JPS58151579A - Electronic sandglass - Google Patents

Abstract

PURPOSE:To obtain display which is similar to a dropping state of sand of a mechanical sandglass, and also to electronize it completely, by placing display elements for generating 2 different colors, on the display faces placed on the upper and lower parts, and constituting so that a display color the display face of the upper side is shifted to the display face of the lower side, as time passes. CONSTITUTION:Upper and lower display faces 3, 4 which are symmetrical in the upper and lower parts and are in a state that the center parts are connected by a constricted part 2 are partitioned on one side of a sandglass body 1. In said each display face 3, 4, a lot of display elements 5, 5... are placed like a pyramid. As for the display elements 5, 5... in this case, for instance, a light emitting diode (LED) for generating 2 differenct colors of red and green in used. The upper side display element placed in the upper side display face 3 is constituted of a red LED36 and a green LED37. A lower side display element 45 placed in the lower side display face 4 is constituted of both a red LED46 and a green LED47 in the same way as the upper side display element 35.

Description

[Detailed description of the invention] The present invention relates to an electrically operated electronic hourglass.

As the name suggests, the existing hourglass is a device that connects a pair of upper and lower sand containers at a constriction, allows the sand in the upper container to fall into the lower container, and measures the falling time. .

The present invention electrically performs the operation of this hourglass, and will be described in detail below with reference to the drawings.

Fig. 41 is a perspective view of the hourglass of the present invention, in which the hourglass main body (1) has a straight-looking external shape, and the central part is vertically symmetrical and connected by a constriction (2) to one side of the hourglass body (1). The upper and lower display dij (31(4)) in the vertical shape are divided.In each of these display surfaces (3)(41, a large number of display elements t5)(5)... are arranged in a pyramid shape. The display element (51(5)...) used here is, for example, a light emitting diode (LED) that emits two colors of red and green.This display element (f5)(5)... The number of ... depends on the time measured as an hourglass, but each display screen 1
3) (10, 30, 60, 180, etc. for every 41, an integer fraction or an integer multiple of sexagesimal numbers would be suitable.

Next, the internal structure of the hourglass main body having a cut-off shape will be explained with reference to FIGS. 2 and subsequent figures. (to) (to)... are the upper display elements arranged in the upper display [ki (3), and the red LED (to) and green f! It is composed of 5 LEDs (total). (45) (45) ... is the lower display surface (
4) The lower display element disposed within the upper display element Cl
Similar to 9 (to)..., they are each composed of red L E O (46) and green L E D (47). fil
are these display elements (to) (to)..., (45) (
45) An integrated circuit that controls the display sieve of... which Lk, D of each upper display element (to) (to)...
(To) (To), (To) (To), etc. Controls the operation of the upper selector switch -〇3..., which switches on or off, and each lower display element (45) (45). Lower selector switch +141 (1
41... is controlled. (to) is a power source for supplying power to the integrated circuit U, which is connected to the ws product circuit α through the '#It#A switch a. αη represents the change in display color of each display element (to) (to)..., (45) (45)..., that is, from red lighting to green lighting, or conversely from green lighting to red lighting. It is configured by a posture switch that detects whether the hourglass body (1) is in a royal position or an inverted position.

An example of a specific configuration of this integrated circuit 01 is shown in FIG. ■ is an up-up/down counter provided corresponding to the upper display element (to) (to), etc., and counts up the number of stitches by 1 each time a pulse is supplied. , a countdown terminal (IW) which counts down the number of stitches by 1 each time a pulse is supplied, an up-reset terminal (UR) which sets the number of stitches to zero when a reset pulse is applied, and a countdown terminal (UR) which counts down the number of stitches by 1 each time a pulse is applied. It has a down-reset terminal (DR) that sets the count to its highest value.The number of hands of this counter is determined by the time measured by the hourglass on the ball, but for example, it is set to 1 second. The display type changes by 1 E every time, and if it is a 1 minute hand, it is 6o, and if it is a 3 minute hand, it is 18o.
The display shape changes by one every 1 or 3 seconds, and is determined depending on the performance function of the hourglass, such as 20° for a 1 minute hand and 60° for a 3 minute hand. (2) is a lower up-down counter provided corresponding to the lower display elements (45), (45), etc., and has exactly the same configuration as the above-mentioned upper up-down counter. The up terminal (vp') of the upper up/down counter ■ is connected to the down terminal (DIE) of the lower down counter Q11, and the down terminal (Z) F) of the upper counter ■ is connected to the down terminal (Z) of the lower counter Q11. At the same time, the up reset terminal (UR) of the upper counter ■ is connected to the down reset terminal (DH) of the lower counter all. down reset terminal CDR)
is connected to the up-reset terminal (UR) of the lower counter. ■ is a counting pulse source, which has a configuration in which the display state changes one by one every second, or a pulse of jHz, or one in which the display state changes by one every 3 seconds. For example, a pulse of 1/5 Hz is generated.

The stitch number pulse from this counting pulse is sent to each up terminal (UP) of each of the above-mentioned A and down counters ω (to) via the stitch number changeover switch (C) which is switched in conjunction with the control switch αη. , is applied to the down terminal (DIN') of the upper up/down counter ■, but when the hourglass body (1) is in the city position, the stitch count pulse from the stitch count pulse source ) and lower counter (
It is applied to the up terminal (UP) of the upper counter (2) and the up terminal (UP) of the lower counter (2) when it is in an inverted state.
-ru. @ is the above upper and lower up/down counter ■0
This is a reset pulse source for putting the into the reset state, and the reset pulse from this pulse source is the control switch aη.
Reset switch that changes in conjunction with (to)
The up-reset terminals (UR) and down-reset terminals (DR) of each of the up-down counters CIO
However, when the hourglass main body (1) is in the upright position I, the reset pulse is applied to the down reset terminal (Dlt) of the upper up/down counter (1) and the up of the lower counter @. This reset pulse is applied to the reset terminal (UR), and when it becomes inverted, this reset pulse is applied to the upper counter ■'s arrangement section terminal (UR) and the lower counter @'s down reset terminal (DR). be done.

(to) is the upper selector switch (1303...・The upper decoder gives the upper decoder, and of course, the lower display element (to) (to) depending on the number of stitches of the lower up/down counter @... ℃ Which LED (to) (b),... This is a lower decoder that supplies a control signal for turning on or off to the lower changeover switches (14) (141...).

Next, the operation will be explained. First, let us consider the situation ■ in which the hourglass body (1) is placed on the royal figure ■. The reset pulse from the reset pulse source @ is the reset switch (to)
is applied to the upper down reset terminal (DR) and the lower Azu preset terminal (UR) through the upper counter ω.
The content of iIk is set to be a high value, for example 60, and the content of the lower counter e211 is set to zero. As a result, the upper counter
The content of 60 is applied to the upper decoder j, and the upper changeover switch 113 (13... is turned on to red LItDc!@(to) ... Since the signal to turn it to the side is output from this decoder (to), all the red LEDs (to) of the upper display element (to) (to)... will light up 61A and the lower part will turn on. The zero content of the counter Q11 is applied to the lower decoder 1 of the lower 4111 display element (45) (4
5) All green L E D (47) (47)
Obtain the signal to light up the lower display screen (45)
(45)... Each green LED (47) (47)...
is the lighting condition. In that situation, the number of stitches is 1 < 1 from the Rusu source.
When the number t4 is supplied to each counter ω, the content of the upper counter ■ becomes 59, and the content of the lower counter @ becomes 1. Therefore, the content of each stitch number is applied to each decoder (to)@shi = is lit, and the lower display element (4) is applied.
5) A specific one of (45)..., specifically, the center one at the top of the lower display elements (45H45)... changes from green lighting to red lighting 1: Changes.

2nd) When the counting pulse is supplied to each counter ■@, the count content of each becomes 58.2, and as in the previous case, the top display element r (to) (to)... The center and the two adjacent to it will be displayed in green, and the lower 4M will be displayed instead.
Among the display elements (45) (45)..., the two at the center of the bottom row and the two adjacent to one of the display elements are illuminated in red.

Similarly, each time a counting pulse from the counting pulse source is supplied to each counter j@, the upper counter (1) changes the number of stitches by 1, and the lower counter (211 changes the counting content by 1). Increase each counter of sled and lever e!0
The double side display element Oe is sequentially displayed according to the count contents of c211.
(to)... are lit in green, and at the same time, the lower display elements (45), (45), etc. are lit in red. In the state ■ where 59 counting pulses are supplied, only the bottom of the upper display elements (to) (to)... is lit in red, the rest are all lit in green, and the lower display elements are lit in green. (45) Among (45)..., only the top end is lit green, and all others are lit red, and when the 600th counting pulse is supplied, each counter (2) becomes zero. , 60, all of the upper display elements (to) (to), etc. are lit in green, and all of the lower display elements (45), (45), etc. are lit in red.

Therefore, if the pulse frequency of the needle pulse source (support) is 1 Hz, after 60 seconds, the lower display element Oe (to)...
The red lights are all on the lower display element (45) (45)...
・If it ends up transitioning to 1/3H2,
All lower display elements (45) (45)... in 180 seconds
・ will change to a red light, and it will perform the exact same function as the functional hourglass that has existed since ancient times.

After 1 minute or 3 minutes have passed since the display was erected in this way, all the lower display elements (45) (45) are lit in red.
・If the next hourglass operation is required in a situation where the hourglass has moved to (45) The red lighting of (45)... shifts to the top display element town, and the hourglass operation is performed anew.

In addition, if it becomes necessary to interrupt the hourglass movement in the middle of the hourglass movement and restart the hourglass movement for 1 minute or 3 minutes, the hourglass body should be changed to an upright position. By turning the counter upside down when it is in operation, and by turning it into an upright position when it is inverted, the reset pulse from the reset pulse source @ resets each counter to its initial state. It is possible to immediately start the hourglass operation from the initial state.

In addition, in the above explanation, the initial state was considered such that all the lower display elements were lit in red and all the lower display elements were lit in green, but there is no problem even if the lighting color is reversed. Furthermore, the present invention is not limited to LEDs, and any display element that emits two different colors can be used. ! The display elements that emit different colors of S are arranged, and the display color on the upper display surface is transferred to the lower display surface as time progresses. A display similar to that of a road can be obtained, and this type of hourglass can be completely changed to 40. As a result, it is possible to create a bow that has no errors in timekeeping operation, and can quickly adapt to any shape without being subject to the structural constraints of existing hourglasses. You can also obtain something that is excellent in terms of physical strength.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the electronic hourglass of the present invention, FIG. ,(2)
(3) and (4) are the display surface, (5) is the display element, (I is the circuit, αη is the control switch, cI)
2 shows a counter, (2) a counting pulse source, (2) a reset pulse source, (to) an upper display element, and (45) an F-side display element, respectively. Figure 1 Figure 2

Claims (2)

[Claims] (1) The main body has an external shape that allows it to stand upright and inverted, and is vertically symmetrical on at least one side, with the central part connected by a constriction.
A pair of upper and lower display surfaces are partitioned, and display elements that emit two different colors are arranged in each of the upper and lower display surfaces, and in the initial state (■), the display element located on the upper side All display elements on the surface are lit with the -1 display color, and all display elements on the lower display surface are lit with the other display color, and as time passes, At the same time, the display color of the display element located on the upper side is changed one by one to the other display color at a fixed time interval, and at the same time, the display color of the display element located on the lower side is synchronized one by one with the color change of the above display element on the upper side. An electronic hourglass featuring a screen that changes the display color to -1. (2) The electronic hourglass according to claim 111rj1, wherein the display element is constituted by a light emitting diode that emits red and green colors.