WO2006090694A1 - 指針表示式時計 - Google Patents
指針表示式時計 Download PDFInfo
- Publication number
- WO2006090694A1 WO2006090694A1 PCT/JP2006/303043 JP2006303043W WO2006090694A1 WO 2006090694 A1 WO2006090694 A1 WO 2006090694A1 JP 2006303043 W JP2006303043 W JP 2006303043W WO 2006090694 A1 WO2006090694 A1 WO 2006090694A1
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- WO
- WIPO (PCT)
- Prior art keywords
- needle seat
- convex portion
- display type
- pointer display
- pointer
- Prior art date
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Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B19/00—Indicating the time by visual means
- G04B19/02—Back-gearing arrangements between gear train and hands
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B13/00—Gearwork
- G04B13/02—Wheels; Pinions; Spindles; Pivots
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B19/00—Indicating the time by visual means
- G04B19/04—Hands; Discs with a single mark or the like
- G04B19/044—Mounting and setting of the hands on the axle
Definitions
- the present invention relates to a pointer display timepiece, and in particular, by providing a restricting member for restricting movement of the needle seat in the axial direction on a part of the shaft portion of the hour wheel, the needle seat is detached from the shaft portion. It relates to a pointer display type clock.
- FIG. 9 is a schematic cross-sectional view of the main part for explaining the timepiece movement that works on the first conventional example.
- the watch movement 100 is composed of a resin-made hour wheel 110 in which a gear part 111 and a shaft part 112 are formed, and a dial plate 130 inserted into the shaft part 112 and attached to a dial plate 130.
- the gear portion 111 is configured to include a needle seat 120 that biases the gear portion 111 toward the base plate 140 to prevent the shaft portion 112 from tilting (see, for example, Patent Document 1).
- the timepiece movement 100 has an hour hand attached to the shaft portion 112 of the hour wheel 110, a minute hand attached to the second wheel 160, and a second hand attached to the fourth wheel 150.
- FIG. 10 is a schematic diagram for explaining the needle seat of the timepiece movement that is effective in the first conventional example, in which (a) is a plan view and (b) is an XX cross-sectional view. .
- the needle seat 120 has a structure in which an annular flat plate made of an elastic body such as metal is curved with an arbitrary straight-line portion 121 as a bottom.
- the needle seat 120 is in contact with the gear portion 111 so that the outermost position is the outermost position.
- the peripheral edge 122 abuts on the dial 130.
- the gear portion 111 is urged toward the main plate 140 by the restoring force when the outer peripheral edge portion 122 is pressed by the dial 130.
- FIG. 11 is a schematic cross-sectional view for explaining a state in which the needle seat is inserted into the shaft portion in the timepiece movement that works according to the first conventional example.
- the needle seat 120 is inserted into the shaft portion 112.
- the inner diameter di of the circular hole 123 of the needle seat 120 is larger than the outer diameter D of the shaft ! / ⁇ , so it is inserted into the gold seat 120 ⁇ or ⁇ 112 ⁇ .
- the gear portion 111 is pressed against the base plate 140 by the restoring force of the needle seat 120, and the inclination of the shaft portion 112 can be prevented. Further, it is possible to prevent the hour hand (not shown) attached to the tip of the shaft portion 112 from coming into contact with the dial or the minute hand, and to reduce the thickness of the timepiece.
- FIGS. 12A and 12B are schematic views of a main part for explaining a timepiece movement that works according to the second conventional example.
- FIG. 12A is a plan view and
- FIG. 12B is a side view.
- the watch movement 200 is composed of a resin-made cylindrical wheel 210 having a projecting axle portion 212 and a projection provided on the inner peripheral portion of the central hole 221 that holds and fixes the axle portion 212.
- the needle seat 220 having the portion 222 is provided (for example, see Patent Document 2). In this way, it is possible to avoid a problem that occurs when the needle seat 220 is detached from the axle section 212 in the conveying process or the assembling process.
- the needle seat 220 can prevent a pointer (not shown) attached to the tip of the hour wheel 210 from being tilted, and the watch can be made thin.
- Patent Document 1 Japanese Patent Laid-Open No. 2001-74857
- Patent Document 2 Japanese Patent Laid-Open No. 2002-207086
- the hour hand (not shown) is mounted. Since the tip of the shaft 112 to be inserted was scratched, there was a problem when the fixing force of the hour hand decreased.
- the needle seat 120 is attached with the inner diameter d of the circular hole 123 smaller than the outer diameter D of the shaft portion 112 and an interference fit, the warping up (curved state) of the needle seat 120 is inhibited, There was a problem that the spring force (restoring force) of the needle seat 120 varied, and the axial movement of the hour wheel 110 could not be suppressed stably, and the needle swing could not be reduced.
- the present invention has been proposed to solve the problems of the conventional techniques as described above. It is possible to prevent the needle seat from falling off before attaching the dial, to suppress the generation of foreign matter, and to securely fix the pointer.Furthermore, the spring force of the needle seat varies and the needle shakes.
- the purpose is to provide a pointer display type watch that can avoid problems such as being unable to alleviate.
- a pointer display type timepiece of the present invention includes a hour wheel having a shaft portion and a gear portion for attaching a pointer, and a hand having a hole portion through which the shaft portion of the hour wheel passes.
- a pointer display type timepiece having a seat is provided with a restricting member for restricting movement of the needle seat in the axial direction on a part of the hour wheel.
- the needle seat is a spring washer used for a wristwatch that prevents the tilting of the shaft portion by urging the wheel portion of the hour wheel to the main plate side when it is inserted into the shaft portion and the dial is attached.
- the restriction member is one or more protrusions protruding from the shaft portion in an outer peripheral direction.
- a needle seat can be controlled efficiently using a convex part.
- the convex portion is provided from the surface of the gear portion of the hour wheel to the axially upper portion of the shaft portion, and the convex portion further includes a hole portion of the needle seat. It is configured to engage.
- the present invention has a configuration in which the convex portion is provided below the pointer mounting position of the shaft portion.
- the convex portion does not interfere with the attachment of the pointer, and it is possible to avoid the problem that the pointer rubs against the regulating member to generate foreign matter.
- the present invention is configured such that a tapered portion is formed on an upper portion of the convex portion.
- an inner diameter of the hole portion of the needle seat is greater than an outer shape of the pointer attaching portion of the shaft portion. And the diameter is smaller than the diameter of the imaginary circle of the convex portion. In this way, the needle seat can be easily attached to the hour wheel, and the needle seat can be securely fixed by the restricting member.
- the present invention has a configuration in which three or more odd-numbered convex portions are provided and these are arranged at equal intervals.
- the restriction members are odd numbers of three or more and are arranged at equal intervals, the restriction members are not provided at positions opposed to each other by 180 degrees, so that the needle seat is incorporated into the hour wheel. To make it easier. Furthermore, since it does not hinder the needle seat from warping, it is possible to reduce variations in the spring force of the needle seat and to suppress needle movement by suppressing axial movement of the hour wheel.
- the present invention is configured such that the convex portion is formed at a position spaced from the upper surface of the gear portion of the shaft portion.
- the needle seat is prevented from warping up, so that variation in the spring force of the needle seat can be suppressed.
- the needle seat is configured so that an inner diameter of the hole portion of the needle seat is larger than an outer shape of the shaft portion and smaller than a diameter of a virtual circle of the convex portion. Get over the convex part
- the configuration is such that the shaft portion between the convex portion and the gear portion is loosely engaged.
- the needle seat is loosely engaged with the shaft and does not hinder the needle seat from rising, so there is no variation in the spring force of the needle seat and the axial movement of the hour wheel is reliably suppressed. As a result, needle shake can be reduced.
- the convex portion includes a first convex portion protruding from the surface of the shaft portion and a second convex portion protruding further from the surface force of the first convex portion.
- the gap between the shaft portion not including the convex portion and the hole portion of the needle seat can be increased, so the needle seat can be smoothly inserted into the shaft portion. Can do.
- the present invention is configured such that the first convex portion and the second convex portion are provided below the pointer mounting position of the shaft portion.
- the present invention is configured such that a tapered portion is formed on the first convex portion and the Z or the second convex portion.
- a slope portion is provided below the second convex portion.
- the present invention is configured such that the inner diameter of the hole portion of the needle seat is larger than the diameter of the virtual circle of the first convex portion and smaller than the diameter of the virtual circle of the second convex portion. is there.
- the needle seat can be easily attached to the hour wheel, and the needle seat can be securely fixed by the restricting member.
- the present invention has a configuration in which the odd number of three or more of the first convex portions and the second convex portions are provided, and these are arranged at equal intervals.
- the restriction members are odd numbers of three or more and are arranged at equal intervals, the restriction members are not provided at positions opposed to each other by 180 degrees, so that the needle seat is incorporated into the hour wheel. To make it easier. Furthermore, since it does not hinder the needle seat from warping, it is possible to reduce variations in the spring force of the needle seat and to suppress needle movement by suppressing axial movement of the hour wheel.
- the restricting member is a hook provided on the upper surface of the gear portion of the hour wheel, and a part of the needle seat is locked by the hook.
- the needle seat can be easily attached to the hour wheel, and the needle seat can be reliably fixed by the restricting member.
- the present invention has a configuration in which the hook is provided in at least two locations facing each other across the shaft portion.
- a needle seat can be fixed only by latching with a hook in at least two places which oppose on both sides of a shaft part.
- the present invention is configured such that a part of the outer periphery of the needle seat is locked to the hook.
- the present invention is configured such that the needle seat is bent with an arbitrary diameter line portion as a bottom portion, and a position where the bottom portion and the outer periphery intersect with each other is locked with the hook.
- the needle seat can have a large springiness, and Since the needle seat can be fixed at the bottom of the curved surface, the needle seat is also firmly fixed. Further, since the needle seat is not hindered from warping, variation in the spring force of the needle seat can be reduced, and movement of the hour wheel in the axial direction can be suppressed to reduce needle deflection.
- the restriction member is an adhesive member provided on the upper surface of the gear portion of the hour wheel, and the needle seat is fixed to the adhesive member.
- the needle seat is attached to the hour wheel and can be fixed simply by pressing it against the adhesive member.
- the present invention has a configuration in which the adhesive member is provided in at least two locations facing each other across the shaft portion.
- a needle seat can be fixed only by the adhesive force with the adhesion member in at least two places which oppose on both sides of a shaft.
- the present invention is configured such that the needle seat is curved with an arbitrary diameter line portion as a bottom, and two portions of the bottom are brought into contact with the adhesive member.
- the needle seat can have a large springiness, and the needle seat can be fixed at the bottom of the curved surface. It becomes. Further, since the needle seat is not hindered from warping, variation in the spring force of the needle seat can be reduced, and movement of the hour wheel in the axial direction can be suppressed to reduce needle deflection.
- the hour wheel is made of resin, and in this way, the restriction member can be easily processed in the hour wheel.
- the needle seat is made of metal.
- the needle seat can have sufficient spring properties. Even if the environment such as temperature and humidity changes, there is little variation in springiness. For example, if the needle seat is made of greaves, the spring force may be reduced and may not return to its original state, and such problems can be avoided.
- the pointer display timepiece of the present invention includes an hour wheel having a shaft portion and a gear portion for attaching the hour hand, and a hole portion through which the shaft portion of the hour wheel passes.
- a pointer display type timepiece having a needle seat is provided with a regulating member made of a convex portion for regulating movement of the needle seat in the axial direction on a part of the hour wheel.
- the convex portion is formed so that the lower surface force of the second convex portion is also formed on the gear portion surface.
- the convex part is not included! / Since the gap between the shaft and the hole of the needle seat can be increased, it is possible to insert the needle seat smoothly into the shaft. it can.
- the present invention has a configuration in which the inner diameter of the hole portion of the needle seat is larger than the diameter of the virtual circle of the first convex portion and smaller than the diameter of the virtual circle of the second convex portion. is there.
- the needle seat can be easily attached to the hour wheel, and the needle seat can be securely fixed by the restricting member.
- the present invention is configured such that a tapered portion is formed on the first convex portion and the Z or the second convex portion, and a slope portion is formed on the lower portion of the second convex portion.
- the needle seat By rubbing in this way, the needle seat can be smoothly inserted into the convex portion, and the needle seat can be easily attached and detached. In addition, the moldability for the molding die can be improved.
- the needle seat is prevented from falling off before attaching the dial plate, the generation of foreign matter is suppressed, and the pointer that does not damage the pointer mounting position is reliably secured.
- it is possible to avoid problems such as variations in the spring force of the needle seat and the inability to reduce needle deflection.
- FIG. 1 is a schematic view of a main part of a pointer display type timepiece that works on the first embodiment of the present invention, (a) is a plan view and (b) is a cross-sectional view taken along line AA. Yes.
- FIG. 2 is a schematic enlarged plan view for explaining the hand seat of the pointer display type timepiece according to the first embodiment of the present invention.
- FIG. 3 is a schematic view of a main part of a pointer display type watch that is applied to an application example of the first embodiment of the present invention, where (a) is a plan view and (b) is a cross-sectional view along BB. Yes.
- FIG. 4 is a schematic view of the main part of a pointer display type timepiece that works on the second embodiment of the present invention, (a) Is a plan view, and (b) is a CC cross-sectional view.
- FIG. 5 is a schematic view of a main part of a pointer display type timepiece according to the third embodiment of the present invention, where (a) is a plan view and (b) is a DD cross-sectional view.
- FIG. 6 is a schematic view of a main part of a pointer display type timepiece that works on the fourth embodiment of the present invention, where (a) shows a plan view and (b) shows an EE cross-sectional view.
- FIG. 7 is a schematic view of a main part of a pointer display type timepiece according to a fifth embodiment of the present invention, where (a) is a plan view and (b) is a cross-sectional view taken along line FF.
- FIG. 8 is a schematic enlarged plan view for explaining the relationship between the convex portion and the circular hole of the needle seat of the pointer display type timepiece working on the fifth embodiment of the present invention.
- FIG. 10 is a schematic diagram for explaining a hand seat of a timepiece movement that is effective in the first conventional example, where (a) shows a plan view and (b) shows an XX cross-sectional view.
- FIG. 11 is a schematic cross-sectional view for explaining a state in which the needle seat is inserted into the shaft portion in the timepiece movement that is effective in the first conventional example.
- FIG. 12 is a schematic diagram of a main part for explaining a timepiece movement that works according to the second conventional example, wherein (a) is a plan view and (b) is a side view.
- FIG. 1 is a schematic view of the main part of a pointer display type timepiece that works on the first embodiment of the present invention
- the pointer display timepiece of this embodiment is compared with the pointer display timepiece of the first conventional example on a part of the hour wheel 110 (in this embodiment, the root portion 113 of the shaft portion 112), The difference is that a convex portion 11 is provided as a regulating member.
- the other components are almost the same as the first conventional example.
- FIG. 1 the same components as those in FIGS. The detailed description is omitted.
- the convex portion 11 has a substantially semicircular shape projecting from the shaft portion 112 in the outer peripheral direction, and engages with the circular hole 123 of the needle seat 120.
- “engagement” means that the needle seat 120 is fitted into the convex portion 11 so that the needle seat 120 does not easily come off from the shaft portion 112, and is usually fitted in an interference fit or clearance fit.
- the convex portion 11 functions as a restricting member for restricting movement in the axial direction, and the needle seat 1 can be simply engaged with the circular hole 123 having a normal (conventional) needle seat 120 shape. The movement of the 20 in the axial direction can be restricted, and the needle seat 120 can be prevented from falling off from the hour wheel 110.
- the needle seat 120 can be smoothly fitted by forming the tapered surface 13 as the tapered portion on the upper portion of the convex portion 11 and rubbing in this way. Further, by smoothly inserting the needle seat 120, it is possible to suppress the generation of foreign matters such as burrs and shavings.
- the hour wheel 110 is made of resin, and in this way, even the hour wheel 110 having the convex portion 11 can be accurately and easily covered.
- the convex part 11 of this embodiment is made into the cylindrical shape divided into two, it is not restricted to this shape.
- the height of the convex portion 11 is higher than necessary as long as it is necessary to engage the needle seat 120, for example, several times (2 to 6 times) the thickness of the needle seat 120. By making it not too high, the generation of foreign matter can be suppressed.
- the convex portion 11 is provided below the pointer mounting position of the shaft portion 112 (usually, the tip portion of the shaft portion 112), that is, at a position where it does not interfere with the pointer (not shown). When attaching the pointer, it is possible to avoid the problem that the pointer rubs against the convex portion 11 to generate foreign matter. Further, in the present embodiment, the convex portion 11 is provided from the surface of the gear portion 111 of the hour wheel 110 to the axially upper portion of the shaft portion 112, and the shaft portion of the hour wheel 110 in which the needle seat 120 is normally positioned. At the root portion 113 of 112, the needle seat 120 can be fixed.
- the convex portion 11 is provided on the surface side of the gear portion 111 from the axial center 14 of the shaft portion 112, when the hour hand (not shown) is assembled into the hour wheel 110, the convex portion 11 is attached to the hour hand.
- the hour hand that does not get in the way can be securely and easily attached to the hour wheel.
- the needle seat 120 When 1 2 1 engages with the convex part 11, the needle seat 120 is stretched in the direction of the diameter line part 121,
- the warpage (curved state) of the needle seat 120 is hindered, and the axial movement of the hour wheel 110 cannot be stably suppressed, and the needle shake cannot be reduced. That is, in the present embodiment, by arranging three convex portions 11 at equal intervals in the circumferential direction of the shaft portion 112, the warping of the needle seat is maintained almost normal, and the variation in the spring force of the needle seat 120 is reduced. This can reduce the movement of the hour wheel 110 in the axial direction, thereby reducing needle shake. Also, when assembling the needle seat 120, the two points D and D do not engage with the convex portion 11 at the same time.
- the needle seat 120 into the hour wheel 110.
- the three convex portions 11 are arranged. However, three or more odd numbers may be provided, and these may be arranged at equal intervals.
- FIG. 2 is a schematic enlarged plan view for explaining the hand seat of the pointer display type timepiece that works on the first embodiment of the present invention.
- the needle seat 120 is larger than the outer diameter of the inner diameter force shaft portion 112 of the circular hole 123, and from the diameter of the virtual circle 15 passing through the position where the three convex portions 11 and the circular hole 123 abut.
- the structure is also small. In this way, the needle seat 120 can be easily attached to the hour wheel 110, and the needle seat 120 can be reliably fixed by the convex portion 11.
- the pointer mounting portion is the tip of the substantially cylindrical shaft portion 112
- the inner diameter of the circular hole 123 may be larger than the outer shape of the pointer mounting portion of the shaft portion 112.
- the needle seat 120 since the inner diameter of the circular hole 123 is larger than the outer diameter of the shaft portion 112, the needle seat 120 does not cause a problem of scratching the pointer mounting position of the shaft portion 112 when inserted.
- the hour hand can be fixed with a fixing force of.
- the needle seat 120 engaged by the convex portion 11 coincides with the center point (not shown) of the hour wheel 110, the needle seat 120 is eccentric with respect to the shaft portion 112. Or position Since the outer peripheral edge 122 and the dial 130 are slid in a stable state, the risk of occurrence of foreign matter such as wear powder can be reduced.
- the needle seat 120 is made of metal, so that the needle seat 120 can have a sufficient spring property. Further, the metal needle seat 120 has an advantage that even if the environment such as temperature and humidity changes, the variation in springiness is small. Incidentally, if the needle seat 120 is made of resin, for example, the spring force may be reduced and may not return to its original state, and such a problem can be avoided.
- the needle seat 120 is prevented from dropping before the dial 130 is attached, the generation of foreign matter is suppressed, and the pointer mounting position is not damaged.
- the pointer can be securely fixed, and further, it is possible to avoid the problem that the spring force of the needle seat 120 varies and the needle shake cannot be reduced.
- the convex portions 11 as the restricting members are provided at three locations.
- the present invention is not limited to this configuration.
- a configuration in which one convex portion 11 is provided may be adopted.
- the convex portion 11 and the shaft portion 112 on the side facing the convex portion 11 engage with the circular hole 123 of the needle seat 120, and the needle seat 120 can be prevented from falling off with a simple configuration.
- the needle seat 120 when the needle seat 120 is inserted into the shaft portion 112, the needle seat 120 can be smoothly inserted until the needle seat 120 comes into contact with the convex portion 11, so that the generation of foreign matter is suppressed and the pointer mounting position is damaged. It is possible to securely fix the guideline without giving.
- FIG. 4A and 4B are schematic views of the main part of the pointer display timepiece according to the second embodiment of the present invention.
- FIG. 4A is a plan view and
- FIG. 4B is a cross-sectional view taken along the line CC.
- the pointer display type timepiece of the present embodiment has a pair of hooks 16 for locking the needle seat 120 on the upper surface of the gear portion 111 of the hour wheel 110 as compared with the pointer display type timepiece of the first conventional example.
- the other components are almost the same as those in the first conventional example. Therefore, in FIG. 4, the same components as those in FIGS. 9, 10, and 11 are denoted by the same reference numerals, and detailed description thereof is omitted.
- the hook 16 is a restricting member for restricting the movement of the needle seat 120 in the axial direction. 20 diameter line part The outer periphery of 121 direction is locked. Thus, by using the hook 16 as the restricting member, the needle seat 120 can be easily mounted on the hour wheel 110 and the needle seat 120 can be securely fixed by the hook 16. it can.
- the hook 16 is provided at two locations facing each other with the shaft portion 112 interposed therebetween. In this way, the needle seat 120 can be fixed by being locked to the two hooks 16.
- the needle seat 120 has a structure in which an arbitrary diameter line portion 121 is curved as a bottom portion, and a position where the bottom portion and the outer periphery intersect with each other is locked by a hook 16.
- the needle seat 120 can have a large spring property, and the needle seat 120 can be fixed at the bottom of the curved surface. Fixing will also be solid.
- the warpage of the needle seat 120 is not hindered, the variation of the spring force of the needle seat 120 can be reduced, and the axial movement of the hour wheel 110 can be suppressed to reduce the needle runout.
- the hook seat 16 is provided on the upper surface of the gear portion 111 of the hour wheel 110, so that the needle seat 120 can be prevented from falling off.
- FIGS. 5A and 5B are schematic views of the main part of a pointer display type timepiece according to the third embodiment of the present invention.
- FIG. 5A is a plan view
- FIG. 5B is a plan view
- the pointer display type timepiece of the present embodiment is different from the pointer display type clock of the second embodiment in that an adhesive member 17 is used instead of the hook 16.
- Other constituent elements are substantially the same as those in the second embodiment.
- FIG. 5 the same components as those in FIG. 4 are denoted by the same reference numerals, and detailed description thereof is omitted.
- the adhesive member 17 is a regulating member for regulating the movement of the needle seat 120 in the axial direction.
- the diameter line portion 121 of the seat 120 is fixed to the upper surface of the gear portion 111.
- the needle seat 120 can be easily fixed simply by pressing the needle seat 120 against the adhesive member 17 provided on the upper surface of the gear portion 111 of the hour wheel 110. can do.
- the adhesive member 17 is provided at two locations facing each other with the shaft portion 112 interposed therebetween. In this manner, the needle seat is formed only by the adhesive force with the adhesive member 17 at the two locations facing each other with the shaft portion 112 interposed therebetween. 120 can be fixed.
- the needle seat 120 has a curved structure with an arbitrary diameter line portion 121 as a bottom portion, and two portions of the bottom portion facing each other with the shaft portion 112 interposed therebetween are brought into contact with the adhesive member 17. It is fixed. In this way, if the needle seat 120 is curved, the needle seat 120 can have a large spring property, and the needle seat 120 can be fixed at the bottom of the curved surface. Fixing will also be solid. Furthermore, since the needle seat 120 is not hindered from warping, variation in the spring force of the needle seat 120 can be reduced, and movement of the hour wheel 110 in the axial direction can be suppressed to reduce needle deflection.
- the needle member 120 can be prevented from falling off by providing the adhesive member 17 on the upper surface of the gear portion 111 of the hour wheel 110.
- FIGS. 6A and 6B are schematic views of the main part of the pointer display type timepiece according to the fourth embodiment of the present invention.
- FIG. 6A is a plan view and FIG.
- the pointer display type timepiece of the present embodiment is different from the pointer display type clock of the first embodiment in that the convex part 1 ⁇ is the upper surface of the gear part 111 of the shaft part 112 instead of the convex part 11. It is different in that it is formed at a position away from. Other components are almost the same as those in the first embodiment.
- the convex portion 1 ⁇ protrudes from the shaft portion 112 in the outer circumferential direction, and is provided in three at equal intervals in the circumferential direction of the shaft portion 112. Further, since the convex portion 1 ⁇ is formed at a position where the upper surface force of the gear portion 111 is also separated, the convex portion 1 ⁇ does not hinder the needle seat 120 from rising, and thus the variation in the spring force of the needle seat 120 is suppressed.
- the convex portion 1 ⁇ is provided with a tapered surface 13 at an end portion corresponding to the longitudinal direction of the shaft portion 112 (in the upper end portion in the present embodiment). By rubbing in this way, the needle seat 120 can be smoothly inserted into the convex portion 1 ⁇ .
- the hour wheel 110 has a diameter force of a virtual circle (not shown) in contact with the three convex portions 1 ⁇ , which is larger than the inner diameter of the circular hole 12 3, and the diameter of the shaft portion 112 is larger than the circular hole 123.
- the configuration is smaller than the inner diameter. That is, the needle seat 120 overcomes the convex portion 1 ⁇ and is loosely coupled between the convex portion 1 ⁇ and the gear portion 111. In this way, the needle seat 120 is loosely engaged with the shaft portion 112 and does not hinder the warping of the needle seat 120. Therefore, the spring force of the needle seat 120 does not vary, and the axial direction of the hour wheel 110 does not occur. It is possible to reduce the needle shake by reliably suppressing the movement.
- the needle seat 120 is loosely engaged with the shaft portion 112 and does not hinder the warp of the needle seat 120, so that the spring force of the needle seat 120 does not vary. Therefore, the axial movement of the hour wheel 110 can be reliably suppressed to reduce needle shake.
- FIGS. 7A and 7B are schematic views of the main part of the pointer display type timepiece according to the fifth embodiment of the present invention.
- FIG. 7A is a plan view and FIG.
- the pointer display timepiece of the present embodiment is provided with a first protrusion 11a and a second protrusion l ib instead of the protrusion 11 as compared with the pointer display type clock of the first embodiment.
- the points are different.
- Other components are almost the same as those in the first embodiment.
- FIG. 7 the same components as those in FIG. 1 are denoted by the same reference numerals, and detailed description thereof is omitted.
- the first convex portion 11a protrudes from the shaft portion 112a in the outer peripheral direction, and has a structure substantially similar to the convex portion 11 of the first embodiment. Further, the second convex portion l ib further protrudes from the surface of the first convex portion 11a and is provided apart from the gear portion 111. In this embodiment, The first convex portion 11a is formed from the lower surface of the second convex portion l ib to the surface of the gear portion 111, thereby reducing the projection amount of the second convex portion l ib with respect to the first convex portion 11a.
- the second convex portion l ib can be manufactured using a molding die, that is, the mold can be easily and reliably released, and the manufacturing cost can be reduced.
- the tapered surfaces 13 and 13a are respectively provided as tapered portions on the upper portions of the first convex portion 11a and the second convex portion l ib.
- the needle seat 120 can be smoothly inserted into the first convex portion 11a and the second convex portion ib, and the needle seat 120 can be easily attached.
- a slope portion 13b may be provided below the second convex portion l ib. In this way, when the hour wheel 110 is injection-molded by the slope portion 13b, the completed hour wheel 110 can be easily released from the molding die.
- the convex part a two-stage structure of the first convex part 11a and the second convex part l ib, the height of the second convex part l ib relative to the first convex part 11a can be reduced, and molding is performed.
- the mold can be easily removed and the moldability can be improved.
- Fig. 8 is a schematic enlarged plan view for explaining the relationship between the convex portion and the circular hole of the needle seat in the pointer display timepiece according to the fifth embodiment of the present invention.
- the hour wheel 110 has a virtual circle 15a whose diameter of a virtual circle 15b in contact with the three second convex portions l ib is larger than the inner diameter of the circular hole 123 and in contact with the three first convex portions 11a.
- the diameter is smaller than the inner diameter of the 1S circular hole 123. That is, the needle seat 120 climbs over the second convex portion 11 b and loosely engages with the first convex portion 11 a between the second convex portion l ib and the gear portion 111. In this way, the axial position force of the needle seat 120 is restricted between the second convex portion ib and the gear portion 111, and the trouble that the needle seat 120 falls off the hour wheel 110 can be reliably prevented.
- the clearance between the shaft portion 112a not including the convex portions 11a and ribs and the circular hole 123 of the needle seat 120 can be increased, so that the needle seat 120 can be smoothly moved. It can be inserted into the shaft portion 112a.
- the needle seat 120 is engaged with the shaft portion 112a (the first convex portion 11a) and does not hinder the needle seat 120 from being warped.
- the variation in spring force does not occur, and the movement of the hour wheel 110 in the axial direction can be reliably suppressed to reduce needle shake.
- the pointer display type timepiece of the present invention is preferably described with reference to the embodiment.
- the pointer display timepiece according to the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the present invention.
- the convex portion 11 is not formed on the shaft portion 112, but the configuration may be such that the convex portion 11 is formed on the shaft portion 112. Positioning can be performed more reliably.
- the pointer display type timepiece of the present invention is not limited to the pointer display type timepiece that has been assembled.
- it can be effectively applied to a timepiece movement that is being assembled. it can.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Gears, Cams (AREA)
- Electromechanical Clocks (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06714183A EP1852753B1 (en) | 2005-02-22 | 2006-02-21 | Pointer indication type timepiece |
CN2006800057183A CN101167024B (zh) | 2005-02-22 | 2006-02-21 | 指针显示型钟表 |
US11/795,885 US7821877B2 (en) | 2005-02-22 | 2006-02-21 | Pointer indication type timepiece |
JP2007504720A JP4878408B2 (ja) | 2005-02-22 | 2006-02-21 | 指針表示式時計 |
HK08105727.1A HK1110956A1 (en) | 2005-02-22 | 2008-05-23 | Pointer indication type timepiece |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005045706 | 2005-02-22 | ||
JP2005-045706 | 2005-02-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006090694A1 true WO2006090694A1 (ja) | 2006-08-31 |
Family
ID=36927335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/303043 WO2006090694A1 (ja) | 2005-02-22 | 2006-02-21 | 指針表示式時計 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7821877B2 (ja) |
EP (1) | EP1852753B1 (ja) |
JP (1) | JP4878408B2 (ja) |
CN (1) | CN101167024B (ja) |
HK (1) | HK1110956A1 (ja) |
WO (1) | WO2006090694A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020030092A (ja) * | 2018-08-22 | 2020-02-27 | 盛岡セイコー工業株式会社 | 皿ばね、輪列機構、時計用ムーブメント及び時計 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2560057B1 (fr) * | 2011-08-17 | 2014-04-02 | ETA SA Manufacture Horlogère Suisse | Mouvement d'horlogerie à hauteur réduite et à grande réserve de marche |
US9329573B2 (en) * | 2012-02-29 | 2016-05-03 | Eta Sa Manufacture Horlogere Suisse | Below dial hand fitting |
CH707590B1 (fr) * | 2013-02-12 | 2017-08-15 | Eta Sa Mft Horlogère Suisse | Roue d'horlogerie antichoc, notamment de centre. |
CN103840587B (zh) * | 2014-03-07 | 2016-09-28 | 吴中一 | 石英钟、表转子轮 |
JP7407626B2 (ja) * | 2020-03-11 | 2024-01-04 | セイコーウオッチ株式会社 | 時計用歯車、ムーブメント及び時計 |
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- 2006-02-21 WO PCT/JP2006/303043 patent/WO2006090694A1/ja active Application Filing
- 2006-02-21 CN CN2006800057183A patent/CN101167024B/zh active Active
- 2006-02-21 US US11/795,885 patent/US7821877B2/en active Active
- 2006-02-21 JP JP2007504720A patent/JP4878408B2/ja active Active
- 2006-02-21 EP EP06714183A patent/EP1852753B1/en active Active
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2008
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JPH01168893U (ja) * | 1988-05-20 | 1989-11-28 | ||
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JPH04102089U (ja) * | 1991-02-13 | 1992-09-03 | シチズン時計株式会社 | 時計輪列の押エバネ構造 |
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Cited By (1)
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---|---|---|---|---|
JP2020030092A (ja) * | 2018-08-22 | 2020-02-27 | 盛岡セイコー工業株式会社 | 皿ばね、輪列機構、時計用ムーブメント及び時計 |
Also Published As
Publication number | Publication date |
---|---|
EP1852753B1 (en) | 2013-01-02 |
US20090154301A1 (en) | 2009-06-18 |
US7821877B2 (en) | 2010-10-26 |
JP4878408B2 (ja) | 2012-02-15 |
HK1110956A1 (en) | 2008-07-25 |
CN101167024B (zh) | 2010-05-19 |
CN101167024A (zh) | 2008-04-23 |
JPWO2006090694A1 (ja) | 2008-07-24 |
EP1852753A4 (en) | 2010-01-13 |
EP1852753A1 (en) | 2007-11-07 |
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