JPS592551Y2 - Adjustment mechanism for hour hand, etc. - Google Patents

Description

[Detailed Description of the Invention] The present invention is mainly directed to orthogonal trapezoidal correction mechanisms, and relates to a correction mechanism that can be easily incorporated later into an assembled article with various parts already attached. .

Conventionally, as shown in Fig. 1, a modified shaft 4 having a modified first wheel & pinion 2 and a modified pinion 3 was attached to the frame 1 in advance, and then a modified second wheel & pinion 5 and a modified third wheel & pinion 6 were attached. The auxiliary plate 7 was fixed to the frame 1 with screws 8 or the like.

Therefore, the distance 1 between the correction shaft 4 and the auxiliary plate 7 is large, resulting in a bulky structure, and there are disadvantages in that extra parts such as the auxiliary plate 7 and screws 8 must be used.

The present invention has been devised in view of these points, and its contents will be explained below with reference to the illustrated embodiments.

10 is modification 3 attached to the vertical wall surface 12 of frame 11
It is impossible for the number wheel to mesh appropriately with a correction pinion 13, which will be described later.

Reference numeral 14 denotes a horizontal wall surface formed by bending the protruding portion of the frame 11 inward by 90 degrees, and is connected to the slit-shaped notch 15 to form the through hole portion 1.
I am wearing 6.

In the present invention, by providing the notch 15 and the through hole 16, it is possible to install the correction shaft 17 having the correction pinion 13 which forms the correction mechanism body 23 later. This is a characteristic of the invention.

Reference numeral 18 denotes a correction bearing that is loosely fitted onto the extension shaft 17A of the correction shaft lever 17. Normally, the correction pinion 1 is moved by the expansion force of the correction spring 19.
It is closely attached to 3.

That is, 11 is zero.

20 is a stepped portion of the modified bearing 18; 21 is a spring cap; 2
2 is an E-type retaining ring.

Next, an explanation will be given of the assembly sequence of the mechanism of the present invention having a diagonal configuration.

When the modification pinion 13 is inserted orthogonally to the modified third wheel & pinion 10 which is pre-installed on the vertical wall surface 12 of the frame 11 and is forced to engage appropriately, the notch 1 in the horizontal wall surface 14 of the frame 11 is inserted.
5, insert the extension shaft 17A portion of the modified shaft rod 17.

At this time, as shown in FIG.
It is assembled by pushing it apart in the direction of arrow A against the spring force of.

When this extension shaft 17A portion is passed through the notch 15 and the correction bearing 18 is released at the position of the through hole portion 16, the fifth
As shown in the figure, the correction bearing 18 is moved in the direction of arrow B by the restoring elasticity of the correction spring 19, and the stepped portion 20 of the correction bearing 18 is fitted into the through hole portion 16.

Since the correction bearing 18 is constantly pressed by the correction spring 19, it will not come off from the frame 11.

Now, when the correction shaft 17 is pulled in the direction of arrow C to correct the time, the correction spring 19 is compressed, so the correction pinion 13 is adjusted to 3.
It meshes orthogonally with the number wheel 10.

After adjusting the time by appropriately rotating the correction shaft 17, when the pulling force in the direction of arrow C is released, the correction shaft 17
will move in the direction of the arrow and return to its original position due to the restoring elasticity of the correction spring 19.

At this time as well, since the correction bearing 18 is pressed by the correction spring 19, it will not come off from the frame 11.

In this invention, a modified third wheel & pinion 10 is installed on the vertical wall surface 12 as shown on the slope.
When attaching the correction mechanism body 23 to the horizontal wall surface 14 and attaching the correction mechanism body 23 to the horizontal wall surface 14, it has a correction pinion 13 equipped on the correction shaft rod 17 and a stepped portion 20 to which a springing force is applied. It is characterized in that it is mounted with a wider space between it and the correction bearing 18, and its installation is strongly tightened, so that the correction mechanism 23 can be easily and easily installed in a later process and smoothly linked with the correction third wheel & pinion 10. I can force it.

Furthermore, the correction mechanism 23 is attached to the horizontal wall surface 14 by widening the space between the correction pinion 13 mounted on the correction shaft 17 and the correction bearing 18 having the stepped portion 20 to which the springing force is applied. Even if the thickness of the horizontal wall surface 14 changes or the distance between the modified third wheel and pinion 10 changes, the installation can be done smoothly without changing the mechanism, and the width and thickness of the stepped portion 20 can be changed. By changing this, it is possible to minimize the fall of the correction shaft 17 supported in one place, and furthermore, since the correction bearing 18 is always pressed by the correction spring 19, the correction mechanism 23 can be reliably and strongly removed from the frame 11. can be mounted on the horizontal wall surface 14.

There are other effects.

[Brief explanation of drawings]

Figure 1 is an explanatory diagram of the prior art, Figures 2 to 5 are explanatory diagrams of the present invention, where Figure 2 is a plan view of the main part, and Figure 3 is the
4 is a side view of the corrected shaft rod, and FIG. 5 is a side view of the entire mechanism of the present invention. 10... Modified third wheel, 11... Frame, 13... Modified pinion, 15... Notch, 16... Through hole Part, 17... Modified shaft rod.

Claims (1)

[Scope of utility model registration request] The correction third wheel & pinion 10 is attached to the vertical wall surface 12 of the frame 11, and a through hole 16 is bored in the horizontal wall surface 14 of the frame 11 in line with the slit-shaped notch 15. Modified kana 13 to modified shaft 17
The correction bearing 18 with the stepped portion 20 formed thereon is loosely fitted into the correction shaft 17 so as to be in close contact with the correction pinion 13 due to the elasticity of the correction spring 19, and the correction mechanism 23 is attached to the horizontal wall surface 14. A correction mechanism for a watch or the like in which the gap between the correction pinion 13 and the correction bearing 18 is widened and the correction mechanism is mounted on the horizontal wall surface 14 with elastic force.