JP7087226B2 - Decorative member lifting device - Google Patents

Description

The present invention relates to a decorative member elevating device incorporated in a game table such as a pachinko machine.

A decorative member that moves up and down is provided on the board of a game table such as a pachinko machine, and the player moves up and down in relation to the hitting motion to enhance the interest of the player. These decorative members are usually driven by a motor of an elevating device built in the panel and elevate at a constant speed. However, recently, the elevating member has been freely dropped (bungee drop) from a high position in the board.

For example, in Patent Document 1, a pulley on which a decorative member is suspended is rotated by a motor to wind up the decorative member to a predetermined height, and then the motor is reversed to separate the pulley from the drive system and allow the decorative member to freely fall. A decorative member elevating device is disclosed. However, this device can only perform hoisting and free fall of the decorative member, and cannot perform a small ascending / descending motion (tilt motion) that causes the player to expect free fall.

Japanese Unexamined Patent Publication No. 2011-110203

Therefore, an object of the present invention is to solve the above-mentioned conventional problems and to provide a decorative member elevating device capable of performing a small elevating motion (tilt motion) in addition to hoisting and free fall of the decorative member. be.

The present invention made to solve the above problems includes an output shaft gear integrally provided with a pulley for suspending a decorative member, a drive gear driven by a motor gear, and a drive gear attached to the drive gear. It is a decorative member elevating device provided with a clutch arm urged in the rotation direction and a clutch gear provided at the tip of the clutch arm and transmitting the rotation of the drive gear to the output shaft gear, and is coaxial with the motor gear. A gear cam is provided to allow the clutch arm to swing the clutch arm in a direction away from the output shaft gear only when the motor gear is in a specific angle range, and it is driven by this gear cam, and the mechanical lock claw is used while winding the decorative member. Is provided with a mechanical lock lever that prevents the output gear from reversing by engaging with the output shaft gear, and the mechanical lock lever engages and disengages the mechanical lock claw with the output shaft gear via a slide lever driven by a gear cam. It is characterized by being.

Further, as in claim 2 , the output shaft gear is freely rotated by swinging the clutch arm in the direction in which the clutch gear is separated from the output shaft gear in a state where the mechanical lock claw is disengaged from the output shaft gear, and the decorative member. Can be dropped.

Further, as in claim 3 , with the mechanical lock claw disengaged from the output shaft gear, the clutch arm is swung in the direction in which the clutch gear engages with the output shaft gear, and the motor gear is rotated in the forward and reverse directions to form a decorative member. It can be raised and lowered in small steps.

In the decorative member elevating device of the present invention, when the motor gear is rotated in the normal direction, the clutch gear provided at the tip of the clutch arm meshes with the output shaft gear, and the rotation of the motor gear is performed via the drive gear and the clutch gear. It is transmitted to and the decorative member can be rolled up. During this time, the mechanical lock lever engages the mechanical lock claw with the output shaft gear to prevent the output gear from reversing, so that the decorative member does not fall.

Further, if the motor gear is reversed, the clutch arm is swung in the direction in which the clutch gear is separated from the output shaft gear. Therefore, if the mechanical lock claw is separated from the output gear by the mechanical lock lever in response to the reversal of the motor gear, the output gear becomes free and the elevating member can be dropped by its own weight.

Furthermore, if the mechanical lock claw is separated from the output gear by the mechanical lock lever and the motor gear is rotated forward and reverse in small angles while the clutch gear is in mesh with the output shaft gear, it is possible to move the elevating member up and down in small steps. Become.

It is a perspective view which shows the appearance of the decorative member elevating device of an embodiment. It is a perspective view which shows the internal structure of the decorative member elevating device of an embodiment. It is an exploded perspective view of the decorative member elevating device of an embodiment. It is a perspective view which shows the internal structure. It is a perspective view which shows the internal structure. It is an internal structure diagram which shows the neutral state. It is an internal structure diagram which shows the state which the motor gear is rotated clockwise from the neutral state. It is an internal structure diagram which shows the state which the motor gear is rotated counterclockwise from the neutral state. It is an internal structure diagram which shows the state during free fall. It is explanatory drawing of the winding state. It is explanatory drawing of the free fall state. It is explanatory drawing of the tilt start state. It is an explanatory diagram of the state during tilting.

Hereinafter, embodiments of the present invention will be described in detail.
FIG. 1 is a perspective view showing the appearance of the decorative member elevating device of the embodiment, FIG. 2 is a perspective view showing the internal structure thereof, and FIG. 3 is an exploded perspective view.

In these figures, 10 is a case attached to the game table, 11 is a case cover, and 12 is a pulley located in front of the case cover 11 to suspend a decorative member (not shown). The decorative member is suspended from the pulley 12 by a wire or a chain. Reference numeral 13 is an output shaft gear housed inside the case 10, and is integrated with the pulley 12 by the output shaft 14 penetrating the case cover 11.

Reference numeral 15 is a motor for driving the elevating device. The motor 15 is preferably a stepping motor that can rotate in both forward and reverse directions. A motor gear 16 and a gear cam 17 are attached to the rotating shaft of the motor 15. The gear cam 17 is integrated with the motor gear 16 and is a cam having a notch 18 formed in a part of a cylinder. Its action will be described later.

Reference numeral 19 is a drive gear pivotally supported by the case 10 at a position above the motor gear 16. The drive gear 19 is always in mesh with the motor gear 16. A clutch arm 20 is attached to the drive gear 19 via a clutch spring 21. The clutch spring 21 may exist between the drive gear 19 and the clutch arm 20 and may cause resistance between the two, and is not limited to the clutch spring 21 of this embodiment. The clutch arm 20 swings in the same direction as the drive gear 19, but even when the protrusion 22 of the clutch arm 20 comes into contact with the gear cam 17 and cannot swing any further, only the drive gear 19 is forcibly rotated. Is also possible.

As shown in FIGS. 3 and 4, a clutch gear 23 that always meshes with the drive gear 19 is pivotally supported at the tip of the clutch arm 20. When the motor gear 16 rotates normally in the clockwise direction, the drive gear 19 rotates counterclockwise to rotate the clutch arm 20 in the counterclockwise direction. Since the clutch gear 23 engages with the output shaft gear 13 described above by the rotation of the clutch arm 20, the rotation is transmitted in the path of the motor gear 16 → the drive gear 19 → the clutch gear 23 → the output shaft gear 13, and the output shaft gear 13 Can rotate counterclockwise to wind up the decorative member.

As shown in FIG. 5, a mechanical lock lever 25 is pivotally supported by a shaft 24 on the lower left side of the output shaft gear 13, and a mechanical lock claw 26 is provided at the lower end thereof. Since the mechanical lock lever 25 is urged counterclockwise by the tension spring 27, the mechanical lock claw 26 comes into contact with the back surface of the teeth of the output shaft gear 13 (left surface in FIG. 5) during winding, and the output shaft is affected by the weight of the decorative member. It prevents the gear 13 from reversing. Since the mechanical lock lever 25 clicks and swings for each tooth of the output shaft gear 13 at the time of winding, a photoelectric sensor 50 is provided on the upper part of the mechanical lock lever 25, and the winding height is counted by counting the number of swings. Is being detected. See FIG. 10 below for this point.

When allowing free fall, it is necessary to rotate the mechanical lock lever 25 in the clockwise direction to separate the mechanical lock claw 26 from the output shaft gear 13. In this way, the slide lever 30 is provided in order to rotate the mechanical lock lever 25 in the clockwise direction against the tension spring 27. The slide lever 30 is provided with a horizontally long through hole 31, and a substantially elliptical protrusion 32 of the clutch arm 20 is fitted therein, so that the slide lever 30 can slide left and right.

A bifurcated portion 33 is provided at the tip of the slide lever 30, and a protrusion 34 of the mechanical lock lever 25 is fitted inside the bifurcated portion 33. A release lever 35 is provided at the base end of the slide lever 30. The release lever 35 is pivotally supported by a shaft 36 of the case 10, and has a claw-shaped protrusion 37 at the lower portion thereof, which is in contact with the gear cam 17 described above. The claw-shaped projection 37 is always urged in the direction of contact with the gear cam 17 by the string winding spring 38 shown in FIG. The shaft 39 on the upper part of the release lever 35 is fitted in the hole 40 at the base of the slide lever 30.

Therefore, as shown in FIG. 6, when the gear cam 17 rotates within a specific angle range and the motor gear 16 and the gear cam 17 rotate clockwise from the neutral state in which the claw-shaped protrusion 37 is inserted in the notch portion 18, FIG. 7 As shown in the above, the release lever 35 swings counterclockwise while being pushed by the gear cam 17, and slides the slide lever 30 to the left. However, the mechanical lock lever 25 does not move even if the bifurcated portion 33 slides to the left. On the other hand, when the motor gear 16 and the gear cam 17 are reversed counterclockwise from the position shown in FIG. 6, the release lever 35 swings clockwise while being pushed by the gear cam 17, and the mechanical lock lever 25 is moved to the right. Slide it. As a result, the bifurcated portion 33 pushes the protrusion 34 of the mechanical lock lever 25, so that the mechanical lock lever 25 swings clockwise and the mechanical lock claw 26 separates from the output shaft gear 13. The operation of this device will be described below.

(Rolling)
FIG. 10 shows a state during winding. When the motor gear 16 is rotated in the clockwise direction, the drive gear 19 rotates in the counterclockwise direction and the clutch arm 20 is rotated in the counterclockwise direction. Then, since the clutch gear 23 engages with the output shaft gear 13, the output shaft gear 13 rotates counterclockwise to wind up the decorative member. The mechanical lock lever 25 is located at the position shown in FIG. 7, and the mechanical lock claw 26 abuts on the back surface of the tooth for each tooth to prevent the output shaft gear 13 from reversing due to the weight of the decorative member. The winding position is detected by the photoelectric sensor 50. Since this state is maintained while the motor gear 16 is rotating in the normal direction, the decorative member can be wound up to an arbitrary height by rotating the motor gear 16 many times.

(free fall)
FIG. 11 shows a state of free fall. When the motor gear 16 is reversed counterclockwise to the position shown in FIG. 9 at an arbitrary position after winding, the drive gear 19 rotates clockwise and the clutch arm 20 rotates clockwise. At this time, the protrusion 22 of the clutch arm 20 falls into the notch 18 of the gear cam 17, and the clutch arm 20 can be rotated significantly, so that the clutch gear 23 is separated from the output shaft gear 13. At this time, as shown in FIG. 11, since the notch 18 of the gear cam 17 is on the right side, the claw-shaped protrusion 37 of the release lever 35 is in the position pushed out by the gear cam 17, and the release lever 35 is clockwise. It swings and slides the slide lever 30 to the right. As a result, the bifurcated portion 33 pushes the protrusion 34 of the mechanical lock lever 25, the mechanical lock lever 25 swings clockwise, and the mechanical lock claw 26 separates from the output shaft gear 13. As a result, the output shaft gear 13 is in a free state without restraint, and the decorative member can be freely dropped (bungee dropped) by its own weight.

(Aori)
12 and 13 show the state of the tilting motion. In the state where the motor gear 16 is rotated to the position shown in FIG. 12, the claw-shaped protrusion 37 of the release lever 35 is in the position pushed out by the gear cam 17, as in the case of free fall in FIG. 11, so that the mechanical lock claw 26 is the output shaft. It is far from the gear 13. However, the protrusion 22 of the clutch arm 20 does not fall into the notch 18 of the gear cam 17, and is pushed out as shown in FIGS. 12 and 13. Therefore, the rotation of the clutch arm 20 is restricted, and the clutch gear 23 is in a state of being engaged with the output shaft gear 13.

When the motor gear 16 is reversed from the state of FIG. 12 to the state of FIG. 13, the clutch gear 23 is reversed while being engaged with the output shaft gear 13, so that the output shaft gear 13 rotates clockwise and is a decorative member. Will descend slightly. If the reverse rotation of the motor gear 16 is continued as it is, it will be in a free fall state, but if the motor gear 16 is rotated forward from the state shown in FIG. 13 to the position shown in FIG. 12, the clutch gear 23 remains engaged with the output shaft gear 13 and is positive. As it rolls, the output shaft gear 13 rotates counterclockwise and the decorative member rises slightly. In this way, if the motor gear 16 is reversed and forwardly rotated in small steps between FIGS. 12 and 13, the decorative member repeats the ascending / descending motion in small steps.

If the motor gear 16 is further reversed in the counterclockwise direction from the state shown in FIG. 12, the decorative member can be freely dropped by its own weight in the state shown in FIG. On the contrary, if the motor gear 16 is rotated clockwise from the state shown in FIG. 12, the decorative member can be wound up in the state shown in FIG. This tilting motion is started by reversing the motor gear 16 from the state shown in FIG. 12, and is independent of the height of the decorative member. Therefore, it is possible to perform the tilting exercise at an arbitrary height.

As described above, the device of the present invention can be made to perform a tilting motion at an arbitrary height in addition to the winding and free fall of the decorative member, so that the player's interest can be enhanced. Further, since the device of the present invention can perform various operations only by a single motor 15, the device can be designed compactly and has an advantage that it can be easily incorporated in the game board.

10 Case 11 Case cover 12 Pulley 13 Output shaft Gear 14 Output shaft 15 Motor 16 Motor gear 17 Gear cam 18 Notch 19 Drive gear 20 Clutch arm 21 Clutch spring 22 Protrusion 23 Clutch gear 24 Shaft 25 Mechanical lock lever 26 Mechanical lock claw 27 Pull spring 30 Slide Lever 31 Through hole 32 Protrusion 33 Bifurcated part 34 Protrusion 35 Release lever 36 Shaft 37 Claw-shaped protrusion 38 String winding spring 39 Shaft 40 Hole 50 Sensor

Claims (3)

The output shaft gear provided integrally with the pulley that suspends the decorative member,
A drive gear driven by a motor gear, a clutch arm attached to this drive gear and urged in the rotational direction of the drive gear, and
A decorative member elevating device provided at the tip of the clutch arm and provided with a clutch gear that transmits the rotation of the drive gear to the output shaft gear.
A gear cam is provided coaxially with the motor gear to allow the clutch arm to swing in the direction away from the output shaft gear only when the motor gear is in a specific angle range.
Driven by this gear cam, a mechanical lock lever is provided to prevent the output gear from reversing by engaging the mechanical lock claw with the output shaft gear while winding up the decorative member .
The mechanical lock lever is a decorative member elevating device characterized in that the mechanical lock claw is engaged with and disengaged from the output shaft gear via a slide lever driven by a gear cam . With the mechanical lock claw disengaged from the output shaft gear, the clutch arm is swung in the direction away from the output shaft gear to freely rotate the output shaft gear and drop the decorative member . The decorative member elevating device according to claim 1. With the mechanical lock claw disengaged from the output shaft gear, the clutch arm is swung in the direction in which the clutch gear engages with the output shaft gear, and the motor gear is rotated in the forward and reverse directions to raise and lower the decorative member in small steps. The decorative member elevating device according to claim 2 .

Images