JP2016202282A - Baseball base - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simple type fixed baseball base that can be fixed to a ground surface against a strong impact applied when baseball is played, has a buffer effect against a strong impact, and can be installed on and removed from the ground surface in a simple manner.SOLUTION: A baseball base 1 includes a fixing tool 2 installed on a ground surface and a baseball base body 3 in which a cavity 3a for mounting the baseball base body on the fixing tool is formed. The baseball base body is fixed to the fixing tool by being mounted on the fixing tool. The fixing tool includes an elastic fixing component 21 and three or more rod-like components 22 provided to the fixing component penetrating a guide hole 21a in an oblique direction with respect to the ground surface, one side of which is connected to the fixing component and the other side of which is inserted into the ground surface.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a baseball base. More specifically, baseball bases for first base, second base and third base that can be fixed to the ground by a simple method at the time of installation (hereinafter, “baseball base” refers to a baseball base used as a sign for first base, second base and third base) .)

Baseball as a sport is popular in many countries and regions, including Japan, the United States, South Korea, Taiwan and Cuba.
In baseball, a baseball base is used by being fixed to the ground. In a state in which the baseball base is fixed to the ground, the baseball base has a certain height from the ground, and is a square having a side of about 350 to 400 mm from the angle of looking down the ground from the vertical direction. I am doing.

According to the rules of baseball, a human touches the baseball base by stepping on each heel with his feet or touching his hand while sliding his body on the ground. In addition, since humans are required to contact the baseball base before the opponent team, if necessary, they step on the baseball base while running at full power, or contact the baseball base by sliding, etc. .
Therefore, the impact applied to the baseball base is large, and the impact generated from the baseball base to the human is also large.
Since the baseball base does not move from a fixed position due to an impact applied by a human, the baseball base needs to be securely fixed to the ground.

Further, in order to prevent human beings from being injured when contacting with the baseball base, the baseball base needs to have a certain buffering action against a strong impact or an action to release the fixing while being fixed to the ground.
In order to effectively use the ground, it is necessary to install and remove the baseball base with respect to the ground used as the baseball ground by a simple method.

Regarding the baseball base with a fixing function, as a baseball base with a fixing function that can safely and reliably fix the baseball base to the ground, a fixing member that is fixed to the ground by an anchor bolt, and a covering member that covers the fixing member There is known a baseball base with a fixing function that is composed of a base body having a concave portion formed on the bottom surface (Patent Document 1).
However, in the baseball base with a fixing function described in the above-mentioned document, the anchor bolts are inserted perpendicularly to the ground and the plurality of anchor bolts are fixed in parallel. There was a problem that the anchor bolt fixing the base slips out of the ground and the baseball base moves from a fixed position. In addition, when the anchor bolt is pulled out, there is a problem that humans are seriously injured at the tip of the anchor bolt.

  In Patent Documents 2 and 3, a baseball base having a large number of protrusions on the back surface is disclosed. However, fixing to the ground is not sufficiently strong, and depending on the state of the ground, the baseball base There was a problem that the upper surface could not be fixed parallel to the ground, and instead became unstable (Patent Documents 2 and 3).

JP 2001-58019 A Shokai 57-128872 Shokai Sho 55-85071

  The present invention intends to solve the above-described problems of the prior art. That is, the present invention can be fixed to the ground against strong impacts applied during baseball games, has a certain buffering action against strong impacts, and is installed and removed from the ground in a simple manner. An object is to provide a simple baseball fixed base that can be used.

  As a result of earnest research, the inventor of the present invention is a baseball base including a fixture to be installed on the ground and a baseball base body in which a cavity for mounting on the fixture is formed. The fixing device is fixed to the fixing device by being attached to the fixing device, and the fixing device includes a fixing component that is an elastic body, one side that penetrates the fixing component and is joined to the fixing component, and the other side to the ground. Three or more rod-shaped parts to be inserted, and the fixture is fixed to the ground when the rod-shaped parts are inserted into the ground, and the fixed parts pass through the rod-shaped parts at a certain angle. The rod-shaped component has the above-described guide holes, and the rod-shaped component penetrates the fixed component by being inserted into the guide hole, and when the fixed component is fixed to the ground by the rod-shaped component, Inserted side By making the intersection of the vertical line passing through the tip position and the ground at a position farther from the center of gravity of the fixed part than the position of the area where the bar-shaped part and the ground intersect, I found that the problem could be solved.

That is, the present invention resides in the following (1) to (3).
(1) A baseball base comprising a fixture to be installed on the ground and a baseball base body in which a cavity for mounting on the fixture is formed,
The baseball base body is fixed to the fixture by being attached to the fixture,
The fixing device includes a fixing component that is an elastic body, and three or more rod-shaped components that penetrate the fixing component, one side is joined to the fixing component, and the other side is inserted into the ground.
The fixture is fixed to the ground by inserting the rod-like component into the ground,
The fixed component has three or more guide holes that penetrate the rod-shaped component at a constant angle, and the rod-shaped component penetrates the fixed component by being inserted through the guide hole,
When the fixed component is fixed to the ground by the rod-shaped component, the intersection of the vertical line passing through the tip position of the rod-shaped component inserted into the ground and the ground is the position of the region where the rod-shaped component and the ground intersect A baseball base characterized by being located farther from the center of gravity of the fixed component.
(2) The baseball base according to (1) above, wherein the fixed component further includes a slidable member that can be inserted through the rod-shaped component and is in contact with the inside of the guide hole.
(3) The baseball base as described in (1) or (2) above, wherein the bar-shaped part is provided with a portion whose strength is relatively weaker than other portions.

  According to the present invention, it is possible to provide a baseball base that is easy to install and remove, can fix the baseball base against strong impacts, and can reduce the possibility of human injury during competition. it can.

It is the longitudinal cross-sectional view seen along the horizontal direction of the baseball base which concerns on embodiment. It is the longitudinal cross-sectional view seen along the horizontal direction of the said baseball base which shows the positional relationship with the gravity center of a stationary component, a rod-shaped component, and the ground in the baseball base which concerns on embodiment. It is the perspective view which looked down at the AA cross section of FIG. 1 from perpendicular | vertical upper direction. It is a figure which shows other embodiment of a rod-shaped component.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
The accompanying drawings are for illustrating the embodiments of the present invention, and do not limit the present invention to the illustrated embodiments.

[Baseball Base 1]
As shown in FIGS. 1 and 2, the baseball base 1 according to the embodiment includes a fixture 2 installed on the ground 4 and a baseball base body 3 in which a cavity 3 a for mounting on the fixture 2 is formed.
The baseball base body 3 is fixed to the fixture 2 by being attached to the fixture 2, and the fixture 2 penetrates the fixing component 21 that is an elastic body and the fixing component 21 on one side to the fixing component 21. 3 or more rod-shaped components 22 which are joined and inserted into the ground 4 on the other side.
The fixture 2 is fixed to the ground 4 by inserting the rod-shaped component 22 into the ground 4. The fixed component 21 has three or more guide holes 21a that allow the rod-shaped component 22 to pass through at a constant angle.
The rod-shaped component 22 passes through the fixed component 21 by being inserted into the guide hole 21 a, and the fixed component 21 is fixed to the ground 4 by the rod-shaped component 22. At this time, the intersection 4a between the vertical line passing through the tip position of the rod-shaped component 22 on the side to be inserted into the ground 4 and the ground is from the region where the rod-shaped component 22 and the ground 4 intersect (the insertion position of the rod-shaped component 22) 4b. Is located far from the center of gravity 21 b of the fixed component 21.
The baseball base 1 according to the embodiment is fixed to the ground 4 by fixing the fixture 2 to the ground and attaching the baseball base body 3 to the fixture 2.

The baseball base body 3 according to the embodiment has a baseball base shape outside the surface that is in contact with the ground 4 during use.
The baseball base body 3 has a cavity 3a for mounting on the fixture 2 on a surface in contact with the ground 4 during use.
The baseball base body 3 is preferably attached to the fixture 2 by fitting a portion protruding from the ground 4 of the fixture 2 into the cavity 3 a of the baseball base body 3.
By attaching a member such as a hook-and-loop fastener, a hook, etc. that can be fixed to each other to the inner surface of the cavity 3a of the baseball base body 3 and the fixing component 21 of the fixture 2 and can be removed after use, It may be strong.

[Fixture 2]
The fixture 2 includes at least a fixing component 21 and three or more rod-shaped components 22.
When the baseball base 1 according to the embodiment is installed, the fixture 2 is first fixed to the ground 4 and then the baseball base body 3 is attached.
The fixture 2 is fixed to the ground 4 by inserting three or more bar-shaped parts into the ground 4. The fixing component 21 in the fixing tool 2 is provided with a guide hole 21a through which the rod-shaped component 22 can be inserted.
The angle and position at which the bar-shaped part 22 penetrates the fixed part 21 are determined by the angle and position of the guide hole 21a.

When the fixing component 21 is fixed to the ground 4 by the rod-shaped component 22, the fixture 2 has an intersection of the vertical line passing through the tip of the rod-shaped component 22 on the side inserted into the ground 4 and the ground 4. Is fixed to the ground 4 in a state of being farther from the center of gravity of the fixed component 21 than the intersection of the ground 4 and the ground 4.
The bar-shaped parts 22 are preferably inserted into the ground 4 at an angle at which three or more bar-shaped parts 22 are not parallel to each other.

  The intersection 4a between the vertical line passing through the tip of the rod-shaped component 22 on the side inserted into the ground 4 and the ground is a fixed component rather than the region (insertion position of the rod-shaped component 22) 4b where the rod-shaped component 22 and the ground 4 intersect. 21 is located far from the center of gravity 21b, so that when a horizontal impact is applied to the baseball base 1 according to the embodiment, the bar-shaped component 22 bites deeper into the ground, and the baseball base 1 is firmly fixed to the ground 4. The

[Fixed part 21]
The material of the fixed component 21 is not particularly limited as long as it has a certain strength and elastic modulus. Rubber, plastic, FRP, wood and the like can be used, and rubber is preferable from the viewpoint of elastic modulus.
The rubber used for the fixing component 21 according to the embodiment is not particularly limited, and natural rubber, synthetic rubber, silicone rubber, or the like can be used.
The elastic modulus of the fixed component 21 can be adjusted by selecting a suitable material in accordance with an impact applied by a human during use.

The guide hole 21a of the fixed component 21 has an inner diameter through which the rod-shaped component 22 can be inserted. The guide hole 21a has a shape that allows the rod-shaped component 22 to be inserted from the upper surface to the lower surface, with the surface of the fixed component 21 in contact with the ground 4 being the lower surface.
Inside the guide hole 21a, a slidable member that can be inserted through the rod-like component 22 and that contacts the inside of the guide hole 21a may be provided. By providing the member, it becomes easy to pull out the rod-shaped component 22 from the fixed component 21, and the baseball base 1 can be easily removed.

[Bar-shaped part 22]
The thickness of the rod-shaped part 22 is preferably 3 to 50 mm, more preferably 4 to 20 mm, from the viewpoint of strength and workability when inserted into the ground.
The length of the rod-shaped component 22 is preferably 20 to 800 mm, and more preferably 250 to 400 mm, from the viewpoint of workability during insertion into the ground and ease of carrying.

The bar-shaped part 22 may be replaceable. When the rod-shaped component 22 is broken by use, the spare rod-shaped component 22 prepared in advance can be replaced and used.
Moreover, the rod-shaped component 22 may be prepared in a plurality of lengths, thicknesses, and strengths, and may be properly used depending on the state of the ground, the impact applied by the human being used, the assumed strength of the body, and the like.

  Further, by making the strength of the rod-shaped component 22 moderate, when an impact exceeding a predetermined strength is applied, the rod-shaped component 22 breaks and the baseball base moves, so that human legs and hands are not broken. It can also be done. In this case, the rod-like component 22 is provided with a portion where the strength is relatively weaker than other portions so that the human being is not injured by breaking at a desired position and having a pointed shape at the broken portion. May be. The portion in the rod-shaped component 22 may be, for example, a small diameter portion provided in the rod-shaped component. The small-diameter portion may be provided in a rounded shape, for example, so that the fracture surface at the time of breakage is not sharp.

In addition, by making the material of the rod-shaped component 22 elastic, it is possible to mitigate the impact applied by humans during use.
The shape of the rod-shaped component 22 is not particularly limited as long as one can be inserted into the ground 4 and the other can be bonded to the fixed component 21.
The shape of the rod-shaped component 22 is, for example, a ring-shaped portion larger than the guide hole 21 a at the end opposite to the end inserted into the ground 4, and the rod-shaped component 22 is completely in the guide hole 21 a of the fixed component 21. May not be buried, and may be shaped so that it can be easily pulled through the ring-shaped part.

  The material of the rod-shaped component 22 is not particularly limited as long as it has a certain strength and wear resistance, and metal, plastic, FRP, wood, rubber, or the like can be used. Moreover, you may combine these materials.

Hereinafter, although the Example of this invention is described based on FIGS. 1-4, this invention is not limited to a following example.
The baseball base 1 includes a fixture 2 and a baseball base body 3. The fixture 2 includes a fixed component 21 and a rod-shaped component 22. The fixed component 21 is provided with four guide holes 21a.

In the fixing device 2, four bar-shaped parts 22 are respectively inserted into four guide holes 21 a provided in the fixing part 21, and one of the bar-shaped parts 22 is inserted into the ground 4. By being fixed to the ground.
A portion larger than the diameter of the guide hole 21a exists at the other tip of the rod-shaped component 22 that is not on the side to be inserted into the ground, thereby preventing the rod-shaped component 22 from being buried in the fixed component.

  As shown in FIG. 2 and FIG. 3, in the baseball base 1 according to the embodiment, when the fixed component 21 is fixed to the ground 4 by the rod-shaped component 22, it passes through the tip position of the rod-shaped component 22 on the side inserted into the ground. The intersection 4a between the vertical line and the ground is located farther from the center of gravity 21b of the fixed component 21 than the region (insertion position of the rod-shaped component 22) 4b where the rod-shaped component 22 and the ground intersect.

  In the rod-shaped component 22 ′ shown in FIG. 4, a portion larger than the diameter of the guide hole 21a is a ring 22′a at the other end of the rod-shaped component 22 ′ that is not inserted into the ground, and the rod-shaped component 22 ′. It is easy to pull out. In addition, the small-diameter portion 22'b of the rod-like component 22 'is located near the ground when in use by being positioned by the ring 22'a and the guide hole 21a. That is, the small-diameter portion 22 ′ b exists at a position where the broken rod-shaped component 22 ′ does not protrude from the ground 4 or the fixed component 21 when the rod-shaped component 22 ′ is broken at the position of the small-diameter portion 22 ′ b.

  Further, in the rod-shaped component 22 ′ shown in FIG. 4, a small-diameter portion 22′b is provided as a location where the strength is relatively weaker than other portions, and from the other portion of the rod-shaped component 22 ′ toward the small-diameter portion. It has a rounded taper shape so that the diameter becomes thinner.

  The baseball base of the present invention is suitably used as a simple fixed baseball base regardless of whether it is an adult or a boy.

DESCRIPTION OF SYMBOLS 1 Baseball base 2 Fixing tool 21 Fixing part 21a Guide hole 21b Center of gravity 22 Bar-shaped part 22 'Other forms of bar-shaped part 22'a Ring 22'b Small diameter part 23 Guide hole 3 Baseball base main body 3a Cavity 4 Ground 4a Bar-shaped part 22 Intersection of the vertical line passing through the tip position on the side inserted into the ground 4 and the ground 4 4b A region where the bar-shaped part 22 and the ground 4 intersect (insertion position of the bar-shaped part 22)

Claims (3)

A baseball base comprising a fixture to be installed on the ground and a baseball base body in which a cavity for mounting on the fixture is formed,
The baseball base body is fixed to the fixture by being attached to the fixture,
The fixing device includes a fixing component that is an elastic body, and three or more rod-shaped components that penetrate the fixing component, one side is joined to the fixing component, and the other side is inserted into the ground.
The fixture is fixed to the ground by inserting the rod-like component into the ground,
The fixed component has three or more guide holes that penetrate the rod-shaped component at a constant angle, and the rod-shaped component penetrates the fixed component by being inserted through the guide hole,
When the fixed component is fixed to the ground by the rod-shaped component, the intersection of the vertical line passing through the tip position of the rod-shaped component inserted into the ground and the ground is the position of the region where the rod-shaped component and the ground intersect A baseball base characterized by being located farther from the center of gravity of the fixed component. The baseball base according to claim 1, wherein the fixed component further includes a slidable member that can be inserted through the rod-shaped component and is in contact with the inside of the guide hole. The baseball base according to claim 1 or 2, wherein the bar-shaped part is provided with a portion having a relatively weaker strength than other portions.

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