JPH029475Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Field of Application> This invention relates to a switch structure using a rotatably provided edge of a portable watch.

<Prior Art> Many rotary switch mechanisms using rotating bezels and the like have been known in the past, but the most common one is known to have a structure as shown in FIG. That is, in the drawing, 4 is a rotating bezel;
2 is a switch pin, 1 is a switch terminal board provided on the circuit board 11, and when the rotating bezel 4 is rotated, the switch pin 2 moves up and down through a plurality of uneven parts 3 provided on the back surface of the rotating bezel 4. When the switch is activated, the switch terminal 1 opens and closes the switch accordingly.

<Problems that the invention attempts to solve> However, with this conventional switch structure,
The waterproofness of the switch pin storage hole provided directly on the body became an issue, and in order to ensure this waterproofness,
Although a gasket was provided in the switch pin housing hole, there were major problems such as the friction of the gasket causing poor response of the switch. or,
Due to the limited size of a portable watch, the number of switch pin settings was limited, and as a result, the number of contacts was also limited. Therefore, this idea was developed by installing a switch inside the rim (hereinafter referred to as the rim of the glass), which is rotatable while keeping the glass fixed and waterproof against the body, to improve responsiveness, secure multiple contact points, and This makes it possible to ensure waterproof performance.

<Function> That is, a switch is formed between the movement and the inner periphery of the glass rim, which is rotatably provided with respect to the body, and waterproofness is provided between the outer periphery of the glass rim and the switch part. A waterproof rotating glass edge switch is realized by interposing a gasket for holding the switch.

<Example> Hereinafter, an example of the present invention will be described in detail based on FIGS. 1 and 3. In the drawing, reference numeral 6 denotes a glass edge that is rotatably provided to the barrel, and a glass 7 is held in the upper opening through a gasket 6d.
Further, reference numeral 6a denotes a claw provided on the back surface of the outer periphery of the glass edge, which engages with the upper flange portion 8a of the body 8 to engage the body with the body. Reference numeral 6b is a protrusion provided on the back surface of the inner periphery of the glass rim, and maintains waterproofness through a gasket 9 between it and the inner wall above the body. 10
is a switch terminal pattern provided on the back surface of the facing surface portion 6c of the glass edge, and as shown in FIG. ) is partially electrically connected to the circuit. Reference numeral 1 denotes a switch terminal, which is electrically connected to the circuit board 11.
In such a configuration, when the glass edge 6 is rotated, the switch terminal pattern 10 provided integrally with the glass edge also rotates, and the switch terminal 1, which is always in contact with the switch terminal pattern surface, is rotated. The switch is turned on and off continuously by alternating the conductive and insulating parts of the terminal pattern. Furthermore, the space between the body and the edge of the glass is kept waterproof by the gasket 9.

In this embodiment, a contact type switch configuration using switch terminals has been described, but it goes without saying that the switch can also be configured using optical sensors, magnetic sensors, etc.

<Effects of the invention> As explained above, this invention has a switch pattern on the glass rim, which is fixed and rotatable, and is highly reliable in terms of waterproofing, dustproofing, operability, etc. It is possible to realize a contact rotary switch, and it is even more effective in reducing costs by reducing the number of parts.Moreover, since waterproofing is maintained between the body and the glass edge, it constitutes an extremely responsive switch. Is possible.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of the main parts of the present invention, FIG. 2 is a sectional view of a conventional bezel switch section, and FIG. 3 is a plan view showing the shape of the wiring pattern on the back side of the glass edge in the present invention. 1...Switch terminal, 6...Glass edge, 7...
Glass, 8... Body, 9... Packing, 10... Switch pattern, 11... Rotating board.

Claims (1)

[Scope of utility model registration request] In a watch that rotatably supports a ring-shaped glass rim that holds a glass in the upper opening of a body housing a circuit board, a switch is provided between the circuit board and a switch pattern provided on the inner periphery of the glass rim on the back side. In addition, a switch structure for a portable watch is provided, in which a protrusion is formed further toward the outer periphery than the switch pattern on the back side of the glass edge, and a gasket is provided between the protrusion and the body.