KR810001785B1 - Casing ring that secures the watch driver to the watch case - Google Patents

Abstract

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Description

Casing ring that secures the watch driver to the watch case

1 is a partially cut back view of an open wristwatch case provided with a casing ring and a watch driving unit according to the present invention;

2 is a cross sectional view taken from the plane along line 2-2 of FIG.

3 is a front elevational view of a first embodiment of a casing ring;

4 is a plan view of a second embodiment of a casing ring according to the invention;

5 is a front elevational view of a second embodiment of a casing ring;

The present invention relates to a casing ring for a watch, and more particularly, to a casing ring for enclosing a watch driving part fixed in a case and matching the size of the driving part to the size of the case.

In mass production of watches, it is not possible to provide a drive with a diameter and a case. Thus, there is provided a clock driving unit having a given outer diameter to fix the clock driving unit in a case having a larger diameter. Alternatively, the clock driver is fixed in a case having an inner diameter of various sizes larger than the outer diameter. In other cases, it is necessary to fix the clock driving parts of various sizes in a case having the same inner diameter.

In order to adjust the difference between the outer diameter of the clock driving portion and the inner diameter of the case in which it is installed, it is known to provide a casing ring surrounding the clock driving portion and to give the clock driving portion an outer diameter that matches the inner diameter of the relevant case.

This casing ring is useful because it simplifies the manufacturing process and does not require many parts to match the watch drive with the watch case. In addition, the configuration of the casing ring is made in consideration of the fact that in many cases they are not necessarily circular because the clock driving portion and the clock case are oval or other shapes.

A disadvantage of the known type of casing ring is that many watch cases combine with pushbuttons and other types of actuation or regulating devices which act as actuating elements connected to mechanical stops, electrical switches or other actuating elements of the watch actuator. will be.

For example, in a watch case having one or more pushbuttons, it is known in the art to operatively connect the pushbuttons or actuating elements with the actuating elements in the clock to transmit movement of the actuating member to the actuating elements in the clock. The casing ring should provide a button with a pushpin of a suitable length sufficient to pass through the casing ring and to connect with the actuating element. This not only complicates the manufacturing process but is also very inconvenient for clock-driven structures with protruding dials fixed in the case by special methods.

In addition, it is known that the casing ring of the known type transmits the movement of the operating member or pushbutton installed in the case by the auxiliary sliding pin which is not fixed to the push pin to the corresponding operating element of the clock driver. This method raises other technical problems and is uneconomical as it requires the provision of components of auxiliary slide pins of different lengths.

In view of the above, the main object of the present invention is to eliminate the drawbacks of the ring of known type and to operate the clock drive unit fixed in the case by a pushbutton or operating member installed in the watch case without using an auxiliary pin or other method. It is to provide a casing ring that can be operatively connected to the element portion.

In particular, it is an object of the present invention to provide a casing ring for a clock driving unit that matches the size of the case and the clock driving unit and acts as an intermediate operating connection between the operating element portion of the clock driving unit and the operating member installed in the case.

In short, these objects are obtained from a casing ring that effectively encloses the clock driver having an outer diameter smaller than the inner diameter of the case to which the clock driver is fixed and effectively determines the outer diameter of the clock driver in accordance with the inner diameter of the case.

The case is provided with an operating member connected to the operating element part of the clock driving unit for performing adjustment or other operating functions. A portion of the ring inserted between the actuating member in the case and the actuating element portion of the clock driving portion is rotatable in the direction of the main plane of the ring and acts as an intermediate connection therebetween to transmit the movement of the actuating member to the actuating element portion.

Referring to Figures 1, 2 and 3, a casing ring according to the present invention is shown as number one. Ring 1 made of synthetic plastic material surrounds the electronic clock driver 10 and determines the outer diameter of this driver so that it matches the inner diameter of the watch case into which the driver is inserted. Although an electronic clock is shown, the present invention can also be used for a drive of a mechanical clock.

As is apparent from FIGS. 1 and 2, the drive portion 10 has an outer diameter smaller than the inner diameter of the watch case 5 and the casing ring 1 is inserted therebetween to stabilize the position of the drive portion in the case. The front surface of the drive section is covered with glass plate 7. Cover 6 shown in FIG. 1 has several functions, such as an action of fixing a watch.

The clock driving part has an actuating element part which closes the electronic circuit, and this element part is made by a plate metal spring 13 which is fixedly extended to the insulating plate 12. The free end of the spring 13 has a contact 14 on its inner side which is electrically connected in combination with the metal base plate 11 to cause a switch action when the spring 13 is bent inward. The fixed end of the spring 13 is connected to a conductive printed circuit on the insulating plate 12. The free end of the spring 13 on the outer side opposite the contact 14 has a push part 15 made of insulating material.

A cylindrical sleeve 8 with a push button 9 is inserted into a drilled hole in case 5. An apparatus is provided for spring biasing button 9 which causes the button 9 to normally be placed in the inoperative position shown in FIG. 1 (not shown). When pushbutton 9 is pressed by a ballpoint pen or similar device, the head of the button is spring-loaded. Bend 13 to engage contact 14 with metal base plate 11 to perform adjustment or some other function, as described later. Thus, the switching action can be used to correct small deviations of the second hand.

The part of the casing ring 1 inserted between the pushbutton 9 and the push part 15 is transferred to the flexible part 13 so as to transmit the movement from the head of the pushbutton 9 which lies near the inner wall of the watch case 5 to the push part 15 of the flexible spring 13. 2 部) has two. This tongue is rotatable in the direction of the main plane of ring 1.

The tongue 2 is provided by an L-shaped cut of the body of the casing ring 1 and the cut makes a ring bridge 4 of small height below the tongue 2. As best shown in FIG. 1, tongue 2 is made thinner than the body of casing ring 1 to enhance its flexibility except for the relatively thick free end of the tongue forming pushpad 3.

Pushpad 3 is placed between the head of pushbutton 9 and pushbutton 15 on spring 13 and serves as an intermediate connection therebetween. Thus, when pushbutton 9 is pressed inward, this movement is transmitted to push piece 15 by pushpad 3 so that spring 13 bends and the required switch closure is achieved.

Thus, the casing ring 1 not only functions to adjust the diameter of the clock driving part and the different size of the case in which it is installed, but also acts as an intermediate connection between the operating element part of the driving part and the operating member installed in the case, thereby complicating the assembly work. No auxiliary pins or other special connections are required.

The casing 20 ring shown in FIGS. 4 and 5 forms a part of this ring which transmits the movement of the push button or other actuating member in the direction indicated by arrow A to the actuating element of the clock drive enclosed by the ring. Intermediate connections are provided by the upper and lower cuts of the ring making a pair of thin, long extension arms 21 and 22, the ends of which are connected by relatively thick push pads 23.

Since arms 21 and 22 are thicker than the body of the ring, these arms are flexible and allow pushpad 23 to move in the A direction, which is in the direction of the main plane of the ring. This push pad functions as an intermediate connector like push pad 3 of the first embodiment. Arms 21 and 22 and pad 23 are integral with body ring 1 to provide a low cost single ring.

While a preferred embodiment of a watch casing ring according to the present invention has been shown and described, it will be appreciated that many changes and modifications can be made without departing from the spirit of the invention.

Claims (1)

A device for enclosing and extending the diameter of a clock drive for securing a clock driving part in a watch case having an inner diameter that matches the outer diameter of the casing ring, wherein the casing ring is made of synthetic plastic material and parallel to the major plane of the ring Flexible and integrally rotatable connection with the body of the ring, the connection is thick and at least one thin flexible part that constitutes a pushpad that transfers motion from the operating member of the watch case to the operating element of the watch driver. A casing ring having a portion.

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