JPH0182073U - - Google Patents
Info
- Publication number
- JPH0182073U JPH0182073U JP1987177408U JP17740887U JPH0182073U JP H0182073 U JPH0182073 U JP H0182073U JP 1987177408 U JP1987177408 U JP 1987177408U JP 17740887 U JP17740887 U JP 17740887U JP H0182073 U JPH0182073 U JP H0182073U
- Authority
- JP
- Japan
- Prior art keywords
- rotating body
- spring
- air
- batting practice
- practice machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Check Valves (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Description
第１図は本実施例の打球練習機の断面図、第２
図はエアポンプの部分断面図である。
１……基台、２……回転体、２１……軸、２２
……取付部、２３……止めネジ、３……保持棒、
４……ボール、５……補強スプリング、６……復
帰スプリング、７……エアポンプ、７１……シリ
ンダ、７２……ピストン、７２ａ……逆止弁、７
３……ニードル弁、７４……ロツド、８……カウ
ンタ。
Figure 1 is a sectional view of the ball batting practice machine of this embodiment;
The figure is a partial sectional view of the air pump. 1... Base, 2... Rotating body, 21... Axis, 22
... Mounting part, 23 ... Set screw, 3 ... Holding rod,
4... Ball, 5... Reinforcement spring, 6... Return spring, 7... Air pump, 71... Cylinder, 72... Piston, 72a... Check valve, 7
3... Needle valve, 74... Rod, 8... Counter.
Claims (1)
脱可能に取り付けられ先端部にボールが取り付け
られる保持棒と、上記回転体と上記基台との間に
掛け渡されるスプリングと、上記回転体が上記ス
プリングのバネ力に抗して回転する場合では空気
を吸引し上記スプリングのバネ力によつて上記回
転体が反転する場合では空気を圧縮して調整排気
するエアポンプとを具備して構成したことを特徴
とする打球練習機。 (2) 上記保持棒を板状のグラスフアイバで形成
したことを特徴とする実用新案登録請求の範囲第
１項記載の打球練習機。 (3) 上記エアポンプがニードルバルブを有する
ことを特徴とする実用新案登録請求の範囲第１項
又は第２項記載の打球練習機。[Claims for Utility Model Registration] (1) A rotating body that is pivotally mounted on a base, a holding rod that is removably attached to the rotating body and has a ball attached to its tip, and the rotating body and the base. When the spring stretched between the spring and the rotating body rotates against the spring force of the spring, air is sucked, and when the rotating body is reversed by the spring force of the spring, the air is compressed. A batting practice machine characterized by comprising an air pump for adjusting and exhausting air. (2) The ball batting practice machine according to claim 1, wherein the holding rod is made of a plate-shaped glass fiber. (3) The batting practice machine according to claim 1 or 2, wherein the air pump has a needle valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987177408U JPH0182073U (en) | 1987-11-20 | 1987-11-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987177408U JPH0182073U (en) | 1987-11-20 | 1987-11-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0182073U true JPH0182073U (en) | 1989-06-01 |
Family
ID=31469072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987177408U Pending JPH0182073U (en) | 1987-11-20 | 1987-11-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0182073U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5581671A (en) * | 1978-12-16 | 1980-06-19 | Tsuu Esu Boueki Kk | Training apparatus for ball game |
-
1987
- 1987-11-20 JP JP1987177408U patent/JPH0182073U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5581671A (en) * | 1978-12-16 | 1980-06-19 | Tsuu Esu Boueki Kk | Training apparatus for ball game |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS59175615U (en) | Hydraulic lifter for variable cylinders | |
| JPH0182073U (en) | ||
| JPH0451647U (en) | ||
| JPH037442U (en) | ||
| JPS6221486U (en) | ||
| JPS6399009U (en) | ||
| JPS5968636U (en) | Strainer setting device | |
| JPH0442394U (en) | ||
| JPH0460688U (en) | ||
| JPS6452676U (en) | ||
| JPH0369774U (en) | ||
| JPS61171957U (en) | ||
| JPS63151459U (en) | ||
| JPH01157930U (en) | ||
| JPH0387593U (en) | ||
| JPS6432473U (en) | ||
| JPS6190518U (en) | ||
| JPH01145420U (en) | ||
| JPS6284684U (en) | ||
| JPS62159983U (en) | ||
| JPS6120271U (en) | bolt supply tightening machine | |
| JPS63198484U (en) | ||
| JPS62145377U (en) | ||
| JPH0248261U (en) | ||
| JPS62159293U (en) |