JP2821590B2 - Prop and snow fence - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, a pillar used as an advertising tower or a fence pillar, and a snow-proof fence provided along a road or the like to reduce snow on a road surface or the like.

[0002]

2. Description of the Related Art In general, a conventional pillar is upright until it is used after it has been built. It is preferable to remove or disassemble the snow-proof fence except in winter to damage the landscape. As a conventional snow-proof fence that can be dismantled, there is known a snow-proof fence that connects a plurality of fence members and assembles them vertically.

[0003]

However, the conventional support has a problem that the view is spoiled when not used. In addition, the conventional snow protection fence requires heavy lifting of fence members when dismantling and assembling in consideration of the scenery, which poses a problem in that heavy labor involves dangers, requires extra work, and increases labor costs. there were.

The present invention has been made in view of such a conventional problem, and a support which can be folded so as not to disturb the scenery, and which can be easily and safely assembled and folded using the support, It is an object of the present invention to provide a snow fence capable of reducing the labor cost required for it.

[0005]

In order to achieve the above object, a support according to the present invention of claim 1 has a base, a support body, a holding member, and a worm gear, and the support body is provided with respect to the base. The holding member is capable of holding the support body upright with respect to the base, the worm of the worm gear is rotatably mounted inside the base, and one end of the worm is connected to the base. And the worm wheel of the worm gear is rotatably mounted on the base, and is fixed to the column main body with its rotation axis perpendicular to the length direction of the column main body. .

The support body may be bendable by being rotatably attached to the base by a shaft member, or may be bendable by being attached to the base by a hinge member. The base is preferably fixed on a base. The holding member may be formed of a tubular body that can be opened and closed, or may be formed of a pipe that can move up and down along a column.

The support according to the first aspect of the present invention is used with the base fixed to the installation location. When not in use, the height can be reduced by releasing the holding member and bending the column body relative to the base so as not to obstruct the landscape. At the time of use, the column main body is set upright with respect to the base, and that state is held by the holding member. Holding by the holding member can prevent the support body from being carelessly bent with respect to the base.

[0008]

Further, in the support according to the first aspect of the present invention, when not in use, the worm is rotated by rotating one end of the worm from outside the base, and the worm wheel meshing with the worm is rotated. Since the worm wheel is fixed to the support body, the support body bends with respect to the base as the worm wheel rotates. By rotating one end of the worm in the opposite direction, the support body can be made to stand upright from the bent state. Preferably, one end of the worm is square or has a square hole to facilitate rotation. The rotation of one end of the worm allows the column body to be bent and erected, thereby facilitating the work.

According to a second aspect of the present invention, in the column of the first aspect, the holding member has a tubular body which can be opened and closed by being split in a vertical direction, and when the tubular body is closed, the support body is closed. Is characterized in that it can surround and hold the lower part of the column main body and the upper part of the base in a state of standing upright with respect to the base.

In the column according to the second aspect of the present invention, the holding member surrounds the lower portion of the column main body and the upper portion of the base so that the column main body can be held upright. In addition, the holding can be performed reliably.

According to a third aspect of the present invention, there is provided a snowproof fence comprising two of the columns according to the first or second aspect, an upper frame, a lower frame, and a fence body.
Each strut is arranged parallel to each other with each strut body standing upright and bent to the side of the opposing strut, the upper frame is detachably connected at both ends to the upper part of the upright strut, and the lower frame is upright. Both ends are detachably connected to the lower portion of each of the supporting columns, and the fence body is detachably attached to each of the upright supporting columns and the upper frame and the lower frame connected to each of the supporting columns.

[0013] In the snow fence according to the third aspect of the present invention, the bases of the two pillars are fixed to the installation location for use. In use, each column main body of the two columns is erected and held in that state by each holding member. Both ends of the upper frame are connected to the top of each column, and both ends of the lower frame are connected to the bottom of each column. Attach the fence body inside each column, upper frame and lower frame. Thus, it can be assembled and used for the purpose of snow protection and wind protection.

When not in use, the fence body, the upper frame and the lower frame are removed from each of the columns. The holding member is released at each column, and the column main body is bent with respect to the base. Thereby, the height can be reduced so that the landscape is not obstructed. Each pillar body bends to the side of the opposing pillar, so it takes up less space than when it is bent to the opposite side.

According to a fourth aspect of the present invention, in the snow fence according to the fourth aspect, the lengths of the respective columns from the lower end of each base to the respective column main bodies are different from each other, and both ends of the upper frame have respective columns. The upper frame has a telescopic part, a first bent part, a second bent part, a third bent part, and a fourth bent part, instead of being detachably connected to an upper part of the base. The first bent portion and the second bent portion are provided at both ends of the upper frame, and the third bent portion and the fourth bent portion are provided at respective intermediate portions of the upper frame. A portion is provided between the first bent portion and the third bent portion, and when each of the pillar bodies is vertically bent from an upright state, the upper frame holds the first bent portion and the second bent portion. Fold at the bent part, third bent part and fourth bent part Bending, shrink the extendable portion, each strut body is characterized in that it is arranged in parallel.

In the snow-proof fence according to the fourth aspect of the present invention, at the time of use, each pillar main body of the two pillars is erected and held by each holding member. At this time, the extension portion of the upper frame is extended, and the first to fourth bent portions are straightened. Connect both ends of the lower frame to the lower part of each column. Attach the fence body inside each column, upper frame and lower frame. It can be assembled in this way. When not in use, remove the lower frame from each column and release the holding member. Bend the column body of each column vertically to the base. The upper frame is bent at the first to fourth bent portions, and the expansion and contraction portions are contracted, and the respective pillar main bodies are arranged in parallel. In this way, it is not necessary to attach / remove the upper frame to / from each column during assembly / folding. When this snow fence is installed along the road,
Each pillar body bent vertically can serve as a guardrail.

According to a fifth aspect of the present invention, in the snow-resistant fence according to the third or fourth aspect, one of the two pillars is provided inside the pillar body so as to be parallel to the length direction of the side mounting bar. Wherein the side mounting bar is adjustably mounted to the column body thereof, the lower frame comprises a lower frame body and a lower mounting bar, and the lower mounting bar is provided inside the lower frame body. The fence body is provided in parallel with the length direction thereof, and is attached to the lower frame body so as to be adjustable in distance, and the fence body is detachably attached to one of the side portions to the side attachment bar, and the lower portion is the lower portion. It is characterized by being detachably attached to the attachment bar.

In the snow protection fence according to the fifth aspect of the present invention, when the fence main body is attached, one of its sides is attached to the side attachment bar, and the lower portion is attached to the lower attachment bar. The other side of the fence body is mounted inside the other column and the top is mounted inside the upper frame. The distance is adjusted so that the side mounting bar is closer to the mounted column body and the lower mounting bar is closer to the lower frame body. Thus, the fence body can be securely attached to the support, the upper frame, and the lower frame by stretching the main body without loosening.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 11 show a first embodiment of the present invention. As shown in FIG. 1, the snowproof fence 10 includes two columns 11 and 12, an upper frame 13, a lower frame 14, and a fence body 15. The columns 11 and 12 each have a base 16, a column main body 17, and a holding member 18. FIG. 2 (A)
As shown in the figure, the base 16 has a tubular shape with an upper end 16a opened. The support body 17 has a tubular shape with an open lower end 17a. At the lower end 17a, a stopper 17b is formed to strike the base 16 when the column main body 17 is bent and to keep the column main body 17 perpendicular to the base 16.

FIGS. 2A and 2B and FIGS.
As shown in (B), the columns 11 and 12 each have a worm gear 19. Worm 2 of worm gear 19
0 is a hole 21a on the side of the base 16 at both ends 20a, 20b.
The base 16 is rotatably mounted inside the upper end 16 a of the base 16. The worm 20 has one end 20 a exposed outside the base 16. FIG. 2 (B)
The exposed one end 20a has a square hole 22 as shown in FIG. The worm wheel 23 of the worm gear 19 is
It is fixed to the center of the rotating shaft 24. The rotation shaft 24 is
Both ends 24a, 24b are holes 21c, 21 on the side of the base 16.
d and rotatably attached to the upper end 16a of the base 16. The worm wheel 23 is disposed at the lower end 17 a of the column main body 17 and meshes with the worm 20.

As shown in FIG. 3A, the worm wheel 23 is sandwiched between two fixing plates 25,
It is fixed to the fixing plates 25, 25 by a. Fixing plate 25,
25 is fixed to the support body 17. This allows
The worm wheel 23 is fixed to the column main body 17 with the rotating shaft 24 perpendicular to the length direction of the column main body 17, and the column main body 17 is attached to the base 16 in a bendable manner. As shown in FIG. 1, the struts 11 and 12 are
Are different from each other in length from the lower end 16b to the respective column main bodies 17. The struts 11 and 12 are arranged parallel to each other with the respective strut main bodies 17 standing upright, and are bent toward the opposing struts 11 and 12.

As shown in FIG. 4, the holding member 18 has a cylindrical body 26 and stoppers 27, 27,. Cylinder 26
Is formed by connecting two semi-cylinders 26a, 26a with a hinge 28, and can be opened and closed by breaking in the vertical direction. Cylinder 2
6 can surround and hold the lower part of the support | pillar main body 17 and the upper part of the base 16 with the support | pillar main body 17 standing upright with respect to the base 16 when closed. Each stopper 27 can be stopped with the cylinder 26 closed. Thereby, the holding member 18
Can hold the column main body 17 upright with respect to the base 16.

As shown in FIGS. 5 to 8, the upper frame 1
3 is a first fixing part 13a, a telescopic part 13b, a first connecting part 13c, a second connecting part 13d, and a second fixing part 13e.
And first to fourth bent portions 29a to 29d. The expansion and contraction portion 13b includes a pipe 30a and a rod 30b inserted into the pipe 30a. The first fixed portion 13a and the rod 30b of the expansion / contraction portion 13b are connected to each other by a first bent portion 29a so as to be bendable. The second connecting portion 13d and the second
The second bending portion 29b is connected to the fixing portion 13e so as to be bendable. The pipe 30a of the expansion and contraction portion 13b and the first connection portion 13c are foldably connected by a third bending portion 29c. The elastic portion 13b is provided between the first bent portion 29a and the third bent portion 29c. First
The connecting portion 13c and the second connecting portion 13d are connected to the fourth bent portion 2
It is connected to bendable by 9d. Each of the first to fourth bent portions 29a to 29d is formed of a shaft member that allows the members to be connected to each other to be bent.

The upper frame 13 is provided on each of the upright columns 1.
A first fixed portion 13a and a second fixed portion 13e at both ends are fixed to the upper portions of the first and second portions 12, 12, respectively. 6 and 7
As shown in FIG. 5, when each of the pillar main bodies 17 is vertically bent from an upright state, the upper frame 13 is bent at the first to fourth bent parts 29a to 29d, and the elastic part 13b is contracted. They are arranged in parallel. As shown in FIG. 1, both ends 14a, 14b of the lower frame 14 are detachably connected to the lower portions of the upright columns 11, 12 from above the holding member 18.

As shown in FIG. 1, two columns 11, 12
Has side mounting bars 31, 32 inside its column body 17 parallel to its length. Side mounting bar 31
Are fixed to the column main body 17 of the column 11 with bolts 31a. The side mounting bar 32 is attached to the support body 1 of the support 12.
7 are fixed by bolts 32a. Side mounting bar 3
2 is capable of adjusting the distance with respect to the column main body 17 by rotating the bolt 32a.

As shown in FIG. 1, the lower frame 14 comprises a lower frame body 33 and a lower mounting bar 34.
The lower mounting bar 34 is provided inside the lower frame main body 33 in parallel with its length direction. Lower mounting bar 3
4 is fixed to the lower frame main body 33 with bolts 34a. The lower mounting bar 34 can adjust the distance to the lower frame main body 33 by rotating a bolt 34a.

As shown in FIG. 9, the end of the bolt 32a has a square cross section. FIG. 10 (A),
As shown in (B), the handle 35 used to rotate the bolt 32a has a square hole 35a at the end that fits into the end of the bolt 32a. The end of the bolt 34a has the same shape as the end of the bolt 32a, and the handle 3
It is rotatable using 5a. 11 (A), (B),
As shown in (C), the side mounting bars 31 and 32 and the lower mounting bar 34 include a first member 36a and a second member 36.
b, the third member 36c is overlapped. Ladder-shaped hooks 37 are provided inside the side mounting bars 31 and 32 and the lower mounting bar 34.

As shown in FIG. 1, the fence body 15
It is formed by knitting a synthetic resin belt 15a in a lattice shape, and has a rectangular shape. As shown in FIG. 11D, the fence body 15 has hooks 1 at both ends of each of the vertical and horizontal belts 15a.
5b. The hooks 15b on the upper part of the fence main body 15 are hooked on the upper frame 13, and the hooks 15b on both sides and the lower part are hooked on hooks 37 of the side mounting bars 31, 32 and the lower mounting bar. As a result, the fence body 15 is connected to the upright columns 11 and 12.
And the upper frame 1 connected to the columns 11 and 12
3 and is detachably attached to the inside of the lower frame 14.

Next, the operation will be described. Snow fence 10
Is used in such a manner that the bases 16 of the two columns 11 and 12 are bolted to the base at the installation location. At the time of use, the respective column main bodies 17 of the two columns 11 and 12 are erected on the base 16. At this time, the elastic portion 13b of the upper frame 13 is extended, and the first to fourth bent portions 29a to 29d are straightened. Open the cylinder 26 of each holding member 18 to open the support body 1
The lower body 7 and the upper part of the base 16 are surrounded, and the cylindrical body 26 is closed and stopped by the stopper 27 to maintain the upright state of the support body 17. The support body 17 is held by the holding member 18.
Can be prevented from being carelessly bent with respect to the base portion 16, and the upright state can be reliably maintained. In addition, prop 1
Since it is possible to determine at a glance whether or not the holding members 18 are attached to the first and second members 12, it is possible to easily confirm the holding of the column main body 17.

Next, both ends 14a, 1 of the lower frame 14
4b is connected to the lower part of each of the columns 11 and 12. The hooks 15a on the upper, both sides and lower part of the fence body 15 are connected to the hooks 37 of the side mounting bars 31 and 32 and the upper frame 1.
3 and the hook 37 of the lower mounting bar 34. Thereby, the fence main body 15 is attached to the inside of each of the columns 11, 12, the upper frame 13, and the lower frame 14.
By rotating the bolt 32a by the handle 35, the distance is adjusted so that the side mounting bar 32 is brought closer to the attached column body 17, and the bolt 35a is rotated by the handle 35.
By rotating 4a, the distance is adjusted so that the lower mounting bar 34 is brought closer to the lower frame body 33. Thereby, the fence body 15 is stretched so as not to be loosened, and the columns 11, 12 and the upper frame 13 and the lower frame 14 are surely secured.
And can be attached to. Thus the snow fence 1
0 can be assembled and used for snow and wind protection.

When not in use, the fence body 15 and the lower frame 14 are removed from the columns 11 and 12. First,
The stoppers 27 of the holding member 18 are released, and the cylinders 26 attached to the columns 11, 12 are removed. A tool is inserted into a square hole at one end 20 a of the worm 20, and the one end 20 a is rotated from outside the base 16. Accordingly, the worm 20 is rotated, and the worm wheel 23 meshing with the worm 20 is rotated. Worm wheel 2
Since 3 is fixed to the support body 17, the support body 17 bends with respect to the base 16 as the support 3 rotates. In this manner, the column main body 17 of each column 11, 12 is bent perpendicularly to the base 16. As shown in FIG.
3 is bent at the first to fourth bent portions 29a to 29d,
The expansion and contraction portions 13b are contracted, and the respective pillar main bodies 17 are arranged in parallel. By folding the column main body 17 and lowering the height, the landscape can be prevented.

Each column main body 17 has opposing columns 11, 12.
, It takes up less space than if it were bent to the opposite side. The upper frame 13 is provided with each support 11,
Since it is fixed to the upper portion of the support frame 12, it is not necessary to attach and remove the upper frame 13 to and from the columns 11 and 12 at the time of assembling and folding, and it is possible to save labor. The snowproof fence 10 can be easily and safely assembled and folded, and the labor cost required for it can be reduced. If the one end 20a of the worm 20 is rotated in the opposite direction, the column main body 17 can be erected from the bent state. The snow protection fence 10 is connected to one end 2 of the worm 20.
Since the column main body 17 can be bent and erected by the rotation of 0a, the work of assembling and folding can be easily performed. When installed along the road, the snow-proof fence 10 can play a role of a guardrail or a vehicle stop by each of the pillar main bodies 17 bent vertically (see FIG. 12).

Next, a second embodiment of the present invention will be described. FIG. 12 shows a second embodiment of the present invention. In the snow fence 50 of the second embodiment, the upper frame 5
1 is configured such that both ends are detachably connected to the upper portions of the upright columns 52, 53, instead of being fixed to the upper portions of the columns 52, 53. The upper frame 51 is
The upper frame 1 of the first embodiment, which is made of a rod-shaped member.
Unlike the case No. 3, it does not have an elastic part or a bent part. The other configuration of the snow fence 50 is the same as the configuration of the snow fence 10 of the first embodiment, and redundant description will be omitted.

Since the upper frame 51 has a simple structure, the snow-proof fence 50 has the first form.
The manufacturing cost can be reduced as compared to

Next, a third embodiment of the present invention will be described. FIGS. 13A and 13B show a third embodiment of the present invention.
The form is shown. In the snow protection fence of the third embodiment, each column 61 has a base 66, a column body 67, a worm gear 62, and three spur gears 63, 64, 65. The worm 68 of the worm gear 62 is rotatably mounted inside the upper end of the base 66. The worm wheel 69 of the worm gear 62 is fixed at a position shifted from the center of the rotating shaft 70, and the rotating shaft 70 is rotatably attached to the upper end of the base 66. Worm wheel 69
Is disposed at the lower end of the column main body 67 and meshes with the worm 68.

The spur gear 63 is fixed to the center of the rotating shaft 70. The spur gear 64 is fixed to the center of the rotating shaft 71, and the rotating shaft 71 is rotatably attached to the upper end of the base 66 above the rotating shaft 70. The spur gear 65 is fixed to the center of the rotating shaft 72, and the rotating shaft 72 is rotatably attached to the upper end of the base 66 above the rotating shaft 71. The worm wheel 69 includes two fixing plates 73, 73
Is fixed between. The fixing plates 73 are fixed to the column body 67. Thus, the spur gear 65 is fixed to the column main body 67 with the rotation shaft 72 perpendicular to the length direction of the column main body 67, and the column main body 67 is attached to the base 66 so as to be bendable. The other configuration of the snow protection fence of the third embodiment is the same as the configuration of the snow protection fence 10 of the first embodiment, and duplicate description will be omitted.

Next, a fourth embodiment of the present invention will be described. FIG. 14 shows a fourth embodiment of the present invention. In the snow protection fence of the fourth embodiment, each of the columns 81 has a base 82, a column main body 83, and a rotating member 84. The rotation member 84 has an inner cylinder and an outer cylinder that can rotate with each other. The inner cylinder of the rotating member 84 is fixed to a central portion of the rotating shaft 85. The rotation shaft 85 is rotatably attached to the upper end of the base 82. The outer cylinder of the rotating member 84 is
It is fixed between the two fixing plates 86, 86. The fixing plates 86, 86 are fixed to the column body 83. Thus, the column main body 83 is attached to the base 82 so as to be bendable. Other configurations of the snow protection fence of the fourth embodiment are the same as those of the snow protection fence 10 of the first embodiment,
A duplicate description will be omitted.

Next, a fifth embodiment of the present invention will be described. FIG. 15 shows a fifth embodiment of the present invention. In the snow protection fence of the fifth embodiment, each support 91 has a base 92, a support main body 93, and a hinge member 94. The base 92 and the column main body 93 are connected to each other by a hinge member 94, and the column main body 93 is attached to the base 92 so as to be bendable. The other configuration of the snow protection fence of the fifth embodiment is the same as the configuration of the snow protection fence 10 of the first embodiment, and redundant description will be omitted.

[0039]

According to the strut and the snow fence according to the present invention, the strut body can be bent with respect to the base,
Further, since the support body can be held upright by the holding member, the support body can be folded up when not in use to protect the scenery. In particular, according to the snow fence according to the present invention, assembly and folding can be performed easily and safely, and labor costs required for the assembly and folding can be reduced.

Further, according to the strut according to the present invention, since the strut body has the worm gear and can be bent and erected by rotating one end of the worm exposed to the outside, the assembling and folding work can be easily performed. it can.

In particular, according to the support according to the second aspect of the present invention, since the holding member has the openable and closable cylindrical body and surrounds and holds the support main body and the base, the holding of the support main body can be confirmed. In addition to being easy, the upright state can be reliably maintained.

[0042] In particular, according to the snow fence according to the present invention, the upper frame is fixed to the upper part of each pillar,
When each column body is bent vertically, the upper frame is bent at the first to fourth bent portions, and the expansion and contraction portion is shrunk so that each column body is arranged in parallel. Therefore, when assembling and folding, the upper frame is attached.・ The labor of removing can be saved, and when installed along the road, it can function as a guardrail.

In particular, according to the snow protection fence according to the present invention, the fence main body is detachably attached to one of the side portions and the lower portion to the side mounting bar and the lower mounting bar, respectively. Since the lower mounting bar can adjust the distance with respect to the support body and the lower frame body, respectively, by adjusting the distance between the side mounting bar and the lower mounting bar with the support body and the lower frame body, the fence body is stretched so as not to loosen. Thus, mounting can be performed reliably.

[Brief description of the drawings]

FIG. 1 is a front view of a snowproof fence according to a first embodiment of the present invention.

2A is a front vertical cross-sectional view and FIG. 2B is a side vertical cross-sectional view showing the structure of a support of the snow fence shown in FIG.

FIG. 3 is a (A) plan side cross-sectional view and a (B) bottom side cross-sectional view of the pillar of the snow fence shown in FIG. 1;

FIG. 4 is a perspective view of a holding member of the snow-proof fence shown in FIG.

FIG. 5 is a front view showing a state where a lower frame and a fence main body of the snowproof fence shown in FIG. 1 are removed.

6 is a front view showing a state in which the snow-proof fence shown in FIG. 5 is being bent.

FIG. 7 is a front view showing a completely folded state of the snow fence shown in FIG. 5;

8 (A) is a plan view of an upper frame, FIG. 8 (B) is an inside side view of a support, and FIG. 5 (C) is an outside side view of a support.

FIG. 9 is an enlarged side view of the vicinity of a bolt for attaching a side attachment bar of the snowproof fence shown in FIG. 5;

10A is a plan view and FIG. 10B is a front view of a handle used to rotate the bolt shown in FIG.

11A is a front view of a first member, FIG. 11B is a front view of a second member, and FIG.
It is explanatory drawing which shows the state which attaches a fence main body to (C) the front view of a 3rd member, and (D) side part attachment bar.

FIG. 12 is a view showing a snow fence according to a second embodiment of the present invention;
(A) Front view, (B) side view, showing the use state, (C) left side view, (D) right side view, showing the folded state, (E)
It is a front view.

FIGS. 13A and 13B are a side longitudinal sectional view and a front longitudinal sectional view showing a support of a snow fence according to a third embodiment of the present invention.

FIG. 14 is a side longitudinal sectional view showing a support of a snow-proof fence according to a fourth embodiment of the present invention.

FIG. 15 is a front vertical sectional view showing a support of a snowproof fence according to a fifth embodiment of the present invention.

[Description of sign]

 DESCRIPTION OF SYMBOLS 10 Snowproof fence 11, 12 Prop 13 Upper frame 14 Lower frame 15 Fence main body 16 Base 17 Prop main body 18 Holding member 19 Worm gear 31, 32 Side mounting bar 34 Lower mounting bar

Claims (5)

(57) [Claims] 1. A support having a base, a column main body, a holding member, and a worm gear, wherein the column main body is attached to the base so as to be bendable, and the holding member is in a state in which the column main body stands upright with respect to the base. The worm of the worm gear is rotatably mounted inside the base, one end of the worm is exposed outside the base, and the worm wheel of the worm gear is rotatably mounted on the base. A column fixed to the column main body with a rotation axis perpendicular to the length direction of the column main body. 2. The holding member has a tubular body which can be opened and closed by being broken in a vertical direction, and when the tubular body is closed, the lower part of the pillar main body and the lower part of the pillar main body are in an upright state with respect to the base. The strut according to claim 1, wherein the strut can surround and hold the upper portion of the base. 3. A strut comprising: two struts according to claim 1; an upper frame; a lower frame; and a fence body, wherein the struts are parallel to each other with the strut bodies standing upright. The upper frame is removably connected to the upper portion of each of the upright columns, and the lower frame is removably connected to the lower portion of each of the upright columns. The fence body is detachably attached to each of the upright columns and the upper and lower frames connected to the respective columns. 4. The struts have different lengths from the lower end of each base to the strut main body, and the upper frame is fixed instead of being detachably connected at both ends to the upper portions of the struts. An extension portion, a first bent portion, a second bent portion, a third bent portion, and a fourth bent portion, wherein the first bent portion and the second bent portion are both ends of the upper frame. Part, the third bent part and the fourth bent part are respectively provided at intermediate parts of the upper frame, and the elastic part is provided between the first bent part and the third bent part. The upper frame is bent at the first bent portion, the second bent portion, the third bent portion, and the fourth bent portion when each of the pillar main bodies is vertically bent from an upright state, Each of the support bodies is arranged in parallel with the expansion and contraction section contracting. Snow fence according to claim 3, wherein. 5. One of the two struts has a side mounting bar inside its column body parallel to its length direction, said side mounting bar being adjustable in distance with respect to said column body. The lower frame comprises a lower frame main body and a lower mounting bar, and the lower mounting bar is provided inside the lower frame main body in parallel with its length direction, and is adjustable in distance with respect to the lower frame main body. 5. The fence body according to claim 3, wherein one side of the fence body is detachably attached to the side attachment bar, and a lower portion thereof is detachably attached to the lower attachment bar. 6. Snow fence.