JPS6072577A - Hitting exerciser - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a batting line used for practicing tennis or baseball. There is. A device that can be launched directly overhead has also been proposed. However, all of them have the disadvantages that they have complicated mechanisms, have a large number of parts, are troublesome to assemble, and are expensive.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a batting practice machine that can hit the ball directly and forward, and when it is hit forward, can hit the ball left and right.

[Disclosure of the invention]

This invention hits! 121! The learning machine has a ball guide plate on which the Paw A/ is placed, which can be changed up and down in correspondence with the rr firing arm, and a ball μ position that shifts the ball on the Paw 7 guide plate to the left and right at the lowered position of the ball guide plate. It is equipped with a shifting mechanism.

Example. In the figure, reference numeral 1 denotes a casing, which has a pole punching hole 2 opening across the upper surface on the front surface and a pole feed port 3 (FIG. 2) on the rear surface. A guide connection piece 4 is provided around the ball insertion opening 3 for connecting a guide for supplying the ball yvM, and a handle 5 is provided on the top surface of the casing.

A base frame 6, a pole guide plate 7, a striking arm 8, and a ball position shifting mechanism 9 are provided inside the casing.
I'm here.

The ball guide plate 7 guides the ball (VM) from the ball supply port 3 to the pole punching hole 2, and has a planar shape of a 5-shape. Between the upper and lower parts around the support shaft 11 at the guide plate mounting point 10 at the rear end of the ball guide plate 7! l1ll L'
: The upper F switching hand 7L'12 provided on the front is freely defeated, and the upper F switching hand 7L'12 is removed from the casing's two-part notch 13a.
The angle can be changed by changing the hook on the lower notch 13b. When the ball guide plate 7 is turned upward or downward, it slopes slightly downward to the front so that the ball M rolls under its own weight, and also slopes downward slightly in the left-right direction toward the pole launch hole 2, and its lower end The stator 7 bar wall 14 is formed upwardly. The striking wall 14 is provided so as to position the ball 1vM at a position where the striking arm 8 strikes the center of the ball M.

The striking arm 8 is fixed to a rotating shaft 15, and the rotating shaft 15 is supported by a base frame 6 and a gear case 18 by a pair of bearings 16 and 17. The striking arm 8 has a spring locking pin 20 at the rear end.
has. A striking spring 22 is hung between the spring locking pin 20 and the spring (A+hipin 21) of the guide plate base 10.
A gear 24 is engaged via a rim (not shown), and a gear 26 provided on the output shaft of a reduction plate motor 25 is engaged with the gear 24.

The one-way grip prevents the striking arm 8 from reversing;
It allows free rotation in the forward direction (direction of arrow N in Figure 4). The gear case 18 is fixed to the base frame 6, and the motor 25 is fixed to the gear case 18.

The pole position shifting mechanism 9 includes a stopper bin 2 that enters and exits from a cutout hole provided in the stopper wall 14 of the Beaufre guide plate 7.
7 and its driving means. The stopper pin 27 is slidably supported by the pin holder 28 parallel to the rotation axis of the striking arm 80.

Sto J Papin 27 has a pin holding stand 2 with a support shaft 29 in the center.
The drive lever 30 is engaged with one end of the drive lever 30 supported by the lever 8 .

The curved end of the drive lever 30 is engaged with a groove of a cam 31 that is removably attached to the rotating shaft 18 of the striking arm 8.
The rotation of the striking arm 8 interlocks with the rotation of the strike arm 8. The pin 27 is reciprocated.

In addition, the outer surface of the casing 1 has a power switch, a border 32,
Pause switch, border 33, battery cover 34, counter 35, select button 30, digital switch 1. A switch 37 and a buzzer 38 are provided.

The operating pole VM enters the casing 1 through the pole μ supply hole 3, rolls on the pole guide plate 7, stops at a position where it abuts against the stopper wall 14, and is struck by the rotating striking arm 8. The striking arm 8 is rotated by the drive of the motor 25 to extend the striking spring 22.
At the next moment when the ball M reaches its maximum extension, the ball M is rapidly rotated by the energy μ of the impact spring 22 due to the action of a one-way clutch provided between the rotating shaft 18 and the gear 24, and the ball M is struck.

To change the direction in which the ball M is launched up or down, operate the switching hand /l/12. When the ball guide plate 7 is positioned downward, the hitting arm 8 is in the fifth position with respect to the ball M.
In order to launch at the position ID shown by the caustic line in the figure, Po A/M
is launched diagonally forward and upward, as shown by arrow I3. At this time, as shown in FIG. 6, the position of the ball M swings from side to side due to the striker and swing pin 27 reciprocating in the direction of the arrow F, so the position where the striking arm 8 hits the ball M shifts from side to side. As shown by arrow C, the ball is launched immediately, or as shown by arrow E, the ball is launched with a change to the left or right. Strike 2 Babin 27
Since the ball M't is moved left and right by a cam 31 attached to the rotating shaft 18, by making the shape of the cam 31 appropriate, the ball M't can be hit alternately on the left and right, or it can be hit in a constant direction. can do. -Also, when the guide plate 7 is positioned upward, the striking arm 8 against the pole MK is at the position indicated by the two-dot button line! To launch with Po V
M is fired almost directly upward as shown by the arrow.

At this time, as shown in FIG. 6, since the punch A/M is in contact with the fixed striker □-I wall 14, it is always struck in a fixed direction.

Because it operates in this way, when using this batting practice machine for all tennis batting practice, beginners should use the guide plate 7'! By raising the ball upwards and hitting the ball directly above the ball, you can practice the correct form with a constant hitting point.If you are somewhat skilled, you can lower the guide plate 7 toward the pole. You can practice in a form similar to the actual free ball by hitting the ball with M'& launch and one-sided ball.In addition, in this case, by changing the shape of the cam 31, you can divide the ball A/M into left and right. Since it is possible to practice twerking, it can be used by a wide range of people, from beginners to advanced users.In addition, the structure of the device is simple, so it is inexpensive. can be provided.

〔Effect of the invention〕

The batting practice machine of the present invention has the advantage of being able to hit the ball straight up and forward, and when hitting the ball down the front, it can hit the ball left and right.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 21 is a cross-sectional plan view thereof, FIG. FIG. 6 and FIG. 6 are respectively explanatory diagrams of the operation. 1... Cane knob, 2... Ball ejection hole, 3...
・Ball supply port, 6... Base frame, 7... Ball guide plate, 8... Hitting arm, 9... Shift 94/It, 2
7... strike, buckwheat pin, 30... drive lever, 31
...Cam 1st figure 2nd? Figure 5 Figure C Figure 6 Procedural amendment (voluntary) 1. The hand of the case in 1983 Special ff Kazumi 1839813; 2 Name of the invention r! Relationship between batting practice machine 3 and Sodeyama player 1 fl Applicant address Kadoma City, Osaka Prefecture 1048 Raku place name
(B1, (583) Matsushita Den-1-Co., Ltd.?1 representative old"
Iku Kobayashi 4th generation Osamu Jin 5.1 Yamashouri Ordinance 11 Ij Month 11 Showa 11 Specification and Drawing 7 Contents of Sleeve 1 (1) Specification No. 4, Line 11 and No. 5 13 correction susu

Claims (1)

[Claims] A casing having a ball supply port and a ball ejecting hole opened on the upper surface and the front surface, and a casing provided inside the ball ejecting hole so that its vertical position can be changed, and a hole μ inserted from the V supply port. A ball guide plate to be placed on the ball guide plate, a hitting arm that rotates around a horizontal rotational axis to hit the ball placed on the ball guide plate, a rotational drive device for this hitting arm, and a rotational drive device that is interlocked with this rotational drive device. A batting practice machine comprising: a ball position shifting mechanism that shifts the position of the ball on the ball guide plate in a direction along the rotational axis of the batting arm at a lowering position of the ball guide plate.