JP2502674Y2 - Equipment clock door opening and closing device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mechanism for opening and closing a door for accommodating and allowing a decorative body incorporated in an equipment timepiece such as a clock tower to appear.

[0002]

2. Description of the Related Art Today, every hour or so, the door is opened with music in time with the hourly clock, and a decorative body such as a doll incorporated in the equipment clock appears, and this decorative body is moved. Many equipment clocks such as clock towers have been installed to attract the attention of the viewer. With such an equipment clock,
Not only to open the door to make the decorative body incorporated inside the clock tower etc. appear, but also to attach the decorative body to the inner surface of the door and enlarge the stage formed when the door is opened,
There is one that makes the change of the clock tower large (for example, Japanese Patent Laid-Open No. Hei 2).
-31186).

Further, in the door of the above equipment timepiece, when a movable decoration is attached to the inner surface of the door, the weight of the door is several tens of K.
Since the drive motor for opening and closing the door requires a large torque, there are many cases where the drive motors are individually provided to the left and right doors.

[0004]

As described above, when a drive motor is attached to each of the left and right doors, even if the motors are driven so as to synchronize the two motors, the opening / closing operation of the doors is misaligned. May occur, and some equipment clock doors have a size of more than 1 meter square, and such large doors in equipment clocks installed outdoors, such as clock towers, Due to the influence of the wind, the left and right doors may be inadvertently rocked when the left and right doors are kept stationary in the open state or when the left and right doors are kept stationary in the opened state.

[0005]

According to the present invention, the right end is a rotary shaft.
Door that opens and closes the right door and the left door that has the left end as the rotation axis
It is a switchgear and has a shaft for the right door and a shaft for the left door.
Shaft for right door and left door by intersecting the axes of
The shaft and the shaft are arranged along the fixed wall, and the right door shuffle
The rotation of the right door shaft and the left door shaft is transmitted to the right door shaft and the left door shaft by a single motor via a gear train arranged near the end of the shaft and the left door shaft. and to rotate at the same speed and, to form a feed screw of the same pitch to the right door shaft and the left door shaft, and the feed nut engaged respectively threaded into the right door shaft and the left door shaft wherein The left and right doors will be connected by push rods.

[0006]

[Operation] The present invention transmits rotation to both the right door opening / closing shaft and the left door opening / closing shaft from a single motor through a gear train. Therefore, the right door shaft and the left door shaft And can be reliably rotated at a constant speed. Also, since the push rod is operated by the linear movement of the feed nut that is moved by the rotation of the feed screw formed on the shaft, the movement of the push rod causes the door to be opened and closed.
Although it is easy to move the door by rotating the shaft, it is less likely that the shaft will rotate due to an external force applied to the door, and it is possible to prevent the motor from accidentally rotating in the reverse direction or in the normal direction.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an equipment timepiece incorporating a switchgear according to the present invention is a quadrangular timepiece tower 10 as shown in FIGS. 1 and 2, and the two side surfaces of the timepiece tower 10 are opened and closed. As a door, the right door 15 and the left door 16 are operated by an opening / closing mechanism. This clock tower 10 has pillars 11 at the four corners.
Among the side wall plates fixed to, the two surfaces at the required height are used as open / close doors, and the right end of the right door 15 and the left end of the left door 16 are fixed to the fixed parts such as the columns 11 by the hinges 19, respectively . The right end of the right door 15 is used as a rotation axis, and the left door 16
The right end 15 and the left door 16 are each openable and closable with the left end thereof as a rotation axis .

Then, the right door shaft 61 having the feed screw formed thereon is arranged along the right fixed wall 13, and the left door shaft 41 having the feed screw formed is arranged along the left fixed wall 12, as shown in FIG. As shown, a bevel gear is attached to the output shaft of the motor box 21 as the output gear 23, and the output gear 23
The first transmission shaft 31 fixed to the first intermediate gear 25 that meshes with the second intermediate gear 26 that meshes with the right shaft gear 62 fixed to the right door shaft 61 and the fourth intermediate gear 28 of the second transmission shaft. And a third intermediate gear 27 that meshes with the second transmission shaft is attached to the left door shaft 41.
By mounting the fifth intermediate gear 29 that meshes with the left shaft gear 42 fixed to the shaft 5, the rotation of the output gear 23 of the motor box 21 is controlled by the shaft 61 for the right door and the shuffle for the left door.
To the right door shaft 61 and the left door shaft 41 via a plurality of gears arranged near the end of the door 41, and the right door shaft 61 and the left door shaft 4 are driven by a single motor.
1 is rotated, and the gear ratio of the intermediate gear is determined so that the rotation speeds of the right door shaft 61 and the left door shaft 41 are equal.

Further, the feed screws formed on the right door shaft 61 and the left door shaft 41 are formed over the entire length of the shafts 41 and 61 at the same pitch. The right feed nut 63, which is screwed into, is screwed into the right door shaft 61, and the left feed nut 43 is screwed into the left door shaft 41. In this embodiment, as shown in FIG. 4, a left rail 47 is provided in parallel with the left door shaft 41, a slider 48 is slidably provided on the left rail 47, and the left feed nut is attached to the slider 48. When 43 is fixed and the left door shaft 41 is rotated,
The left feed nut 43 is prevented from rotating, and the feed nut 43 is movable together with the slider 48 in the axial direction of the left door shaft 41.

The slider 48 and the left door 16 are connected by the left push rod 45, and the left push rod 45 is pinned to the left door 16 by the movement of the left slider 48 and the left feed nut 43. The position of 53 is moved so that the left door 16 is rotated around the hinge 19, and the right rail having a slider is similarly arranged in parallel on the shaft 61 for the right door. By fixing the right feed nut 63 and connecting the right slider and the right door 15 with the right push rod 65, the left and right doors 15 and 16 are opened and closed.

In this embodiment, as described above, the rotation is transmitted from the single motor to the right door shaft 61 and the left door shaft 41 by the gear train such as the transmission shaft and the intermediate gear, and the right door shaft 61 and Since the left door shaft 41 is rotated at the same speed and the right door shaft 61 and the left door shaft 41 are formed with the feed screw having the same pitch, the left feed nut 43 screwed to this feed screw is used. The right feed nut 63 and the right feed nut 63 can be moved at a constant speed.
Of the push rods 45 and 65 are rotatably attached to the slider that moves integrally with the feed nuts 43 and 63 while blocking the rotation of the feed nuts 43 and 63, and the other end of the left push rod 45 is attached to the pin 53 of the left door 16. Pin it with
Since the other end of the right push rod 65 is pinned to the right door 15 with the pin 73, if the positions of the right feed nut 63 and the left feed nut 43 are adjusted appropriately, the right door 15 and the left door 16 will be separated. At the same time, opening and closing can be performed so as to be fully opened or fully closed.

Further, in the above embodiment, the right rail is provided in parallel with the right door shaft 61, and the left rail 47 is provided in parallel with the left door shaft 61, and each slider is attached to the right rail and the left race. The right feed nut 63 and the left feed nut 43 are respectively prevented from rotating, one end of the right push rod 65 is pinned to the right slider, and one end of the left push rod 45 is pinned to the left slider 48. When an external force is applied to the feed nuts 43, 63 from the right door 15 or the left door 16 via the rods 45, 65, the radial load on the right door shaft 61 and the left door shaft 41 is parallel to the shafts 41, 61. The load is applied to the rail provided on the right door shaft, and only the thrust load is applied to the right door shaft 61 and the left door shaft 41, as shown in FIG. The provided auxiliary arms 55 and 75 to the end of the push rod 45 and 65, the push rod 45,
The end portion of 65 can be directly pinned to the feed nuts 43 and 63 with the pins 51 and 71.

[0013]

[Effects of the Invention] As described above, the present invention includes a shaft for the right door and
Place the left door shaft and the fixed wall along the fixed wall and
Crossed the axis, and transmits the rotation to the right door shaft and the left door shaft via a gear train by a single motor, 且
One is to rotate the right door shaft and the left door shaft at a constant speed, and simultaneously move the right feed nut and the left feed nut screwed with the feed screw formed on the right door shaft and the left door shaft. arsenide by, actuates the right and left push rod for connecting the door and the left and right said transmission Ri nut, the right door and left end fixed to the fixed portion by a hinge to the right end portion Te than
Because opening and closing the left door fixed to the fixed portion by Nji can be reliably performed that opening and closing the left and right doors simultaneously and, at a feed screw and a feed nut rotation of the right door shaft and the left door shaft Since it is possible to convert the rotation of the motor into the movement of the push rod because it is converted into a linear motion to operate the push rod, the external force applied to the left and right doors is applied to the feed nut via the push rod. Even if the external force is applied, the right door shaft and the left door shaft do not easily rotate due to this external force, and when the motor is stopped, the motor is carelessly rotated by the external force and the door swings. It is possible to prevent this.

[Brief description of drawings]

FIG. 1 is a plan sectional view showing an embodiment of an equipment timepiece having a door opening / closing device according to the present invention.

FIG. 2 is an external view showing an embodiment of an equipment clock having a door opening / closing device according to the present invention.

FIG. 3 is an enlarged plan view showing a main part of an embodiment of a door opening / closing device according to the present invention.

FIG. 4 is a side view showing a main part of an embodiment of a door opening / closing device according to the present invention.

FIG. 5 is a view showing a mounting state of another feed nut of the door opening / closing device according to the present invention.

[Explanation of symbols]

10 Clock Tower 15 Right Door 16 Left Door 21 Motor Box 23 Output Gear 31 First Transmission Shaft 41 Left Door Shaft 43 Left Feed Nut 45 Left Push Rod 48 Left Slider 61 Right Door Shaft 63 Right Feed Nut 65 Right Push Rod

Claims (1)

(57) [Scope of utility model registration request] 1. A right door having a right end as a rotation shaft and a left end having a rotation shaft.
A door opening and closing device for opening and closing the left door, which is for the right door
The axis of the shaft and the shaft for the left door intersect with each other.
In this way, the shaft for the right door and the shaft for the left door are respectively
They are arranged along the fixed wall, and the teeth to rotate at a constant speed and a single right <br/> door shaft Ri by the motor and the left door shaft
Both the right door shaft and the left door shaft are close to each other
A feed screw is formed on each of the right door shaft and the left door shaft near the end of the shaft, and each feed screw has a feed nut that is screwed into the feed screw, and each end is fixed by a hinge. Having a right door and a left door fixed to each other, a push rod connecting the right door and a right feed nut screwed to the shaft for the right door, and a left screw screwed to the shaft for the left door and the left door A door opening / closing device for an equipment clock, which has a push rod for connecting with a feed nut.