JP4392662B2 - Azuchi structure and Azuchi wall structure - Google Patents

Description

  The present invention relates to an Azuchi structure and an Azuchi wall structure that receive arrows such as Japanese bows and Western bows.

  In a Japanese archery training hall, etc., sand and earth are usually piled up in order to stand up. Azuchi, for example, fills sand or earth with a height of about 1.5 m and a horizontal size of about 10 m, and fixes it to a predetermined height of the embankment using a fixture. Is done. In recent years, tatami mats that can be used indoors instead of Azuchi are used. A substitute facility using tatami is, for example, a pipe structure in which an iron pipe or the like is assembled on the rear side of the tatami so that the tatami stands almost vertically, and the tatami is stood against the pipe structure. A target is arranged at a predetermined height on the front side. However, in conventional facilities using tatami mats, the entire facility is heavy, and much labor and time are required for transportation and installation work. Furthermore, when the arrow was received, even if only a part of the tatami was damaged, the tatami could not be used and had to be discarded, and the economy was low. In addition, since the tatami mat is relatively hard, there is a problem that the arrow released with a weak force does not bounce back and stick.

On the other hand, Patent Document 1 discloses an arrow receiving plate used as a substitute for a tatami mat. The arrow receiving plate of Patent Document 1 accommodates a holding layer made of a plate-like fiber assembly, a plate-like shielding plate provided in contact with one surface of the holding layer, a shielding plate and a holding layer in this order from the back side. A concave case with the surface side receiving the arrow open, and a coating film covering the open side of the concave case.
JP-A-8-261694

  However, in Patent Document 1, when the holding layer is damaged by receiving a large number of arrows, the holding layer and the shielding plate in the concave case can be replaced, but the holding layer and the shielding plate are in the concave case. Since it is filled without any gaps, there are few gaps for taking out the holding layer from the case when replacing it, and it is difficult to perform the detaching operation, and maintenance work including replacement work of the holding layer is complicated. Further, when taking out the holding layer in the concave case, it is necessary to remove the coating film from the concave case one by one, which is troublesome. In addition, since the arrow receiving plate is provided in a wide area to prevent danger and damage to the arrow, the arrow receiving plate is generally large, which is inconvenient for transportation, installation work, etc. .

  The present invention has been made in view of the above-described conventional problems, and one object of the present invention is to change the position between the corresponding damaged portion and an undamaged or slightly damaged portion according to the degree of damage at the location where the arrow is received Alternatively, it is an object of the present invention to provide an edge structure and an edge wall structure that can easily and smoothly replace damaged members and realize an overall operation period extension, an operation cost reduction, and the like. Another object is to provide a side structure and a side wall structure that can be easily transported and installed.

In order to solve the above-mentioned problems, the present invention is an azimuth structure having a projecting surface 16 that faces the shooter M, and is a hollow rectangular tube that faces the direction orthogonal to the projecting direction X and has openings 18 at both ends. A rectangular tube body (12) having a wall 16 as an incident surface, and is detachably fitted in the rectangular tube body (12) and closely fitted in a mounted state. It comprised a cylindrical body (12) in the arrow receiving section 14 consisting of a movable block body freely and out the slidably provided in both end openings 18, from Namie structure 10, wherein including that .

Moreover, the arrow receiving part 14 consists of a plurality of arrow receiving blocks (20, 22) that are slidably inserted into the hollow part of the rectangular tube (12) and are arranged so as to overlap with the shooting direction X. It is good as well. The arrow receiving blocks may all be the same size, or may be provided in different sizes. For example, the thickness in the shooting direction may be different.

  Moreover, an arrow receiving block is good also as consisting of several arrow receiving blocks (20, 22) which varied the degree of the receiving buffering force with respect to the arrow to be injected.

  An arrow receiving block (20) having a relatively low receiving buffering force against the arrow is inserted on the side close to the incident surface 16, and an arrow receiving block (22) having a relatively high receiving buffering force against the arrow. May be inserted on the side far from the incident surface 16. The arrow receiving block may be arranged so that the receiving buffering force gradually increases as it goes farther from the incident surface.

Moreover, a square cylinder (12) is good also as being comprised from the lightweight penetrable material which the arrow to inject can penetrate. Those having a certain degree of strength that are easy to penetrate the arrows and are not easily broken or damaged during transportation are suitable.

Moreover, the arrow receiving block (20, 22) may be formed to be at least the same size or smaller than the hollow portion of the rectangular tube (12) .

  Moreover, the arrow receiving block (20, 22) may be formed of a foam made of a plant material as a main raw material. The foam may be of any nature, for example, from sponge-like soft and elastic to relatively hard and rigid, and it can be set according to conditions such as the shooting force of the arrow and ease of removal. Good.

Further, the rectangular tube (12) may be made of paper.

  Furthermore, the present invention is arranged so that a plurality of the assembly members 10 according to any one of claims 1 to 8 are stacked in close contact with each other so as to form a wall surface on which the incident surfaces 16 are continuous. It is comprised from the side wall structure 100 characterized by being arranged side by side. The number of upper and lower steps and the number to the left and right can be arbitrarily set, and a side wall having a required width can be formed. Further, for example, if the Azuchi structure 10 is formed in a size that is easy to carry, the Azuchi wall structure 100 can be constructed by easily carrying it.

At this time, a plurality of the same size of the constellation body 10 are arranged with the side surface openings 18 aligned so that the adjacent rectangular tube (12) and the hollow portion communicate with each other, and the arrow receiving portions 14 (20, 22). ) Are preferably arranged so as to be displaced so as to straddle the hollow portions of the plurality of rectangular cylinders (12) . By unifying the Azuchi constituent body 10 and its constituent members, each member can be mass-produced and member replacement can be performed efficiently.

  According to the Azuchi structure of the present invention, it is an Azuchi structure having a projecting surface that faces the shooter, and a hollow housing that is formed in a cylindrical shape by opening opposite side ends, and either the housing or An arrow receiving portion that is detachably attached to the hollow portion of the housing through the openings on the opposite side ends and can be arbitrarily changed in arrangement with respect to the housing, and shoots any surface of the housing. Since it is arranged as a concavity surface, it can be used for a long time as a whole by changing the position of the arrow receiving part relative to the incident surface according to the degree of damage, or by appropriately changing the components. Can be reduced. In particular, by simply sliding the housing, it can be changed to a position where the arrow receiving part is hardly damaged in accordance with a predetermined position, or the member can be replaced smoothly. Maintenance is easy. Furthermore, it can be easily installed and used at a predetermined position. In addition, the structure is simple and can be manufactured at low cost.

  In addition, the arrow receiving portion is configured to include a plurality of arrow receiving blocks that are slidably inserted into the hollow portion of the housing and are arranged so as to overlap with each other in the incident direction. Depending on the depth of the shooting direction of the different arrow receiving portions, each portion can be exchanged and can be operated more economically.

  In addition, the arrow receiving block is composed of a plurality of arrow receiving blocks having different degrees of the receiving buffering force with respect to the shot arrow, for example, the arrow receiving force, the ease of sticking of the arrow, and the ease of removal In addition, the arrow receiving portion can be set according to various conditions such as ease of damage or the like, and the practicality can be improved.

  In addition, an arrow receiving block having a relatively low receiving buffering force against the arrow is inserted on the side close to the incident surface, and an arrow receiving block having a relatively high receiving buffering force on the arrow is on the side far from the incident surface. By adopting a configuration that is inserted into the head, the arrow can be received by the arrow receiving portion regardless of the strength of the arrow to be fired, which is safe and highly practical.

  Moreover, since the housing is made of a lightweight penetrable material that can be penetrated by the arrow to be projected, the housing can be reliably received by the arrow receiving portion by penetrating the arrow. In addition, it is lightweight and can be easily transported and installed.

  In addition, the arrow receiving block is configured to be at least the same size or smaller than the hollow portion of the housing, so that the arrow receiving block is accommodated in the housing and is not bulky in a compact state. It can be transported and stored efficiently.

  In addition, the arrow receiving block is made of a foam made of plant material as a main raw material, so that it can be manufactured as a light overall, and can be transported and installed in a low labor and in a short time. Can do. Furthermore, since the generation of toxic gases is small even during incineration and it is difficult to adversely affect the environment, it can be easily disposed of as general waste after use.

  Moreover, the housing | casing is set as the structure made from paper, The structure which can penetrate an arrow can be manufactured at low cost. Moreover, it can be easily disposed of as general waste after use.

  Moreover, according to the side wall structure of the present invention, a wall surface having a continuous incident surface while stacking a plurality of the side structure members according to any one of claims 1 to 8 in close contact with each other. Since it is arranged side by side vertically and horizontally, it is possible to easily construct an area with an area corresponding to the number of people who draw a bow. In particular, the present invention can be effectively applied when a large area that can be used simultaneously by a large number of people is required.

  In addition, a plurality of the same-sized assembly members are arranged with the openings on both sides aligned so that the adjacent housings communicate with the hollow portions, and each of the arrow receiving blocks straddles the hollow portions of the plurality of housings. In this way, the components are arranged in a misaligned state to form an integrated structure in which the components are connected to each other, and are displaced from each other when receiving an arrow or pulling out a stuck arrow. It is difficult to prevent gaps from occurring. In addition, the position of the arrow receiving block can be freely changed in an arbitrary width such as several mm to several tens of cm, and it can be expected that the arrow receiving block is used while holding the receiving buffering force in a good state. Moreover, it is a simple and low-cost structure, and can connect a structure. Also, construction and removal work can be done in a short time with low labor.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Azuchi structures and azushi wall structures of the present invention will be described below with reference to the accompanying drawings. The Azuchi structure and the Azuchi wall structure of the present invention are suitably used as a substitute for Azuchi, which accepts arrows such as Japanese bows and Western bows.

  FIG. 1 to FIG. 3 show the structures of this embodiment. In this embodiment, the Azuchi structure 10 includes a cylindrical housing 12 and an arrow receiving portion 14 that is detachably attached to a hollow portion of the housing 12.

As shown in FIGS. 1, 2, and 3, the housing 12 is a hollow rectangular tube body that is formed in a rectangular tube shape with openings 18 at opposite opposite ends. In the present embodiment, the housing 12 is provided in a rectangular tube shape having both opposite ends opened by four side walls integrally formed in a substantially square cross section so as to form a hollow portion therein. In this embodiment, the four side walls forming the casing 12 are each provided in a substantially square shape, and the outer shape of the casing 12 is a substantially cubic shape. The housing 12 is formed of a light-penetrating material such as a corrugated cardboard that can be penetrated by an arrow to be projected. In the present embodiment, the housing 12 is arranged on a plane with the outer surface of one of the side walls as an installation surface, and the outer surface of one of the opposing side walls standing upright from the installation surface is a shooter M. The incident surfaces 16 are arranged so as to face each other. The casing 12 has a front direction in which a direction penetrating the incident surface 16 is defined as an incident direction X and both openings 18 are directed in the left-right direction with respect to the shooter, and a rear wall facing the front wall. A wall, and a lower wall and an upper wall facing each other in the vertical direction. The casing 12 may be provided with an identification display on one side wall that becomes the entrance surface 16. Further, any side wall may be used as the incident surface.

  In this embodiment, as shown in FIGS. 1, 2, and 3, the arrow receiving portion 14 has a certain thickness in the shooting direction, and is a portion that receives the incoming arrow and receives it with a buffering force. Yes, it is detachably attached to the hollow portion of the housing 12 through the opening 18 of the housing. The arrow receiving portion 14 can be arbitrarily changed in the arrangement with respect to the housing 12 and can be easily slidably arranged at a predetermined position corresponding to the incident surface 16 of the housing 12. Thereby, for example, the damaged portion and the undamaged portion of the arrow receiving portion with respect to the incident surface of the housing can be used for a long time by freely changing the position. In this embodiment, the arrow receiving part 14 is slidably fitted into the substantially cubic hollow part of the housing through the opening 18 and is arranged so as to overlap with the shooting direction X. It consists of two arrow receiving blocks 20 and 22. The front arrow receiving block 20 and the rear arrow receiving block 22 are formed of a three-dimensional rectangular box-shaped block having a size equal to that obtained by dividing the hollow space of the housing 12 into approximately two equal parts in the front-rear direction (injection direction). ing. The front arrow receiving block 20 and the rear arrow receiving block 22 have substantially the same length in the communication direction and the height in the communication direction of the hollow portion of the casing, and approximately half the length in the shooting direction of the hollow portion of the casing. It consists of a solid rectangular block of length and is mounted in a face-to-face state in the hollow portion of the housing 12. That is, the front arrow receiving block 20 and the rear arrow receiving block 22 have a cross-sectional shape that is substantially the same size as the hollow portion of the casing 12 in a plane intersecting the incident direction X, and are fitted in the casing 12. It is set so that it can be completely stored. Each of the arrow receiving blocks 20 and 22 can be independently changed in position by sliding movement with respect to the housing 12. When the portion corresponding to the target position of the arrow receiving block has been damaged by receiving an arrow, the arrow receiving block is slid toward one of the openings so that the undamaged portion is located at the position corresponding to the target 24. It can also be set and used so that it is arranged. Moreover, the arrow receiving blocks 20 and 22 can be attached and detached through the opening 18 of the housing, and the arrow receiving blocks can be exchanged separately. In this way, it is possible to simply change the position of the arrow receiving portion and replace the member and use it for a long time, and it can be economically operated. In addition, in this embodiment, although the arrow receiving part 14 is provided from two arrow receiving blocks, you may be comprised from three or more arrow receiving blocks.

  In the present embodiment, the front arrow receiving block 20 and the rear arrow receiving block 22 are provided with different degrees of receiving buffering force with respect to the shot arrow. Specifically, as the front arrow receiving block 20 on the side close to the incident surface 16 of the hollow portion of the casing, a low resistance arrow receiving block with a relatively low receiving buffering force against the arrow is inserted, and the casing As the rear arrow receiving block 22 on the side far from the incident surface 16 of the 12 hollow portions, a high resistance arrow receiving block having a relatively high receiving buffering force against the arrow is inserted. By arranging the front arrow receiving block 20 on the side close to the shooting surface 16, for example, even a relatively weak arrow shot by a child, a woman, or the like can be stuck into the arrow receiving portion without rebounding and received. it can. On the other hand, by arranging the rear arrow receiving block 22 on the far side of the incident surface, for example, even in the case of an arrow with a relatively strong power that is shot by an adult male or the like, the arrow is received in the arrow receiving portion and the arrow is arranged. It is possible to prevent the body from penetrating. That is, regardless of the strength of the arrow to be shot, the arrow receiver 14 can receive the arrow, and a safe and easy-to-use Azuchi structure can be realized.

  In this embodiment, the arrow receiving blocks 20 and 22 are made of, for example, a vegetable material such as corn starch (corn starch) as a main raw material, mixed with a resin such as polypropylene or a biodegradable resin, and foamed with water vapor. It consists of the foam formed. In the present embodiment, the arrow receiving blocks 20 and 22 are provided by, for example, forming a plurality of foams in a plate shape in close contact with the corrugated cardboard box provided in the three-dimensional rectangular shape. ing. By forming the arrow receiving blocks 20 and 22 from a foam, the arrow can be received and the arrow can be easily pulled out. Moreover, the arrow receiving blocks 20 and 22 and the whole Azuchi structure 10 become light weight, and transportation, installation work, etc. can be performed with low labor and in a short time. In addition, the arrow receiving blocks 20 and 22 may be, for example, a cardboard box or the like in which a plate-like, rose-like or block-like foam is accommodated, and is constituted by a foam formed in a single block shape. But you can. In the present embodiment, the front arrow receiving block 20 is made of, for example, a foam having a relatively high foaming rate and easy to pierce the arrow, and the rear arrow receiving block 22 is a foam having relatively few bubbles and hard to penetrate the arrow. Consists of the body. When the arrow receiving blocks 20 and 22 are provided with a foam made of a vegetable material as a main material, the generation of toxic gas at the time of incineration is higher than that of polystyrene foam when the arrow is received and damaged after incineration. Good for the environment. Also, when receiving an arrow, it melts with the heat of friction when the arrow pierces like styrofoam, and it hardly clings to the arrow and hardens, so that the arrow does not come out or foreign substances adhere to the arrow. The effect that can be prevented can be expected.

  In the present embodiment, the Azuchi structure 10 is generally provided in a substantially cubic shape, for example, and can be self-supporting on a flat placement surface and has a shape that does not easily fall when it receives an arrow. Is provided. Therefore, in this embodiment, a supporting means for separately supporting the Azuchi structure is not required, and can be easily installed and used. In addition, it is good also as arrange | positioning nonwoven fabrics (not shown), such as a kenaf for the penetration prevention of an arrow, in the hollow part side or outer surface side of the side wall of the housing | casing in the back direction.

Next, the side wall structure will be described with reference to FIGS. 4 to 6. As shown in FIGS. 4 and 5, in this embodiment, the side wall structure 100 has a plurality of the side structure bodies 10 shown in FIGS. 1 to 3 stacked in close contact with each other. However, it is arranged side by side vertically and horizontally so as to form a continuous wall surface. In this embodiment, the side wall structure 100 is provided with, for example, a plurality of side-by-side structures 10 having a substantially cubic shape with sides of about 50 cm and having the same size. The side wall structure 100 is arranged with the side surface openings 18 aligned so that the plurality of side structures 10 communicate with the adjacent casing 12 and the hollow portion, and each of the arrow receiving blocks 20 and 22 is arranged. Are arranged in a state of being displaced so as to straddle the hollow portions of the plurality of housings 12 . The arrow receiving blocks 20 and 22 are arranged in close contact with the adjacent left and right arrow receiving blocks. In the present embodiment, the arrow receiving blocks 20 and 22 serve as connecting means to connect the constituent members of the head and prevent the head constituent members from being displaced and receiving a gap when receiving the arrow or pulling out the arrow. it can. Further, in the present embodiment, the adjacent contact position Y1 of the arrow receiving block 20 and the adjacent contact position Y2 of the arrow receiving block 22 are set to positions shifted in the horizontal direction with respect to the shooting direction X. . That is, the rear arrow receiving block 22 main body is set on the rear side of the contact position Y1 of the front arrow receiving block 20. Thereby, even if an arrow enters the position of the joint between the front arrow receiving blocks, the arrow can be received. The lateral length of the wall structure 100 can be arbitrarily set, for example, from several meters to several tens of meters, and can be constructed to have an arbitrary size according to the number of players. . On the other hand, in the vertical stacking of the Azuchi constituents, the upper Azish constituents are placed on the lower Azish constituents 10 using the flat surfaces provided at the top and bottom of the casing. It is stacked only by letting. In the present embodiment, the wall structure 100 is stacked in, for example, upper and lower three stages, and is provided with a height of about 1.5 m. In this embodiment, the other constituent devices are not provided with other supporting devices, and are provided side by side in the upper, lower, left, and right directions.For example, the constituent members may be any fixing means such as scouring. It is good also as connecting and fixing.

  Furthermore, in this embodiment, as shown in FIG. 4, the continuous incident surface 16 on the front side of the constructed wall structure 100 has a height of about 28 cm from the floor surface, for example. The target 24 is arranged and fixed via a target skewer or the like. For example, a plurality of targets 24 are arranged at intervals of 1.5 to 1.8 m in the horizontal direction. The target 24 is not necessarily arranged at the center position on the left and right of the entrance surface 16 of the front wall that is formed by the single structure 10, but the front arrow receiving block 20 is free with respect to the housing. Are arranged in close contact with each other, so that the arrow can be received well at any position. If the surrounding area of the target 24 is concentrated and receives an arrow as the wall structure receives a large number of arrows, the arrow receiving block 20 is slid relative to the housing 12, for example. Thus, it is possible to continue to use while changing the part that is hardly damaged to the position corresponding to the target 24 position. In particular, the arrow receiving block can be used while freely changing its position in an arbitrary width such as several mm, several centimeters, or several tens of centimeters. As shown in FIG. 6, for example, a black polyethylene foam sheet 26 may be installed on the incident surface 16 side so that the target can be easily seen.

  When constructing the wall structure according to the present embodiment, first, a plurality of wall structures 10 having the same size are prepared. For example, the arrow receiving blocks 20 and 22 are formed in the hollow portion of the housing 12. Carry it to a predetermined place with the container stored. For example, those structures 10 are placed on the floor surface F, the arrow receiving blocks 20 and 22 are slid with respect to the casing 12, and part of the arrow receiving blocks 20 and 22 is transferred to the casing 12. It projects from either end opening 18 sideways. The projecting portions of the arrow receiving blocks 20 and 22 of other structures are inserted into the space of the hollow portion of the housing 12 formed by sliding the arrow receiving blocks 20 and 22, and the arrow receiving block is 2 They are arranged so as to straddle the hollow portions of the two casings, and are connected. By repeating these steps, the horizontal components are arranged side by side in the horizontal direction, and the vertical components are stacked in the vertical direction to construct a wide wall surface. A target 24 is attached to the incident surface 16 side at a predetermined height. As a result, it can be easily constructed regardless of indoor or outdoor location. On the other hand, after use, it is broken down into constituents in the reverse order of the above. Each assembly is removed in a compact state by sliding the arrow receiving block protruding from the opening of the housing into the hollow portion of the housing. Depending on the degree of damage, constituent members such as the arrow receiving block can be appropriately replaced and used for a long time as a whole, and the operation cost is low.

  The side structure and the side wall structure of the present invention described above are not limited to the structure of the above-described embodiment alone, and are within the scope not departing from the essence of the present invention described in the claims. Any modification may be made.

  The Azuchi structure and Azuchi wall structure of the present invention are installed at predetermined positions such as indoors and outdoors such as gymnasiums, and are suitable for practicing bows such as Japanese bows and Western bows or for competition purposes. Can be applied.

It is a perspective view of an Azuchi structure concerning an embodiment of the present invention. It is a longitudinal cross-sectional view of the structure of FIG. It is action | operation explanatory drawing of the cross section of the Azuchi structure of FIG. It is a front view of the side wall structure concerning this embodiment. FIG. 5 is a partially enlarged view of a cross section taken along line AA in FIG. 4. It is use condition explanatory drawing of an Azuchi wall structure.

DESCRIPTION OF SYMBOLS 10 Azuchi structure 12 Housing | casing 14 Arrow receiving part 16 Incident surface 18 Opening 20 Front arrow receiving block 22 Rear arrow receiving block 100 Azuchi wall structure X Injection direction

Claims (10)

Azuchi structure having a plane of incidence facing the archer,
It is a hollow rectangular cylinder that is opposed to the direction perpendicular to the incident direction and is open at both ends, and a rectangular cylinder that has any wall as the incident surface,
An arrow receiving portion comprising a block body that is detachably attached to the rectangular tube body and is closely fitted in the mounted state, and further slidably provided in the rectangular tube body and movable freely in the opening at both ends . Namie structure, characterized in including things. The arrow receiving part according to claim 1, wherein the arrow receiving part is composed of a plurality of arrow receiving blocks which are slidably inserted into the hollow part of the rectangular tube body and are arranged so as to overlap with each other in the incident direction.   The arrow receiving block according to claim 2, wherein the arrow receiving block includes a plurality of arrow receiving blocks having different degrees of receiving buffering force with respect to an arrow to be shot.   An arrow receiving block with a relatively low receiving buffering force against the arrow is inserted on the side close to the incident surface, and an arrow receiving block with a relatively high receiving buffering force against the arrow is inserted on the side far from the incident surface. The Azuchi structure according to claim 3, wherein: The square cylinder body is comprised from the lightweight penetrable material which the arrow to inject can penetrate, The constellation structure in any one of Claim 1 thru | or 4 characterized by the above-mentioned. The arrow receiving block according to any one of claims 2 to 5, wherein the arrow receiving block is formed to be at least the same size as or smaller than the hollow portion of the rectangular tube body.   The arrowhead block according to any one of claims 2 to 6, wherein the arrow receiving block is formed of a foam made mainly of plant material. The square structure according to any one of claims 1 to 7, wherein the rectangular cylinder is made of paper.   A plurality of the Azuchi structures according to any one of claims 1 to 8 are arranged side by side vertically and horizontally so as to form a wall surface on which the incident surfaces are continuous while being stacked in close contact with each other. Azuchi wall structure. A plurality of constellation bodies of the same size are arranged with the openings on both sides aligned so that the adjacent rectangular tube and the hollow portion communicate with each other,
10. The wall structure according to claim 9, wherein each of the arrow receiving portions is disposed in a state of being displaced so as to straddle the hollow portions of the plurality of rectangular cylindrical bodies.

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