JPH0143665Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a mounting spring.

2. Description of the Related Art Conventionally, for example, in a watch, a watch part incorporating a movement is sometimes attached to a frame part using an attachment spring. This mounting spring has a leaf spring bent at approximately the center, one side of which has a linear shape, and the other side of which is bent into a chevron shape. This mounting spring was compressed and press-fitted into the gap between the watch part and the frame part, the outer surface of the straight part was brought into contact with the timepiece part, and the top of the chevron-shaped part was brought into pressure contact with the frame part. Therefore, since the top of the chevron is located almost at the center of the straight part, this mounting spring cannot be used unless the frame part is thicker than that. It was necessary to stock various types of mounting springs.

The purpose of the present invention is to enable attachment to both thick and thin frames using a single type of attachment spring.

The structural feature of the present invention is that the mounting piece is formed by extending straight from one end of the bent part provided in the center in a straight line on the side surface. The pressing piece is formed by extending the sides in a dogleg shape so as to expand, and can be pressed using the pressing crest or the tip of the pressing piece.

An embodiment of the present invention will be described. 1st, 2nd
As shown in the figure, the mounting spring 1 is bent at the center to form a bent portion 2. A mounting piece 3 extends from one end of the bent portion 2 in a linear shape on the side. The width of the mounting piece 3 is made somewhat larger as a means to prevent it from falling off. A pressing crest 4 is continuous from the other end of the bent portion 2. A side dog-shaped pressing piece 5 extends from the pressing crest 4, and the tip of the pressing piece 5 is attached to the mounting piece 3.
It is expanding against The tip of the attachment piece 3 and the tip of the pressing piece 5 are located at approximately the same distance L from the outer end of the bent portion 2.

Therefore, the case where the clock part is attached to the clock frame will be explained. As shown in Figures 3 to 5, the outer peripheral surface of the watch case 6 into which the movement, dial, pointer, etc. (not shown) are installed has a groove 7 into which the mounting piece 3 of the mounting spring 1 can be tightly inserted. There are multiple locations. Insert the mounting piece 3 of the mounting spring 1 into the groove 7.
... Push it in firmly and attach it to the watch case 6. At this time, if the watch frame 8 is thick as shown in the third figure, the mounting spring 1 is moved from the bent part 2 to the groove 7.
It is preferable to push it inside. When the watch part assembled in this way is fitted into the mounting hole 8a of the watch frame 8, the mounting spring 1 is compressed, and the spring force causes the mounting between the pressing crest 4 and the tip of the pressing piece 5. The inner wall of the hole 8a is pressed, and the spring force acts in a direction to further push the clock frame 8, so that it is firmly attached. Further, when the watch frame 9 is thin as shown in the fourth figure, the mounting spring 1 is attached to the mounting piece 3 and the pressing piece 5.
Push it into groove 7 from the tip. Mounting piece 3
and the tip of the pressing piece 5 are aligned, so the pressing piece 5
The tip reaches the back of the flange of the watch case 6. When the watch frame 9 is fitted into the mounting hole 9a, the tip of the pressing piece 5 of the mounting spring 1 is compressed, and the strong repulsion force causes the mounting spring to be firmly mounted.

The mounting spring 11 shown in FIGS. 5 and 6 shows another example, in which a locking hole 13a is provided in the mounting piece 13 as another means for preventing the mounting piece 13 from falling off from the groove 17. A locking pawl 17a is provided at. Therefore, when the mounting spring 11 is pushed into the groove 17, the locking pawl 17a locks into the locking hole 13a, thereby preventing it from falling off. The other shapes of the bent portion 12, the pressing crest 14, and the pressing piece 15 are the same as in the above example.

The attachment spring 21 shown in FIG. 7 shows yet another example, in which the bent portion 22 is bent at right angles to the attachment piece 23. The other shapes of the pressing crest 24 and the pressing piece 25 are the same as in the above example.

As described above, according to the present invention, the same mounting spring can be used to attach both thick and thin watch frames, and for this reason, various watch frames such as wooden frames, thick glass frames, and cast metal frames can be used. , the range of use of the same mounting spring for plate frames etc. can be expanded, making it extremely useful in practice.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a plan view, FIG. 2 is a front view, FIG. 3 is a sectional view showing an installed state, and FIG. 4 is a sectional view showing another installed state. Fig. 5 is a reduced rear view of the case attached to the watch frame, Fig. 6 is an enlarged sectional view taken along the line shown in Fig. 5, and Fig. 7 is a front view of yet another example. It is. 1 , 11 , 21 ...Mounting spring, 2, 12, 2
2...Bending portion, 3,13,23...Mounting piece,
4, 14, 24... Pressing mountain part, 5, 15, 25...
...Press piece, L...Distance.

Claims (1)

[Scope of utility model registration request] a bent part bent at the center; a mounting piece extending linearly from one end of the bent part;
The mounting piece includes a pressing ridge connected to the other end of the bent portion, and a pressing piece extending from the pressing ridge in a dogleg shape on the side so as to widen at the end. An attachment spring characterized in that a tip of the pressing piece is located approximately at the same distance from the outer end of the bent portion, and can be pressed by the pressing crest or the tip of the pressing piece.