JPS6136950Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pendulum support device.

In conventional devices of this kind, an edge for supporting a swinging rod is provided on the upper surface of the frame of the watch mechanism, and the swinging rod is provided with a V-groove that is placed on this edge. Some swing rods swing from side to side with the V-groove placed on them. If you want to prevent the pendulum from swinging when moving a clock, etc., use a swing rod holding member made of a separate member to hold the pendulum so that it does not swing while the V-groove is placed on the edge. was. For this reason, even when the pendulum is not in use, a load is applied to the edge, which is one of the causes of wear and tear on the edge.

The present invention provides a pendulum support device that can hold the V-groove away from the edge without using a separate member when the pendulum is not in use, such as during transportation, and prevents damage to the edge.Moreover, it has a simple configuration and a small number of parts. This is what we provide.

An embodiment of the present invention will be described.

In FIGS. 1 and 2, reference numeral 1 indicates a support member for a swinging rod 2, which in this example is a frame of a watch.

A clock mechanical body 3 is located in the center of the frame, battery storage chambers 4, 4 are located on the left and right sides of the frame, and a mounting portion 5 for the drive circuit of the swing rod 2 is located at the bottom. . 6 is a window in which a coil (not shown) in the drive circuit is located. A suspension means for a swinging rod 2, which will be described later, is provided on the upper surface of the support member 1.

At the upper end of the swinging rod 2, a substantially cylindrical swinging center body 7 is formed in the front and back horizontal directions. The center angle is approximately 120 on the lower surface of the front and rear ends of this swing center body.
V-shaped grooves 8, 8 facing downward are formed, and a concave groove 9 is formed in the middle thereof. A magnet holder 10 is provided at the lower end of the swinging rod 2 and can face the coil of the drive circuit. A locked portion 11 is integrally formed at the left corner of the lower surface of the holding portion 10 .

In this embodiment, the locked portion 11 is formed with sawtooth-like unevenness facing downward.

Regarding the means for suspending the swinging rod 2, edges 12, 12 on which the swinging rod V-grooves 8, 8 can be placed protrude horizontally on the upper surface of the frame 1, and a recess is provided in the middle. A protrusion 13 that can be inserted into the groove 9 with a gap is formed therein. Further, on the upper surface of the frame 1, a fall-preventing arch 14 is formed which straddles the middle of the swinging center body 7 in the front-rear direction from left to right. The arch 14 has a substantially semicircular arc shape, and is connected to the frame 1 at the left end, but not at the right end, so it has a cantilever shape, and therefore has elasticity in the vertical direction. . A gap is provided between the inner surface of the arch 14 and the swing center body 7, and the arch 14 and the swing center body 7 normally do not contact each other. A swing rod locking member 15 is integrally formed at a lower left corner position of the frame 1, which is a position deviating from the normal swinging range of the swing rod, and projects in the thickness direction of the swing rod. In this embodiment, as shown in the third figure, the locking member 15 has a sawtooth-like uneven locking surface 15a on its upper surface, on which the locked part 11 of the swinging rod can be locked, and In order to facilitate the movement of the stop portion, a curved guide surface 15b is gently connected to the right side. Furthermore, the locking surface 15a of the locking member 15 is located at a position slightly above the rocking locus of the locked portion 11. An arc-shaped guide surface 15b for facilitating the movement of the uneven surface 11 of the swinging rod is formed gently continuing from the position holding surface 15a.

Therefore, in order to suspend the swinging rod 2, arch 14
is slightly bent upward, the swinging center body 7 is inserted into the arch, and the V grooves 8, 8 are placed on the edges 12, 12. At this time, since the protrusion 13 is fitted into the groove 9 with a gap, the swing center body does not fall off.
In this state, the swing rod 2 swings smoothly on the edge.

To hold the pendulum in place so that it does not swing during transportation, etc., swing the lower end of the swing rod 2 to the left (larger than the amplitude of a normal pendulum) as shown by the chain line in Figure 1. , the locked portion 11 at the left corner of the lower end surface is moved from the guide surface 15b to the locking surface 15a.
Guide it upward and hold it in contact. When the locked portion 11 is located on the locking surface 15a, the V-groove 8 of the swing center body 7 is separated from the edge 12, so that the edge is not damaged. Further, the upper surface of the swing center body is in contact with the inner surface of the arch 14, and the protrusion 13 is in the groove 9.
The swing rod does not fall off because it does not fall off.

Note that the shapes of the locked portion 11 and the locking member 15 can be changed as appropriate.

As described above, according to the present invention, the V-groove, which is the swing center of the pendulum, can be held away from the edge without requiring any separate member during transportation, so damage to the edge can be prevented. The structure is simple and inexpensive, the swing rod is easy to lock and release, and it is easy to assemble, among other advantages.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a front view, FIG. 2 is a front view in a position-held state, and FIG. 3 is a partially enlarged front view in a position-held state. DESCRIPTION OF SYMBOLS 1... Support member, 2... Swing rod, 7... Swinging center body, 8... V groove, 9... Concave groove, 11... Locked part, 12... Edge, 13... Projection , 14...
Arch for preventing falling off, 15...Locking member.

Claims (1)

[Scope of Claim for Utility Model Registration] A swinging rod has a swinging center formed horizontally in the front and back at its upper end and a V recessed in its lower surface.
an edge on which the V-groove is placed on a support member that swingably supports the swinging rod; A locking member is formed with a fall-preventing arch positioned so as to straddle the swinging rod, and is capable of locking a locked portion formed on a part of the swinging rod at a position deviating from the normal swing range of the swinging rod. a member is formed on the support member, and the locking member is in a position where, when the locked portion is locked thereto, the locking member is pushed up and the V-groove is separated from the edge. Features a pendulum support device.