JPH0238352Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a setting mechanism used in watches, calendar devices, etc.

[Conventional technology and its problems] Conventionally, in a setting mechanism for adjusting the time of a digital clock, the mode and display of hours, minutes, seconds, month and day, stopwatch, timer, etc. can be changed by rotating a reuse (operating shaft). For example, Japanese Patent Application Laid-open No. 1983-
A technique disclosed in Publication No. 45487 is known. In this known technique, setting is performed by pressing a push button provided separately from the reuse button.

Therefore, according to this mechanism, mode switching and its display switching can be performed by reuse, but the set operation is performed using a push button, which makes it difficult to operate, and the disadvantage is that the number of parts is large and the configuration is complex, resulting in high cost. It was hot.

[Purpose of the invention] Therefore, the first object of the invention is to provide a setting mechanism for a watch or the like that can perform setting operations in addition to mode switching and display switching using a single operating axis.

A second object of the present invention is to provide such a setting mechanism at low cost and with a small number of parts.

[Means for achieving the object] In order to achieve the above object, the setting mechanism according to the present invention is supported so as to be movable in the axial direction between a normal position and a moving position, and in the normal position, the setting mechanism is rotatable. and an operating shaft that is capable of reciprocating rotation from the neutral position to the forward rotation side or the reverse rotation side within a certain angular range at the movement position, and a predetermined mode that is displayed on the outer circumferential surface through which the operation shaft passes through. a mode display drum to which the rotation of the operating shaft is transmitted only when the operating shaft is in the normal position; a mode switching means capable of switching in conjunction with the rotation of the mode display drum; a rocking member that cannot move in conjunction with the rotation of the operating shaft when the operating shaft is in the normal position and swings in conjunction with the reciprocating rotation of the operating shaft when the operating shaft is in the moving position; It is composed of a forward rotation switch that opens and closes when the member swings in the forward rotation direction, and a reverse rotation switch that opens and closes when the member rotates in the reverse rotation direction.

[Example] The details of the present invention will be explained with reference to an example shown in the accompanying drawings.

The operating shaft 1 is rotatably supported by shaft supports 2a, 2b, and 2c of the inner case 2 of the timepiece machine body. The operating shaft 1 is supported so as to be movable in the axial direction, and is clicked into a normal position and a moving position by a click protrusion 1a and click claws 2d, 2d of the inner case. The operating shaft 1 is integrally provided with a rectangular non-circular shaft portion 3 for interlocking the mode display drum 5 and a cam portion 4 for swinging the swinging member 9. The right end of the operating shaft 1 is a mounting portion 1b for a knob (not shown).

A cylindrical mode display drum 5 is loosely fitted around the outer periphery of the operating shaft 1. In this embodiment, the mode display drum 5 has four mode displays printed on its outer circumference: "current time,""alarmtime,""radio on time," and "radio off time," as shown in the second diagram. . The mode display drum 5 has a non-circular hole 5a with a square shaft-like cross section formed at the right end, and the non-circular shaft portion 3 of the operating shaft 1 has a slight gap in the non-circular hole 5a in the normal position. are mated. Therefore, when the operating shaft 1 is in the normal position, by rotating the operating shaft 1, the mode display drum 5 can be rotated through the non-circular shaft portion 3 and the non-circular hole 5a.

A click portion 5b is formed on the outer peripheral surface of the right end of the mode display drum 5, and is clicked at every 90 degrees by elastic contact with one spring portion 6a of a click spring 6 screwed to the inner case 2.

In the moving position where the operating shaft 1 is pulled out, the non-circular shaft portion 3 of the operating shaft 1 is designed to come out of the non-circular hole 5a of the mode display drum 5.
Therefore, in this position, even if the operating shaft 1 is rotated, the mode display drum 5 is not interlocked.

Mode cams 5c and 5d constituting mode switching means are integrally formed on the left side of the mode display drum 5. The mode cams 5c and 5d are the third
~4 The eccentric cams shown in the figures are formed, and two movable contact pieces 7A and 7B constituting a mode changeover switch are in elastic contact with these cams. Movable contact piece 7
A and 7B are attached to a printed circuit board 8, and the respective contacts 7a and 7b can be brought into contact with and separated from terminals 8a and 8b on the printed circuit board 8 by means of mode cams 5c and 5d. Therefore, the four modes shown in the second figure are electrically detected by the contact and separation of the contacts 7a and 7b and the terminals 8a and 8b.

A swinging member 9 is inserted into the mounting hole 2e of the middle case 2, and the swinging member 9 is attached to the support shaft 1 of the operating shaft 1.
c and the printed circuit board 8, making it swingable. The swinging member 9 has a central portion that can be engaged with the cam portion 4 when the operating shaft 1 is in the moving position, and has a protrusion 9a (sixth one) that cannot be engaged in the normal position.
(see figure) is formed. A forward rotation contact piece 10 and a reverse rotation contact piece 11 fixed to the printed circuit board 8 are in elastic contact with operating arms 9b and 9c extending vertically from the swinging member 9. These contact pieces 10, 11
A terminal 10 is provided on the printed circuit board 8 so that it can be connected to and separated from the terminal 10.
a and 11a are provided facing each other. That is, the forward rotation contact piece 10 and the terminal 10a constitute a forward rotation switch, and the reverse rotation contact piece 11 and the terminal 11a constitute a reverse rotation switch.

The other spring part 6b of the above-mentioned click spring 6 is in elastic contact with the cam part 4 of the operating shaft 1, which clicks the cam part 4 and prevents the operating shaft 1 from falling off from the inner case 2. ing.

Next, the operation will be explained.

When the operating shaft 1 is in the normal position, that is, in the pushed-in state, the non-circular shaft portion 3 fits into the non-circular hole 5a of the mode display drum 5. When the operating shaft 1 is rotated in this state, the spring portion 6a of the click spring 6
clicks the click portion 5b, the spring portion 6b clicks the cam portion 4, and the operating shaft 1
can be stopped every 90 degrees. In conjunction with the rotation of the operating shaft 1, the mode display drum 5 can be stopped at four mode display positions shown in the second figure, and a desired mode to be set is selected.

After this, the operating shaft 1 is pulled out to the moving position. As a result, the non-circular shaft portion 3 of the operating shaft 1 and the non-circular hole 5a of the mode display drum 5 are disengaged, and the mode display drum 5 becomes free, but this state is maintained by the spring portion 6a of the click spring 6. be done. Due to the movement of the operating shaft 1, the cam portion 4 moves to the protrusion 9a of the swinging member 9.
It becomes possible to engage with.

6 to 8, when the operation shaft 1 is rotated in the counterclockwise direction, the cam portion 4 comes into contact with the protrusion 9a, causing the swinging member 9 to swing in the counterclockwise direction. The end of the operating arm 9b of the swinging member 9 contacts the printed circuit board 8, and the forward rotation contact piece 10 contacts the terminal 10a. As a result, the normal rotation side is set in the desired mode. In this embodiment, the electric circuit is set so that the time is advanced, for example, every minute by contact between the forward rotation contact piece 10 and the terminal 10a, and by continuing to make contact, automatic fast forwarding is possible.

Next, when the operating shaft 1 is reversed clockwise, the swing member 9 is reversely rocked clockwise by the cam portion 4, and the operating arm 9c brings the reversal contact piece 11 into contact with the terminal 11a. This allows the clock to be reversed in the same way as the forward rotation described above.

In this way, the operating shaft 1 can be moved in the axial direction,
Since the mode switching and display switching are performed at the normal position and the set operation is performed at the moving position, the number of parts can be reduced, the configuration can be simplified, and the operation can be facilitated.

The invention can also be applied to setting or modifying calendar circuits, etc.

[Effects of the invention] According to the setting mechanism according to the invention described in detail above, in addition to mode switching and display switching, it is also possible to perform a setting operation using one operating axis. Furthermore, since the number of parts is small and the configuration is simple, assembly is easy and costs can be reduced.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a sectional view, FIG. 2 is a reduced view showing the mode display of the mode display drum, and FIGS. 3 to 6 are respectively similar to FIGS.
7 and 8 are cross-sectional views for explaining the operation, respectively. 1...Operation axis, 5...Mode display drum, 5
c, 5d...mode cam, 7A, 7B...movable contact piece of mode changeover switch, 8...printed circuit board,
8a, 8b... terminal, 9... rocking member, 9a...
Projection, 10... Contact piece for forward rotation, 11... Contact piece for reverse rotation, 10a, 11a... Terminal.

Claims (1)

[Claims for Utility Model Registration] The device is supported so as to be movable in the axial direction between a normal position and a moving position, and is rotatable in the normal position and can be rotated from a neutral position within a certain angular range in the moving position. The operating shaft is capable of reciprocating rotation toward the rotation side or the reverse rotation side, and the operating shaft passes through the operating shaft and a predetermined mode is displayed on the outer circumferential surface. a mode display drum to which the rotation of the operating shaft is transmitted; a mode switching means that is switchable in conjunction with the rotation of the mode display drum; and a mode switching means that cannot be switched in conjunction with the rotation of the operating shaft when the operating shaft is in a normal position. A swinging member that swings in conjunction with the reciprocating rotation of the operating shaft when the operating shaft is in the moving position, a forward rotation switch and a reverse rotation switch that open and close when the swinging member swings in the forward rotation direction. A setting mechanism for a watch, etc., characterized by having a reversing switch that opens and closes by movement.