JPH0591768U - Small ball launcher - Google Patents

Abstract

(57) [Abstract] [Purpose] A small ball that enables the inner peripheral surface of a rail on which rolling balls are guided to be manufactured without complicated processing and stabilizes the trajectory of the fired small balls. Get a launcher. [Structure] One is that the outer shape of the roller is substantially drum-shaped, and the rail inner peripheral surface is a flat cylindrical surface.
One of the features is that a plurality of rollers are used and the angle formed by the roller axis 1 is larger than 0 degree and smaller than 180 degrees.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a lever in a rotating body for accelerating and ejecting a small ball to be rolled and released at a constant angle in a cylinder, and a small ball launching device devised in a roller shape incorporated in the lever.

[0002]

[Prior Art]

 A number of methods have been proposed for the rotary ejection type small ball launching device, and among them, the structure shown in FIG. 7 has been proposed as a method for launching small balls along the inner surface of a substantially cylindrical surface.

[0003]

[Problems to be solved by the device]

 In the conventional example, there is one roller for rotating the rolling small ball, and the rail for indicating the small ball is a groove having a substantially V shape, and this V groove is formed on the inner surface of the cylindrical surface. There is. It is not impossible to form a V-shaped groove on the inner surface of the cylindrical surface by machining such as cutting in order to machine a rail with V-shaped groove in one part, but the roughness of the machined surface is rough. However, there was a problem that the machining time was long and the cost was very expensive.

Therefore, an object of the present invention is to provide a device capable of discharging a stable rolling globule by using a component which can be easily processed, rather than a complicated and expensive processing such as inner surface processing of a cylindrical surface. The purpose is to do.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, one of the small ball launching devices of the present invention is one in which the outer shape of the rollers is substantially drum-shaped, and one of them is a plurality of rollers. The feature is that the small sphere is held at a certain position by the angle formed by the axis and is configured to be interlockable.

[0006]

【Example】

 Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a front view of a small ball launching device showing a first embodiment of the present invention.

FIG. 2 is a cross-sectional view showing the X-O cross section of FIG.

Since the small ball 1 is rolled, the lever 2 extending from the drive source is freely rotated around the center 0 of the lever. A roller 3 is rotatably instructed by a shaft 4 on the lever 2 and abuts on a small ball 1. The small ball 1 is in contact with the inner peripheral surface 5 ′ of the rail 5, and when the lever 2 rotates around the center 0, it rolls from position A to position B, C, and D, and is discharged from the firing port 6 of the rail 5 to E.・ Follow the trajectory of F. Here, the inner peripheral surface 5'of the rail 5 is a cylindrical surface having continuous flat surfaces. Further, the small ball 1 abuts on the slope 3'of the roller 3, and rolls while making point contact with the slope 3'of the roller 3 while abutting on the rail inner peripheral surface 5'and rolling.

FIG. 3 is a perspective view showing details of the roller of the first embodiment of the present invention.

(A) is an example in which the slope is formed in the V-groove shape on the roller 3, and (A) is an example in which the slope is formed in the U-groove shape in the roller 3. Further, even if the roller 3 has other shapes, it is in line with the present invention as long as the roller 3 points the small ball 1 so as to be guided at two points.

FIG. 4 is a front view of (A) and a perspective view of essential parts of a small ball launching device showing a second embodiment of the present invention.

The basic configuration is similar to that of the first embodiment, but the number of rollers is not one but two. The lever 7 rotatably directs two rollers 8 and 9 with a shaft 10 and a shaft 11, and the outer peripheral shapes of the rollers 8 and 9 are substantially cylindrical.

Here, the shapes of the rail 5 and the inner peripheral surface 5 ′ are the same as those in the first embodiment, and the lever 7 rotates around the center 0 (not shown) so that the small balls 1 can be rotated. Is abutted and rolled on the inner peripheral surface 5 ′ of the rail 5 and the rollers 8 and 9, and is discharged to the outside.

Here, the angle θ formed by the rollers 8 and 9 can be set to an appropriate angle larger than 0 degrees and smaller than 180 degrees.

FIG. 5 is a partial detailed view of the roller play preventing damper of the first embodiment inserted, and FIG. 6 is a partial detailed view of the roller play preventing damper of the second embodiment inserted. .. When the roller 3 or the roller 8 / the roller 9 rotates around the shaft 4 or the shaft 10 / the shaft 11, the track of the small ball 1 that rolls when there is much play, that is, the backlash is stable. There are times when you don't.

Therefore, by inserting the damper 12 between the lever 2 and the roller 3 to apply a pressure to the roller 3 in the direction of the arrow G, it is possible to suppress the play of the roller 3. Similarly, with respect to the rollers 8 and 9, by inserting the damper 13 and the damper 14, respectively, pressurization is given in the directions of the arrow H and the arrow I, respectively, so that the play of the rollers 8 and 9 is suppressed. be able to.

Here, there is no particular restriction on the direction of the pressurization G, H, and I and the position at which the damper is inserted, and it is sufficient to design the shape and structure appropriately.

[0019]

[Effect of the device]

 According to the small ball launching device of the present invention, it is possible to reduce the difficulty of a method of processing a component such as a rail, a high processing cost, and the degree of difficulty in assembling. The trajectory was extremely stable, and the driving noise during rolling of the small balls was also reduced, resulting in great cost.

[Brief description of drawings]

FIG. 1 is a front view of a small ball launching device showing a first embodiment of the present invention.

FIG. 2 is a sectional view showing an X-O section of the first embodiment of the present invention.

FIG. 3 is a perspective view showing details of a roller according to the first embodiment of the present invention.

4A and 4B are a front view and a perspective view of a main part of a device for observing a small ball and a device according to a second embodiment of the present invention.

[Figure 5]

FIG. 6 is a detailed view of a part in which a roller play damper is inserted.

FIG. 7 is a partial detailed view showing a part of a conventional example of a small launcher.

[Explanation of symbols]

 1 small ball 2,7 lever 3,8,9 roller 4,10,11 axis 5 rail 5'rail inner peripheral surface 6 launch port 12,13,14 damper

Claims (4)

[Scope of utility model registration request] 1. A rail having a continuous flat surface, which is a small window capable of emitting and ejecting small balls by cutting out a part of the cylinder, and a roller for rotating the small balls rolling on the rail along the inner surface of the cylinder. Ball launching device comprising a rotating body having a lever for supporting the. 2. The small ball launching device according to claim 1, wherein the roller shape is substantially drum-shaped, and a structure is provided in which a small spherical ball that is rolling while being in contact with the small ball is rotatably ejected from a part of the continuous concave surface of the hourglass shape. apparatus. 3. The small ball launching device according to claim 1, further comprising a plurality of rollers, wherein a narrow side of an inclination angle of an axis supporting the rollers is larger than 0 degree and smaller than 180 degrees. 4. The small ball launching device according to claim 2, wherein a buffer member for suppressing axial movement of the roller is provided on the shaft or the roller portion.