Fence

Abstract

To provide a fence which can be fixed firmly between a floor surface and a ceiling, and which includes a fence support having a simple configuration.SOLUTION: A fence has a connection mechanism in which a fence support connects a fixed pole and a movable pole. The connection mechanism includes: a cylinder member fixed to the fixed pole, for holding the movable pole so as to move in the vertical direction; and a lever member mounted on the cylinder member so as to rotate between a first angle position and a second angle position around a rotation shaft extending in the horizontal direction. The lever member includes: a cam part which is positioned inside the cylinder member, and when the lever member rotates from the first angle position toward the second angle position, comes into contact with an end surface of the movable pole and presses the same; and an operation part which is connected to the cam part, and at least partially positioned on the outside of the cylinder member.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present application relates to a fence to be installed indoors. [Background technology]

[0002] Fences that are detachably installed indoors are equipped with a mechanism for supporting the fence body. For example, if the fence body is tall, the fence body is supported by fence posts that are fixed so as to be stretched between the floor and ceiling (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Registered Utility Model No. 3211884 Summary of the Invention [Problem to be solved by the invention]

[0004] The fence posts described above are difficult to press firmly against the floor and ceiling, and it is not easy to secure them firmly between the floor and ceiling. In addition, to prevent breakdowns and increase in manufacturing costs, it is desirable for the structure of the fence posts to be simple.

[0005] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a fence that can be firmly fixed between the floor and the ceiling and has fence posts with a simple structure. [Means for solving the problem]

[0006] A fence according to one embodiment of the present invention comprises a fence main body and fence posts supporting the fence main body, wherein the fence posts have a floor contact portion that contacts the floor surface, a ceiling contact portion that contacts the ceiling, a fixed pole extending vertically from one of the floor contact portion and the ceiling contact portion, a movable pole extending vertically from the other of the floor contact portion and the ceiling contact portion, and a connection mechanism that connects the fixed pole and the movable pole, wherein the connection mechanism includes a tubular member that is fixed to the fixed pole and holds the movable pole movably in the vertical direction, and a lever member attached to the tubular member so as to rotate between a first angular position and a second angular position around a rotation axis that extends horizontally, wherein the lever member includes a cam portion located inside the tubular member that contacts and presses against the end face of the movable pole when the lever member rotates from the first angular position toward the second angular position, and an operating portion connected to the cam portion and at least a portion of which is located outside the tubular member.

[0007] With this configuration, when a user operates the operating unit to rotate the lever member from the first angle position to the second angle position, the movable pole moves relative to the tubular member and the fence post extends vertically. As a result, the fence post can press against the floor and ceiling with great force, firmly securing the fence post between the floor and ceiling. Furthermore, with the above configuration, the fence post can be formed using a small number of parts, resulting in an extremely simple structure.

[0008] Furthermore, in the above fence, when the lever member rotates from the first angular position toward the second angular position, it passes through a third angular position just before the second angular position, and the vertical distance from the rotation axis to the point where the cam portion and the end face of the movable pole contact is greater when the lever member is at the second angular position than when it is at the first angular position, and is greater when the lever member is at the third angular position than when it is at the second angular position.

[0009] With this configuration, to rotate the lever member from the second angular position to the third angular position, the movable pole must be moved away from the pivot axis. However, when the fence post is fixed between the floor and the ceiling, a force is applied to the movable pole in a direction toward the pivot axis. This keeps the lever member in the second angular position. In other words, once the fence post is fixed, it is difficult to remove.

[0010] In addition, in the above fence, a guide groove extending in the vertical direction may be formed on one of the inner surface of the tubular member and the outer surface of the portion of the movable pole that is held by the tubular member, and a protrusion that is inserted into the guide groove may be formed on the other.

[0011] With this configuration, when the movable pole moves relative to the tubular member, the protrusion is guided by the guide groove, allowing the movable pole to move vertically without rotating, thereby firmly fixing the fence post between the floor and ceiling.

[0012] In the above fence, the inner peripheral surface of the tubular member and the outer peripheral surface of the portion of the movable pole that is held by the tubular member may have corresponding polygonal cross-sectional shapes.

[0013] Even with this configuration, when the movable pole moves relative to the tubular member, it moves vertically without rotating, allowing the fence post to be firmly fixed between the floor and ceiling.

[0014] In the above fence, the rotation shaft may be located outside the axis of the cylindrical member.

[0015] This configuration allows the distance from the pivot shaft to the end of the cam to be greater than when the pivot shaft is positioned on the axis of the cylindrical member, allowing the cam to press strongly against the end face of the movable pole, firmly securing the fence post between the floor and ceiling.

[0016] In the above fence, the operating portion may be formed so as to be parallel to the tubular member when the lever member is in the second angular position.

[0017] With this configuration, when the lever member is in the second angular position, the operating portion is less likely to get in the way.

[0018] In the above fence, the tubular member may be cylindrical, and the operating portion may have a shape that curves along the outer circumferential surface of the tubular member when the lever member is in the second angular position.

[0019] With this configuration, when the lever member is in the second angular position, the operating portion is even less likely to get in the way.

[0020] In the above fence, the fence post may further have a length setting mechanism that can arbitrarily set the length of one or both of the fixed pole and the movable pole.

[0021] With this configuration, the user can firmly secure the fence post between the floor and ceiling by rotating the lever member from the second angle position to the first angle position while keeping one or both of the fixed pole and the movable pole as long as possible. [Effects of the Invention]

[0022] According to the above configuration, it is possible to provide a fence that can be firmly fixed between the floor and the ceiling and that has fence posts with a simple structure. [Brief explanation of the drawings]

[0023] [Figure 1] FIG. 1 is a front view of the fence. [Figure 2] FIG. 2 is an enlarged view of the connection mechanism when the lever member is in a first angular position. [Figure 3] FIG. 3 is a cross-sectional view taken along the line III-III in FIG. 2(a). [Figure 4] FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. 2(a). [Figure 5] FIG. 5 is an enlarged view of the connection mechanism when the lever member is in the third angular position. [Figure 6] FIG. 6 is an enlarged view of the connection mechanism when the lever member is in the second angular position. DETAILED DESCRIPTION OF THE INVENTION

[0024] (Outline of the fence) A fence 100 according to an embodiment of the present invention will be described below. First, an overview of the fence 100 will be described. FIG. 1 is a front view of the fence 100. The fence 100 according to this embodiment is configured so that it can be detachably installed indoors. As shown in FIG. 1, the fence 100 according to this embodiment includes a fence main body 10 and fence posts 20.

[0025] The fence main body 10 has a pair of left and right opening / closing doors 11. The portions of each opening / closing door 11 that are on the outer side in the width direction of the fence main body 10 (left and right direction on the paper surface of FIG. 1 ) are rotatably supported by fence posts 20. One of the two opening / closing doors 11 is provided with a connector 12, and the other is provided with a connectable member 13. By connecting this connectable member 13 to the connector 12, the two opening / closing doors 11 are maintained in a closed state.

[0026] The fence body 10 of this embodiment is formed in a lattice pattern. However, the shape of the fence body 10 is not limited to this. For example, the fence body 10 may be a flat plate or may be made of a mesh material. Furthermore, although the fence body 10 of this embodiment is configured to be openable and closable, it may also be configured not to be openable and closable. The height of the fence body 10 is not particularly limited, but is, for example, 180 cm or more.

[0027] The fence posts 20 are parts that support the fence main body 10. In this embodiment, the fence posts 20 are located on both sides of the fence main body 10 in the width direction. The two fence posts 20 located on both sides of the fence main body 10 in the width direction have the same configuration. The fence posts 20 extend in the vertical direction and are fixed between the floor surface 101 and the ceiling 102. More specifically, the fence posts 20 are fixed so that they are stretched between the floor surface 101 and the ceiling 102.

[0028] (fence post) Next, we will explain in detail the fence post 20. As shown in Figure 1, the fence post 20 has a floor contact part 21, a ceiling contact part 22, a fixed pole 23, a movable pole 24, a length setting mechanism 25, and a connection mechanism 26.

[0029] Here, Fig. 2 is an enlarged view of the connection mechanism 26. Also, Fig. 2(a) is a side cross-sectional view of the connection mechanism 26, and Fig. 2(b) is a front view of the connection mechanism 26.

[0030] As shown in FIG. 1, the floor contact portion 21 is located at the lower end of the fence post 20 and comes into contact with the floor surface 101. In this embodiment, the center of the contact surface of the floor contact portion 21 that comes into contact with the floor surface 101 coincides with the axis 63 of the fence post 20 (see FIG. 2(a)). However, the center of the contact surface may be offset from the axis 63 of the fence post 20. For example, the floor contact portion 21 may be L-shaped, and the portion including the contact surface may extend from the axis 63 of the fence post 20 towards the inside in the width direction of the fence 100.

[0031] The ceiling contact portion 22 is located at the upper end portion of the fence post 20 and comes into contact with the ceiling 102. In this embodiment, the center of the contact surface of the ceiling contact portion 22 that comes into contact with the ceiling 102 coincides with the axis 63 of the fence post 20. However, the center of the contact surface may be offset from the axis 63 of the fence post 20. For example, the ceiling contact portion 22 may be L-shaped, and the portion including the contact surface may extend from the axis 63 of the fence post 20 towards the inside in the width direction of the fence 100.

[0032] The fixed pole 23 extends upward from the floor contact portion 21, and its lower end portion is connected to the floor contact portion 21. As shown in FIG. 2(a), the fixed pole 23 has a cylindrical fixed pole main body 31 and a fixed pole insertion portion 32 located at the upper end portion of the fixed pole 23. The fixed pole insertion portion 32 is inserted into a tubular member 60 of the connection mechanism 26, which will be described later. The fixed pole 23 may also be shaped like a rectangular pillar.

[0033] The movable pole 24 extends downward from the ceiling contact portion 22, and its upper end portion is connected to the ceiling contact portion 22. As shown in FIG. 2(a), the movable pole 24 has a cylindrical movable pole main body 41 and a movable pole inserting portion 42 located at the lower end portion of the movable pole 24. The movable pole inserting portion 42 is inserted into a tubular member 60 of the connection mechanism 26, which will be described later. The movable pole 24 may be shaped like a square pillar, for example.

[0034] 1, the movable pole 24 has an outer tubular portion 43 and an inner tubular portion 44. The outer diameter of the inner tubular portion 44 is smaller than the inner diameter of the outer tubular portion 43, and a portion of the inner tubular portion 44 is inserted into the outer tubular portion 43. This allows the inner tubular portion 44 to move in the axial direction (up and down direction) relative to the outer tubular portion 43 within the outer tubular portion 43. By changing the position of the inner tubular portion 44 relative to the outer tubular portion 43, the length of the movable pole 24 can be adjusted.

[0035] In this embodiment, the inner cylinder portion 44 is fixed to the ceiling contact portion 22, but the outer cylinder portion 43 may be fixed to the ceiling contact portion 22. The positional relationship between the fixed pole 23 and the movable pole 24 may be reversed from that in this embodiment. In other words, the fixed pole 23 may extend downward from the ceiling contact portion 22, and the movable pole 24 may extend upward from the floor surface contact portion 21.

[0036] The length setting mechanism 25 is a mechanism for arbitrarily setting the length of the movable pole 24. Specifically, the setting mechanism 25 limits the movement of the inner tube portion 44 relative to the outer tube portion 43 when the user operates the setting unit 51. The user changes the relative position of the inner tube portion 44 with respect to the outer tube portion 43, and after adjusting the movable pole 24 to the arbitrarily set length, operates the setting unit 51 to limit the movement of the inner tube portion 44 relative to the outer tube portion 43. This allows the movable pole 24 to be set to the arbitrarily set length.

[0037] The method for restricting the movement of the inner cylindrical portion 44 relative to the outer cylindrical portion 43 is not particularly limited, and any known method can be used. For example, the movement of the inner cylindrical portion 44 may be restricted by tightening the inner cylindrical portion 44 by reducing the inner diameter of the outer cylindrical portion 43, or the movement of the inner cylindrical portion 44 may be restricted by engaging a locking portion provided on the outer cylindrical portion 43 with a locked portion provided on the inner cylindrical portion 44.

[0038] In the fence post 20 of this embodiment, only the length of the movable pole 24 can be set arbitrarily, but it is also possible to set arbitrarily both the length of the fixed pole 23 and the length of the movable pole 24, or to set arbitrarily only the length of the fixed pole 23. Furthermore, the height position of the length setting mechanism 25 (setting unit 51) is not particularly limited, but it may be, for example, at a height position of about 110 to 160 cm above the floor surface 101.

[0039] The connection mechanism 26 is a mechanism that connects the fixed pole 23 and the movable pole 24. The height position of the connection mechanism 26 is not particularly limited, but may be, for example, a height position of about 80 to 100 cm above the floor surface 101. The details of the connection mechanism 26 will be described below.

[0040] (Connection mechanism) Next, a detailed description will be given of the connection mechanism 26. As shown in FIG.

[0041] <Cylindrical member> The tubular member 60 is a tubular member that is open at the top and bottom. The tubular member 60 of this embodiment has a cylindrical shape. As shown in Fig. 2(b), an opening 61 extending in the vertical direction is formed in the vertical center of the tubular member 60.

[0042] Fig. 3 is a cross-sectional view taken along the line III-III in Fig. 2(a). As shown in Fig. 3, fixing grooves 62 are formed on the inner peripheral surface of the lower portion of the tubular member 60. In this embodiment, four fixing grooves 62 are formed on the inner peripheral surface of the tubular member 60. Each fixing groove 62 is formed at 90 degree intervals in the circumferential direction around the axis 63 of the tubular member 60. Each fixing groove 62 extends upward from the lower end of the tubular member 60 in the vertical direction and has a predetermined length.

[0043] Furthermore, the fixed pole inserting portion 32 inserted into the tubular member 60 has a protrusion 33 formed at a circumferential position corresponding to the fixing groove 62. When the fixed pole inserting portion 32 is inserted into the tubular member 60 with this protrusion 33 inserted into the fixing groove 62, the fixed pole inserting portion 32 stops when the protrusion 33 reaches the end of the fixing groove 62. In this way, the tubular member 60 is fixed to the fixed pole 23.

[0044] However, the structure for fixing the tubular member 60 to the fixed pole 23 is not limited to this. For example, a female thread may be formed on the inner peripheral surface of the tubular member 60 and a male thread may be formed on the outer peripheral surface of the fixed pole insertion portion 32, and the fixed pole 23 may be fastened to the tubular member 60 to fix the tubular member 60 to the fixed pole 23. Alternatively, the tubular member 60 may be fixed to the fixed pole 23 by press-fitting the fixed pole insertion portion 32 into the tubular member 60.

[0045] FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. 2(a). As shown in FIG. 4, guide grooves 64 are formed on the inner peripheral surface of the upper portion of the cylindrical member 60. In this embodiment, four guide grooves 64 are formed on the inner peripheral surface of the cylindrical member 60. Each guide groove 64 is formed at 90-degree intervals in the circumferential direction around the axis 63 of the cylindrical member 60. Each guide groove 64 extends downward from the upper end of the cylindrical member 60 in the vertical direction and has a predetermined length. In this embodiment, four guide grooves 64 are formed on the inner peripheral surface of the cylindrical member 60, but the number of guide grooves 64 is not limited. For example, one guide groove 64 may be formed on the inner peripheral surface of the cylindrical member 60.

[0046] Furthermore, the movable pole insertion part 42 inserted into the cylindrical member 60 has a protrusion 45 formed at a circumferential position corresponding to the guide groove 64. When this protrusion 45 is inserted into the guide groove 64, the movable pole insertion part 42 (movable pole 24) is restricted from rotating around the central axis, but is allowed to move in the vertical direction. Therefore, the cylindrical member 60 can hold the movable pole 24 so that it can move in the vertical direction.

[0047] As described above, in this embodiment, the guide groove 64 is formed on the inner peripheral surface of the tubular member 60, and the protrusion 45 is formed on the outer peripheral surface of the movable pole insertion portion 42. However, the protrusion 45 may be formed on the inner peripheral surface of the tubular member 60, and the guide groove 64 may be formed on the outer peripheral surface of the movable pole insertion portion 42. Even in this case, the tubular member 60 can hold the movable pole 24 movably in the up and down direction.

[0048] Furthermore, the inner peripheral surface of the tubular member 60 and the outer peripheral surface of the movable pole insertion portion 42 may have corresponding polygonal cross-sectional shapes. For example, the inner peripheral surface of the tubular member 60 and the outer peripheral surface of the movable pole insertion portion 42 may both be quadrilateral. Even in this case, the tubular member 60 can hold the movable pole 24 movably in the up and down direction.

[0049] <Lever component> The lever member 70 is attached to the tubular member 60 via a support member 80. In this embodiment, the support member 80 extends horizontally within the tubular member 60 and rotatably supports the lever member 70. Therefore, the lever member 70 rotates around a rotation axis 81 that coincides with the axis of the support member 80. Note that the support member 80 is formed of a columnar member that penetrates the tubular member 60, but it may also be formed of a bolt that penetrates the tubular member 60. Furthermore, the lever member 70 and the support member 80 may be formed integrally, and the support member 80 may be rotatably supported by the tubular member 60.

[0050] 5 and 6 are enlarged views of the connection mechanism 26, similar to Fig. 2. Also, Fig. 5(a) and Fig. 6(a) are side cross-sectional views of the connection mechanism 26, and Fig. 5(b) and Fig. 6(b) are front views of the connection mechanism 26. However, while Fig. 2 shows the lever member 70 in the first angular position, Fig. 5 shows the lever member 70 in the third angular position, and Fig. 6 shows the lever member 70 in the second angular position.

[0051] In this embodiment, the lever member 70 rotates between a "first angular position" as shown in Fig. 2 and a "second angular position" as shown in Fig. 6. However, when the lever member 70 rotates from the first angular position to the second angular position, the lever member 70 passes through a "third angular position" as shown in Fig. 5. The angular difference between the second angular position and the third angular position when the rotation axis 81 is the center is, for example, 5 to 30 degrees.

[0052] As shown in FIG. 2, the lever member 70 includes a cam portion 71 and an operating portion 72.

[0053] The cam portion 71 is located inside the cylindrical member 60 and contacts the end face (lower end face) of the movable pole 24. The shape of the cam portion 71 is not particularly limited, but the cam portion 71 in this embodiment has an egg-shaped shape when viewed from the direction in which the rotation shaft 81 extends. In addition, the support member 80 penetrates the cam portion 71. When the lever member 70 rotates from the first angular position (the position shown in FIG. 2) through the third angular position (the position shown in FIG. 5) toward the second angular position (the position shown in FIG. 6), the cam portion 71 contacts the end face of the movable pole 24 and presses the end face upward. As a result, the movable pole 24 moves upward relative to the cylindrical member 60.

[0054] Here, as shown in FIG. 2, the vertical distance from the pivot shaft 81 to the contact point between the cam portion 71 and the end face of the movable pawl 24 when the lever member 70 is in the first angular position is defined as a "first distance D1." Similarly, as shown in FIG. 6, the vertical distance from the pivot shaft 81 to the contact point between the cam portion 71 and the end face of the movable pawl 24 when the lever member 70 is in the second angular position is defined as a "second distance D2." Furthermore, as shown in FIG. 5, the vertical distance from the pivot shaft 81 to the contact point between the cam portion 71 and the end face of the movable pawl 24 when the lever member 70 is in the third angular position is defined as a "third distance D3." In this case, the second distance D2 is greater than the first distance D1, and the third distance D3 is greater than the second distance D2.

[0055] Therefore, when the lever member 70 rotates from the first angular position (FIG. 2) toward the third angular position (FIG. 5), the movable pole 24 moves upward relative to the tubular member 60 in response to this rotation (see the thick arrow in FIG. 5). Then, when the lever member 70 further rotates from the third angular position (FIG. 5) toward the second angular position (FIG. 6), the movable pole 24 moves slightly downward relative to the tubular member 60 in response to this rotation (see the thick arrow in FIG. 6).

[0056] As shown in Fig. 2, when the lever member 70 is in a first angular position, the portion where the cam portion 71 and the end face of the movable pole 24 come into contact is farther from the operating portion 72 (opening 61) than the rotation axis 81. Also, as shown in Fig. 6, when the lever member 70 is in a second angular position, the portion where the cam portion 71 and the end face of the movable pole 24 come into contact is closer to the operating portion 72 (opening 61) than the rotation axis 81. Furthermore, as shown in Fig. 5, when the lever member 70 is in a third angular position, the portion where the cam portion 71 and the end face of the movable pole 24 come into contact is located on the rotation axis 81.

[0057] Furthermore, the rotation shaft 81 in this embodiment is located outside the axis 63 of the cylindrical member 60. In other words, the rotation shaft 81 is located closer to the opening 61 than the axis 63 of the cylindrical member 60. Therefore, according to this embodiment, the maximum distance from the rotation shaft 81 to the end of the cam portion 71 can be made larger than when the rotation shaft 81 is located on the axis 63 of the cylindrical member 60. As a result, the cam portion 71 can press strongly against the end face of the movable pole 24.

[0058] The operating portion 72 is a portion that is operated by the user, and is connected to the cam portion 71. In this embodiment, the operating portion 72 is connected to the cam portion 71 via a connection portion 73. The lever member 70 passes through the opening 61, and the operating portion 72 is located outside the tubular member 60. It is sufficient that at least a portion of the operating portion 72 is located outside the tubular member 60. In this embodiment, when the lever member 70 is in the first angular position (the position shown in FIG. 2), the operating portion 72 extends substantially horizontally.

[0059] On the other hand, when the lever member 70 is in the second angular position (the position shown in FIG. 6 ), the operating portion 72 extends substantially vertically. That is, the operating portion 72 extends parallel to the tubular member 60. Furthermore, the operating portion 72 of this embodiment is plate-shaped and curved when viewed from the direction in which the operating portion 72 extends (see FIG. 2(b)). More specifically, when the lever member 70 is in the second angular position, the operating portion 72 has a shape that curves along the outer circumferential surface of the tubular member 60. Therefore, when the lever member 70 is in the second angular position, the operating portion 72 can be prevented from protruding in the horizontal direction. As a result, the operating portion 72 is less likely to get caught on the opening and closing door 11 when opening or closing it, and is less likely to get caught on a user when the user passes near the fence 100. That is, the operating portion 72 is less likely to get in the way.

[0060] 6, when the lever member 70 is in the second angular position, the tip portion of the operating part 72 is shaped to bend outward. In other words, the tip portion of the operating part 72 is spaced apart from the outer peripheral surface of the tubular member 60. Therefore, when returning the lever member 70 from the second angular position to the first angular position, for example, the user can easily grasp and operate the operating part 72 of the lever member 70 in the second angular position.

[0061] In this embodiment, one lever member 70 is attached to one tubular member 60. However, if the outer diameter or one side of the cross section of the tubular member 60 is large (if the outer diameter or one side of the cross section of the movable pole 24 is large), multiple lever members 70 may be attached to one tubular member 60.

[0062] (Installation method and effects) Next, the installation method and effects of the fence 100 according to this embodiment will be described. When installing the fence 100, the user first positions the lever member 70 at the first angle position. In this state, the user sets the length of the movable pole 24 (i.e., the length of the fence post 20) using the length setting mechanism 25 so that the floor contact portion 21 contacts the floor surface 101 and the ceiling contact portion 22 contacts the ceiling 102. The user then operates the operating unit 72 to rotate the lever member 70 from the first angle position, passing through the third angle position, toward the second angle position. This pushes up the movable pole 24, and presses the fence post 20 against the floor surface 101 and the ceiling 102. As a result, the fence post 20 is fixed between the floor surface 101 and the ceiling 102 so that it is tensioned. By fixing the fence post 20 in this manner, the fence 100 is installed.

[0063] In this embodiment, the lever member 70 can be used to press the fence post 20 against the floor 101 and the ceiling 102 with great force, allowing the fence post 20 to be firmly fixed between the floor 101 and the ceiling 102. Furthermore, in this embodiment, the fence post 20 can be formed using a small number of parts, allowing the fence post 20 to have an extremely simple configuration. Therefore, this embodiment can provide a fence 100 that can be firmly fixed between the floor 101 and the ceiling 102 and is equipped with a fence post 20 that has a simple structure.

[0064] Furthermore, in this embodiment, the vertical distance from the pivot shaft 81 to the point where the cam portion 71 and the end face of the movable pole 24 contact is greater when the lever member 70 is in the third angular position than when it is in the second angular position (the third distance D3 is greater than the second distance D2). Therefore, to rotate the lever member 70 from the second angular position to the third angular position in order to release the fence post 20, the movable pole 24 must be moved "away from" the pivot shaft 81. However, when the fence post 20 is fixed between the floor 101 and the ceiling 102, a force is applied to the movable pole 24 in the "direction toward" the pivot shaft 81, so the lever member 70 remains in the second angular position. In other words, the fence post 20 of this embodiment is difficult to remove once fixed. [Explanation of symbols]

[0065] 10 Fence body 20 Fence Post 21 Floor contact part 22 Ceiling contact part 23 Fixed pole 24 Movable pole 25 Length setting mechanism 26 Connection mechanism 45 Protrusion 51 Setting section 60 Cylinder member 63 Axis center 64 Guide groove 70 Lever member 71 Cam section 72 Operation section 81 Rotating shaft 100 Fence 101 Floor 102 Ceiling

Claims

1. The fence body and a fence post supporting the fence body, The fence post is a floor contact portion that contacts the floor surface; a ceiling contact portion that contacts the ceiling; a fixed pole extending in a vertical direction from one of the floor contact portion and the ceiling contact portion; a movable pole extending in a vertical direction from the other of the floor contact portion and the ceiling contact portion; a connection mechanism that connects the fixed pole and the movable pole, the connection mechanism includes a tubular member that is fixed to the fixed pole and holds the movable pole movably in an up-and-down direction, and a lever member that is attached to the tubular member so as to rotate between a first angular position and a second angular position around a rotation axis that extends horizontally, The lever member includes a cam portion located inside the tubular member and contacting and pressing the end face of the movable pole when the lever member rotates from the first angular position toward the second angular position, and an operating portion connected to the cam portion and at least a portion of which is located outside the tubular member.

2. When the lever member rotates from the first angular position to the second angular position, the lever member passes through a third angular position that is just before the second angular position, 2. The fence of claim 1, wherein the vertical distance from the pivot shaft to the point where the cam portion and the end face of the movable pole contact is greater when the lever member is in the second angular position than when the lever member is in the first angular position, and is greater when the lever member is in the third angular position than when the lever member is in the second angular position.

3. 3. A fence as described in claim 1 or 2, wherein a guide groove extending in the vertical direction is formed on one of the inner surface of the tubular member and the outer surface of the portion of the movable pole held by the tubular member, and a protrusion to be inserted into the guide groove is formed on the other.

4. 3. The fence according to claim 1, wherein an inner peripheral surface of the tubular member and an outer peripheral surface of the portion of the movable pole held by the tubular member have corresponding polygonal cross-sectional shapes.

5. 5. The fence according to claim 1, wherein the rotation shaft is located outside an axis of the cylindrical member.

6. The fence according to claim 1 , wherein the operating portion is formed so as to be parallel to the tubular member when the lever member is in the second angular position.

7. 7. The fence according to claim 6, wherein the tubular member is cylindrical, and the operating portion has a shape that curves along the outer peripheral surface of the tubular member when the lever member is in the second angular position.

8. 8. The fence according to claim 1, wherein the fence posts further include a length setting mechanism that enables the lengths of the fixed pole and / or the movable pole to be set arbitrarily.

Images