JP2010038584A - Apparatus for adjusting hand - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for adjusting hands which is excellent in the operability, and prevents an erroneous operation. <P>SOLUTION: In the apparatus 100 for adjusting the hands in a movement 1 of an analog timepiece, the movement includes: a motor 210; a reduction gear mechanism 310 coupled to the motor; hand pipes 410, 420 for mounting the hands; a case body 600 for supporting them. The apparatus for adjusting the hands includes a hand adjusting pinion 110 engaged with a gear 311 coupled to the hand pipes, and rotates the hand pipes by rotating the hand adjusting pinion. A groove 111 into which a rotating tool 120 is inserted and a hole 112 into which an operating element 130 is pressed and coupled are provided on an end face of the hand adjusting pinion. An opening 613 for outwardly exposing the groove and the hole is provided in the case body. The groove and the hole are positioned in the back of the opening distant from a surface of the case body. The hand adjusting pinion is rotated by selectively using the rotating tool and the operating element. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a hand alignment device provided in a movement of an analog timepiece.

The movement for driving the hands of the timepiece is configured such that the pointer pipe is driven by a motor through a speed reduction mechanism. In general, the indicator pipe includes an hour hand pipe for attaching the hour hand and a minute hand pipe for attaching the minute hand, and the power of the motor transmitted to the minute hand pipe is transmitted to the hour hand pipe via the minute wheel. ing. In addition, a needle alignment hook is connected to the minute wheel, and by rotating the needle alignment hook, the display time of the pointer can be corrected from the outside of the movement case. Patent Document 1 discloses this type of needle alignment device. In addition, as described in paragraph [0092] of Patent Document 2, the hand setting device is also provided in a movement of a radio-controlled timepiece that receives a standard time radio wave and corrects its display time.
Japanese Patent Laid-Open No. 9-159772 Japanese Patent Laid-Open No. 2005-189084

  In the case of a radio-controlled timepiece, the position of the pointer pipe is automatically corrected by controlling the motor. Therefore, it is not usually necessary to operate the needle alignment device. The needle alignment device is exclusively used for convenience during manufacture and inspection. That is, when the user operates this by mistake, it is rather conspicuous that accurate time display is hindered. The present invention has been made in view of such circumstances, and an object of the present invention is to provide a needle aligning device that is excellent in operability and achieves prevention of erroneous operation.

  The invention described in claim 1 of the present application is a hand alignment device provided in a movement of an analog timepiece, wherein the movement includes a motor, a speed reduction mechanism connected to the motor, a pointer pipe for attaching a pointer, and A case body for supporting, and the needle alignment device includes a needle alignment pinion that meshes with a gear connected to the pointer pipe, and rotates the needle pipe by rotating the needle alignment pinion. In addition, a groove for inserting a rotary tool and a hole for press-fitting and connecting an operating element are provided on the tip surface of the needle alignment knife, and the groove and the hole are externally provided on the case body. The groove and the hole are located deeper in the opening than the surface of the case body, and the needle alignment can alternatively include the rotary tool and the operating element. for A needle alignment apparatus having the configuration to rotate Te.

  The invention described in claim 2 of the present application is the hand setting device according to claim 1, wherein the movement is a movement of a radio-controlled timepiece.

  According to the present invention, it is possible to obtain a needle alignment device that has excellent operability and achieves prevention of erroneous operation.

  Embodiments of the present invention will be described below with reference to the drawings. The movement 1 of the radio-controlled timepiece of this example shown in FIGS. 1 to 5 is equipped with a plurality of motors 210 and 220, speed reduction mechanisms 310 and 320 comprising gear trains connected to the motors 210 and 220, and hands. The guide pipes 410, 420, and 430, the circuit board 500 provided with a drive circuit for controlling the motors 210 and 220, and the case body 600 that supports them are provided. The guide pipes 410, 420, and 430 are the speed reduction mechanisms 310 and 320. The motor is driven by the motors 210 and 220.

  Specifically, an hour hand pipe 410 for attaching an hour hand, a minute hand pipe 420 for attaching a minute hand, and a second hand pipe 430 for attaching a second hand are provided concentrically. A first speed reduction mechanism 310 connected to the first stepping motor 210 is connected to a minute hand wheel 421 provided at a proximal end portion of the minute hand pipe 420. A second speed reduction mechanism 320 connected to the second stepping motor 220 is connected to a second hand wheel 431 provided at the proximal end portion of the second hand pipe 430. Further, a pinion 422 provided at the proximal end portion of the minute hand pipe 420 is connected to the minute wheel 311, and an hour hand wheel 411 provided at the proximal end portion of the hour hand pipe 410 is a pinion 312 of the minute wheel 311. It is connected with.

  The hour hand pipe 410 and the minute hand pipe 420 are driven to rotate at a predetermined speed by the first stepping motor 210, and the second hand pipe 430 is driven to rotate at a predetermined speed by the second stepping motor.

  Incidentally, reference numeral 700 in the figure denotes a position detecting means comprising a light emitting element 710 and a light receiving element 720. A light transmitting portion 730 that transmits the light of the light emitting element 710 is provided at the main part of the driving member located between the light emitting element 710 and the light receiving element 720. From the detection pattern of the light receiving element 720, each pointer pipe 410, The rotation positions of 420 and 430 are detected.

  In addition, the movement 1 of this example is used for a radio-controlled timepiece that receives a standard time radio wave and corrects its display time. A circuit board 500 is provided with a receiving circuit for controlling the operation.

  The case body 600 is a flat type formed by assembling the first case member 610 on the back side and the second case member 620 on the front side in the thickness direction. Between the first case member 610 and the second case member 620, an intermediate plate 601 on which the motors 210 and 220 are mounted is provided.

  Inside the case body 600 are housed motors 210 and 220, speed reduction mechanisms 310 and 320, proximal ends of pointer pipes 410, 420 and 430, and a needle alignment device 100 which will be described in detail later. Concavities and convexities, bosses, support shafts, and the like for holding the constituent members are formed at the main points of the first case member 610, the second case member 620, and the intermediate plate 601. The distal ends of the indicator pipes 410, 420, and 430 protrude from the second case member 620 toward the front. The first case member 610 and the second case member 620 are screwed together. The circuit board 500 is mounted on the front surface of the second case member 620 by screwing. The circuit board 500 is provided with holes through which the indicator pipes 410, 420, and 430 are inserted.

  The first case member 610 is integrally provided with a mounting portion 611 of the antenna 800 at a portion protruding to the side portion of the second case member 620 when viewed from the front side of the case body 600. The mounting portion 611 has a box shape with an opening on the front side, and a snap 612 for fixing the end of the antenna 800 is provided therein. That is, in the movement 1 of this example, the case body 600 is assembled, the circuit board 500 and the antenna 800 are attached, the lead wires of the antenna 800 are soldered to the circuit board 500, and they are electrically connected to each other. The antenna 800 can be tuned by operating electronic components of a receiving circuit such as a capacitor mounted on the substrate 500.

  In the case of this example, after providing the circuit board 500 and the antenna 800 in this way, a guide mechanism 900 is further provided in front of the circuit board 500. The guide mechanism 900 is provided between the third case member 630 and the circuit board 500 by screwing the third case member 630 to the front surface of the second case member 620. The distal ends of the indicator pipes 410, 420, and 430 pass through the third case member 630.

  Although the specific configuration of the guide mechanism 900 is not particularly limited, in the case of this example, a reference wheel 910 that is arbitrarily rotated by a user with an operating means (not shown) and a time signal wheel that rotates in synchronization with the hour hand pipe 410. 920, a reference cam 930 that follows the hour transmission wheel 920, a plate spring 940 having a predetermined shape that biases the reference cam 930 toward the reference wheel 910, and a reference contact 950 provided on the circuit board 500, The leaf spring 940 is separated from the reference contact 950 in conjunction with the driving of the hour hand pipe 410, and the OFF / ON of the reference contact 950 is switched.

  A hole 911 is provided at a key point of the reference wheel 910, and the reference cam 930 is inserted into the hole 911 of the reference wheel 910 once per rotation, so that the reference wheel 910 is moved toward the reference wheel 910. Move to some extent. When the reference cam 930 moves to the reference wheel 910 side, a predetermined part of the leaf spring 940 comes into contact with the reference contact 950, and the reference contact 950 turns from OFF to ON.

  Further, the tip of the protrusion 931 is provided with a taper in a predetermined direction. The protrusion 931 is inserted into the hole 911 of the reference wheel 910 and then the reference cam 930 is rotated to some extent. Escape from 911. When the protrusion 931 is detached from the hole 911, the leaf spring 940 is separated from the reference contact 950, and the reference contact 950 is turned from ON to OFF. The guide mechanism 900 can be attached as necessary.

  Next, the needle alignment apparatus 100 of this example will be described. The needle alignment apparatus 100 of this example includes a gear connected to the hour hand pipe 410 and the minute hand pipe 420, that is, a needle alignment pinion 110 that meshes with the minute wheel 311. By rotating the needle alignment pinion 110, the hour hand pipe 410 and the minute hand pipe 420 are rotated. The needle aligner 110 is supported by a support shaft 621 provided at a main point of the second case member 620, and is rotatable about the support shaft 621.

  Also, as shown in FIGS. 6 to 8, a groove 111 for inserting a rotary tool 120 such as a Phillips screwdriver or a flat screwdriver and a predetermined operation element 130 are press-fitted and connected to the front end surface of the needle alignment knife 110. Hole 112 is provided. Furthermore, the opening part 613 which exposes these groove parts 111 and the hole parts 112 outside is provided in the main part of the 1st case member 610 of the case body 600. As shown in FIG.

  Particularly in the case of this example, the groove portion 111 and the hole portion 112 are located deeper in the opening 613 than the surface of the case body 600. The needle aligner 110 is configured to rotate using the rotary tool 120 and the operation element 130 alternatively. That is, the needle aligner 110 inserts the rotary tool 120 into the groove 111 and operates the rotary tool to rotate it. Alternatively, the operating element 130 is press-fitted into the hole 112, and the operating element is operated and rotated. The illustrated operation element 130 is provided with a boss 131 on the base end surface thereof, and the boss 131 is press-fitted into the hole 112 to be connected to the needle alignment knife 110. The needle aligner 110 to which the operation element 130 is connected rotates together with the operation element 130. The operation element 130 can be removed by picking it and pulling it. That is, it is detachable.

  According to such a configuration, erroneous operation of the needle alignment device 100 can be prevented. In the case of the radio-controlled timepiece, the positions of the hour hand pipe 410 and the minute hand pipe are automatically corrected by the control of the motor 210, so that it is usually unnecessary to operate the hand setting device 100. The needle alignment device 100 is used as necessary during manufacturing and inspection. That is, if the user operates this by mistake, accurate time display may be hindered. However, according to this example, the structure cannot be operated unless the rotary tool 120 or the predetermined operator 130 is present. Thus, such inconvenience can be avoided.

  In addition, when the movement is not used for the radio-controlled timepiece, it is preferable to use it normally while the operation unit 130 is connected. Alternatively, the operation element 130 may be fixed with an adhesive. In other words, there is no need to use different components depending on whether the radio-controlled timepiece is used or not, which is advantageous in terms of component sharing.

  In addition, it is needless to say that the configuration of each part in the present example can be appropriately changed in design within the technical scope described in the claims, and is not limited to that illustrated in the drawings.

  The hand setting device of the present invention can be used very suitably as a hand setting device provided in a movement of a radio-controlled timepiece.

FIG. 4 is a front view showing a movement of the radio-controlled timepiece according to the embodiment of the present invention. FIG. 6 is a rear view showing the movement of the radio-controlled timepiece according to the embodiment of the present invention. FIG. 6 is a top view showing a movement of the radio-controlled timepiece according to the embodiment of the present invention. It is explanatory drawing which concerns on the Example of this invention and shows the internal structure of a case body. It is a side sectional view showing an important section of a movement concerning an example of the present invention. (A) is a front view which shows the front end surface of a needle alignment kana, (b) is a side view of (a). FIG. 6 is a side cross-sectional view illustrating a state in which a rotary tool is inserted into a groove portion of a needle alignment kana according to an embodiment of the present invention. FIG. 5 is a side cross-sectional view illustrating a state in which an operation element is connected to a hole portion of a needle alignment kana according to an embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Movement 100 Needle aligning device 110 Needle aligning knife 111 Groove part 112 Hole part 120 Rotating tool 130 Operator 131 Boss 210 1st stepping motor 220 2nd stepping motor 310 1st speed reduction mechanism 311 Sun reverse wheel 312 Kana 320 2nd speed reduction mechanism 410 hour hand pipe 411 hour hand wheel 420 minute hand pipe 421 minute hand wheel 422 kana 430 second hand pipe 431 second hand wheel 500 circuit board 600 case body 601 middle plate 610 first case member 611 antenna mounting portion 612 snap 613 opening 620 second case member 621 Support shaft 630 Third case member 700 Position detection means 710 Light emitting element 720 Light receiving element 730 Translucent portion 800 Antenna 900 Reference mechanism 910 Reference wheel 911 Hole 920 Time transmission wheel 930 Reference cam 931 Raised portion 940 leaf spring 950 guide contact

Claims (2)

In the hand alignment device provided in the movement of an analog watch,
The movement includes a motor, a speed reduction mechanism connected to the motor, a pointer pipe for mounting a pointer, and a case body that supports them.
The needle alignment device includes a needle alignment pinion that meshes with a gear connected to the pointer pipe, and rotates the needle pipe by rotating the needle alignment pinion.
On the tip surface of the needle alignment cannula, a groove for inserting a rotary tool and a hole for press-fitting and connecting an operator are provided.
The case body is provided with an opening that exposes the groove and the hole to the outside.
The groove and the hole are located deeper in the opening than the surface of the case body,
The needle alignment device is configured to rotate using the rotary tool and the operation element alternatively.   The hand setting device according to claim 1, wherein the movement is a movement of a radio-controlled timepiece.

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