JPH0134145Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention is a method for setting the alarm ON/OFF of an alarm clock.Each time the set button exposed on the outside of the clock is pushed, ON/OFF turns, and when ON, the set button is turned ON. It concerns an alarm clock in which the set button is in a bistable position of low, high and off. The set button interlocks the set lever built into the movement, setting it to one of two stable positions. The set lever has a return spring that opposes the push, giving elasticity in the direction of constantly pushing the set lever.

Conventionally, this return spring is a coil spring, and a method has been used in which this coil spring is applied between the set lever and a stationary member such as a bridge to impart elasticity to the set lever. This method not only requires a dedicated coil spring, but also is difficult to assemble.

The present invention uses the elasticity of a metal member that extracts power from a cylindrical battery and applies it to a return spring, and also extends it further to press the end of the set lever integral arm to ensure push-turn operation. Furthermore, the structure is simple and easy to assemble.

The present invention will be explained using drawings.

FIG. 1 is a sectional view showing the structure of an alarm set according to the present invention. Reference numeral 1 is a guide setting wheel to which a guide needle (not shown) is connected, and the alarm time is set by the user's external operation. Reference numeral 2 denotes an alarm detection wheel, which is connected to a clock (not shown) and constantly rotates. 3 is a set hole, and 4 is a detection convex. When the detection convex 4 reaches the set hole 3, the alarm detection wheel 2 is depressed. 5 is a conduction shaft. Reference numeral 6 denotes a contact spring, and in the above-mentioned falling action, 5 and 6 come into contact to establish electrical continuity. 7 is a buzzer device. 8 is a hook, and in FIG. 1, the alarm is in the ON state. 9 is the rotation axis of the hook 8. The terminal 10 of the hook is connected to the end 11 of the contact spring.
In a state where the contact spring 6 is not involved, the contact spring 6 can freely move up and down, and the alarm ON state is maintained. From this state, when the hook 8 is rotated in the direction of arrow 12, the terminal 10 moves in the direction of arrow 13 and engages with the end 11 of the contact spring to stop the vertical movement of the contact spring 6. In this state, even if the alarm detection vehicle 2 falls, the contact spring 6 does not come into contact with the conduction shaft 5, and the OFF state is maintained without generating an alarm. Numeral 14 is a pin that is integrated with the hook 8 and engages with the set lever 15. Reference numeral 16 is a corner of the set lever 15 for operating the pin 14 from both directions. alarm
If the set lever 15 is slid in the direction of arrow 17 from the ON state, the hook 8 will rotate in the direction of arrow 12 and the terminal 10 will move in the direction of arrow 13 to the alarm OFF position. A return spring 18 and a heart cam 19 are required for ON/OFF to be a bistable push turn. 20 is an arrow for operating the heart cam 19 and is fixed to a receiver or the like. Reference numeral 21 indicates four serrated rectifying ridges built into the heart cam, and each time the push button is operated in the direction of arrow 17, arrow 20
The heart cam 19 is positioned so that the circumference of the heart cam 19 is reversed in a predetermined direction. 17 against the push-out elasticity 22 by the return spring 18.
If there is a push operation in the direction, the heart cam 19 reverses and moves forward, and the arrow 20 engages the central protrusion 23 like 20', and with the help of the elastic force 22, it maintains a temporary stop. At this location, the alarm is OFF and the return spring is at the 18' position, ie, the set lever 15 is stabilized at the forward position. When pressed again from this state, the heart cam 19 reverses and retreats, returns to its original position with the help of the elastic force 22, and maintains that state. The alarm is on in this place.

Even with a structure in which the heart cam 19 and the arrow 20 are replaced, the same function can be obtained.

From the above explanation, the bistable push-turn type alarm set requires at least the return spring 18 and the set lever 15, and is not limited to the rotational setting of the hook 8.

FIG. 2 is a perspective view of a movement according to an embodiment of the present invention. 24 is a main plate, 25 is a receiving plate which is a stationary member, and 24 and 25 support parts such as a wheel train. The movement is approximately rectangular and has a rectangular battery holding chamber 26 on the inside of one side. A cylindrical battery is housed in the battery holding chamber 26. 15 is a set lever, 19 is a heart cam, 23 is a central convex, 21 is four serrated rectifying ridges, and 20 is an arrow fixed to the receiving plate 25. Each time a push is made in the 17 directions, the arrow 20 moves in the direction of the arrow 27 with respect to the heart cam 19, so the set lever 15
Select ON and OFF positions. Reference numeral 30 is an arm that connects the set lever 15 and the heart cam 19 together, and is made long and thin so that the heart cam 19 can easily swing from side to side. The set lever 15 is supported so as to be slidable back and forth in the direction of arrow 17 along the receiving plate 25. Reference numeral 32 denotes a metal member that is held and fixed to one end face of the battery holding chamber and is used to take out electric power. One end 34 of the metal member 32 is connected to the circuit board 3
Connect to the specified pad of 1 and supply power. 33
is the corresponding power extraction member. Metal member 3
The other end of the movement part 2 extends outward along one side 51 forming the movement via the relay part 36. The extending portion constitutes a return spring portion 18'' which is applied to the set lever 15 and applies pushing elasticity to the set lever in the direction opposite to the arrow 17. 37 is an operation plate on which a set button is applied. 40 is a folded portion and is a return spring portion. An example of making it easier to hang the portion 18'' is shown. 52 is a spring that is reinforced when the return spring force is desired to be further strengthened.

The metal member 32 extends to form the return spring 18'' and has an extension portion 41 extending further into the movement from at or near the return spring portion 18'' along the plane of the movement. The end portion 42 of the extension portion 41 rests on or near the upper surface of the heart cam 19 provided at the end of the arm 30, and presses the heart cam 9 toward the receiving plate 25. Due to this pressure, the heart cam 19 is always lightly pressed against the arrow 20, and the heart cam 19 and the arrow 20
Ensure a vertical meshing relationship with the arrow 17
Even when a push operation is performed in the direction, the end portion 42 and the heart cam 19 move together without being separated in the sliding direction of the push, so there is little friction between them, a smooth push turn operation is possible, and durability is achieved.

As explained in Figure 1, heart cam 19 and arrow 2
0 means that even if the structure is replaced, it has the same function and effect. Further, the metal member integrally provided with the return spring portion 18'', the extension portion 41, and the end portion 42 may be a positive or negative power extraction member.

FIG. 3 is a partial plan view for explaining the operation of the push turn. I will explain it with a type where the heart cam is stationary and the arrow moves. 19 is a heart cam bored in the receiving plate, etc., and 23 is a central convex portion of the heart cam. Reference numeral 20 is an arrow on the set lever arm that moves in contact with the heart cam 19. 22 is an arrow in the direction of pushing elasticity, and 17 is an arrow in the pushing direction.
The four sawtooth rectifying ridges are 21-1, 21-2, 2
Shown as 1-3 and 21-4. The sawtooth rectifying ridge is arrow 2
0 is allowed to rotate in the 53-1 and 53-2 directions, but the reverse rotation is inhibited. 22-1', 22-2' show the cross-sectional shapes of sawtooth rectifying ridges, and 21-3, 21-
4 is also of the same type. Arrow 20 is above the heart cam and is in the alarm ON position. From here, if you push in the direction of arrow 17, you will reach ridge 21-1.
It rotates along the direction 53-1, passes through the ridge 21-2, and reaches the heart cam 19-1. If you let go of your hand here, the elasticity of arrow 22 will lead you up the ridge 21-
2, passed through the ridge 21-3, and reached the central convex 23
is locked. The arrow is held at position 20' and the alarm is set to OFF.

When the push of the arrow 17 is made again from the position 20', it is blocked by the ridge 21-3, passes through the ridge 21-4, and reaches the heart cam 19-2. When you let go of your hand, it will rise due to the elasticity 22, pass the ridge 21-1 along the arrow 53-2, return to the original position of the arrow 20, and set the alarm ON.

When the end surface of the arrow 20 is wide, the same function can be obtained by using a partially stepped shape instead of the serrated rectifying ridge. The description has been made using a type in which the heart cam is stopped and the arrow is moved, but in order to stop the arrow and move the heart cam, the same operation can be performed if arrow 22 is set in the push direction and arrow 17 is set in the push direction.

As described above, the arm 30 that integrally connects the set lever and the heart cam or arrow is long and thin so that it can easily swing from side to side.

Therefore, it is difficult to ensure vertical engagement unless the end portion 42 of the extension portion 41 is pressed. Particularly when the set lever is integrally molded from resin, there is a tendency for the set lever to become disengaged and cause operational problems.

The metal member for power extraction of the present invention has a simple structure in which the power supply end 34, the return spring part 18'', and the pressing end 42 are integrated, and the end 42
presses the top surface of the end of the arm 30 to ensure push-turn operation.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing the structure of an alarm set according to the present invention, and FIG. 2 is a perspective view of a movement showing an embodiment of the invention. FIG. 3 is a partial plan view for explaining the operation of the push turn. 15... Set lever, 19... Heart cam,
18''...Return spring portion, 20...Arrow, 26...Battery holding chamber, 25...Stationary member such as receiving plate, 30...Arm, 41...Extension portion, 42...End portion, 51...
One side of the movement.

Claims (1)

[Scope of utility model registration request] In an alarm clock with a bistable push-turn alarm set that uses a set lever and a return spring so as to be activated by the engagement of an arrow and a heart cam, there is a stationary member such as a receiving plate having an arrow or heart cam, and a heart cam or arrow that comes into contact with the stationary member. The set lever is constructed by integrally connecting a heart cam or an arrow with a long thin arm, and the movement of the alarm clock is approximately square, with a rectangular battery holding chamber inside one side. A metal member for power extraction is held on the end face of the metal member, one end of the metal member is connected to a circuit board, and the other side of the metal member is connected to the circuit board along one side forming the movement. It constitutes a return spring portion that extends outward and is applied to the set lever and applies pushing elasticity to the set lever, and its end that extends further inside the movement plane from the return spring portion or its vicinity is connected to the heart cam or the end portion of the arm end. A push-turn alarm clock characterized in that the heart cam or the arrow is applied near the top of the arrow and is pressed against a stationary member such as the receiving plate.