JPH089669Y2 - Fixed structure of decorative pendulum - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a fixing structure for a decorative pendulum.

(Prior Art) In recent years, a decorative pendulum for decoration (hereinafter, also referred to as "decorative pendulum") in a high-precision quartz watch using a crystal oscillator
May be provided.

The above-mentioned decorative pendulum has a relatively large outer shape with respect to the timepiece mechanism portion, and it requires some ingenuity and labor for storage or packaging during transportation. In order to solve the problem of packaging, etc., as shown in JP-B-61-36947 and JP-B-61-36949, there is a technique for fixing a decorative pendulum during transportation using elastic deformation. It is disclosed.

On the other hand, conventionally, a means of tightly fixing the decorative pendulum with a pressing elastic material such as a pressing metal fitting, rubber, sponge or Styrofoam at the time of packaging is also adopted.

(Problems to be Solved by the Invention) The means described in the above publication is generally applied to a large decorative pendulum, and a relatively large fixing mechanism is required to fix the large decorative pendulum, resulting in a large number of parts. Inevitably, the fixing space also becomes large, and the appearance of the decorative timepiece in which the entire pendulum is exposed is impaired.

Also, as a means for restraining and fixing with a fixed elastic material such as sponge and rubber, a fixed elastic material must be prepared separately,
Therefore, there is a drawback that the number of parts is increased and the number of assembling steps is increased.

Furthermore, the above-mentioned conventional fixing means cannot always obtain a reliable fixing action, and there is a problem that the decorative pendulum is often unfixed during transportation or the like, which causes damage or failure of the timepiece. There is a problem that the fixing and releasing operations are complicated.

The present invention has been made for the purpose of providing a fixing device for a decorative pendulum that solves the above problems.

(Means for Solving the Problems) That is, the present invention is a structure for fixing a decorative pendulum swingably mounted on a watch case, the structure being on the back side of the decorative pendulum and separated from the swing axis center point. While the protruding shaft is formed at the position, a receiving piece having a one-side opening hole for introducing the protruding shaft is provided at a position closer to one side of the watch case and on the extension of the swing locus of the protruding shaft. The one side opening hole is configured by rotatably fitting a knob having a notch hole formed in a side wall, and the knob includes a body portion and a head portion provided on one side of the body portion,
When the body portion is fitted in the one side opening hole, and further the projecting shaft is introduced into the notch hole and the knob is rotated, the projecting shaft receives the receiving piece on the outer periphery of the one side opening hole. And a fixing structure of a decorative pendulum which is held by being surrounded by the cut holes.

(Operation) When swinging the decorative pendulum, the protruding shaft formed on the back surface of the decorative pendulum is removed from the one-side opening hole of the receiving piece so that the protruding shaft does not collide with the receiving piece. Swing the decorative pendulum. Then, when the timepiece is stored or transported, the decorative pendulum is rotated more than the normal swing range to introduce the protruding shaft into the one-side opening hole of the receiving piece. At this time, the one-side opening hole of the receiving piece and the notch hole of the knob are matched, and the protruding shaft is in a state of being introduced into the one-side opening hole and the notch hole. Therefore, the knob is rotated to take the outer periphery of the protruding shaft into the closed space formed by the one-side opening hole and the cut hole, and the protruding shaft is not detached, so that the decorative pendulum is held. Then, when the protruding shaft is introduced into the notch hole of the knob and the knob is rotated, the protruding shaft is held while being surrounded by the receiving piece on the outer periphery of the one-side opening hole and the notch hole. . Of course, when the protruding shaft is to be separated from the closed space in order to swing and use the decorative pendulum, the knob may be rotated so that the one-side opening hole of the receiving piece and the notch hole of the knob are aligned with each other.

(Example) Hereinafter, the present invention will be described with reference to the accompanying drawings.

The drawings show an embodiment of the present invention. Fig. 1 is a central longitudinal sectional view of a pendulum timepiece, Fig. 2 is a rear view thereof, Fig. 3 (a) is a front view of a knob, and Fig. 3 (b) is The same right side view, FIG. 3 (C)
4A and 4B are rear views of the same, and FIGS. 4A and 4B are explanatory views of a fixing operation.

In the figure, 1 is a movement, 2 is a pointer, 3 is a dial, 4 is a correction knob, 5 is a front cover, 6 is a back cover, and the front cover 5 and the back cover 6 constitute a watch case 7. There is. An open leg 8 is formed in the lower portion of the front cover 5, and the open leg 8
The lower end of is fixed on the base 9. Reference numeral 10 is a battery housed in the base 9, 11 is a circuit board also mounted in the base 9, and 12 is a drive coil arranged on the circuit board 11.

Reference numeral 13 denotes a pendulum retaining shaft that projects from the center of the semicircular open leg 8 toward the front, and the decorative pendulum 15 is pivotally mounted on the pendulum retaining shaft 13. Reference numeral 14 is a retaining member formed on the protruding tip of the pendulum retaining shaft 13. 27 is a decorative pendulum
The magnet 27 is a magnet fixed to the lower surface of the magnet 15. The magnet 27 forms a pair with the drive coil 12 and plays a role of maintaining the swinging motion of the decorative pendulum 15.

The fixing device according to the present invention is applied to the above-described decorative pendulum.

That is, the protruding shaft 16 is formed on the rear surface of the decorative pendulum 15 and at a position away from the swing axis of the decorative pendulum 15, while the receiving piece 17 for fixing the protruding shaft 16 is opened by the leg 8. It is installed in. More specifically, the receiving piece 17 is provided in the part of the open leg 8 that abuts on the extension line of the swinging locus of the protruding shaft 16, and the protruding piece 16 is introduced into the receiving piece 17. Therefore, in order to rotatably fit a knob 20 described later, a hole (hereinafter, referred to as "one side opening hole 18") having an opening on the side facing the swing locus is formed.

Reference numeral 20 denotes a knob that is rotatably (rotatably) fitted into the one-side opening hole 18, and has a knurled head 22 on one side of a body portion 21 slidingly contacting the one-side opening hole 18 and a body portion. It has a shape having a tab 23 on the other side of 21. Reference numeral 24 is a slotted hole formed in the claw 23 and the body portion 21 in order to easily bend the claw 23 and the body portion 21.

Then, a cut hole 25 is formed on one side of the knob 20 so as to extend over the head portion 22, the body portion 21, and the claw 23 in parallel with the center line of the knob 20.
Is formed. Further, the head 22 is cut out on the side opposite to the cut hole 25, and a stopper wall 26 is provided, and the stopper wall 26 comes into contact with the projection 19 projecting from the receiving piece 17 so that the knob 20 is required. The configuration is such that it does not rotate above.

The knob 20 applies the claw 23 to the opening hole 18 and pushes it in, whereby the claw 23 bends toward the slime hole 24 side,
Thereafter, the body portion 21 of the knob 20 fits into the opening hole 18.

Therefore, when storing or transporting the timepiece, as shown in FIG. 4 (a), the cutout hole 25 of the knob 20 is aligned with the one-side opening hole 18 of the receiving piece 17 and the decorative pendulum 15 is attached. Salient shaft
16 is introduced into the one side opening hole 18 and the cutout hole 25, and the knob 20 is rotated, so that as shown in FIG. 4B, the protruding shaft 16 is surrounded by both holes 18 and 25. In other words, it is a fixed state. Further, in order to release the fixed state, the reverse operation is performed.

(Effects of the Invention) As described above, according to the present invention, the decorative pendulum can be fixed or released by simply rotating the knob, and in the above-described configuration of the present invention, the knob is attached to the receiving piece. The structure is simple, the number of parts is small, the number of assembly steps does not increase, and a compact fixing device can be realized. Furthermore, there are advantages that fixing and releasing operations are simple. Particularly, in the present invention, when the protruding shaft is introduced into the cut hole of the knob and the knob is rotated, the protruding shaft is
Since it is held by being surrounded by the receiving piece on the outer periphery of the one side opening hole and the cut hole, the decorative pendulum can be fixed easily, quickly and surely during transportation or the like.

[Brief description of drawings]

The drawings show an embodiment of the present invention. Fig. 1 is a central longitudinal sectional view of a pendulum timepiece, Fig. 2 is a rear view thereof, Fig. 3 (a) is a front view of a knob, and Fig. 3 (b) is The right side view, FIG. 3 (C) are the same rear views, and FIG. 4 (A) and (B) are explanatory views of the fixing operation. 7 ... Watch case, 15 ... Decorative pendulum, 16 ... Projection shaft 17 ... Retaining piece, 18 ... Opening hole on one side, 20 ... Knob 21 ... Body, 22 ... Head, 25 ... … Cut holes

Claims (1)

[Scope of utility model registration request] 1. A fixing structure for a decorative pendulum swingably mounted on a watch case, wherein a salient shaft is formed on a rear side of the decorative pendulum and at a position away from a swing axis center point. A receiving piece having a one-sided opening hole for introducing the protruding shaft is provided at a position closer to one side of the watch case and on the extension of the swing locus of the protruding shaft, and a notch hole is formed in the one side opening hole. A knob formed on the side wall is rotatably fitted, and the knob has a body and a head provided on one side of the body, and the body fits into the one side opening hole. Wear, further, when the protruding shaft is introduced into the cut hole and the knob is rotated,
A fixing structure for a decorative pendulum, wherein the projecting shaft is surrounded and held by a receiving piece on the outer periphery of the one side opening hole and the cut hole.