JPS6322956U

JPS6322956U -

Info

Publication number: JPS6322956U
Application number: JP1986117397U
Authority: JP
Priority date: 1986-07-30
Filing date: 1986-07-30
Publication date: 1988-02-15

Description

[Brief explanation of the drawing]

図１は昔からのバツトの縦断面図。図２は昔か
らのバツトの受球衝撃の表示図。図３は昔からの
バツトの受球衝撃後の表示図。図４は昔からのバ
ツトの平衡点表示図。図５は本考案の縦断面図。
図６は図５の部分拡大断面図。図７は本考案の受
球衝撃横断面図。図８は本考案の別の一実施例図
。１……本体、２……内管、３……空気口、４…
…端蓋、５……液体、１１……打撃端、１２……
柄端、１３……拡大端頭、１４……一軸向空孔、
１５……凸環。 Figure 1 is a longitudinal cross-sectional view of a traditional bat. Figure 2 is a traditional representation of the impact of a bat receiving a ball. Figure 3 is a traditional bat display after receiving a ball. Figure 4 is a traditional butt equilibrium point diagram. FIG. 5 is a longitudinal sectional view of the present invention.
FIG. 6 is a partially enlarged sectional view of FIG. 5. FIG. 7 is a cross-sectional view of the ball receiving impact of the present invention. FIG. 8 is a diagram showing another embodiment of the present invention. 1...Main body, 2...Inner tube, 3...Air port, 4...
...End cover, 5...Liquid, 11...Blowing end, 12...
Handle end, 13... Enlarged end head, 14... Uniaxial hole,
15...Convex ring.

Claims

[Claims for Utility Model Registration] 1. A type of bat, including the following: A bat body, which is hollow, one end is a striking end with a relatively large outer diameter, and the other end is a grip handle with a relatively small outer diameter. A hole is provided in the end surface of the enlarged end of the grip handle end. The inner tube has a thin tubular shape and is designed in the hollow part of the bat main body, and its closed end extends to the inner edge of the striking end of the bat main body, and the open end is connected to the opening. a vent, one end connected to the open end of the inner tube, and another end provided for injecting air, and the vent can be fixed inside the vat body; and one end of the lid, a cavity in the vat body. The feature of this method is that air at an appropriate pressure is injected into the inner tube through the air opening, so that the entire outer edge of the inner tube is in close contact with the inner edge of the main body of the butt. 2. Pursuant to the statement in paragraph 1 of the above-mentioned utility model registration request part, a convex ring is designed on the inner edge surface of the handle end near the expanded end of the butt body, and one side of the convex ring near the striking end is designed with a small convex ring. Is it perpendicular to the axis of the bat?
Alternatively, it may be slightly convex and inclined toward the striking end. 3. Pursuant to the provisions of paragraph 1 of the above-mentioned utility model registration request section, a concave circular groove is provided at the edge of the air vent. 4. According to the statement in paragraph 1 of the above-mentioned utility model registration request part, an appropriate amount of liquid body with an appropriate specific gravity can be injected before injecting air body into the inner tube.