Simple building and method for assembling simple building

Abstract

To provide a simple structure capable of immediately exhibiting designed strength after assembly, a hammer device usable for assembling the simple structure, and a method for assembling the simple structure.SOLUTION: A vinyl house H, as a simple building of the present invention, comprises a plurality of frame members 1 arranged side by side along a depth direction, each frame member 1 comprising a pair of posts 10, 10 arranged side by side and standing upright from the ground G as viewed from the depth direction, and an arch portion 11 having an arcuate or gable shape, both ends of which are detachably connected to respective upper ends of the posts 10, wherein each post 10 comprises an underground portion 10a buried in the ground by driving and a protruding portion 10b protruding upward from an upper end of the underground portion 10a.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a simple building, a hammer device, and a method for assembling a simple building.

Background Art

[0002] Simple buildings such as greenhouses, greenhouses, and simple warehouses are configured in an arch shape, and include a plurality of arch-shaped aggregates arranged side by side in the depth direction and a sheet extended over each aggregate. Conventionally, when assembling such a simple building, the aggregates were erected on the ground by burying the lower ends on both sides of the arch-shaped aggregates in the ground without constructing a foundation. To bury the aggregates in the ground, for example, holes were drilled in the ground with a drill, the lower ends of the aggregates were inserted into the holes, and the holes were filled back with soil. (For example, see Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, when inserting the lower end of the aggregate into the hole dug with a drill and filling the hole back with soil as in the prior art, even if the filled-back soil is tamped, air inevitably enters between the soil particles and a gap is formed, so that the soil around the aggregate becomes loose. Then, sufficient pressure cannot be applied to the aggregate buried in the ground, and the friction generated between the aggregate and the filled-back soil becomes small. Therefore, until rain falls after the simple building is assembled and the gap between the soil particles is filled and the soil around the aggregate is compacted, the aggregate is more likely to come out than designed. Therefore, in the conventional simple building, even after the assembly is completed, the fixing strength to the ground becomes weaker than the designed fixing strength until the soil around the aggregate is compacted.

[0005] Therefore, an object of the present invention is to provide a simple building that can exhibit the fixed strength as designed immediately after assembly, a hammer device that can be used for assembling the simple building, and a method for assembling the simple building.

Means for Solving the Problems

[0006] The simple building of the present invention for achieving the above object includes a plurality of aggregates arranged side by side along the depth direction. The aggregates include a pair of columns that are arranged side by side left and right as viewed from the depth direction and stand up from the ground, and an arch portion that is arc-shaped or mountain-shaped and has both ends detachably connected to the upper ends of the respective columns. The column has a buried portion buried in the ground by driving and a protruding portion protruding upward from the upper end of the buried portion. According to this configuration, since the column is driven into the ground, the soil around the column does not loosen as compared with the case of inserting the column into a hole dug with a drill or the like as in the conventional case and filling the hole with soil. Therefore, sufficient pressure acts on the column immediately after driving, and the friction generated between the column and the soil becomes large from the beginning, so that the column is difficult to pull out immediately after being driven into the ground. Therefore, the simple building can exhibit the fixed strength as designed with respect to the ground immediately after assembly.

[0007] Further, in the simple building of the present invention, the column may stand up along the vertical direction. According to this configuration, since the axial direction of the column coincides with the vertical direction, even when a downward force acts on the upper end of the column due to a load caused by snow accumulation or the like on the simple building, the column is less likely to fall compared with the case where the axial direction of the column is inclined with respect to the vertical direction. Furthermore, since the friction generated between the column and the soil is large from the beginning, the column can be maintained in a posture along the vertical direction only by driving the column into the ground in a vertical posture. Therefore, the column can be easily erected along the vertical direction.

[0008] Further, in the simple building of the present invention, the buried portion of the column may be 1 m or more. According to this configuration, since the column is driven into the ground by 1 m or more, the friction generated between the column and the soil becomes very large, the column becomes more difficult to pull out, and the fixed strength of the simple building is improved.

[0009] In addition, in the simple building of the present invention, the arch portion may be composed of a plurality of separable parts. According to this configuration, even when the simple building is large and the arch portion is large, the arch portion can be easily transported, and the arch portion can be easily assembled to the support column.

[0010] Further, the simple building of the present invention may include a crossbar that extends along the depth direction and is respectively connected to the lower ends of the protruding portions of the support columns adjacent to each other in the depth direction, and a reinforcing pile in which a portion protruding from the ground is fixed to the crossbar in a state of being driven deeper into the ground than the underground portion of the support column on the side of the crossbar. According to this configuration, since the reinforcing pile fixed to the crossbar connected to the support column is driven deeper into the ground than the support column, it becomes more difficult for the support column to come out. Furthermore, since the length of the underground portion of the support column depends on the axial length of the support column, there may be cases where the support column cannot be driven to a desired depth depending on the axial length of the support column. Even in such a case, since the support column can be made difficult to come out by driving the reinforcing pile, it is possible to prevent the fixing strength of the simple building from being insufficient.

[0011] The hammer device of the present invention is for driving a cylindrical support column into the ground, and includes a striking portion for striking the upper end of the support column and a driving portion for vibrating the striking portion up and down. The striking portion has a vibrating shaft that vibrates up and down by the driving portion and an attachment that is mounted on the outer periphery of the vibrating shaft and can be fitted to the upper end of the support column. The attachment has a cylindrical portion that is fitted inside the upper end of the support column and an annular flange portion provided on the outer periphery of the upper end of the cylindrical portion. According to this configuration, while inserting the vibrating shaft inside the upper end of the support column, fitting the cylindrical portion inside the upper end of the support column, and abutting the flange portion against the upper end of the support column, by vibrating the vibrating shaft up and down by the driving portion, since the cylindrical portion is fitted inside the upper end of the support column, it is possible to prevent the upper end of the support column from being deformed by the striking force of the striking portion, and at the same time, strike the upper end of the support column with the striking portion to drive the support column into the ground.

[0012] The method for assembling a simple building of the present invention is a method for assembling a simple building provided with a pair of columns standing from the ground and an arch portion that is arc-shaped or gable-shaped and has both ends detachably connected to the upper ends of the respective columns. The method is characterized by comprising a driving step of driving the columns into the ground by hitting the upper ends of the columns in a state where the columns are erected with respect to the ground. According to this configuration, since the columns are driven into the ground, the soil around the columns does not loosen as compared with the case of inserting the columns into holes dug with a drill or the like and filling the holes with soil as in the prior art. Therefore, sufficient pressure acts on the columns immediately after driving, and the friction generated between the columns and the soil becomes large from the beginning, so that the columns are difficult to pull out immediately after being driven into the ground. Therefore, the simple building assembled by this method can exhibit the fixed strength as designed with respect to the ground immediately after assembly.

[0013] Another method for assembling a simple building is a method for assembling a simple building provided with a pair of columns standing from the ground and an arch portion that is arc-shaped or gable-shaped and has both ends detachably connected to the upper ends of the respective columns. The method is characterized by comprising a step of continuously excavating the ground along the depth direction to form a concave groove, a driving step of driving the columns into the ground by hitting the upper ends of the columns in a state where the columns are erected with respect to the bottom of the concave groove, and a step of filling the concave groove with soil. According to this configuration, since the columns are driven into the ground, the soil around the columns does not loosen as compared with the case of inserting the columns into holes dug with a drill or the like and filling the holes with soil as in the prior art. Therefore, sufficient pressure acts on the columns immediately after driving, and the friction generated between the columns and the soil becomes large from the beginning, so that the columns are difficult to pull out immediately after being driven into the ground. Therefore, the simple building assembled by this method can exhibit the fixed strength as designed with respect to the ground immediately after assembly. Further, even when the soil on the surface layer of the ground where the greenhouse is to be installed is loose, if the concave groove is dug until a layer of compacted soil is exposed, the columns can be driven into the pre-compacted soil.

[0014] In addition, in the method for assembling a simple building according to the present invention, the driving step is performed with the support column in a posture along the vertical direction. According to this configuration, since the friction generated between the support column and the soil is large from the beginning, the support column can be maintained in a posture along the vertical direction just by driving it into the ground with the support column in a posture along the vertical direction. Therefore, the support column can be easily erected along the vertical direction.

Advantages of the Invention

[0015] The simple building of the present invention can exhibit the designed strength immediately after assembly. The method for assembling a simple building according to the present invention can assemble a simple building that can exhibit the designed strength immediately after assembly. Further, the hammer device of the present invention can be used for assembling the above simple building.

Brief Description of the Drawings

[0016]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Embodiments for Carrying Out the Invention

[0017] The following describes this embodiment with reference to the drawings. The same reference numerals attached through several drawings indicate the same components.

[0018] As shown in FIG. 1, the vinyl house H as a simple building of this embodiment includes a plurality of arch-shaped aggregates 1 arranged side by side along the depth direction, a plurality of sheet fixing frames F spanned between the aggregates 1, and a covering sheet S fixed to each aggregate 1 via the sheet fixing frame F, and is configured in an arch shape.

[0019] Specifically, as shown in FIGS. 1 and 2, the aggregate 1 has a pair of columns 10, 10 that are arranged side by side left and right as viewed from the depth direction and stand up from the ground G, and an arch portion 11 that is in a mountain shape and has both ends detachably connected to the upper ends of the pair of columns 10, 10, and is configured in an arch shape.

[0020] The column 10 is a straight and long cylindrical metal pipe, and as shown in FIGS. 1 and 2, has a buried portion 10a buried in the ground by driving and a protruding portion 10b protruding upward from the upper end of the buried portion 10a, and stands upright along the vertical direction. That is, the column 10 of this embodiment also serves as the frame of the vinyl house H and the function of the foundation pile. Note that the shape of the column 10 is not limited to a cylindrical shape, and for example, it may be a square tubular shape.

[0021] In this way, when the buried portion 10a of the column 10 is buried in the ground by driving, the soil around the buried portion 10a does not loosen compared to the case of inserting the column into a hole dug with a drill or the like and filling the hole with soil as in the conventional case. Therefore, the column 10 can exhibit the designed fixing strength against the ground immediately after being erected on the ground.

[0022] In this embodiment, the total length of the column 10 is 3.5 m and the length of the buried portion 10a is 1 m, but the length of the buried portion 10a is appropriately changed according to the softness of the ground.

[0023] Further, as shown in Fig. 2, the arch portion 11 is pipe-shaped and includes a pair of left and right split bodies 11a, 11a that extend while curving in a direction approaching each other from the upper ends of the respective columns 10, and a joint 11b that connects the tips of the respective split bodies 11a, 11a and is located at the top of the arch portion 11.

[0024] More specifically, the split body 11a has a straight portion 11a1 that extends linearly upward from the upper end of one column 10, a curved portion 11a2 that curves from the upper end of the straight portion 11a1 toward the center in the width direction between the columns 10, 10, and an inclined portion 11a3 that inclines upward from the upper end of the curved portion 11a2 toward the center in the width direction between the columns 10, 10.

[0025] Also, the outer diameter of the straight portion 11a1 of the split body 11a is slightly smaller than the inner diameter of the column 10. The lower end portion of the straight portion 11a1 is inserted into the inner periphery of the upper end of the column 10 as shown in the partially enlarged view of Fig. 2, and is supported by a horizontal bolt B that penetrates the upper end portion of the column 10 in the horizontal direction.

[0026] The joint 11b is a U-shaped pipe material whose inner diameter is slightly larger than the outer diameter of the inclined portion 11a3 of the split body 11a. The inclined portions 11a3 of the respective split bodies 11a are inserted into the inner sides of both ends, thereby connecting the upper ends of the left and right split bodies 11a, 11a.

[0027] Also, since the upper ends of the inclined portions 11a3 of the respective split bodies 11a are connected by the joint 11b, the upper ends of the respective split bodies 11a are pulled toward the center in the width direction of the columns 10, 10. Therefore, as shown in the partially enlarged view of Fig. 2, the straight portion 11a1 leans slightly toward the center side in the width direction between the columns 10, 10, and the outer periphery of the straight portion 11a1 is pressed against the inner periphery of the column 10. Then, a large friction is generated between the straight portion 11a1 and the column 10, making it difficult for the split body 11a to come out of the column 10.

[0028] Further, although not shown in the drawings, a waterproof tape is wound around the outer periphery of the upper end of the support column 10 and the outer periphery of the lower end side of the divided body 11a so as to cover the gap formed between the support column 10 and the divided body 11a, preventing rainwater and dew condensation water from entering the inside of the support column 10.

[0029] In the present embodiment, the arch portion 11 is formed in a mountain shape, but it may be formed in an arc shape. Also, since the arch portion 11 of the present embodiment is composed of a plurality of dividable parts (two divided bodies 11a, 11a and the joint 11b), even when the vinyl house H is large and the arch portion 11 is large, the arch portion 11 can be easily transported and can be easily assembled to the support column 10. However, the arch portion 11 may be formed by bending one or two pipe materials, or may be composed of even more pipe materials.

[0030] Also, as shown in FIG. 1, a crossbar 6 extending along the depth direction is spanned between the lower ends of the protruding portions 10b of the support columns 10 of each frame member 1. The crossbar 6 is respectively connected to the lower ends of the protruding portions 10b of the support columns 10 via connecting fittings (not shown). The crossbar 6 prevents the support columns 10 from sinking into the ground due to the weight of the snow accumulated on the roof portion of the vinyl house H or the like.

[0031] Also, as shown in FIG. 1, between the adjacent support columns 10, 10 in the depth direction, at positions adjacent to the side of the crossbar 6, reinforcing piles 7 are respectively driven in. The upper ends of the reinforcing piles 7 protruding from the ground G are fixed to the crossbar 6 via fixing fittings (not shown).

[0032] Also, as shown in FIG. 1, a plurality of sheet fixing frames F are spanned along the depth direction between the respective aggregates 1. The sheet fixing frame F has a groove formed with a width of the opening narrower than the bottom, and the groove is attached to the aggregate 1 with the opening facing the outside of the plastic greenhouse H. After inserting the covering sheet S into the groove of the sheet fixing frame F attached to the aggregate 1 in this way, an elastic member (not shown) is inserted into the groove from above the covering sheet S, so that the covering sheet S is fixed to each sheet fixing frame F.

[0033] Note that, as the covering sheet S of the present embodiment, a soft sheet such as a polyolefin film such as a vinyl chloride film or a PET film is used, but a hard sheet such as a polyester film or a fluorine film may also be used.

[0034] In the present embodiment, a single-span type plastic greenhouse H installed independently is described, but the plastic greenhouse H may be a multi-span type in which a plurality of spans are arranged side by side in the width direction.

[0035] Next, the process of installing the aggregate 1 in the method of assembling the plastic greenhouse H will be described. First, viewed from the depth direction of the plastic greenhouse H to be installed (hereinafter simply referred to as the "depth direction"), piles 2 are driven into the four corners of a rectangle whose left and right lengths are equal to the frontage of the plastic greenhouse H and whose front and rear lengths are longer than the depth length of the plastic greenhouse H.

[0036] Next, viewed from the depth direction, the adjacent piles 2 in the front-rear direction and the left-right direction are connected by two upper and lower water lines 3, 3 stretched horizontally, and the installation location of the plastic greenhouse H is surrounded by the water line 3. In FIG. 3, one of the four piles 2 and the water line 3 connected to the pile 2 are shown.

[0037] Next, as shown in FIG. 3, the operator stands the support column 10 with its outer periphery in contact with two water supply lines 3 along the depth direction (front - rear direction in the figure) of the greenhouse H. Then, since the water supply lines 3 are horizontally stretched between the piles 2, when viewed from the depth direction, the left - right inclination of the support column 10 is positioned at a right angle to the horizontal direction.

[0038] After that, the operator applies a spirit level (not shown) that can determine whether the pipe is vertical to the front side or the rear side of the support column 10 when viewed from the depth direction, and supports the support column 10 at a position where the front - rear inclination of the support column 10 is at a right angle to the horizontal direction when viewed from the depth direction. Then, since the left - right and up - down inclinations of the support column 10 are at right angles to the horizontal direction, the support column 10 is supported by the operator in a posture along the vertical direction.

[0039] And, as shown in FIG. 3, with the operator supporting the support column 10 in a posture along the vertical direction, another operator different from the operator supporting the support column 10 gets on the scaffolding platform 4a of the aerial work vehicle 4 having an adjustable - height scaffolding platform 4a, and hits the upper end of the support column 10 with the hammer device 5 to drive the support column 10 into the ground.

[0040] After driving the support column 10 to a certain depth, the height of the scaffolding platform 4a of the aerial work vehicle 4 is lowered, and then the operator hits the upper end of the support column 10 with the hammer device 5 again to drive the support column 10 into the ground to a desired depth (1 m in this embodiment). Although not shown, a mark is made in advance at the boundary between the underground part 10a of the support column 10 that is planned to be buried in the ground and the protruding part 10b protruding above the ground. Since the operator can drive the support column 10 into the ground while visually observing the mark, it is easy to manage the driving depth of the support column 10.

[0041] In this way, when the support column 10 is driven into the ground, compared with the case of inserting a support column into a hole dug by a drill or the like as in the prior art and then filling the hole with soil, since the support column 10 is directly driven into the pre - compacted soil, no gap is formed between the particles of the soil around the underground part 10a of the support column 10, and a large pressure can be applied to the outer periphery of the underground part 10a from the surrounding soil. Therefore, the friction generated between the support column 10 and the soil becomes large from the beginning, and it becomes difficult for the support column 10 to come out immediately after being driven into the ground.

[0042] Further, when inserting a support column into a hole dug by a drill or the like as in the prior art and filling the hole with soil, during the period until the soil compacts, since the friction generated between the support column and the soil is small, even if the support column is erected in a posture along the vertical direction, if an external force acts on the support column before the soil around the support column compacts, the support column may tilt with respect to the vertical direction.

[0043] On the other hand, as described above, when the support column 10 is driven into the ground, since the friction generated between the support column 10 and the soil is large from the beginning, the support column 10 can be maintained in a posture along the vertical direction just by driving the support column 10 into the ground with the support column 10 in a vertical posture. Therefore, the support column 10 can be easily erected along the vertical direction.

[0044] When the support column 10 stands up along the vertical direction in this way, since the axial direction of the support column 10 coincides with the vertical direction, compared with the case where the axial direction of the support column 10 is inclined with respect to the vertical direction, even if a downward force acts on the upper end of the support column 10 due to a load caused by snow accumulation on the greenhouse H or the like, it is difficult for a rotational torque to act on the support column 10, and the support column 10 is not easily toppled. Here, the state where the axial direction of the support column 10 coincides with the vertical direction includes a state where the axial direction of the support column 10 is slightly deviated from the vertical direction as much as possible when the greenhouse H can be assembled.

[0045] Also, in the present embodiment, the support column 10 is positioned in a vertical posture by using the water thread 3 and a level (not shown), but the method of positioning the support column 10 in a vertical posture is not particularly limited.

[0046] In addition, when the length of the underground portion 10a of the support column 10 is long and the support column 10 cannot be driven into the ground to a desired depth even if the driving operation of the support column 10 is divided into two times, the driving operation may be divided into three or more times. On the contrary, when the length of the underground portion 10a of the support column 10 is short, the support column 10 may be driven into the ground by a single driving operation.

[0047] In addition, in this embodiment, the worker rides on the scaffold base 4a of the aerial work platform 4 and drives the support column 10 with the hammer device 5. However, instead of the aerial work platform 4, for example, a temporary scaffold, a stepped platform, a stepladder, etc. may be used.

[0048] Here, as shown in FIGS. 4 and 5, the hammer device 5 includes a striking portion 50 that strikes the upper end of the support column 10, a drive portion 51 that vibrates the vibration axis 50a of the striking portion 50, and a case 53 that houses the drive portion 51 and the vibration axis 50a.

[0049] As shown in FIG. 4, the case 53 includes a box-shaped first case portion 53a, a substantially cylindrical second case portion 53b connected to the lower end of the first case portion 53a, and a substantially cylindrical third case portion 53c connected to the lower end of the second case portion 53b and having a smaller diameter than the second case portion 53b.

[0050] The drive portion 51 is housed in the first case portion 53a and the second case portion 53b. Further, the upper portion of the vibration axis 50a is housed in the third case portion 53c in a state where it is prevented from rotating and is axially movable, and the lower portion of the vibration axis 50a projects downward from the third case portion 53c.

[0051] Also, as shown in FIG. 4, at the upper end of the first case portion 53a, a handle 54 having a U-shaped switch 54a that activates the drive unit 51 when pushed inward is provided. Further, at the upper end of the second case portion 53b, a side handle 55 that protrudes laterally is provided. An operator can operate and carry the hammer device 5 by holding the handle 54 and the side handle 55. Also, at the outer periphery of the lower end of the third case portion 53c, a stopper 56 for preventing the vibration shaft 50a from coming off is provided. Although not described in detail, the stopper 56 has a pin (not shown) that can be inserted into and removed from a notch (not shown) provided along the axial direction on the outer periphery of the portion of the vibration shaft 50a housed in the inner periphery of the third case portion 53c. Therefore, the stopper 56 can prevent the vibration shaft 50a from coming off by inserting the pin into the notch of the vibration shaft 50a with the vibration shaft 50a inserted into the third case portion 53c. However, the structure of the stopper 56 described above is an example, and the structure of the stopper 56 is not particularly limited as long as it can prevent the vibration shaft 50a from coming off without interfering with the axial movement of the vibration shaft 50a.

[0052] Next, as shown in the operating principle diagram of FIG. 5, the drive unit 51 includes a cylinder 51a, a piston 51b that is disposed movably up and down within the cylinder 51a and closes the upper end opening of the cylinder 51a, a striker 51c that is disposed movably up and down below the piston 51b within the cylinder 51a and forms an air chamber E in which air is enclosed between the striker 51c and the piston 51b, an impact bolt 51d that is disposed at a distance below the striker 51c within the cylinder 51a and is fixedly secured to the cylinder 51a, an electric motor (not shown), and a crank 51e that converts the rotational motion of the output shaft of the electric motor into a linear motion and transmits it to the piston 51b. Also, the upper end of the vibration shaft 50a, which is held axially movably in a non-rotating state within the third case portion 53c, abuts against the lower end of the impact bolt 51d.

[0053] In the drive unit 51 configured as described above, when the electric motor is driven, as shown in FIGS. 5(A) to 5(D), the piston 51b reciprocates up and down within the cylinder 51a due to the operation of the crank 51e, repeating the operation of expanding and compressing the air chamber E. More specifically, as shown in FIGS. 5(A), (B), and (C), when the piston 51b compresses the air chamber E, the striker 51c moves downward by the pressure of the raised air chamber E and abuts against the impact bolt 51d. Then, as shown in FIG. 5(D), the striker 51c moves upward by the reaction force when it abuts against the impact bolt 51d, separates from the impact bolt 51d, and returns to its original position.

[0054] That is, every time the piston 51b compresses the air chamber E, the striker 51c abuts against the upper end of the impact bolt 51d and transmits an impact force to the impact bolt 51d. And since the upper end of the vibration shaft 50a of the striking part 50 abuts against the lower end of the impact bolt 51d, the impact force of the striker 51c transmitted to the impact bolt 51d is repeatedly transmitted to the vibration shaft 50a, and the vibration shaft 50a vibrates up and down.

[0055] In this way, the drive unit 51 vibrates the vibration shaft 50a of the striking part 50 up and down by driving the electric motor. In this embodiment, the drive source of the drive unit 51 is an electric motor, but the drive source may be, for example, an engine. Also, the operation principle of the drive unit 51 described above is an example, and the configuration of the drive unit 51 is not particularly limited as long as the vibration shaft 50a of the striking part 50 can be vibrated up and down.

[0056] Returning, as shown in FIGS. 4 and 6, the striking part 50 is provided with an attachment 50b that is mounted on the outer periphery of the vibration axis 50a and can be fitted to the upper end of the support column 10. Specifically, as shown in FIGS. 4 and 6, the attachment 50b has a cylindrical tube portion 50b1 and an annular flange portion 50b2 provided on the outer periphery of the upper end of the tube portion 50b1. The outer diameter of the tube portion 50b1 is formed to be slightly smaller than the inner diameter of the support column 10. Therefore, the tube portion 50b1 can be fitted inside the upper end of the support column 10. In this embodiment, since the support column 10 is formed in a cylindrical shape, the tube portion 50b1 of the attachment 50b is also formed in a cylindrical shape. However, the shape of the tube portion 50b1 only needs to conform to the shape of the support column 10. Therefore, when the support column 10 has a shape other than a cylindrical shape, for example, a square tube shape, the tube portion 50b1 of the attachment 50b may also be a square tube shape.

[0057] Here, as shown in FIG. 6, on the portion of the vibration axis 50a of the striking part 50 that protrudes from the third case part 53c, there is a columnar insertion part 50a1 that can be inserted into the inner circumference of the support column 10, a columnar attachment receiving part 50a2 that is connected to the upper end of the insertion part 50a1 and has a larger diameter and a shorter axial length than the insertion part 50a1, and a stopper part 50a3 that is connected to the upper end of the attachment receiving part 50a2, is columnar with a larger diameter than the outer circumference of the lower end of the third case part 53c and a shorter axial length than the attachment receiving part 50a2, and abuts against the lower end of the second case part 53b.

[0058] Therefore, as shown in FIG. 6, when the attachment 50b is mounted on the outer periphery of the insertion part 50a1 on the vibration axis 50a, the flange part 50b is abutted against the attachment receiving part 50a2, so the upward movement is restricted.

[0059] Then, as shown in FIG. 6, while inserting the insertion portion 50a1 of the vibration shaft 50a inside the upper end of the support column 10, the cylindrical portion 50b1 of the attachment 50b is fitted inside the upper end of the support column 10, and with the flange portion 50b2 abutted against the upper end of the support column 10, the motor is driven to vibrate the vibration shaft 50a up and down. Then, due to the striking force of the hammer device 5, the support column 10 can be driven into the ground. At this time, since the cylindrical portion 50b1 of the attachment 50b is fitted inside the upper end of the support column 10, it is possible to prevent the upper end of the support column 10 from being deformed by the striking force of the hammer device 5.

[0060] Also, it is very difficult to drive the support column 10 into the ground to a depth of 1 m or more by manual labor. However, the hammer device 5 using an electric motor (driving source) can exert a very strong striking force, so the support column 10 can be easily driven into the ground to a depth of 1 m or more. Note that as the device for driving the support column 10 into the ground, a device other than the hammer device 5, for example, a pile driver, may be used, but the hammer device 5 is preferable because it is small and easy to carry.

[0061] Also, in the present embodiment, the support column 10 is driven into the ground by the hammer device 5 in a cylindrical shape without crushing and sharpening the lower end. Then, since the support column 10 is driven into the ground while maintaining its rigidity, it is easy to make the support column 10 go straight. Also, even if the support column 10 with a cylindrical lower end is driven into the ground, soil enters the inside of the support column 10 and the lower end opening is filled, and the support column 10 penetrates into the ground while crushing obstacles such as stones contained in the ground. Therefore, there is no need to deliberately crush and sharpen the lower end of the support column 10, and the labor for processing the support column 10 can be reduced. However, the lower end of the support column 10 may be crushed and sharpened.

[0062] Also, the driving depth of the support column 10, that is, the length of the underground portion 10a, may be less than 1 m. However, since the soil at a deeper position is more compressed and tightened than the soil at a shallower position, it is preferable that the length of the underground portion 10a of the support column 10 is 1 m or more because the pressure acting on the underground portion 10a of the support column 10 becomes larger. Therefore, the friction generated between the soil and the support column 10 becomes larger, and it becomes more difficult for the support column 10 to come out, which is preferable.

[0063] Then, the columns 10 of the other aggregate 1 are also erected side by side at predetermined intervals along the depth direction in the same procedure as described above. Also, a plurality of columns 10 are erected in the same procedure at positions facing each other on the opposite side in the left-right direction when viewed from the depth direction.

[0064] Next, as shown in FIG. 7, a crossbar 6 extending along the depth direction is installed on the side of the column 10, and the crossbar 6 is connected to the lower ends of the protruding portions 10b protruding from the ground G in each adjacent column 10 in the depth direction via connecting fittings (not shown).

[0065] Thereafter, as shown in FIG. 7, between the adjacent columns 10, 10 in the depth direction and at positions adjacent to the side of the crossbar 6, a reinforcing pile 7 that is cylindrical and has an axial length longer than at least the underground portion 10a buried in the ground of the column 10 is driven in by the hammer device 5. At this time, as shown in FIG. 7, the reinforcing pile 7 is buried deeper into the ground than the underground portion 10a and is driven until the upper end protrudes from the ground G to such an extent as to face the crossbar 6.

[0066] Then, the portion of the reinforcing pile 7 protruding from the ground G is fixed to the crossbar 6 via a fixing fitting (not shown). The structure of the fixing fitting is not particularly limited as long as the reinforcing pile 7 can be fixed to the crossbar 6. Also, the reinforcing pile 7 may be fixed to the crossbar 6 by means other than the fixing fitting.

[0067] In this way, when the reinforcing pile 7 driven deeper into the ground than the underground portion 10a of the column 10 is connected to the column 10 via the crossbar 6, the column 10 becomes more difficult to pull out of the ground by the amount of pressure received by the reinforcing pile 7 in the ground. Also, since the reinforcing pile 7 is directly driven into the pre-compacted soil in the same manner as the column 10, the friction generated between the reinforcing pile 7 and the soil becomes large from the beginning, so the reinforcing pile 7 becomes difficult to pull out immediately after being embedded in the ground. Note that the longer the buried portion of the auxiliary pile 7 in the ground, the more difficult it is to pull out from the ground, and the column 10 also becomes more difficult to pull out accordingly. Therefore, the upper end of the reinforcing pile 7 only needs to protrude from the ground G to such an extent that it can be fixed to the crossbar 6 via the fixing fitting.

[0068] Further, as described above, it is preferable that the longer the length of the underground portion 10a of the support column 10 is, the more difficult it is for the support column 10 to come out. However, since the length of the underground portion 10a of the support column 10 depends on the axial length of the support column 10, there may be a case where the support column 10 cannot be driven to a desired depth depending on the axial length of the support column 10. Even in such a case, as described above, when the reinforcing pile 7 is driven, it becomes difficult for the support column 10 to come out.

[0069] Also, in the present embodiment, the reinforcing piles 7 are driven into the ground at all positions between the adjacent support columns 10, 10 in the depth direction. However, the reinforcing piles 7 may be driven only at any one of all positions between the adjacent support columns 10, 10 in the depth direction.

[0070] Further, the reinforcing pile 7 may have a shape other than a cylindrical shape. For example, it may have a square tube shape. Also, like the support column 10, the reinforcing pile 7 may be driven into the ground by a device other than the hammer device 5. Further, the means for fixing the reinforcing pile 7 and the crossbeam 6 is not limited to a fixing metal fitting. For example, a hook may be provided on the side of the upper end side of the reinforcing pile 7, and the reinforcing pile 7 may be driven into the ground G with the hook facing the upper part of the crossbeam 6, and then the hook may be hooked on the upper part of the crossbeam 6 to fix the reinforcing pile 7 to the crossbeam 6.

[0071] Also, the crossbeam 6 is installed in the same procedure for the support columns 10 arranged on the opposite sides in the left - right direction as viewed from the depth direction, and the reinforcing piles 7 are driven in, thereby preventing the support columns 10 from sinking into the ground and making it more difficult for the support columns 10 to come out. Note that when the driving of the support columns 10 alone can sufficiently prevent the support columns 10 from coming out, the driving of the reinforcing piles 7 may be omitted.

[0072] Also, as shown in FIG. 8, the ground G may be continuously excavated along the depth direction in advance using a heavy machine to form a concave groove 9, and after the support column 10 is erected on the bottom 9a of the concave groove 9 and the upper end of the support column 10 is struck with the hammer device 5 to drive the support column 10 into the ground, the concave groove 9 may be filled back with soil.

[0073] By doing so, even when the soil on the surface of the ground where the greenhouse H is installed is loose, if the concave groove 9 is dug until a compacted soil layer is exposed, the support column 10 can be driven into the pre-compacted soil. In addition, in this embodiment, a heavy machine is used to form the concave groove 9, but the method for forming the concave groove 9 is not particularly limited, and the concave groove 9 may be formed manually.

[0074] In addition, in the assembly process described above without providing the concave groove 9, since there is no process of forming the concave groove 9, the time and cost required for assembling the aggregate 1 can be reduced.

[0075] Also, except for the process of forming the concave groove 9 and erecting the support column 10 at the bottom 9a of the concave groove 9, it is the same as the assembly process described above. Therefore, for example, the crossbar 6 is arranged along the bottom 9a of the concave groove 9, and the reinforcing pile 7 is driven into the ground in a state of being erected at the bottom 9a of the concave groove 9. Then, the crossbar 6 and the reinforcing pile 7 are buried in the concave groove 9 when the concave groove 9 is filled back with soil.

[0076] Subsequently, as shown in FIG. 2, the lower ends of the divided bodies 11a of the arch portion 11 are respectively inserted into the upper ends of the adjacent support columns 10, 10 in the left-right direction as viewed from the depth direction, and the upper ends of the divided bodies 11a are connected by the joints 11b, thereby spanning the arch portion 11 between the upper ends of the support columns 10, 10. Thereafter, although not shown, a waterproof sheet is wound around the outer periphery of the upper end of the support column 10 and the outer periphery of the lower end side of the divided body 11a to cover the gap formed between the support column 10 and the divided body 11a, thereby preventing rainwater and condensed water from entering the inside of the support column 10.

[0077] By performing the same procedure to span the arch portion 11 between the upper ends of the adjacent support columns 10, 10 in the left-right direction as viewed from the depth direction, a plurality of aggregates 1 are arranged side by side along the depth direction.

[0078] A plurality of sheet fixing frames F are spanned between a plurality of aggregates 1 assembled in this way, and a vinyl house H assembled by fixing a covering sheet S to the sheet fixing frame F has columns 10 of the aggregate 1 driven into the ground. Since the friction generated between the columns 10 and the soil is large from the beginning, the vinyl house H can exhibit the fixing strength as designed with respect to the ground immediately after assembly.

[0079] As described above, the vinyl house H as a simple building according to the present embodiment includes a plurality of aggregates 1 arranged side by side along the depth direction. The aggregate 1 includes a pair of columns 10 that are arranged side by side from left to right as viewed from the depth direction and stand up from the ground G, and an arch portion 11 that is arc-shaped or mountain-shaped and both ends thereof are detachably connected to the upper ends of the columns 10 respectively. The column 10 has a ground portion 10a buried in the ground by driving and a protruding portion 10b protruding upward from the upper end of the ground portion 10a.

[0080] According to the vinyl house H configured in this way, since the columns 10 are driven into the ground, the soil around the columns 10 does not loosen compared to the case where the columns are inserted into holes dug with a drill or the like and the holes are filled back with soil as in the prior art. Therefore, sufficient pressure acts on the columns 10 immediately after driving, and the friction generated between the columns 10 and the soil becomes large from the beginning, so the columns 10 are difficult to pull out immediately after being driven into the ground. Therefore, the vinyl house H can exhibit the fixing strength as designed with respect to the ground immediately after assembly.

[0081] Further, in the vinyl house H of the present embodiment, the columns 10 stand up along the vertical direction. In the vinyl house H configured in this way, since the axial direction of the columns 10 coincides with the vertical direction, even when a downward force acts on the upper ends of the columns 10 due to a load caused by snow accumulation or the like on the vinyl house H, compared with the case where the axial direction of the columns 10 is inclined with respect to the vertical direction, the columns 10 are less likely to fall down.

[0082] Also, in the greenhouse H configured as described above, since the friction generated between the support column 10 and the soil is large from the beginning, the support column 10 can be maintained in a posture along the vertical direction just by driving it into the ground with the support column 10 in a vertical posture. Therefore, the support column 10 can be easily erected along the vertical direction. However, the axial direction of the support column 10 may be slightly inclined with respect to the vertical direction as long as the greenhouse H can be assembled.

[0083] Also, in the greenhouse H of the present embodiment, the underground part 10a of the support column 10 is 1 m. According to the greenhouse H configured in this way, since the support column 10 is driven 1 m into the ground, the friction generated between the support column 10 and the soil becomes very large, making it more difficult for the support column 10 to come out, and improving the fixing strength of the greenhouse H. However, the length of the underground part 10a is not particularly limited as long as the greenhouse H can exhibit the required strength, and it may be 1 m or more or less than 1 m.

[0084] Also, in the greenhouse H of the present embodiment, the arch part 11 is composed of a plurality of separable parts. In the greenhouse H configured in this way, even when the greenhouse H is large and the arch part 11 becomes large, the arch part 11 can be easily transported and can be easily assembled to the support column 10. However, the arch part 11 may be composed of one part. Also, the greenhouse H of the present embodiment includes a crossbar 6 that extends along the depth direction and is connected to the lower ends of the protruding parts 10b of the support columns 10 adjacent to each other in the depth direction, and a reinforcing pile 7 whose part protruding from the ground is fixed to the crossbar 6 in a state where it is driven deeper into the ground than the underground part 10a of the support column 10 on the side of the crossbar 6. In the greenhouse H configured in this way, since the reinforcing pile 7 fixed to the crossbar 6 connected to the support column 10 is driven deeper into the ground than the support column 10, it becomes more difficult for the support column 10 to come out.

[0085] In addition, since the length of the underground portion 10a of the support column 10 depends on the axial length of the support column 10, there may be cases where the support column 10 cannot be driven to a desired depth depending on the axial length of the support column 10. Even in such cases, driving the reinforcing pile 7 can make it difficult for the support column 10 to come out, so it is possible to prevent the fixing strength of the plastic greenhouse H from being insufficient.

[0086] Note that the depth at which the reinforcing pile 7 is driven into the ground may be shorter than the length of the underground portion 10a of the support column 10. Even in such a case, it is possible to make it more difficult for the support column 10 to come out and increase the fixing strength of the plastic greenhouse H. Also, when the support column 10 can be sufficiently prevented from coming out only by driving it into the ground, driving of the reinforcing pile 7 may be omitted.

[0087] In addition, the hammer device 5 of the present embodiment drives a cylindrical support column 10 into the ground, and includes a striking portion 50 that strikes the upper end of the support column 10 and a driving portion 51 that vibrates the striking portion 50 up and down. The striking portion 50 has a vibrating shaft 50a that vibrates up and down by the driving portion 51 and an attachment 50b that is attached to the outer periphery of the vibrating shaft 50a and can be fitted to the upper end of the support column 10. The attachment 50b has a cylindrical portion 50b1 that is fitted inside the upper end of the support column 10 and an annular flange portion 50b2 that is provided on the outer periphery of the upper end of the cylindrical portion 50b1.

[0088] In the hammer device 5 configured in this way, while inserting the vibrating shaft 50a inside the upper end of the support column 10, fitting the cylindrical portion 50b1 inside the upper end of the support column 10, and abutting the flange portion 50b2 against the upper end of the support column 10, by vibrating the vibrating shaft 50a up and down by the driving portion 51, since the cylindrical portion 50b1 is fitted inside the upper end of the support column 10, it is possible to prevent the upper end of the support column 10 from being deformed by the striking force of the striking portion 50, and at the same time, strike the upper end of the support column 10 with the striking portion 50 to drive the support column 10 into the ground.

[0089] In addition, the method for assembling the vinyl house H as a simple building according to the present embodiment includes a driving step of driving the column 10 into the ground by hitting the upper end of the column 10 in a state where the column 10 is erected with respect to the ground G. In such a method for assembling the vinyl house H, since the column 10 is driven into the ground, the soil around the column 10 does not loosen compared to the case of inserting the column into a hole dug with a drill or the like and filling the hole with soil as in the conventional method. Therefore, sufficient pressure acts on the column 10 immediately after driving, and the friction generated between the column 10 and the soil increases from the beginning, so that the column 10 is difficult to pull out immediately after being driven into the ground. Therefore, the vinyl house H assembled by this method can exhibit the fixed strength as designed with respect to the ground immediately after assembly.

[0090] In addition, the method for assembling the vinyl house H as a simple building according to the present embodiment includes a step of continuously excavating the ground G along the depth direction to form a concave groove 9, a driving step of driving the column 10 into the ground by hitting the upper end of the column 10 in a state where the column 10 is erected with respect to the bottom 9a of the concave groove 9, and a step of filling the concave groove 9 with soil.

[0091] In such a method for assembling the vinyl house H, since the column 10 is driven into the ground, the soil around the column 10 does not loosen compared to the case of inserting the column into a hole dug with a drill or the like and filling the hole with soil as in the conventional method. Therefore, sufficient pressure acts on the column 10 immediately after driving, and the friction generated between the column 10 and the soil increases from the beginning, so that the column 10 is difficult to pull out immediately after being driven into the ground. Therefore, the vinyl house H assembled by this method can exhibit the fixed strength as designed with respect to the ground immediately after assembly. Furthermore, even when the soil on the surface layer of the ground where the vinyl house H is installed is loose, if the concave groove 9 is dug until a layer of compacted soil is exposed, the column 10 can be driven into the pre-compacted soil.

[0092] In addition, in the method for assembling the greenhouse H according to the present embodiment, a driving step of driving the support column 10 into the ground is performed with the support column 10 in a posture along the vertical direction. In such a method for assembling the greenhouse H, since the friction generated between the support column 10 and the soil is large from the beginning, the support column 10 is maintained in a posture along the vertical direction only by driving it into the ground with the support column 10 in a posture along the vertical direction. Therefore, the support column 10 can be easily erected along the vertical direction.

[0093] In addition, in the present embodiment, the greenhouse H is described as an example of a simple building, but the simple building may be a greenhouse, a simple warehouse, or the like, and is not limited to the greenhouse H.

[0094] As described above, the preferred embodiments of the present invention have been described in detail, but it is natural that modifications, deformations, and changes can be made without departing from the scope of the claims.

Explanation of reference numerals

[0095] 1... aggregate, 5... hammer device, 6... crossbar, 7... reinforcing pile, 9... groove, 9a... bottom, 10... support column, 10a... underground part, 10b... protruding part, 11... arch part, 50... striking part, 51... driving part, 51a... vibration shaft, 51b... attachment, 51b1... cylindrical part, 51b2... flange part, H... greenhouse (simple building)

Claims

1. Comprising a plurality of aggregates arranged side by side along the depth direction, The aggregate has a pair of columns that stand upright from the ground and are arranged side by side left and right when viewed from the depth direction, and an arch portion that is arc-shaped or mountain-shaped and both ends of which are detachably connected to the upper ends of the respective columns, The column has a buried portion buried in the ground by driving and a protruding portion protruding upward from the upper end of the buried portion A simple building characterized by this.

2. The column stands upright along the vertical direction The simple building according to claim 1, characterized by this.

3. The buried portion of the column is 1 m or more The simple building according to claim 1, characterized by this.

4. The arch portion is composed of a plurality of separable parts The simple building according to claim 1, characterized by this.

5. A crossbar that extends along the depth direction and is connected to the lower ends of the protruding portions of the adjacent columns in the depth direction, And a reinforcing pile having a portion protruding from the ground in a state of being driven deeper into the ground than the buried portion of the column and fixed to the crossbar on the side of the crossbar The simple building according to claim 1, characterized by this.

6. A hammer device for driving a cylindrical column into the ground, A striking portion that strikes the upper end of the column, And a driving portion that vibrates the striking portion up and down, The striking portion has a vibrating shaft that vibrates up and down by the driving portion, and an attachment mounted on the outer periphery of the vibrating shaft and capable of fitting into the upper end of the column, The attachment has a cylindrical portion that fits inside the upper end of the column and an annular flange portion provided on the outer periphery of the upper end of the cylindrical portion A hammer device characterized by this.

7. A method for assembling a simple building comprising an aggregate having a pair of columns standing upright from the ground and an arch portion that is arc-shaped or mountain-shaped and both ends of which are detachably connected to the upper ends of the respective columns, Comprising a driving step of driving the column into the ground by striking the upper end of the column in a state where the column is standing upright with respect to the ground A method for assembling a simple building characterized by this.

8. A method for assembling a simple building comprising an aggregate having a pair of columns standing upright from the ground and an arch portion that is arc-shaped or mountain-shaped and both ends of which are detachably connected to the upper ends of the respective columns, A step of continuously excavating the ground along the depth direction to form a concave groove, A driving step of driving the column into the ground by hitting the upper end of the column in a state where the column is erected with respect to the bottom of the concave groove; And a step of filling the concave groove with soil. A method for assembling a simple building, characterized in that.

9. The driving step is performed in a state where the column is in a posture along the vertical direction. The method for assembling a simple building according to claim 7 or 8, characterized in that.

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