JP4773334B2 - Pendulum device - Google Patents

Description

  The present invention relates to a pendulum device used for decoration of a watch or the like.

Known wall clocks and table clocks are equipped with a pendulum device for decoration. The pendulum device is configured such that a pendulum provided with a magnet is supported by a support portion, and a pendulum driving means that acts on the magnet is disposed outside the pendulum. This type of pendulum device is also disclosed in Patent Document 1. The pendulum device disclosed in Patent Document 1 uses a pendulum formed by assembling a plurality of members. By reversing the vertical position of the assembled member, the degree of freedom in setting the cycle can be increased. It is possible.
JP 2005-140543 A

  In recent years, the design of watches has been increasingly diversified, and the pendulum device described above is also excellent in decorativeness, versatility, assemblability, stability during driving, and diversity of pendulum movements, etc. What is improved is desired. This invention is made | formed in view of this situation, The objective is to provide the pendulum apparatus comprised more rationally.

This application is the invention according to the first claim, pendulum and a support which supports the pendulum can swing in pendulum apparatus having a pendulum driving means for oscillating the pendulum, the pendulum, the fulcrum The pendulum driving means swings the pendulum by acting on the magnet provided on the pendulum, and the support or the support is provided. The body mounting body is provided with a support portion that can move up and down, and the support portion is provided with a pair of magnets or magnetic bodies that attract the magnet provided on the pendulum, and is provided on the support portion. ago the pair of magnets or magnetic material positioned on both sides of the swinging direction of the pendulum, by vertically moving the support portion, which is provided with the magnet provided on the pendulum to the support portion By adjusting the distance between the pair of magnets or magnetic material, a pendulum apparatus having the configuration as can change the oscillating period of the pendulum.

  According to the present invention, a more rationally configured pendulum device can be obtained.

Embodiments of the present invention will be described below in detail with reference to the drawings. The pendulum device 1 of this example shown in FIGS. 1 to 8 is incorporated in a watch housing 10 to decorate the watch. The pendulum device 1 includes a pendulum 100, a plate-like support 200 that supports the pendulum 100 so as to be swingable, and a pendulum drive unit 300 that swings the pendulum. The housing 10 is configured to be mounted with a support 200. The pendulum 100 is swingably supported inside the housing. In addition, the support 200 is provided with a movement 400 for driving the hands of the watch. In addition, 11 and 12 in a figure are the magnets provided in the exterior of the pendulum 100, and the support part which supports it. These will be described in detail later.

  The pendulum 100 is supported by a knife edge-shaped shaft portion 210 provided on the support 200 and swings around the shaft portion 210 as a fulcrum. The pendulum driving means 300 swings the pendulum 100 by a magnetic action, and is provided at an important point of the support 200. Specifically, an induced voltage is generated in the detection coil when the magnet 111 provided in the pendulum 100 passes in the vicinity thereof, and when an induced voltage is generated in the detection coil, a current flows in the drive coil, and the drive coil becomes the magnet 111. The pendulum 100 is energized by repelling.

  This pendulum 100 is formed by assembling a first pendulum member 110 supported by a support 200 and a second pendulum member 120 connected to the lower portion of the first pendulum member 110. The first pendulum member 110 and the second pendulum member 120 are made of a synthetic resin-molded member. The first pendulum member 110 is provided with the magnet 111 described above, a hole 112 through which the shaft portion 210 is inserted, and a weight 113 having a predetermined weight. In addition, a curved portion 110 a for avoiding interference with the needle alignment 410 of the movement 400 is provided at a main point of the first pendulum member 110. A swing ball 121 is provided on the second pendulum member 120. The timepiece housing 10 exposes the second pendulum member 120 to the outside through a window, a transparent plate, or the like.

  Further, the pendulum 100 of this example is provided with a magnet 111 and a weight 113 in a portion above the shaft portion 210 serving as a fulcrum. The swing period of the pendulum 100 is delayed according to the weight of the part above the fulcrum. In other words, it has a structure that creates a relaxed and elegant movement.

  Next, a connection structure between the first pendulum member 110 and the second pendulum member 120 will be described. In the case of this example, a hook portion 122 is provided on one of the first pendulum member 110 and the second pendulum member 120, and a locking portion 114 for locking the hook portion 122 is provided on the other of them. In the illustrated pendulum 100, a hook portion 122 is provided on the upper portion of the second pendulum member 120, and a locking portion 114 is provided on the lower portion of the first pendulum member 110. The locking portion 114 is provided with a taper that reduces the diameter corresponding to the width of the hook portion 122 from top to bottom. The hook portion 122 is guided by the taper and locked at a predetermined position. It has a configuration. It is also possible to provide the hook part 122 at the lower part of the first pendulum member 110 and the locking part 114 at the upper part of the second pendulum member 120. The second pendulum member 120 is suspended from the first pendulum member 110 by locking the hook portion 122 to the locking portion 114.

  Further, in this example, the first pendulum member 110 is provided with a pair of projecting pieces 115 that sandwich the second pendulum member 120. The pair of projecting pieces 115 sandwich the upper vicinity of the second pendulum member 120 in the swinging direction of the pendulum 100. The second pendulum member 120 is configured to lock the hook portion 122 to the locking portion 114 and press fit between the pair of projecting pieces 115. The pair of projecting pieces 115 are parts integrally formed in the mold forming of the first pendulum member 110, and are elastically deformed to be pressed against the second pendulum member.

  Thus, since the pair of projecting pieces 115 are elastically deformed and press-contacted with the second pendulum member 120, the position of the second pendulum member 120 relative to the first pendulum member 110 does not move in the swinging direction of the pendulum 100. . Therefore, the swing of the pendulum 100 is reliably stabilized.

  Next, the relationship between the pendulum 100 and the support body 200 in this example will be described. In the case of this example, the pendulum 100 is provided with a weight in a portion above the shaft portion 210 that is the fulcrum, and the swing range of the portion above the fulcrum of the pendulum 100 is shown in FIG. As shown, the structure is included in the outline of the support 200 as viewed from the front of the support 200. A broken line in FIG. 6 indicates an outline of the support 200. A two-dot chain line in FIG. 6 indicates the position of the pendulum 100 when the swing width is maximum when the magnet 11 of the support portion 12 is not provided. According to such a configuration, there is an advantage that versatility and assemblability as a unit of the pendulum device 1 are improved. The concept will be described below.

  When the pendulum device 1 is incorporated in the housing 10, it is necessary to secure a swinging space for the pendulum 100 in the housing 10. In this regard, according to the configuration in which the swing range of the part above the fulcrum of the pendulum 100 is included in the outline of the support 200 when viewed from the front of the support 200, the design of the watch and the pendulum device with respect to the housing 10 1 is advantageous in that the support 200 serves as a standard for securing a rocking space in such a part.

  If the magnet 111 and the weight 113 are provided above the fulcrum of the pendulum 100, the swinging period of the pendulum 100 becomes slow, but the pendulum 100 is enlarged. In the design and assembly stages, the work must be performed while taking into consideration the rocking space of the part, which causes the work to be complicated. On the other hand, according to this example, the installation position of the support body 200 is determined, and a required swinging space is secured in accordance with the installation position. Therefore, the operation is relatively easy. Specifically, the casing 10 contains components such as a circuit board, a battery box, and a standard time radio wave receiving antenna. A swing space above the fulcrum of the pendulum 100 can be secured by setting a predetermined interval between these components and the support 200. That is, since it is not necessary to perform the work while checking the swing range of the pendulum 100, the work efficiency can be reliably improved. That is, the pendulum device 1 of this example has excellent versatility as a unit used for various watches.

  Next, the weight 113 and the weight mounting portion 116 for mounting the weight 113 will be described. The pendulum 100 of this example is provided with a weight mounting portion 116 at a position above the shaft portion 210 that is a fulcrum. The weight mounting portion 116 is provided at a main point of the first pendulum member 110.

  Further, in this pendulum device 1, the swing period of the pendulum 100 can be changed by changing the weight of the weight 113 attached to the weight attaching portion 116. The weight 113 is provided symmetrically with respect to a predetermined position of the weight mounting portion 116, and the position of the center of gravity of the entire pendulum 100 is shifted even if the weight of the weight 113 mounted on the weight mounting portion 116 is different. It is configured so that there is no. Specifically, the weight 113 has a cylindrical shape with the bottom surface directed in the front-rear direction, and the weight mounting portion 116 has a cylindrical inner peripheral surface on which the weight is fitted. The weight of the weight 113 attached to the weight attaching portion 116 is adjusted by changing the dimension of the weight 113 in the front-rear direction.

  In the case of this example, the center of gravity of the entire pendulum 100 including the magnet 111 and the weight 113 is set to be positioned at the center in the front-rear direction of the shaft portion 210. This is to stabilize the swing of the pendulum 100. If the center of gravity of the entire pendulum 100 moves due to the weight of the weight 113 to be mounted, the swing of the pendulum 100 may be unstable. According to this example, such inconvenience can be avoided. .

  Next, the magnet 111 of the pendulum 100 and the magnet 11 provided on the support portion 12 in this example will be described. In the case of this example, the support part 12 which fixed the pair of magnets 11 is provided so as to be movable with respect to the housing 10. The pair of magnets 11 are provided on both sides of the swinging direction of the pendulum 100 so as to sandwich the swinging region of the magnet 111 on the pendulum 100 side. More specifically, it is provided symmetrically about the fulcrum of the pendulum 100 so as not to block the swinging region of the magnet 111 on the pendulum 100 side. Each magnet 11 is fixed to the support portion 12 by fitting, screwing, or bonding. The magnet 111 on the pendulum 100 side and the magnets 11 on the support portion 12 side attract each other.

  The distance between the magnet 111 on the pendulum 100 side and the magnet 11 on the support portion 12 side is adjusted by moving the support portion 12. The pendulum 100 has a configuration in which the oscillation period can be changed by adjusting the interval between the magnet 111 on the pendulum 100 side and the magnet 11 on the support unit 12 side. When the support 12 is moved upward, the distance between them increases, and the force with which the magnets 111 and 11 attract is weakened. As a result, the swing period of the pendulum 100 is shortened (see FIG. 7). When the support 12 is moved downward, the distance between them decreases, and the force with which the magnets 111 and 11 are attracted increases. As a result, the swing period of the pendulum 100 becomes longer (see FIG. 8). The swing width of the pendulum 100 increases as the swing period increases, and decreases as the swing period decreases.

  The method of changing the swing period in this way is a method different from the method of changing the weight of the weight 113. The swing period of the pendulum 100 can be set in a range of approximately 2.0 to 1.2 seconds by first changing the weight of the weight 113. Furthermore, in this example, the swing period can be adjusted by moving the magnet 11 on the support portion 12 side. The swing cycle is lengthened by the force with which the magnets 111 and 11 are attracted. That is, it can be set in a range of about 2.5 to 1.2 seconds by combining two different methods.

Although the support structure of the support part 12 with respect to the housing | casing 10 is not specifically limited, For example, it is good to comprise so that the support part 12 may be screwed to the housing | casing 10, as shown in FIG. The support portion 12 is provided with an extending portion 12a that comes into contact with the housing 10, and the extending portion 12a is provided with a female screw portion 12b into which a bolt 13 that is a male screw component is screwed. In addition, a through hole 10 a through which the bolt 13 is inserted is provided at a key point of the housing 10. The through holes 10a are arranged in a plurality of rows in the vertical direction, and the support portion 12 can move in the vertical direction by selecting and changing the through holes 10a through which the bolts 13 are inserted. Alternatively, as shown in FIG. 10, it is possible to provide a long hole 10b that is long in the vertical direction and to be screwed with a thumb screw 14 that is a male screw part. In addition, although the example which provided the support part 12 in the housing | casing 10 so that a movement was possible was demonstrated, the support part 12 can also be comprised so that a support body 200 may be provided so that a movement is possible.

  According to such a configuration, the swing period of the pendulum 100 can be changed rationally. In particular, the pendulum 100 of this example is provided with a weight 113 above the fulcrum. In other words, since the weight balance between the upper and lower portions is secured to some extent around the fulcrum, the change in the oscillation cycle due to the action of the magnet 11 is large. That is, it can be said that the configuration of this example in which the swing period is adjusted by the magnet 11 provided outside the pendulum 100 is very effective in such a pendulum 100.

  Further, in this example, the magnet 111 is provided at a position above the fulcrum of the pendulum 100, and the pendulum driving means 300 swings the pendulum 100 by acting on the magnet 111, and the support portion 12. The side magnet 11 corresponds to the magnet 111. That is, the magnets of the pendulum driving means 300 and the magnets corresponding to the magnets 11 of the support portion 12 can be provided separately, but according to the common use of these magnets as in this example. A reduction in the number of parts can be achieved.

  Further, in this example, the magnet 111 on the pendulum 100 side and the magnet 11 on the support portion 12 side are attracted to each other. However, if at least one of them is a magnet, the other can be replaced with a magnetic material. When the magnet 111 on the pendulum 100 side is a magnetic body, the magnet of the pendulum driving means 300 is provided separately from the magnetic body.

  As described above, the pendulum device of this example is reasonably configured as a unit housed in a housing, and can be suitably used as a device for decorating a watch. In addition, it is needless to say that the configuration of each part in this example can be appropriately changed in design within the technical scope described in the claims, and is not limited to the illustrated example.

The pendulum device of the present invention can be suitably used as a decoration for a table clock or a wall clock.

It is a see-through | perspective front view which concerns on the Example of this invention and shows a pendulum apparatus. It is a see-through | perspective side view which concerns on the Example of this invention and shows a pendulum and a support part. It is a see-through | perspective front view which concerns on the Example of this invention and shows a pendulum. It is a see-through | perspective side view which concerns on the Example of this invention and shows a pendulum. (A) is a see-through | perspective front view which shows the principal part of a pendulum, (b) is a see-through | perspective side view which shows the principal part of a pendulum. It is explanatory drawing which concerns on the Example of this invention and shows rocking | fluctuation of a pendulum. It is explanatory drawing which concerns on the Example of this invention and shows rocking | fluctuation of the magnet provided in the support part (state which moved up), and the pendulum with respect to it. It is explanatory drawing which concerns on the Example of this invention, and shows rocking | fluctuation of the pendulum with respect to the magnet provided in the support part (state which moved below). It is explanatory drawing which shows the support structure of the support part with respect to the Example of this invention with respect to a housing | casing. It is explanatory drawing which concerns on the Example of this invention and shows the support structure of the support part with respect to a housing | casing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pendulum apparatus 10 Case 10a Through-hole 10b Long hole 11 Magnet 12 Support part 12a Extension part 12b Female thread part 13 Bolt 14 Thumb screw 100 Pendulum 110 First pendulum member 110a Bending part 111 Magnet 112 Hole part 113 Weight 114 Locking part DESCRIPTION OF SYMBOLS 115 Protrusion piece 116 Weight mounting part 120 2nd pendulum member 121 Pendulum ball 122 Hook part 200 Support body 210 Shaft part 300 Pendulum drive means 400 Movement 410 Needle alignment

Claims (1)

In a pendulum device comprising a pendulum , a support body that swingably supports the pendulum, and a pendulum driving unit that swings the pendulum,
The pendulum is provided with a magnet at a position above the fulcrum,
The pendulum driving means swings the pendulum by acting on a magnet provided in the pendulum,
The support or the housing to which the support is mounted is provided with a support portion that can move up and down, and the support portion is provided with a pair of magnets or magnetic bodies that attract the magnet provided on the pendulum,
The pair of magnets or magnetic bodies provided in the support part are respectively located on both sides of the swinging direction of the pendulum,
By moving the support part up and down , the interval between the magnet provided on the pendulum and the pair of magnets or magnetic bodies provided on the support part can be adjusted to change the swing period of the pendulum. A pendulum device characterized by the above.

Images