CN2201687Y

CN2201687Y - Clock and watch having discontinuous digital window to display time

Info

Publication number: CN2201687Y
Application number: CN 93244021
Authority: CN
Inventors: 胡新国
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-11-07
Filing date: 1993-11-07
Publication date: 1995-06-21
Anticipated expiration: 2003-11-07

Abstract

The utility model provides a clock, which is driven by gears and displays time by a discontinuous digital window. The utility model is characterized in that by a pair of incomplete gears, a second hand shaft drives a wheel shaft fixed with a digital disk of minute units; by a pair of incomplete gears, the wheel shaft with the minute units drives a wheel shaft fixed with a digital disk of minute tens digits; by a pair of incomplete gears, the wheel shaft with the minute tens digits drives a wheel shaft fixed with a digital disk of hour digits. All digital discontinuity is synchronously completed in a few seconds by the intermittence of incomplete gear drive, the radial relation among the wheels, and the relation among the gears. The problem that errors easily occur when the time is watched is solved.

Description

Clock and watch having discontinuous digital window to display time

The utility model relates to gear drive, uses clock, the table of digital demonstration time of sudden change, comprises quartzy class and mechanical.

Existing clock, table are with the set of locations incompatible demonstration time of three pointers on the card scale, this mode reading is cumbersome, is easy to make mistakes, and a little hasty or carelessness all can cause whole hour poor, for the little wrist-watch of card with see table night, more inconvenient.

The purpose of this utility model is to replace pointer to simplify time showing with numeral, and it is come into plain view.

Above-mentioned purpose realizes by following structure: dynamic action is on driving gear, drive second hand through the two-stage speed change, one driving gear and a driven partial gear are arranged on the second hand axle, driven partial gear drives minute units dial by another partial gear, minute units dial place wheel shaft drives minute tens dial by partial gear, and minute tens dial place wheel shaft drives the hourage dial by partial gear again.A window with amplification in each dial mapping.The intermittence of partial gear transmission makes the clear display, complete, very clear of time.

The utility model has adopted incomplete gear mechanism, and is simple in structure, and part is less than existing table, such as existing quartz watch from power wheel then pinwheel need six grades of speed changes altogether, 12 gears, and second hand, minute hand, the same axle center of hour hands rotate respectively.Improve the back and only need Pyatyi speed change totally 10 gears, avoided three, can design multiple card according to the various combination of numerical aperture and second hand simultaneously with the phenomenon of wholeheartedly rotating respectively.

Embodiment and accompanying drawing thereof below in conjunction with a quartz watch and a stem-winder are described in further detail utility model.

Fig. 1 is the watch face synoptic diagram.

Fig. 2 is the synoptic diagram of three dials.

Fig. 3 is the fundamental diagram of a pair of partial gear.

Fig. 4 is a quartz watch example structure schematic diagram.

Fig. 5 is-stem-winder example structure schematic diagram.

Fig. 6 is the A-A sectional view among Fig. 4.

With reference to Fig. 4, periodically dynamic action drives second hand (16) through wheel (5), wheel (6), wheel (7), second hand axle (I) on wheel (4).Trailing wheel (4) is complete gear to (7).Wheel (7) is transferred to axle (II) through wheel (8), wheel (9); Between figure axis (II) and the axle (V) is friction gearing.The later transmission of second hand axle (I) is by the partial gear intermittently-driving.Fig. 3 is the synoptic diagram of a pair of partial gear.A tooth is arranged on the driving wheel (4), and engaged wheel (5) is gone up uniform 8 between cog.Wheel (4) changes 8 and changes, and wheel (5) only changes 1 and changes.Between wheel (5) down-time period, two wheel rims have the locking arc, preventing wheel the moving about of (5), and play the role of positioning.Said in this explanation " corner " is angle θ shown in Figure 3, i.e. driving wheel (4) angle that is meshed and turns over engaged wheel (5) each time; " rear side point " is the A point that turns to shown in Figure 3.The transmission of partial gear has following relationship: r4/r5=θ 5/ θ 4.Wheel (8), wheel (9) are a pair of partial gear among Fig. 4.On the wheel (8) tooth is arranged, the engaged wheel that is meshed with it (9) is gone up uniform 10 between cog, rotational angle theta 9=360/10=36 degree.Axle (V) is a minute units dial wheel shaft, is fixed with a minute units dial (1) on it, structure shown in Fig. 2 (a), uniform from " 0 " to " 9 " totally 10 numerals on it.Compare r8:r9=1:1 if suppose the wheel (8) and the pitch radius of wheel (9), according to r8/r9=θ 9/ θ 8 driving wheel (8) rotational angle theta 8=36 degree as can be known, wheel (8) turns over rotational angle theta 8 a required times t=60/360 * 36=6 second, and meanwhile wheel (9) rotates 36 degree.Be that dial (1) rotated once in per 60 seconds, each numeral sudden change was finished in 6 seconds.By following analysis as can be known, all numeral sudden changes were all finished in 6 seconds.The numeral mutation time can be taken turns the pitch radius of (8) and wheel (9) than shortening by change.Wheel (9) is taken turns (10), wheel (11) drive minute tens wheel shaft (III) through a pair of partial gear.A tooth is arranged, rotational angle theta 10=36 degree on the wheel (10); The engaged wheel that is meshed with it (11) is gone up uniform 12 between cog, rotational angle theta 11=360/12=30 degree.The pitch radius of wheel (10) and wheel (11) is than r10:r11=θ 11: θ 10=1:1.2.Be fixed with a minute tens dial (2) on minute tens wheel shaft (III), structure shown in Fig. 2 (b), uniform two from " 0 " to " 5 " totally 12 numerals on it.It is to rotate once in per ten minutes that dial (2) whenever circles at wheel (10).Wheel (11) is taken turns (12), wheel (13) drive hourage wheel shaft (IV) through a pair of partial gear.Wheel (12) is gone up uniform bidentate, rotational angle theta 12=30 degree, and the engaged wheel that is meshed with it (13) is gone up uniform 12 between cog, rotational angle theta 13=360/12=30 degree.Wheel (12) is r12:r13=θ 13 with the pitch radius ratio of wheel (13): θ 12=1:1.Be fixed with hourage dial (3) on the hourage wheel shaft (IV), structure is evenly equipped with from " 1 " to " 12 " totally 12 numerals on it shown in Fig. 2 (c).Dial (3) rotated once at wheel (12) revolution half cycle in promptly per 60 minutes.On dial plate, have three windows with above-mentioned three dial correspondence positions with amplification, on second hand axle (I), draw second hand (16) simultaneously, as shown in Figure 1.The time that Fig. 1 shows is " 11: 42: 35 ".In the present embodiment, the verifying unit of time part still adopts the matching relationship of former table, as shown in Figure 6, is friction gearing between axle (II) and the axle (V), and external force acts on the pull bar 0, through wheel (14), wheel (15) three dials is proofreaded.Fig. 5 is a stem-winder transmission synoptic diagram.The lasting energy of clockwork spring is delivered to wheel (11) through wheel (5), wheel (6), wheel (7), wheel (8), wheel (9), wheel (10) on wheel (4), wheel (11) is by escapement control, intermittently-driving.Trailing wheel (4) is complete gear to wheel (11).Wherein take turns (9) and second hand (16) coaxial (I).On axle (I), establish a partial gear (12), draw intermittently-driving thus.The same quartz watch of its later transmission.

The installation of dial preferably makes the rear side point (with respect to rotation direction) of lowest numeric " 0 " corresponding to the active gear teeth, in the hope of rotational synchronization.As dial (2) last two " 0 " (Fig. 2 (b)) on a diameter, the last 2 tooth rear side points of driving wheel (12) are also on a diameter, these two straight lines are corresponding as far as possible up and down, finish sudden change so that dial (2) is gone up when " 0 " occurring simultaneously on the dial (3).To dial (1) and driving wheel (10) also in like manner.The installation of second hand should be pointed to the rear side point of driving wheel (8) gear teeth.Like this, the sudden change of all numeral is when " 0 " appears in the last digit dish when pointing to " 0 " (or second hand) all, finishes synchronously, and waiting status does not appear in the centre.

Claims

1, dial plate by the band window, minute units dial (1), minute tens dial (2) hourage dial (3), second hand axle (I), minute units wheel shaft (V), minute tens wheel shaft (III), the gear drive that hourage wheel shaft (IV) and incomplete gear mechanism are formed, device with the sudden change digital demonstration time, it is characterized in that the partial gear (8) on the second hand axle (I) is meshed with the partial gear (9) of axle on (II), minute units wheel shaft (V) is gone up partial gear (10) and is gone up partial gear (11) with minute tens wheel shaft (III) and be meshed, axle (III) go up partial gear (12) and hourage wheel shaft (IV) upward partial gear (13) be meshed.

2,, it is characterized in that a minute units dial (1) is fixed on the axle (V), uniform from " 0 " to " 9 " totally 10 numerals on it by the device with the digital demonstration time of sudden change of claim 1 regulation; Minute tens dial (2) is fixed on the axle (III), uniform two from " 0 " to " 5 " totally 12 numerals on it; Hourage dial (3) is fixed on the axle (IV), uniform from " 1 " to " 12 " totally 12 numerals on it.

3, by the device with the digital demonstration time of sudden change of claim 2 regulation, it is characterized in that position corresponding with dial (1) dial (2) dial (3) on watch face has window display figure.

4, the device of stipulating by claim 2 with the digital demonstration time of sudden change, it is characterized in that establishing on the second hand axle (I) partial gear (8), has only individual tooth on it, the engaged wheel that is meshed with it (9) is gone up uniform 10 between cog, is the friction transmission between the axle (II) of wheel (9) and the axle (V) of minute units dial (1).

5, the device of stipulating by claim 4 with the digital demonstration time of sudden change, it is characterized in that establishing a partial gear (10) on the axle (V), one tooth is arranged on it, the engaged wheel that is meshed with it (11) is gone up uniform 12 between cog, the two-wheeled radius ratio is 1:1.2, and wheel (11) drives minute tens dial (2) through axle (III).

6, the device of stipulating by claim 5 with the digital demonstration time of sudden change, it is characterized in that establishing a partial gear (12) on the axle (III), uniform bidentate on it, the engaged wheel that is meshed with it (13) is gone up uniform 12 between cog, the two-wheeled radius ratio is 1:1, and wheel (13) drives hourage dial (3) through axle (IV).

7, the device of stipulating by claim 6 with the digital demonstration time of sudden change, it is characterized in that going up complete gear (15) with the complete gear (14) that the flexible fit of time check and correction pull bar (0) connects with axle (V) is meshed, and can proofread dial by pull bar (0).