JPH0233193Y2 - - Google Patents

Description

[Detailed description of the invention] The invention of the present application aims to solve the following problems.

(Industrial Application Field) This invention has a rotatable knob attached to a part of the main body, and by rotating the knob, it is possible to set a time limit, and when the set time limit has passed. It relates to a timer in which a driven piece provided in the main body is sometimes activated.

(Prior Art) In this type of timer, the main body is equipped with a clock mechanism such as a mainspring or a speed regulating mechanism, and the moving parts inside the main body are driven after a set time has elapsed. There was a drawback to increasing the size. In order to solve this problem, we have devised a device in which the knob is formed into a concave shape, and the clock mechanism attached to the main body is placed in the concave part, but such a device has a structure that makes it difficult to connect the main body and the knob. There were problems in that the joining structure was difficult and it was difficult to design a configuration that would facilitate testing of the operation of the clock mechanism and the overall function of the timer.

(Problems to be solved by the invention) This invention eliminates the above-mentioned conventional problems by making the main body of the knob hollow and housing the clock mechanism inside it, which improves the overall shape of the timer. An object of the present invention is to provide a timer which can be miniaturized, whose main part can be easily joined to a main body, and which can also be extremely easily tested for the operation of a clock mechanism and for the overall test of the timer. It is.

The configuration of the present invention is as follows.

(Means for solving the problem) The present invention provides a timer in which a knob 2 is rotatably provided at one end of a main body 1.
The main body part 17 of the main body 17 is formed hollow, and inside thereof is provided with a clock mechanism consisting of a mainspring 28 for urging the main shaft 30 and a speed regulating mechanism 26 for controlling the rotation of the main shaft 30, Furthermore, a tip of a rotatable main shaft 30 connected to the main spring 28 and the speed regulating mechanism 26 is provided protruding from the center of the surface of the main body 17 facing the main body 1, and the main shaft 30 is connected to the main spring 28 and the speed regulating mechanism 26 at the center thereof. 30 to bearing part insertion gap 36
An actuating piece 33 for driving the driven piece 13 is provided at a lateral position across from the main shaft 30, and a stopper 32 is inserted in the radial direction from the base of the main shaft 30 from the bearing insertion gap 36. On the other hand, on the surface of the main body 1 facing the knob 2, a driven piece 13 is connected to a transmission piece 15 for transmitting movement to the inside of the main body 1.
In addition, a bearing part 7 is provided with an insertion hole 8 that allows the tip of the main shaft 30 to be inserted and fixed, and the stopper 3 is provided on the front end surface of the bearing part 7.
The base part of the stopper 32 is fitted, and the tip part of the stopper 32 is provided with a fitting recess 9 having a size that allows it to protrude laterally. When the main shaft 30 is inserted and fixed, the driven portion of the driven piece 13 is located at a position that blocks the rotation locus of the actuating piece 33,
A means is provided in which the transmission piece 15 is actuated by the actuation piece 33 after a set time has elapsed, and its operation is as follows.

(Function) When the main body of the knob is turned in the setting direction to set the time, the main body rotates in the setting direction with respect to the main shaft fixed to the main body, and a biasing force is stored in the mainspring inside the main body. The main body rotates in the return direction relative to the main body by the energy stored in the mainspring, and its speed is controlled to a predetermined speed by the speed regulating mechanism. When the set time period elapses, the actuating piece attached to the main body drives the driven piece in the main body and operates the transmission piece of the main body connected thereto. Thereafter, the operating piece comes into contact with a stopper fixed to the main body, and the rotation of the main body is stopped.

(Example) Below, drawings showing examples of the present application will be described. The drawing shows a gas switch used in a gas rice cooker, etc., as an example of a timer. In the figure, the timer includes a main body 1 and a knob 2 rotatably attached to one end of the main body 1. In the main body 1, 3 is a main body case, and 4, 5, and 6 are push buttons, for example, push buttons for pilot burner, ignition, and release, respectively. Reference numeral 7 denotes a bearing portion provided on the surface of the main body case 3 facing the knob, and an insertion hole 8 is provided at the axial center position of the bearing portion. Further, a recess 9 is formed in the end face of the bearing portion 7. As shown in the figure, this recess 9 consists of a radially long recess 9a and a short recess 9b. Reference numeral 11 indicates a set screw for fixing the main shaft, and 12 indicates a through hole provided in a portion facing the set screw 11. Reference numeral 13 denotes a driven piece, which is swingable around a pivot 14, and is normally positioned at the position shown in FIG. 3 by a spring 13a. Reference numeral 15 denotes a transmission piece for operating the driven piece 13 and the push buttons 4 and 5 in conjunction with each other.

Next, in the knob 2, reference numeral 17 indicates a main body part, which is formed hollow by a base plate part 18 and a main body part 19 as shown. Note that 20 and 21 are a pair of engaging portions for positioning the base plate portion and the main body portion.
Further, a time scale for indicating a set time limit is provided around the location indicated by the reference numeral 22 on the main body portion 19. Further, 23 indicates unevenness for preventing slippage. 24 is a base frame portion fixed to the main plate portion 18, and this and the main plate portion 1
A well-known speed regulating mechanism 26 and a gear train 27 are disposed between the motor 8 and the motor 8. 25 is a barrel fixed to the base frame 24, and a well-known mainspring 28 is provided inside the barrel. Reference numeral 30 denotes a main shaft rotatably installed through the main plate portion 18 and the base frame portion 24, and is connected to the gear train 27 and the mainspring 28. 31 is a fastening part,
It is provided in a portion facing the set screw 11. 3
2 is a stopper extending in the radial direction from the base of the main shaft 30, one part 32a of which is long;
The other portion 32b is formed short. Reference numeral 33 denotes an actuating piece fixed to the main plate 18, and is provided at a position separated from the outer periphery of the main shaft 30 by a bearing insertion gap 36. Incidentally, the dimension of the bearing part insertion gap 36 is set equal to the thickness dimension of the bearing part 7. The actuating piece 33 consists of an actuating piece base portion 34 formed thickly and an actuating piece tip portion 35 formed thinly.

In the case of the above configuration, the push buttons 4 and 5 are pressed in advance, and then the knob 2 is rotated in the setting direction (clockwise in this example) to set the desired time period. The operation may be reversed. By turning the knob 2 as described above, the main body part 17 rotates with respect to the main shaft 30 fixed to the bearing part 7, and a biasing force is accumulated in the mainspring 28 provided inside the main body part 17. If you let go of the knob 2 in the above state, the energy stored in the mainspring 28 will cause the main body part 17 of the knob to return to its original position (counterclockwise in this example).
At the same time, the rotating speed is controlled to a slow and constant speed by the speed regulating mechanism 26 which is connected to the main shaft 30 via the gear train 27. After the main body portion 17 starts rotating in the return direction as described above, when the set time period elapses, the tip portion 35 of the actuating piece 33 comes into contact with the driven piece 13, and the driven piece 13 is moved as indicated by the arrow in FIG. Swing in the direction indicated by 35. Then, the movement of the driven piece 13 is transmitted to the mechanical section of the main body 1 via the transmission piece 15, and the mechanical section performs a predetermined operation, for example, an operation of returning the push buttons 4 and 5 to the protruding state. After the above-described operation is performed, the base portion 34 of the actuating piece 33 moves to the long portion 32 of the stopper 32.
The main body part 17 stops rotating in the return direction when the main body part 17 comes into contact with the tip part of the main body part 17.

Next, a method of testing during the timer manufacturing process or when inspecting a timer in use will be described. First, with the main body 1 and the knob 2 separated from each other, move the driven piece 13 of the main body 1 with your fingertips to check whether the mechanism inside the main body 1 performs the predetermined operation. . On the other hand, on the side of the knob 2, the mainspring 2 is rotated by rotating the main shaft 30 relative to the main body 17.
Checks are made as to whether a biasing force is accumulated at 8 or whether the main shaft 30 rotates at a predetermined speed in the return direction relative to the main body 17. Next, when performing a comprehensive check with the main body 1 and the knob 2 combined, insert the main shaft 30 into the insertion hole 8, and insert the part 3 of the stopper 32
a, 32b are parts 9a, 9b in the recess 9, respectively.
mated with. This ensures that the main shaft 30 is prevented from wobbling in the radial direction and in the rotational direction with respect to the bearing portion 7. In this state, the main body portion 17 of the knob 2 is rotated in the setting direction as in the case of use. Then, when you release your hand from the main body part 17, you can check whether the main body part 17 rotates at a predetermined speed in the return direction, and whether the tip 35 of the actuating piece 33 moves the driven piece 13 after a set time has elapsed. Do a check. If the result of the above check is good, insert the set screw 1 through the through hole 12.
1 to the fastening portion 31 and completely fixing the main shaft 30 to the bearing portion 7, the assembly of the timer is completed.

In addition, when inserting the main shaft 30 into the insertion hole 8 and further engaging the stopper 32 with the recess 9 as described above, each part 32a, 3 of the stopper 32 and the recess 9
2b, 9a, and 9b are formed in the dimensional relationship shown in the figure, so the knob 2 is
This will prevent you from installing it in the wrong orientation by 180 degrees.

(Effect of the invention) As described above, in the present invention, when it is desired to drive the driven piece 13 in a timed manner, by grasping the main body part 7 of the knob 2 by hand and turning it in the setting direction, the main body part 17 can be moved relative to the main shaft 30. can be rotated in the setting direction to set the desired time limit, and a biasing force is stored in the main spring 28 in the main body part.On the other hand, when the main part 17 of the knob 2 is released, the energy stored in the main spring 28 is used. Main shaft 30
On the other hand, the main body part 17 rotates in the return direction for a limited time, and its speed is controlled to a predetermined speed by the speed regulating mechanism, and when the set time period elapses,
There is an effect that the operating piece 33 attached to the main body part 17 can come into contact with the driven piece 13 in the main body 1 and drive it.

Moreover, the actuating piece 33 has the feature that it can come into contact with the stopper 32 on the side of the main body 1 and stop the rotation of the knob 2 after a time limit.

Moreover, even if the knob is designed to function as a timed drive and then actively stop as described above, the outer shape of the knob is such that the main body portion 17 is hollow and the mainspring 28, speed regulating mechanism 26, etc. Since the structure houses the clock mechanism, it also has the advantage of making the timer more compact.

Furthermore, even if the knob 2 is equipped with a clock mechanism inside the knob 2 as described above, the knob 2 may be attached to the main body 1.
When assembling the main shaft 30 into the insertion hole 8 of the main body 1 and fitting a part of the stopper 32 into the recess 9, the lateral vibration of the main shaft 30 relative to the bearing part 7 of the main body 1 can be prevented. The direction is insertion hole 8
Due to
It also has the advantage that it can be achieved by using 2.

In addition, when testing the timed operation of the clock mechanism provided inside the knob 2 prior to its assembly, the main shaft 30 is
The feature is that by rotating the knob, a timed operation test can be performed in the same way as a normal timed operation, even if the knob is turned alone.

Moreover, in that case, the above-mentioned stopper 32 has a role as a stopper member on the side of the main body 1 in the above, and the recess 9 in the above
On the other hand, the stopper 32, into which a part of the stopper is fitted, also has the role of preventing rotation of the main shaft 30 with respect to the main body 1. In other words, it has the effect of also fulfilling the third role.

Furthermore, even when testing the main body 1 with the knob 2, the main shaft 30 is inserted into the insertion hole 8 and the stopper 32 is placed in the recess 9, just as in the case of normal use. Another advantage is that it is possible to very easily test the rotation operation of the main body 17 in the setting direction, the timed operation in the return direction, the movement of the transmission piece 15 in the main body 1, and the stopped state of the knob 2.

[Brief explanation of the drawing]

The drawings show an embodiment of the present application; Fig. 1 is a partially cutaway front view of the timer, Fig. 2 is a perspective view of the main body and knob separated, and Fig. 3 is a view from the direction of the insertion hole. A front view of the main body as seen, and FIG. 4 is a front view of the knob as seen from the direction of the main shaft. 1...Main body, 2...Knob, 17...Main part, 3
0... Main shaft, 32... Stopper, 33... Operating piece, 8... Insertion hole, 9... Recess, 13... Driven piece.

Claims (1)

[Scope of utility model registration request] In a timer in which a knob 2 is rotatably provided at one end of the main body 1, a main body portion 17 of the knob 2 is provided.
is formed hollow, and the main shaft 3 is located inside it.
The main body 1 in the main body portion 17 is equipped with a clock mechanism consisting of a mainspring 28 for energizing the clock and a speed regulating mechanism 26 for controlling the rotation of the main shaft 30.
The tip of a rotatable main shaft 30 connected to the mainspring 28 and the speed regulating mechanism 26 is provided protruding from the center of the surface facing the main shaft 30. An actuating piece 33 for driving the driven piece 13 is provided at a lateral position across from the main shaft 30, and a stopper 32 is inserted in the radial direction from the base of the main shaft 30 from the bearing insertion gap 36. On the other hand, on the surface of the main body 1 facing the knob 2, a driven piece 13 is provided, which is connected to a transmission piece 15 for transmitting movement to the inside of the main body 1. A bearing part 7 is also provided with an insertion hole 8 that enables the tip of the main shaft 30 to be inserted and fixed, and the base part of the stopper 32 is fitted into the tip surface of the bearing part 7. The tip of the main shaft 30 is provided with a fitting recess 9 having a size that allows it to protrude laterally, and furthermore, on the opposing surface of the main body 1, when the main shaft 30 is inserted into the insertion hole 8 and is fixed, the actuation piece is inserted into the insertion hole 8. 33. A timer characterized in that the driven part of the driven piece 13 is located at a position that blocks the rotation locus of the driven piece 33, and the actuating piece 33 operates the transmission piece 15 after a set time period has elapsed.