JP2016114540A - Timer equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress fall of a rotation bezel.SOLUTION: Timer equipment 1 comprises: a case unit 2 whose peripheral edge part 2b is formed into a toric shape in front view, and comprises an engagement groove 25a formed along a peripheral direction on an outer peripheral face of the peripheral edge part 2b; two inside members 41, which are formed into a shape obtained by dividing a torus into two, respectively, and comprise an engagement projection 411a capable of engaging to the engagement groove 25a on an inner peripheral face along the peripheral direction; and a toric external member 42 for covering a front face side and outer peripheral side of two inside members 41 which are in a state of being integrated into a toric state.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a timing device, and more particularly to a timing device including a rotating bezel.

2. Description of the Related Art Conventionally, for example, various timepieces such as wristwatches are known which include an annular rotating bezel on the periphery of a time display unit (see, for example, Patent Document 1).
This type of rotating bezel is generally attached to the apparatus body by a so-called hook structure. That is, engaging portions that can be engaged with each other are respectively provided on the inner peripheral surface of the side plate of the rotating bezel and the outer peripheral surface of the apparatus main body, and the rotating bezel is moved from the front side while elastically deforming the side plate to the outer peripheral side. By assembling to the main body, the engaging portions of the rotating bezel and the apparatus main body are engaged with each other.

JP 2000-98060 A

  However, in the above-described conventional timing device, the side plate of the rotating bezel having the engaging portion is easily elastically deformed in the first place, so that the rotating bezel and the apparatus main body are not so firmly engaged, and a strong impact is applied. If it is received, the rotating bezel may fall off.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a timing device that can suppress the dropping of the rotating bezel.

In order to solve the above-mentioned problem, a timing device according to the present invention is
A case member having a peripheral portion formed in an annular shape when viewed from the front, and an engaging portion formed along the circumferential direction on the outer peripheral surface of the peripheral portion;
A plurality of arc-shaped members each formed in an arc shape formed by dividing an annular ring into a plurality of portions, and a locked portion that can be locked to the locking portion is formed on the inner peripheral surface along the circumferential direction. When,
An exterior member formed in an annular shape covering the front side and the outer peripheral side of the plurality of arc-shaped members in a state of being integrated in an annular shape;
It is characterized by providing.

  According to the present invention, it is possible to suppress the dropping of the rotating bezel.

It is a front view of the timing device in an embodiment. It is a disassembled perspective view of the principal part of the time measuring device in embodiment. It is sectional drawing of the time measuring apparatus in the III-III line of FIG. It is a perspective view of the exterior member in an embodiment. It is sectional drawing which shows the modification of the time measuring device in embodiment.

Hereinafter, the timing device according to the present invention will be described with reference to the drawings.
The embodiments described below are given various technically preferable limitations for carrying out the present invention, but the scope of the present invention is not limited to the following embodiments and illustrated examples.

FIG. 1 is a front view of a timing device 1 according to the present embodiment, and FIG. 2 is an exploded perspective view of a main part of the timing device 1. 3 is a cross-sectional view of the timing device 1 taken along line III-III in FIG. 1, and FIG. 4 is a perspective view of an exterior member 42 described later provided in the timing device 1.
As shown in FIGS. 1 to 3, the timing device 1 according to the present embodiment is an analog wristwatch that displays a time by moving a pointer 21 such as an hour hand or a minute hand on a dial 22. The stationary bezel 3 and the rotating bezel 4 are provided.
In the following description, “upper” means the front direction of the timing device 1 (that is, the viewing side direction), and “lower” means the rear direction of the timing device 1.

The case unit 2 is a housing that houses various components of the timing device 1 and has a case body 20 made of resin.
The case main body 20 is formed in a substantially short cylindrical shape with both upper and lower ends opened, and the upper end and the lower end of the opening are closed with a glass member 23 and a back cover member (not shown). In the interior of the storage chamber 2a defined by the case body 20, the glass member 23, and the back cover member, a time is displayed, which includes a pointer 21, a dial 22, and a timepiece movement for moving the pointer 21. The watch part for doing is accommodated.

The peripheral edge of the upper end of the opening of the case body 20 is formed in an annular shape when viewed from the front centered on the central axis Ax along the vertical direction, and has an upward projecting portion 20a provided with stepped portions on both inner and outer peripheral sides. have.
In the following description, “annular ring” means a shape centered on the central axis Ax. In addition, “circumferential direction” and “radial direction” mean the direction in a circle centered on the central axis Ax.

  On the inner peripheral side of the projecting portion 20a, the above-described disk-shaped glass member 23 is fitted via a packing 24 for sealing a gap between them. More specifically, the annular packing 24 is press-fitted into the inner peripheral side of the projecting portion 20a so as to be disposed at the step portion on the inner peripheral side of the projecting portion 20a. The member 23 is press-fitted. The packing 24 is provided so as not to protrude from the upper surface of the protruding portion 20a that is substantially perpendicular to the vertical direction. In this embodiment, the upper surface of the packing 24 and the upper surface of the protruding portion 20a are substantially flush. ing.

On the other hand, an annular reinforcing member 25 is fitted on the outer peripheral side of the projecting portion 20a so as to be disposed at the step portion on the outer peripheral side. The reinforcing member 25 is a metal member for suppressing deformation of the projecting portion 20 a toward the outer peripheral side due to press-fitting of the glass member 23 and the packing 24. The reinforcing member 25 is provided so as not to protrude from the upper surface of the protruding portion 20a. In this embodiment, the upper surface of the reinforcing member 25 and the upper surface of the protruding portion 20a are substantially flush.
The reinforcing member 25 and the projecting portion 20a of the case body 20 (or further including the packing 24) constitute the peripheral portion 2b on the upper side (front side) of the case unit 2.
Further, in the outer peripheral surface of the reinforcing member 25, a locking groove 25a along the circumferential direction is formed over the entire circumference of the outer peripheral surface in a portion slightly below the center in the vertical direction. The locking groove 25a is formed in a rectangular cross section having an upper surface and a lower surface substantially perpendicular to the vertical direction, and a locking projection 411a of a rotating bezel 4 (inner member 41) described later is locked from the outer peripheral side.

  The fixed bezel 3 is a decorative part exposed to the outside, and is fixed to a portion of the case main body 20 located on the outer peripheral side of the peripheral portion 2b in the case unit 2. More specifically, the fixed bezel 3 is provided over the entire circumference of the case unit 2 with a gap interposed between the fixed bezel 3 and the peripheral edge 2b.

The rotating bezel 4 is for displaying predetermined information (orientation in the present embodiment), is formed in an annular shape, and is attached to the case unit 2 so as to be rotatable around the central axis Ax.
Specifically, the rotating bezel 4 includes two inner members 41 attached to the peripheral edge 2b of the case unit 2 and an exterior member 42 that covers the upper and outer peripheral sides of the two inner members 41. .

Of these, the two inner members 41 are each formed in a semi-annular shape obtained by dividing the annular ring into two equal parts in the circumferential direction, that is, the two inner members 41 constitute one annular component.
Each inner member 41 has a semi-cylindrical side plate portion 411 extending in the vertical direction, and a semi-annular plate-like upper plate portion 412 extending from the upper end of the side plate portion 411 to the inner peripheral side. The shape of the cross section in the radial direction is formed in a uniform substantially L shape composed of the side plate portion 411 and the upper plate portion 412.

Of the side plate portions 411 of each inner member 41, a locking projection 411 a that protrudes to the inner peripheral side is formed on the lower portion of the inner peripheral surface along the entire circumferential direction of the inner peripheral surface. Yes. The locking projection 411a is formed in a rectangular cross section having an upper surface and a lower surface substantially perpendicular to the vertical direction, and is locked from the outer peripheral side to the locking groove 25a of the case unit 2 (reinforcing member 25).
In addition, in the inner peripheral surface of the side plate portion 411 of each inner member 41, an O-ring groove 411 b along the circumferential direction extends over the entire circumference of the inner peripheral surface at a portion slightly above the locking projection 411 a. Is formed. An O-ring 5 for defining (adjusting) the rotational torque of the rotating bezel 4 is inserted into the O-ring groove 411b. The O-ring 5 is an annular elastic member, and is provided in a state of being pressed in the radial direction by the outer peripheral surface of the peripheral edge 2b (reinforcing member 25) of the case unit 2 and the O-ring groove 411b.

The upper plate portion 412 of each inner member 41 is positioned above the peripheral edge portion 2b while interposing a gap with the peripheral edge portion 2b of the case unit 2. An annular buffer member 6 made of an elastic member such as hard rubber is provided in the gap between the upper plate portion 412 and the peripheral edge portion 2 b of the case unit 2. The buffer member 6 reduces the vertical impact transmitted between the case unit 2 and the inner member 41.
In addition, a positioning projection 412a for positioning the relative position in the circumferential direction between each inner member 41 and the exterior member 42 projects from the upper surface of the upper plate portion 412 of each inner member 41 at the center in the circumferential direction. Has been.

On the other hand, the exterior member 42 has an annular shape, and is formed in a substantially L shape having a substantially uniform radial cross-section in the same manner as the inner member 41.
Specifically, the exterior member 42 has a shape having a cylindrical side plate portion 421 along the vertical direction and a substantially annular plate-like upper plate portion 422 extending from the upper end of the side plate portion 421 to the inner peripheral side. Is formed.

  The side plate portion 421 of the exterior member 42 has a lower end formed in a vertical height substantially matching the lower end of the side plate portion 411 of the inner member 41 and covers the outer peripheral side of the side plate portion 411 of the inner member 41. More specifically, the side plate portion 421 has an inner peripheral surface substantially in contact with the outer peripheral surface of the side plate portion 411 of the inner member 41, and a slight gap is interposed between the lower half portion of the outer peripheral surface and the fixed bezel 3. However, the upper half of the outer peripheral surface is exposed.

The upper plate portion 422 of the exterior member 42 is formed to have a size that protrudes slightly inward from the upper plate portion 412 of the inner member 41 and covers the upper portion of the upper plate portion 412 of the inner member 41. The upper plate portion 422 of the exterior member 42 and the upper plate portion 412 of the two inner members 41 are bonded to each other by the two double-sided tapes 7 (adhesive layer) over the entire circumference, thereby The member 41 and the exterior member 42 rotate integrally. The two double-sided tapes 7 are each formed in a circular arc shape that is slightly shorter in the circumferential direction than the semicircular band and has a narrower width than the upper plate portion 422 of the exterior member 42. The two double-sided tapes 7 have one surface (lower surface) affixed to the upper surface of the upper plate portion 412 of the two inner members 41 so as to avoid the positioning protrusions 412a while straddling the divided surfaces of the two inner members 41, respectively. In addition, the other surface (upper surface) is attached to the lower surface of the upper plate portion 422 of the exterior member 42. As a result, the two double-sided tapes 7 adhere (fix) the two inner members 41 and the exterior member 42 and simultaneously adhere (fix) the two inner members 41 themselves.
In the present embodiment, the letters “N”, “S”, “E”, and “W” indicating the directions of east, west, north, and south are displayed on the upper surface of the upper plate portion 422 of the exterior member 42 at intervals of 90 ° in the circumferential direction. Has been.
Of the lower surface of the upper plate portion 422 of the exterior member 42, two positions located at axially symmetric positions with the central axis Ax as the symmetry axis correspond to the positioning protrusions 412a of the two inner members 41 as shown in FIG. Two positioning recesses 422a are provided.

  Subsequently, an attachment procedure when attaching the rotating bezel 4 to the case unit 2 will be described with reference to FIGS. 2 and 3.

  First, with respect to the case unit 2 in which the O-ring 5 is fitted on the outer peripheral surface of the peripheral edge 2b and the cushioning member 6 is placed on the upper surface of the peripheral edge 2b, the two inner members 41 have their respective split surfaces. It is attached to the said peripheral part 2b from the outer peripheral side which mutually opposes so that it may contact | abut. At this time, the two inner members 41 engage the engaging protrusion 411a with the engaging groove 25a of the peripheral edge 2b (reinforcing member 25) and insert the O-ring 5 into the O-ring groove 411b, while the peripheral edge 2b. Attached to. As a result, the two inner members 41 can rotate about the central axis Ax with respect to the case unit 2.

  Next, with respect to the two inner members 41 integrated into an integral annular shape, the two double-sided tapes 7 are arranged so as to avoid the positioning protrusions 412a while straddling the divided surfaces of the two inner members 41, respectively. Affixed to the upper surface of the upper plate portion 412 of the inner member 41.

Next, the exterior member 42 is fitted to the two inner members 41 from above while the two positioning recesses 422a of the exterior member 42 are fitted to the positioning protrusions 412a of the two inner members 41. Then, the upper surfaces of the two double-sided tapes 7 attached to the upper plate portions 412 of the two inner members 41 are also attached to the lower surfaces of the upper plate portions 422 of the outer member 42, and the two inner members 41, the outer member 42, Is glued. Thereby, the exterior member 42 restricts the movement of the two inner members 41 to the outer peripheral side by the side plate portion 421, and holds the two inner members 41 in a rotatable state, while the two inner members 41 are rotated. It will be in the state which can rotate integrally.
In this way, the rotating bezel 4 is prevented from dropping upward due to the locking of the locking protrusions 411a of the two inner members 41 and the locking grooves 25a of the peripheral edge 2b, and also according to the pressing state of the O-ring 5 It is attached to the case unit 2 in a state where it can rotate around the central axis Ax with a predetermined rotational torque.

As described above, according to the present embodiment, the two inner members 41 formed by dividing the annular ring into two of the rotating bezel 4 are engaged with the locking protrusions on the inner peripheral surface with respect to the peripheral edge 2 b of the case unit 2. The 411a is attached from the outer peripheral side so as to be rotatable in the circumferential direction while being locked in the locking groove 25a on the outer peripheral surface of the peripheral edge 2b. In addition, an exterior member 42 formed in an annular shape that covers the upper side (front side) and the outer peripheral side of the two inner members 41 of the rotating bezel 4 holds the two inner members 41 in a rotatable annular shape. The two inner members 41 are fitted from above (front side) so as to rotate together with the two inner members 41.
For this reason, the rotating bezel 4 can be firmly locked to the case unit 2 as compared with the conventional case where the rotating bezel is elastically deformed and engaged with the apparatus main body. 4 can be prevented from falling off.

  In addition, since the annular buffer member 6 is provided between the peripheral edge portion 2b of the case unit 2 and the upper plate portion 412 of the two inner members 41, the outside is transmitted from the rotating bezel 4 to the case unit 2. The case unit 2 can be protected by reducing the impact.

  Further, an O-ring 5 for adjusting the rotational torque of the rotating bezel 4 is provided between the inner peripheral surface (O-ring groove 411b) of the two inner members 41 and the outer peripheral surface of the peripheral edge 2b of the case unit 2. Therefore, the rotational torque of the rotating bezel 4 can be easily adjusted by changing the pressing state of the O-ring 5.

  The two inner members 41 each have a positioning protrusion 412 a that positions the circumferential position relative to the exterior member 42, and the exterior member 42 has a positioning recess 422 a corresponding to the positioning protrusion 412 a of the two inner members 41. Therefore, when the exterior member 42 rotates, the exterior member 42 and the two interior members 41 can rotate integrally while maintaining the positional relationship between the exterior member 42 and the two interior members 41. .

  Since the two inner members 41 and the outer member 42 are bonded with the double-sided tape 7, the two inner members 41 and the outer member 42 are more firmly fitted, and the rotating bezel 4 is firmly attached to the case unit 2. Thus, the falling off of the rotating bezel 4 from the case unit 2 can be suppressed.

  Needless to say, embodiments to which the present invention is applicable are not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.

For example, in the said embodiment, although the case where the inner member 41 of the rotation bezel 4 was two which divided the annular ring into two was illustrated, the said inner member 41 is circular arc formed by dividing an annular ring into plurality. If each is formed, three or more may be sufficient.
Furthermore, as long as these inner members 41 can be rotated smoothly with respect to the case unit 2, they do not have to form a complete annular shape when integrated together. In other words, the plurality of inner members 41 may be substantially annular in which a gap is interposed between the divided surfaces facing each other when attached to the case unit 2.

Moreover, you may comprise so that a click feeling may be given with respect to the user who rotated the rotation bezel 4. FIG.
In this case, as shown in FIG. 5, for example, a plurality of tooth portions 25 b each having a sawtooth cross section are provided on the outer peripheral surface of the peripheral portion 2 b (reinforcing member 25) of the case unit 2 along the circumferential direction. It is only necessary to form only one protrusion 411c on the inner peripheral surface of each inner member 41 so as to be formed over the plurality of teeth 25b.
As a result, the protrusion 411c continuously contacts the tips of the plurality of tooth portions 25b as the rotating bezel 4 rotates, so that the user who operates the rotating bezel 4 feels a click feeling due to light sound and vibration. be able to.

  Further, the positioning protrusions 412a of the two inner members 41 and the two positioning recesses 422a of the exterior member 42 are fitted so that the two inner members 41 and the exterior member 42 can be positioned corresponding to each other. If it is. Therefore, for example, the convex shape and the concave shape may be opposite, and the side plate portions of the inner member 41 and the exterior member 42 may be provided in a slit shape or a rib shape along the vertical direction.

  Moreover, in the said embodiment, although the double-sided tape 7 was illustrated as an adhesive layer which adhere | attaches the two inner members 41 and the exterior member 42, the two inner members 41 and the exterior member 42 are rotated integrally. As long as it is fixed, it may be fixed by a structure other than the adhesive by the double-sided tape 7, for example, it may be fixed by adhesion with an adhesive or fastening with a fastener.

  Moreover, in the said embodiment, although the case where the timing device which concerns on this invention was the analog type timing device 1 was illustrated, the said timing device is not limited to an analog type. For example, it may be a digital timing device provided with a dial (for example, a liquid crystal display unit) that displays various information such as time and calendar information as characters, etc., or both an analog display unit and a digital display unit It may be provided with a dial plate comprising.

  Further, in the above embodiment, the case where the timing device according to the present invention is a wristwatch is illustrated, but the timing device is not limited thereto, and may be a wall clock or a table clock, for example, as long as it displays time. Also good.

As mentioned above, although several embodiment of this invention was described, the scope of the present invention is not limited to the above-mentioned embodiment, The range of the invention described in the claim, and its equivalent range Including.
The invention described in the scope of claims attached to the application of this application will be added below. The item numbers of the claims described in the appendix are as set forth in the claims attached to the application of this application.
[Appendix]
<Claim 1>
A case member having a peripheral portion formed in an annular shape when viewed from the front, and an engaging portion formed along the circumferential direction on the outer peripheral surface of the peripheral portion;
A plurality of arc-shaped members each formed in an arc shape formed by dividing an annular ring into a plurality of portions, and a locked portion that can be locked to the locking portion is formed on the inner peripheral surface along the circumferential direction. When,
An exterior member formed in an annular shape covering the front side and the outer peripheral side of the plurality of arc-shaped members in a state of being integrated in an annular shape;
A time measuring device comprising:
<Claim 2>
The plurality of arc-shaped members each have an upper plate portion positioned above the peripheral edge portion of the case member,
The time measuring device according to claim 1, wherein an annular buffer member is provided between the peripheral edge portion of the case member and the upper plate portion of the plurality of arcuate members.
<Claim 3>
Between the inner peripheral surface of the plurality of arc-shaped members and the outer peripheral surface of the peripheral edge portion of the case member, an elastic member for adjusting the rotational torque of the plurality of arc-shaped members is provided on the two surfaces. The time measuring device according to claim 1, wherein the time measuring device is provided in a pressed state.
<Claim 4>
The plurality of arc-shaped members each have a convex or concave positioning portion that positions a relative position in the circumferential direction with the exterior member,
The time measuring device according to any one of claims 1 to 3, wherein the exterior member has a plurality of concave or convex positioning portions corresponding to the positioning portions of the plurality of arcuate members.
<Claim 5>
The time measuring device according to any one of claims 1 to 4, wherein the plurality of arcuate members are two semicircular members.
<Claim 6>
The locking portion of the case member is formed in a concave shape over the entire circumference on the outer peripheral surface of the peripheral edge portion,
The time counting according to any one of claims 1 to 5, wherein the locked portions of the plurality of arcuate members are each formed in a convex shape over the entire circumference of the inner peripheral surface. apparatus.
<Claim 7>
The time measuring device according to any one of claims 1 to 6, wherein the plurality of arc-shaped members and the exterior member are bonded to each other with an adhesive layer.

1 Timing device 2 Case unit (case member)
2b Peripheral part 20 Case body 20a Projecting part 24 Packing 25 Reinforcing member 25a Locking groove (locking part)
4 Rotating bezel 41 Inner member (arc-shaped member)
411 Side plate part 411a Locking protrusion (locked part)
411b O-ring groove 412 Upper plate part 412a Positioning protrusion (positioning part)
42 exterior member 421 side plate portion 422 upper plate portion 422a positioning recess (positioning portion)
5 O-ring (elastic member)
6 Buffer member 7 Double-sided tape (adhesive layer)
Ax center axis

Claims (7)

A case member having a peripheral portion formed in an annular shape when viewed from the front, and an engaging portion formed along the circumferential direction on the outer peripheral surface of the peripheral portion;
A plurality of arc-shaped members each formed in an arc shape formed by dividing an annular ring into a plurality of portions, and a locked portion that can be locked to the locking portion is formed on the inner peripheral surface along the circumferential direction. When,
An exterior member formed in an annular shape covering the front side and the outer peripheral side of the plurality of arc-shaped members in a state of being integrated in an annular shape;
A time measuring device comprising: The plurality of arc-shaped members each have an upper plate portion positioned above the peripheral edge portion of the case member,
The time measuring device according to claim 1, wherein an annular buffer member is provided between the peripheral edge portion of the case member and the upper plate portion of the plurality of arcuate members.   Between the inner peripheral surface of the plurality of arc-shaped members and the outer peripheral surface of the peripheral edge portion of the case member, an elastic member for adjusting the rotational torque of the plurality of arc-shaped members is provided on the two surfaces. The time measuring device according to claim 1, wherein the time measuring device is provided in a pressed state. The plurality of arc-shaped members each have a convex or concave positioning portion that positions a relative position in the circumferential direction with the exterior member,
The time measuring device according to any one of claims 1 to 3, wherein the exterior member has a plurality of concave or convex positioning portions corresponding to the positioning portions of the plurality of arcuate members.   The time measuring device according to any one of claims 1 to 4, wherein the plurality of arcuate members are two semicircular members. The locking portion of the case member is formed in a concave shape over the entire circumference on the outer peripheral surface of the peripheral edge portion,
The time counting according to any one of claims 1 to 5, wherein the locked portions of the plurality of arcuate members are each formed in a convex shape over the entire circumference of the inner peripheral surface. apparatus.   The time measuring device according to any one of claims 1 to 6, wherein the plurality of arc-shaped members and the exterior member are bonded to each other with an adhesive layer.

Images