JPH0620157Y2 - Decorative clock opening / closing mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an opening / closing mechanism for a decorative door used in a decorative device that is housed in a watch body such as a wall clock or a table clock.

(Prior Art) A cuckoo clock is known as an opening / closing mechanism for a decorative door used in the above decoration device. As is well known, the decorative body of the pigeon appears and disappears from the door provided above the dial at each time, and the decorative door opens and closes in conjunction with the appearance and disappearance of the decorative body. For example, in JP-A-57-60276, the connecting rod is a door and a pigeon seat,
Alternatively, the decorative door is connected to the door and the pigeon body drive lever and is configured to open and close the decorative door in conjunction with a timekeeping mechanism that interlocks with the clock mechanism.

(Problems to be solved by the invention) As described above, in the opening / closing mechanism of the decorative door in the cuckoo clock, the drive side (cage body seat or claw body drive lever) and the driven side (door) are connected by the connecting rod. Therefore, if you try to change the opening angle of the decorative door, you have to change the position of the connecting part,
Further, in order to obtain a predetermined opening angle, the position of the connecting portion on the driving side has to be arranged close to the center line of the ornament, and the ornament device having a complicated mechanism cannot be used. . Further, since the connecting rod is connected to the decoration door, there is a concern that the decoration device may be damaged if the decoration door is opened and closed carelessly.

(Means for Solving the Problems) The present invention has been made in view of the above-mentioned conventional problems, and its purpose is to make it possible to set the opening angle of a decorative door with a simple structure and to provide a decoration having a complicated mechanism. An object of the present invention is to provide an opening / closing mechanism for a decoration device that can be opened and closed without using any special mechanism in the device even when used in the device. Therefore, in the present invention, in a decorative door opening / closing mechanism of a decorative timepiece in which a decorative member can appear and disappear from a decorative door provided in a watch case, the decorative door is always biased in the closing direction and one end of the decorative door is pressed against the inner wall of the decorative door. A slide arm whose other end is rotatably mounted on the rear side of the decorative member, and a guide portion which is fixed near the decorative door and guides the slide arm. And

(Embodiment) A preferred embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a cross-sectional view showing an open state of a decorative door according to the present invention,
FIG. 2 is a cross-sectional view showing the closed state, and FIG. 3 is an explanatory view showing the operation of the ornament protruding.

In the figure, reference numeral 1 is a watch body, and a decoration device 3 is arranged above the watch case 2 and a watch mechanism (not shown) is arranged below the watch case 2. The decoration device 3 is a push-out mechanism for pushing out the stage 5 on which the ornamental body 4 is arranged, a mechanism that rotates after the stage 5 is pushed out, and the ornamental body 4 rotates in conjunction with the rotation, and a decoration door opening / closing mechanism. It is established from. Reference numeral 6 denotes a mechanism receiving plate provided with a mechanism for pushing out the stage 5 and a mechanism for rotating the stage 5, which is fixed to the timepiece case 2 by the receiving plate 7.

The mechanism for pushing out the stage 5 and the mechanism for rotating the stage 5 and the ornamental body 4 are related to the application filed previously by the applicant.
3271 and Jpn. Pat. Appln. No. 63-3272, the contents are the same, so only the outline will be described. As shown in FIG. 3, the stage 5 is rotatably supported by a stage receiver 8 by a shaft 9, and the stage receiver 8 is slidably supported on a support member 14 erected on a mechanism support plate 6. There is. Reference numeral 15 is a holding rod for holding the flange portions 16 projecting on both sides of the stage support 8 from above, and the stage support 8 is accidentally pressed.
Has a role to prevent the upward disengagement. A rack 10 is formed on the lower surface of the stage support 8, and a pinion 13 meshing with the rack 10 is provided with a rotational force from an extrusion motor 11 mounted below the mechanism support plate 6 via an intermediate gear 12.
It is a mechanism to transmit to. Reference numeral 17 denotes a slide arm, which has an elongated through hole 18 formed in the center thereof and serves as a guide groove described later. Slide arm 17
As shown in FIG. 6, one end of is attached rotatably to a column 19 standing upright on the rear side of the stage 5 with a pin 20, and the other end of the pressing portion 2 for pressing the inner wall 21 of the decorative door 20.
2 is provided. As shown in FIG. 4, the pressing portion 22 has a roller 23 made of synthetic resin loosely fitted on the slide arm 17 by a pin 23, and when the decoration door 20 is opened and closed, the pressing portion 22 and the inner wall of the decoration door 20. 21 is prevented from sliding. The guide pin 25 guiding the through hole 18 is press-fitted and fixed to the receiving plate 7 as shown in FIG. Decorative door 20
Is constantly urged in the closing direction by a hinge 26 with a coil spring, and the inner wall 21 is mirror-finished to give a decorative effect.

The opening and closing mechanism of the decorative door according to the present invention is configured as described above,
The operation will be described below.

Normally, as shown in FIG. 2, the stage 5 and the slide arm 17 are stored in the timepiece body 1, and the decoration door 20 is also in the closed state. When the predetermined time is reached, the motor 11 is rotated and transmitted to the intermediate wheel 12, the pinion 13 and the rack 10 to push the stage 5 to the predetermined position. At this time, the slide arm 17 interlocked with the protrusion of the stage 5 presses the inner wall 21 of the decorative door 20 with the pressing portion 22, and the decorative door 2
0 is opened. Motor 1 when storing stage 5
You can reverse 0.

And when trying to change the opening angle of the decorative door 20,
Obviously, it is possible to change the length and shape of only the slide arm 17 and to change only the position of the guide pin.

(Effects of the Invention) As described above, according to the present invention, in the decorative door opening / closing mechanism of the decorative timepiece in which the decorative member can be retracted from the decorative door provided in the watch case, the decorative door is always biased in the closing direction. A slide arm having one end pressing the inner wall of the decorative door and the other end rotatably mounted on the rear side of the decorative member; and a slide arm fixed near the decorative door to guide the slide arm. It is possible to change the opening angle of the decorative door easily because it is equipped with a guide part that operates, and since it can be arranged on the side surface of the opening and closing device of the decorative door, it is possible to use it together with a decorative device having a complicated mechanism. . Further, since there is no connecting portion between the opening / closing mechanism and the decoration door, there is no fear of damaging the decoration device even if the decoration door is opened / closed carelessly. Further, it is possible to open and close the decorative door about 180 degrees from the closed state of the decorative door by using a hinge with a coil spring as a fulcrum.

[Brief description of drawings]

The drawings show an embodiment of the present invention. Fig. 1 is a cross-sectional view showing an open state of a decorative door, Fig. 2 is a cross-sectional view showing a closed state of a decorative door, and Fig. 3 is a motion of a decorative body protruding. FIG. 4 is a sectional view taken along the line AA in FIG. 1, FIG. 5 is a sectional view taken along the line BB in FIG. 1, and FIG. 6 is a sectional view taken along the line C- in FIG.
It is a C line sectional view. 2 ... watch case, 4 ... decoration body, 5 ... stage, 17 ... slide arm, 20 ... decorative door, 21 ... inner wall, 22 ... pressing part, 25 ... guide pin.

Claims (1)

[Scope of utility model registration request] 1. A decorative door opening / closing mechanism of a decorative timepiece, which is provided in a watch case and in which a decorative member can be retracted from a decorative door which is always biased in a closing direction, wherein one end is a pressing portion for pressing an inner wall of the decorative door. A decorative timepiece comprising: a slide arm having the other end rotatably attached to a rear side portion of the decorative member; and a guide portion fixed near the decorative door to guide the slide arm. Decorative door opening and closing mechanism.