clamp

Abstract

To provide a clamp capable of shortly, easily and reliably fixing a pipe and a saddle joint to each other.SOLUTION: A clamp 3 for holding a saddle joint 1 arranged on the outer peripheral face of a main pipe 10 includes a hook member 31 to be hooked on a first saddle flange 16 of the saddle joint 1, a fastening member 32 having one end provided on the hook member 31 and arranged in the peripheral direction of the main pipe 10, and a fixing mechanism 33 on which the other end of the fastening member 32 is provided for fastening and fixing the fastening member 32 to the main pipe 10, the fixing mechanism 33 including a fixing part 33a arranged on a second saddle flange 17 of the saddle joint 1, a support part 33b supporting the other end of the fastening member 32, and a lever 33d to be rotated to make the support part 33b come close to the fixing part 33a.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a clamp. [Background technology]

[0002] Generally, when connecting a branch pipe to a polyethylene pipe (hereinafter referred to as the pipe or main pipe) that carries tap water or gas, this is done using, for example, a saddle fitting or a saddle-equipped branch valve, which has a saddle body that is fused to the main pipe and a branch pipe section that serves as the connection point for the branch pipe. For example, saddle joints are usually configured as EF (electrofusion) joints, which are configured to melt the interface between the saddle joint and the main pipe by passing electricity through an electric heating wire placed inside the saddle body, causing it to heat up and join the two.

[0003] Conventionally, to join a saddle joint to a main pipe, the saddle joint is first brought into contact with the main pipe and fixed in place with a dedicated saddle joint fixing clamp. In this state, an electric heating wire is passed through to join the saddle joint and the main pipe. The molten joint is then solidified, and the clamp is then removed from the saddle joint and the main pipe, completing the process. Examples of such clamps include those shown in Patent Documents 1 and 2.

[0004] The clamp in Patent Document 1 is fixed by wrapping a chain around the outer circumferential surface of a pipe and adjusting the tightening (length) of the chain with a lever. Furthermore, the clamp in Patent Document 2 secures the saddle by hooking the saddle retainer onto the saddle flange and tightening it with a screw. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-40898 [Patent Document 2] Patent No. 6799459 Summary of the Invention [Problem to be solved by the invention]

[0006] The clamp described in Patent Document 1 requires the lever to be moved back and forth multiple times when adjusting the tightening of the chain. The clamp described in Patent Document 2 requires a large amount of screw rotation to tighten the chain, and as the tightening progresses, the torque to turn the screw increases, requiring a large force. The above-mentioned conventional clamps have the above problems.

[0007] The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a clamp that can easily and reliably fix a pipe and a saddle joint in a short time. [Means for solving the problem]

[0008] In order to solve the above problems, the present invention proposes the following means. The clamp of the present invention is a clamp that holds a saddle joint placed on the outer peripheral surface of a main pipe, and comprises: a hooking member that hooks onto the first saddle flange of the saddle joint; a fastening member that has one end attached to the hooking member and is placed circumferentially around the main pipe; and a fixing mechanism that is attached to the other end of the fastening member and fastens and fixes the fastening member to the main pipe, wherein the fixing mechanism comprises a fixing part that is placed on the second saddle flange of the saddle joint, a support part that supports the other end of the fastening member, and a lever that rotates to bring the support part closer to the fixing part.

[0009] According to this invention, a fixing mechanism is provided that fastens and fixes the clamping member to the main pipe. In other words, the positions of the main pipe and the clamping member can be easily adjusted before the clamping member is fastened to the main pipe by the fixing mechanism. In addition, the fixing mechanism rotates a lever to bring the support portion closer to the fixing portion and tighten the clamping member. By rotating the lever after adjusting the positions of the main pipe and the clamping member, the amount of lever rotation required to tighten the clamping member can be kept to a minimum. Therefore, the fixing work can be performed easily and in a short time.

[0010] The fixing mechanism may further include a shaft portion on which the fixing portion and the support portion are arranged, and the support portion may be movable in the axial direction of the shaft portion.

[0011] According to this invention, the support portion is movable in the axial direction of the shaft portion. In other words, the distance between the fixed portion and the support portion can be adjusted by moving the support portion along the axial direction of the shaft portion. This allows the tightening amount of the tightening member to be adjusted to match the size of the saddle fitting and main pipe. Therefore, saddle fittings and main pipes of different sizes can be held with a single type of saddle fitting. Furthermore, even if there is variation in the sizes of the saddle fittings and main pipes, the optimal tightening force can always be ensured.

[0012] The support portion may include a female thread portion, the shaft portion may include a male thread portion, and the support portion may move the shaft portion by rotating while being threadedly engaged with the shaft portion.

[0013] According to this invention, the support part moves the shaft part by rotating while threadedly engaged with the shaft part, which not only makes it easier to adjust the tightening amount of the tightening member, but also makes it less likely for the support part and the shaft part to become misaligned due to external forces.

[0014] In addition, the support portion may be provided with a stopper portion that can be fixed to and released from the shaft portion, and when the stopper portion is fixed, the support portion may be fixed to the shaft portion, and when the stopper portion is released, the support portion may be able to slide on the shaft portion.

[0015] According to this invention, the support part has a stopper part that can be fixed to and released from the shaft part, and when the stopper part is released, the support part can slide on the shaft part, and when the stopper part is fixed, the support part is fixed to the shaft part. This makes it easier to adjust the tightening amount of the tightening member and can be done in a shorter time. [Effects of the Invention]

[0016] According to the present invention, it is possible to provide a clamp that can easily and reliably fix a pipe and a saddle joint in a short time. [Brief explanation of the drawings]

[0017] [Figure 1] This is a front view of the saddle joint attached to the main pipe and secured with a clamp. [Figure 2] FIG. 2 is a side view taken in the direction II shown in FIG. [Figure 3] FIG. 2 is a side view taken in the direction III shown in FIG. [Figure 4] FIG. [Figure 5] FIG. 5 is a side view of FIG. 4 in the V direction. [Figure 6] 1 is an overall view of a clamp according to the present invention; [Figure 7] 10 is a modified example of a clamp according to the present invention. [Figure 8] FIG. 8 is a cross-sectional view taken along the line VIII-VIII in FIG. 7. [Figure 9] This is a first state of the locking mechanism. [Figure 10] This is the second state of the locking mechanism. [Figure 11] This is the third state of the locking mechanism. [Figure 12] FIG. 10 is an enlarged perspective view of a second saddle flange of the saddle joint. [Figure 13] This is the fixed state of the stopper portion of the support portion. [Figure 14] This is the release state of the stopper portion of the support portion. [Figure 15] This is the first diagram of the process of fixing the saddle joint and the main pipe using a clamp. [Figure 16] This is Figure 2, showing the process of fixing the saddle joint and main pipe using a clamp. DETAILED DESCRIPTION OF THE INVENTION

[0018] Hereinafter, a clamp according to an embodiment of the present invention will be described with reference to the drawings. As shown in Figures 1, 2, and 3, a saddle fitting 1 is a fitting that connects a branch pipe 12 (a branch pipe) to a main pipe 10 (a pipe) through which, for example, tap water or gas flows. The saddle fitting 1 is usually configured as an EF fitting (electrofusion fitting, electrofusion joint). The saddle fitting 1 is configured so that a saddle 2 is brought into close contact with the main pipe 10, and an electric heating wire 4 (see Figure 5) provided inside the saddle 2 is heated, thereby fusing the saddle 2 and the main pipe 10. By fusing the saddle 2 and the main pipe 10, the branch pipe 12 is connected to the branch pipe portion 18 of the saddle 2, and the branch pipe 12 is connected to the main pipe 10.

[0019] The saddle joint 1 includes a saddle 2 fused to a first side of the main pipe 10, and a clamp 3 (saddle clamp, saddle jig) disposed on a second side of the main pipe 10. The main pipe 10 is clamped between the saddle 2 and the clamp 3. In this state, the main pipe 10 is tightly attached to the saddle 2. Hereinafter, the axial direction of the main pipe 10 may be referred to as the "axial direction," the radial direction of the main pipe 10 as the "radial direction," and the circumferential direction of the main pipe 10 as the "circumferential direction." In addition, one side in a direction perpendicular to the axis of the main pipe 10 will be referred to as the "first side," and the other side will be referred to as the "second side" opposite the first side.

[0020] As shown in FIGS. 1, 4, and 5, the saddle 2 has a saddle body 15, a first saddle flange 16, a second saddle flange 17, and a branch pipe portion . The saddle body 15 is curved with a radius R along the main pipe 10 and is fused to a first outer peripheral surface 10a, which is the outer peripheral surface of the first side of the main pipe 10. A circular hole (not shown) is formed in the center of the saddle body 15 to allow communication between the main pipe 10 and the branch pipe 12. A branch pipe section 18 is formed in the saddle body 15 along the outer peripheral edge of the circular hole. The branch pipe section 18 protrudes from the outer peripheral edge of the circular hole toward the radial outside (first side) of the main pipe 10. The saddle body 15 is provided with terminals 5 on both sides of the branch pipe portion 18 in the axial direction. The terminals 5 are connected to heating wires 4 embedded in the saddle body 15.

[0021] The saddle body 15 is formed in an arc shape with a radius R and substantially the same curvature as the main pipe 10 so that it can be fused to the main pipe 10. The saddle body 15 is formed so that substantially the entire inner surface can come into close contact with the first outer peripheral surface 10a of the main pipe 10. A first saddle flange 16 and a second saddle flange 17 are formed on each side edge of the saddle body 15 along the axial direction of the main pipe 10. The first saddle flange 16 and the second saddle flange 17 protrude radially outward from both side ends of the arc shape of the saddle body 15. The saddle body 15, the first saddle flange 16, and the second saddle flange 17 are formed to have an axial length (i.e., axial length) L1. That is, the saddle 2 is formed to have an axial length (i.e., axial length) L1.

[0022] 1 to 3, the saddle 2 is disposed on a first outer circumferential surface 10a of a cylindrical main pipe 10. In this state, the saddle 2 is fixed to the main pipe 10 by a clamp 3. The clamp 3 holds the saddle joint 1 disposed on the first outer circumferential surface 10a of the main pipe 10. As shown in FIG.

[0023] The hooking member 31 is hooked onto the first saddle flange 16 of the saddle joint 1. As shown in FIG. 3, the hooking member 31 is formed in a frame shape that surrounds the first saddle flange 16 from the outside. In other words, the axial length L2 of the hooking member 31 is formed to be greater than the axial length L1 of the first saddle flange 16. The hooking member 31 is preferably made of a resin that is less susceptible to creep deformation, such as polyvinyl chloride resin. Alternatively, a metal member with a protective material such as rubber attached around its periphery may be used. Furthermore, the contact surface between the hooking member 31 and the first saddle flange 16 may be knurled to prevent misalignment.

[0024] The fastening member 32 has one end attached to the hooking member 31 and is disposed in the circumferential direction of the main pipe 10. Specifically, the fastening member 32 is disposed in a curved shape along the second outer peripheral surface 10b, which is the outer peripheral surface of the second side of the main pipe 10. The fastening member 32 may be formed of a roller chain as shown in FIG. 6. When the fastening member 32 is a roller chain, one end of the fastening member 32 is disposed on the hooking member 31. The other end of the fastening member 32 is disposed on the fixing mechanism 33.

[0025] 6, a mounting member 32a is separately provided at the other end of the roller chain tightening member 32, which enables placement on the fixing mechanism 33. It is preferable that this mounting member 32a is rotatably connected to the other end of the roller chain tightening member 32, and that the mounting member 32a is placed on the shaft 33c of the fixing mechanism 33. One end of the fastening member 32, which is a roller chain, is preferably attached to the hooking member 31 so as to be rotatable relative to the hooking member 31, similar to the attachment between the fastening member 32 and the attachment member 32a.

[0026] The fastening member 32 may be formed of a flexible material, as shown in FIG. 7. A resin with low creep deformation, such as vinyl chloride resin, is preferably used as the flexible material. When the fastening member 32 is formed of a flexible material, multiple fastening members 32 may be arranged at both axial ends of the saddle joint 1, as shown in FIG. 7. This ensures the strength of the fastening member 32. In this case, connecting portions 321 may be provided to connect the multiple fastening members 32 to each other. When the fastening member 32 is formed of a flexible material, the hooking member 31 and the mounting member 32a may be molded integrally with the fastening member 32. Furthermore, the hooking member 31 may not be frame-shaped, but may have an opening toward the second side. When the fastening member 32 is formed of a flexible material, a protrusion 32p may be provided in the axial center of the fastening member 32, as shown in FIG. 8. This reduces the contact area between the clamping member 32 and the main pipe 10, thereby improving the clamping force of the clamping member 32 on the main pipe 10.

[0027] The fixing mechanism 33 fastens and fixes the fastening member 32 to the main pipe 10. The other end of the fastening member 32 is provided to the fixing mechanism 33. As shown in Fig. 6, the fixing mechanism 33 includes a fixing portion 33a, a support portion 33b, a shaft portion 33c, and a lever 33d. The fixed portion 33a is disposed on the second saddle flange 17 of the saddle joint 1. Specifically, as shown in FIGS. 9, 10, and 11, the fixed portion 33a has a hollow truncated cone shape and is disposed so that the surface of the fixed portion 33a facing the second side is in contact with the surface of the second saddle flange 17 facing the first side. The shank 33c extends from the fixed portion 33a toward the second side. The first-side end of the shank 33c is disposed inside the fixed portion 33a. When the fixed portion 33a is disposed on the second saddle flange 17, the shank 33c penetrates the interior of the second saddle flange 17 as shown in FIG. 9. To enable such an arrangement, a slit 17s is provided in the second saddle flange 17 of the saddle joint 1 as shown in FIG. 12. The shank 33c is detachably disposed in the slit 17s.

[0028] The support portion 33b supports the other end portion of the fastening member 32. Specifically, as shown in Fig. 1, the surface of the mounting member 32a facing the second side is in contact with the surface of the support portion 33b facing the first side. This allows the support portion 33b to support the other end portion of the fastening member 32 via the mounting member 32a. The support portion 33b is movable in the axial direction of the shaft portion 33c.

[0029] The shaft portion 33c is a rod-shaped member on which the fixed portion 33a and the support portion 33b are arranged. Specifically, in the state shown in FIG. 1, the fixed portion 33a is arranged at the end of the first side of the shaft portion 33c. The support portion 33b is arranged at the second side of the shaft portion 33c. In this state, the movement of the support portion 33b in the axial direction of the shaft portion 33c is performed as follows.

[0030] That is, for example, a structure in which the support portion 33b has an internal thread portion, the shaft portion 33c has an external thread portion, and the support portion 33b rotates while being threadedly engaged with the shaft portion 33c, thereby moving the shaft portion 33c can be exemplified. 13 and 14, the support portion 33b may be provided with a stopper portion 33bs that can be fixed to and released from the shaft portion 33c. By using this, the support portion 33b may be fixed to the shaft portion 33c when the stopper portion 33bs is fixed as shown in Fig. 13, and the support portion 33b may be slidable on the shaft portion 33c when the stopper portion 33bs is released as shown in Fig. 14.

[0031] The structure of the stopper portion 33bs is configured as follows: That is, the stopper portion 33bs is arranged movably inside the support portion 33b, and in the normal state (when the stopper is functioning), a part of the stopper portion 33bs protrudes from the support portion 33b. The protrusion of the stopper portion 33bs is preferably achieved by, for example, providing a spring (not shown) between the support portion 33b and the stopper portion 33bs, and using the reaction force of the spring to push the stopper portion 33bs out from the support portion 33b.

[0032] At this time, inside the support portion 33b, the stopper portion 33bs and the shaft portion 33c are in contact with each other at the contact portion 33t. As a result, the reaction force of the spring portion acts perpendicular to the longitudinal direction of the shaft portion 33c via the contact portion 33t of the stopper portion 33bs. As a result, the stopper portion 33bs fixes the support portion 33b and the shaft portion 33c. This state in which the support portion 33b is fixed to the shaft portion 33c is called a fixed state. 14, when a portion of stopper portion 33bs protruding from support portion 33b is pushed into support portion 33b by hand or the like as described above, stopper portion 33bs, which is in contact with shaft portion 33c at contact portion 33t, moves away from shaft portion 33c. This prevents force from stopper portion 33bs from acting on shaft portion 33c, allowing support portion 33b to move in the length direction of shaft portion 33c. This state is called the released state.

[0033] Rotation of lever 33d brings support portion 33b closer to fixed portion 33a. Rotation of lever 33d switches the positional relationship between support portion 33b and fixed portion 33a between a first positional relationship and a second positional relationship in which support portion 33b and fixed portion 33a are closer to each other than in the first positional relationship. This causes fastening member 32 to be tightened by fastening mechanism 33, fixing saddle fitting 1 and main pipe 10. For example, with support portion 33b and fixed portion 33a in the first positional relationship, an operator wraps fastening member 32 around main pipe 10, and then rotates lever 33d to bring support portion 33b and fixed portion 33a into the second positional relationship. As support portion 33b approaches fixed portion 33a, fastening member 32 is tightened, fixing saddle fitting 1 and main pipe 10. The fixing mechanism 33 having the above-mentioned configuration is a so-called quick release. A specific structure for moving the support part 33b closer to the fixed part 33a by the lever 33d in the fixing mechanism 33 will be described below with reference to Figures 9, 10 and 11.

[0034] As shown in FIG. 9, a shaft end portion 33ce is formed at the end portion on the first side of the shaft portion 33c. A through hole 33ch is formed in the shaft end portion 33ce. The through hole 33ch penetrates the shaft end portion 33ce in a direction perpendicular to the shaft portion 33c. The through hole 33ch extends in the pipe axis direction of the main pipe 10. A camshaft 33dc is disposed in the through hole 33ch. The camshaft 33dc extends in the pipe axis direction. The camshaft 33dc is disposed within the fixed portion 33a. A rotating shaft 33ds is connected to the camshaft 33dc. The rotating shaft 33ds extends from the camshaft 33dc in the pipe axis direction. The rotating shaft 33ds is rotatably supported by the fixed portion 33a. The rotating shaft 33ds is rotatable around the axis of the rotating shaft 33ds. One end of the rotating shaft 33ds is connected to the camshaft 33dc. The other end of the rotary shaft 33ds is connected to the lever 33d. The cam shaft 33dc and the rotary shaft 33ds are connected with their respective axial centers offset from each other. This forms a so-called eccentric cam structure. Hereinafter, the part farthest from the rotation center of the rotary shaft 33ds to the circumferential end of the cam shaft 33dc will be referred to as the centrifugal part 33de.

[0035] When the lever 33d is rotated in the first direction A, the centrifugal portion 33de is located at a position away from the first end of the through hole 33ch as shown in FIG. When the lever 33d is rotated in the second direction B from the above state, the centrifugal portion 33de comes into contact with the end of the through-hole 33ch on the first side, as shown in Fig. 10. That is, inside the fixed portion 33a, the shaft end 33ce moves toward the first side by the cam shaft 33dc.

[0036] As a result, support portion 33b fixed to shaft portion 33c moves toward the first side in conjunction with the movement of shaft end portion 33ce. At this time, fixed portion 33a remains in contact with second saddle flange 17, so support portion 33b approaches fixed portion 33a. In other words, a portion of shaft portion 33c is housed within fixed portion 33a, shortening the apparent length of shaft portion 33c. As support portion 33b moves toward the first side, the other end of fastening member 32 supported by support portion 33b moves toward the first side. As a result, fastening member 32 fastens main pipe 10.

[0037] At this time, tension is applied to the shaft portion 33c and the shaft end portion 33ce by the fastening member 32. When the centrifugal portion 33de and the first end portion of the through hole 33ch are in contact as shown in FIG. 10, the tension of the fastening member 32 may act to return the lever 33d to the first direction A. Therefore, to ensure that the fastening member 32 secures the lever 33d, the lever 33d is further rotated in the second direction B from the state shown in FIG. 10 to the state shown in FIG. 11. Then, the force that rotates the lever 33d due to the tension of the fastening member 32 acts to rotate the lever 33d in the direction B. This ensures that the fastening member 32 is secured in place.

[0038] Next, the fixing of the saddle joint 1 and the main pipe 10 using the clamp 3 having the above-mentioned configuration will be explained using Figures 15 and 16. In Figures 15 and 16, the clamp 3 is used with a roller chain as the fastening member 32, but the fixing process is similar when using a clamp 3 in which the fastening member 32 is a flexible member.

[0039] First, as shown in Figure 15, the position of the clamp 3 is adjusted relative to the saddle joint 1 attached to the main pipe 10. At this time, the lever 33d of the fixing mechanism 33 is rotated in the first direction A. Specifically, the hook member 31 is attached to the first saddle flange 16, and the shaft portion 33c is placed in the slit 17s of the second saddle flange 17. Next, as shown in Figure 16, support portion 33b is moved along shaft portion 33c to bring support portion 33b closer to fixed portion 33a. Support portion 33b and fixed portion 33a are brought closer together until hooking member 31 and first saddle flange 16 are in secure contact, fixed portion 33a and second saddle flange 17 are in secure contact, and main pipe 10 and fastening member 32 are in secure contact. For example, after bringing support portion 33b and fixed portion 33a closer together, it is preferable to bring them into a state where they will not slip even if clamp 3 is moved by hand. Thereafter, the lever 33d is rotated in the second direction B to bring the support portion 33b and the fixing portion 33a closer to each other, thereby clamping the main pipe 10 with the clamping member 32. This fixes the saddle fitting 1 and the main pipe 10 together. In this state, electricity is passed through the heating wire 4 of the saddle joint 1 to fuse the saddle joint 1 and the main pipe 10 together.

[0040] As described above, the clamp 3 according to this embodiment is provided with the fixing mechanism 33 that fastens and fixes the fastening member 32 to the main pipe 10. In other words, the positions of the main pipe 10 and the fastening member 32 can be easily adjusted before the fastening mechanism 33 fastens the fastening member 32 to the main pipe 10. Furthermore, the fixing mechanism 33 rotates the lever 33d to bring the support portion 33b closer to the fixing portion 33a, thereby fastening the fastening member 32. By rotating the lever 33d after adjusting the positions of the main pipe 10 and the fastening member 32, the amount of rotation of the lever 33d required to fasten the fastening member 32 can be kept to a minimum. This makes it possible to perform the fixing work easily and in a short time.

[0041] Furthermore, the support portion 33b is movable in the axial direction of the shaft portion 33c. In other words, the distance between the fixed portion 33a and the support portion 33b can be adjusted by moving the support portion 33b along the axial direction of the shaft portion 33c. This makes it possible to adjust the tightening amount of the tightening member 32 to match the sizes of the saddle fitting 1 and the main pipe 10. Therefore, saddle fittings 1 and main pipes 10 of different sizes can be held by a single type of saddle fitting 1. Furthermore, even if there is variation in the sizes of the saddle fittings 1 and the main pipes 10, an optimal tightening force can always be ensured.

[0042] Furthermore, support portion 33b moves shaft portion 33c by rotating while threadedly engaged with shaft portion 33c. This not only makes it easier to adjust the tightening amount of fastening member 32, but also makes it less likely for the positions of support portion 33b and shaft portion 33c to shift due to external forces.

[0043] Furthermore, the support portion 33b is provided with a stopper portion 33bs that can be fixed to and released from the shaft portion 33c, and when the stopper portion 33bs is released, the support portion 33b can slide on the shaft portion 33c, and when the stopper portion 33bs is fixed, the support portion 33b is fixed to the shaft portion 33c. This not only makes it easier to adjust the tightening amount of the tightening member 32, but also allows the adjustment to be done in a shorter time.

[0044] The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, when the fastening members 32 are roller chains, the fastening members 32 may be arranged in multiple rows in the axial direction. Furthermore, when the fastening members 32 are flexible members, the fastening members 32 may be provided in only one row in the axial direction. Furthermore, when the support portion 33b has the stopper portion 33bs, the other end of the fastening member may be provided directly on the support portion 33b. For example, the fastening member 32, which is a roller chain, may be attached to the support portion 33b, or the fastening member 32, which is a flexible member, may be molded integrally with the support portion 33b.

[0045] In addition, within the scope of the spirit of the present invention, the components in the above-described embodiments may be replaced with well-known components as appropriate, and the above-described modifications may be combined as appropriate. [Explanation of symbols]

[0046] 1 Saddle joint 2 saddles 3 Clamp 10 Mains 16 First saddle guard 17 Second saddle guard 31 Hooking member 32 Fastening member 33 Fixing mechanism 33a Fixed part 33b Support part 33bs stopper part 33c Shaft 33d Lever

Claims

[Claim 1] A clamp for holding a saddle joint disposed on the outer periphery of a main pipe, a hook member that hooks onto the first saddle flange of the saddle joint; a fastening member having one end provided on the hooking member and disposed in a circumferential direction of the main pipe; a fixing mechanism provided at the other end of the fastening member for fastening and fixing the fastening member to the main pipe; Equipped with The fixing mechanism includes: a fixing portion disposed on a second saddle flange of the saddle joint; a support portion that supports the other end portion of the fastening member; a lever that rotates to move the support portion closer to the fixed portion; Equipped with the fixing mechanism further includes a shaft portion on which the fixing portion and the support portion are disposed, the support portion is movable in the axial direction of the shaft portion, the support portion includes a stopper portion that can be fixed to and released from the shaft portion, With the stopper portion fixed, the support portion is fixed to the shaft portion, When the stopper portion is released, the support portion is slidable on the shaft portion. Clamp.

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