radial direction of the dial. By arranging the switch in a fixed position, only the setter in the timer operating position turns the switch on and off at the set time.
The setter moved to the timer release position relates to a timer setter structure that can prevent the switch from turning on and off.

[Background technology]

As a setter structure for this type of timer, the applicant of the present application has provided a flexible portion C protruding outward from an annular portion B forming an elongated fitting hole A, as shown in the first diagram. A feed pawl D that advances the feed cam that turns the switch on and off, a locking pawl E, and an operating portion F.
A plurality of setters G arranged in series are arranged in a superimposed manner in the central cylindrical part of a dial that rotates at a constant period so as to be movable in the circumferential direction and radial direction of the dial. proposed.

A timer with such a setter structure prevents the setter from falling off or getting lost in applications where the number of on/off operations per dial rotation (for example, 24 hours) is relatively small, and there are two sets of on and off setters. If it is provided, it is possible to select on/off operation twice or once per rotation of the dial, making it extremely convenient to use.

However, in this method, the amount of displacement of the dial of the setting element in the radial direction during the selection operation is minute, so the user has a drawback that it is difficult to tell whether the operation has been performed reliably or not, making the user feel uneasy.

[Purpose of invention]

The present invention has been developed in view of the above points, and the purpose of the present invention is to:
The purpose of the present invention is to provide a timer setter structure that allows a user to recognize that the operation has been reliably performed.

[Disclosure of invention]

(Example) An example of the present invention will be described below based on the drawings.

Figure 2 shows a timer equipped with the proposed setter structure, in which 1 is a rotating dial at a fixed period (for example, 24 hours), 2 is a feed cam that turns on and off the switch,
3, 4, 5, and 6 are setters that drive the feed cam 2 step by step.

The dial 1 has a through hole 1 in the center as shown in Figure 3.
A disc-shaped base 1b and a central cylindrical part 1c projecting downward from the disc-shaped base 1b are integrally formed. Further, a scale plate recess 1d is provided on the surface of the disc-shaped base 1b, and a scale plate 8 having scales and time numerals arranged in the circumferential direction for setting the timer operation time is pasted thereon. On the other hand, a scale plate 8 is provided on the back surface of the disc-shaped base 1b.
An annular locking part 1 having a serrated cross section corresponding to the scale of
e (for example, 96 pieces) are formed on the outer periphery near the outer end of the dial 1, and further on the inner periphery, a circumferential groove 1g is formed with a circumferential partition wall 1f interposed therebetween. This peripheral wall 1
f has such a cross-sectional shape that the annular locking portion 1e side rises at right angles to the disc-shaped base 1b, and the circumferential groove 1g rises gently.

The feed cam 2 is located outside the rotation locus of a setting element, which will be described later, and has an off-cam part 2a and an on-cam part 2b, each of which has a circumference divided into four parts, stacked on top of each other with a predetermined angle shift. (not shown) are integrally formed and rotatably arranged. A plurality of switch springs supported in a cantilever manner are housed in the switch chamber 9, and the tips of the springs are turned on and off by following the switch operating cam, but since this structure is well known, a detailed explanation will be omitted.

For setters 3, 4, 5, and 6, 3 and 4 are for off, 5,
6 is for ON and is attached to the dial 1 in such a manner that it cannot be attached or detached and can be set to any desired timer operation time. These setters have substantially similar shapes. For example, as shown in FIG. A feed pawl 5d, which advances the feed cam 2 that turns on and off the switch from the bending portion 5c, a locking pawl 5e, and an operating portion 5f are integrally connected to each other. . The feed pawl 5d engages with the on-cam portion 2b of the feed cam 2 when the dial 1 rotates, but the feed pawl 6d of another ON setting element 6 similarly engages with the on-cam portion 2b, thereby setting the OFF setting. Feeding claw 3 of children 3 and 4
d and 4d engage with the off-cam portion 2a. Locking claw 5
The reference numeral e is for locking in the annular locking portion 1e or the circumferential groove 1g, and its outer shape has an inclined surface corresponding to the gradual rise of the circumferential partition wall 1f. Other setters 3, 4,
The locking claws 3e, 4e, and 6e of No. 6 also have a similar shape. The operation part 5f has a U-shape that grips the outer peripheral end of the dial 1 together with a base protruding from a locking claw 5e, and has an instruction mark 5g and an "ON" mark on its outer surface indicating that it is an ON setting element. Letters are applied. Operation parts 3f, 4f of other setters 3, 4, 6,
6f is the same except that the character "off" is added to indicate that it is an off setter.

The setters 3, 4, 5, and 6 are attached to the respective annular portions 3.
b, 4b, 5b, and 6b are rotatably arranged around the outer periphery of the central cylindrical portion 1c of the dial 1 in a superimposed manner as shown in FIG.
The locking claw, the operating part is the feed cam 2, and the dial 1.
Each annular portion 3 seen from the side requires a positional relationship that engages, locks, or grips at a predetermined location.
The vertical positions of b, 4b, 5b, and 6b are sequentially shifted from each other.

Furthermore, to explain the shape of the fitting hole of each setter, each setter has the same shape, and the diameter is larger in the line direction connecting the center of the fitting hole 5a and the center of the flexible portion 5c. It has a long hole shape. That is, the central cylindrical portion 1c of the dial 1
The centers O1, O that draw a semicircle with a radius equal to the radius r of
2 are located a predetermined distance L apart, and this center O
1, O2 is in the shape of a long hole including a semicircle.

This predetermined distance L is the amount of displacement of each setter in the radial direction of the dial 1 when each setter is attached to the dial 1, and each feed pawl normally drives the feed cam 2 step by step. The setting is made so that the amount of displacement from the position where the feed cam 2 cannot be driven in steps (timer operation position) to the position where the feed cam 2 cannot be driven step by step (timer operation release position) can be secured. Therefore, each setter can move forward or backward by a predetermined distance L in the direction in which the flexible portion is protruded.

Furthermore, the elongated fitting hole has a shape in which a small protrusion 5i projecting into the fitting hole 5a is formed on its long side 5h. This small protrusion 5i elastically holds the outer periphery of the central cylindrical portion 1c of the dial 1 together with any semicircle drawn with a radius r. Therefore, when each setter is moved in the radial direction of the dial 1, the outer periphery of the central cylindrical portion 1c pushes the small protrusions 5i outward, creating a resistance force against the movement and providing a click feeling. In addition, in order to adjust this resistance force, a through hole 5j may be provided in the vicinity of the small protrusion 5i of the annular portion 5b. Moreover, the small protrusion 5i may be provided only on one of the long sides 5h.

As is clear from the above configuration, the radial dimensions of the annular locking portion 1e and the circumferential groove 1g of the dial 1 are determined according to the predetermined distance L, and each of the feed claws 3c, 4c, 5
When c and 6c are in the position where the feed cam 2 is driven in steps, the respective locking claws 3d, 4d, 5d and 6d are locked in the annular locking portion 1e, and the feed cam 2 is in a position where it cannot be driven in steps. When each locking claw 3d, 4d, 5
d and 6d are located within the circumferential groove 1g.

Then dial each setter 3, 4, 5, 6 to 1.
The holding plate 10 is fitted onto the outer periphery of the central cylindrical portion 1c one after another, and is fixed to the end surface of the central cylindrical portion 1c with screws 11. Therefore, each setter is disposed on the dial 1 so as to be rotatable and displaceable in the radial direction of the dial 1 in an overlapping manner.

Reference numeral 12 denotes a dial bush which fixes the dial 1 and the dial gear 13, loosely fits into the dial shaft 15 erected on the base plate 14, and further secures the dial shaft 15
The washers 16 are also fixed with screws 17 to prevent them from falling off. The dial gear 13 is connected to the motor via a reduction gear train including a clutch mechanism. 18 is a dial cap that hides the screw 17.

19 is a switching shaft for manually turning the switch on and off, and a gear 19a provided in the middle of this shaft
meshes with the manual gear 2c of the feed cam 2.

Reference numeral 20 indicates an upper case, and 21 indicates a lower case, in which the motor, switch, reduction gear train, load connection receiving blade 22, power supply plug 23, and other components necessary for the timer are housed. The dial 1 equipped with the setter is loosely fitted onto the dial shaft 15 protruding from the upper case 20, but is protected by a cylindrical outer wall 24 formed on the upper surface of the upper case 20, and is covered with a transparent cover 25. covered for further protection. Further, a current time indicating mark 26 is provided on the surface of the upper case 20 close to the dial 1, and a hole 27 for inserting a load plug is provided at a position corresponding to the receiving blade 22 for connecting the load.

〔motion〕

Setting of the timer operation time in such a timer will be explained. In Figure 2, setters 3 and 6
is at the timer operation position, and setters 4 and 5 are at the timer operation release position, so at 3 p.m., the switch is turned on by setter 6, and at 6 p.m., the switch is turned off by setter 3, and setter 4 is turned on. , 5 does not turn the switch on or off. Then another 6am
If you want to turn on the switch at midnight and turn it off at 12:00 a.m., press down the operating parts 5f and 4f of the setters 5 and 4, which are in the timer release position, and then pull them out in the radial direction of the dial 1 to set the scale on the scale plate 8. All you have to do is make it correspond to . With this operation, the circumferential groove 1
The locking claws 5e, 4e located within the bending portions 5c,
4c bends, climbs over the peripheral wall 1f, and is locked by the annular locking portion 1e, completing the setting. Also, if you want to prevent the switch from turning on and off at 3:00 p.m. and 6:00 p.m., press down the operating parts 3f and 6f of the setters 3 and 6 located in the timer operating position, and then push the dial 1 inward in the radial direction. Just push it into. By this operation, the locking claws 3e, 6e that were locked on the annular locking portion 1e are removed from the flexible portions 3c, 6.
c bends and climbs over the peripheral wall 1f to form the peripheral groove 1.
Since it is located within g, the setting is canceled.

In this way, when moving each setter in the radial direction of the dial 1, the outer periphery of the central cylindrical portion 1c pushes outward the small protrusions 3i, 4i, 5i, and 6i formed in the fitting hole. Resistance to movement is generated and a clicking sensation is obtained, which allows the user to perceive that the operation has been performed reliably.

In this embodiment, two sets of ON and OFF setters are provided, but the present invention is not limited to this. Alternatively, the feed cam may be located inside the rotation locus of the setting element. In this case, the circumferential groove of the dial is provided on the outer periphery near the outer end, and an annular locking portion is provided on the inner periphery to set the setting element. When the child is pulled out in the radial direction of the dial, the setting child is unable to drive the feed cam step by step, and the timer setting is canceled. Furthermore, since the main point of this invention is the configuration of the dial, feed cam, and setter,
Other members can be changed as appropriate.

〔effect〕

As described above, the present invention has a fitting hole of a setter that is a long hole through which the setter can move forward and backward in the protruding direction of the flexible part, and a small hole that projects into the hole on at least one long side of the long hole. The shape has protrusions, so when selecting the timer operating position or canceling the timer operation by moving each setter forward or backward in the radial direction of the dial, you will get a reliable click feeling and the operation will be reliable. A timer setter structure can be provided that allows the user to perceive what has been done.

[Brief explanation of the drawing]

Figures 1a and b show a conventional setter, in which a is a plan view and b is a side view, and Figures 2a and b are a timer with a setter structure according to an embodiment of the present invention. a is a plan view, b is a vertical sectional view, Figure 3 a, b, and c show the dial; a is a sectional view, b is a plan view, c is an A-A sectional view at b, Figure 4 a ,b
5 shows the setter, a is a plan view, b is a side view, and FIG. 5 is a side view including a partial cross section showing the main parts thereof. 1...Dial, 2...Feed cam, 3, 4,
5, 6... setter, 3a, 4a, 5a, 6a...
Fitting hole, 3b, 4b, 5b, 6b... annular portion, 3
i, 4i, 5i, 6i... small protrusions.

Claims (1)

[Scope of utility model registration request] a feeding pawl that has a flexible portion protruding outward from the annular portion that forms the fitting hole, and that drives a feeding cam that turns on and off the switch step by step from the flexible portion; and a locking pawl;
A plurality of setters connected to the operating section are arranged in a superimposed manner in a central cylindrical portion of a dial that rotates at a constant cycle in such a manner that they can move in the circumferential direction and radial direction of the dial. In the timer setter structure,
The fitting hole is an elongated hole through which the setter can move forward and backward in the protruding direction of the flexible portion, and a small protrusion that protrudes into the hole is formed on at least one long side of the elongated hole. A timer setter structure characterized by: