JPH0559379U - Mechanism opening / closing mechanism for Karakuri clock - Google Patents

Abstract

(57) [Summary] [Purpose] Even a motor with a small driving force can be opened and closed easily.
To provide a mechanism for opening and closing a Karakuri clock that does not take up much space for storing the door. [Structure] A door arranged in an opening on the front surface of a stage in a mechanical clock is divided into a plurality of door structures, and each door structure is provided with a plurality of rails provided at an upper edge or a lower edge of the opening. In parallel with each other, integrally and integrally, and further, directly or indirectly pivotally connecting the rotary arm to the first door structure to be driven first, and in addition to each door structure, A towing hook is provided between the door and the adjacent door structure.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a door opening / closing mechanism of a mechanical clock.

[0002]

[Prior Art]

 Although various proposals have been made for the door opening / closing mechanism of a large mechanical clock, Japanese Patent Laid-Open No. 63-307387 discloses a door opening / closing mechanism similar to the present invention.

In the disclosed technique, a rotating shaft provided on one arcuate door in plan view is rotationally driven to open to the outside of the tower house, and one door is rotated from the outside of the tower house to the front of the device. It is driven.

[0004]

[Problems to be solved by the device]

 In the technical means disclosed in the above publication, since the entire weight of the door is applied to the rotating shaft, a large driving force is required for the initial operation when rotating one door, and a large motor is required.

Further, since the structure is such that one door is rotationally driven to open and close, the tower of the mechanical clock will inevitably have a cylindrical shape.

Furthermore, since one door is rotated to rotate outward of the side wall of the tower, the rotation path of the door becomes large. In other words, the space required to move the door becomes large, and the space for arranging the mechanism is limited accordingly.

The present invention has been made for the purpose of providing a mechanism for opening and closing a door of a mechanical timepiece that solves the above problems.

[0008]

[Means for Solving the Problems]

 That is, according to the present invention, the door arranged in the opening on the front surface of the stage in the mechanical timepiece is divided into a plurality of door structures, and each door structure is provided with a plurality of strips provided at the upper edge or the lower edge of the opening. Rails that are parallel to each other and are integrally addressed, and a rotary arm is directly or indirectly pivotally connected to the first door structure that is driven first, and in addition, each door structure is A towing hook is provided between the door and the next adjacent door structure. The term "indirect" means that an auxiliary arm is used as described in the examples.

[0009]

[Action]

 The door opening / closing mechanism deploys a door structure housed in a superposed state by rotationally driving a rotary arm, and reversely rotates the rotary arm to superpose the door structure inside the side wall of the opening. .

That is, by rotating the rotating arm in the forward direction, the front door structure is pushed out to the opening along the rail, and the front door structure pulls the adjacent door structure to close the opening. . Then, by rotating the rotating arm in the reverse direction, the front door structure moves along the rail to the vicinity of the side wall of the opening, and the front door structure pulls the adjacent door structure to open the opening.

[0011]

【Example】

 FIG. 1 is a plan view of one embodiment, and 1 indicates a stage. Reference numeral 2 denotes an opening provided on the front surface of the stage 1, and 3 denotes a side wall of the opening 2. In the illustrated embodiment, double-opening doors 4 and 4 are provided.

The door 4 according to the present invention is divided into two door structures 4a and 4b, and a rotary arm 5 is provided on a door structure (hereinafter referred to as a "lead door structure 4a") existing on the center side at the time of deployment. Is indirectly pivotally connected. Specifically, a pair of motors 6 and 6 are arranged on the ceiling surface, the rotary arms 5 and 5 are fixed to the rotary shafts 7 and 7 of the motors 6 and 6, and the tips of the rotary arms 5 and 5 are fixed. The base ends of the auxiliary arms 8 and 8 are pivotally connected to each other, and the front ends of the auxiliary arms 8 and 8 are pivotally connected to the leading door structures 4a and 4a. Reference numerals 9a and 9b are rails on which the door structures 4a and 4b travel, and are provided in front of the stage 1 in parallel with each other. Therefore, the rotation arm 5 is rotated by the normal rotation or the reverse rotation of the motor 6, and the rotation of the arm 5 pulls the leading door structure 4a through the auxiliary arm 8 and runs on the rail 9a.

A single door structure 4b (hereinafter referred to as "adjacent door structure") is pulled by the leading door structure 4a and moves on the rail 9b. That is, between the rear part on the upper surface of the front door structure 4a and the front part on the upper surface of the adjacent door structure 4b, there are provided traction latching parts 10a, 10b which are locked at the time of deployment. At the time when 4a almost appears from the side wall 3, the towing hooking portions 10a and 10b are engaged, and the adjacent door structure 4b is pulled by the leading door structure 4a and goes out to the opening 2. The motor 6 is stopped when the opening 2 is closed or fully opened. Although not shown, the towing hook portion for returning (when the door is opened) is provided between the front portion of the lower surface of the leading door structure 4a and the rear portion of the lower surface of the adjacent door structure 4b. When the leading door structure 4a is overlapped with the adjacent door structure 4b, the return pulling hook is engaged. Therefore, the rotation of the motor 6 first starts the front door structure 4a and then the adjacent door structure 4b, and as a result, the motor 6 is divided into lighter door structures 4a and 4b. A small motor can be used as long as it has enough driving force to start the motor. The driving of the motor 6 is automatically stopped by a sensor (not shown) provided on the stage 1 or the rails 9a and 9b. Moreover, the space for accommodating the divided door structures 4a and 4b in a superposed manner is small, and the degree of freedom in arranging other mechanical devices is increased.

In the embodiment, two motors 6 are used, but it is also possible to use one motor. Further, although the doors are divided into two for each of the left and right sides, they may be divided into three and four, and the rails 9a and 9b may be provided on the ceiling of the opening. Furthermore, although the rotary arm 6 is indirectly pivotally connected to the front door structure 4a in the above embodiment, for example, the rotating arm 6 may be directly connected to the front door structure 4a.

[0015]

[Effect of the device]

 As described above, according to the present invention, since the door is divided, the starting force that the motor should have is small, the storage space of the door is small, and the structure of the karakuri watch tower is cylindrical. There are many benefits such as not having to use it. Doors with split door constructions also have the advantage of having varying designs.

[Brief description of drawings]

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

FIG. 2 is an enlarged perspective view of a towing hook portion.

[Explanation of symbols]

 1 Stage 2 Opening Part 3 Sidewall 4 Door 4a Leading Door Structure 4b Adjacent Door Structure 5 Rotating Arms 9a, 9b Rails 10a, 10b Towing Hooks

Claims (1)

[Scope of utility model registration request] 1. A door arranged in an opening on a front surface of a stage in a mechanical timepiece is divided into a plurality of door components, and each door component is provided with a plurality of strips provided at an upper edge or a lower edge of the opening. Rails which are parallel to each other, are integrally engaged with each other, and a rotary arm is directly or indirectly pivotally connected to the first door structure to be driven first. A door opening / closing mechanism for a mechanical clock, characterized in that a towing hook is provided between the door and the next adjacent door structure.