JPS5824653Y2 - Planetary gear type intermittent drive device - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a planetary gear type intermittent drive device.

The purpose of this invention is to provide a planetary gear type intermittent drive device with a simple structure that intermittently drives a driven body (not limited to a driven rotating shaft) with respect to a constantly rotating driving shaft.

This invention will be explained below with reference to illustrated embodiments.

The illustrated embodiment shows a case where the planetary gear type intermittent drive device of this invention is used in a bumper device for a pinball game.

In the figure, reference numeral 28 denotes a driving shaft whose gear 27 meshes with a pinion off 26 of the motor 25 and which is always rotated by the motor 25 at a constant speed.

In the figure, 29 is a sun gear fixedly attached to the driving shaft 28.

Further, numeral 23 in the figure is a single wheel that is loosely and slipably attached to the driving shaft 28 as shown in FIG.

In the illustrated example, the clutch wheel 23 is attached adjacent to the sun gear 29, and a compression clutch spring 31 is attached between it and a spring receiver 30 fixedly attached to the driving shaft 28.

Due to the force generated between the clutch spring 31 and the sun gear 29, the gear wheel 23 is moved against the drive shaft 28.
It is configured to perform the same rotation as.

Of course, the cutting wheel 23 is
When the gear wheel 23 is stopped, a slip occurs between the pinion wheel 23 and the driving shaft 28 and the sun gear 29, so that the rotation is completely controlled.

A planetary gear 14 meshing with a sun gear 29 is attached to the one side of the ratchet 23 by a shaft 32.

The rack 1 of the support frame 9, which is a driven body, is placed at any position within the range in which the planetary gear 14 revolves along with the wheel 23.
3 is installed so as to mesh with the planetary gear 14.

In other words, the rack 13 is an example of a driven gear.

The support frame 9 is swingably supported at one end by a pin 10, and the upper bumper piece 2a is attached to the upper end of the vertical portion 8.

In the figure, reference numeral 11 denotes a spring that constantly pushes the support frame 9 upward.

Incidentally, the lower bumper piece 2b is swingably supported by a shaft portion 17.17 of an arm 16 extending rearward of the plate-shaped frame 15, and is supported by a claw of a finger 21 as an operating member located in the front. 22 is configured to be freely engageable and detachable from the stopper 24 of the single wheel 23.

In the figure, 18 is a spring that constantly pushes the frame 15 upward;
, 19 are positioning stoppers.

To explain the effects of the planetary gear type intermittent drive device of this invention based on the operation of the bumper device, the game board 3
When the ball T rolling on top rides on the lower bumper piece 2b, the lower bumper piece 2b is pushed down by the weight of the ball T.

As a result, the pawl 22 comes off the stopper 24, and the Masasu wheel 2
3 starts the same rotation as the driving shaft 28.

Then, as shown in Figure 2, it is! The planetary gear 14, which was in a non-meshing state with the rack 13, is brought into a meshing state with the half-speed rack 13.

As shown in Fig. 4, the planetary gear 14 is replaced by the sun gear 29.
It plays the role of an intermediate gear between the rack 13 and the rack 13, and pushes the rack 13 and thus the support frame 9 downward.

For this reason, the upper bumper piece 2a is pulled down, and the upper and lower bumper pieces 2a and 2b move as if to pinch the ball T with their respective slopes 2a and 2b, and the ball 7 is thrown away.

Thus, later, when the stopper 24 of the loading wheel 23 returns to its original position, it engages with the pawl 22 of the finger 21 already waiting, and the rotation of the loading wheel is stopped, returning to its original state.

Of course, the use of the planetary gear type intermittent drive device of this invention is not limited to the above-mentioned bumper device.

This is because the driven body may be a rotating shaft and its gear may be configured to mesh with the planetary gear 14, and the number of such driven gears is not limited to one.

Also, whether or not to forcibly stop the rotation of the wheel depends on the application.

As described above, the planetary gear type intermittent drive device of this invention can be used in a wide range of applications, and since its structure is extremely simple and compact, it has great practical utility value.

[Brief explanation of drawings]

The drawings show an embodiment in which the planetary gear type intermittent drive device of this invention is applied to a bumper device for a pinball game, in which Fig. 1 is an exploded perspective view, Fig. 2 is a sectional view, and Fig. 3 is a sectional view of main parts. , FIG. 4 is a side view of the operating state. 28...Driving shaft, 29...Sun gear, 23...1
Ratchet wheel, 14... Planetary gear, 13... Rack (driven gear).

Claims (1)

[Scope of utility model registration request] A sun gear is fixedly attached to a constantly rotating driving shaft, a masonry wheel is attached to the same driving shaft so that it can slip, and a planetary wheel meshes with the sun gear on this housing wheel to rotate and revolve. A gear is attached, and a driven gear is installed which meshes with the planetary gear when the planetary gear is positioned at a predetermined angle within the range in which the planetary gear revolves, and a stopper is provided on the first wheel. A planetary gear type intermittent drive device, characterized in that the rotating planetary gear is temporarily stopped at a position where it meshes with a driven gear by an engaging/disengaging operating member.