Plastic clamp

Abstract

To provide a resin clamp capable of preventing rust.SOLUTION: First and second resin clamps X1, X2 are arranged on a synthetic resin barricade leg body Y supporting a single pipe Z. The first and second resin clamps X1, X2 each have a fixed clamp body 12, a movable clamp body 13 and a fixture 4. The fixed clamp body 12 is made of synthetic resin and integrally formed with the barricade leg Y. The movable clamp body 13 is arranged side by side with the fixed clamp body 12. The movable clamp body 13 is made of synthetic resin, pivotally supported by the barricade leg Y, and is rotated between a clamping position K1 where the single pipe Z is gripped with the fixed clamp body 12, and a release position K2 where the movable clamp body and the fixed clamp body 12 are separated by a pipe attachment / detachment gap GP exceeding a pipe outer diameter of the single pipe Z. The fixture 4 is made of synthetic resin, and fixes or releases the movable clamp 13 to or from the fixed clamp body 12.SELECTED DRAWING: Figure 28

Description

[Technical field]

[0001] The present invention relates to a resin clamp that is placed on a barricade leg that supports a single pipe. [Background technology]

[0002] Patent Document 1 discloses a barricade as a support for a single pipe. The barricade includes a pair of stands and multiple clamps attached to each stand. Each clamp is fixed to each stand with a fastening member (female thread, retaining member) and a bolt. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2012-31676 A Summary of the Invention [Problem to be solved by the invention]

[0004] In Patent Document 1, the clamp fittings, fastening fittings, and bolts are made of metal, and therefore rust cannot be avoided.

[0005] The present invention provides a resin clamp that can prevent the fixed clamp body, movable clamp body, and fastener that constitute the clamp from rusting when placed on a barricade leg. [Means for solving the problem]

[0006] The first aspect of the present invention relates to a barricade leg body that is made of synthetic resin and has a barricade thickness in the barricade thickness direction and supports a single pipe. The barricade leg body is provided with a resin clamp that is disposed on the barricade leg body, the resin clamp having a thickness in the barricade thickness direction and integrally formed with the barricade leg body from synthetic resin, and a circular arc recess , horizontal groove and Vertical groovea movable clamp body formed of a synthetic resin and arranged in parallel with the fixed clamp body; and a fixing device, wherein the arc recess is formed in the fixed clamp body by penetrating the fixed clamp body in an arc shape in the thickness direction of the barricade, Horizontal concave groove penetrates the fixed clamp body in the thickness direction of the barricade and opens into the arc surface of the arc recess with a groove depth radially outward of the arc surface of the arc recess, The vertical groove portion is formed continuously with the horizontal groove portion, penetrates the fixed clamp body in the radial direction of the arc surface, and has a groove depth in the barricade thickness direction and opens to the fixed clamp thickness end surface of the fixed clamp body, The movable clamp body is journalled to the barricade leg body and rotated between a clamping position in which it clamps and grips the single pipe with the arcuate surface of the fixed clamp body, and a release position in which a pipe attachment / detachment distance exceeds the outer circumferential diameter of the single pipe between the movable clamp body and the fixed clamp body, and the fixing device presses the arcuate surface of the fixed clamp body and the movable clamp body against the single pipe at the clamping position of the movable clamp body, fixing the movable clamp body to the fixed clamp body, or releasing the fixation of the movable clamp body to the fixed clamp body.This is a plastic clamp characterized in that: In claim 1, a configuration can be adopted in which a resin clamp (a resin clamp for a barricade leg) is placed on a barricade leg made of synthetic resin that supports a single pipe. In claim 1, the movable clamp body can also be supported by a support and rotated between a clamping position in which the fixed clamp body and the movable clamp body clamp and hold the single pipe, and a release position in which a pipe attachment / detachment gap exceeding the outer diameter of the single pipe is provided between the fixed clamp body and the movable clamp body.

[0007] According to claim 1 of the present invention, since the fixed clamp body and the movable clamp body are formed from synthetic resin, the fixed clamp body and the movable clamp body can be prevented from rusting. According to claim 1 of the present invention, the fixed clamp body can be formed (molded) integrally with the barricade leg body at the same time as the barricade leg body is formed (molded), and the plastic clamp can be placed on the barricade leg body simply by supporting the movable clamp body on the barricade leg body. According to claim 1 of the present invention, the single pipe can be fixed to the barricade leg body by clamping and holding the single pipe between the fixed clamp body and the movable clamp body, and pressing the fixed clamp body and the movable clamp body against the single pipe with a fixing device.

[0008] The second aspect of the present invention relates to a barricade leg body that is made of synthetic resin and has a barricade thickness in the barricade thickness direction and supports a single pipe, and the barricade leg body is provided with a resin clamp, The barricade has a thickness in a thickness direction. The barricade legs are integrally formed of synthetic resin. , a first arcuate recess, a horizontal recessed groove portion, and a vertical recessed groove portion a fixed clamp body, a barricade thickness direction, a synthetic resin, and a barricade body; Second A movable clamp body having an arcuate recess and a recessed groove, and a fixing device, The first arc recess is formed in the fixed clamp body by penetrating the fixed clamp body in an arc shape in the thickness direction of the barricade, the horizontal groove portion penetrates the fixed clamp body in the thickness direction of the barricade, and opens onto the first arc surface with a groove depth radially outward of the first arc surface of the first arc recess, and the vertical groove portion is formed continuously with the horizontal groove portion, penetrates the fixed clamp body in the radial direction of the first arc surface, and opens onto the fixed clamp thickness end surface of the fixed clamp body with a groove depth in the thickness direction of the barricade, The above Second The arc recess is formed in the movable clamp body by penetrating the movable clamp body in an arc shape in the thickness direction of the barricade, and the groove penetrates the movable clamp body in the thickness direction of the barricade and Second arc recess of Second circular arc surface The groove has a depth on the outer diameter side of the Second The movable clamp body is supported by the barricade leg body, and the fixed clamp body is opened on a circular arc surface. The first arc surface and the movable clamp body Second The fixing tool is rotated between a clamping position where the movable clamp body clamps and holds the single pipe between the movable clamp body and the circular arc surface, and a release position where a pipe attachment / detachment interval that exceeds the pipe outer diameter of the single pipe is provided between the movable clamp body and the fixed clamp body, and the fixing tool is rotated between the clamping position of the movable clamp body and the fixed clamp body. The first arc surface and the movable clamp body Second This is a plastic clamp characterized in that the movable clamp body is fixed to the fixed clamp body by pressing an arcuate surface against the single pipe, or the fixation of the movable clamp body to the fixed clamp body is released.

[0009] The present invention ByIn addition, since the fixing tool is made of synthetic resin, it is possible to prevent the fixing tool, as well as the fixed clamp body and the movable clamp body, from rusting. Effect of the Invention

[0010] In the present invention, in a resin clamp that is placed on a barricade leg body, the fixed clamp body, movable clamp body and fastener that constitute the clamp are formed from synthetic resin, thereby preventing the fixed clamp body, movable clamp body and fastener from rusting. [Brief description of the drawings]

[0011] [Figure 1] FIG. 2 is a perspective view showing the resin clamps (first and second resin clamps) according to the present invention and a barricade leg body on which the resin clamps are installed, in which the first and second resin clamps are disposed at the clamping position. [Diagram 2] FIG. 1 is a diagram showing the resin clamps (first and second resin clamps) according to the present invention and a barricade leg body on which the resin clamps are installed, and is a front view showing the first and second resin clamps arranged at the clamping position. [Diagram 3] FIG. 2 is a left side view showing the resin clamps (first and second resin clamps) according to the present invention and a barricade leg body on which the resin clamps are installed, with the first and second resin clamps disposed at the clamping position. [Figure 4] FIG. 2 is a right side view showing the resin clamps (first and second resin clamps) according to the present invention and a barricade leg body on which the resin clamps are installed, with the first and second resin clamps disposed at the clamping position. [Diagram 5] FIG. 2 is a diagram showing the resin clamps (first and second resin clamps) according to the present invention and a barricade leg body on which the resin clamps are installed, in which the figure is a plan view (top view) showing the first and second resin clamps arranged at the clamping position. [Figure 6] 5C is a cross-sectional view taken along line CC of FIG. [Figure 7]FIG. 1 is a front view showing the resin clamps (first and second resin clamps) according to the present invention and the barricade legs on which the resin clamps are installed, with the first and second resin clamps being placed in the released position. [Figure 8] FIG. 3 is an enlarged view of a portion A in FIG. 2, showing a first resin clamp. [Figure 9] FIG. 7 is an enlarged view of a portion D in FIG. 6, showing a first resin clamp. [Figure 10] 8 is an enlarged view of a portion F in FIG. 7, showing a first resin clamp. FIG. [Figure 11] FIG. 2 is a perspective view showing the shafts of the resin clamps (first and second resin clamps), a fixed clamp body, a first fixed protrusion, a fixed groove, and a barricade leg body (barricade leg body). [Figure 12] FIG. 12 is a partially enlarged perspective view showing the first shaft portion, the fixing clamp body, the first fixing protrusion, the fixing groove, and the barricade leg body (barricade leg body) in FIG. [Figure 13] FIG. 2 is a partially enlarged plan view showing the first shaft portion, the fixed clamp body, the first fixed protrusion, the fixed groove, and the barricade leg body (barricade leg body). [Figure 14] FIG. 2 is a perspective view showing movable clamp bodies of resin clamps (first and second resin clamps) and a fixing device. [Figure 15] 4 is a plan view (top view) showing movable clamp bodies and a fixing device of the resin clamps (first and second resin clamps). FIG. [Figure 16] FIG. 2 is a right side view showing the movable clamp bodies and the fixing device of the resin clamps (first and second resin clamps). [Figure 17] FIG. 16 is an enlarged view of the HH cross section of FIG. [Figure 18] 3 is an enlarged view of a portion B in FIG. 2, showing a second resin clamp; FIG. [Figure 19] 7 is an enlarged view of a portion E in FIG. 6, showing a second resin clamp. FIG. [Figure 20] 8 is an enlarged view of a portion G in FIG. 7, showing a second resin clamp. FIG. [Figure 21]FIG. 12 is a partially enlarged perspective view showing the second shaft portion, the fixing clamp body, the first fixing protrusion, the fixing groove, and the barricade leg body (barricade leg body) in FIG. [Figure 22] FIG. 2 is a partially enlarged plan view showing the second shaft portion, the fixed clamp body, the first fixed protrusion, the fixed groove, and the barricade leg body (barricade leg body). [Figure 23] FIG. 13 is an enlarged front view showing the movable clamp bodies 2 of the first and second resin clamps placed in the release position and a single pipe inserted between the fixed clamp body and the movable clamp body. [Figure 24] FIG. 13 is an enlarged front view showing the movable clamp bodies 2 of the first and second resin clamps placed in the release position and a single pipe inserted between the fixed clamp body and the movable clamp body. [Diagram 25] FIG. 13 is an enlarged front view showing the movable clamp bodies 2 of the first and second resin clamps placed in the release position and the single pipe inserted (press-fitted) into the first arcuate recess of the fixed clamp body. [Figure 26] 26(a) is an enlarged front view of the movable clamp bodies of the first and second resin clamps placed at the clamping position to clamp the single pipe between the fixed clamp body and the movable clamp body, and (b) is an enlarged view taken along the M arrow in Figure 26(a). [Figure 27] 13 is an enlarged front view showing the movable clamp bodies of the first and second resin clamps placed at the clamping position and the fixed shaft portion of the link lever inserted into the fixed groove. FIG. [Figure 28] 13 is an enlarged front view of the first and second resin clamps with the movable clamp bodies disposed at the clamping positions and fixed to the fixed lamp body by a fixing device. FIG. [Figure 29] FIG. [Diagram 30] FIG. 13 is a front view showing a fixing device (a fixing device of a first modified example) in the first and second resin clamps. [Diagram 31] FIG. 13 is a right side view showing a fixing device (a fixing device of a first modified example) in the first and resin clamps. [Diagram 32] FIG. 13 is a plan view (top view) showing a fixing device (a fixing device of a first modified example) in the first and second resin clamps. [Diagram 33] FIG. 13 is a front view showing a fixing device (a fixing device of a second modified example) in the first and second resin clamps. [Diagram 34] FIG. 13 is a right side view showing a fixing device (a fixing device of a second modified example) in the first and second resin clamps. [Diagram 35] 13 is a plan view (top view) showing a fixing device (a fixing device of a second modified example) in the first and second resin clamps. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] A resin clamp (a resin clamp for a barricade leg) according to the present invention will be described with reference to Figs. 1 to 35.

[0013] 1 to 28, a resin clamp X is disposed on a barricade leg Y. As shown in Figs. 1, 2, 6 and 7, for example, a plurality of resin clamps X (a pair) are disposed on the barricade leg Y, and each of the resin clamps X comprises a first resin clamp X1 (upper resin clamp) and a second resin clamp X2 (lower resin clamp). The first and second resin clamps X1, X2 are disposed on the barricade leg Y made of synthetic resin that supports the single pipe Z (see Figs. 28 and 29).

[0014] 1 to 7, the barricade leg body Y is made of synthetic resin and supports a single pipe Z. The barricade leg body Y includes a barricade leg body 1 (barricade body) and one or more (a pair of) resin clamps X (first and second resin clamps X1, X2).

[0015] As shown in Figs. 1 to 7 and 11, the barricade leg body 1 is made of synthetic resin and supports a single pipe Z. The barricade leg body 1 (barricade leg body Y) is made of synthetic resin (resin) such as polyethylene or polypropylene, and is molded hollow by blow molding. The barricade leg body 1 (barricade leg body Y) has a barricade thickness of direction It is formed into a flat plate-like body having a barricade thickness BT in the TA (X direction). As shown in FIGS. 1 to 7 and 11, the barricade leg body 1 has a first reference surface 2, a plurality (a pair) of legs 3 and 4, a central opening 5, and a second reference surface 6.

[0016] The first reference plane 2 is formed at one barricade end 1A of the barricade leg body 1 (barricade leg body Y) in the barricade height direction LA (Z direction) perpendicular to the barricade thickness direction TA (X direction), as shown in Figures 1, 11 and 12.

[0017] Each of the legs 3, 4 is formed on the other barricade end 1B side of the barricade leg body 1 (barricade leg body Y) in the barricade height direction LA as shown in Figures 1 to 4, 6, 7 and 11. The legs 3, 4 are disposed with a gap between them in the barricade width direction HA (Y direction / first orthogonal direction) perpendicular to the barricade thickness direction TA (X direction) and the barricade height direction HA (Z direction).

[0018] The middle opening 5 is disposed between the barricade ends 1A, 1B in the barricade height direction LA as shown in Figures 1, 2, 6, 7, and 11. The middle opening 5 is disposed at the center of the barricade leg body 1 (barricade leg body Y) in the barricade width direction HA. The middle opening 5 is formed penetrating the barricade leg body 1 (barricade leg body Y) in the barricade thickness direction TA (X direction).

[0019] 1, 2, and 11, the second reference surface 6 is formed by constituting a part of the inner peripheral surface of the middle opening 5. The second reference surface 6 is a part of the inner peripheral surface 5A (inner peripheral bottom surface) of the middle opening 5 located on the other barricade end 1B side in the barricade height direction LA.

[0020] The first resin clamp X1 (upper resin clamp) is disposed (installed) on the barricade leg body 1 (barricade leg body Y) as shown in Figures 1 to 13. The first resin clamp X1 is disposed (installed) on one barricade end 1A in the barricade height direction LA (Z direction / second orthogonal direction).

[0021] As shown in Figures 1 to 17, the first resin clamp X1 includes a shaft portion 11 (first shaft portion), a fixed clamp body 12 (first fixed clamp body), a movable clamp body 13 (first movable clamp body), and a fixing device 14 (first fixing device).

[0022] As shown in Figures 8 to 13, the shaft 11 is made of the same synthetic resin as the barricade leg body 1 (barricade leg body Y). The shaft 11 is integrally formed (molded integrally) with the barricade leg body 1 (barricade leg body Y) from synthetic resin. The shaft 11 is disposed on the first reference plane 2 (one barricade end 1A) and is integrally formed with the barricade leg body 1 (barricade leg body Y).

[0023] 11 and 12, the shaft portion 11 extends such that the axial center line a of the shaft portion 11 is directed toward the barricade thickness direction TA (X direction). The shaft portion 11 has an axial length that is approximately the same (or the same) as the barricade thickness BT, and extends in the barricade thickness direction TA. As a result, the shaft portion 11 is disposed so that the shaft center line a of the shaft portion 11 is perpendicular to the barricade height direction LA (Z direction) and the barricade width direction HA (Y direction).

[0024] The fixed clamp body 12 (fixed portion) is made of the same synthetic resin as the barricade leg body 1 (barricade leg body Y) as shown in Figures 1 to 13. The fixed clamp body 12 is integrally formed (integrally molded) with the barricade leg body 1 (barricade leg body Y) of synthetic resin. 13, the fixed clamp body 12 is arranged (parallel) to the shaft portion 11 at an arrangement interval G in the barricade width direction HA (Y direction / first orthogonal direction) perpendicular to the direction TA (barricade thickness direction TA) of the axial center line a of the shaft portion 11. The fixed clamp body 12 is arranged adjacent to (continuous with) the first reference plane 2 in the barricade width direction HA (Y direction / first orthogonal direction).

[0025] As shown in Figures 1, 2, and 6 to 13, the fixed clamp body 12 protrudes from the barricade leg body 1 (barricade leg body Y) in the barricade height direction LA (Z direction / second orthogonal direction) perpendicular to the axial center line a of the shaft portion 11 and the barricade width direction HA. The fixed clamp body 12 is formed protruding from one barricade end 1A of the barricade leg body 1 (barricade leg body Y) while being spaced apart from each barricade end 1A, 1B of the barricade leg body 1 in the barricade height direction LA (Z direction / second orthogonal direction).

[0026] As shown in FIG. 12, the fixed clamp body 12 is formed to have a fixed clamp thickness in the barricade thickness direction TA that is the same as the barricade thickness BT of the barricade leg body 1 (barricade leg body Y). The fixed clamp body 12 is formed hollow by blow molding, and is formed integrally (molded integrally) with the barricade leg body 1 (barricade leg body Y).

[0027] As shown in Figures 8, 9, and 11 to 13, the fixed clamp body 12 has a first arcuate recess 21 (fixed side arcuate recess), a first groove 22 (straight groove), a second groove 23, and a guide protrusion 24.

[0028] 8, 9, and 11 to 13, the first arcuate recess 21 is formed integrally with the fixed clamp body 12. The single pipe Z is inserted (mounted) in the first arcuate recess 21 (see FIG. 25). The first arc recess 21 is formed in the fixed clamp body 12 by penetrating the fixed clamp body 12 in an arc shape in the direction TA (barricade thickness direction TA) of the axial center line a of the shaft portion 11. The first arc recess 21 is formed opening toward the shaft portion 11 side (movable clamp body 13 side) in the barricade width direction HA. The first arc recess 21 is formed in an arc shape in cross section in the barricade height direction LA (second orthogonal direction) perpendicular to the axial center line a of the shaft portion 11 and the barricade width direction HA. The first arc recess 21 is formed by recessing a part of the fixed clamp body 12 inward, and has a first arc surface 25 (fixed side arc surface) that abuts against the pipe outer circumferential surface Za of the single pipe Z.

[0029] 8, 9, and 11 to 13, the first arcuate surface 25 is formed in a cross section in a barricade height direction LA (second orthogonal direction) perpendicular to the axial center line a of the shaft portion 11 and the barricade width direction HA. The first arcuate surface 25 has a surface width equal to the barricade thickness BT of the barricade leg body 1 (barricade leg body Y) in the direction TA (barricade thickness direction TA) of the axial center line a of the shaft portion 11. The first arcuate surface 25 opens to each fixed clamp thickness end surface 12A, 12B of the fixed clamp body 12 in the barricade thickness direction TA.

[0030] 12 and 13, the first arcuate surface 25 is formed on the fixed clamp body 12 with each arcuate surface end 25a, 25b in the circumferential direction (arc direction) of the first arcuate surface 25 facing the shaft portion 11 (movable clamp body 13) in the barricade width direction HA. The first arcuate surface 25 is formed so that one arcuate surface end 25a of the first arcuate surface 25 is continuous with the first reference surface 2 of the barricade leg body 1 (barricade leg body Y).

[0031] 13, the first arc surface 25 is formed in an arc shape having a pipe outer circumferential radius r1 of the single pipe Z from the first arc center O1 and a first central angle θ1. The first central angle θ1 of the first arc surface 25 is, for example, any angle greater than 90 degrees and less than 140 degrees (90°<θ1<140°).

[0032] 8, 9, and 11 to 13, the first groove 22 (straight groove) is disposed on one end 25a of the first arcuate surface 25 and formed in the fixed clamp body 12. The first groove 22 linearly penetrates the fixed clamp body 12 in the direction TA (barricade thickness direction TA) of the axial center line a of the shaft portion 11 and opens to the first arcuate surface 25. The first groove 22 has a groove width narrower than the arc length of the first arcuate surface 25 in the circumferential direction (arc direction) of the first arcuate surface 25, and has a groove depth radially outward from the first arcuate surface 25 and opens to the first arcuate surface 25. The first recessed groove 22 is formed integrally with the fixed clamp body 12 (barricade leg body 1) by recessing a part of the first arcuate surface 25 inwardly of the first arcuate surface 25 (inwardly of the fixed clamp body 12).

[0033] 8, 9, and 11 to 13, the second groove 23 (second groove body) is disposed on the other arcuate surface end 25b side, spaced from the first groove 22, in the circumferential direction (arc direction) of the first arcuate surface 25. The second groove 23 is formed in the fixed clamp body 12. The second groove 23 has a horizontal groove portion 26 and a plurality (a pair) of vertical groove portions 27, .

[0034] 8, 9, and 11 to 13, the lateral groove portion 26 (lateral groove) penetrates the fixed clamp body 12 in the direction TA (barricade thickness direction TA) of the axial center line a of the shaft portion 11, and opens into the first arcuate surface 25. The lateral groove portion 26 has a groove width in the circumferential direction (arc direction) of the first arcuate surface 25 that is narrower than the arc length of the first arcuate surface 25, and has a groove depth in the radially outward direction of the first arcuate surface 25, and opens into the first arcuate surface 25. The horizontal recessed groove portion 26 is formed integrally with the fixed clamp body 12 (barricade leg body 1) by recessing a part of the first arcuate surface 25 inwardly of the first arcuate surface 25 (inwardly of the fixed clamp body 12).

[0035] As shown in Figures 8, 9, and 11 to 13, each vertical groove portion 27, 28 (each vertical groove) is formed in each thickness end face 12A, 12B of the fixed clamp body 12 in the barricade thickness direction TA. Each vertical groove portion 27, 28 is formed continuously with the horizontal groove portion 26. Each vertical groove portion 27, 28 penetrates the fixed clamp body 12 in the radial direction of the first arc surface 25 and opens to each fixed clamp thickness end face 12A, 12B. Each vertical groove portion 27, 28 has the same groove width as the horizontal groove portion 26 in the circumferential direction (arc direction) of the first arc surface 25, and has a groove depth in the barricade thickness direction TA, and opens to each fixed clamp thickness end face 12A, 12B of the fixed clamp body 12. Each vertical groove portion 27, 28 is formed integrally with the fixed clamp body 12 (barricade leg body 1) by recessing a portion of each fixed clamp thickness end face 12A, 12B of the fixed clamp body 12 toward the inside of each fixed clamp thickness end face 12A, 12B (inside the fixed clamp body 12).

[0036] As shown in Figures 5, 8, 9, and 11 to 13, the guide projection 24 is integrally formed on the protruding end surface 12C (the protruding end surface 12C perpendicular to the first arcuate surface 25 at the other arcuate surface end 25b) of the fixed clamp body 12 on the side protruding from the barricade leg body 1 (barricade leg body Y). The guide projection 24 is disposed in the center of the fixed clamp body 12 in the barricade thickness direction TA (X direction). The guide projection 24 has a projection width CT in the barricade thickness direction TA. The guide projection 24 protrudes from the protruding end surface 12C toward the shaft portion 11 in the barricade width direction HA.

[0037] The movable clamp body 13 is made of synthetic resin, as shown in Figures 1, 3, 5, 8, 9, and 14 to 17. The movable clamp body 13 is arranged side by side (parallel) to the fixed clamp body 12 in the barricade width direction HA (first orthogonal direction). The movable clamp body 13 is arranged side by side (parallel) to the fixed clamp body 12 on the shaft portion 11 side in the barricade width direction HA. The movable clamp body 13 is formed to have approximately the same thickness as the fixed clamp body 12 in the barricade thickness direction TA. The movable clamp body 13 has a second arcuate recess 35, a third recessed groove 38 (a linear recessed groove), and a guide recessed groove 39, as shown in FIGS.

[0038] As shown in FIGS. 8, 9, 14, 16, and 17, the second arcuate recess 35 penetrates the movable clamp body 13 in an arc shape in the direction TA of the axial center line a of the shaft portion 11 (barricade thickness direction TA). , possibleThe second arc-shaped recess 35 is formed in the movable clamp body 13. The second arc-shaped recess 35 is formed to open towards the fixed clamp body 12 in the barricade width direction HA. The second arc-shaped recess 35 is formed to have an arc-shaped cross section in the barricade height direction LA. The second arc-shaped recess 35 is formed by recessing a part of the movable clamp body 13 inward, and has a second arc-shaped surface 41 that abuts against the outer circumferential surface Za of the single pipe Z.

[0039] The second arcuate surface 41 is formed to have an arcuate cross section in the barricade height direction LA (second orthogonal direction) as shown in Figures 8, 9, and 17. The second arcuate surface 41 has substantially the same surface width as the fixed clamp body 12 in the direction TA (barricade thickness direction TA) of the axial center line a of the shaft portion 11, and opens at each of the movable clamp thickness end faces 13C, 13D of the movable clamp body 13. The second arcuate surface 41 is formed on the movable clamp body 13 in the barricade width direction HA, with each of the arcuate surface ends 41a, 41b in the circumferential direction (arc direction) of the second arcuate surface 41 facing the fixed clamp body 12 (first arcuate surface 25).

[0040] 17, the second arc surface 41 is formed in an arc shape having a pipe outer circumferential radius r1 of the single pipe Z from the second arc center O2 and a second central angle θ2. The second central angle θ2 of the second arc surface 41 is, for example, an angle smaller than the first central angle θ1 of the first arc surface 25 and is an arbitrary angle greater than 30 degrees and less than 45 degrees (30°<θ2<45°).

[0041] The third groove 38 is disposed on one arcuate surface end 41a side of the second arcuate surface 41, as shown in Figures 8, 9, 15, 16 and 17, and is formed in the movable clamp body 13. The third groove 38 penetrates the movable clamp body 13 in the direction TA (barricade thickness direction TA) of the axial center line a of the shaft portion 11, and opens into the second arcuate surface 41. The third groove 38 has a groove width narrower than the arc length of the second arcuate surface 41 in the circumferential direction (arc direction) of the second arcuate surface 41, and has a groove depth radially outward from the second arcuate surface 41, and opens into the second arcuate surface 41.

[0042] The guide groove 39 is formed in the movable clamp end face 13B (the other movable clamp end face) perpendicular to the second arcuate surface 41 at the other arcuate surface end 41b in the circumferential direction (arc direction) of the second arcuate surface 41, as shown in Figures 5, 8, 9, 16 and 17. The guide groove 39 is disposed in the center of the movable clamp body 13 in the barricade thickness direction TA. The guide groove 39 penetrates the movable clamp body 13 in the radial direction of the second arcuate surface 41 and opens toward the guide protrusion 24 of the fixed clamp body 12. The guide groove 39 is formed in the movable clamp end face 13B with a groove width that is approximately the same as or slightly wider than the protrusion width of the guide protrusion 24 in the barricade thickness direction TA. The guide groove 39 allows the guide protrusion 24 to be freely inserted into the guide groove 39 .

[0043] The movable clamp body 13 is rotatably supported on the barricade leg body 1 (barricade leg body Y) as shown in Figures 1, 8 and 9. The movable clamp body 13 is rotatably supported on the shaft portion 11 around the shaft center line of the shaft portion 11. The movable clamp body 13 is supported by the shaft portion 11 at one movable clamp end face 13A on one arcuate surface end 41a side in the circumferential direction (arc direction) of the second arcuate surface 41, and is rotated between a clamp position K1 and a release position K2 (see Figures 7 and 10).

[0044] As shown in Figures 1, 3, 8 and 9, the movable clamp body 13 is journalled to the barricade leg body Y (shaft portion 11) and is rotated between a clamp position K1 in which the second center O2 of the second arcuate surface 41 is positioned so as to coincide with the first center O1 of the first arcuate surface 25, where the movable clamp body 13 clamps and holds the single pipe Z with the fixed clamp body 12, and a release position K2 in which a pipe attachment / detachment gap GP is formed between the fixed clamp body 12 and the single pipe Z, the pipe attachment / detachment gap GP being greater than the pipe outer diameter d1 of the single pipe Z. At the clamp position K1, the movable clamp body 13 clamps the single pipe Z between the fixed clamp body 12 and the movable clamp body 13 (see FIGS. 26 to 28). In the release position K2, the first movable clamp body 3 is positioned between the fixed clamp body 12 and the movable clamp body 13, at a tube tea attachment / detachment gap GP that exceeds the tube outer diameter d1 of the single tube Z, as shown in Figures 10 and 23.

[0045] The fixing device 14 is made of synthetic resin and is disposed in the fixed clamp body 12 and the movable clamp body 13 as shown in Figures 1, 3 to 5, 8, 9, and 14 to 17. At the clamp position K1 of the second movable clamp body 13, the fixing device 14 presses the fixed clamp body 12 and the movable clamp body 13 against the outer peripheral surface Za of the single pipe Z, thereby fixing the movable clamp body 13 to the fixed clamp body 12 (see Figure 28). The fixing device 14 releases the fixing of the movable clamp body 13 from the fixed clamp body 12 at the clamp position K1 of the movable clamp body 13.

[0046] As shown in Figures 1, 3 to 5, 8, 9, and 11 to 17, the fixing device 14 has a first fixing protrusion 45 (fixed side protrusion), a second fixing protrusion 46 (movable side protrusion), a fixing groove 47, and a link mechanism L.

[0047] As shown in Figures 1, 4, 5, 8, 9, and 11 to 13, the first fixed protrusion 45 is made of the same synthetic resin as the barricade leg body 1 (barricade leg body Y). The first fixed protrusion 45 is integrally formed (integrally molded) with the fixed clamp body 12 from synthetic resin. The first fixed protrusion 45 is disposed adjacent to the protruding end face 12C of the fixed clamp body 12. The first fixed protrusion 45 is integrally formed with the fixed clamp outer peripheral surface 12F of the fixed clamp body 12 that faces (opposes) the first arcuate surface 25.

[0048] The first fixed projection 45 is disposed in the center of the fixed clamp body 12 in the barricade thickness direction TA, as shown in Figures 4, 5, 8, 9, and 11 to 13. The first fixed projection 45 has a projection thickness TP (first projection thickness) narrower than the barricade thickness of the barricade leg body 1 (fixed clamp body 12) in the barricade thickness direction TA, and is formed on the fixed clamp outer circumferential surface 12F of the fixed clamp body 12.

[0049] As shown in FIG. 13, the first fixed projection 45 has a projection length LP and projects from the fixed clamp outer circumferential surface 12F (outer circumferential surface) of the fixed clamp main body 12. The first fixed protrusion 45 is formed integrally with the fixed clamp body 12 (barricade leg body 1) by bulging a part of the fixed clamp outer peripheral surface 12F of the fixed clamp body 12 from the fixed clamp outer peripheral surface 12F into the hollow.

[0050] As shown in Figures 1, 3, 5, 8, 9, and 14 to 17, the second fixed protrusion 46 is made of the same synthetic resin as the movable clamp body 13. The second fixed protrusion 46 is integrally formed (integrally molded) with the movable clamp body 13 from synthetic resin. The second fixed protrusion 46 is disposed adjacent to the other movable clamp end face 13B of the movable clamp body 13. The second fixed protrusion 46 is integrally formed with the movable clamp outer circumferential surface 13F of the movable clamp body 13 that faces (opposes) the second arcuate surface 41.

[0051] The second fixed projection 46 is disposed in the center of the movable clamp body 13 in the barricade thickness direction TA, as shown in Figures 3, 15, and 16. The second fixed projection 46 is narrower than the barricade leg body 1 in the barricade thickness direction TA, has the same projection thickness TP (second projection thickness) as the first fixed projection 45, and is formed on the movable clamp outer peripheral surface 13F of the movable clamp body 13. The second fixed projection 46 has the same projection length LP as the first fixed projection 45, as shown in Figure 17, and protrudes from the movable clamp outer peripheral surface 13F (outer peripheral surface) of the movable clamp body 13.

[0052] 5, 8, 9, and 11 to 13, the fixing groove 47 is formed in the first fixing protrusion 45. The fixing groove 47 penetrates the first fixing protrusion 45 in the barricade thickness direction TA (the direction TA of the axial center line a of the shaft portion 11) and opens to the protrusion outer circumferential surface 45A of the first fixing protrusion 45. The fixing groove 47 is formed integrally with the first fixing protrusion 45 by recessing a part of the protrusion outer circumferential surface 45A of the first fixing protrusion 45 inwardly of the first fixing protrusion 45.

[0053] The link mechanism L is made of synthetic resin. As shown in Figures 1, 3 to 5, 8, 9, and 14 to 17, the link mechanism L is disposed (installed) on the second fixed protrusion 46 (movable clamp body 13). As shown in FIGS. 1, 3 to 5, 8, 9, and 14 to 17, the link mechanism L has a link 51 (driver) and a link lever 52 (follower).

[0054] 8, 9, 14, and 17, the link 51 is formed of a long frame made of synthetic resin and is rotatably supported by the second fixed protrusion 46 (movable clamp body 13). The link 51 is disposed on the second fixed protrusion 46 with one link end 51A in the link longitudinal direction LG rotatably supported by the second fixed protrusion 46. The link 51 is supported by the second fixed protrusion 46 around a link rotation center line b parallel to the shaft center line a of the shaft portion 11.

[0055] 3 to 5, 8, 9, and 14 to 17, the link lever 52 is formed as a long frame made of synthetic resin and rotatably connected to the link 51. The link lever 52 is connected to the link 51 with one lever end 52A side in the lever longitudinal direction LJ rotatably supported on the other link end 51B side of the link 51. The link lever 52 is rotatably connected to the link 51 about a lever rotation center line c that is parallel to the link rotation center line b (axial center line a of the shaft portion 11).

[0056] As shown in Figs. 5, 9, and 14 to 17, the link lever 52 has a lever hole 54 and a fixed shaft portion 55. The lever hole 54 has a hole width (wider hole width) larger than the link 51 (projection thickness TP of the first and second fixed projections 45, 46) in the lever width direction HJ (barricade thickness direction TA) perpendicular to the lever longitudinal direction LJ, and extends between the lever ends 52A, 52B in the lever longitudinal direction LJ. The lever hole 54 has a hole length La in the lever longitudinal direction LJ, and extends between the lever ends 52A, 52B. The hole length La of the lever hole 54 is a hole length longer than the center distance Pa (center distance) between the rotation center line c of the link lever 52 and the groove hole center line e of the fixed groove 47 at the clamp position K1 of the second movable clamp body 13. As a result, the link lever 52 rotatably inserts (stores) the link 51 in the lever hole 54, and rotatably connects one lever end 52A to the other link end 51B of the link 51. The link lever 52 allows the first and second fixing protrusions 45, 46 to be freely inserted (stored) in the lever hole 54.

[0057] 5, 9, 14, 15 and 17, the fixed shaft portion 55 is disposed at the other lever end 52B of the link lever 52 and is formed integrally with the link lever 52. The fixed shaft portion 55 is disposed adjacent to the lever hole 54 with the fixed shaft center line f of the fixed shaft portion 55 parallel to each of the rotation center lines b, c.

[0058] The second resin clamp X2 (lower resin clamp) is disposed (installed) on the barricade leg body 1 (barricade leg body Y) as shown in Figures 1, 2, 6, 7, 11 to 18 to 22. The second resin clamp X2 is disposed (installed) in the middle opening 5. As shown in Figures 1, 14 to 22, the second resin clamp X2 has the same configuration as the first resin clamp X1, and includes an axis portion 11 (second axis portion), a fixed clamp body 12 (second fixed clamp body), a movable clamp body 13 (second movable clamp body), and a fixing device 14 (second fixing device).

[0059] In the second resin clamp X2, the shaft 11 is formed of the same synthetic resin as the barricade leg body 1 (barricade leg body Y) as shown in Figures 11, 18 to 21. In the second resin clamp X2, the shaft 11 is integrally formed (integrally molded) with the barricade leg body 1 (barricade leg body Y) of synthetic resin. The shaft portion 11 of the second resin clamp X2 is disposed on the second reference plane 6, and is formed integrally with the barricade leg body 1 (barricade leg body Y). The shaft 11 of the second resin clamp X2 extends such that the axial center line a of the shaft 11 is directed toward the barricade thickness direction TA (X direction) as shown in Figures 11 and 21. In the second resin clamp X2, the shaft 11 extends with an axial length that is approximately the same (or the same) as the barricade thickness BT of the barricade leg main body 1. As a result, the shaft portion 11 of the second resin clamp X2 is positioned with its shaft center line a parallel to the shaft center line a of the shaft portion 11 of the first resin clamp X1, and with its shaft center line a perpendicular to the barricade height direction LA (Z direction) and the barricade width direction HA (Y direction).

[0060] In the second resin clamp X2, the fixed clamp body 12 is formed of the same synthetic resin as the barricade leg body 1 (barricade leg body Y) as shown in Figures 1, 11, 18 to 21. The fixed clamp body 12 of the second resin clamp X2 is integrally formed (integrally molded) with the barricade leg body 1 (barricade leg body Y) of synthetic resin. As shown in Figure 20, the fixed clamp body 12 of the second resin clamp X2 is arranged in the middle opening 5, parallel to the shaft portion 11 of the second resin clamp X2 at an arrangement distance G in the barricade width direction HA perpendicular to the direction TA (barricade thickness direction TA) of the axial center line a of the shaft portion 11 of the second resin clamp X2. As shown in FIG. 21, the fixed clamp body 12 of the second resin clamp X2 is disposed within the middle opening 5 adjacent to (continuous with) the second reference surface 6 in the barricade width direction HA (first orthogonal direction).

[0061] 1, 18, 19, 21 and 22, the fixed clamp body 12 of the second resin clamp X2 is formed to protrude from the inner peripheral surface 5A (inner peripheral bottom surface) of the inner opening 5 into the inner opening 5 in the barricade height direction LA (Z direction / second orthogonal direction) perpendicular to the axial center line a of the shaft portion 11 of the second resin clamp X2 and the barricade width direction HA. The fixed clamp body 12 of the second resin clamp X2 protrudes from the inner peripheral surface 5A of the inner opening 5 into the inner opening 5 while being spaced apart from the other barricade end 1B of the barricade leg main body 1 and the inner peripheral surface 5A in the barricade height direction LA (Z direction / first orthogonal direction).

[0062] In the second resin clamp X2, the fixed clamp body 12 is formed to have the same thickness as the barricade thickness BT of the barricade leg body 1 (barricade leg body Y), as shown in FIGS. The fixed clamp body 12 of the second resin clamp X2 is formed into a hollow shape by blow molding, and is formed integrally (molded integrally) with the barricade leg body 1 (barricade leg body Y).

[0063] As shown in Figures 11, 18, 19, 21 and 22, the fixed clamp body 12 of the second resin clamp X2 has a first arc recess 21, a first groove 22, a second groove 23 (second groove body) and a guide protrusion 24, similar to the fixed clamp body 12 of the first resin clamp X1. In the second resin clamp X2, the first arcuate recess 21 has a first arcuate surface 25, similar to the first arcuate recess 21 of the first resin clamp X1, as shown in Figures 11, 18, 19, 21 and 22. In the second resin clamp X2, the first arcuate surface 25 is formed such that one arcuate surface end 25a is continuous with the second reference surface 6 of the middle opening 5 (barricade leg main body 1), as shown in Figures 21 and 22.

[0064] In the second resin clamp X2, the movable clamp body 13 has the same configuration as the movable clamp body 13 of the first resin clamp X1, as shown in FIG. 1 and FIGS. The movable clamp body 13 of the second resin clamp X2 has a second arcuate recess 35, a third recessed groove 38, and a guide recessed groove 39, similar to the movable clamp body 13 of the first resin clamp X1. In the second resin clamp X2, the second arcuate recess 35 has a second arcuate surface 41, similar to the second arcuate recess 35 of the first resin clamp X1, as shown in FIGS.

[0065] 1 and 14 to 20, the fixing device 14 of the second resin clamp X2 has the same configuration as the fixing device 14 of the first resin clamp X1. The fixing device 14 of the second resin clamp X2 is disposed in the fixed clamp body 12 and the movable clamp body 13 of the first resin clamp X2, similar to the first resin clamp X1. The fixture 14 of the second resin clamp X2 includes a first fixing protrusion 45, a second fixing protrusion 46, a fixing groove 47, and a link mechanism L, similar to the fixture 14 of the first resin clamp X, as shown in FIGS. The link mechanism L of the second resin clamp X2 has a link 51 and a link lever 52, similar to the link mechanism L of the first resin clamp X1.

[0066] In the barricade leg body Y, the first and second resin clamps X1, X2 rotate in a direction A (one direction / counterclockwise direction in Figure 23) away from the fixed clamp body 12, as shown in Figure 23, to position the movable clamp body 13 in the release position K2. As a result, in the first and second resin clamps X1, X2, the movable clamp bodies 13 are rotated from the clamped position K1 to the released position K2.

[0067] The movable clamp bodies 13 of the first and second resin clamps X1, X2 are arranged with the movable clamp outer peripheral surface 13F in contact with the second reference surface 6 (inner peripheral surface 5A) in the release position K2 of the movable clamp body 13 as shown in Fig. 23. The movable clamp bodies 13 of the first and second resin clamps X1, X2 are arranged with the pipe attachment / detachment gap GP between the movable clamp body 13 (the other movable clamp end surface 13B) and the fixed clamp body 12 (protruding end surface 12C) in the release position K2 of the movable clamp body 13 as shown in Fig. 23.

[0068] The movable clamp body 13 of the first and second resin clamps X1, X2 is placed in the release position K2, and the single pipe Z is inserted between the movable clamp body 13 and the fixed clamp body 12 from the pipe attachment / detachment gap GP. In the first and second resin clamps X1, X2, the single pipe Z is positioned between the movable clamp body 13 and the fixed clamp body 12 through the pipe attachment / detachment gap GP, as shown in Figures 23 to 25, and is inserted (press-fitted) into the first arc recess 21 of the fixed clamp body 12. 24 and 25, in the first and second resin clamps X1, X2, the single pipe Z is inserted (pressed) into the first arc recess 21 while the pipe outer circumferential surface ZA is in contact with and pressed against the respective arc surface ends 25a, 25B of the first arc surface 25, elastically deforming the respective arc surface ends 25a, 25b of the first arc surface 25, and is brought into contact with the first arc surface 25. In the first and second resin clamps X1, X2, when the single pipe Z is pressed against the respective arc surface ends 25a, 25b of the first arc surface 25, the respective arc surface ends 25a, 25b of the first arc surface 25 are pushed apart with the first and second recessed grooves 22, 23 as base points (fulcrums) and elastically deformed. By forming the fixed clamp body 12 (first arcuate recess 21, first arcuate surface 25) from synthetic resin, the arcuate surface ends 25a, 26b of the first arcuate surface 25 can be elastically deformed to press the single pipe Z into the first arcuate recess 21. As a result, in the first and second resin clamps X1, X2, the fixed clamp body 12 abuts the first arcuate surface 25 against the pipe outer circumferential surface Za of the single pipe Z. The fixed clamp body 12 presses each elastically deformed arcuate surface end 25a, 25b against the pipe outer circumferential surface Za of the single pipe Z in the first arcuate recess 21, gripping the single pipe Z with the first arcuate recess 21 (first arcuate surface 25).

[0069] In the first and second resin clamps X1, X2, when the single pipe Z is positioned between the movable clamp body 13 and the fixed clamp body 12, the movable clamp body 13 rotates in rotation B (the other direction / clockwise direction in Figure 25) toward the fixed clamp body 12, rotating the movable clamp body 13 to the clamp position K1. As a result, the movable clamp bodies 13 of the first and second resin clamps X1, X2 are rotated from the release position K2 to the clamp position K1.

[0070] 26, the movable clamp body 13 of the first and second resin clamps X1, X2 sandwich and hold the single pipe Z between the movable clamp body 13 and the fixed clamp body 12 at the clamp position K1. At the clamp position K1, the movable clamp body 13 aligns (is positioned) the second center O2 of the second arcuate surface 41 with the first center O1 of the first arcuate surface 25 (and the pipe center of the single pipe Z), and holds the single pipe Z between the movable clamp body 13 and the fixed clamp body 12.

[0071] As shown in Figure 26, when the movable clamp body 13 of the first and second resin clamps X1, X2 is at the clamping position K1 of the movable clamp body 13, the single pipe Z is inserted into the second arc recess 35 and the pipe outer surface Za of the single pipe Z is abutted against the second arc surface 41. In the first and second resin clamps X1, X2, the single pipe Z inserted (pressed) into the first arc recess 21 is inserted into the second arc recess 35 by rotating the movable clamp body 13 toward the fixed clamp body 12, and the pipe outer surface Za is positioned in contact with the second arc surface 41.

[0072] 26, the movable clamp bodies 13 of the first and second resin clamps X1, X2 are positioned at the clamp position K1 with the guide protrusions 24 of the fixed clamp body 12 inserted into the guide grooves 39. The movable clamp body 13 inserts the guide protrusions 24 into the guide grooves 39 by rotating from the release position K2 towards the fixed clamp body 12. The guide protrusions 24 come into contact with the guide grooves 39 and are inserted into the guide grooves 39. As a result, the movement of the movable clamp bodies 13 of the first and second resin clamps X1, X2 in the barricade thickness direction TA is restricted by the abutment of the guide recessed grooves 39 and the guide projections 24 as shown in FIG.

[0073] As shown in Figure 26, the movable clamp bodies 13 of the first and second resin clamps X1, X2 are positioned at the clamp position K1 of the movable clamp body 13 with the other movable clamp end face 13B facing (opposing) the protruding end face 12C of the fixed clamp body 12, and the second fixed protrusion 46 facing (opposing) the first fixed protrusion 45. The other movable clamp end face 13B of the movable clamp body 13 and the guide projection 24 (protruding end face 12C) of the fixed clamp body 12 face each other with a small gap (gap) in the barricade width direction HA at the clamp position K1 of the movable clamp body 13 as shown in Fig. 26. The first fixed projection 45 and the second fixed projection 46 face each other with a small gap (gap) in the barricade width direction HA at the clamp position K1 of the movable clamp body 13 as shown in Fig. 26.

[0074] As shown in Figures 27 and 28, the fixing devices 14 of the first and second resin clamps X1, X2 press the fixed clamp body 12 and the movable clamp body 13 against the outer peripheral surface Za of the single pipe Z at the clamping position K1 of the movable clamp body 13, thereby fixing the movable clamp body 13 to the fixed clamp body 12.

[0075] As shown in FIG. 26, when the movable clamp body 13 is in the clamping position K1, the fixing device 14 of the first and second resin clamps X1, X2 rotates in direction B (the other direction / clockwise direction in FIG. 26) toward the first fixed protrusion 45 (fixed clamp body 12) with the link 51 and the link lever 52 facing the first fixed protrusion 45 (fixed clamp body 12). In the first and second resin clamps X1, X2, the link lever 52 is rotated toward the first fixed protrusion 45 (fixed clamp main body 12) as shown in FIG. 27, so that the link 51 and the first and second fixed protrusions 45, 46 are positioned (inserted / stored) in the lever hole 54 and the fixed shaft portion 55 is inserted into the fixed groove 47 (fixed groove 47 formed in the first fixed protrusion 45).

[0076] When the fixing shaft portion 55 of the fixing device 14 of the first and second resin clamps X1, X2 is inserted into the fixing groove 47 at the clamping position K1 of the movable clamp body 13, the link 51 and the link lever 52 rotate in a direction A (one direction / counterclockwise direction in Figure 27) toward the movable clamp body 13. As shown in FIG. 28, when the movable clamp body 13 is at the clamping position K1, the fixing device 14 of the first and second resin clamps X1, X2 presses the fixed shaft portion 55 against the fixed groove 47 (first fixed protrusion 45) by rotating the link 51 and the link lever 52 toward the movable clamp body 13. In the first and second resin clamps X1, X2, as shown in Figure 28, the fixed shaft portion 55 is pressed against the groove surface 47A of the fixed groove 47 from the barricade width direction HA by rotation of the link 51 and the link lever 52 toward the movable clamp body 13, thereby pulling the first fixed protrusion 45 toward the second fixed protrusion 46 (movable clamp body 13). As a result, the fixing devices 14 of the first and second resin clamps X1, X2 pull the first fixing protrusion 45 toward the second fixing protrusion 46 at the clamp position K1 of the movable clamp body 13, thereby pressing the fixed clamp body 12 and the movable clamp body 13 against the single pipe Z. As shown in Figure 28, the fixing device 14 of the first and second resin clamps X1, X2 inserts the fixed shaft portion 55 into the fixed groove 47 at the clamping position K1 of the movable clamp body 13, and by rotating the link 51 and the link lever 52 toward the movable clamp body 13, the first fixed protrusion 45 is attracted toward the second fixed protrusion 46 from the barricade width direction HA, and a pulling force F1 (tensile force) acts on the fixed clamp body 12 (the fixed clamp body 12 formed integrally with the first fixed protrusion 45).

[0077] The fixed clamp bodies 12 of the first and second resin clamps X1, X2 elastically deform toward the inside of the first arcuate surface 25 (single pipe Z) due to the pulling force F1 (tensile force) applied by the fixing device 14 at the clamping position K1 of the movable clamp body 13, and press the first arcuate surface 25 against the outer pipe surface Za of the single pipe Z.

[0078] As shown in Figure 28, at the clamping position K1 of the movable clamp body 13, the fixed clamp bodies 12 of the first and second resin clamps X1, X2 elastically deform toward the inside of the first arc-shaped surface (single pipe Z) due to a pulling force F1 (tensile force) with the first and second grooves 22, 23 as base points (fulcrums), and press the first arc-shaped surface 25 against the outer pipe surface Za of the single pipe Z. By arranging (forming) the first and second grooves 22, 23 that open into the first arc surface 25, the fixed clamp body 12 can easily elastically deform with the first and second grooves 22, 23 as base points, and the first arc surface 25 can be pressed against the outer pipe surface Za of the single pipe Z.

[0079] As shown in Figure 28, when a pulling force F1 is applied to the fixed clamp body 12 by the fixing device 14 at the clamping position K, the movable clamp body 13 of the first and second resin clamps X1, X2 receives a reaction force F2 (repulsion force) toward the fixed clamp body 12, and elastically deforms toward the inside of the second arcuate surface 41 (single pipe Z) and presses the second arcuate surface 41 against the outer pipe surface Za of the single pipe Z. At the clamping position K, the movable clamp bodies 13 of the first and second resin clamps X1, X2 elastically deform toward the inside of the second arcuate surface 41 (single pipe Z) due to the reaction force F2 (repulsion force) with the third groove 38 as the base point (fulcrum) and press the second arcuate surface 41 against the outer pipe surface Za of the single pipe Z. By arranging (forming) a third groove 38 that opens into the second arc surface 41, the movable clamp body 13 can easily elastically deform with the third groove 38 as a base point, and the second arc surface 41 can be pressed against the outer pipe surface Za of the single pipe Z.

[0080] As shown in Figure 28, when the fixing device 14 of the first and second resin clamps X1, X2 is at the clamping position K1 of the movable clamp body 13, the fixed shaft portion 55 is inserted into the fixed groove 47, and the link 51 and the link lever 52 are rotated toward the movable clamp body 13 until the link lever 52 abuts against the movable clamp outer peripheral surface 13F, thereby rendering the link 51 and the link lever 52 non-rotatable. As a result, the fixing device 14 of the first and second resin clamps X1, X2 abuts the link lever 52 against the movable clamp outer surface 13F at the clamp position K1 of the movable clamp body 13, thereby preventing the link 51 and link lever 52 from rotating, thereby fixing the movable clamp body 13 to the fixed clamp body 12.

[0081] In this way, the first and second resin clamps X1, X2 clamp the single pipe Z between the fixed clamp body 12 and the movable clamp body 13 at the clamp position K1 of the movable clamp body 13, and fix the single pipe to the barricade leg body Z (barricade leg body 1) by pressing the fixed clamp body 12 and the movable clamp body 13 against the single pipe Z with the fixing device 14.

[0082] As shown in Figure 28, the fixing device X4 of the first and second resin clamps X1, X2 rotates the link lever 52 abutting the movable clamp outer surface 13F and the link 51 in the direction B toward the fixed clamp body 12 from a state in which the movable clamp body 13 is fixed to the fixed clamp body 12, thereby removing the fixed shaft portion 55 from the fixed groove 47. As a result, the fixing members 14 of the first and second resin clamps X1, X2 release the fixing of the movable clamp body 13 to the fixed clamp body 12.

[0083] The movable clamp bodies 13 of the first and second resin clamps X1, X2 rotate in a direction A away from the fixed clamp body 12 from the released state of the movable clamp body 13 as shown in FIG. As a result, the movable clamp bodies 13 of the first and second resin clamps X1, X2 are rotated in a direction A away from the fixed clamp body 12 as shown in FIG. 25, from the clamp position K1 to the release position K2. In the release position K2, the movable clamp body 13 is spaced apart from the fixed clamp body 12 and is positioned with a pipe attachment / detachment gap GP between the movable clamp body 13 (the other movable clamp end face 13B) and the fixed clamp body 12 (protruding end face 12C).

[0084] In the first and second resin clamps X1, X2, the single pipe Z is pulled out of the first arcuate recess 21 when the movable clamp body 13 is placed in the release position K2, as shown in FIGS. The single pipe Z is pulled out of the first arcuate recess 21 while the arcuate surface ends 25a, 25b of the first arcuate surface 25 are elastically deformed. The single pipe Z pulled out from the first arcuate recess 21 is taken out from the first and second resin clamps X1, X2 through the pipe attachment / detachment gap GP at the release position K2 of the movable clamp body 13, as shown in FIG.

[0085] In FIG. 29, a barricade leg Y on which first and second resin clamps X1, X2 are arranged, together with two single pipes Z1, Z2, constitutes a barricade W using a pair of barricade legs Y, Y.

[0086] As shown in Fig. 29, each barricade leg Y,Y is disposed so that the openings 5 ​​of each barricade leg body 1 (each barricade leg body Y,Y) face each other. Each barricade leg body Y,Y is erected on the ground GR with each leg 3,4 of each barricade leg body 1 abutting against the ground GR. Each barricade leg body Y,Y is disposed side by side (parallel) with a gap between each barricade leg body 1.

[0087] As shown in FIG. 29, each of the single pipes Z1, Z2 is installed between each of the barricade legs Y, Y (each of the barricade leg bodies 1) and supported by each of the barricade legs Y, Y (each of the barricade leg bodies 1). The single pipe Z1 is installed between the first resin clamps X1, X1 of each barricade leg Y, Y and fixed to each barricade leg Y, Y (each barricade leg body 1) by each of the first resin clamps X1, X1. The single pipe Z1 is fixed to each barricade leg Y, Y (each barricade leg body 1) by each of the first resin clamps X1, X1 in the same manner as described in Figs. 23 to 28. The single pipe Z2 is installed between the second resin clamps X2, X2 of each barricade leg Y, Y and fixed to each barricade leg Y, Y (each barricade leg body 1) by each of the first resin clamps X2, X2. The single pipe Z2 is fixed to each barricade leg Y, Y (each barricade leg body 1) by each of the first resin clamps X2, X2 in the same manner as described in Figs. 23 to 28. In this manner, the barricade W is formed by fixing each of the single pipes Z1, Z2 to each of the barricade legs Y, Y (each of the barricade leg bodies 1) with the first and second resin clamps X1, X2.

[0088] The resin clamp X (first and second resin clamps X, X2) may also employ a configuration including a fixing device 61 as shown in FIGS.

[0089] As shown in Figures 30 to 32, the fixing devices 61 of the first and second resin clamps X1, X2 press the fixed clamp body 12 and the movable clamp body 13 against the single pipe Z at the clamping position K1 of the movable clamp body 13, thereby fixing the movable clamp body 13 to the fixed clamp body 12. The fixing device 61 of the first and second resin clamps X1, X2 releases the fixing of the movable clamp body 13 from the fixed clamp body 12 at the clamp position K1 of the movable clamp body 13. In the first and second resin clamps X1, X2, the fixing device 61 is formed of synthetic resin. In the first and second resin clamps X1 and X2, the fixing device 61 has a first fixing protrusion 45, a second fixing protrusion 46, a fixing groove 47 and a fixing lever 62.

[0090] In the fastener 61 of the first and second resin clamps X1, X2, the first fixing protrusion 45 has an arc-shaped outer peripheral surface 45B that protrudes (swells) outward, as shown in FIG.

[0091] In the first and second resin clamps X1, X2, the fixed lever 62 is formed into a long frame made of synthetic resin and is rotatably supported by the second fixed protrusion 46. The fixed lever 62 is disposed on the second fixed protrusion 46 with one lever end 62A side in the lever longitudinal direction LW rotatably supported by the second fixed protrusion 46. In the first and second resin clamps X1 and X2, the fixed lever 62 is pivotally supported by the second fixed protrusion 46 about a lever rotation center line m that is parallel to the shaft center line a of the shaft portion 11.

[0092] In the first and second resin clamps X1, X2, the fixed lever 62 has a lever hole 63 and a fixed shaft portion 64. The lever hole 63 has a hole width (wide hole width) larger than the projection width TP of the first and second fixed projections 45, 46 in the lever width direction HW (barricade thickness direction TA) perpendicular to the lever longitudinal direction LW, and extends between the lever ends 62A, 62B in the lever longitudinal direction LW. The lever hole 63 has a hole length in the lever longitudinal direction LW, and extends between the lever ends 62A, 62B. Thereby, the fixing levers 62 of the first and second resin clamps X1, X2 allow the first and second fixing protrusions 45, 46 to be freely inserted (housed) in the lever holes 63.

[0093] In the first and second resin clamps X1, X2, the fixed shaft portion 64 is disposed in the lever longitudinal direction LW at a distance slightly shorter than the center distance Pc from the rotation center line m, and is formed integrally with the fixed lever 62, as shown in Figures 30 to 32. The fixed shaft portion 64 is disposed in the lever hole 63 with the fixed shaft center line n parallel to the lever rotation center line m. The center distance Pc (center distance) is the distance (interval) between the lever rotation center axis m and the groove hole center line e of the fixed groove 47 at the clamp position K1 of the movable clamp body 13.

[0094] The fixing device 61 of the first and second resin clamps X1, X2 rotates in a direction B (the other direction / clockwise direction in FIG. 30) toward the first fixed protrusion 45 (fixed clamp body 12) at the clamp position K1 of the movable clamp body 13. In the first and second resin clamps X1, X2, the fixed lever 62 rotates toward the first fixed protrusion 45, inserting (storing) the first and second fixed protrusions 45, 46 into the lever hole 63, and abutting the fixed shaft portion 64 (shaft outer peripheral surface) against the arcuate outer peripheral surface 45B of the first fixed protrusion 45. In the first and second resin clamps X1, X2, as shown in Figures 30 to 32, as the fixing lever 62 rotates in the other direction B, the fixing shaft portion 64 slides over the arcuate outer peripheral surface 45B of the first fixing protrusion 45, overcomes the first fixing protrusion 45 (arcuate outer peripheral surface 45B), and is inserted and fitted into the fixing groove 47.

[0095] As shown in Figure 30, when the fixed shaft portions 64 of the first and second resin clamps X1, X2 are fitted into the fixed groove 47 at the clamping position K1 of the movable clamp body 13, they are pressed against the groove surface 47A of the fixed groove 47 from the barricade width direction HA by the fixed lever 62 supported on one lever end 62A side, thereby pulling the first fixed protrusion 45 toward the second fixed protrusion 46. As a result, the fixing devices 61 of the first and second resin clamp resins X1, X2, as described in Figure 28, apply an attractive force F to the fixed clamp body 12 at the clamping position K1 of the movable clamp body 13, generating a reaction force F2 (repulsion force) in the movable clamp body 13, thereby pressing the fixed clamp body 12 (first arcuate surface 25) and the movable clamp body 13 (second arcuate surface 41) against the single pipe Z (pipe outer peripheral surface ZA) and fixing the movable clamp body 13 to the fixed clamp body 12.

[0096] As shown in Figure 30, the fixing device 61 of the first and second resin clamps X1, X2 rotates the fixed lever 62 in direction A (one direction / counterclockwise direction in Figure 30) toward the movable clamp body 13 from a state in which the movable clamp body 13 is fixed to the fixed clamp body 12, thereby removing the fixed shaft portion 64 from the fixed groove 47 and removing the first and second fixed protrusions 45, 46 from the lever hole 63. As a result, the fixing members 61 of the first and second resin clamps X1, X2 release the fixing of the movable clamp body 13 to the fixed clamp body 12.

[0097] The resin clamp X (first and second resin clamps X, X2) may also employ a configuration including a fixture 71 as shown in FIGS.

[0098] As shown in Figures 33 to 35, the fixing devices 71 of the first and second resin clamps X1, X2 press the fixed clamp body 12 and the movable clamp body 13 against the single pipe Z at the clamping position K1 of the movable clamp body 13, thereby fixing the movable clamp body 13 to the fixed clamp body 12. The fixing device 71 of the first and second resin clamps X1, X2 releases the fixing of the movable clamp body 13 from the fixed clamp body 12 at the clamp position K1 of the movable clamp body 13. In the first and second resin clamps X1, X2, the fixing device 71 is formed of synthetic resin and metal (iron, stainless steel). In the first and second resin clamps X1 and X2, the fixture 71 has a first fixing protrusion 45, a second fixing protrusion 46, a guide lever 72, and a bolt 73.

[0099] In the fasteners 71 of the first and second resin clamps X1, X2, the first fixing projection 45 has an outer circumferential flat surface 45C parallel to the protruding end surface 12C in the barricade width direction HA, as shown in Figs.

[0100] In the first and second resin clamps X1, X2, the guide lever 72 is formed in a long frame made of synthetic resin and rotatably supported by the second fixed protrusion 46. The guide lever 72 is disposed on the second fixed protrusion 46 with one lever end 72A side in the lever longitudinal direction LX rotatably supported by the second fixed protrusion 46. In the first and second resin clamps X1 and X2, the guide lever 72 is pivotally supported by the second fixed projection 46 about a lever rotation center line s that is parallel to the shaft center line a of the shaft portion 11.

[0101] In the first and second resin clamps X1 and X2, the guide lever 72 has a guide lever hole 74. The guide lever hole 74 has a hole width (wide hole width) larger than the projection width TP of the first and second fixed projections 45 and 46 in the lever width direction HX (barricade thickness direction TA) perpendicular to the lever longitudinal direction LX, and extends between the lever ends 72A and 72B in the lever longitudinal direction LX. As shown in Figures 33 and 35, the guide lever hole 74 has a hole length longer than the distance (spacing) between the first and second fixed projections 45 and 46 at the clamp position K1 of the movable clamp body 13, and extends between the lever ends 72A and 72B. Thereby, the guide levers 72 of the first and second resin clamps X1, X2 allow the first and second fixing protrusions 45, 46 to be freely inserted (housed) in the guide lever holes 74.

[0102] In the first and second resin clamps X1, X2, the bolt 73 is made of a metal such as iron or stainless steel, and has a head 73A and a screw shaft 73B. As shown in Figs. 33 and 35, the bolt 73 is disposed on the other lever end 72B side of the guide lever 72 and screwed into the guide lever 72. The bolt 73 is disposed with the screw shaft 73B facing the lever longitudinal direction LX, and the screw shaft 73B is screwed into the other lever end 72B side of the guide lever 72. The bolt 73 is disposed with the screw shaft 73B protruding into the guide lever hole 74. The bolt 73 is disposed with the screw shaft 73B freely movable forward and backward in the lever longitudinal direction LX.

[0103] The fixing device 71 of the first and second resin clamps X1, X2 rotates in a direction B (the other direction / clockwise direction in Figure 33) toward the first fixed protrusion 45 (fixed clamp body 12) at the clamp position K1 of the movable clamp body 13. In the first and second resin clamps X1, X2, the guide lever 72 rotates toward the first fixed protrusion 45 to insert (store) the first and second fixed protrusions 45, 46 into the guide lever hole 74, so that the outer peripheral plane 45C of the first fixed protrusion 45 faces (opposes) the screw shaft 73B (bolt 73).

[0104] In the first and second resin clamps X1, X2, when the fixing device 71 faces the outer peripheral flat surface 45C of the first fixing protrusion 45 against the screw shaft 73B, the head 73A of the bolt 73 is rotated in one direction to abut the screw shaft 73B against the outer peripheral flat surface 45C of the first fixing protrusion 45. As shown in Figures 33 to 35, the bolts 73 of the first and second resin clamps X1, X2 are rotated in one direction at the clamp position K1 of the movable clamp body 13 to press the screw shaft 73B against the outer peripheral flat surface 45C of the first fixed protrusion 45, thereby fixing the movable clamp body 13 to the fixed clamp body 12. The fixing device 71 of the first and second resin clamps X1, X2 presses the first fixed protrusion 45 toward the second fixed protrusion 46 by rotating one side of the bolt 73, and applies a pressing force F3 to the fixed clamp body 12. In the first and second resin clamps X1, X2, the movable clamp body 13 receives a reaction force F4 (repulsion force) of the pressing force F3 acting on the fixed clamp body 12 at the clamp position K1. As explained in Figure 28, the fixing devices 71 of the first and second resin clamps X1, X2 apply a pressing force F3 to the fixed clamp body 12 at the clamping position K1 of the movable clamp body 13, generating a reaction force F4 (repulsion force) on the movable clamp body 13, thereby pressing the fixed clamp body 12 (first arcuate surface 25) and the movable clamp body 13 (second arcuate surface 41) against the single pipe Z and fixing the movable clamp body 13 to the fixed clamp body 12.

[0105] As shown in Figure 33, the fixing device 71 of the first and second resin clamps X1, X2 is configured such that, from a state in which the movable clamp body 13 is fixed to the fixed clamp body 12, the bolt 73 is rotated in the other direction to move the screw shaft 73B away from the outer peripheral plane 45C of the first fixed protrusion 45. With the screw shaft 73B spaced away from the outer peripheral plane 45C of the first fixed protrusion 45, the fixing device 71 of the first and second resin clamps X1, X2 rotates the guide lever 72 in direction A (one direction / counterclockwise in Figure 33) toward the movable clamp body 13, thereby removing the first and second fixed protrusions 45, 46 from the guide lever hole 74. As a result, the fixing members 71 of the first and second resin clamps X1, X2 release the fixing of the movable clamp body 13 to the fixed clamp body 12. [Industrial Applicability]

[0106] The present invention is ideally suited for use with barricade legs that support single pipes. [Explanation of symbols]

[0107] X Plastic Clamp X1 1st resin clamp X2 Second resin clamp Y Barricade Legs Z Single Tube ZA Pipe outer surface 1 Barricade Legs 4 Fixtures 11 Shaft 12 Fixed clamp body 13 Movable clamp body P1 Clamp position P2 release position

Claims

1. A barricade leg body that is made of synthetic resin and has a barricade thickness in a barricade thickness direction and supports a single pipe, comprising a resin clamp that is disposed on the barricade leg body, a fixed clamp body having a thickness in the thickness direction of the barricade, being integrally formed of synthetic resin with the barricade leg body, and having an arc recess, a horizontal groove portion, and a vertical groove portion; a movable clamp body formed of a synthetic resin and arranged in parallel with the fixed clamp body; A fixing device, The arc recess is A groove is formed on the fixing clamp body in a thickness direction of the barricade, the groove penetrates the fixing clamp body in an arc shape, The horizontal groove portion is The barricade is provided with a groove depth extending radially outward from the arc surface of the arc recess, the groove depth being formed through the fixed clamp body in the thickness direction of the barricade, and the groove depth being formed on the arc surface of the arc recess. The vertical groove portion is The groove is formed continuously with the lateral groove portion. The groove penetrates the fixed clamp body in the radial direction of the arc surface, and opens on the fixed clamp thickness end surface of the fixed clamp body with a groove depth in the barricade thickness direction; The movable clamp body is The barricade leg is pivotally supported by the barricade leg. a clamping position where the single pipe is sandwiched and held between the arcuate surface of the fixing clamp body; The clamp is rotated between the fixed clamp body and a release position that is spaced apart by a pipe attachment / detachment interval that exceeds the pipe outer diameter of the single pipe, The fixing device is In the clamping position of the movable clamp body, The circular arc surface of the fixed clamp body and the movable clamp body are pressed against the single pipe to fix the movable clamp body to the fixed clamp body or release the fixation of the movable clamp body to the fixed clamp body. A resin clamp characterized by:

2. A barricade leg body that is made of synthetic resin and has a barricade thickness in a barricade thickness direction and supports a single pipe, comprising a resin clamp that is disposed on the barricade leg body, a fixed clamp body having a thickness in the thickness direction of the barricade, being integrally formed with the barricade leg body from a synthetic resin, the fixed clamp body having a first arcuate recess, a horizontal recessed groove portion, and a vertical recessed groove portion; a movable clamp body formed of synthetic resin having a thickness in the thickness direction of the barricade, arranged in parallel with the fixed clamp body, and having a second arcuate recess and a recessed groove; A fixing device, The first arcuate recess is A groove is formed on the fixing clamp body in a thickness direction of the barricade, the groove penetrates the fixing clamp body in an arc shape, The horizontal groove portion is a groove depth extending radially outward from the first arc surface of the first arc recess, the groove depth being formed on the first arc surface of the first arc recess, the groove depth being formed on the first arc surface of the first arc recess, The vertical groove portion is The groove is formed continuously with the lateral groove portion. A groove is formed in the thickness direction of the barricade, the groove penetrates the fixed clamp body, and the groove has a depth in the thickness direction of the barricade and opens in the thickness end surface of the fixed clamp body. The second arcuate recess is A barricade is formed on the movable clamp body by penetrating the movable clamp body in an arc shape in the thickness direction of the barricade, The groove is a groove depth extending radially outward from the second arc surface of the second arc recess, the groove depth being formed on the second arc surface of the second arc recess, the groove depth being formed on the second arc surface of the second arc recess, the groove depth being formed on the second arc surface of the second arc recess, The movable clamp body is The barricade leg is pivotally supported by the barricade leg. a clamp position where the single pipe is sandwiched and gripped between the first arcuate surface of the fixed clamp body and the second arcuate surface of the movable clamp body; The clamp is rotated between the fixed clamp body and a release position that is spaced apart by a pipe attachment / detachment interval that exceeds the pipe outer diameter of the single pipe, The fixing device is In the clamping position of the movable clamp body, The first arcuate surface of the fixed clamp body and the second arcuate surface of the movable clamp body are pressed against the single pipe to fix the movable clamp body to the fixed clamp body or release the fixation of the movable clamp body to the fixed clamp body. A resin clamp characterized by:

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