JP3546907B2 - Watch bezel structure - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a bezel structure of a timepiece, and more particularly to a bezel structure combining two rings made of different materials.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a ring-shaped bezel attached to the upper outer periphery of a body has been used to increase a fixing force of glass or to indicate a specific time or the like by an index or the like engraved on the surface. In recent years, in particular, the design of the bezel has been emphasized, and bezels with various decorations have been attached.
[0003]
Generally, the bezel is fixed to the upper outer periphery of the trunk by bonding, brazing, or the like, or is attached by press-fitting with an elastic packing or a ring spring interposed between the trunk and the bezel so as to be rotatable. I was
[0004]
[Problems to be solved by the invention]
In the conventional bezel, when fixing to the body by bonding, brazing, or the like, the body and the bezel are preferably made of the same metal, and the material is preferably limited. There was a problem that assembling was troublesome because it had to be incorporated.
[0005]
In addition, the bezel is usually made of a simple substance such as metal, and the surface of the bezel is engraved or plated to enhance the decorativeness.However, the shape and structure were standardized, so the design was further improved. It was difficult to plan.
[0006]
Furthermore, since the mounting structure of the fixed bezel fixed to the conventional barrel and the rotatable rotating bezel were completely different, the manufacturing and assembly were performed through separate manufacturing processes, respectively, and mass productivity was improved. Had to be reduced.
[0007]
SUMMARY OF THE INVENTION The present invention has been made in view of the above-described conventional problems, and has as its object the purpose of a timepiece in which assembly is easy, design can be improved, and a fixed bezel can be easily changed to a rotating bezel. It is to provide a bezel structure.
[0008]
[Means for Solving the Problems]
A bezel structure of a timepiece according to the present invention has a body having an annular groove formed at an upper part of an outer periphery and having an upper part serving as an engagement edge, which is externally fitted in the annular groove and engages with the engagement edge on an inner peripheral surface. A first ring having a plurality of inwardly projecting portions and having a plurality of outwardly projecting portions on an outer peripheral surface; and an engaging portion fitted to the first ring and engaging with the outwardly projecting portions. A bezel for a wristwatch, comprising: a first ring portion orbiting around the body, and projecting outward and upward from a part of an outer periphery of the first ring portion. A plurality of wall portions, wherein the second ring corresponds to a second ring portion orbiting the trunk, and a wall portion formed on the first ring from a part of an outer periphery of the second ring portion. An arm projecting outward at a position where the arm fits between the walls formed on the first ring. And said second ring portion on the first ring portion of the first ring, characterized in that it is integrated with fitted so as to cover the second ring portion.
Further, the first ring is formed of a synthetic resin, and the second ring is formed of a metal.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
In the bezel structure of the timepiece of the present invention, the bezel is composed of a first ring and a second ring, the first ring is fitted in the annular groove of the body, and the first ring is further fitted with the second ring. Is externally fitted. The first ring is retained by its inward protrusion engaging the engagement edge of the annular groove, and the second ring has its engagement portion connected to the outward protrusion of the first ring. The engagement is made integral with the first ring. Therefore, the first ring externally fitted to the body can be formed of synthetic resin, and the second ring externally fitted to the first ring can be formed of metal. In addition, the second ring can be directly and easily press-fitted without using packing or the like, and the bezel can be smoothly rotated by the first ring. In addition, by using the first and second rings made of different materials as described above, the design can be improved.
[0010]
Further, a concave portion and a convex portion are respectively formed in the annular groove and the first ring of the body, and when these are fitted together, a fixed bezel is formed. By removing the convex portion during assembly or the like, a rotating bezel can be formed. Therefore, the basic structure and the assembling process of the fixed bezel and the rotating bezel can be made almost the same, and mass productivity can be greatly improved.
[0011]
【Example】
1 to 3 are cross-sectional views showing a bezel structure of a timepiece according to one embodiment of the present invention, and show cross-sectional shapes of AA, BB, and CC portions of the bezel structure shown in FIG. ing.
[0012]
Reference numeral 2 denotes a body in which the timepiece body is housed, and an annular groove 4 that opens outward is formed above the outer periphery. An engagement edge 4a with which a first ring described later is engaged is provided at an upper portion of the annular groove 4. A circumferential step 6 is provided below the annular groove 4. As shown in FIG. 3, the step portion 6 has a recess 8 at one or several places.
[0013]
Reference numeral 10 denotes a bezel. In this embodiment, the bezel 10 includes a first ring 12 made of a synthetic resin such as a plastic and a second ring 14 made of a metal such as zinc and stainless steel.
[0014]
As shown in FIGS. 6 and 7, the first ring 12 has a ring portion 12a and a plurality of wall portions 12b protruding outward and upward from a part of the outer periphery of the ring portion 12a. . On the inner peripheral surface of the ring portion 12a between the wall portions 12b, a hook-shaped inward protruding portion 12c having a guide slope on the lower side and a horizontal surface on the upper side is provided at at least three positions on one circumference in a well-balanced position. Is formed. A hook-shaped outer protrusion 12d is formed on the outer peripheral surface of the ring portion 12a opposite to the inner protrusion 12c. Further, the ring portion 12a is provided with a slit damper 12e formed between the inwardly protruding portion 12c and the outwardly protruding portion 12d.
Further, on the lower surface of the ring portion 12a at the portion where the thickness is increased in the wall portion 12b, a convex portion 12f that fits the concave portion 8 of the body 2 is provided.
[0015]
On the other hand, the second ring 14 includes a ring portion 14a, an arm portion 14b projecting outward from a part of the outer periphery of the ring portion 14a corresponding to the outward projecting portion 12d of the first ring 12, and And an engagement portion 14c formed by bending the lower end of the arm portion 14b inward.
[0016]
Next, an engagement state of the bezel structure having the above configuration will be described. The first ring 12 is fitted from above the body 2 and is fitted inside the annular groove 4. When the first ring 12 is externally fitted in this way, the inwardly protruding portion 12c of the first ring 12 is engaged with the engaging edge 4a of the annular groove 4 and is prevented from coming off. In this embodiment, the lower surface of the ring portion 12a of the first ring 12 externally fitted in the annular groove 4 is placed on the step portion 6 of the body 2, and the convex portion 12f has a concave portion. 8 is fitted.
[0017]
Further, the second ring 14 is externally fitted so as to cover the ring portion 14 a on the ring portion 12 a of the first ring 12, and the arm portion 14 b is formed on the wall portion 12 b of the first ring 12. The first ring portion 12 is integrated with the first ring portion 12 by engaging the engaging portion 14c with the outwardly protruding portion 12d of the first ring 12.
[0018]
In the engagement state as described above, since the convex portion 12f of the first ring 12 and the concave portion 8 of the body 2 are fitted, the first ring 12 is attached to the body 2 in a rotatable state. It cannot rotate, but remains fixed. For this reason, the second ring 14 integrated with the first ring 12 is also fixed without rotating.
[0019]
On the other hand, when the convex portion 12f of the first ring 12 is removed during assembly or the like, the first ring 12 is rotatably fitted in the annular groove 4 of the body 2 in a rotatable state. Thus, the first ring 12 and the second ring 14 integrated therewith are rotatable, forming a rotating bezel. In this case, since the body 2 and the first ring 12 are engaged at at least three balanced positions on one circumference, smooth rotation is ensured.
[0020]
Although the first ring 12 and the second ring 14 may be made of the same material, the first ring 12 is formed of a synthetic resin as in the present embodiment, and the second ring 14 is formed of a metal. In this case, the friction between the body 2 and the first ring 12 can be reduced, and the first ring 12 and the second ring 14 can be smoothly rotated. You can also give a feeling. Also, when assembling the first ring 12 to the body 2 or assembling the second ring 14 to the first ring 12, if the first ring 12 has elasticity, the assembling is easy. Thus, the workability can be improved. In this embodiment, since the slit damper 12e is provided on the first ring 12, not only the elasticity due to the material of the first ring 12, but also the inward protruding portion 12c to which the most stress is applied at the time of assembly and the outer The protruding portion 12d has a structure that is easily elastically deformed, and prevents a fitting or engagement portion from being damaged, so that it is easy to assemble.
[0021]
In the bezel of this embodiment, numerals, marks, and the like are formed on a part of the wall portion 12b of the first ring 12, and numerals, marks, and the like are similarly formed on the upper surface of the second ring 14 made of metal. Are formed to constitute one design. By forming the design with two pairs of parts in this way, the design can be improved and the variations can be expanded.
[0022]
【The invention's effect】
According to the present invention, since the bezel is composed of the first and second rings, the first ring is made of synthetic resin, and the second ring is made of metal, so that the assembling becomes easy and the appearance is improved. The design can be improved by increasing the number of design variations without changing the structure, such as by using a metal or a combination of a metal and a synthetic resin.
[0023]
In addition, by forming the first ring that is directly fitted on the body with a synthetic resin, the first ring can be smoothly rotated with respect to the body, and there is no need to interpose a packing or a spring, Further, since the bezel is formed of the first and second rings, the first and second rings can be formed in a shape that is easy to form, and the manufacturing cost can be reduced.
[0024]
Furthermore, since the fixed bezel can be turned into a rotating bezel simply by removing the convex portion provided on the first ring, there is no need to separately manufacture and assemble the fixed bezel and the rotating bezel, thus greatly improving mass productivity. Can be done.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view taken along the line AA of FIG. 4, showing a cross section of a bezel structure of a timepiece according to an embodiment of the present invention.
FIG. 2 is a sectional view taken along the line BB of FIG. 4, showing a section of the bezel structure of the timepiece shown in FIG. 1;
3 is a cross-sectional view taken along the line CC of FIG. 4, showing a cross section of the bezel structure of the timepiece shown in FIG. 1.
FIG. 4 is a plan view of a bezel structure of the timepiece shown in FIG. 1;
5 is a side view of the bezel structure of the timepiece shown in FIG.
FIG. 6 is a plan view of the first ring shown in FIG. 1;
FIG. 7 is a side view of the first ring shown in FIG. 6;
[Explanation of symbols]
2 Body 4 Annular groove 4a Engagement edge 6 Step 8 Recess 10 Bezel 12 First ring 12a Ring 12b Wall 12c Inward protrusion 12d Outward protrusion 12e Slit damper 12f Convex portion 14 Second ring 14a Ring Part 14b Arm part 14c Engagement part

Claims (2)

A body having an annular groove formed above the outer periphery and having an upper portion serving as an engagement edge; and a plurality of inwardly projecting portions fitted on the inner surface of the annular groove and engaged with the engagement edge. and a first ring having a plurality of outwardly projecting portion on the outer peripheral surface, is fitted into the ring first, from a second ring having an engagement portion engaged with the outer protrusion Bezel for watches
The first ring includes a first ring portion surrounding the body, and a plurality of walls protruding outward and upward from a part of the outer periphery of the first ring portion, and the second ring includes A second ring portion surrounding the body, and an arm portion protruding outward from a part of the outer periphery of the second ring portion at a position corresponding to the wall portion formed on the first ring, An arm fits between the wall portions formed on the first ring, and the second ring portion places the second ring portion on the first ring portion of the first ring. bezel structure of the arm timepiece, characterized in that fitted to are integrated so as to cover. The wristwatch bezel structure according to claim 1, wherein the first ring is formed of a synthetic resin, and the second ring is formed of a metal.

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