JPS6148769U

JPS6148769U -

Info

Publication number: JPS6148769U
Application number: JP13485184U
Authority: JP
Priority date: 1984-09-05
Filing date: 1984-09-05
Publication date: 1986-04-01

Description

[Brief explanation of the drawing]

第１図：本考案一実施例の全体を示す正面図、
第２図：第１図実施例の平面図、第３図：第１図
実施例の射出部の正面図、第４，５図：第３図の
射出部の内部構造を示し、第４図はその正面図、
第５図はその平面図、第６図：第４図のＡＡ端面
図、第７図：第４図のＢＢ断面図。主な符号、１：卓球練習機、２：卓球台、３：
練習者、５：ピンポン球、６：バツクネツト、７
：環球部、８：ホツパー部、９：射出部、１０：
台盤部、１３：支軸、１４：ハウジング、１６：
球入口、１９：支承体、２１Ａ，２１Ｂ：ベルト
コンベアー、２２Ａ，２２Ｂ，２３Ａ，２３Ｂ：
ベルト車、２４：ばね体、２５：保持体、２６：
ベルト、２７Ａ，２７Ｂ：圧接子、２８：ガイド
板、２９：駆動車、３０：電動機。 Figure 1: Front view showing the entire embodiment of the present invention;
Figure 2: A plan view of the embodiment shown in Figure 1, Figure 3: A front view of the injection section of the embodiment shown in Figure 1, Figures 4 and 5: Internal structure of the injection unit shown in Figure 3, and Figure 4. is its front view,
5 is a plan view thereof, FIG. 6 is an AA end view of FIG. 4, and FIG. 7 is a BB sectional view of FIG. 4. Main codes: 1: Table tennis practice machine, 2: Table tennis table, 3:
Practitioner, 5: Ping pong ball, 6: Back net, 7
: Ring and ball part, 8: Hopper part, 9: Injection part, 10:
Base plate part, 13: Support shaft, 14: Housing, 16:
Ball entrance, 19: Support, 21A, 21B: Belt conveyor, 22A, 22B, 23A, 23B:
belt pulley, 24: spring body, 25: holding body, 26:
Belt, 27A, 27B: Pressure contact, 28: Guide plate, 29: Drive wheel, 30: Electric motor.

Claims

[Claims for Utility Model Registration] (1) In a table tennis practice machine having an ejection part that sequentially and continuously ejects ping pong balls, the ejection part has a single belt wrapped around the upper part and a single belt wrapped around the lower part. A pair of upper and lower belt conveyors that are parallel to each other and sandwich the ping pong balls between the upper and lower belts are built in, and the pair of belt conveyors are configured to be able to adjust their speeds individually, and furthermore, the injection ends of the pair of belt conveyors are is provided with an elastic pressure contact, which is formed symmetrically with respect to the vertical axes of the pair of belt conveyors, and presses against the upper, lower, left, and right circumferential surfaces of the clamped ping pong balls to correct the clamping posture. A table tennis practice machine with a unique structure. (2) A table tennis practice machine according to claim (1) of the utility model registration claim, in which two ejection units are arranged side by side.