JPS60224083A - Time detector - Google Patents

Abstract

PURPOSE:To reduce the size of a 12-hour wheel by constituting four contact pieces which are provided at 90 deg. intervals on a concentrical circle in such a way that said pieces contact successively with the conductive parts provided in the 1st, 3rd, 4th, 6th, 11th and 12th positions among the 12 positions arrayed at 30 deg. intervals on the circumference of the 12-hour wheel. CONSTITUTION:The conductive part 4 is formed in the 11th, 12th and 1st positions among the positions arrayed at 30 deg. intervals on the circumference of the 12-hour wheel 12, the conductive part 5 in the 3rd and 4th positions and the conductive part 6 in the 6th position, respectively and are conducted respectively to a common conductive part 3. The contact pieces P1-P4 are provided in the positions of 90 deg. intervals on the circumference of the wheel 2 and are held in contact with each other. The common contact piece P0 is held in contact the part 3. The pieces P1-P4 contact differently with the parts 4-6 each time according to the rotation of the wheel 2 so that the different signals are emitted. The parts 4-6 are thus made compact and therefore the radius of the wheel 12 is made smaller.

Description

[Detailed description of the invention] The present invention relates to a time detection device such as a clock.

In conventional devices of this kind, 4 digits corresponding to binary codes from 1 to 12 are placed on the plane of a 12-hour wheel that rotates synchronously with the hour hand.
A heavy concentric pattern electrode film is formed, and each pattern ′
Four contact pieces were lined up in contact with the electrode membrane. Since patterned electrode films on four concentric circles are required, the radius of the 12-hour vehicle must be increased, and the distance between adjacent patterned electrode films in the radial direction may not be sufficiently large, which may cause errors. The drawback is that it is easy to cause contact.

An object of the present invention is to simplify the structure of the guide tS without the risk of erroneous contact of the quadruple parts even if the radius of the 12-hour car is small. .

A feature of the invention is that 60 units are placed on one concentric circle on the vehicle for 12 hours
Among the positions from 1 to 12 arranged at intervals,
1: A conductive part is formed at each position of #, No. 5, No. 4, No. 6, No. 11, and No. 12, and four contact pieces are provided in contact with each other at 90 degree intervals on the concentric circle. At that time [6ru. The conductive parts formed in each part 1& may be formed separately, or the conductive parts at adjacent positions may be made continuous to form one conductive part.

An embodiment of the present invention will be described. As shown in Fig. 1.2, a conductive portion is formed on the upper surface of the 12-hour wheel 2, which is provided so as to be interlocked with the hour wheel 1, which rotates once every 12 hours. That is, the common conductive part 3 is arranged around the hour hand axis 1a.
is formed. On one concentric circle on the 12-hour car 2, there are positions 1 to 12 at intervals of 30 degrees ■ to 0,
Among these, conductive parts 4, 5.6 are formed at positions 1, 5, 4 @, 6, 11, and 12 (■, (, ■, ■, 0.0). The conductive part 4 is formed continuously at positions ■, ■, and o, the conductive part 5 is formed continuously at positions ■, ■, and the conductive part 6 is formed at position ■. The conductive parts 4, 5.6 are electrically connected to the common conductive part 6.

A common contact piece P is provided on the common conductive part 3. are extended and their tips are facing each other. 9 on the above concentric circle on car 2 for 12 hours
At the positions at 0 degree intervals (positions ■, ■, ■, ■ in the first figure), contact pieces "l+Pt+pH+P4 extend and their tips are in contact with each other.

With such a configuration, if the position in FIG. 1 is set to the 12 o'clock position, only the contact piece P4 is in contact with the guide ridge 4, so from the contact piece Pl + "2 * P 3 + P4 A signal "0001" is generated at 12 o'clock in FIG. 3, thereby detecting the time of 12 o'clock.

When the hour hand wheel 1 rotates 30 degrees clockwise in FIG. Since the contact pieces P and ~P4 generate a signal of 1100'', the time of 91 o'clock is detected.In the same way, every time the hour hand advances by 1 hour, the wheel 2 changes to 60 degrees for 12 hours. The rotating contacts 4, 5 and 6 produce signals such as those shown in FIG. 5 from 2 o'clock to 11 o'clock, thereby detecting each time.

In this example, the conductive parts 4 and 5 are located at a plurality of positions 0°0, ■
Since n and (1) and (2) are each continuous as one conductive part, manufacturing is simplified.

As described above, according to the present invention, since the conductive parts are lined up only on one circumference on the 12-hour car, the radius of the 12-hour car can be made small, and the contact pieces are positioned at 90 degree intervals. Coupled with this, there is no possibility of erroneous contact occurring, accurate time detection is possible, and since the structure of the conductive part is simple, manufacturing is easy and costs can be reduced.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a plan view of the main parts, FIG. 2 is a cross-sectional view taken along the line II in FIG. 1, and FIG. 6 is an explanatory diagram showing each time detection issue. 2...12 hour car, ■, ■, ■, ■, 0.0...1 inspector, 5th, 4th. 6th, 11th + 124I positions, 6 ...Co-r::y$ part, 4.5.6...Conductive part, Po...Common contact piece, "I + Pt +"3 + P4 ....piece.Applicant: Seikosha Co., Ltd.
figure

Claims (1)

[Claims] (1) Among the positions 1 to 12 @ 1 arranged at 60 degree intervals on the circumference of the driver for 12 hours, 1st, 3rd, 4th,
A time detection device comprising a conductive part formed in each of No. 6, No. 11, and No. 12 No. 1, and four contact pieces facing each other at positions 90 degrees apart on the concentric circle. (2. In claim 1, one conductive part continuous to the 11th, 12th, and 1st positions, and one conductive part continuous to fc, 3rd, and 4th positions are the same) A time detection device characterized in that it has a t-form.