JPS59635Y2 - Clock or timer catch plate structure - Google Patents

Description

[Detailed description of the invention] This invention relates to the improvement of the catch plate structure of a clock or timer.
It is characterized by preventing unauthorized leakage of tenon oil applied to the bearing part.

As a structure for rotatably shafting a clock train or a timer train, it is often used to arrange the wheel train between a plurality of bearing plates and to shaft each gear with a bearing formed on the bearing plate. ing.

In this case, it is desirable to lubricate the bearings of low-torque, high-speed rotating wheels with tenon oil to reduce rotational load and bearing wear. Bearings in cars, etc. are lubricated.

However, in the conventional receiving plate structure, lubricated tenon oil may leak out from the bearing and stain the display plate (dial, etc.), or generate leakage current in the drive circuit, adversely affecting the operation of the clock or timer. There was a problem with giving away.

The present invention solves the above-mentioned conventional problems, and its purpose is to prevent unauthorized leakage of tenon oil that has been lubricated into the bearing portion of the receiving plate.

In order to achieve the above object, the present invention is characterized by a catch plate structure for a clock or timer in which a protective wall is formed from a stepped surface surrounding a plurality of bearing parts that require lubrication.

Hereinafter, the present invention will be explained in detail based on preferred embodiments.

FIG. 1 shows a plan view showing the receiving plate structure according to the present invention,
FIG. 2 shows a developed sectional view of the train wheel of the analog display timepiece assembled with the receiving plate shown in FIG. 1.

The receiving plate 2 is integrally molded from a plastic material into a functional shape as a watch bottom plate, and is treated to prevent tenon oil diffusion during the cleaning process.

This tenon oil diffusion prevention treatment is a coating of a chemical solution that makes it difficult for tenon oil to flow out on the surface of the backing plate 2, thereby making it difficult for tenon oil to flow on the surface of the backing plate 2 even if it leaks out from the bearing. It is something to have.

A display hole 4 is formed in the receiving plate 2 so that the second hand shaft 132, the minute hand pipe 152, the clock pipe 172, and the indicator pipe 182 can be projected to the front surface of the dial plate 200.

Further, the receiving plate 2 is formed with a rotor bearing portion 10, a fifth wheel bearing portion 20, and a third wheel bearing portion 30, and in addition, support holes 40, 42, etc. for other wheel trains or function control levers, etc. 4
4 and 46 are formed.

The bearing parts 10.20 and 30 have mortise holes 12.2.
2 and 32, and oil sump grooves 14, 24 and 34 are formed.

Furthermore, in the receiving plate 2, the surface 8 on which the bearing portions 10.20 and 30 are formed is lower than the other surface 6, that is, it is formed in a stepped surface shape, and the bearing portions 10.20 and 30 are formed lower than the other surface 6.
Projections 50 and 60 are formed to surround the outer periphery of display hole 4, and projections 70 and 80 are formed around the entire outer periphery of display hole 4.

Here, the surface B, the protrusion 60, the protrusion 50, and the surface 6 are:
The surfaces are formed in a step-like manner so that their heights are different, and the surface B, the protrusion 70, and the protrusion 80 are also formed in a step-like manner.

The dial plate 200 is arranged and fixed so as to be in contact with the receiving plate 2,
Specifically, it is held so as to be in contact with the surface 6 and the protrusion 70.

The clock train 100 includes a rotor 110 as a rotational drive source,
It is composed of a minute wheel 150, a date wheel 160, an hour wheel 170, and an indicator wheel 180.

Among these, the rotor 110.5 is used as a low torque high speed rotating vehicle.
Each rotating shaft 112.12 of the number wheel 120 and the third wheel 140
Bearings 10.2 and 142 require lubrication.

FIG. 3 shows an enlarged view of the main parts showing an actual lubricating operation for the rotor bearing part 10.

The oiling operation is completed by injecting an appropriate amount of tenon oil 210 contained in the syringe 220 into the exercise groove 14 of the bearing portion 10.

As a result, the frictional load applied to the rotational movement of the rotor shaft 112 is reduced, and it is possible to prevent stalling failures and the like.

Next, referring to FIG. 4, a function for preventing unauthorized outflow of tenon oil 210 will be explained using the rotor bearing part 10 as an example.

Since the tenon oil 210 is injected only into each bearing part 10, 20 and 30, and the surface of the receiving plate 2 is coated with a tenon oil diffusion prevention liquid, normally it does not flow out from the bearing parts 10 to 30. .

However, since the receiving plate 2 is installed perpendicularly to the installation surface of the watch body (as shown in FIG. 2) and due to external shocks, tenon oil may flow out from each of the bearings 10 to 30.

In the embodiment of the present invention, the difference in level between the protrusions 60 and 50 formed on the receiving plate 2 and the surfaces 6 and 8 completely prevents the tenon oil 210 from flowing out incorrectly.

In other words, the tenon oil 2 that has flowed out from the exercise groove 14 of the bearing part 10
10 is first dammed up by the protrusion 60.

If the amount of normal tenon oil 210 flows out, first this protrusion 6
0, but even if it did get over the protrusion 60, it would be completely blocked by the protrusion 50.

In order to further increase safety, in the present embodiment, the base surface 50a of the protrusion 50 (same height as the surface 8) and the surface 6 are formed into a stepped shape.

Therefore, the tenon oil 210 is prevented from leaking out illegally by the three-layered protective wall formed by the protrusion 60, the protrusion 50, and the stepped shape of the base surface 50a (surface 8) and surface 6.

In the present embodiment, by setting the heights of the protrusions 60 and 50 lower than the surface 6, the tenon oil 210
This also prevents adhesion to other members, that is, even the dial 200 in the embodiment.

This is a characteristic structure that arises because the dial 200 and the like cannot be treated to prevent tenon oil diffusion using a chemical solution.

If the protrusion 60 comes into contact with the dial 200,
The tenon oil 210 is transmitted through the dial 200 surface, and
0 or to the circuit section.

Further, in the present embodiment, the heights of the projections 60 and 50 are also made different.

This is to prevent at least the protrusions 60 from coming into contact with the dial 200 even if the dial 200 becomes warped due to aging.

As explained above, according to the receiving plate structure of the present invention, the leakage of the tenon oil 210 is completely blocked by the protrusions 60, 50, etc., and unauthorized leakage to the front surface of the dial 200 and the circuit section is surely prevented. It can be prevented.

Therefore, it is possible to reliably prevent defects such as contamination of the dial plate due to leakage of tenon oil and occurrence of leakage current in the drive circuit, which have been problems in the past.

Further, in the present invention, leakage prevention can be achieved without complicating the shape of the receiving plate.

This is because the shapes of the surfaces 6, 8, and protrusions 60 and 50 formed on the receiving plate 2 can be easily integrally molded with plastic, and the overall mold cost and molding cost are lower than those of the conventional receiving plate structure. There is no difference.

In addition, in FIG. 4, the outflow prevention function formed on the outer periphery of each bearing part 10 to 30 has been explained, but the display hole 4
A structure in which the protrusions 70 and 80 formed on the periphery of the protrusions 70 and 80 provide a similar effect.

In the embodiment of the present invention, the implementation of the receiving plate structure according to the present invention as a lower plate for a watch has been explained. It is sufficient to form a protective wall such as a protrusion only on the outer periphery.

In addition, in the present embodiment, the protrusions 60 and 50 are formed to completely surround the bearing parts 10 to 30, but in the case of a table clock that is placed in a constant state, only the direction in which tenon oil flows out due to gravity is required. can form a protective wall.

On the other hand, in addition to forming the protective wall using the protrusions shown in the embodiments, the present invention can similarly implement a protective wall forming structure by forming grooves.

As described above, the present invention relates to an improvement of the catch plate structure of a watch or a timer, and is intended to prevent unauthorized leakage of tenon oil that has been lubricated into the bearing part by a simple improvement of the catch plate structure.

[Brief explanation of drawings]

FIG. 1 is a plan view of a watch plate according to the present invention. FIG. 2 is a developed sectional view taken along the line A-A, showing a state in which the wheel train of the analog display timepiece is assembled using the receiving plate of FIG. FIG. 3 is an enlarged view of the main parts showing the oiling work for the rotor bearing. FIG. 4 is an enlarged view of the main part showing the state of tenon oil leaking from the rotor bearing. 2...Socket plate, 10.20.30...Bearing part, 50.60°70, 80...Protrusion, 21
0... Tenon oil.

Claims (1)

[Scope of utility model registration request] A receiver for a watch or timer, characterized in that, in a receiver plate having a bearing part that requires lubrication, the above-mentioned unauthorized leakage is prevented by forming a protective wall consisting of a stepped surface surrounding a plurality of the bearing parts. Plate structure.