JP2543846Y2 - Rotary dial support device - Google Patents

Description

[Detailed description of the invention]

[0001]

[Industrial application] The present invention is used for a mechanism clock, etc.
The present invention relates to a supporting device for a rotating dial .

[0002]

2. Description of the Related Art As a watch incorporating movement from the past,
For example, there is a mechanical clock that opens the door at the hour and a doll or the like comes out and dances or plays music. However, the dial is generally stopped. In view of such circumstances, the applicant of the present application has proposed a hand-operated timepiece (actually open flat type 2-411) in which a dial is rotatably driven via a drive motor which operates in response to a signal from a timepiece movement.
No. 92) has been previously proposed.

In this prior art, the rotary dial is
It is supported as follows. In other words, on the frame of the watch
At the position where the pointer axis of the watch movement
It is formed on the body, and the rotary dial is
It is rotatably supported.

[0004]

The present invention is to provide a cylindrical portion center and the guidelines
The center of rotation (center of the pointer shaft) is subject to manufacturing or assembly errors.
Usually there is a slight difference,
Rotary sentence rotatably supported by a cylindrical part
A gap also occurs between the center of rotation of the dial and the center of rotation of the hands.
You. Because of this, the watch movement is precisely assembled
No matter how accurately the hands move, the dial on the dial
As a result, a gap between the needle and the needle occurs. This problem is a wall clock
The larger the dial is, the more obvious it becomes
Whether the dial is directly or indirectly supported by the watch frame
Cannot be resolved.

The object of the present invention is to provide a rotary dial.
The center of rotation of the rotary dial to the center of rotation of the pointer.
A support device with a simple structure
It is to provide in the form.

[0006]

To achieve the above object, according to the Invention The support device of the rotary dial of the present invention, the spine of the support member
Clock movement located on the surface and the above-mentioned clock movement
And the finger of the watch movement
While the needle shaft penetrates and projects through the support member
Screw the center fixing screw and the center fixing screw to
Movement fixing nut for fixing the movement to the support
And the center fixing in front of the movement fixing nut.
Rotation screwed with the set screw and located in front of the support member
It consists of a support nut that rotatably supports the expression dial
is there.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 to 3, a fixed dial 2 having a ring shape in a front view is fixed inside a frame 1 of a timepiece. A fan-shaped window 2a is provided on the outer peripheral portion of the fixed dial 2 at a position corresponding to 11 o'clock to 1 o'clock. , A display character 2b is provided.

As shown in FIG. 3, a support plate 3 is fixed to the back side of the fixed dial 2 at a predetermined interval, and from a timepiece movement 4 attached to the support plate 3,
A pointer shaft 5 penetrates through the support plate 3 and projects forward from the fixed dial 2, and a pointer 6 is attached to a protruding end thereof.

[0009] sandwiched between the fixed dial 2 and the support plate 3 space, rotary dial 7, is provided rotatably around concentrically with the rotation of the pointer 6. The outer peripheral portion of the rotary dial 7,
Hour display characters 7a (FIG. 1) are provided at positions corresponding to 11:00, 12:00 and 1 o'clock, and at this time, a pattern 7b (FIG. 2) is drawn over the entire outer peripheral portion excluding the display characters 7a. . At this time, the display character 7a and the pattern 7b appear through the window 2a of the fixed dial 2 as shown in FIGS.

[0010] the rotary dial 7, the movable decoration 8, in the form of a doll riding a unicycle is attached so as to be positioned below the pointer shaft 5. Movable decoration 8 is composed of a body 8a which is fixed to the rotary plate 7, and the rocking ornament 8b swingable without arm shape, and the rotation ornament 8c rotatable the form of a wheelbarrow, the swing At the left end of the decoration 8b, the hour display character "6"
Is integrally formed.

[0011] will be described rotation center concentrically with the rotatable support structure of the rotary dial 7 guidelines 6.

[0012] As shown in FIGS. 4 to 7, watch Mubume
Center fixing screw coaxial with pointer shaft 5 protruding from
10 protrudes from the watch movement 10,
Screw the movement fixing nut 11 to the core fixing screw 10
The clock movement 4 is fixed to the support plate 3
Have been. The center hole of the rotary dial 7 is inserted through the collar 12a.
The support nut 12 that can be rotatably supported
Screw on the center fixing screw 10 in front of the
ing. Further, the outer peripheral portion of the rotary type dial 7 is engaged with a concave portion of a roller 13 rotatably attached to four pillars 3a erected on the support plate 3 at equal intervals. Roller 1
As shown in FIG. 6, the movement of the reference numeral 3 is restricted in its radial direction (vertical direction in FIG. 6), but it is slightly movable in its axial direction (horizontal direction in FIG. 6). . Therefore, even if warpage in the rotary dial 7 itself, by the roller 13 moves in the axial direction, the rotary dial 7
Absorbs rattling during the rotation, the rotary dial 7 is smoothly rotated. Also this roller 13, when the external load is applied to the rotary plate 7, this load has a function of preventing the spread to watch move <br/> instrument 4.

[0013] As such is the configuration, the rotary dial 7, the support nut 12 screwed to the center fixing screw 10
Therefore, the center hole is rotatably supported. This
Therefore, positioning of the rotation center of the rotary dial 7 itself is performed by a finger.
It becomes more accurate with respect to the center of rotation of the needle 6.

[0014] Next, the configuration for rotating the rotary dial 7. As shown in FIGS. 4 to 10 and 8, the portion near the outer periphery of the rear rotary plate 7, an annular portion 7c which forms the rotation center concentric with the pointer 6 Yes integrally formed, the annular portion A tooth portion 7d is formed on the outer peripheral surface of 7c. A dial driving movement 14 is attached to the support plate 3, and an output shaft 14 a (see FIG. 10) protrudes from the dial driving movement 14 through the support plate 3, and a pinion 15 attached to a protruding end thereof is provided. It is meshed with the tooth portion 7d of the rotary dial 7 as described above.

As shown in FIG. 4 and FIGS. 8 to 10,
The portion near the rotary dial 7 rotational center of the rear cylindrical portion 7e of an annular portion 7c concentric described above is is provided with integrally a part of the cylindrical portion 7e, the switch-off cam 7f Are continuously formed. A switch 16 for detecting one rotation is attached to the support plate 3, and a cam follower 16a of the switch 16 for detecting one rotation can follow the inner peripheral surface of the cylindrical portion 7e. When the cam follower 16a is engaged with the switch opening / closing cam 7f, the one-turn detection switch 16 sends a stop signal to the dial driving movement 14.

[0016] Because the above structure, when the dial driving movement 14 starts operating, rotation of the pinion 15 is transmitted to the toothed portion 7d, the rotation center concentrically with the rotary plate 7 is pointer 6 Rotate. Also because the rotary dial 7 is provided an annular portion 7c and the cylinder portion 7e integrally, deformation and warpage of the rotary dial 7 itself is prevented, rotary dial 7 is fixed dial 2 and the support plate 3 Never touch.

[0017] Next, the configuration providing a motion to the movable decoration 8 with the rotation of the rotary dial 7. As shown in FIGS. 8 to 10, on the front surface of the support plate 3, a sun gear 3b which is concentric with the rotation center of the hands 6 and has teeth on the inner peripheral surface is integrally formed. The planetary gear 17 that meshes with the sun gear 3b is, is attached rotatably to the rear of the rotary dial 7. An intermediate wheel 18 is rotatably mounted on the back of the body 8a of the movable decoration 8.
Is meshed with the planetary gear 17 described above.
The central portion of the intermediate wheel 18 is an eccentric cam 18b, and a concave portion 8 of a swing decoration 8b that is swingable about a pin 9.
d is engaged with the eccentric cam 18b. The tip of the intermediate wheel 18 is a tooth portion 18c.
c meshes with a gear 8e integrally provided on the back surface of the rotary decoration 8c.

The transfer order is such a configuration, the planetary gear 17 is rotated along with the sun gear 3b with the rotation of the rotary dial 7, the rotation of the planetary gear 17 itself (rotation) of the intermediate wheel 18 As shown by the arrow in FIG. 9, the rotation of the eccentric cam 18b causes the swing decoration 8b to swing and the rotation decoration 8c to rotate.

Next, the operation of the present invention will be described. Becomes the hour eg 10:00, with play broadcast time sound melody or the like, the hour signal is supplied to the dial driving movement 14 rotates the output shaft 14a, rotary this rotation through a pinion 15 is transmitted to the plate 7 back teeth 7d, rotary dial 7 itself is rotated concentrically with the rotational center to the clockwise direction of the pointer 6.

[0020] By rotating the dial 7 is rotated, display character 7 when was visible through the window portion 2a until then
a (FIG. 1) is hidden, and the pattern 7b (FIG. 2) is replaced by the window 2
a.

[0021] With the rotation of the rotary dial 7, the planetary gear 1
7 rotates clockwise along the inner peripheral surface of the sun gear 3b. The rotation (rotation) of the planetary gear 17 itself is the intermediate wheel 1
As shown by an arrow in FIG. 9, the eccentric cam 18b rotates to swing the swinging ornament 8b around the pin 9, and the rotating ornament 8c rotates counterclockwise through the wheel train. Rotate in the direction.

The movable decoration 8 because that is attached to the front surface of the rotary dial 7, the movable decoration 8 is moved in a clockwise direction along the inner frame 1 on the front of the fixed dial 2. With this configuration, it looks as if the doll 8 is running inside the watch by rowing the unicycle (8c) while swinging the arm (8b) left and right to balance.

[0023] With the rotation of the rotary dial 7, the cam follower 16a of the first rotation detecting switch 16 is attached to the support plate 3, the inner peripheral surface of the cylindrical portion 7e on the back of the rotary dial 7 Follow. When the cam follower 16a plate 7 is rotated exactly 360 degrees to engage the switch-off cam 7f, the stop signal from the first rotation detecting switch 16 to dial the driving movement 14 is transmitted, the rotary dial 7
Stops and returns to the original state (FIG. 1).

In this embodiment, an hour signal is supplied from the timepiece movement 4 to the dial driving movement 14, and
When rotary plate 7 is on the hour (eg 10:00) is configured to rotate by one rotation, but is not limited thereto, optionally set by the time signal dial drive such alarm time is supplied to use the movement 14, rotary statement <br/> shaped plate 7 may be rotated. Further, the rotary dial 7 can be configured to stop after 2 rotates or 3 rotating not only one revolution.

[0025]

As described above, according to the rotary dial support device of the present invention, the center of the timepiece movement is fixed.
Center hole of rotating dial by supporting nut screwed on screw
The center of rotation of the pointer is
Of the center of rotation of the rotary dial itself with respect to
Will be accurate. Also, the outer periphery of the rotary dial is
To support the roller
In this case, the rotating operation of the rotary dial is further stabilized.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a front view showing the operation state of the above.

FIG. 3 is a sectional view taken along line aa of FIG. 1;

FIG. 4 is a sectional view taken along line bb of FIG. 3;

FIG. 5 is a sectional view taken along line cc of FIG. 4;

6 is an enlarged sectional view of a portion A in FIG.

7 is an enlarged sectional view of a portion B in FIG. 5;

FIG. 8 is an exploded perspective view of a main part.

FIG. 9 is an enlarged front view of a movable ornament.

FIG. 10 is a sectional view taken along line dd of FIG. 9;

[Explanation of symbols]

3 the support member (support plate) 4 watch movement 5 pointer shaft 7 rotating dial 10 around fixing screw 11 supporting the nut 13 roller fixing nut 12 rotatable dial of the timepiece movement

Claims (2)

(57) [Scope of request for utility model registration] 1. A watch mover located on the back of a support member.
Is fixedly mounted on the watch movement and the watch movement
Above the watch movement
A center fixing screw projecting through the supporting member,
Screw the watch movement onto the support member by screwing it into the set screw.
The movement fixing nut and the movement
Screw the center fixing screw in front of the fixed nut and
The rotatable dial located in front of the holding member is rotatably supported
Rotary dial support device consisting of a support nut to be rotated. 2. The rotary dial support device according to claim 1, wherein a plurality of rollers are provided on the support member to engage with an outer peripheral portion of the rotary dial.