JP2010156718A - Timepiece - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technique for obtaining a timepiece superior, especially, in resistance to water. <P>SOLUTION: The timepiece includes a front plate 20 provided with a dial; a back lid 70 mounted on the back surface of the front plate; and a timepiece mechanism disposed between the front plate 20 and the back lid 70. The front plate and the back lid are provided with ring-like ribs 20a and 70a surrounding the timepiece mechanism, respectively; a sealing member 80 is mounted between the rib 20a of the front plate 20 and the rib 70a of the back lid 70; and the sealing member 80 has both a first recess part 81 for fitting the rib 20a provided in the front plate and a second recess part 82 for fitting the rib 70a provided in the back lid. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a timepiece having improved waterproofness.

  In general, a watch is waterproofed by placing an elastic resin sealing member between the members constituting the watch frame. A configuration for waterproofing a timepiece using a seal member is also disclosed in Patent Documents 1 to 3, and the like.

JP-A-9-318770 JP 2001-296375 A JP 2001-289967 A

  In recent years, the design of watches has been increasingly diversified, and the watch frame is also required to have a configuration that can more reasonably ensure design, assembly, and waterproofness. The present invention has been made in view of such circumstances, and an object thereof is to obtain a timepiece particularly excellent in waterproofness.

  When the invention described in the first claim of the present application is described with the reference numerals used in the embodiments, the front plate 20 provided with a dial, the back cover 70 attached to the back of the front plate, A timing mechanism disposed between the front plate 20 and the back cover 70, and the front plate and the back cover are provided with annular ribs 20 a and 70 a surrounding the timing mechanism, respectively. A seal member 80 is mounted between the rib 20a of the back cover 70 and the rib 70a of the back cover 70. The seal member 80 includes a first recess 81 into which the rib 20a provided on the front plate is fitted, and the back surface. This is a timepiece having a second recess 82 in which a rib 70a provided on the lid is fitted.

  The invention described in claim 2 of the present application is that, in claim 1, bolts to be screwed to the front cover and the back cover are provided between the front plate 20 and the back cover 70, and the bolts are tightened. The timepiece is configured such that the seal member 80 is compressed.

  According to the present invention, the seal member having the first recess 81 for fitting the rib 20a and the second recess 82 for fitting the rib 70a between the rib 20a of the front plate 20 and the rib 70a of the back cover 70. Since 80 is attached, a watch with excellent water resistance can be obtained.

It is a front view which shows the timepiece concerning the Example of this invention. It is a back view which concerns on the Example of this invention and shows a timepiece. 1 is a side sectional view showing a timepiece according to an embodiment of the present invention. It is a rear view which concerns on the Example of this invention and shows the inside of a timepiece. FIG. 3 is an aa cross-sectional view of FIG. 2 according to the embodiment of the present invention. FIG. 3 is a cross-sectional view taken along the line bb of FIG. 2 according to the embodiment of the present invention.

  Embodiments of the present invention will be described below in detail with reference to the drawings. The timepiece 1 of this example shown in FIGS. 1 to 6 is an analog wall clock. The timepiece 1 is a radio wave correction clock that receives a standard time radio wave and corrects the time. FIG. 1 is a front view showing a timepiece. FIG. 2 is a rear view showing the timepiece. FIG. 3 is a side sectional view showing the timepiece. FIG. 4 is a rear view showing the inside of the timepiece. FIG. 5 is a cross-sectional view taken along the line aa in FIG. 6 is a cross-sectional view taken along line bb of FIG.

  Hereinafter, the configuration of the timepiece 1 of this example will be described according to the assembling procedure. First, a predetermined timing mechanism is provided on the front plate 20 on which the dial 21 is provided. In the timing mechanism of this example, the pointer 11 is arranged on the front surface of the front plate 20 (on the dial plate 21), the movement 12 that drives the pointer 11 on the back surface of the front plate 20, and the circuit board 13 that controls the timepiece 1. And a radio wave receiving means 14 for receiving standard time radio waves, a power supply 15 for the timepiece 1, and a switch means 16 for operating the timepiece 1.

  Next, a glass or resin transparent plate 30 is mounted on the front surface of the front plate 20. Holes 22 are provided in the front plate 20 at predetermined intervals, and the transparent plate 30 is formed by screwing the first bolts bolt 1 inserted through the holes 22 into the female screw members 40, respectively. And the female screw member 40.

  The female screw member 40 of this example is formed by molding a hard resin into a predetermined shape, and is an annular member surrounding the edge of the transparent plate 30. Female screw portions 41 to which the first bolt bolt 1 is screwed are provided at predetermined intervals at the main points of the female screw member 40. The female screw member 40 is provided with a cover body 50 that partially covers the female screw member 40.

  The cover body 50 is formed by molding a soft resin into a predetermined shape, and has an annular elasticity having a first seal portion 51 that is in close contact with the front plate 20 and a second seal portion 52 that is in close contact with the transparent plate 30. It is a member. When the first bolt bolt1 is tightened, the first seal portion 51 is compressed between the front plate 20 and the female screw member 40, and the second seal portion 52 is compressed between the transparent plate 30 and the female screw member 40. . That is, the first seal portion 51 is in close contact with the front plate 20 to seal the gap therebetween, and the second seal portion 52 is in close contact with the transparent plate 30 to close the gap therebetween. According to such a configuration, it is possible to rationally prevent water from entering from the outside. Further, the cover body 50 has an advantage that it becomes a decoration that borders the dial 21. The color of the cover body 50 can be arbitrarily set to red, blue, yellow, orange, or the like.

  Furthermore, in this example, a first seal member 60 that is an O-ring is also disposed between the front plate 20 and the transparent plate 30. A groove portion 23 for mounting the first seal member 60 is provided at an important point of the front plate 20, and the first seal member 60 is mounted in the groove portion 23 before the first bolt bolt1 is screwed. According to the first seal member 60, the reliability of waterproofing can be further improved.

  Next, the back cover 70 is attached to the back surface of the front plate 20. The timing mechanism provided on the back surface of the front plate 20, that is, the movement 12, the circuit board 13, the radio wave reception means 14, the power supply 15, and the switch means 16 are disposed between the front plate 20 and the back cover 70.

  The back cover 70 is provided with a detachable small cover portion 71. When the small cover portion 71 is removed, the power source 15 and the switch means 16 are exposed. Further, a latching portion 72 for locking the timepiece 1 is provided at an important point of the back cover 70.

The front plate 20 and the back cover 70 of this example are respectively provided with annular ribs 20a and 70a surrounding a timing mechanism disposed between them, and the second ribs 20a and 70a have a second gap between them. The seal member 80 is attached.

  The second seal member 80 is formed by molding a soft resin into a predetermined shape. The second seal member 80 is fitted with a first recess 81 for fitting the rib 20a provided on the front plate 20 and a rib 70a provided on the back cover 70. An annular elastic member having a second recess 82 to be worn.

  The front plate 20 and the back cover 70 are assembled while the second seal member 80 is fitted to the ribs 20a and 70a, and are screwed with the second bolt bolt2. The back cover 70 is provided with holes 73 through which the second bolt bolt 2 is inserted at predetermined intervals, and the front plate 20 is provided with female screw portions 24 for screwing the second bolt bolt 2 at predetermined intervals. ing.

  When the second bolt bolt2 is tightened, the second seal member 80 is pressed between the ribs 20a and 70a, and the gap between them is sealed. According to such a configuration, it is possible to rationally prevent water from entering from the outside.

As described above, according to this example, it is possible to obtain a timepiece that is devised in terms of design and has improved waterproofness. In addition, it is needless to say that the configuration of each part in the present example can be appropriately changed in design within the technical scope described in the claims, and is not limited to that illustrated in the drawings. In particular, the clock of this example is a wall clock, but the configuration can be applied to a table clock, an alarm clock, a portable clock, and the like.

  The watch of the present invention is excellent in waterproofness and can be suitably used as a wall clock, a table clock, an alarm clock, or a portable clock.

DESCRIPTION OF SYMBOLS 1 Timepiece 11 Pointer 12 Movement 13 Circuit board 14 Radio wave receiving means 15 Power supply 16 Switch means 20 Front plate 20a Rib 21 Dial 22 Hole 23 Groove 24 Female thread 30 Transparent plate 40 Female thread 41 Female thread 50 Cover body 51 First seal Portion 52 second seal portion 60 first seal member 70 back cover 70a rib 71 small lid portion 72 latching portion 73 hole portion 80 second seal member 81 first recess portion 82 second recess portion
bolt1 first bolt
bolt2 2nd bolt

Claims (2)

  A front plate 20 provided with a dial, a back cover 70 mounted on the back of the front plate, and a time measuring mechanism disposed between the front plate 20 and the back cover 70, In addition, annular ribs 20a and 70a surrounding the timing mechanism are provided on the back cover, respectively, and a seal member 80 is mounted between the rib 20a of the front plate 20 and the rib 70a of the back cover 70, The timepiece characterized in that the seal member 80 has a first recess 81 for fitting a rib 20a provided on the front plate and a second recess 82 for fitting a rib 70a provided on the back cover. The front plate 20 and the back cover 70 are provided with bolts that are screwed to the front cover and the back cover, and the seal member 80 is pressed when the bolts are tightened. The timepiece according to claim 1.

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