JP2018193760A - Support leg constituting movable fence - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a support leg constituting a moving fence having good recyclability and disposal work efficiency and in which a portion to be attached to a holding member is not likely to be crushed when a holding member for holding a long object is attached. thing. SOLUTION: The tubular member 5 is made of a synthetic resin formed by blow molding, and a predetermined range of a center line formed by connecting the centers of a first hole 30 and a second hole 31 is formed. A state in which the tubular member 5 is arranged in the space 2a in a posture surrounded by the inner wall 54, and the bolt 47 is inserted through the tubular member 5 arranged in the space 2a in that posture. The tip 47a of the bolt 47 is configured to protrude from the second hole 31 so that the hexagon nut 6 can be fastened. [Selection diagram] FIG. 7

Description

  In the present invention, a long object is bridged between support legs arranged opposite to each other, and a holding member for holding the long object constitutes a moving fence attached to each support leg. Regarding support legs.

  Conventionally, as a support leg that constitutes this type of moving fence, a structure in which a bolt is insert-molded when the support leg is blow-molded and a holding member is attached to the bolt protruding from the support leg is known (patent) Reference 1).

Japanese Patent No. 4603182

  However, in the conventional device described above, the bolt is insert-molded when the support leg is blow-molded, and the bolt is integrated with the support leg. Because it has to be taken out, the recyclability is bad. Also, when the support legs are separated by material and discarded, the efficiency of the disposal work is poor because the support legs must be cut and the bolts taken out.

Further, as the above-described holding member, if a holding member having a structure in which the horizontal portion of the support leg is held by a U-shaped member when viewed from the side and the members protruding from the horizontal portion are fastened by bolts and nuts, The bolt can be removed from the support leg without cutting the support leg.
However, since the blow-molded support legs are hollow inside, the portion held by the U-shaped member is crushed by fastening the bolts and nuts.

  Therefore, the present invention was created to solve the above-mentioned problems, has good recyclability and disposal work efficiency, and when attaching a holding member for holding a long object, It is an object of the present invention to provide a support leg that constitutes a moving fence in which a portion to which a holding member is attached is not crushed.

  In order to achieve the above-mentioned object, the support legs constituting the moving fence of the present invention are such that long objects are bridged between the support legs arranged to face each other, and the holding legs are held. The member is a support leg constituting a moving fence attached to each support leg, and the support leg is made of synthetic resin formed by blow molding. Moreover, the cylindrical member which can insert the bolt member for attaching a holding member is provided. Furthermore, it is opposed to each other with a space, and includes a pair of walls for attaching the holding member, and a pair of opposed holes formed through the pair of walls. Further, at least one of the pair of holes is formed so that a cylindrical member can be inserted from one opening end thereof, and a predetermined range of a center line formed by connecting the centers of the pair of holes is cylindrical. The cylindrical member is configured to be disposed in the space in a posture surrounded by the inner wall of the member. Further, in a state where the bolt member is inserted into the cylindrical member arranged in the space in the above posture, the tip of the bolt member is projected from one of the pair of holes so that the nut member can be fastened. It is configured. The above is the first feature.

If the nut member fastened to the tip of the bolt member is removed, the bolt member can be extracted from the support leg.
Therefore, it is not necessary to cut the support leg and take out the bolt member, so that the recyclability can be improved. Further, even when the support legs are separated and discarded according to the material, it is not necessary to cut the support legs and take out the bolt members, so that the disposal work efficiency can be improved.
Moreover, at least one of the pair of holes is formed so that a cylindrical member can be inserted from one open end thereof, and a predetermined range of a center line formed by connecting the centers of the pair of holes is cylindrical. Since the cylindrical member is arranged in the space in a posture surrounded by the inner wall of the member, the cylindrical member can be taken out from the hole inserted from one open end.
Therefore, when the support leg and the cylindrical member are formed of different materials, there is no need to cut the support leg and take out the cylindrical member, so that recyclability can be improved. Further, even when the support legs are separated by material and discarded, it is not necessary to cut the support legs and take out the cylindrical member, so that the disposal work efficiency can be improved.
Furthermore, a predetermined range of a center line formed by connecting the centers of the pair of holes is configured such that the cylindrical member is disposed in the space in a posture surrounded by the inner wall of the cylindrical member. When the nut member is fastened to the tip of the bolt member protruding from one of the pair of holes, the cylindrical member functions like a reinforcing rib provided between the pair of opposing walls. There is no risk of the walls of the house being crushed.

  Further, in the first feature described above, the support leg constituting the moving fence of the present invention is formed such that any one of the pair of holes can insert a cylindrical member from one opening end thereof, The second feature is that the diameter of the hole facing one of the pair of holes is smaller than the diameter of the cylindrical member.

  One of the pair of holes, that is, the diameter of the hole opposite to the hole into which the cylindrical member can be inserted from one opening end thereof is smaller than the diameter of the cylindrical member, so that the cylindrical shape arranged in the space There is no possibility that the member falls out of the other hole (a hole opposite to the hole into which the cylindrical member can be inserted from one open end).

  Further, in the first or second feature described above, the support leg constituting the moving fence of the present invention is configured such that a part of the outer peripheral surface of the cylindrical member disposed in the space is a pair of holes. A third characteristic is that the posture further includes a state surrounded by at least one inner wall.

Part of the outer peripheral surface of the cylindrical member disposed in the space is surrounded by at least one inner wall of the pair of holes by a simple operation of inserting the cylindrical member into one hole from one open end thereof. Since the cylindrical member is positioned in the state, the holding member can be attached simply by fastening the nut member to the tip of the bolt member protruding from one of the pair of holes.
Therefore, it is possible to improve the mounting work efficiency of the holding member.

  Further, the supporting leg constituting the moving fence of the present invention is characterized in that, in the above-described one of the first to third features, one of the opening ends of the cylindrical member is positioned at the opening end of the one of the cylindrical members. 4th characteristic that it is the attitude | position which has further the state contact | abutted to the inner surface facing the wall located in the direction of the other opening end of the cylindrical member among the surfaces which form the wall located in the direction. .

  One open end of the tubular member is in contact with the inner surface facing the wall located toward the other open end of the tubular member, of the surfaces forming the wall located toward the one open end. Therefore, by fastening the nut member to the tip of the bolt member protruding from one of the pair of holes, the nut member and the one opening end of the tubular member hold the wall located toward the one opening end. Therefore, the mounting strength of the holding member with respect to the support leg can be increased.

  If the support legs constituting the moving fence of the present invention are implemented, the recyclability and the disposal work efficiency are good, and when the holding member for holding the long object is attached, the part to which the holding member is attached may be crushed. It is possible to provide a support leg that constitutes a movable fence without a gap.

It is a perspective view of the movement fence which has the support leg which comprises the movement fence which concerns on embodiment of this invention. (A) is an expansion perspective view of the support leg shown in FIG. 1, (b) is an expansion perspective view which shows the side wall on the opposite side of the support leg shown to (a). FIG. 3 is an enlarged perspective view of a state in which a holding member is attached to the support leg shown in FIG. It is explanatory drawing which shows the longitudinal cross-section of the upper part of the support leg shown in FIG. 3, and a holding member. It is explanatory drawing of a holding member and a cylindrical member. It is a longitudinal cross-sectional view of a part of the first and second walls constituting the upper beam portion of the support leg. It is a longitudinal cross-sectional view which shows the state by which the holding member and the cylindrical member were attached to the upper beam part shown in FIG. It is a longitudinal cross-sectional view which expands and shows the vicinity of the 1st hole shown in FIG.

The support leg which comprises the moving fence which concerns on embodiment of this invention is demonstrated referring a figure.
[Moving fence structure]
First, the structure of the moving fence which has the support leg which comprises the moving fence which concerns on embodiment of this invention is demonstrated, referring a figure. FIG. 1 is a perspective view of a moving fence having support legs constituting the moving fence according to the embodiment of the present invention.

  As shown in FIG. 1, the moving fence 1 includes support legs 2, 2 arranged opposite to each other, pipes 3, 3 bridged between the support legs 2, and each pipe 3 connected to each support leg 2. A total of four holding members 4. Holding members 4 are respectively attached to the upper beam portions 23 of the uppermost portions of the support legs 2, and both ends of the upper pipe 3 are held by the holding members 4. The holding members 4 are also attached to the lower beam portions 25 of the support legs 2, and both ends of the lower pipe 3 are held by the holding members 4. In this embodiment, each pipe 3 has a circular cross section perpendicular to the central axis.

[Structure of holding member and cylindrical member]
Next, the holding member and the cylindrical member will be described with reference to FIG. FIG. 5 is an explanatory view of the holding member and the cylindrical member.
As shown in FIG. 5, the holding member 4 includes a base member 41, a pressing member 42, shafts 43 and 44, and bolts 45. The back surface 41 a of the base member 41 is a surface supported by the first wall 23 a (FIG. 1) of the upper beam portion 23 of the support leg 2 or the first wall 25 a of the lower beam portion 25. An insertion hole 47b through which a bolt 47 for attaching the holding member 4 to the support leg 2 is inserted is formed in the back surface 41a of the base member 41, and the bolt 47 is inserted into the insertion hole 47b. The bolt 47 protrudes from the back surface 41a so as to hang from the back surface 41a. The head of the bolt 47 (not shown in the figure) is disposed on the surface opposite to the back surface 41a, and the bolt 47 prevents the bolt 47 from coming off. A holding part 46 for holding the pipe 3 is formed on the back surface of the pressing member 42. The holding part 46 is formed in an arc shape corresponding to the shape of the peripheral surface of the pipe 3. The holding member 42 is pivotally supported on the base member 41 by a shaft 43. Further, a gripping portion 48 for gripping the pipe 3 is formed in a portion of the base member 41 facing the pressing member 42. The holding part 48 is formed in an arc shape corresponding to the shape of the peripheral surface of the pipe 3.

The base portion of the bolt 45 is joined to the peripheral surface of the shaft 44 inserted through the base member 41, and can swing around the shaft 44. Further, the bolt 45 is inserted into a long hole (not shown) formed in the front end portion 42 a of the pressing member 42. That is, the front end portion 42a of the pressing member 42 is lifted, the pressing member 42 is rotated outward with the shaft 43 as the center of rotation, the bolt 45 is operated, and the shaft 44 is used as an axis. It is possible to swing the inside of the long hole so that the bolt 45 is opened outward. When the pipe 3 is held by the holding member 4, the front end portion 42 a of the pressing member 42 is lifted, the pipe 3 is inserted between the holding portion 46 of the holding member 42 and the holding portion 48 of the base member 41, and the bolt 45 is inserted. A nut member (not shown) is fastened.
The support leg 2 includes a tubular member 5. In this embodiment, the cylindrical member 5 has a circular cross section perpendicular to the central axis. The tubular member 5 is provided in the internal space of the upper beam portion 23 (FIG. 1) and the lower beam portion 25 so as to be able to be taken out, and is held when the holding member 4 is attached to the upper beam portion 23 and the lower beam portion 25, respectively. The portion held by the member 4 serves to prevent the portion from being crushed. The cylindrical member 5 is formed in a cylindrical shape with both ends opened, and a bolt insertion hole 55 for inserting a bolt 47 is formed between one opening end 53 and the other opening end 52. Has been.
In this embodiment, the holding member 4 is made of a metal such as iron, and the cylindrical member 5 is made of a synthetic resin such as vinyl chloride.

[Structure of support legs]
Next, the structure of the support leg which comprises the movement fence which concerns on embodiment of this invention is demonstrated, referring a figure. 2A is an enlarged perspective view of the support leg shown in FIG. 1, and FIG. 2B is an enlarged perspective view showing a side wall on the opposite side of the support leg shown in FIG. FIG. 3 is an enlarged perspective view of a state in which a holding member is attached to the support leg shown in FIG.

  As shown in FIGS. 2 and 3, the support leg 2 is formed in such a shape that when viewed from the side, a horizontal bar is added to the letter A and the upper end is formed flat. In other words, the upper end has a flat mountain shape and is formed in a shape having two horizontal beams. The support leg 2 includes a first leg 21, a second leg 22, an upper beam part 23 formed between the upper ends of the first leg 21 and the second leg 22, and a first leg A lower beam part 25 formed between the lower part of the leg part 21 and the second leg part 22, and an upper beam part 23 and a lower beam part 25 between the first leg part 21 and the second leg part 22. And a middle beam portion 24 formed between the two. The middle beam portion 24 includes an upper wall 24a constituting an upper wall and a lower wall 24b constituting a lower wall. An upper opening portion 26 is formed between the upper beam portion 23 and the middle beam portion 24, and a lower opening portion 27 is formed between the middle beam portion 24 and the lower beam portion 25.

  The first leg 21 has an end formed between the side wall 21a (FIG. 2A), the side wall 21b (FIG. 2B) opposite to the side wall 21a, and the outer edges of the side walls 21a and 21b. It has a wall 21c and a bottom wall 21d (FIG. 2B). The second leg portion 22 is formed between the side wall 22a (FIG. 2 (a)), the side wall 22b (FIG. 2 (b)) opposite to the side wall 22a, and the outer edges of the side walls 22a and 22b. And an end wall 22c and a bottom wall 22d. The bottom walls 21 d and 22 d are portions that are grounded to the grounding surface of the moving fence 1.

Here, the structure of the upper beam portion 23 and the lower beam portion 25 will be described with reference to the drawings.
FIG. 4 is an explanatory view showing a vertical section of the upper portion of the support leg shown in FIG. 3 and a holding member. FIG. 6 is a longitudinal sectional view of a part of the first and second walls constituting the upper portion of the support leg. 7 is a longitudinal sectional view showing a state in which the holding member and the cylindrical member are attached to the upper beam portion shown in FIG. FIG. 8 is an enlarged longitudinal sectional view showing the vicinity of the first hole shown in FIG.
In addition, since the basic structure of the upper beam part 23 and the lower beam part 25 is the same, here, the structure of the upper beam part 23 will be described as a representative.

As shown in FIGS. 4 and 6, the upper beam portion 23 of the support leg 2 is separated from the first wall 23a constituting the uppermost wall of the support leg 2, and the first wall 23a is separated from the space 2a. And a second wall 23b provided. The first wall 23a and the second wall 23b are parallel to each other. A first hole 30 for inserting one open end 53 (FIG. 5) of the tubular member 5 is formed through the first wall 23a. A second hole 31 is formed through the second wall 23 b so as to face the first hole 30. In addition, in FIG. 4, since the state cut | disconnected by the line which passes through each center of the 1st hole 30 and the 2nd hole 31 is represented, the 1st hole 30 and the 2nd hole 31 are each shown only half. Has been.
As shown in FIG. 6, when the cylindrical member 5 is inserted into the first hole 30 from one opening end 53 thereof, the one opening end 53 faces downward and the other opening end 52 faces upward. Arranged in the space 2a. Further, the cylindrical member 5 has a posture in which a predetermined range of a center line C1 formed by connecting the centers of the first hole 30 and the second hole 31 is surrounded by the inner wall 54 of the cylindrical member 5. In the space 2a. In other words, the cylindrical member 5 is disposed in the space 2a so that its center axis coincides with the center line C1 or along the center line C1.

As shown in FIGS. 6 and 7, the diameter of the second hole 31 is smaller than the diameter of the cylindrical member 5. Thereby, there is no possibility that the cylindrical member 5 falls out of the second hole 31. Further, one open end 53 of the cylindrical member 5 is in contact with an inner surface 23b2 of the second wall 23b that faces the inner surface 23a2 of the first wall 23a. In other words, one opening end 53 of the cylindrical member 5 is in contact with an inner surface 23b2 that is in contact with the space 2a among the surfaces that form the second wall 23b that is located toward the one opening end 53. That is, one open end 53 of the cylindrical member 5 is supported by the inner surface 23b2 of the second wall 23b.
Further, as shown in FIG. 8, the outer peripheral surface 51 in the vicinity of the other opening end 52 of the outer peripheral surface 51 of the cylindrical member 5 arranged in the space 2 a in the above posture is the first hole 30. It is in a state surrounded by the inner wall 30a.
For this reason, even if the support leg 2 is inclined, the outer peripheral surface 51 near the other opening end 52 abuts on the inner wall 30a of the first hole 30, and the cylindrical member 5 moves in the horizontal direction. Therefore, the posture of the cylindrical member 5 in the space 2 a can be maintained without the other opening end 52 being detached from the first hole 30.
Therefore, there is no possibility that the bolt 47 cannot be inserted into the cylindrical member 5 due to the displacement of the cylindrical member 5.

Further, when the cylindrical member 5 is inserted into the first hole 30 from one opening end 53, the one opening end 53 is supported by the inner surface 23b2 of the second wall 23b and in the vicinity of the other opening end 52. The outer peripheral surface 51 is in a state surrounded by the inner wall 30a of the first hole 30, and the cylindrical member 5 is in a state of being stably disposed without any risk of displacement. That is, the cylindrical member 5 can be easily positioned in the space 2 a by a simple operation of inserting the cylindrical member 5 into the first hole 30 from the one open end 53.
As shown in FIG. 8, a gap W <b> 1 is formed between the outer peripheral surface 51 of the cylindrical member 5 and the inner wall 30 a of the first hole 30. That is, the diameter of the first hole 30 is slightly larger than the diameter of the cylindrical member 5, and the cylindrical member 5 can be easily inserted into the first hole 30.
Moreover, since the diameter of the 1st hole 30 is larger than the diameter of the cylindrical member 5, and the cylindrical member 5 is arrange | positioned in the space 2a in the state when inserted from the 1st hole 30, it is a support leg. If 2 is set upside down, the tubular member 5 falls out of the first hole 30, so that the tubular member 5 can be easily taken out.

Here, a method of forming the first hole 30 and the second hole 31 will be described. Using a drilling device such as a drilling machine, first, a hole having the same size as the second hole 31 is drilled in the first wall 23a, and then the second hole 31 is drilled in the second wall 23b. Next, using a drilling device such as a drilling machine having a drill having a diameter larger than the drill used when drilling the second hole 31, the diameter of the hole formed through the first wall 23a is increased, 1 hole 30 is formed.
The bolt 47 is inserted from the first hole 30 into the cylindrical member 5 disposed in the space 2 a, and the tip 47 a protrudes downward from the second hole 31. Each support leg 2 is formed by blow molding, and is made of a synthetic resin such as polyethylene.

  When the holding member 4 is fixed to the outer surface 23a1 of the first wall 23a, as shown in FIG. 7, the washer 8 is inserted from the tip 47a of the bolt 47 protruding from the second hole 31, and the spring washer 7 is further inserted. The hexagon nut 6 is fastened to the tip 47a. At this time, the washer 8 comes into contact with the outer surface 23b1 of the second wall 23b, and the second wall 23b is held between the one open end 53 of the tubular member 5 and the washer 8. For this reason, when the fastening with the hexagon nut 6 is advanced, the one open end 53 of the cylindrical member 5 bites into the inner surface 23b2 of the second wall 23b, so that the attitude of the cylindrical member 5 is stabilized. The attachment strength of the holding member 4 can be increased.

  Further, as shown in FIG. 8, a step H <b> 1 is formed between the other opening end 52 of the cylindrical member 5 and the outer edge 30 b of the first hole 30. For this reason, when the first wall 23a is deformed downward by the step H1, the other open end 52 of the cylindrical member 5 comes into contact with the back surface 41a (FIGS. 5 and 7) of the base member 41 of the holding member 4. Excessive deformation of the first wall 23a is prevented. In other words, when the hexagon nut 6 is fastened to the tip 47a of the bolt 47 of the holding member 4, the downward deformation of the first wall 23a is absorbed by the step H1.

  Further, as shown in FIG. 2A, the first hole 30 is also formed through the first wall 25a constituting the lower beam portion 25, and as shown in FIG. The second hole 31 is also formed through the wall 25b. The holding member 4 is attached to the first wall 25a of the lower beam portion 25 by the same procedure as that for attaching to the upper beam portion 23. That is, the cylindrical member 5 is inserted into the first hole 30 from one open end 53, the bolt 47 of the holding member 4 is inserted into the cylindrical member 5, and the washer is inserted into the tip 47 a protruding from the second hole 31. 8 and the spring washer 7 are inserted, and the hexagon nut 6 is fastened to the tip 47a.

  Further, as shown in FIG. 2A, fitting recesses 28 and 28 are formed on one side wall 21a of the first leg portion 21, and similarly, one of the second leg portions 22 is provided. Fitting recesses 28, 28 are also formed in the side wall 22a. Further, as shown in FIG. 2B, fitting convex portions 29 and 29 are formed on the side wall 21b opposite to the side wall 21a of the first leg portion 21, and similarly, Fitting protrusions 29 and 29 are also formed on the side wall 22b of the leg 22 opposite to the side wall 22a. Each fitting convex portion 29 is formed in a shape that can be fitted into the fitting concave portion 28, and is formed at a position facing the fitting concave portion 28 when the support legs 2 are arranged facing each other. That is, when laminating the plurality of support legs 2, the mating projections 29 are fitted in the mating recesses 28 facing each other, so that the laminated state is not easily broken.

[Effect of the embodiment]
(1) If the support leg 2 constituting the moving fence 1 of the embodiment described above is implemented, the hexagon nut 6 fastened to the tip 47a of the bolt 47 is removed, and the holding member 4 is separated from the first wall 23a. Accordingly, the bolt 47 provided on the holding member 4 can also be removed from the support leg 2.
Therefore, since it is not necessary to cut the support leg 2 and take out the bolt 47, the recyclability can be improved. Further, when the support legs 2 are separated by material and discarded, it is not necessary to cut the support legs 2 and take out the bolts 47, so that the disposal work efficiency can be improved.

(2) Moreover, since the cylindrical member 5 is disposed in the space 2a when inserted into the first hole 30 from the one open end 53, the support leg 2 is placed in an upside down posture. In this case, the cylindrical member 5 can be removed from the first hole 30.
Therefore, when the support leg 2 and the cylindrical member 5 are formed of different materials, it is not necessary to cut the support leg 2 and take out the cylindrical member 5, so that recyclability can be improved. Further, even when the support legs 2 are separated and discarded according to the material, it is not necessary to cut the support legs 2 and take out the tubular member 5, so that the disposal work efficiency can be improved.

(3) Further, the cylinder in a posture in which a predetermined range of the center line C1 formed by connecting the centers of the first hole 30 and the second hole 31 is surrounded by the inner wall 54 of the cylindrical member 5. The cylindrical member 5 is configured to be disposed in the space 2a, and the cylindrical member 5 serves as a reinforcing rib provided between the first wall 23a and the second wall 23b. When the hexagon nut 6 is fastened to the tip 47a of the bolt 47 protruding from the second hole 31, there is no possibility that the first wall 23a and the second wall 23b are crushed.

(4) Furthermore, since the diameter of the second hole 31 is smaller than the diameter of the cylindrical member 5, there is no possibility that the cylindrical member 5 disposed in the space 2 a falls out of the second hole 31.
(5) Furthermore, the other opening of the outer peripheral surface 51 of the cylindrical member 5 arranged in the space 2a is obtained by a simple operation of inserting the cylindrical member 5 into the first hole 30 from one opening end 53. Since the outer peripheral surface 51 in the vicinity of the end 52 is surrounded by the inner wall 30a of the first hole 30 and the cylindrical member 5 is positioned in the space 2a, the bolt 47 inserted into the holding member 4 is then inserted. Can be attached to the cylindrical member 5 by simply inserting the hexagon nut 6 into the tip 47a of the bolt 47 protruding from the second hole 31.
Therefore, the work efficiency of attaching the holding member 4 to the support leg 2 can be improved.

(6) Furthermore, one open end 53 of the cylindrical member 5 is in contact with the inner surface 23b2 facing the inner surface 23a2 of the first wall 23a among the surfaces forming the second wall 23b. By fastening the hexagon nut 6 to the tip 47a of the bolt 47 protruding from the second hole 31, the second wall 23b can be held by the washer 8 and the one open end 53.
Therefore, since the attitude of the cylindrical member 5 is stabilized, the attachment strength of the holding member 4 to the support leg 2 can be increased.
(7) As described above, if the support leg 2 is implemented, the recyclability and the disposal work efficiency are good, and the holding member 4 is attached when the holding member 4 for holding the pipe 3 is attached to the support leg 2. The support leg 2 which comprises the movement fence 1 without the possibility that the part to attach may be crushed can be provided.

<Other embodiments>
(1) When the cylindrical member 5 is inserted into the first hole 30 from one opening end 53 and disposed in the space 2 a, the other opening end 52 of the cylindrical member 5 is the outer edge of the first hole 30. The cylinder length of the cylindrical member 5 can also be changed so that it becomes the same height as 30b. Further, the cylindrical length of the cylindrical member 5 is changed to a length in which the other opening end 52 protrudes from the first hole 30, and a recess corresponding to the protruding portion is formed on the back surface 41 a of the base member 41 of the holding member 4. It can also be formed. Even when these changes are made, there is an effect that the cylindrical member 5 is positioned in the space 2a by a simple operation of inserting the cylindrical member 5 into the first hole 30 from one opening end 53. be able to.

(2) The holding member 4 can also be attached to the intermediate beam portion 24 (FIG. 1).
(3) The bolt 47 is inserted into the tubular member 5 from the second hole 31, and further inserted into the back surface 41a of the base member 41 of the holding member 4 through the first hole 30 (first wall 23a). A hexagon nut 6 or the like can be fastened to the tip 47a.
(4) A recess for fitting one open end 53 of the cylindrical member 5 can be formed on the inner surface 23b2 of the second wall 23b, so that the arrangement posture of the cylindrical member 5 can be further stabilized.
(5) The cylindrical member 5 with the bolts 47 inserted therein can be inserted into the first hole 30 from one open end 53.

(6) The holding member 4 can also be attached to the second wall 23 b (FIG. 2B) of the upper beam portion 23 or the second wall 25 b of the lower beam portion 25. For example, the cylindrical member 5 is inserted into the first hole 30 from one opening end 53, and the bolt 47 inserted through the holding member 4 is inserted into the cylindrical member 5 through the second hole 31. Further, the washer 8 and the spring washer 7 can be inserted into the tip 47a of the bolt 47 protruding from the first hole 30, and the hexagon nut 6 can be fastened to the tip 47a. In this case, since the second wall 23b is held between the one open end 53 of the cylindrical member 5 and the back surface 41a of the base member 41 of the holding member 4, the attachment strength of the holding member 4 to the support leg 2 is increased. be able to.
(7) The 2nd hole 31 is formed in the size which can insert cylindrical member 5, the 1st hole is formed in a diameter smaller than the diameter of cylindrical member 5, and cylindrical member 5 is made into the 2nd It can also be inserted from the hole 31. In this case, the bolt 47 can be inserted into the cylindrical member 5 from the first hole 30, or can be inserted into the cylindrical member 5 from the second hole 31.
(8) The diameter of the cylindrical member 5 is the same as the diameter of the first hole 30, and the outer peripheral surface 51 in the vicinity of the other opening end 52 of the cylindrical member 5 inserted from the first hole 30 is the first. It can also comprise so that it may be in the state which contacted the inner wall 30a of the hole 30 of this.

(9) The diameters of the first hole 30 and the second hole 31 are the same as the diameter of the cylindrical member 5, and the outer peripheral surface 51 in the vicinity of one open end 53 of the cylindrical member 5 is the second hole. 31 is configured to be in close contact with the inner wall of 31, or the outer peripheral surface 51 in the vicinity of the other opening end 52 is in close contact with the inner wall 30 a of the first hole 30. You can prevent it from falling out. For example, the outer peripheral surface 51 of at least one of the open ends 52 and 53 of the cylindrical member 5 is formed of a material having high friction such as rubber. Further, a structure in which the outer peripheral surface 51 in the vicinity of at least one of the both open ends 52 and 53 of the cylindrical member 5 may be locked to the inner wall of the hole that is in close contact with the outer peripheral surface 51. For example, a minute convex part or concave part is provided on the outer peripheral surface 51, and a concave part or convex part that fits into the convex part or concave part is formed on the inner wall of the hole.
(10) On the outer peripheral surface 51 in the vicinity of the other opening end 52 of the cylindrical member 5, an overhanging portion that protrudes outward from the outer peripheral surface 51 is provided. A configuration may be employed in which a concave portion for accommodating the overhang portion is provided so that the cylindrical member 5 does not fall off.
(11) As in the above-described embodiment, the bolt 47 may be separate from the holding member 4 or may be provided on the holding member 4. For example, a structure in which the base end of the bolt 47 is joined to the back surface 41a of the base member 41 of the holding member 4, that is, a structure in which the bolt 47 protrudes from the back surface 41a of the base member 41 like a stud bolt may be employed. A screw may be used instead of the bolt 47. Further, a wing nut can be used instead of the hexagon nut 6.
(12) Further, the cylindrical member 5 may have an elliptical, triangular, or polygonal cross section orthogonal to the central axis. The pipe 3 may have an elliptical, triangular, or polygonal cross section perpendicular to the central axis. Further, the long object spanned between the support legs 2 is not a hollow object such as the pipe 3 but may be a non-hollow object such as a round bar. Moreover, plate shape, rope shape, chain shape, etc. may be sufficient and shape is not ask | required.

[Correspondence between Claims and Embodiments]
The pipe 3 corresponds to the long object described in claim 1, the bolt 47 corresponds to the bolt member, and the hexagon nut 6 corresponds to the nut member.

DESCRIPTION OF SYMBOLS 1 Moving fence 2 Support leg 2a Space 3 Pipe 4 Holding member 5 Cylindrical member 6 Hexagon nut 7 Spring washer 8 Washer 21 1st leg part 22 2nd leg part 23 Upper beam part 23a 1st wall 23b 2nd wall Wall 24 Middle beam portion 25 Lower beam portion 25a First wall 25b Second wall 26 Upper opening portion 27 Lower opening portion 28 Fitting concave portion 29 Fitting convex portion 30 First hole 31 Second hole 47 Bolt 47a Tip 52 Other opening end 53 One opening end 54 Inner wall C1 Center line H1 Step W1 Gap

Claims (4)

A long object is bridged between the support legs arranged opposite to each other, and the support legs that constitute moving fences, each of which is attached to each of the support legs, are configured to hold the long object. Because
The support leg is made of synthetic resin molded by blow molding,
A cylindrical member through which a bolt member for attaching the holding member can be inserted;
A pair of walls for mounting the holding member, facing each other across a space;
A pair of opposing holes formed through the pair of walls, respectively,
At least one of the pair of holes is formed so that the cylindrical member can be inserted from one opening end thereof,
The cylindrical member is arranged in the space in a posture in which a predetermined range of a center line formed by connecting the centers of the pair of holes is surrounded by an inner wall of the cylindrical member. And
In a state where the bolt member is inserted through the cylindrical member disposed in the space in the posture, the tip of the bolt member protrudes from one of the pair of holes so that a nut member can be fastened. The support leg which comprises the moving fence characterized by being comprised. Any one of the pair of holes is formed so that the cylindrical member can be inserted from one opening end thereof,
2. The support leg constituting the moving fence according to claim 1, wherein a diameter of a hole facing one of the pair of holes is smaller than a diameter of the cylindrical member.   The posture is a posture further including a state in which a part of the outer peripheral surface of the cylindrical member disposed in the space is surrounded by at least one inner wall of the pair of holes. Or the support leg which comprises the movement fence of Claim 2.   The posture is such that the one opening end of the cylindrical member forms a wall positioned toward the one opening end, and the wall is positioned toward the other opening end of the cylindrical member. The support leg which comprises the moving fence of any one of Claim 1 thru | or 3 which is the attitude | position which has further the state contact | abutted to the inner surface which opposes.

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