JPS6118470Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a time information detection device for a pointer type watch, and is mainly used in a pointer type watch having a time reporting function such as a time stamp.

The purpose of this invention is to simplify the structure.

FIG. 1 is a block diagram showing the configuration of a conventional hour striking detection method, in which 1 is an hour hand, 2 is an hour wheel, 3 is a code plate that rotates together with the hour wheel, 4-1, 4-2, 4
-3, 4-4 are metal leads fixed to a clock frame (not shown), etc., and depending on the presence or absence of contact with the code pattern formed on the code plate 3, a binary signal consisting of 4 bits is generated. Detect the code as time information. Arrow 5 indicates the route by which information from the lead is delivered to the electrical memory.

Four bits are required to create binary information indicating the 12 different hours from 1 o'clock to 12 o'clock, but the disadvantage of the conventional example is that it is complicated because it uses four metal leads to meet this requirement. This means that it will have a strong structure.

The present invention was devised in view of the drawbacks of the conventional example, and its purpose is to provide a time information detection device with a simple structure.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 2 is a perspective view of each component in one embodiment of the present invention.
Reference numeral b denotes a cord detection spring body 7, and c denotes an hour wheel 8, which in this embodiment is integrally formed from plastic.

The code information plate 6 has a hole 6-1 corresponding to the cylinder 8-1 of the hour wheel 8, and a code as shown in FIG. A pattern 10 and an electrical level pattern 16 are formed, and furthermore, an information line 18 and an electrical level setting line 17 connected to the code pattern 10 and the electrical level pattern 16 are formed. (In Fig. 4, the shaded area indicates the conductive pattern.) If a printed circuit board or the like is used for the code information board 6, these patterns can be easily formed by etching, even if the shape is quite complicated. Can be formed with precision. The above-mentioned printed circuit board etc. are configured to mount not only the code information board 6 but also the circuits connected thereto.

The code detection spring body 7 is made of metal and has a substantially circular outer shape. In its center is the cylinder 8 of the hour wheel 8.
-1 is inserted through the hole 7-1, and a mounting hole 7-2 corresponding to the protrusion 8-2 of the hour wheel 8 is provided. Further, the code detection spring body 7 has elastic contact with the code pattern 10 and the electrical level pattern 16 of the code information board 6 in the assembled state;
Lead section 1 serving as a means for detecting and transmitting time information
1 to 15 are formed. In this embodiment, five lead parts are formed, each of which has a different distance from the center of the code detection spring body 7, and whose position in the circumferential direction is shaped to create a binary code depending on the purpose of use. The code pattern 10 and electrical level pattern 16 of the code information board 6 formed in
configured to correctly correspond to Further, the lead portions 11 to 15 are suitably bent, have spring properties, and have tip portions 11-1 to 15-1.
The code information board 6 is contacted at this point.

The hour hand wheel 8 meshes with another gear train (not shown) and the hour hand wheel 8 meshes with another gear train (not shown).
It is configured to rotate once per hour or 24 hours,
An hour hand (not shown) is attached by any suitable means. Here, the hour hand wheel 8 may be any wheel that rotates at the same speed as the hour hand.

19 and 20 are marks provided around the hour hand wheel 8 to inform the operator that the position corresponds to the hour during assembly, and 20 is a special mark to indicate that the position corresponds to 12 o'clock. It has a shape.

FIG. 3 is a needle perspective view showing the hour hand wheel 8 with the code detection spring 7 attached thereto. Both are mutually positioned using protrusions 8-2 and holes 7-2 provided in positionally correctly corresponding to the code pattern 10 and electrical level pattern 16 of the code information board 6, and are thermally caulked as shown in 9. It is fixed by means such as.

FIG. 4 is a perspective view showing the configuration of the main parts of the time information detection device of this embodiment. In the case of this embodiment, the configuration is such that the same information is obtained every hour on the hour and every half hour. That is, as is clear from the figure, the code pattern 10 is shaped to turn on and off every 30 minutes, and the lead portions 11 and 12 of the code detection spring 7 turn on and off at the same time as the hour wheel 8 rotates. is configured to do so. The electrical level pattern 16 has a circular band shape, and has lead parts 13, 14, 15.
rotate while always in contact.

Therefore, the electric level setting line 17 and the information line 18 are connected via the code detection spring body 7 every 30 minutes.
will be connected to a circuit (not shown) that detects time information and has electrical memory, etc.
is transmitted to drive the time striking mechanism to perform the time striking.
The code information board 6 constitutes a circuit board extending in the directions of lines 17 and 18. This circuit board mounts a circuit including the electrical memory and the like described above. In this embodiment, since a plurality of lead portions are in contact with each of the code pattern and the electrical level pattern, the reliability of the electrical connection is increased.

In the above-described embodiment, a device is described that detects time information as the same information every 30 minutes, but other forms of implementation are also possible by increasing the number of information lines. For example, if four types of code patterns with different shapes are formed concentrically and are connected to separate information lines, only the lead part 15 of the code detection spring body 7 contacts the electrical level pattern, and the lead parts 11 to 14 By configuring each to turn on and off to different code patterns, a 4-bit binary code is created, and 12 different types of time information are detected at each hour on the hour, and the clock is struck in accordance with each information. let Furthermore, it is clear that the example described above could be constructed to include a half-hour clock. Note that there is also another means for setting the level to the code detection spring body 7 that does not use the electrical level pattern 16.

Note that the lead parts 11 to 15 are in frictional contact with the code information plate 6 fixed to the clock frame, etc., so that the hour hand wheel 8, which is fixed integrally with the lead part, is damaged, and furthermore, the hour hand 8 is It also has the function of a hand washer that stops the minute hand wheel (not shown) from crashing. Further, as shown in FIG. 2b, the lead parts 11 to 15 of the code detection spring body 7 are arranged in a well-balanced manner with respect to the planar shape of the hour hand wheel 8. The hour hand wheel 8 will not tilt due to the spring force. Furthermore, the shape of the code detection spring body 7 can be easily manufactured by press working, etc., and the mold itself does not require high precision, so it is easy to manufacture, and as a result, it can be manufactured at low cost.

The gist of the present invention is to unify the lead part for code detection as a code detection spring body, thereby simplifying the configuration of the time information detection device and making it inexpensive. .

Furthermore, the code information board 6 is not made independent, but is formed integrally with a circuit board having an electric memory circuit for processing time information, thereby making it possible to simplify and downsize the structure of the entire timepiece. Such an effect can only be achieved by fixing the circuit board provided with the code information board 6 to a clock frame or the like and making it stationary as in the present invention.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a conventional time information detection method. 2 to 4 show embodiments of the present invention,
Figures 2a, b, and c are perspective views of the code information board, code detection spring body, and hour hand wheel, respectively; Figure 3 is a perspective view showing the code detection spring body fixed to the hour hand wheel; The figure is a perspective view showing the configuration of a time information detection device according to the present invention. 6...Code information board, 7...Code detection spring body, 8...Hour wheel, 11, 12, 13, 14, 1
5...Lead part, 10...Chord pattern.

Claims (1)

[Scope of utility model registration request] A time information detection device for a pointer type watch, comprising: a metal code detection spring body that rotates at the same speed as the hour hand wheel; and a circuit board fixed to a clock frame, etc.; and the circuit board has an integrated code information board. the code detection spring body has a plurality of lead parts having spring properties; , the lead part is configured to rotate while contacting the code information board as the hour hand rotates, and turn on and off according to the code pattern formed on the surface of the code information board. Information detection device.