JP2000132087A - Timepiece for learning - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a timepiece for learning which enables a learner to easily recognize the time that elapses and more particularly the hour. SOLUTION: This timepiece for learning is constituted by forming a hour hand and minute hand respectively mounted at a shaft of inner and outer double structure penetrating the center of a timepiece dial in such a manner that both are rotated by the rotating manipulation of a manipulation dial 11 while having a prescribed relation. The hour hand and minute hand are respectively so formed that the numerals of the hour and minute indicated by the respective hands among the numerals of the hour and minute respectively displayed at an hour display intermittent gear 29 and a minute display disk 28 appear at the display window of the timepiece main body respectively cooperatively with the movements of the hour hand and the minute hand. The timepiece is provided with a positioning member 31 for elastically pressing the branch teeth 30 of the hour display intermittent gear intermeshed with one pawl 27 disposed at the minute display disk from the outside thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a learning clock used for teaching school children and infants of lower grades how to read time.

[0002]

2. Description of the Related Art Conventionally, learning clocks as shown in FIGS. 7 to 9 are used to teach first-grade and second-grade elementary school children how to read the time on a clock.

[0003] That is, in FIGS. 7 to 9, reference numeral 1 denotes a timepiece main body, 2 denotes a cylindrical outer shell made of resin, and 3 denotes a pedestal formed integrally therewith. Is divided into a front space portion 5 and a rear space portion 6 with a partition wall 4 provided in the middle in the depth direction. In the same manner as a general-purpose clock, a minute scale and a time numeral are displayed on the outer periphery of a clock dial 7 attached to the front space portion 5, and a minute hand 8 and an hour hand 9 are arranged at the center. The front surface is closed by a transparent resin cover 10.

[0004] Reference numeral 11 denotes an operation dial part of which protrudes from the peripheral surface of the cylindrical outer shell 2. A pinion 12 fixed at the center of the operation dial meshes with an intermediate gear 13.
Reference numeral 3 denotes a minute gear 14, and a pinion 15 fixed to the center of the intermediate gear 13 meshes with a hour gear 16, respectively. In the cylindrical portion 17 fixed to the center of the hour gear 16, the minute gear Front shaft 1 protruding forward from the center of 14
8 is rotatably inserted, and among the shafts of the inner and outer dual structures penetrating the center of the timepiece dial 7,
The base of the minute hand 8 is attached to the front shaft 18 and the cylindrical portion 17.
, The base of the hour hand 9 is inserted and fixed.

When the operation dial 11 is rotated left and right, the intermediate gear 13 meshing with the pinion 12 of the operation dial 11 rotates in the same direction. By the rotation of the intermediate gear 13, the minute gear 14 meshing with the intermediate gear 13 and the hour gear 16 meshing with the pinion 15 of the intermediate gear 13 respectively rotate, and the minute hand 8 and the hour hand 9 rotate in a predetermined relationship. Then, the time pointed by the minute hand 8 and the hour hand 9 at this time was read by the minute scale and the time number displayed on the outer periphery of the clock dial 7 so that the user could understand it.

However, in the above-mentioned conventional learning watch,
The clock face 7 must be placed so that it can be seen from the school children side, so that the teacher who operates the operation dial 11 cannot see the movements of the minute hand 8 and the hour hand 9, and every time the time is reset, the clock It is necessary to check the dial 7 by turning it over, or to look into the clock dial 7 from the front (the side where the child is), which is a problem that the operation is difficult.

In general, a learning watch of this type has a means for checking the time other than the clock face 7 only by rotating the minute hand 8 and the hour hand 9 in a predetermined relationship. Even if you try to learn on your own, the clock face (minutes)
Because there is no display, the question that the minute hand is pointing to the minute, or if the hour hand is between the letters (hour numbers), it is not clear what the time is, raises the problem of motivation to learn. There was a point.

In order to solve such a conventional problem,
The applicant previously displays the time indicated by the respective hands in numerical hours and minutes at predetermined positions of the watch main body 1 as shown in FIGS. 10 to 12 in conjunction with the movement of the hour hand and the minute hand. We have applied for a learning watch in which a display unit is provided on the hour gear and the operation dial, respectively, and the numbers appear in an opening provided in the watch body.

That is, in FIG. 10 to FIG.
Reference numeral 9 denotes a minute number from “0” to “55” provided on the back surface of the operation dial 11 and is displayed at equal intervals on a coaxial circumference near the outer periphery of the operation dial 11. As shown in FIG. 11, on the back surface of the hour gear 16, hour numerals 20 from "1" to "12" are displayed at equal intervals on a coaxial circumference near the outer periphery thereof.

Then, on the partition wall 4 of the timepiece body 1,
As shown in FIG. 12, one minute numeral 19 is placed at a position corresponding to the minute number 19 displayed on the back surface of the operation dial 11.
A minute display window 21 is opened so that only one hour numeral 20 can be visually recognized at a position corresponding to the hour numeral 20 displayed on the back surface of the hour gear 16.
2 is open.

Reference numeral 23 denotes a sheet formed of cardboard or a resin plate to have the same shape as the inner shape of the cylindrical outer portion 2. The sheet 23 has a minute display window 2 for the minute numeral 19.
When the portion corresponding to the hour display window 22 for 1 and the hour numeral 20 is open, the arrow-shaped markers 24 and 25 toward the minute and hour display windows 21 and 22, respectively, , 25, the characters "Non no Mado" and "Nan no Mado" are displayed, respectively.

When the operation dial 11 is rotated by one turn, the minute hand 8 is rotated once (36 times) as in a general-purpose timepiece.
After 60 minutes, the hour hand 9 rotates by 30 degrees and advances by one hour. When the minute hand 8 and the hour hand 9 are set at desired times, a minute display window 21 provided on the back side of the timepiece body 1 displays the timepiece 7 indicated by the minute hand 8.
The minute number 19 corresponding to the minute is displayed, and the hour display window 2
The numeral 2 indicates an hour numeral 20 corresponding to the time of the clock dial 7 pointed by the hour hand 9.

With such a configuration, the time pointed by the minute hand 8 and the hour hand 9 can be recognized even when the learning instructor operates the operation dial 11 from the back side of the watch main body 1, and the time is displayed by a number. Therefore, there is an effect that the children can easily understand each other, and it is also possible for the children to learn each other or independently.

[0014]

However, when the operation dial 11 is rotated, the minute number 19 displayed on the back side is continuously displayed on the minute display window 21, so that the minute hand 8 is now pointing. Minutes are easy to read. However, between the hour number indicating the first hour and the hour number indicating the next hour, the hour number 20 is not displayed in the hour display window 22, or the first hour number or a part of the next hour number. Is displayed in the hour display window 42, and there is a problem that it is difficult to read.

That is, the hour gear 16 also rotates slowly with the rotation of the operation dial 11, and the operation gear 11 makes one rotation (360 degrees), so that the hour gear 16 becomes 1/1.
It makes two rotations (30 degrees).
From the time when the minute number displayed on 1 starts displaying 50 to 55, the hour number displayed on the back of the hour gear 16 gradually starts to disappear from the hour display window 22 and the minute number displayed on the minute display window 21 Is displayed in the hour display window 22 for the first time when a number from 55 to 0 is displayed, which makes it difficult to read.

[0016]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and the present hour number is maintained until the minute number displayed in the minute display window becomes zero. It is intended to provide an easy-to-read thing by displaying the next hour numeral in the hour display window only when the minute number continues to be displayed in the hour display window and the minute number has passed through 55 and has been displayed as 0. The gist is that the minute hand and the hour hand attached to the shaft of the inner and outer dual structure penetrating the center of the clock face, respectively,
It is formed so as to rotate with a predetermined relationship via the minute gear and the hour gear by rotating the operation dial. In addition, a minute indicating disc fixed coaxially to the back surface of the minute gear via a short cylindrical portion. Of the minute and hour numbers respectively displayed on the hour display intermittent gear that intermittently rotates by 30 degrees by meshing with one claw projecting in the diameter direction from the short cylindrical portion, the minute and hour numbers indicated by the hands are shown. A first invention relating to a learning timepiece, comprising a positioning member formed so as to appear in a display window of the timepiece body, and elastically pressing a branch tooth of the time display intermittent gear from outside thereof; The minute hand and the hour hand respectively attached to the shaft of the inner and outer dual structure penetrating the center of the dial are formed so as to rotate with a predetermined relationship via the minute gear and the hour gear by rotating the operation dial. The back of the operation dial Of the minute number displayed on the side and the number displayed on the intermittent gear when the intermittent rotation is performed by 30 degrees by engaging with one claw projecting in the diameter direction from the short cylindrical portion fixed to the back surface of the minute gear. The hour / minute numerals indicated by the respective hands are formed so as to appear in the display window of the timepiece body, and a positioning member is provided for elastically pressing the branch teeth of the hour display intermittent gear from outside thereof. The present invention lies in a second invention relating to a learning clock to be executed.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings. In the drawings, the same functional components as those shown in FIGS. 7 to 12 are denoted by the same reference numerals, and the description thereof will not be repeated, and only different points will be mainly described in detail below.

1 to 6, reference numeral 11 denotes an operation dial part of which protrudes from the peripheral surface of the cylindrical outer shell 2, and a pinion 12 fixed to the center thereof is an intermediate gear 13
The intermediate gear 13 is engaged with the minute gear 14 and the pinion 15 fixed to the center of the intermediate gear 13 is
6, respectively.

Reference numeral 26 denotes a short cylindrical portion fixed to the back surface of the minute gear 14 and having the same diameter as the minute gear 14. One claw 27 protrudes from a part of the peripheral surface of the short cylindrical portion 26 in the diameter direction. , The short cylindrical portion 26 and the large-diameter short cylindrical portion 2 fixed to the back surface thereof.
As shown in FIG. 3, minute display discs 28 having minute numbers 19 of "0" to "55" displayed at equal intervals on the back surface are fixed through the 6A. And the claw 2
Reference numeral 7 meshes with a branch tooth 30 of the time display intermittent gear 29 described later.

Reference numeral 29 denotes an intermittent gear which is rotatably arranged and has twelve branched teeth 30 on its outer periphery.
Are radially projected at equal intervals. The teeth 27 mesh with the claws 27 between the two teeth 30a and 30b of the branch teeth 30, and the hour display intermittent gear 29 rotates intermittently (1/12) by the rotation (one rotation) of the claws 27. Rotate. At this time, on the back surface of the display intermittent gear 29, as shown in FIG. 4, hour numbers 20 from "1" to "12" are displayed at equal intervals.

Reference numeral 31 denotes an inverted T-shaped positioning member installed around the hour display intermittent gear 29.
Free rotation of the two teeth 30 of each branch tooth 30
a and 30b, which are to always mesh with the claw 27, a band-shaped portion 32 made of resin and provided with an elastic force, and a protruding portion protruding from the center of the rear surface of the band-shaped portion 32 33 mainly.

Numeral 34 is a flat portion formed at the center of the strip-shaped portion 32, and has a length that allows the tips of the two branch teeth 30A and 30B adjacent to the intermittent hourly gear 29 to contact at the same time. The projecting portion 33 is provided with a guide / fixing slot 35, and the end portions of the strip-shaped portion 32 are provided with guide slots 36, 36, respectively.

Pins 37, 38 which stand upright from the partition wall 4 are inserted into the slots 35, 36, respectively, and the pins 3 which stand upright in the guide / fixing slot 35, respectively.
7, the positioning member 3
1 is mounted at a position close to the hour display intermittent gear 29. In this case, the flat portion 34 has a light elastic force and the two branch teeth 30 adjacent to the time display intermittent gear 29.
Since the tips of A and 30B are pressed, the hour display intermittent gear 29 always stops at a predetermined position and does not rotate carelessly.

Reference numeral 21 denotes a minute display window formed in the partition wall 4 of the timepiece main body 1, which is formed at a position corresponding to the minute numeral 19 displayed on the back surface of the minute display disk 28. The opening allows only the numeral 19 to be viewed. At the position corresponding to the hour numeral 20 displayed on the back of the hour display intermittent gear 29, an hour hour display window 22 through which one hour numeral 20 can be visually recognized is opened. For other points, see FIG.
12 to FIG. 12, and a detailed description thereof will be omitted.

When the operation dial 11 is rotated right or left, the intermediate gear 13 meshing with the pinion 12 of the operation dial 11 is rotated left or right. The rotation of the intermediate gear 13 causes the minute gear 14 meshing with the intermediate gear 13 and the hour gear 16 meshing with the pinion 15 of the intermediate gear 13 to rotate clockwise or counterclockwise, respectively. In the right or left direction.

When the minute gear 14 makes one rotation,
Claw 27 protruding from short cylindrical portion 26 of minute gear 14
The rotation of the claw 27 also makes one rotation, but due to the rotational movement of the claw 27, the branch teeth 30 (either one of the tooth portions 30a and 30b) of the time display intermittent gear 29 meshing with the claw 27 in the state shown by the solid line in FIG. Extrude. As a result, the time display intermittent gear 2
Numeral 9 rotates by one tooth and stops in the state shown by the dashed line. Thereafter, the same operation as described above causes the hour display intermittent gear 29 to rotate by 30 degrees (for one hour) every time the minute gear 14 makes exactly one rotation (elapse of 60 minutes).

At this time, the adjacent two branch teeth 30A and 30B of the hour display intermittent gear 29 are simultaneously elastically in contact with the flat portion 34 of the positioning member 31 and are stationary. When one of the teeth rotates by one tooth, the tip of one branch tooth 30 pushes the flat portion 34 upward as shown by a dashed line. And the time display intermittent gear 2
9 rotates by one tooth, and one branch tooth 30 becomes a flat portion 34.
Of the positioning member 31, the flat portion 34 of the positioning member 31 returns to the state shown by the solid line, and the two adjacent branch teeth 30
A, the position where 30B became the state shown by the solid line, that is,
The hour display intermittent gear 29 stops at the same position as before the operation.

In this case, the hour display intermittent gear 29 freely rotates without being restrained by the positioning member 31, and as shown in FIG.
Assuming that the branch teeth 30 are stationary in the state shown by the one-dot chain line, the one tooth portion 30b of the branch tooth 30 is outside the rotation trajectory of the claw 27. The meshing with the branch teeth 30 is disengaged. As a result, the claw 27 is located at the two adjacent branch teeth 30A and 30B,
The predetermined relationship between the time display intermittent gear 29 and the minute gear 14 is broken.

By the above operation, the predetermined hour numeral 20 displayed on the back surface of the hour display intermittent gear 29 continues to be displayed in the hour display window 22 until 60 minutes have elapsed since the minute gear 14 has just made one rotation. As soon as 60 minutes have passed after the gear 14 has just made one revolution, the next hour numeral 20 is displayed in the hour display window 22 in the hour display window 22. At this time, the minute display disk 28 coaxially fixed to the back surface of the minute gear 14 also rotates together with the minute gear 14, and the minute number 19 displayed on the back surface of the minute gear 14 becomes the minute display disk 28. Are continuously displayed on the minute display window 21 with the rotation of.

In the above embodiment, when the minute indicating disk 28 is coaxially mounted via the short cylindrical portion 26 and the large-diameter short cylindrical portion 26A fixed to the back surface of the minute gear 14, the minute indicating In the above description, the minute numbers 19 of "0" to "55" are displayed at equal intervals on the back surface of the disk 28, but the minute display disk 28 is not provided, and in FIGS. As shown in the drawing, the operation dial 11 may be provided with minute numerals 19 ranging from “0” to “55”. The operation of each member in this case is as described above.

[0031]

Since the learning timepiece according to the present invention has the above-described configuration, the hour hand does not move until 60 minutes have elapsed after the minute hand has made one revolution, and at the same time the minute hand has made one revolution, the next time. Since the hour numeral is displayed in the hour display window, the time, particularly the hour, can be easily grasped.

[Brief description of the drawings]

FIG. 1 is a front view of a learning timepiece according to the present invention with a transparent cover and a timepiece dial removed.

FIG. 2 is an exploded perspective view showing an internal mechanism of the timepiece.

FIG. 3 is a back view of the minute display disk of the timepiece.

FIG. 4 is a back view of an hour display gear of the timepiece.

FIG. 5 is a rear view of the watch.

FIG. 6 is a front view illustrating the operation of the timepiece.

FIG. 7 is an exploded perspective view of a conventional learning watch.

FIG. 8 is a rear view of the timepiece.

FIG. 9 is an exploded perspective view of an internal mechanism of the timepiece.

FIG. 10 is a rear view of the operation dial displaying minute numbers of the timepiece.

FIG. 11 is a rear view of the hour gear displaying hour numerals of the timepiece.

FIG. 12 is a rear view of a different timepiece.

[Explanation of symbols]

 7 clock dial 8 minute hand 9 hour hand 11 operation dial 14 minute gear 16 hour gear 19 minute number 20 hour number 21 minute display window 22 hour display window 26 short cylindrical part 27 claw 28 minute display disk 29 hour display intermittent gear 30 branch teeth 31 Positioning member 32 Strip shape part 33 Projection part

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[Procedure amendment]

[Submission Date] September 6, 1999 (September 9, 1999)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of the Invention] Learning clock

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a learning clock used for teaching school children and infants of lower grades how to read time.

[0002]

2. Description of the Related Art Conventionally, learning clocks as shown in FIGS. 7 to 9 are used to teach first-grade and second-grade elementary school children how to read the time on a clock.

[0003] That is, in FIGS. 7 to 9, reference numeral 1 denotes a timepiece main body, 2 denotes a cylindrical outer shell made of resin, and 3 denotes a pedestal formed integrally therewith. Is divided into a front space portion 5 and a rear space portion 6 with a partition wall 4 provided in the middle in the depth direction. In the same manner as a general-purpose clock, a minute scale and a time numeral are displayed on the outer periphery of a clock dial 7 attached to the front space portion 5, and a minute hand 8 and an hour hand 9 are arranged at the center. The front surface is closed by a transparent resin cover 10.

[0004] Reference numeral 11 denotes an operation dial part of which protrudes from the peripheral surface of the cylindrical outer shell 2. A pinion 12 fixed at the center of the operation dial meshes with an intermediate gear 13.
Reference numeral 3 denotes a minute gear 14, and a pinion 15 fixed to the center of the intermediate gear 13 meshes with a hour gear 16, respectively. In the cylindrical portion 17 fixed to the center of the hour gear 16, the minute gear Front shaft 1 protruding forward from the center of 14
8 is rotatably inserted, and among the shafts of the inner and outer dual structures penetrating the center of the timepiece dial 7,
The base of the minute hand 8 is attached to the front shaft 18 and the cylindrical portion 17.
, The base of the hour hand 9 is inserted and fixed.

When the operation dial 11 is rotated left and right, the intermediate gear 13 meshing with the pinion 12 of the operation dial 11 rotates in the same direction. By the rotation of the intermediate gear 13, the minute gear 14 meshing with the intermediate gear 13 and the hour gear 16 meshing with the pinion 15 of the intermediate gear 13 respectively rotate, and the minute hand 8 and the hour hand 9 rotate in a predetermined relationship. Then, the time pointed by the minute hand 8 and the hour hand 9 at this time was read by the minute scale and the time number displayed on the outer periphery of the clock dial 7 so that the user could understand it.

However, in the above-mentioned conventional learning watch,
The clock face 7 must be placed so that it can be seen from the school children side, so that the teacher who operates the operation dial 11 cannot see the movements of the minute hand 8 and the hour hand 9, and every time the time is reset, the clock It is necessary to check the dial 7 by turning it over, or to look into the clock dial 7 from the front (the side where the child is), which is a problem that the operation is difficult.

In general, a learning watch of this type has a means for checking the time other than the clock face 7 only by rotating the minute hand 8 and the hour hand 9 in a predetermined relationship. Even if you try to learn on your own, the clock face (minutes)
Because there is no display, the question that the minute hand is pointing to the minute, or if the hour hand is between the letters (hour numbers), it is not clear what the time is, raises the problem of motivation to learn. There was a point.

In order to solve such a conventional problem,
The applicant previously displays the time indicated by the respective hands in numerical hours and minutes at predetermined positions of the watch main body 1 as shown in FIGS. 10 to 12 in conjunction with the movement of the hour hand and the minute hand. We have applied for a learning watch in which a display unit is provided on the hour gear and the operation dial, respectively, and the numbers appear in an opening provided in the watch body.

That is, in FIG. 10 to FIG.
Reference numeral 9 denotes a minute number from “0” to “55” provided on the back surface of the operation dial 11 and is displayed at equal intervals on a coaxial circumference near the outer periphery of the operation dial 11. As shown in FIG. 11, on the back surface of the hour gear 16, hour numerals 20 from "1" to "12" are displayed at equal intervals on a coaxial circumference near the outer periphery thereof.

Then, on the partition wall 4 of the timepiece body 1,
As shown in FIG. 12, one minute numeral 19 is placed at a position corresponding to the minute number 19 displayed on the back surface of the operation dial 11.
A minute display window 21 is opened so that only one hour numeral 20 can be visually recognized at a position corresponding to the hour numeral 20 displayed on the back surface of the hour gear 16.
2 is open.

Reference numeral 23 denotes a sheet formed of cardboard or a resin plate to have the same shape as the inner shape of the cylindrical outer portion 2. The sheet 23 has a minute display window 2 for the minute numeral 19.
When the portion corresponding to the hour display window 22 for 1 and the hour numeral 20 is open, the arrow-shaped markers 24 and 25 toward the minute and hour display windows 21 and 22, respectively, , 25, the characters "Non no Mado" and "Nan no Mado" are displayed, respectively.

When the operation dial 11 is rotated by one turn, the minute hand 8 is rotated once (36 times) as in a general-purpose timepiece.
After 60 minutes, the hour hand 9 rotates by 30 degrees and advances by one hour. When the minute hand 8 and the hour hand 9 are set at desired times, a minute display window 21 provided on the back side of the timepiece body 1 displays the timepiece 7 indicated by the minute hand 8.
The minute number 19 corresponding to the minute is displayed, and the hour display window 2
The numeral 2 indicates an hour numeral 20 corresponding to the time of the clock dial 7 pointed by the hour hand 9.

With such a configuration, the time pointed by the minute hand 8 and the hour hand 9 can be recognized even when the learning instructor operates the operation dial 11 from the back side of the watch main body 1, and the time is displayed by a number. Therefore, there is an effect that the children can easily understand each other, and it is also possible for the children to learn each other or independently.

[0014]

However, when the operation dial 11 is rotated, the minute number 19 displayed on the back side is continuously displayed on the minute display window 21, so that the minute hand 8 is now pointing. Minutes are easy to read. However, between the hour number indicating the first hour and the hour number indicating the next hour, the hour number 20 is not displayed in the hour display window 22, or the first hour number or a part of the next hour number. Is displayed in the hour display window 22, and there remains a problem that it is difficult to read.

That is, the hour gear 16 also rotates slowly with the rotation of the operation dial 11, and the operation gear 11 makes one rotation (360 degrees), so that the hour gear 16 becomes 1/1.
It makes two rotations (30 degrees).
From the time when the minute number displayed on 1 starts displaying 50 to 55, the hour number displayed on the back of the hour gear 16 gradually starts to disappear from the hour display window 22 and the minute number displayed on the minute display window 21 Is displayed in the hour display window 22 for the first time when a number from 55 to 0 is displayed, which makes it difficult to read.

[0016]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and the present hour number is maintained until the minute number displayed in the minute display window becomes zero. It is intended to provide an easy-to-read thing by displaying the next hour numeral in the hour display window only when the minute number continues to be displayed in the hour display window and the minute number has passed through 55 and has been displayed as 0. The gist thereof is that the hour hand and the minute hand are rotated by the operation dial, and the hour and minute indicated by the hour hand and the minute hand are displayed in numbers on a display window provided in the watch body, respectively.爪 With a rotating claw,
Displaying the number indicating the time on one surface, providing a plurality of branch teeth consisting of a pair of teeth radially on the outer periphery, and displaying these intermittent gears when intermittently rotating by 30 degrees by meshing with the claws, A first invention relating to a learning timepiece, comprising: a positioning member that presses the branch teeth and positions the intermittently-rotated hour display intermittent gear. In the first invention, the positioning member is A second invention, in which the claw meshes between the pair of tooth portions of the other branch teeth when the time display intermittent gear is positioned by pressing two adjacent branch teeth together; In the second invention, in the third invention relating to the learning timepiece in which the number representing the minute is displayed on one surface of the minute display disk which rotates together with the minute hand, and in the first or second invention, the minute is represented. Said Letter a, in the fourth invention relates to learning clock displayed on one surface of the operation dial.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings. In the drawings, the same functional components as those shown in FIGS. 7 to 12 are denoted by the same reference numerals, and the description thereof will not be repeated, and only different points will be mainly described in detail below.

1 to 6, reference numeral 11 denotes an operation dial part of which protrudes from the peripheral surface of the cylindrical outer shell 2, and a pinion 12 fixed to the center thereof is an intermediate gear 13
The intermediate gear 13 is engaged with the minute gear 14 and the pinion 15 fixed to the center of the intermediate gear 13 is
6, respectively.

Reference numeral 26 denotes a short cylindrical portion fixed to the back surface of the minute gear 14 and having the same diameter as the minute gear 14. One claw 27 protrudes from a part of the peripheral surface of the short cylindrical portion 26 in the diameter direction. , The short cylindrical portion 26 and the large-diameter short cylindrical portion 2 fixed to the back surface thereof.
As shown in FIG. 3, minute display discs 28 having minute numbers 19 of "0" to "55" displayed at equal intervals on the back surface are fixed through the 6A. And the claw 2
Reference numeral 7 meshes with a branch tooth 30 of the time display intermittent gear 29 described later.

Reference numeral 29 denotes an intermittent gear which is rotatably arranged and has twelve branched teeth 30 on its outer periphery.
Are radially projected at equal intervals. A pair of teeth 30a, 30b constituting each branch tooth 30
The intermittent gear 29 is interlocked with the claw 27 in between, and the time display intermittent gear 29 rotates intermittently (1/12 rotation) by the rotational movement (one rotation) of the claw 27. At this time, on the back surface of the display intermittent gear 29, as shown in FIG. 4, hour numbers 20 from "1" to "12" are displayed at equal intervals.

Reference numeral 31 denotes an inverted T-shaped positioning member installed around the hour display intermittent gear 29.
Of the branch teeth 30a, 3
A band-shaped portion 32 made of resin and provided with an elastic force, and a protruding portion 33 protruding from the center of the rear surface of the band-shaped portion 32 are provided so as to always mesh with the claw 27 between 0b. It is mainly composed of

Numeral 34 denotes a flat portion formed at the center of the surface of the strip-shaped portion 32, and has a length that allows the tips of two adjacent branch teeth 30A and 30B of the intermittent hourly gear 29 to come into contact at the same time. The projecting portion 33 is provided with an elongated hole 35 for guiding and fixing, and the strip-shaped portion 32 is provided with elongated holes 36 for guiding at both ends thereof.

Pins 37, 38 which stand upright from the partition wall 4 are inserted into the slots 35, 36, respectively, and the pins 3 which stand upright in the guide / fixing slot 35, respectively.
7, the positioning member 3
1 is mounted at a position close to the hour display intermittent gear 29. In this case, the flat portion 34 has a light elastic force and the two branch teeth 30 adjacent to the time display intermittent gear 29.
Since the tips of A and 30B are pressed, the hour display intermittent gear 29 always stops at a predetermined position and does not rotate carelessly.

Reference numeral 21 denotes a minute display window formed in the partition wall 4 of the timepiece main body 1, which is formed at a position corresponding to the minute numeral 19 displayed on the back surface of the minute display disk 28. The opening allows only the numeral 19 to be viewed. At the position corresponding to the hour numeral 20 displayed on the back of the hour display intermittent gear 29, an hour hour display window 22 through which one hour numeral 20 can be visually recognized is opened. For other points, see FIG.
12 to FIG. 12, and a detailed description thereof will be omitted.

When the operation dial 11 is rotated right or left, the intermediate gear 13 meshing with the pinion 12 of the operation dial 11 is rotated left or right. Then, the rotation of the intermediate gear 13 causes the rotation of the intermediate gear 13.
And the pinion 15 of the intermediate gear 13
When the gear 16 and the gear 16 rotate right or left, respectively,
The minute hand 8 and the hour hand 9 rotate right or left in a predetermined relationship.

When the minute gear 14 makes one rotation as described above,
Claw 27 protruding from short cylindrical portion 26 of minute gear 14
Also makes one rotation and engages with the claw 27 in the state shown by the solid line in FIG.
a or 30b) is extruded. As a result, the time display intermittent gear 29 rotates by one tooth, and
Stop in the state shown by the solid line. Thereafter, the same operation as described above causes the hour display intermittent gear 29 to rotate by 30 degrees (for one hour) every time the minute gear 14 makes exactly one rotation (elapse of 60 minutes).

Here, in this embodiment, the time display intermittent gear 2
Nine adjacent two branch teeth 30A and 30B are simultaneously elastically brought into contact with the flat portion 34 of the positioning member 31, and the display intermittent gear 29 is positioned at this time. In the process of rotating the time display intermittent gear 29 rightward by one tooth, as shown by the dashed line in FIG.
Pushes the flat portion 34 of the positioning member 31 upward and passes rightward through the flat portion 34 without stopping.

Then, the flat portion 34 of the positioning member 31
Is restored to the state shown by the solid line in FIG.
Nine adjacent two branch teeth 30 </ b> A and 30 </ b> B elastically contact the flat portion 34 of the positioning member 31. Thereby, the time display intermittent gear 29 is always positioned in the state shown by the solid line in FIG. 6, and at this time, the time display intermittent gear 29 is always in the same state as before the operation of the operation dial 11, that is, the claw 27 is It can be stopped in a state of being engaged between the portions 30a and 30b.

If the time indicating intermittent gear 29 is stationary in the state shown by the one-dot chain line in FIG.
4 is deviated from the rotation locus of the claw 27, and the predetermined relationship that the claw 27 meshes between the tooth portions 30a and 30b of one branch tooth 30 is broken.

By the above operation, the predetermined hour numeral 20 displayed on the back of the hour display intermittent gear 29 continues to be displayed in the hour display window 22 until 60 minutes have elapsed since the minute gear 14 has just made one rotation. As soon as 60 minutes have passed after the gear 14 has just made one revolution, the next hour numeral 20 is displayed in the hour display window 22 in the hour display window 22. At this time, the minute display disk 28 coaxially fixed to the back surface of the minute gear 14 also rotates together with the minute gear 14, and the minute number 19 displayed on the back surface of the minute gear 14 becomes the minute display disk 28. Are continuously displayed on the minute display window 21 with the rotation of.

In the above embodiment, when the minute indicating disk 28 is coaxially mounted via the short cylindrical portion 26 and the large-diameter short cylindrical portion 26A fixed to the back surface of the minute gear 14, the minute indicating In the above description, the minute numbers 19 of "0" to "55" are displayed at equal intervals on the back surface of the disk 28, but the minute display disk 28 is not provided, and in FIGS. As shown in the drawing, the operation dial 11 may be provided with minute numerals 19 ranging from “0” to “55”. The operation of each member in this case is as described above.

[0032]

Since the learning timepiece according to the present invention has the above-described configuration, the hour hand does not move until 60 minutes have elapsed after the minute hand has made one revolution, and at the same time the minute hand has made one revolution, the next time. Since the hour numeral is displayed in the hour display window, the time, particularly the hour, can be easily grasped.

[Brief description of the drawings]

FIG. 1 is a front view of a learning timepiece according to the present invention with a transparent cover and a timepiece dial removed.

FIG. 2 is an exploded perspective view showing an internal mechanism of the timepiece.

FIG. 3 is a back view of the minute display disk of the timepiece.

FIG. 4 is a back view of an hour display gear of the timepiece.

FIG. 5 is a rear view of the watch.

FIG. 6 is a front view illustrating the operation of the timepiece.

FIG. 7 is an exploded perspective view of a conventional learning watch.

FIG. 8 is a rear view of the timepiece.

FIG. 9 is an exploded perspective view of an internal mechanism of the timepiece.

FIG. 10 is a rear view of the operation dial displaying minute numbers of the timepiece.

FIG. 11 is a rear view of the hour gear displaying hour numerals of the timepiece.

FIG. 12 is a rear view of a different timepiece.

[Description of Signs] 7 Clock face 8 minute hand 9 hour hand 11 Operation dial 14 minute gear 16 hour gear 19 minute number 20 hour number 21 minute display window 22 hour display window 26 short column 27 claw 28 minute display disk 29 hour display Intermittent gear 30 Branch teeth 31 Positioning member 32 Strip shape 33 Projection

[Procedure amendment 2]

[Document name to be amended] Drawing

[Correction target item name] Fig. 1

[Correction method] Change

[Correction contents]

FIG.

[Procedure amendment 3]

[Document name to be amended] Drawing

[Correction target item name] Fig. 5

[Correction method] Change

[Correction contents]

FIG. 5

[Procedure amendment 4]

[Document name to be amended] Drawing

[Correction target item name] Fig. 6

[Correction method] Change

[Correction contents]

FIG. 6

[Procedure amendment 5]

[Document name to be amended] Drawing

[Correction target item name] Fig. 7

[Correction method] Change

[Correction contents]

FIG. 7

Claims (2)

[Claims] 1. A minute hand and an hour hand respectively attached to a shaft having a double inner and outer structure penetrating the center of a timepiece dial, are rotated in a predetermined relationship via a minute gear and an hour gear by rotating an operation dial. In this case, the minute display disk is coaxially fixed to the back surface of the minute gear via a short cylindrical portion, and engages with one claw projecting diametrically from the short cylindrical portion.
The minute and hour numerals indicated by the hands among the minute and hour numerals respectively displayed on the hour display intermittent gear that rotates intermittently by 0 degrees are formed so as to appear in the display window of the watch body, respectively, and the hour display intermittent gear A learning timepiece provided with a positioning member for elastically pressing the branch teeth from outside thereof. 2. A minute hand and an hour hand which are respectively attached to shafts having a double inner and outer structure penetrating the center of the timepiece dial, are rotated in a predetermined relationship via a minute gear and an hour gear by rotating the operation dial. When it is formed in such a manner, the minute number displayed on the back side of the operation dial and the one claw protruding in the diametric direction from the short cylindrical portion fixed to the back side of the minute gear are intermittently rotated by 30 degrees. The hour and minute numbers indicated by the hands among the numbers displayed on the hour display intermittent gear are formed so as to appear in the display window of the watch main body, and the branch teeth of the hour display intermittent gear are elasticated from the outside. A timepiece for learning, comprising a positioning member for pressing the target.