JPS6042437Y2 - Setting mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a settling mechanism, particularly to a setting mechanism for a timer equipped with a knob for setting a time limit.

Conventionally, in this type of settling mechanism, there is a method for simply locking a time-limited settling knob to a fixed settling time, and a means for temporarily changing the knob locked to a fixed settling time to another settling time and then locking the knob again. means for locking to the original settling time;
There has been a need for a means to arbitrarily limit the rotation range of the knob, that is, the settling time range.

The object of the present invention is to provide a settling mechanism that combines the advantages of the above three means.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings, which are examples of the present invention.

In Figures 1 and 2, 1 is the case, 2 is the knob, and 5
1 is a lock pin, 9 is a stopper, and the case 1 includes a well-known timer mechanism driven by a motor, for example.

The knob 2 is used to set the time limit of the timer mechanism, and is equipped with a setting pointer 3 (see Figure 3), and has an annular groove 4 on the periphery.
is formed and is rotatably installed on the front face portion 1a of the case 1.

The lock pin 5 consists of a base 6 that can be press-fitted into any part of the groove 4 of the knob 2, and a retaining piece 7 that can be elastically deformed in the direction of arrow A. An edge portion 6a that can be engaged with the uneven strip 4a is formed.

Further, the engaging piece 7 is formed with an engaging protrusion 8 that can be held in the recess 11 of the stopper 9.

The stopper 9 has a protrusion 10 provided on the front surface 1a of the case 1.
10, a concave part 11, and a knob 2 of the convex part 10.10.
Slanted guide surfaces 10a, 10a are formed on the side faces facing the.

On the other hand, on the front part 1a of the case 1, there is a time scale 12.
The time scale 12 is provided at a position corresponding to the groove 4 of the knob 2 and is visible from the transparent knob 2.

Next, a method of operating this settling mechanism will be explained.

First, in order to lock the knob 2 to a certain settling time, rotate the knob 2 to align the setting pointer 3 to a predetermined time scale 12, and then tighten the base 6 of the lock pin 5 as shown in FIG. By press-fitting the lock pin 5 into the groove 4 corresponding to the stopper 9, the engagement protrusion 8 of the lock pin 5 is pressed into the groove 4 corresponding to the stopper 9.
The knob 2 is engaged with the recess 11 of the knob 2, and the knob 2 is locked without being prevented from rotating in the left-right direction.

At this time, the edge portion 6a of the base portion 6 of the lock pin 5 engages with the concavo-convex strip 4a of the groove portion 4, thereby reliably preventing the lock pin 5 from moving in the left and right circumferential direction within the waist high portion 4.

Further, there is a slight clearance between the engagement piece 7 of the lock pin 5 and the outer peripheral surface of the knob 2, and when the engagement piece 7 is forcibly bent inward, the engagement protrusion 8 moves away from the recess 11. If the knob 2 is turned left and right in this state, it can be set to another time period (see Fig. 4).

In this way, to lock the original settling time again after temporarily changing to another settling time, turn knob 2 to the fourth setting, for example.
Just rotate it to the left from the position shown in the figure.

That is, the engagement protrusion 8 of the lock pin 5 slides on the guide surface 10a of the convex part 10 and is bent inward (see FIG. 5A),
It engages with the recess 11 again (see FIG. 5B).

In order to limit the settling time range, two lock pins 5, 5 may be press-fitted into predetermined positions in the groove 4 of the knob 2, as shown in FIG.

In addition, the lock pin 5 can be easily removed from the knob 2 by pulling it forward, and the lock position and settling time limit range can be changed arbitrarily, and when the lock pin 5 is removed, it functions as a normal settling mechanism. Of course you can.

Note that the settling mechanism according to the present invention is not limited to the above-mentioned embodiments, and can be variously modified within the scope of the gist.

In particular, the lock pin 5 only needs to be detachable at any position around the knob 2, and various means for attaching and detaching it are conceivable.

Further, the guide surfaces 10a, 10a of the stopper 9 may be arcuate surfaces instead of inclined surfaces.

As is clear from the above description, the present invention allows the lock pin to be attached and detached to any position around the time-setting knob, and the elastic engagement portion provided on the lock pin is retained in the concave portion of the stopper. This makes it possible to easily lock the knob to a fixed settling time, as well as to temporarily change the knob that was locked to a fixed settling time to another settling time and then rotate the knob to reset it again. By fixing one or two lock pins to the knob, the settling time range can be arbitrarily limited.

[Brief explanation of the drawing]

1 and 2 are perspective views of the settling mechanism according to the present invention, and 3.
6 through 6 are front views illustrating how the settling mechanism is used. 1...Case, 1a...Front part, 2.
...Knob, 4...Groove, 5...
Tatsuku pin, 6... Base, 7... Engaging piece, 8... Engaging protrusion, 9... Stopper, 10...・Protrusion, 10a...Guide surface,
11... Concavity.

Claims (2)

[Scope of utility model registration request] (1) A stopper with a concave and convex portion provided on the front surface of the case, a time-limited setting knob rotatably provided on the front surface of the case, and a retaining portion having elasticity that can be engaged with the concave portion of the stopper. and a lock pin that can be attached or removed at any position around the knob, and the engaging part of the lock pin can be held in the recess of the stopper from the front side of the case, and is fixed to the knob. A settling mechanism characterized in that a retaining portion of a lock pin can be elastically engaged with a recessed portion of the stopper by rotation of a knob. (2) The setting device according to claim 1, wherein the convex portion of the stopper is provided with a guide surface on which the engaging portion of the lock pin can slide.