JPS6213674Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a stopwatch toy, and more specifically to a stopwatch toy that has a function similar to a stopwatch used for time measurement and is configured so that it can also be used as a pendant. .

Hereinafter, the present invention will be explained in detail based on embodiments shown in the drawings.

In FIG. 1, the object generally designated by the reference numeral 1 is a stopwatch toy according to the present invention. This stopwatch toy includes a lower case 2 divided into upper and lower halves, an upper case 3, and a transparent cover 4 covering the upper case 3. On the upper circumferential side of the upper case 3, a dial 5 on which numbers and the like are displayed is arranged at a slight distance from the top surface of the upper case 3, and above the dial 5 there is a second hand. A rotary plate 6 having a shape imitating a TV manga character or the like is attached. The character finger displayed on the rotary plate 6 serves as the second hand 7.

Further, a string 8 for winding the mainspring is pulled out from the lower part of the stopwatch toy 1, and a knob 9 for pulling out the string is fixed to the end of the string 8. A hanging string 10 is attached to the upper end of the stopwatch toy 1, and a stop button 11 is provided on one side of the string 10, and a reset button 12 is provided on the other side. Furthermore, a rotary plate 6 is provided in the cutout hole 3a on the side surface.
Rotation speed display board 13 that moves one scale when rotates once.
A part of it is placed so that it can be seen from the outside.

Next, details of the drive mechanism of the stopwatch toy 1 having the above-mentioned appearance will be explained based on FIG. 2 and subsequent figures.

As shown in FIG. 3, a cylindrical protrusion 14 is provided at the center of the lower case 2.
A cutout portion 14a is formed in a portion thereof. A mainspring 15 is housed within this protrusion 14, and the outer end of the mainspring 15 is bent outward and hooked onto the notch 14a. on the other hand,
A drum 17 is fixed to a rotating shaft 16 that is rotatably supported in a bearing hole 2a in the center of the lower case 2, and the inner end of the mainspring is locked to the lower side of the drum 17. The mainspring 15 is wound up by pulling the mainspring winding string 8 which is wound around the mainspring 17.

Further, a large-diameter gear 18 is fixed to the rotating shaft 16, and a pinion gear 19 is coaxially fixed above the gear 18. This pinion gear 19 meshes with a gear 21 formed on the circumferential surface of a rotation speed display panel 13 rotatably supported on the lower case 2 side via a shaft 20. This gear 21 has 72 teeth, and the pinion gear 19 has 12 teeth.
It is. And on the surface of the rotation speed display board 13, 0~
Since the numbers 5 are displayed at equal angular intervals, when the pinion gear 19 rotates once, the rotation speed display panel 13 rotates 1/6, and the displayed numbers advance by one step. The numbers displayed on the rotational speed display panel 13 are adjusted so that when the string is fully pulled out and the mainspring 15 is reeled in, the number 0 appears at the notch hole 3a.

On the side of the gear 18, an arc-shaped elongated hole 22 is formed on the lower case 2 side, with the bearing hole 2a as the center, and a rotary shaft 23 is movably fitted into the elongated hole 22. There is. This rotating shaft 23 has a gear 2.
4 is fixed and is moved as the rotating shaft 23 moves, but the meshing state of the gear 24 and the gear 18 is always maintained.

A pinion gear 26 fixed to the rotating shaft 25 is arranged on the side of the gear 24.
As the pinion gear 26 and the gear 24 move, the pinion gear 26 and the gear 24 are appropriately engaged.

A gear 27 is fixed at the same time as the pinion gear 26, and this gear 27 is meshed with a pinion gear 29 fixed to the rotating shaft 28.
A gear 30 fixed coaxially with the rotating shaft 34 is meshed with a pinion gear 32 fixed on the rotating shaft 31, and a gear 33 fixed coaxially with the pinion gear 32 is meshed with a pinion gear 35 fixed on the rotating shaft 34. A ratchet wheel 36 is fixed coaxially with the pinion gear 35, and a rotary arm 37 is rotatably attached to the ratchet wheel 36 via a shaft 38. The tip of the rotating arm 37 is bifurcated into claws 37a and 37b, which are engaged with the ratchet wheel 36. The other end of the rotating arm 37 extends outward and is formed with a protrusion 37c that also serves as a weight.

The gear groups 29, 30, 32, 33, and 35, the ratchet wheel 36, and the rotating arm 37 constitute a speed regulating mechanism.

Two guides 39, 39 are formed inwardly in the vicinity of the rotating arm 37 of the lower case 2, and the stop button 11 is slidable between these two guides 39, 39. is mated to. This stop button 11 has a protrusion 11a at its inner end, and this protrusion 11a is in a position where it can engage with the protrusion 37c of the pivot arm 37.
The stop button 11 is always given a force to move in the protruding direction by one end of a torsion coil spring 41 wound around a shaft 40 protruding from the lower case 2 side.

Therefore, if the stop button 11 is pushed inward against the elastic force of the torsion coil spring 41, the protrusion 11
a comes into contact with the free end of the rotating arm 37 and prevents the rotating arm 37 from rotating. As a result, the claw 37a
is maintained in mesh with the ratchet wheel 36, and the gear groups 29, 30, 3 constituting the speed regulating mechanism
2, 33, and 35 are stopped. As a result, the gear group that meshes with them is also stopped, and the mainspring 1
5 is prevented from releasing, and the stopwatch toy's function is stopped. Next, when the pressing force on the stop button 11 is released, the engagement between the projection 11a and the rotating arm 37 is released, and the drive mechanism starts operating again.

Adjacent to these guides 39, 39, another set of guides 42, 42 is protruded, and guided by these guides 42, 42, the reset button 1 is
2 is slidably attached. This reset button 12 is also constantly given a moving force in the projecting direction by the other end of the torsion coil spring 41. This reset button 12 is installed in a state where it is guided by guides 43, 43 formed on the upper surface of the upper case 2, and is located in a position where it can engage with a slider 44, so that when the reset button 12 is pressed, it slides. The tip end 44a of the child 44 hits the circumferential surface of a heart-shaped cam 45 that is integrally supported on the back side of the rotary plate 6 and is rotatably supported on the rotary shaft 16 by friction fitting, so that it The rotary plate 6 is rotated idly, and the finger forming the second hand 7 portion of the rotary plate 6 is aligned with the start position.

A ratchet wheel 46 is fixed to the shaft 25 coaxially with the gear 27. As shown in FIG. The ratchet wheel 47 is integrally fixed to the back surface of the rotary plate 6, which is rotatably loosely fitted to the rotary plate 16, via a heart-shaped cam 45. The tooth ratio of ratchet wheels 46 and 47 is 6:12. Therefore, the ratchet wheel 47 is rotated intermittently by 30 degrees.

49 is a leaf spring whose free end 49a is bent into a dogleg shape, and whose base end 49b is fixed to the upper surface of the upper case 3. The free end 49a of this leaf spring 49 is constantly engaged with the ratchet wheel 47, and the finger forming the second hand 7 of the rotary plate 6 is connected to the dial 5.
It is constructed so that it stops exactly at the numbers representing the time in sequence.

Next, the operation of the stopwatch toy constructed as above will be explained.

First, by pinching the knob 9 and pulling the string 8 downward, the drum 17 is rotated clockwise in FIG. 3, and the mainspring 15 is wound up. At this time, the rotation shaft 23 of the gear 24 receives a force that moves it in the direction of the rotation speed display panel 13 and is moved in the same direction, so the meshing between the idle gear 24 and the gear 27 is released, and the rotation is stopped. It is not transmitted to the gear group below gear 29 that constitutes the speed regulating mechanism. With the string fully pulled out, the number on the rotation speed display panel 13 is set to 0.

Therefore, if you release the force applied to string 8,
Mainspring 15 begins to unwind, and gear 1
8 starts rotating counterclockwise, the gear 24 meshing with this rotates the rotating shaft 23 toward the rotation speed display panel 1.
3 and move in the same direction, meshing between the gears 24 and 26 begins,
The unraveling force is also transmitted to the speed regulating mechanism side, and at the same time to the rotary plate 6 via the ratchet wheels 46 and 47, and the second hand 7 formed as a character finger displayed on the surface side is It starts rotating at a constant speed while pointing at the number on board 5. and,
When the rotating plate 6, which normally rotates together with the rotating shaft 16 due to frictional contact, rotates once, the rotational speed display panel 13
rotates 1/6 of a turn, and the carry is carried as if it took one step in 12 seconds.

Similar operations continue until the mainspring 15 is completely unwound, but if you wish to stop the operation midway, press the stop button 11, and as previously described, the protrusion 11a will press one end of the rotating arm 37, causing the pawl 37a to mesh with the ratchet wheel 36, temporarily stopping the rotation of the turntable 6. When the stop button 11 is released, the original state is restored and the operation can be resumed.

In this way, the operation continues as if it were a stopwatch, and when the unwinding force of the mainspring disappears, the rotation of the rotary disk 6 also stops. If you want to set the second hand 7 to the start position during operation or when the watch is stopped, press the reset button 12 and the slider 44 will move forward and press the cam surface of the heart-shaped cam 45a, causing the heart-shaped cam 45a to rotate. , the second hand 7 portion of the rotary disk 6 is returned to the starting position pointing to the number 12.

As explained above, according to the present invention, it is possible to start the stopwatch operation simply by pulling the string for winding the mainspring, and it is possible to stop and reset at a desired time. It is an extremely interesting stopwatch toy that can do all kinds of things.

[Brief explanation of the drawing]

The drawings are for explaining one embodiment of the present invention; FIG. 1 is an overall perspective view, FIG. 2 is a perspective view with upper and lower cases separated, and FIG. 3 is an exploded perspective view. 1... Stopwatch toy, 2... Lower case, 3... Upper case, 5... Dial, 6... Rotating plate, 7... Second hand, 8... String, 9... Knob,
11... Stop button, 12... Reset button, 13... Rotation speed display panel.

Claims (1)

[Scope of utility model registration request] Flat circular casing with dial 5 on the top circumference
a mainspring 15 housed in the case, a mainspring 1 that is rotatably installed in the case with a string 8 for winding the mainspring, and one end of the mainspring 1 is fixed to the case.
a drum 17 that locks the other end of the mainspring 15; a rotational speed display board 13 that is rotated via a gear as the mainspring 15 unwinds, and a part of which is disposed so as to be visible from the outside of the case; The mainspring 1 is arranged concentrically with the dial 5 and is visible from outside the case.
5 is rotated at a rotational speed that is an integral multiple of the rotational speed of the rotational speed display plate 13, and the rotating plate 6 having a second hand 7 displayed on its surface is fitted by friction welding. The rotating shaft 16 and the mainspring 15
a speed regulating mechanism that keeps the unraveling force constant; a stop button 11 that presses a claw that can be freely engaged with and disengaged from the ratchet wheel of the adjustment mechanism; It is equipped with a heart-shaped cam 45 and a reset button 12 that engages with the heart-shaped cam 45 to return the rotary plate 6 to the starting position, and it is possible to draw out the string 8 for winding the mainspring out of the case. Features a stopwatch toy.