JP4801500B2 - Rotation transmission device - Google Patents

Description

  The present invention relates to a rotation transmission device that can simultaneously transmit a rotational force at different rotational speeds to the outside.

Conventionally, a gear device such as a transmission is known as a rotation transmission device. There are various types of gear devices (for example, Patent Document 1 and Patent Document 2). In these patent documents 1 and 2, the gear apparatus provided with the planetary gear is described.
JP 2002-156010 A JP 2003-14059 A

  Generally, a gear device is rotationally driven by a motor as one drive source, and outputs a rotational force at a rotational speed proportional to the rotational speed of the motor from one output gear. In this case, the link mechanism or the like is operated by using the rotation of the output gear, but the link fluctuation speed is uniform and the link operation is uniform. Therefore, recently, it is conceivable to output rotational forces at different rotational speeds from a plurality of output gears. In this case, a separate gear device is required, and a drive source is also required for each. In addition, different rotational speeds can be output by combining a large number of gears, but the overall axial direction cannot be made compact.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to simultaneously output rotational forces at different rotational speeds with a single drive source, and to achieve axial compactness. It is providing the rotation transmission device which becomes.

The present invention includes a first rotation transmission member that is rotationally driven by a driving source, a fixed gear provided in a rotation blocking state coaxially with the rotation center of the first rotation transmission member, and the first rotation transmission. the eccentric portion of the member, a plurality of rolling rolling on the outer periphery of the first rotatably mounted to and said fixed gear and meshed with point symmetry arrangement of the rotation center of the rotation transmitting member the fixed wheel The guide pin provided at the eccentric portion of each of the rolling gears, the first rotation transmission member and the fixed gear, and a guide hole extending in the radial direction and extending in the radial direction in each guide pin. a corresponding to, having characterized in that the respective guide pins into each guide hole is provided with a second rotation transmitting member fitted slidably.

  When the first rotation transmission member is rotationally driven by the drive source, the rolling gear meshes with the fixed gear and rolls on the outer periphery of the fixed gear. The guide pin is also displaced by the rolling of the rolling gear. At this time, the rolling gear provided with the guide pin moves in accordance with the angular velocity of the first rotation transmission member, and the guide pin itself moves so as to substantially follow the epicycloid locus of the rolling gear. Thus, the angular velocity of the guide pin in the rotation direction of the first rotation transmission member is different from that of the first rotation transmission member. Since this guide pin is slidably fitted in the guide hole of the variable gear, the second rotation transmission member is moved (rotated). At this time, since the angular speed of the guide pin changes, the rotational speed in the circumferential direction of the second rotation transmission member differs from that of the first rotation transmission member. That is, the second rotation transmission member is accelerated and changes in a pulsating manner. Accordingly, it is possible to output rotational forces at different rotational speeds from the first rotation transmission member and the second rotation transmission member by one drive source. In addition, since the first rotation transmission member and the second rotation transmission member are arranged on the same axis, the axial direction can be made compact.

  According to the present invention, it is possible to provide a rotational transmission device that can transmit rotational forces at different rotational speeds to the outside at the same time with a single drive source and that is compact in the axial direction.

  An embodiment of the present invention will be described below with reference to the drawings. First, a gear device 1 according to the present invention will be described with reference to FIGS. A gear device 1 as a rotation transmission device includes a first gear 2 corresponding to a first rotation transmission member, a fixed gear 3, for example, three rolling gears 4, and similarly three guide pins 5. The second gear 6 corresponding to the second rotation transmission member and the cover gear 7 are provided.

  The first gear 2 is rotatably provided on a shaft 8 attached to a fixed frame (not shown), has a tooth portion 2a on the outer periphery, and a connecting rod 2b on a portion near the inner periphery of the tooth portion 2a. ing. The first gear 2 is rotationally driven by a motor 11 as a drive source described later. On the central axis of the first gear 2, a fixed gear 3 having a diameter smaller than that of the first gear 2 is provided in a non-rotatable state.

  Further, the first gear 2 is rotatably provided with, for example, three rolling gears 4 at an eccentric portion. The three rolling gears 4 are provided in a point-symmetric arrangement with respect to the rotation center of the first gear 2, rotate in mesh with the fixed gear 3, and rotate on the outer periphery of the fixed gear 3. Move.

Each rolling gear 4 is provided with the guide pin 5 at an eccentric part. The guide pins 5 are attached in such a relationship that the distance from the shaft 8 is the same.
The second gear 6 is rotatably provided on the shaft 8 (on the same axis as the first gear 2 and the fixed gear 3), and is aligned with the first gear 2 in the axial direction. In the second gear 6, three guide holes 6a extending in the radial direction are formed at equal intervals around the circumference. Further, arc-shaped escape holes 6b extending in the circumferential direction are formed between the guide holes 6a. A tooth portion 6 c is formed on the outer peripheral portion of the second gear 6.

  The cover gear 7 is rotatably provided on the shaft 8 and includes a tooth portion 7a having the same form (having the same gear diameter and the same number of teeth) as the tooth portion 2a of the first gear 2. The cover gear 7 is formed with three screw insertion holes 7c through which screws 7b for fixing the connecting rod 2b are inserted at equal intervals around the circumference. Note that the tooth portion 6 c of the second gear 6 has the same form as the tooth portion 7 a of the first gear 2 and the cover gear 7.

  Each guide pin 5 of the rolling gear 4 is slidably inserted into the guide hole 6 a and is prevented from being removed by a washer 9. The connecting rod 2b is inserted into the escape hole 6b of the second gear 6 and fixed to the cover gear 7 by a screw 7b. Therefore, the first gear 2 and the cover gear 7 rotate integrally. It is a configuration.

The gear device 1 is configured as described above.
The drive device 10 of the gear device 1 will be described. The drive device 10 includes a motor 11 that is a drive source, a first drive gear 12, and a second drive gear 13 having a tooth portion having the same form as this. The first drive gear 12 and the second drive gear 13 are provided on the rotation shaft of the motor 11 so as to rotate integrally therewith, and the first drive gear 12 meshes with the first gear 2. The second drive gear 13 is in mesh with the cover gear 7.

  Further, in the present embodiment, the gear device 1 is used as a driving device for an accessory driving mechanism 14 that operates an accessory of a gaming machine. The schematic configuration of the accessory driving mechanism 14 will be described. The accessory driving mechanism 14 includes a first accessory driving gear 15, a second accessory driving gear 16, and the same tooth portion configuration. And a third accessory driving gear 17. As will be apparent from the description below, the first to third accessory driving gears 15 to 17 are rotated in the direction of arrow E and the opposite direction while rotating a number of accessories 18 in the direction of arrow D. This is a configuration to be moved. Since this swinging configuration is not directly related to the present invention, the description thereof is omitted. The accessory driving mechanism 14 is provided in a center accessory 20 portion of a gaming machine (for example, a pachinko machine) 19, and the accessory 18 swings while rotating in the center accessory 20.

  Now, the operation of the gear device 1 will be described. In this case, the motor 11 is assumed to rotate at a constant rotational speed. When the motor 11 rotationally drives the first drive gear 12 and the second drive gear 13 in the direction of arrow A, the first gear 2 and the cover gear 7 rotate in the direction of arrow B. As shown in FIGS. 1 to 5, 7, and 8, the rolling gears 4 rotate around the shaft 8 in the direction of the arrow B (rolling) by the rotation of the first gear 2 in the direction of the arrow B. ). In this case, since each rolling gear 4 meshes with the fixed gear 3, it rolls around the fixed gear 3 while rotating in the direction of arrow C.

  The guide pin 5 is also displaced by the rolling of the rolling gear 4. At this time, the rolling gear 4 provided with the guide pin 5 moves according to the angular velocity of the first gear 2, and the guide pin 5 itself moves substantially along the epicycloid locus. The angular velocity of the guide pin 5 in the rotation direction of the first gear 2 is different from that of the first gear 2. Since the guide pin 5 is slidably fitted in the guide hole 6a of the second gear 6, the second gear 6 is moved (rotated). At this time, as described above, since the angular speed of the guide pin 5 is changed, the rotational speed of the second gear 6 is different from that of the first gear 2. That is, the speed of the second gear 6 is increased and the speed is changed in a pulsating manner. Therefore, the motor 11 that is one drive source can output torques of different rotational speeds from the first gear 2 and the second gear 6. Moreover, since the first gear 2 and the second gear 6 are arranged on the same axis, the axial direction can be made compact. The cover gear 7 rotates in synchronization with the first gear 2.

  The rotational forces of the first gear 2, the second gear 6 and the cover gear 7 are respectively the first accessory driving gear 15, the second accessory driving gear 16 and the third accessory driving gear. 17 respectively. At this time, the accessory 18 swings in a predetermined operation mode due to the difference in rotational speed between the accessory driving gears 15 to 17.

  As described above, according to the gear device 1 of the present embodiment, the first gear 2 and the second gear 6 can output rotational forces at different rotational speeds by the motor 11 that is one drive source. Moreover, since the first gear 2 and the second gear 6 are arranged on the same axis, the axial direction can be made compact. This compact configuration is highly suitable for use in gaming machines and thin devices.

  In particular, in the present embodiment, the first rotation transmission member and the second rotation transmission member are constituted by the gears 2 and 3, and the gears 2 and 3 are configured to transmit the rotational force to the outside. A simple rotation transmission structure can be obtained. The first rotation transmission member and the second rotation transmission member may be sprockets or pulleys.

  In addition, according to the present embodiment, a plurality of the rolling gears 4 are provided in a point-symmetric arrangement on the first gear 2, the guide pins 5 are provided on the respective rolling gears 4, and the second gears are provided. 6, the guide holes 6a corresponding to the guide pins 5 are provided, so that the rotational force can be imparted to the second gear 6 evenly and in a balanced manner by the three guide pins 5. Can be prevented.

  In addition, this invention is not limited to the said Example, You may implement as changed as follows. The cover gear 7 may be provided as necessary and is not necessarily required. Further, the tooth form (gear diameter and number of teeth) of the fixed gear and the rolling gear can be appropriately changed.

The perspective view of the gear apparatus which showed one Example of this invention and abbreviate | omitted the cover gearwheel The perspective view of the gear apparatus of the state which abbreviate | omitted the cover gearwheel and the 2nd gearwheel Perspective view of gear unit Front view of gear device with cover gear and second gear omitted Front view of gear device with cover gear omitted Exploded perspective view of gear device Perspective view of gear device, drive device and accessory drive mechanism Front view of gear device, drive device and accessory drive mechanism Front view of center part

Explanation of symbols

  In the drawings, 1 is a gear device (rotation transmission device), 2 is a first gear (first rotation transmission member), 3 is a fixed gear, 4 is a rolling gear, 5 is a guide pin, and 6 is a second gear. (Second rotation transmission member), 6a is a guide hole, 7 is a cover gear, 8 is a shaft, 10 is a drive device, 11 is a motor (drive source), 14 is a role driving mechanism, and 18 is a role.

Claims (2)

A first rotation transmission member that is rotationally driven by a drive source;
A fixed gear provided coaxially with the rotation center of the first rotation transmission member and in a rotation blocking state;
The eccentric portion of the first rotation transmission member is provided in a point-symmetrical arrangement with respect to the rotation center of the first rotation transmission member and is rotatable so as to mesh with the fixed gear. A plurality of rolling gears that roll,
A guide pin provided at an eccentric portion of each rolling gear;
The rotatably provided on the first rotation transmitting member and the fixed gear and coaxially, has a guide hole extending in a radial direction in correspondence to the each guide pin, each guide pin is slidable in the guide holes A rotation transmission device comprising: a second rotation transmission member fitted in a movable manner.   2. The rotation transmission device according to claim 1, wherein each of the first rotation transmission member and the second rotation transmission member includes a gear and transmits a rotational force to the outside.

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