JP4821402B2 - clock - Google Patents

Description

  The present invention relates to a one-piece structure timepiece.

  Conventionally, with respect to an exterior case of a watch, a one-piece body 90 having a body 91 and a bottom 92 integrally formed as shown in FIG. A structure provided is known (see also Patent Document 1). In addition, 951 is a winding stem and 93 is a crown. Since such a one-piece timepiece has no back cover, when disassembling, a member provided on the front side of the timepiece such as the cover glass 941 and the edge member 942 is removed from the one-piece body 90, In the state accommodated in 90, the front side of the movement 95 is exposed. When the battery 96 disposed on the back side of the movement 95 is replaced, the movement 95 fixed inside the one-piece body 90 needs to be removed from the one-piece body 90 via the inner frame 950 or the like. It was difficult. For these reasons, it has been usual to use a battery replacement-free movement having a mechanical power source and a solar power generation unit for a one-piece structure timepiece.

JP-A-8-166472 (FIG. 3)

  As described above, in a one-piece structure timepiece, the edge member is first removed from the one-piece body, and the movement is further removed from the one-piece body, so that the back side of the movement cannot be exposed to the outside unless the timepiece is completely disassembled. That is, the work at the time of maintenance of the watch including battery replacement is complicated. For this reason, in the case of a one-piece structure timepiece, there has been a restriction that a movement that requires battery replacement cannot be adopted.

  An object of the present invention is to provide a timepiece having a one-piece structure that is easy to maintain.

The timepiece of the present invention includes a movement having a timekeeping portion and a time information display portion for displaying information timed by the timekeeping portion, and an outer case that accommodates the movement, and the outer case includes the movement. A one-piece body in which a body part having an opening to be inserted and a bottom part opposite to the opening in the body part are integrally formed, a cover glass provided in the opening, and an edge that holds the periphery of the cover glass The movement is attached to the edge member, and the movement is provided with a winding stem that protrudes outside from the inside of the movement and is accommodated inside the one-piece body, The one-piece body is provided with a crown connected to the winding stem, and the crown is provided across the inside and the outside of the one-piece body. A crown body that is rotated about the winding stem axis and is screwed onto the winding stem, and the crown body is connected to the crown body side end of the winding stem. The winding stem is configured to be rotatable with respect to the crown main body by being engaged with the winding stem .
A timepiece according to a second aspect of the present invention includes a movement having a timing section and a timing information display section for displaying information measured by the timing section, and an exterior case that houses the movement, A one-piece body in which a body part having an opening into which a movement is inserted and a bottom part opposite to the opening in the body part are integrally formed, a cover glass provided in the opening, and a periphery of the cover glass are held The movement is attached to the edge member, and the movement is provided with a winding stem that protrudes outward from the inside of the movement and is accommodated inside the one-piece body. The one-piece body is provided with a crown connected to the winding stem, and the crown extends between the inside and the outside of the one-piece body. A crown body provided around the shaft of the winding stem and screwed into the winding stem; and a shaft member penetrating the crown body along the axial direction of the winding stem. The member has an engaging portion that can be engaged with an end portion of the winding stem, and the engaging portion is configured to be able to rotate the winding stem with respect to the crown body.

According to these inventions, the rim member back surface side and side surface side of the movement attached to the edge member when removed from the movement is exposed to the outside, touching the back surface side and side surface side of the movement which is exposed in this way Maintenance becomes very easy. That is, Ru can be greatly improved maintainability in one-piece construction.

  In the timepiece of the present invention, it is preferable that the movement has a battery as a driving source on the back surface side opposite to the edge member.

  According to the present invention, it is necessary to replace the battery provided on the back side of the movement, and the movement configuration having a high maintenance frequency makes it possible to further increase the effect that the above-described maintenance is easy.

  In the timepiece of the present invention, an intermediate frame provided around the movement, and the intermediate frame and an inner peripheral surface of the one-piece body are arranged, and the movement is attached to the edge member via the intermediate frame. It is preferable to provide a fixing member to be fixed.

According to the present invention, in addition to the inner frame provided around the movement corresponding to the difference in the size and shape of the exterior case between the watch models, the fixing plate provided in the inner frame is added. The movement can be easily attached to the edge member via the middle frame and the fixing member.
The planar shape of the movement and the one-piece body is arbitrary, such as a circle, a rectangle, a polygon, and a tonneau type, and the shapes of the inner frame and the fixing member are also a circle, a rectangle, and a multiple according to the shapes of the movement and the exterior case The shape may be any shape such as a square or tonneau shape.
In addition, when the movement is directly attached to the edge member, it becomes difficult to arrange a packing for ensuring waterproofness between the opening of the one-piece body and the edge member, or the shape of the packing is aligned along the side surface of the movement. Although it is necessary to have a three-dimensional shape that rises, the configuration becomes complicated, but the difficulty in attaching the movement to the edge member can be eliminated by adding a fixing plate as in the present invention. .
Further, if the fixing member is formed of a magnetically resistant material, it is possible to obtain magnetic resistance for the battery, the coil of the stepping motor, the antenna of the radio timepiece, etc., so that the one-piece body need not be made of the magnetically resistant material, thereby reducing the cost.
Note that the middle frame and the fixing member may be integrally formed.

  In the timepiece of the present invention, it is preferable that the fixing member is fixed to the edge member via a parting provided on the inner peripheral side of the edge member.

  According to the present invention, since the parting is provided on the inner peripheral side of the edge member, the fixing member is attached to the edge member through the parting, so that the fixing member is fixed to the engaging portion between the edge member and the one-piece body. The fixing member can be easily attached to the edge member without interference.

The timepiece of the present invention, before Symbol fixing member is a substantially annular, is secured by screws to the edge member or the parting at regular intervals at a plurality of positions in the radial direction, a portion of the fixing member Preferably, the winding stem is disposed, and a notch is formed in accordance with an angle formed by adjacent screws of the screws with respect to a circle center of the fixing member.

  According to this invention, when fixing the fixing plate to the edge member with the screw, one of the edge member or parting and the fixing member is rotated in the circumferential direction with respect to the other, so that the hole of the fixing plate and the edge member or parting It is necessary to align with the screw hole, but at this time, the part where the winding stem is arranged but the screw hole is not arranged is opened according to the screw interval by the notch, and the edge member (or parting) of the fixing plate is released from the notch Since the amount of deviation of the screw hole position can be quickly grasped when the screw hole is exposed, the angle at which the fixing member and the edge member (or parting) are rotated relative to each other can be reduced. Thereby, productivity improves.

In the timepiece of the first invention, the movement is provided with a winding stem that protrudes outward from the inside of the movement and is accommodated inside the one-piece barrel, and is connected to the winding stem. A crown is provided, and the crown has a crown body that is provided around the inside and outside of the one-piece cylinder and is rotated about the winding stem axis and screwed into the winding stem, The crown body is configured to be engageable from the outside of the outer case with respect to the end portion of the winding stem on the side of the crown body, and the crown stem is engaged with the winding stem by the engagement with the winding stem. that is rotatable in respect.

According to the present invention, the crown main body and the winding stem are screwed together, and an appropriate jig is engaged with the end of the winding stem from the outside of the outer case, and the crown main body and the winding stem are screwed by this jig. By rotating the winding stem with respect to the crown main body in the direction opposite to the rotation direction when combined, the crown main body is detached from the winding stem, so that the crown main body can be removed from the one-piece body. In this way, the crown and winding stem can be disassembled from the outside of the one-piece body, so if you remove the crown from the one-piece body, you can easily disassemble the watch into the movement attached to the edge member and the one-piece body. it can.
In other words, in a one-piece watch, the crown and winding stem can be disassembled from the outside of the one-piece body, and the movement is attached to the edge member, so that the disassembly of the watch is extremely easy. Maintenance can be further improved.
Since the winding stem is housed inside the one-piece body, the winding stem does not interfere with the one-piece body when separating the one-piece body and the movement attached to the edge member.

  In this way, the timepiece can be disassembled by disassembling the crown main body and the winding stem, so that it is possible to eliminate the use of a conventionally used setting lever, a button for pressing the setting lever, and the like. For this reason, there is no need to configure the movement differently according to the structure of the exterior case, such as providing a setting lever when the exterior case is a one-piece structure, and providing a button that pushes the setting lever when the structure is other than a one-piece structure. The movement can be made common regardless of the structure.

Further, since the setting lever that is disposed in the vicinity of the opening end of the outer case is not necessary, the size of the dial can be increased.
Further, a button or the like for pressing the buttocks provided on the back cover is no longer necessary, and damage associated with the pressing operation of the button or adhesion of dirt to the button does not occur.

In addition, although the structure of the screw formed in the winding stem and the crown main body is arbitrary, the female screw formed in the crown main body is screwed into the male screw formed on the outer periphery of the winding stem, for example. Can be configured. In addition, the configuration of the end portion of the winding stem that can be engaged from the outside of the one-piece body is arbitrary as long as the winding stem can be prevented from rotating with respect to the crown body. Examples of the engagement between the protrusions such as width and polygonal shape and the grooves can be given.
And when the opening which connects the edge part of a winding stem to the exterior of a one-piece trunk | drum is formed in the crown main body, it is preferable that this opening is covered with a cover member.

In the timepiece of the second invention, the movement is provided with a winding stem that protrudes outward from the inside of the movement and is housed inside the one-piece barrel, and is coupled to the winding stem. A crown is provided, and the crown is provided between the inside and outside of the one-piece cylinder, and is rotated around the winding stem axis and screwed into the winding stem, and the crown. A shaft member penetrating the main body along the axial direction of the winding stem, and the shaft member has an engaging portion engageable with an end portion of the winding stem, and the winding portion is used to engage the winding portion. that is rotatable in a true for the crown body.

According to the present invention, the crown includes the shaft member, and the shaft member is rotated with respect to the crown main body, thereby providing substantially the same effect as that of the above invention. Since it is not necessary to search for the end portion of the winding stem inside, handling property can be improved.
In addition, the shaft member is configured to penetrate the crown body, and the crown body is formed with a hole or the like through which the shaft member is inserted, but this hole can be blocked by the shaft member. The waterproofness of the outer case can be secured.

  According to the present invention, it is possible to provide a timepiece having a one-piece structure that is easy to maintain.

Embodiments of the present invention will be described below with reference to the drawings. In the following description, components that are substantially the same as those already described are denoted by the same reference numerals and description thereof is omitted or simplified.
[1. Overall configuration of the watch
FIG. 1 shows a side sectional view of a timepiece 1 of the present embodiment. The timepiece 1 includes a movement 10 as a timekeeping section and an outer case 20 that houses the movement 10. On the front side of the movement 10, a dial 11 and a pointer 12 are provided as a time information display unit, and on the back side of the movement 10, a battery 13 is provided as a drive source. The timepiece 1 is an analog or digital electronic timepiece, and a winding stem 14 of the movement 10 is operated by a crown 30 provided on a side surface of the exterior case 20.

[2. Configuration of exterior case)
The outer case 20 includes a one-piece body 21, a cover glass 22 provided in the opening 210 of the one-piece body 21, and an annular edge member 23 that holds the periphery of the cover glass 22.

The edge member 23 holds the cover glass 22 through the packing 231 and also functions as a decorative edge (bezel). A female screw portion 232 is formed on the inner periphery of the edge member 23, and a parting (dial ring) 15 around the dial plate 11 is screwed into the female screw portion 232.
Further, an annular rib 233 that is press-fitted into the opening of the one-piece body 21 protrudes from the back side of the edge member 23. A rubber packing 233 </ b> A is interposed between the rib 233 and the end of the one-piece body 21. Further, in the 3 o'clock direction of the rib 233, a notch 233B (FIG. 2) for escaping the crown 14 is formed.

  The one-piece body 21 is made of a non-magnetic material made of resin or metal, and a body portion 211 having an opening 210 into which the movement 10 is inserted and a bottom portion 212 opposite to the opening 210 in the body portion 211 are integrally formed. ing. A pipe 211 </ b> A (FIG. 6) through which the crown 30 is inserted is fixed to the side surface of the body portion 211.

A substantially annular middle frame 213 is disposed between the inner circumferential surface of the one-piece body 21 and the movement 10, and the outer circumference of the middle frame 213 is a fixing member formed in a substantially annular shape by a magnetic resistant material. The fixed plate 40 is fixed.
The fixed plate 40 extends from the outer periphery of the middle frame 213 to the vicinity of the inner peripheral surface of the trunk portion 211 and supports the legs 111 provided at several places on the back surface of the dial plate 11. Due to the fixing plate 40 and the middle frame 213, the impact resistance during dropping is enhanced.
A rib 41 that protrudes toward the bottom 212 is formed at the end of the fixing plate 40 on the outer peripheral side of the middle frame 213.

Here, the end portion 42 on the inner peripheral surface side of the body portion 211 of the fixing plate 40 is fixed to the parting 15 screwed into the edge member 23 by screws 421 at a plurality of radial positions. That is, the movement 10 is attached and fixed to the edge member 23 by fixing the fixing plate 40 to the parting line 15.
FIG. 2 shows the back side of the timepiece 1 with the one-piece body 21 removed. A part of the middle frame 213 is notched along the radial direction, and the winding stem 14 is disposed in the notch 213A. The fixing plate 40 is fixed to the parting line 15 by four screws 421 provided at equal intervals in the circumferential direction.

  A notch 43 is formed at a portion of the fixed plate 40 where the winding stem 14 is disposed at an angle substantially the same as the angle formed by the adjacent screw 421 with respect to the circle center of the fixed plate 40. As shown in FIG. 2, when the parting 15 screwed into the edge member 23 and the fixing plate 40 are assembled, the winding stem 14 is not installed in the movement 10 and the fixing plate 40 through which the screw 421 is inserted. When aligning the hole and the screw hole of the parting line 15, the fixing plate 40 is rotated in the circumferential direction to expose the screw hole of the parting part 15 from the notch 43, thereby grasping the shift amount of the fixing plate 40 with respect to the parting line 15. To do. That is, since the amount of deviation can be quickly grasped when the screw hole of the parting line 15 is exposed from the notch 43, the angle at which the fixing plate 40 is rotated can be reduced. As a result, the assembly efficiency is improved without providing positioning pins or the like. The angle of the notch 43 changes according to the number of screws 421.

  Here, the assembly of the timepiece 1 will be briefly described. First, the parting part 15 is screwed and fixed to the edge member 23, and then the movement 10 to which the dial 11 has already been attached is attached in the middle frame 213. Further, the movement 10 is attached to the edge member 23 by fixing the fixing plate 40 fixed in advance to the middle frame 213 to the parting line 15 with the screw 421 according to the above-described procedure. After the fixing plate 40 and the edge member 23 are assembled in this manner, the winding stem 14 is installed on the movement 10, and the rib 233 of the edge member 23 is inserted into the opening 210 of the one-piece body 21. The held movement 10 is accommodated in the one-piece body 21. Finally, the crown 30 is inserted into the pipe 211 </ b> A from the outside of the one-piece body 21, and the crown 30 is connected to the winding stem 14, whereby the timepiece 1 is assembled.

[3. Crown configuration
Next, the crown 30 will be described with reference to FIGS. 1 and 3 to 5. Here, the configuration of the winding stem 14 to which the crown 30 is connected will also be described. FIG. 3 is a side sectional view of the crown 30 and the winding stem 14, and FIG. 4 is an exploded view of the crown 30 and the winding stem 14. 5A is a view taken along arrow VA in FIG. 3, and FIG. 5B is a view taken along arrow VB in FIG.
The crown 30 is provided across the inside and outside of the outer case 20 (FIG. 1), and is connected to the winding stem 14 inside the outer case 20 and the main body along the axial direction A of the winding stem 14. And a shaft member 32 penetrating through 31.

  The main body 31 has a head 311 that protrudes to the outside of the one-piece body 21, and an insertion portion 312 that is inserted into the pipe 211 </ b> A (FIG. 6) on the side of the one-piece body 21 and connected to the winding stem 14. A hole 313 is formed through the portion 311 and the insertion portion 312 along the axial direction A of the winding stem 14. Regarding the inner diameter of the hole 313, the diameter dimension on the head 311 side is smaller than the diameter dimension on the insertion part 312 side due to the formation of the step portion 312 </ b> A on the inner peripheral surface of the hole 313. A female screw 312B is formed on the inner peripheral surface of the end portion of the insertion portion 312 on the winding stem 14 side.

The shaft member 32 is inserted into the hole 313 of the main body 31, and an engaged portion 321 (FIG. 5A) having a two-plane width is formed in the axial direction A at the end of the shaft member 32 on the head 311 side. It protrudes along. A packing 321 </ b> A is provided between the side surface of the engaged portion 321 and the inner peripheral surface of the hole 313.
Further, a groove 322 (FIG. 5B) as an engaging portion that engages with the end portion of the winding stem 14 is formed at the end portion of the shaft member 32 opposite to the engaged portion 321 side. Yes.
Further, a stepped portion 323 that engages with the stepped portion 312 </ b> A of the main body 31 from the winding stem 14 side is formed on the outer peripheral portion of the shaft member 32.

  The winding stem 14 extends from the inside of the movement 10 to the vicinity of the pipe 211 </ b> A, and an engaged portion 141 having a two-sided width protrudes from an end portion of the winding stem 14 protruding to the outside of the movement 10. . The engaged portion 141 is engaged with the groove 322 of the shaft member 32. Further, a male screw 142 is formed on the outer periphery of the end portion of the winding stem 14, and the crown 30 is coupled to the winding stem 14 by screwing and fixing the female screw 312 </ b> B of the shaft member 32 to the male screw 142. The

  In such a crown 30, the winding stem 14 rotates by pulling the head 311 of the main body 31 to the outside of the one-piece trunk 21 and then turning it. Due to the rotation of the winding stem 14, in the case of an analog type, the train wheel inside the movement 10 moves to adjust the time, the calendar, and the like. In the case of the digital system, the circuit unit inside the movement 10 operates to adjust the time and calendar and change various settings.

  Here, when disassembling the timepiece 1 for replacing the battery 13 or the like, a tool (not shown) is engaged with the engaged portion 321 of the shaft member 32, and the main body 31 and the winding stem 14 are screwed together. The shaft member 32 is rotated relative to the main body 31 in the direction opposite to the rotating direction at the time. Then, the winding stem 14 rotates with respect to the main body 31 due to the engagement between the groove 322 and the engaged portion 141, and the main body 31 is detached from the winding stem 14. At this time, the engagement between the stepped portion 323 of the shaft member 32 and the stepped portion 312A of the main body 31 causes the shaft member 32 to move away from the winding stem 14 along with the main body 31, and the shaft member 32 and the main body 31 are moved. The crown 30 is removed from the one-piece body 21 by being pulled out from the pipe 211A. By removing the crown 30, there is no member connected to the movement 10 and provided between the inside and the outside of the one-piece cylinder 21, so that the movement 10 and the one-piece cylinder 21 can be disassembled.

  FIG. 6 shows a state in which the crown 30 is removed from the one-piece trunk 21 and the timepiece 1 is disassembled into the one-piece trunk 21 and the movement 10. In the present embodiment, since the movement 10 is attached to the edge member 23, the movement 10 is separated from the one-piece body 21 by removing the edge member 23 from the one-piece body 21, and as shown in FIG. The back side of the provided movement 10 is exposed to the outside.

  That is, when disassembling the timepiece 1 into the movement 10 and the one-piece body 21, the edge member 23 is removed from the one-piece body 21 and then the winding stem 14 is removed from the inside of the movement 10 as in a conventional one-piece structure timepiece. The troublesome procedure of removing the movement 10 from the case 21 and removing the movement 10 from the inside of the one-piece case 21 is unnecessary, and the timepiece 1 is completely disassembled into the movement 10, the edge member 23, and the one-piece case 21. Is not necessary. That is, the battery 13 on the back side of the movement 10 can be easily replaced by simply removing the crown 30 from the one-piece cylinder 21 and removing the edge member 23 from the one-piece cylinder 21 by the shaft member 32.

[4. Effects according to this embodiment
According to this embodiment, there are the following effects.
(1) In the timepiece 1, since the movement 10 is attached to the edge member 23, when the edge member 23 is detached from the one-piece body 21, the back side of the movement 10 attached to the edge member 23 is exposed to the outside. Since the exposed back side and side surface of the movement 10 can be touched in this way, the maintainability in the one-piece timepiece 1 can be greatly improved.

(2) In particular, the timepiece 1 is an electronic timepiece, and the battery 13 is provided on the back side of the movement 10. However, since the back side of the movement 10 can be easily exposed, the battery 13 can be easily replaced. As described above, the timepiece 1 is an electronic timepiece (quartz) that requires replacement of the battery 13 and is frequently disassembled, so that the effect of easy maintenance can be further increased.
That is, for the timepiece 1 that has a one-piece structure and incorporates the battery 13, a configuration in which the movement 10 is attached to the edge member 23 can be most preferably employed, and a one-piece structure in which the battery can be replaced can be realized. In this one-piece structure, since the back cover larger than the opening of the trunk portion is not provided, a thin design such as tapering the back side of the case can be achieved.

(3) The movement 10 is attached to the edge member 23 by a fixing plate 40 fixed to an intermediate frame 213 provided around the movement 10. By adding the fixing plate 40, the movement 10 is attached to the edge. It can be easily attached to the member 23.
Further, when the movement 10 is directly attached to the edge member 23, it is difficult to arrange a packing for ensuring waterproofness between the opening of the one-piece body 21 and the edge member 23, and the shape of the packing is changed to the side surface of the movement 10. However, it is difficult to attach the movement 10 to the edge member 23 by adding the fixing plate 40 as in the present invention. Can be eliminated.
Further, since the fixing plate 40 is made of a magnetically resistant material, it is possible to obtain magnetic resistance with respect to the battery 13 and a coil of a stepping motor provided inside the movement 10, and the one-piece body 21 needs to be made of a magnetically resistant material. Disappear. Thereby, cost can be reduced.

(4) Since the fixing plate 40 is attached to the edge member 23 via the parting line 15 provided on the inner peripheral side of the edge member 23, the engaging portion (the edge member 23) between the edge member 23 and the one-piece body 21 is provided. The fixing plate 40 can be easily attached to the edge member 23 without interfering with the rib 233).

(5) Further, the fixing plate 40 and the edge member 23 are substantially annular, and the notch 43 is formed in the fixing plate 40 according to the interval between the screws 421 for fixing the fixing plate 40 and the edge member 23. It is possible to quickly grasp the amount of displacement between the hole of the fixing plate 40 through which the screw 421 is inserted and the screw 421 hole of the edge member 23. This improves assembly productivity.

(6) With respect to the crown 30, the winding stem 14 and the main body 31 are screwed together, and the winding stem 14 can be rotated with respect to the main body 31 from the outside of the exterior case 20 through the hole 313 formed in the main body 31. Therefore, the crown 30 can be removed from the one-piece trunk 21, and the timepiece 1 can be easily disassembled into the movement 10 provided with the winding stem 14 and the outer case 20.
That is, in the timepiece 1 having a one-piece structure, the crown 30 and the winding stem 14 can be disassembled from the outside of the one-piece body 21, and the movement 10 is attached to the edge member 23. The disassembling work in is extremely easy and the maintainability can be further improved.

(7) Since the crown 30 and the winding stem 14 can be disassembled from the outside of the one-piece body 21, a conventional setting lever or a button for pressing the setting lever can be dispensed with. As a result, the same movement 10 can be used for both the one-piece structure timepiece 1 and the one-piece structure structure including the back cover and the trunk, and the model development of the timepiece 1 can be promoted by the common movement.

(8) Since the setting lever disposed in the vicinity of the opening 210 of the one-piece body 21 is not necessary, the size of the dial 11 can be increased.

(9) Furthermore, since the crown 30 includes the shaft member 32 that penetrates the main body 31 and engages the winding stem 14, when the shaft member 32 is rotated, the winding stem 14 rotates with respect to the main body 31. The main body 31 is detached from the winding stem 14. Since the shaft member 32 is provided in this way, it is not necessary to search the end portion of the winding stem 14 with a jig or the like from the outside of the one-piece body 21 through the hole 313, and the handleability can be improved.

(10) Since the hole 313 is blocked by the shaft member 32 and the packing 321A, water can be prevented from entering through the pipe 211A and the inside of the exterior case 20 can be made watertight.

(11) Since the engaged portion 321 is formed at the end of the shaft member 32 opposite to the winding stem 14, a simple jig is engaged with the engaged portion 321, and the shaft The member 32 can be rotated. That is, the jig used for removing the crown 30 may be a simple general-purpose jig, and a special dedicated jig such as a jig that penetrates the main body 31 and engages the end of the winding stem 14 can be eliminated.

(12) Since the main body 31 and the shaft member 32 are formed with the stepped portion 312A and the stepped portion 323 that engage with each other, the main body 31 and the shaft member 32 can be integrally extracted from the one-piece body 21, It can be handled easily.

  The present invention is not limited to the above-described embodiments, and includes modifications as described below.

FIG. 7 shows a watch crown 50 according to a modification of the present invention. The crown 50 includes a main body 31 that is substantially the same as the crown 30 (FIG. 3) of the above embodiment, but the shaft member 32 is not inserted into the hole 313 of the main body 31 as in the above embodiment. For this reason, the engaged portion 141 at the end of the winding stem 14 is opened to the outside through the hole 313. The hole 313 is detachably provided with a cap 53 that keeps the inside of the one-piece body 21 watertight.
In such a configuration, a jig (not shown) that can be engaged with the engaged portion 141 of the winding stem 14 is used. When the winding stem 14 is rotated with respect to the crown main body 31 by this jig, the winding stem 14 and the main body 31 are disassembled.
Also according to this modification, there are substantially the same effects as those described in the above embodiment.

  In the above embodiment, only an electronic timepiece provided with a battery has been exemplified, but the present invention is not limited thereto, and the present invention can also be applied to a mechanical timepiece, a mechanical electronic timepiece, a solar power generation timepiece and the like that do not have a built-in battery. Watch maintenance is easy.

Although the best configuration for carrying out the present invention has been specifically described above, the present invention is not limited to this. That is, the invention has been illustrated and described primarily with respect to particular embodiments, but may be configured for the above-described embodiments without departing from the scope and spirit of the invention. Various modifications and improvements can be made by those skilled in the art in terms of materials, quantity, and other detailed configurations.
The description limiting the shape, material, etc. disclosed above is an example for easy understanding of the present invention, and does not limit the present invention. The description by the name of the member which removes a part or all of the limitation is included in the present invention.

The side sectional view of the timepiece of the one piece structure in the embodiment of the present invention. The perspective view which shows the state from which the one-piece trunk | drum was removed in the timepiece of the said embodiment. The side sectional view of the crown in the above-mentioned embodiment. The sectional side view which decomposed | disassembled the crown in the said embodiment. (A) is a VA arrow line view in FIG. 3, (B) is a VB arrow line view of FIG. FIG. 4 is a side cross-sectional view showing an exploded timepiece according to the embodiment. The side sectional view of the timepiece in the modification of the present invention. The side cross section of the timepiece of the one-piece structure in a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Clock, 10 ... Movement (timekeeping part), 11 ... Dial (time information display part), 12 ... Pointer (time information display part), 13 ... Battery, 14 ... * Winding stem, 15 ... parting, 20 ... exterior case, 21 ... one piece trunk, 30, 50 ... crown, 31 ... main body (crown main body), 32 ... shaft member , 40 ... fixing plate (fixing member), 43 ... notch, 141 ... engaged portion (end of winding stem), 142 ... male screw, 210 ... opening, 211 ... -Body part, 212 ... Bottom part, 213 ... Middle frame, 312B ... Female screw, 313 ... Hole, 322 ... Groove (engagement part), 421 ... Screw, A ...・ Axial direction.

Claims (6)

A movement having a timekeeping section, a timekeeping information display section for displaying information timed by the timekeeping section, and an outer case for housing the movement,
The exterior case includes a body part having an opening into which the movement is inserted, and a one-piece body formed integrally with a bottom part opposite to the opening in the body part, a cover glass provided in the opening, An edge member that holds the periphery of the cover glass,
The movement is attached to the edge member ;
The movement is provided with a winding stem that protrudes from the inside of the movement to the outside and is stored inside the one-piece body.
The one-piece body is provided with a crown connected to the winding stem,
The crown has a crown body that is provided over the inside and outside of the one-piece body and is rotated about the winding stem axis and screwed into the winding stem.
The crown main body is configured to be engageable from the outside of the exterior case with respect to an end of the winding stem on the side of the crown main body, and the crown is connected to the crown by the engagement with the winding stem. A timepiece configured to be rotatable with respect to the main body. A movement having a timekeeping section, a timekeeping information display section for displaying information timed by the timekeeping section, and an outer case for housing the movement,
The exterior case includes a body part having an opening into which the movement is inserted, and a one-piece body formed integrally with a bottom part opposite to the opening in the body part, a cover glass provided in the opening, An edge member that holds the periphery of the cover glass,
The movement is attached to the edge member ;
The movement is provided with a winding stem that protrudes from the inside of the movement to the outside and is stored inside the one-piece body.
The one-piece body is provided with a crown connected to the winding stem,
The crown is provided between the inside and the outside of the one-piece cylinder, is rotated around the winding stem axis and is screwed into the winding stem, and the crown body is connected to the winding stem. A shaft member penetrating along the axial direction,
The shaft member has an engaging portion engageable with an end portion of the winding stem, and the engaging portion is configured to be able to rotate the winding stem with respect to the crown main body. To watch. The timepiece according to claim 1 or 2 ,
The movement has a battery as a driving source on a back surface side opposite to the edge member. The timepiece according to any one of claims 1 to 3 ,
An inner frame provided around the movement;
A timepiece comprising: a fixing member disposed between the middle frame and an inner peripheral surface of the one-piece body, and fixing the movement to the edge member via the middle frame. The timepiece according to claim 4 ,
The timepiece, wherein the fixing member is fixed to the edge member through a parting provided on an inner peripheral side of the edge member. The timepiece according to claim 4 or 5 ,
The fixing member has a substantially annular shape, and is fixed with screws to the edge member or the parting at equal intervals at a plurality of locations in the radial direction.
The winding stem is disposed in a part of the fixing member, and a notch is formed in accordance with an angle formed by adjacent screws of the screws with respect to a circle center of the fixing member. A watch characterized by

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