JP6232513B1 - Bouldering tower and bouldering unit - Google Patents

Abstract

The present invention provides a bouldering unit and a bouldering tower that are easy to transport and install, and that can freely change the arrangement pattern of the hold. A bouldering tower (1) has a substantially cylindrical shape and is composed of a plurality of bouldering units (2) stacked in a vertical direction in a state where the central axes coincide with each other. A plurality of holds 3 serving as gripping hands are attached, and a thin belt-like string-like body 4 called a slack line is attached via an eyebolt 5. [Selection] Figure 1

Description

  The present invention relates to a bouldering unit used for bouldering and a bouldering tower using the bouldering unit, and in particular, a bouldering unit that is easy to carry and install and that can freely change the arrangement pattern of the hold. And about the bouldering tower.

Free-climbing is a sport that climbs a rock wall using only the minimum equipment for ensuring safety. Among them, only the hands and feet of a wall with a height of 5 m or less are used without using a rope. Bouldering that climbs using it is especially attracting attention.
Since bouldering does not require special tools, anyone can do it relatively easily. Recently, many facilities have been built with artificial walls imitating natural rock walls so that you can enjoy bouldering indoors.

Various devices and structures used for bouldering have been proposed in the past.
For example, Patent Document 1 discloses an invention relating to an artificial structure used for bouldering under the name “artificial wall”.
The “artificial wall” according to the present invention has a structure in which the first wall surface component and the second wall surface component that are joined to each side edge at a predetermined angle are assembled as a unit section. ing.
According to such a structure, it is possible to manufacture at a low cost, and it is possible to increase the size of the hold and the number of mountable pieces.

Patent Document 2 discloses a device related to a structure constituted by a plywood plate having a plurality of protrusion-shaped holds installed on the surface under the name of “artificial wall for free climbing”.
In this device, a panel made of plywood has a curved surface curved in an arbitrary direction, and a plurality of holds are installed on the surface.
According to such a structure, in addition to low manufacturing cost, there is an advantage that the shape can be easily changed by replacing the attached panel with another panel having a different shape.

Further, Patent Document 3 discloses a device related to a rock climbing device that can be installed without using an existing structure such as a wall or a support frame under the name of “assembled rock climbing device”.
The device includes at least one surface and at least one connection surface connected to the surface, and includes a plurality of assembly blocks having grips attached to the surface, and the assembly block combines the connection surfaces. It is characterized by having been comprised.
According to such a structure, an existing structure such as a wall or a support frame is not required, and there is no restriction on the installation location. And since this invention is easy to couple | bond and isolate | separate, a large storage space is not required and conveyance is easy.

JP 2007-222202 A Utility Model Registration No. 3156846 Utility Model Registration No. 3157513

  In the invention disclosed in Patent Document 1 which is the above-described prior art, in order to change the arrangement pattern of the hold, the bolt must be loosened to remove the hold from the first wall surface component or the second wall surface component, There was a problem that it was not easy to change the arrangement pattern of the hold. Moreover, since the first wall surface component and the second wall surface component cannot be installed alone, there is a problem that there are many restrictions on the installation location.

  In the device disclosed in Patent Document 2, when installing a panel, a plurality of scaffold pipes assembled in a lattice shape is necessary, and thus there is a problem that it takes time to install and remove. Moreover, since it is necessary to replace the panel itself in order to change the arrangement pattern of the hold, there is a problem that the efficiency is low.

  Furthermore, although the device disclosed in Patent Document 3 can change the arrangement pattern of the hold by changing the arrangement of the assembly blocks, there is a problem that variations in the arrangement pattern of the hold are scarce. Moreover, when there are many assembly blocks, since connection and isolation | separation take much time, the subject that the work efficiency at the time of installation or removal was bad occurred.

  The present invention has been made in response to such a conventional situation, and is a bouldering unit and a bouldering that can be easily changed in the arrangement pattern of the hold and can be easily transported and installed. The purpose is to provide a tower.

In order to achieve the above object, a bouldering unit according to a first aspect of the present invention is characterized by comprising a cylindrical body formed of a fiber reinforced resin and having a plurality of holds attached to the outer surface of the side plate.
The bouldering unit having such a structure has an effect that the arrangement pattern of the hold is changed by installing the bouldering unit by rotating in a horizontal plane or by installing it upside down. And since it is a lightweight and simple structure called a cylinder formed of fiber reinforced resin, the manufacturing cost is low, and operations such as transportation, installation or removal are easy.

The second invention is characterized in that, in the first invention, instead of the fiber reinforced resin, it is made of metal or wood.
In addition to having the effect of the first invention, the bouldering unit having such a structure has an advantage that the material cost is reduced depending on the size.

According to a third invention, in the first invention or the second invention, a nut with a plate is installed on the side plate with the female screw portion exposed to the outside.
In the bouldering unit having such a structure, in addition to the action of the first invention or the second invention, the plate-attached nut does not protrude to the outer surface, so that the aesthetics are not impaired even in places where the hold is not attached, and It also has the effect of not interfering with bouldering.

According to a fourth invention, in any one of the first to third inventions, the side plate includes a pair of flanges provided to face both ends of the side plate, and the side plate has a circular cross-sectional outline. The flange is provided with a plurality of bolt holes at equal intervals in the circumferential direction.
In the bouldering unit having such a structure, in addition to the operation of any of the first to third inventions, a bouldering tower having a desired height can be easily constructed by stacking a plurality of units. . At this time, the arrangement pattern of the hold is changed by changing the order of stacking the bouldering units. Furthermore, since the worker can perform the work of bolting the flanges of the upper and lower bouldering units inside the bouldering unit, the workability is good.

According to a fifth aspect, in the fourth aspect, the outline of the cross section of the side plate is a regular polygon instead of a circle, and the flange has a regular polygon when viewed in plan. It is characterized by.
When the outline of the cross section of the side plate forms a regular polygon, the side plate has a flat outer surface. Therefore, when the bouldering unit is made of fiber reinforced resin, a plate nut is parallel to the flat outer surface. If it is embedded in the side plate, it is possible to completely embed the nut with the plate in the side plate even if the side plate is thinner than when the outline of the cross section of the side plate is circular. Further, when the bouldering unit is made of metal or wood, the side plate can be screwed from the inside, so that the side plate can be made thinner than when the plate-equipped nut is embedded.
That is, in the bouldering unit having the above structure, since the thickness of the side plate can be reduced, in addition to the action of the fourth invention, the manufacturing cost is low and the first work such as transportation, installation or removal is easy. The effect of the present invention is further exhibited.
Further, when the outline of the cross-section of the side plate is circular, a gap is generated between the side plate and the hold unless the shape of the contact surface of the hold with the side plate matches the shape of the outer surface of the side plate. Therefore, if the size of the bouldering unit is changed, it is necessary to recreate the hold. On the other hand, in the bouldering unit having the above structure, the abutment surface of the hold with respect to the side plate may be flat, so that the same hold can be used in common for bouldering units of different sizes. Therefore, the bouldering unit of the present invention is excellent in versatility.

A sixth invention is the fourth invention or the fifth invention, wherein the cylindrical reinforcing member shorter than the length of the side plate and a plurality of reinforcing members arranged in a straight line are fixed to the flange in a state where they are connected to each other. A plurality of bolt holes, the plurality of bolt holes being provided in pairs with respect to the pair of flanges so that their central axes coincide with each other, and the reinforcing member communicating with the plurality of pairs of bolt holes In this state, it is installed between a pair of flanges.
When the bouldering unit is lifted by a crane or the like, a tensile load is applied to the side plate if the hanging bracket is attached to the upper part of the bouldering unit. On the other hand, when the hanging metal fitting is attached to the lower part of the bouldering unit, a compressive load is applied to the side plate. On the other hand, if it is the said structure, those loads will be disperse | distributed to a side plate and a reinforcement member. That is, in the bouldering unit having the above structure, in addition to the action of the fourth invention or the fifth invention, the force applied to the side plate is eased by the reinforcing member when lifting with a crane or the like, so that the side plate is hardly damaged. Has an effect.

A seventh invention is characterized in that, in the fourth invention or the fifth invention, the side plate is provided with a recess so that the bolt hole is exposed from the outer surface.
In the bouldering unit having such a structure, when the plurality of bouldering units are stacked and the upper and lower bouldering units are connected by bolts in addition to the effects of the fourth invention or the fifth invention, the diameter of the bouldering unit is reduced. Even when there is a situation such as a worker being unable to enter because the inside is narrow, the bolting operation can be performed from the outside of the bouldering unit, so that the workability is good.

In an eighth aspect based on the first aspect or the second aspect, the side plate has a fan-shaped cross section, and the cylinder is closed at one end and closed at the other end by a lid. It is characterized by being.
In the bouldering unit having such a structure, in addition to the effects of the first invention or the second invention, at least one of two planes each including two radii constituting a fan shape and parallel to the central axis direction is provided. Is brought into contact with a flat surface of an existing structure or the like, whereby the installation state of the structure is stabilized.

  In addition, a fixing member having two flat surfaces formed so as to be capable of simultaneously contacting the two flat surfaces is installed on a wall surface of an existing structure or the like with the two flat surfaces protruding. In this case, the bouldering unit of the present invention can be attached to the wall surface via the fixing member by connecting the flat surface of the bouldering unit and the flat surface of the fixing member using bolts or the like. At that time, the bouldering unit of the present invention is excellent in workability because the bolt can be operated so that the end on the side where the lid is installed is opened and a hand is inserted from the end. .

In a ninth aspect based on the fifth aspect, the side plate is formed by a plurality of pairs of plate members having a triangular shape in plan view, and the pair of flanges includes a first flange and a second flange having different sizes. In the plate material, the outline in plan view connects one side of the regular polygon constituting one outline of the first flange and the second flange and the apex of the regular polygon constituting the other outline. Thus, it is formed.
When a bouldering tower is constructed by stacking multiple bouldering units with such a structure in the vertical direction, the area of the horizontal cross-section increases and decreases continuously along the vertical direction. Has the effect that is repeatedly formed. Further, the bouldering unit of the present invention has a triangular shape that is the same as that of the plate material in plan view, and a plurality of pairs of plate materials in which flange pieces constituting a part of the flange are erected on one side of the triangle are mutually connected. It has the effect of being easily formed by bonding.

A bouldering tower according to a tenth aspect of the invention is characterized in that the bouldering unit according to any one of the first to ninth aspects is formed so as to be stacked in a plurality of stages in the vertical direction. .
Since the bouldering tower having such a structure is constructed using a plurality of bouldering units having a light and simple structure, the bouldering tower is easy to manufacture and can be easily transported, installed, or removed. . In addition, the arrangement pattern of the hold on the outer peripheral surface is changed by rotating some bouldering units in a horizontal plane, installing them upside down, or changing the stacking order.

  As described above, according to the first invention, operations such as transportation, installation, or removal can be performed efficiently. Further, when changing the arrangement pattern of the hold, if the mounting and removing of the hold are repeated many times, the bolt hole through which the bolt for fixing the hold is inserted is likely to be damaged. Since the arrangement pattern of the hold can be changed without attaching or removing the hold, there is no possibility that the bolt hole of the hold is damaged. Since the hold arrangement pattern can be easily changed, the operation can be performed efficiently.

  According to the second invention, in addition to the effect of the first invention, there is an effect that it is possible to reduce the manufacturing cost of the bouldering unit.

  According to the third invention, in addition to the effects of the first invention or the second invention, there is an effect that the hold can be installed in a state where the bouldering is not hindered.

  According to the fourth invention, in addition to the effects of any one of the first to third inventions, it is easy to connect a plurality of stacked bouldering units, so a bouldering tower can be constructed at low cost. There is an effect. In addition, since the hold arrangement pattern is changed by changing the order in which the bouldering units are stacked, the effect that the hold arrangement pattern can be changed efficiently is further exhibited.

  According to the fifth invention, since the bouldering unit is inexpensive and excellent in versatility, the effect of the fourth invention that the bouldering tower can be constructed at low cost is further exhibited.

  According to the sixth invention, in addition to the effects of the fourth invention or the fifth invention, there is an effect that the safety when the bouldering unit is stacked using a crane or the like is improved.

  According to the seventh invention, in addition to the effects of the fourth invention or the fifth invention, the bouldering tower can be efficiently constructed even when the bouldering unit has a small diameter and the inside is narrow so that workers cannot enter. There is an effect.

  According to the eighth invention, in addition to the effects of the first invention or the second invention, at least one of two planes each including two radii constituting a fan shape and parallel to the central axis direction is provided. By contacting the flat surface of the structure or the like and connecting the flat surface to the flat surface, there is an effect that the structure can be easily installed.

  According to the ninth invention, in addition to the effects of the fifth invention, a bouldering tower having a very varied shape having unique undulations in which places where overhangs are regularly formed on the outer peripheral surface can be easily obtained. There is an effect that it can be constructed.

  According to the tenth invention, since the bouldering unit according to any one of the first to ninth inventions is formed so as to be stacked in a plurality of stages in parallel with the vertical direction, the existing structure It can be easily installed even in places where there is no such thing.

It is an external appearance perspective view of Example 1 of the bouldering tower which concerns on embodiment of this invention. (A) And (b) is the external appearance perspective view of the bouldering unit and plate nut which comprise the bouldering tower of Example 1, respectively, (c) is sectional drawing of the side plate of the bouldering unit shown to the same figure (a). FIG. 6D is a view showing a modification of the method for attaching the nut with plate to the side plate of the bouldering unit in FIG. (A) And (b) is sectional drawing at the time of cut | disconnecting the bouldering unit 2 in the perpendicular plane which passes along a central axis, (c) thru | or (f) are the reinforcement members shown in the same figure (b), and two types, respectively. It is an external appearance perspective view of this connection tool and a spacer. It is the flowchart which showed the procedure which builds the bouldering tower of Example 1. FIG. (A) And (b) is the figure which represented typically the process in which the bouldering unit shown to Fig.2 (a) is piled up. (A) And (b) is the figure which represented typically the process in which the bouldering unit shown to Fig.2 (a) is piled up. (A) is an external appearance perspective view of the bouldering unit which comprises Example 2 of the bouldering tower which concerns on embodiment of this invention, (b) is an external perspective view of the planter installed in the bouldering unit, ( (c) is an external perspective view showing a state in which two bouldering units shown in (a) of FIG. 4 are stacked, and (d) is a cross-sectional view taken along line AA in FIG. (c). It is an external appearance perspective view of the bouldering tower of Example 2. FIG. (A) And (b) is an external appearance perspective view of Example 3 of the bouldering unit according to the embodiment of the present invention. (A) And (b) is the external appearance perspective view which showed the modification of the bouldering unit of Example 3, (c) is the external appearance perspective view of a fixing member. (A) And (b) is the figure which showed a mode that the modification of the bouldering unit of Example 3 was attached to the fixing member of FIG.10 (c). (A) And (b) is the external appearance perspective view and top view of the bouldering unit which comprises Example 4 of the bouldering tower which concerns on embodiment of this invention, respectively (c) And (d) is a bouldering unit, respectively. It is the top view and side view of a side plate which constitutes, and (e) is a BB line arrow sectional view of the figure (c). It is an external appearance perspective view of the bouldering tower of Example 4. FIG.

  The structure of the bouldering tower and bouldering unit of the present invention, and the operation and effect thereof will be described with reference to FIGS. In these drawings, for the hold, bolt, nut, bolt hole, etc., in order to avoid complication of the drawing, only the representative ones are denoted, and the other symbols are not illustrated. Omitted.

  FIG. 1 is a perspective view showing an example of the external appearance of the bouldering tower of the present invention, and FIG. 2A is a perspective view showing an example of the external appearance of the bouldering unit constituting the bouldering tower. b) is a perspective view showing an example of the appearance of a nut with a plate used when a hold is attached to a bouldering unit. FIG. 2C is a cross-sectional view showing the internal structure of the side plate of the bouldering unit to which the nut with plate is attached, and shows a state where the side plate is cut along a vertical plane passing through the central axis of the bouldering unit. Furthermore, FIG.2 (d) is the figure which showed the modification of the attachment method of the nut with a board with respect to the side plate of a bouldering unit in FIG.2 (c).

As shown in FIG. 1, the bouldering tower 1 has a substantially cylindrical shape and is composed of a plurality of bouldering units 2 stacked in the vertical direction in a state where the central axes coincide with each other. A plurality of holds 3 serving as gripping hands are attached to the belt, and a thin belt-like string-like body 4 which is called a slack line and is used for a tightrope is attached via an eyebolt 5.
As shown in FIGS. 2A to 2C, the bouldering unit 2 includes a pair of side plates 2a whose outer shape in cross section forms a regular 24-sided shape and both ends of the side plates 2a facing inward. The flanges 2b and 2b are formed of a fiber reinforced resin, and a plurality of nuts 6 with a plate are embedded in the side plate 2a with the female screw portions 6a exposed to the outside. In 2b and 2b, 12 pairs of bolt holes 7a and 7a are provided at substantially equal intervals in the circumferential direction in a state in which the center axes thereof coincide with each other.

As shown in FIG. 2 (c), the hold 3 has a bolt hole 3a and is fixed to the plate-equipped nut 6 (see FIG. 2 (b)) using a bolt 3b that is screwed into the female screw portion 6a. ing. Further, the eyebolt 5 shown in FIG. 1 is formed so as to be able to be screwed into the female screw portion 6 a, and the string-like body 4 (see FIG. 1) is fixed to the plate-equipped nut 6 using this eyebolt 5. .
The nut 6 with a plate is screwed to the side plate 2a from the inside of the bouldering unit 2 using screws 31 as shown in FIG. 2 (d) instead of being embedded in the side plate 2a of the bouldering unit 2. It may be. In this case, there is an advantage that the thickness of the side plate 2a can be reduced as compared with the case where the nut 6 with a plate is embedded. Moreover, it is also possible to form the side plate 2a using a metal such as aluminum or iron or wood instead of the fiber reinforced resin. That is, in this embodiment, the bouldering unit 2 is made of fiber reinforced resin, but the bouldering unit 2 may be made of metal or wood.
Depending on the size of the bouldering unit 2, the material cost may be lower when it is made of metal or wood than when it is made of fiber reinforced resin. Therefore, according to the above structure, the manufacturing cost of the bouldering unit 2 can be reduced.

Furthermore, in this embodiment, as shown in FIG. 1, the bouldering unit 2 whose upper part is closed is used as the uppermost stage of the bouldering tower 1, but the bouldering tower 1 is not limited to such a structure. Absent. That is, the bouldering tower 1 may have a structure in which the bouldering unit 2 whose upper part is not blocked is used as the uppermost stage.
Although not shown in FIG. 1, when the bouldering tower 1 is high and there is a structure around it, the bouldering tower 1 is used for the purpose of stabilizing the installation state of the bouldering tower 1. It can also be stretched between the structure. In that case, if the eyebolt 5 and the nut 6 with a board are utilized, the end of a rope etc. can be reliably connected with the outer peripheral surface 1a of the bouldering tower 1 in a short time.

3A and 3B are cross-sectional views when the bouldering unit 2 is cut along a vertical plane passing through the central axis. 3 (c) to 3 (f) are external perspective views of the reinforcing member 8, the couplers 29a and 29b, and the spacer 29c shown in FIG. 3 (b), respectively. 3A and 3B, the appearance of the bolts 7b, nuts 7c, and spacers 30 is displayed in order to avoid complicated illustrations.
As shown in FIG. 3 (a), the two bouldering units 2 and 2 are connected to each other using a bolt 7b and a nut 7c inserted through a bolt hole 7a (see FIG. 2 (a)) of the flange 2b. Yes.

As shown in FIGS. 3B and 3C, the reinforcing member 8 is a metal cylindrical body having a length shorter than that of the side plate 2a and having an internal thread portion 8a formed therein, and a bouldering unit. The structure can be installed between the two flanges 2b, 2b.
The coupling tools 29a and 29b are stepped bars in which male thread portions that are screwed into the female thread portion 8a of the reinforcing member 8 are provided at the small diameter portions at both ends, and the coupling tool 29a has one small diameter portion of the flange 2b. It is longer than twice the thickness, and the connector 29b is formed such that one small diameter portion is shorter than the thickness of the flange 2b. The spacer 30 has a substantially rectangular parallelepiped shape, and a cutout 30a having a U-shape in plan view is formed on one side surface of the spacer 30 so that the small diameter portion of the connector 29a can be disposed inside.

The flanges 2b and 2b of the bouldering unit 2 are provided with connecting tools 29a and 29a in a state where one end is inserted into a pair of upper and lower bolt holes 7a and 7a arranged so as to face each other. Are fixed to the flanges 2b and 2b so that the other ends of the pair of connectors 29a and 29a are screwed into both ends, respectively. And the spacer 30 is installed so that the clearance gap between the reinforcement member 8 and the flange 2b may be filled up. The connector 29b is installed only on the lower flange 2b of the lowermost bouldering unit 2.
In this embodiment, the four reinforcing members 8 are arranged at equal intervals in the circumferential direction of the flange 2b. However, the present invention is not limited to this, and the number of the reinforcing members 8 to be installed is changed as appropriate. Is possible.

Generally, changing the arrangement pattern of the hold requires the work of attaching and removing the hold. If this process is repeated many times, the bolt and nut for fixing the hold and the bolt hole of the hold will be It becomes easy to break. On the other hand, in the bouldering unit 1, the arrangement pattern of the hold 3 can be easily changed by installing the bouldering unit 1 by rotating it in a horizontal plane or by turning it upside down. Can be damaged, and the arrangement pattern of the hold 3 can be changed efficiently in a short time.
Furthermore, since the bouldering unit 2 is a lightweight and simple structure of a fiber reinforced resin cylinder, it can be manufactured at low cost, and the work efficiency when carrying, installing or removing is good. .
Further, in the bouldering unit 2, the plate-equipped nut 6 does not protrude to the outer surface, so that the aesthetic appearance is not impaired even when the hold 3 is not attached to the plate-equipped nut 6, and it does not disturb the bouldering. In other words, the bouldering unit 2 has an effect that the hold 3 can be installed in a state that does not hinder bouldering.

As shown in FIG. 2A, the side plate 2a has a flat outer surface. Therefore, if the plate-attached nut 6 is embedded in the side plate 2a in parallel to the flat outer surface, the side plate 2a Even if the side plate 2a is thinner than when the cross-sectional outline is circular, the plate-equipped nut 6 can be completely embedded in the side plate 2a. That is, in the bouldering unit 2, the thickness of the side plate 2a can be reduced.
When the outline of the cross section of the side plate 2a is circular, a gap is generated between the side plate 2a and the hold 3 if the shape of the contact surface of the hold 3 with the side plate 2a does not match the shape of the outer surface of the side plate 2a. End up. Therefore, if the size of the bouldering unit is changed, the hold 3 needs to be recreated. On the other hand, in the bouldering unit 2, since the contact surface of the hold 3 with the side plate 2a may be flat, the hold 3 can be used in common for the bouldering unit 2 of various sizes. Therefore, the bouldering unit 2 is excellent in versatility.

A method of constructing the bouldering tower 1 using the bouldering unit 2 will be described with reference to FIGS. FIG. 4 is a flowchart showing a procedure for constructing the bouldering tower 1, and FIGS. 5 and 6 are diagrams schematically showing a process in which the bouldering unit 2 is stacked.
As shown in FIG. 4, in step S1, among the plurality of bouldering units 2 constituting the bouldering tower 1, the uppermost and second-stage bouldering units 2 and 2 are installed at predetermined locations, and the holds 3 are respectively attached. .
In step S2, the hanging bracket 9a is attached to the uppermost bouldering unit 2, and the hanging bracket 9a is attached to the hook 9b, and then the uppermost bouldering unit 2 is lifted using a crane (not shown) (FIG. 5 ( a)). In step S3, the uppermost bouldering unit 2 is installed on the second bouldering unit 2 with the worker 10 inside (see FIG. 5B). In step S4, the worker 10 installs the reinforcing member 8 at a predetermined location, and the bolts attached to the flanges 2b and 2b of the uppermost and second-stage bouldering units 2 and 2 that are in contact with each other. 7b and the nut 7c are fastened, and the upper and lower reinforcing members 8, 8 are connected to each other via the connecting tool 29a. Accordingly, the uppermost and second-stage bouldering units 2 and 2 are connected to each other, and the reinforcing member 8 is fixed at a predetermined position as described with reference to FIG.

In step S5, the third bouldering unit 2 is installed at a predetermined location and the hold 3 is attached. In step S6, the lifting bracket 9a is attached to the uppermost bouldering unit 2, and the uppermost and second-stage bouldering units 2 and 2 are lifted using a crane (see FIG. 6A). In step S7, the worker 10 enters the inside of the third-stage bouldering unit 2, and in this state, the uppermost and second-stage bouldering units 2 and 2 are installed on the third-stage bouldering unit 2 (FIG. 6 (b)).
In step S8, the worker 10 installs the reinforcing member 8 at a predetermined location, and the bolts 7b attached to the flanges 2b and 2b of the second and third bouldering units 2 and 2 that are in contact with each other. The nut 7c is fastened and the upper and lower reinforcing members 8, 8 are connected to each other via the connecting tool 29a. As a result, the second-stage and third-stage bouldering units 2 and 2 are connected to each other, and the reinforcing member 8 is fixed at a predetermined location.

  Then, the bouldering tower in a state in which all the bouldering units 2 from the uppermost stage to the tenth stage are connected to the fourth to tenth stage bouldering units 2 by performing the same procedure as in steps S5 to S8. 1 (see FIG. 1) is constructed.

  As described above, when the bouldering unit 2 is used, the bouldering tower 1 having a desired height can be easily constructed by changing the number of stacked units. At that time, the arrangement pattern of the hold 3 can be efficiently changed by changing the stacking order of the bouldering units 2. Moreover, since the worker 10 can perform the work of bolting the flanges 2b, 2b of the upper and lower bouldering units 2, 2 inside the bouldering unit 2, workability is good. That is, in the bouldering unit 2, the bouldering tower 1 can be constructed at low cost because the connection work with other bouldering units 2 is easy.

  When the bouldering unit 2 is lifted by a crane or the like, if the hanging metal fitting 9a is attached to the upper part of the bouldering unit 2, a tensile load is applied to the side plate 2a. On the other hand, when the suspension fitting 9a is attached to the lower part of the bouldering unit 2, a compressive load is applied to the side plate 2a. On the other hand, when the reinforcing member 8 is installed inside the bouldering unit 2, the above-described load is distributed to the side plate 2a and the reinforcing member 8, so that the side plate 2a is hardly damaged. Thereby, the safety | security at the time of stacking the bouldering unit 2 using a crane etc. improves.

FIGS. 7A and 7C are perspective views showing an example of the external appearance of the bouldering unit constituting the bouldering tower of this embodiment, and FIG. 7B is the external appearance of the planter installed in the bouldering unit. FIG. 7D is a cross-sectional view taken along line AA in FIG. 7C.
FIG. 7C corresponds to a diagram showing a state where two bouldering units shown in FIG. 7A are stacked. Also, the components shown in FIGS. 1 to 3 are denoted by the same reference numerals and description thereof is omitted.

As shown in FIG. 7 (a), the bouldering unit 11 of this embodiment has a cylindrical shape, and twelve nuts 12 are provided at substantially equal intervals in the circumferential direction in the vicinity of the outer peripheral surface 11a of the upper surface 11b. The female screw portion 12a is provided in an exposed state. On the other hand, twelve bolt holes 7a are provided on the lower surface 11c so that the central axes of the twelve nuts 12 embedded in the upper portion coincide with each other. And the recessed part 11d is provided in the outer peripheral surface 11a so that it may connect with respect to each of this bolt hole 7a. A hold 3 is attached to the outer peripheral surface 11a by using a plate nut 6 embedded with the female screw portion 6a exposed to the outside.
In addition, the planter 13 shown in FIG.7 (b) is formed so that it can be engage | inserted with respect to the recessed part 11d in the state in which the plant 14 is arrange | positioned.

  As shown in FIGS. 7C and 7D, when the two bouldering units 11 and 11 are stacked in a state where the twelve bolt holes 7a and the female screw portions 12a of the nut 12 are aligned with each other, Since the bolt hole 7a is exposed from the outer peripheral surface 11a of the bouldering unit 11 through the recess 11d, the bolt 7b is inserted into the bolt hole 7a and tightened to the nut 12, or the loosened bolt 7b is taken out from the bolt hole 7a. Can be easily performed from the outside of the bouldering unit 11.

That is, in the bouldering unit 2 according to the first embodiment, when a plurality of the bouldering units 2 are stacked and connected to each other, if the diameter is thin and the inside is narrow and the worker 10 cannot enter, the above bolting operation is difficult. It becomes. On the other hand, in the bouldering unit 11 having the above structure, the worker 10 can perform the bolting operation from the outside.
Further, the bouldering tower 15 of the present embodiment has a structure in which a plurality of bouldering units 11 are stacked in the vertical direction and connected to each other using bolts 7b. By installing the planter 13 in the recess 11d of the bouldering unit 11, the "flower tower" in which the outer peripheral surface 15a is surrounded by flowers can be easily constructed as shown in FIG.
In the present embodiment, the bouldering unit 11 and the bouldering tower 15 have a solid structure, but may have a hollow structure. In this case, there is an advantage that a hose or the like for supplying water to the plant 14 installed on the outer peripheral surface 15 a of the bouldering tower 15 can be installed inside the bouldering tower 15.

FIG. 9A and FIG. 9B are perspective views showing an example of the appearance of the bouldering unit of the present embodiment. 10 (a) and 10 (b) are external perspective views of modified examples of the bouldering unit of the present embodiment, and FIG. 10 (c) is a perspective view showing an example of the external appearance of the fixing member. 11 (a) and 11 (b) are views showing how the bouldering unit shown in FIGS. 10 (a) and 10 (b) is attached to the fixing member.
The constituent elements shown in FIGS. 1 to 3 are denoted by the same reference numerals, and description thereof is omitted.

As shown in FIG. 9A and FIG. 9B, the bouldering units 16 and 17 of the present embodiment are made of members whose cross-sectional outlines form a sector shape, and the outer peripheral surfaces 16a and 17a have the second embodiment. Similarly to the bouldering unit 11, the hold 3 is attached using a plate-equipped nut 6 (see FIG. 7D) embedded with the female screw portion 6 a exposed to the outside. In the present specification, bouldering units 16 and 17 have the above-mentioned fan-shaped central angles larger and smaller than 180 degrees, respectively.
In the bouldering units 16 and 17 having such a structure, at least one of two planes each including two radii constituting a sector shape and parallel to the central axis direction is applied to a flat surface such as an existing structure. By making contact, the installation state for the structure is stabilized. Therefore, it can be installed safely and easily using an existing structure.

  As shown in FIGS. 10A and 10B, the bouldering unit 18 includes a lid 19 that is formed of a cylindrical body whose lower part is closed in the bouldering unit 16 and that closes the opened upper part. It is characterized by. That is, similar to the bouldering unit 16, the outer peripheral surface 18a of the bouldering unit 18 is held by using a plate-equipped nut 6 (see FIG. 7 (d)) embedded with the female screw portion 6a exposed to the outside. 3 is attached. In the bouldering unit 18, a plurality of bolt holes 18c are provided in two planes 18b and 18b each including two radii constituting a sector shape and parallel to the vertical direction.

  As shown in FIG. 10 (c), the fixing member 20 includes a lid body 21 whose one end is closed and whose cross-sectional outer shape is a triangular body, and which closes the opened end. The angle formed by the two flat surfaces 20 a and 20 a that do not contact the wall surface 22 is formed to be equal to the angle formed by the flat surfaces 18 b and 18 b of the bouldering unit 18. The flat surfaces 20a and 20a are provided with a plurality of bolt holes 20b so as to communicate with the bolt holes 18c in a state where the flat surfaces 18b and 18b of the bouldering unit 18 are in contact with each other.

When the fixing member 20 having such a structure is installed on the wall surface 22 in a state as shown in FIG. 10C, as shown in FIG. 11A, with the lids 19 and 21 removed, The bouldering unit 18 is attached to the fixing member 20 so that the flat surfaces 18b and 18b are brought into contact with the flat surfaces 20a and 20a, and the central axes of the bolt hole 18c and the bolt hole 20b are aligned. Then, after inserting a hand from the opened end and connecting the bouldering unit 18 and the fixing member 20 using bolts and nuts (both not shown), as shown in FIG. 19 and 21 are attached to the bouldering unit 18 and the fixing member 20, respectively.
That is, in the bouldering unit 18, the lid 19 can be removed and one end can be opened, so that the work of connecting to the fixing member 20 using a bolt can be performed efficiently.

12A and 12B are an external perspective view and a plan view of the bouldering unit of the present embodiment, respectively, and FIGS. 12C and 12D are a plan view of a side plate of the bouldering unit, respectively. It is a side view and FIG.12 (e) is BB arrow sectional drawing of FIG.12 (c). FIG. 13 is an external perspective view of a bouldering tower comprising the bouldering unit of this embodiment.
The constituent elements shown in FIGS. 1 to 3 are denoted by the same reference numerals, and description thereof is omitted.

  As shown in FIGS. 12 (a) and 12 (b), the bouldering unit 23 of the present embodiment has a triangular shape in plan view instead of the side plate 2a and the flanges 2b and 2b in the bouldering unit 2 of the first embodiment. The side plate 23a made up of 12 pairs of plate members 24a and 24b and the outline line when viewed in plan form a regular hexagon, and are provided with two types of flanges 23b and 23c having different sizes, and the plate members 24a and 24b are viewed in plan view. In this case, the outer contour line is formed so as to connect one side of the regular hexagon forming one outer contour line of the flanges 23b and 23c and the apex of the regular hexagon configuring the other outer contour line. And the flanges 23b and 23c are installed in the state which shifted | deviated 30 degrees mutually in planar view.

The bouldering unit 23 can be integrally formed by applying a thermosetting resin to a glass cloth or carbon cloth laid in a mold and then curing it by heating. The members corresponding to the plate members 24a and 24b may be formed so as to be joined to each other.
That is, as shown in FIGS. 12 (c) to 12 (e), the shape in plan view is the same as that of the plate members 24a and 24b, and any one of the joint portions 25a and 25b and the flanges 23b and 23c. After forming two kinds of plate members 26 and 27 each having a flange piece 25c constituting a part standing on three sides by the above-described method, the joint portions 25a and 25b are connected using bolts and nuts. In addition, according to such a method, even when forming the big bouldering unit 23, since it is not necessary to use a big mold, manufacturing cost can be reduced.

When a plurality of bouldering units 23 are stacked such that the center axis is parallel to the vertical direction so that the flanges 23b, 23b and the flanges 23c, 23c are in contact with each other, and connected by bolts and nuts, FIG. A bouldering tower 28 as shown is constructed.
The bouldering tower 28 has an effect that an overhanging portion is repeatedly formed on a part of the outer peripheral surface 28a because the area of the horizontal section continuously increases and decreases along the vertical direction.
That is, according to the use of the bouldering unit 23, the places where overhangs appear regularly on the outer peripheral surface 28a, so that the bouldering tower 28 having a unique undulation and a highly varied shape can be easily constructed. be able to.

  Note that the bouldering tower and bouldering unit of the present invention are not limited to the structures shown in the above-described embodiments. For example, in the first embodiment, the outline of the cross section of the bouldering unit 2 and the bouldering tower 1 is a regular 24-angle, but other regular polygons may be used. In addition, the bouldering unit 23 and the bouldering tower 28 of the fourth embodiment are not limited to regular hexagons in the cross-sectional outline, but may be other regular polygons. Furthermore, in Example 2, instead of the planter 13 formed so as to be able to be fitted into the concave portion 11d of the bouldering unit 11, a planter that is fixed to the plate-equipped nut 6 with a bolt may be used. The numbers of bolt holes and plate-equipped nuts 6 provided in the hold 3 and the bouldering unit are not limited to those shown in each embodiment, and can be changed as appropriate.

  The bouldering unit and the bouldering tower of the present invention are particularly useful when building equipment for performing bouldering in a place where there is no existing structure.

DESCRIPTION OF SYMBOLS 1 ... Bouldering tower 1a ... Outer peripheral surface 2 ... Bouldering unit 2a ... Side plate 2b ... Flange 3 ... Hold 3a ... Bolt hole 3b ... Bolt 4 ... String-like body 5 ... Eye bolt 6 ... Nut with plate 6a ... Female screw part 7a ... Bolt hole 7b ... Bolt 7c ... Nut 8 ... Reinforcing member 8a ... Female thread portion 9a ... Hanging bracket 9b ... Hook 10 ... Worker 11 ... Bouldering unit 11a ... Outer peripheral surface 11b ... Upper surface 11c ... Lower surface 11d ... Recessed portion 12 ... Nut 12a ... Female screw portion DESCRIPTION OF SYMBOLS 13 ... Planter 14 ... Plant 15 ... Bouldering tower 15a ... Outer peripheral surface 16, 17 ... Bouldering unit 16a, 17a ... Outer peripheral surface 18 ... Bouldering unit 18a ... Outer peripheral surface 18b ... Plane 18c ... Bolt hole 19 ... Lid 20 ... Fixing member 20a ... Plane 20b ... Bolt hole 21 ... Cover 22 ... Wall 2 3 ... Bouldering unit 23a ... Side plate 23b, 23c ... Flange 24a, 24b ... Plate material 25a, 25b ... Joint part 25c ... Flange piece 26, 27 ... Plate material 28 ... Bouldering tower 28a ... Outer peripheral surface 29a, 29b ... Connecting tool 30 ... Spacer 30a ... notch 31 ... screw

Claims (5)

It is formed of a fiber reinforced resin, and includes a cylindrical body in which a plurality of holds are attached to the outer surface of a side plate having a polygonal cross section .
It is provided to face both ends of the side plate, and includes a pair of flanges whose outline when viewed in plan forms a regular polygon,
A bouldering unit, wherein a plurality of bolt holes are provided in the flange so as to be equally spaced in a circumferential direction of a circumscribed circle of the outer shape line of the flange .   The bouldering unit according to claim 1, wherein the bouldering unit is made of metal or wood instead of the fiber reinforced resin. A cylindrical reinforcing member shorter than the length of the side plate;
A connecting tool that fixes the plurality of reinforcing members arranged on a straight line to the flange in a state of being connected to each other;
The plurality of bolt holes are provided so as to form a pair with respect to the pair of flanges so that the respective central axes coincide with each other.
3. The bouldering unit according to claim 1, wherein the reinforcing member is installed between the pair of flanges in a state of being connected to the connector that communicates with the bolt hole. 4. The side plates are formed by a plurality of pairs of plate materials that form a triangular shape in plan view,
The pair of flanges includes a first flange and a second flange having different sizes,
As for the said board | plate material, the outline line when it planarly views is the vertex of the regular polygon which comprises one side of the regular polygon which comprises one outline line of said 1st flange and said 2nd flange, and the other outline line The bouldering unit according to claim 1 or 2, wherein the bouldering unit is formed so as to connect the two. A bouldering tower, wherein the bouldering unit according to any one of claims 1 to 4 is formed so as to be stacked in a plurality of stages in the vertical direction.

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