JP5722119B2 - Pipe clamp - Google Patents

Description

  The present invention relates to a pipe clamp that is effective when a panel such as a sound absorbing panel is attached to a support frame framed with pipes.

  In general, in building construction sites and road construction sites, in order to reduce noise, a support frame that is framed with pipes such as scaffolding frames is set up around the site, and a panel such as a sound absorbing panel is attached to the support frame to fence And measures to prevent noise surrounding the site with the fence.

  When a panel such as the above-described sound absorbing panel is attached to a support frame that is framed by a pipe, if it is configured to be screwed using bolts and nuts, it takes much time to install and remove the panel.

  In order to eliminate such inconvenience, in Patent Document 1, there is a pipe clamp that can be clamped by pressing the pipe and can be released by operating the release lever. It has been proposed to install and remove panels using the pipe clamp.

  Here, in the pipe clamp described in Patent Document 1, an arc-shaped recess is provided in the front side portion of a bracket attached to a support object such as a panel, and is supported by the bracket between the holding position and the release position. A swingable jaw member is provided with a concave holding surface, a first leg that closes the recess in the holding position, and a second leg that faces the tip in the recess in the release position, and biases the jaw member Selectively biased toward the holding position or the release position by means, and the jaw member is held by swinging the stopper supported by the bracket and swingable between the locked position and the unlocked position to the locked position. It locks in position.

  In the above pipe clamp, when the stopper is in the locked position and the jaw member is in the release position, when the concave portion of the bracket is fitted into the pipe and the bracket is pushed in, the jaw member swings to the holding position and The one leg closes the concave portion of the bracket, and the pipe is sandwiched between the concave portion of the bracket and the first leg, so that the pipe clamp can be easily attached to the pipe.

  When the stopper is locked, the stopper locking part held in the locked position is pushed by the pipe and swings to the unlocked position. When the pipe passes through the end of the locking part, the stopper is locked by the elasticity of the spring. Since the jaw member is rocked in the holding position, the detachment from the pipe can be surely prevented, and a safe and reliable attachment state can be obtained.

  Furthermore, after swinging the stopper to the unlocked position and pulling the pipe clamp away from the pipe, the jaw member swings to the release position, so that it can be easily removed. .

JP 2011-6937 A

  By the way, in the above-mentioned conventional pipe clamp, in the locked state where the pipe is clamped, the stopper is in a conspicuous position facing the pipe, and the operation portion of the stopper is displaced upward, and between the upper ends of the first legs. Since a relatively large gap is formed, it is impossible to determine whether the stopper is in the locked position or the unlocked position, and the spring that biases the stopper toward the locked position is Since the elastic force is small and the stopper swings to the unlocked position by the addition of a small pushing force, the stopper operating portion may be pushed by mistake after being attached to the pipe. At this time, since the stopper is displaced to the unlocked position and the jaw member is unlocked, there are still points to be improved in improving safety.

  In addition, since the jaw member can swing between the holding position and the release position, only one type of pipe can be attached to the pipe clamp. If the pipe size is different, it cannot be attached. There are still some points to be improved.

  The subject of this invention is improving the safety | security of the pipe clamp which can be attached by one-touch operation, and enabling it to attach with respect to several types of pipes from which size differs.

  In order to solve the above-mentioned problems, in the present invention, a bracket having an arcuate pipe fitting recess at a front side portion that is fixed to a support object and that can receive an installation pipe for support of the support object, and a bifurcated shape A pair of front and rear arm portions and an arc-shaped pipe receiving recess capable of receiving a construction pipe between the pair of arm portions, and a rear lower portion of the pipe receiving recess is rotatably connected to the bracket. A release position in which the front arm portion falls to the front side of the bracket and the front end portion of the rear arm portion faces the pipe fitting recess, and the front arm portion closes the front opening of the pipe fitting recess and the erected pipe A clamp member that can swing between a clamping position that clamps the pipe fitting recess with the inner periphery of the pipe fitting recess, and a dead point that causes switching of the biasing direction during the swinging of the clamp member. The clamp member is selectively switched toward the release position or the clamping position and biased to prevent the clamp member from swinging toward the release position at the clamping position of the clamp member. The urging means with the locking function and the urging means with the locking function can be oscillated around the oscillating axis of the clamp member or the vicinity thereof, and the urging means with the locking function is locked when the oscillating end portion is depressed. In this case, a configuration is adopted that includes an operation lever that releases the clamp and swings the clamp member to the release position against the elasticity of the biasing means.

  In the pipe clamp having the above-described configuration, the clamp member is set to the release position, the bracket is fitted to the outer periphery of the installation pipe so that the installation pipe is fitted in the pipe fitting recess of the bracket, and the rear arm portion of the clamp member is fitted. When the bracket is pushed toward the installation pipe from the state where the tip is in contact with the outer periphery of the installation pipe, the tip of the rear arm of the clamp member is pressed by the installation pipe, and the clamp member swings toward the clamping position. Thus, the front arm sandwiches the erected pipe with the inner periphery of the pipe fitting recess of the bracket, and the pipe clamp is in an attached state.

  When the pipe clamp as described above is attached, the urging means with the lock function urges the clamp member toward the clamping position beyond the dead point, the lock function is activated at the clamping position, and the clamp member is moved to the release position. Prevents swinging towards you.

  Thus, the pipe clamp can be brought into the attached state by a simple operation of pushing the bracket toward the installation pipe from the state in which the installation pipe is fitted in the pipe fitting recess of the bracket. Since the urging member with the lock function automatically locks the clamp member and prevents the urging member with the lock function from swinging toward the release position in the attached state, an extremely safe attached state can be obtained.

  With the pipe clamp attached as described above, if the end of the swinging side of the operating lever is pushed down, the urging means with the lock function is unlocked, and the clamp member moves to the release position against the elasticity of the urging means. Swinging to release the construction pipe. Since the tip of the rear arm presses the erected pipe in the middle of the release, the pipe clamp can be easily removed from the erected pipe.

  When the bracket is attached to the installation pipe, the operation lever is located below the installation pipe. When the operation lever swings the clamp member to the release position, the pipe clamp is removed. Thus, it can be determined whether the clamp member is in the clamping position or the release position, and the release lever is not accidentally released.

  Here, as a biasing means with a lock function, a guide hole formed in the bracket, a linear long hole formed in the clamp member and extending long toward the swinging central axis of the clamp member, and the linear length A guide pin that is inserted into a communicating portion between the hole and the guide hole and is pushed down by swinging the operation lever downward, and a notch that engages with the guide pin is provided at the front end portion, and a lower portion of the bracket is provided at the rear end portion. And a resilient member that urges the pressing member toward the guide pin. The guide hole is a central axis of oscillation of the clamp member. It is possible to employ a configuration in which a notch portion into which a guide pin can be fitted is provided at one end portion of the upper side of the arc-shaped elongated hole centering on the center.

  In the biasing means with a lock function having the above-described configuration, when the notch is formed in an arc shape extending along the upper side of the arc-shaped elongated hole and the length between both ends is equal to or larger than the outer diameter of the guide pin, Since the biased clamp member can be swung within the range where the guide pin contacts both ends of the arcuate notch, the pipe clamp can be attached to several types of pipes having different outer diameters. Can do.

  In the pipe clamp according to the present invention, when a safety lock mechanism for locking the clamp member is provided in a state in which the installation pipe is clamped at the inner periphery of the pipe fitting recess in the bracket, the safety lock mechanism and the biasing means are provided. Since the clamp member can be locked and held by each of the lock mechanisms provided in the, the safety can be further improved.

  As the safety lock mechanism, a hook piece provided at the front upper portion of the bracket, a lock lever whose one end is swingably supported on the front upper portion of the front arm portion of the clamp member, and a rocking center of the lock lever An engagement frame having one end rotatably connected to a position offset toward the other end and capable of engaging the other end with the hook piece by swinging in a direction in which the lock lever rises. Can be used.

  In this case, one end portion of the engagement plate is connected to the other end portion of the engagement frame, and an engagement hole that can be engaged with the hook piece is formed in the other end portion of the engagement plate so that the outer diameters are different. It can correspond to a construction pipe.

  The safety lock mechanism is not limited to the above. For example, a bracket is provided with a lock hole, and the clamp member is provided with a pin hole that communicates with the lock hole in a state in which the clamp member is sandwiched between the pipe fitting recess and the communication between the pin hole and the lock hole. The operation pin for locking may be freely inserted and removed from the part.

  The above two types of safety lock mechanisms may be employed alone or in combination.

  In the pipe clamp according to the present invention, as described above, the pipe clamp is attached by a simple operation of pushing the bracket toward the installation pipe from the state in which the installation pipe is fitted in the pipe fitting recess of the bracket. Since it can be removed from the installation pipe by pushing down the rocking side end of the operating lever from its attached state, it can be easily attached and detached.

  Also, by attaching a pipe clamp to the installation pipe, the urging member with a lock function automatically locks the clamp member and prevents it from swinging toward the release position, so that an extremely safe installation state can be obtained. Can do.

  In addition, when the bracket is attached to the installation pipe, the operation lever is arranged below the installation pipe, and when the operation lever swings the clamp member to the release position, the pipe clamp is removed. It is possible to determine whether the clamp member is in the clamping position or the release position according to the position, and the release lever is not accidentally released, and a pipe clamp with excellent safety can be provided. it can.

The front view which shows the use condition of the pipe clamp which concerns on this invention Sectional view along the line II-II in FIG. The longitudinal cross-sectional view which expands and shows the pipe clamp part shown by FIG. Right side view of FIG. Sectional view along line V-V in FIG. Partially cutaway front view showing a released state of a clamp member of a pipe clamp according to the present invention (A) is sectional drawing which shows the 1st locking state of a safety locking mechanism, (b) is sectional drawing which shows the 2nd locking state of a safety locking mechanism The exploded perspective view of the pipe clamp concerning this invention

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a state in which a sound absorbing fence A is formed using a sound absorbing panel 1 as a support object. As shown in FIGS. 1 and 5, the sound absorbing panel 1 has vertical frames 2 on both sides, and a joint member 3 is screwed to the side of one vertical frame 2, and the side of the joint member 3 is A seal member 4 is attached which elastically contacts the joint member 3 of the adjacent sound absorbing panel 1 and maintains airtightness.

  On the surface of the vertical frame 2, guide protrusions 5 that extend in the vertical direction are integrally provided, and a pair of guide grooves 6 that are open on both sides are formed in the guide protrusions 5.

  The sound absorbing panel 1 is detachably attached to an erected pipe P laid horizontally via a panel fixture 10.

  As shown in FIGS. 3 to 5, the panel fixture 10 includes a base member 11 attached to the sound absorbing panel 1 and a pipe clamp 21 connected to the base member 11.

  The base member 11 is provided with a pair of opposed side plates 13 on both sides of a rectangular base plate 12, and a pair of opposed guide projections 14 facing inward are formed on the respective edges of the pair of side plates 13 with a vertical spacing therebetween. A nut 15 is fixed to the upper and lower portions of the base plate 12 by welding, and a lock bolt 16 is screwed to each nut 15.

  The base member 11 is slidably fitted into a guide groove 6 formed in the guide protrusion 5 of the vertical frame 2 with a pair of opposed guide protrusions 14 so that the position of the base member 11 can be adjusted in the height direction with respect to the vertical frame 2. As a result, the lock bolt 16 is tightened and fixed at the adjustment position.

  As shown in FIG. 3, the pipe clamp 21 includes a bracket 22 connected to the base member 11, a swingable clamp member 23 connected to the bracket 22 and sandwiching the installation pipe P with the bracket 22, A biasing means 24 with a locking function for selectively switching and biasing the clamp member 23 toward the release position or the clamping position, and locking the clamp member 23 in a biased state toward the clamping position, and its locking function It comprises an operation lever 25 that releases the lock 24 of the biasing means and swings the clamp member 23 from the clamping position to the release position.

  As shown in FIG. 3 and FIG. 8, the bracket 22 is provided with a pair of opposed side plates 27 on both sides of a rectangular mounting substrate 26 attached to the base member 11, and an inwardly bent piece 28 on the upper side of the side plate 27. The mounting board 26 is superimposed on the base plate 12 of the base member 11, and is connected to the ba member 11 by connecting pins 29 that penetrate both the mounting board 26 and the base plate 12. It can be swung freely around the center.

  An arcuate pipe fitting recess 30 sized to receive the erected pipe P is formed at the front edge of the pair of opposed side plates 27, and is located above the pipe fitting recess 30 and projects forward. The side wall 31 has a length substantially equal to the outer diameter of the installation pipe P.

  Further, a fulcrum pin 32 is passed between the lower rear side of the pipe fitting recess 30 between the pair of opposed side plates 27, and the clamp member 23 is supported so as to be swingable around the fulcrum pin 32.

  The clamp member 23 has a configuration in which a pair of opposed side plates 34 are provided on both sides of the front plate 33 and an inwardly bent piece 35 is provided on the rear side of the side plate 34, and the pair of opposed side plates 34 are bifurcated. A pair of arm portions 36 and 37 are formed on the front and rear sides, and a semicircular arc pipe receiving recess 38 is formed between the front arm portion 36 and the rear arm portion 37.

  The clamp member 23 is accommodated between a pair of opposing side plates 27 of the bracket 22 and the rear side portion of the pipe receiving recess 38 is rotatably supported by the fulcrum pin 32. As shown in FIG. The front arm portion 36 closes the front opening of the mating recess 30 and clamps the installation pipe P with the inner periphery of the pipe fitting recess 30. As shown in FIG. The front end of the rear arm 36 is tilted forward and is swingable between a release position facing the pipe fitting recess 30.

  As shown in FIGS. 7 and 8, the biasing means 24 with the lock function includes a guide hole 40 formed in the pair of side plates 27 of the bracket 22 and a long hole 41 formed in the pair of side plates 34 of the clamp member 23. And a guide pin 42 inserted through the communicating portion of the long hole 41 and the guide hole 40, and a notch 44 that engages with the guide pin 42 is formed at the front end portion, and a pair of side plates of the bracket 22 at the rear end portion. 27 as a plate-like pressing element 43 provided with a long hole 46 guided by a fixing pin 45 passed between the lower end portions of 27, and an elastic member for urging the pressing element 43 toward the guide pin 42. It consists of a compression coil spring 47.

  Here, the guide hole 40 is configured such that an arc-shaped notch 40b extending along the upper side is provided at one end of the upper side of the arc-shaped long hole 40a with the fulcrum pin 32 as the center. The length between both ends of the guide pin 42 is larger than the outer diameter of the guide pin 42. On the other hand, the long hole 41 formed in the side plate 34 of the clamp member 23 is elongated toward the fulcrum pin 32.

  In the biasing means 24 with the lock function configured as described above, a straight line connecting the centers of the fulcrum pin 32 and the fixed pin 45 is a dead point, and the clamp member 23 is released when the guide pin 42 passes the dead point. The guide pin 42 is fitted to the notch 40b in the biased state toward the clamping position, and selectively switched toward the position or the clamping position. The clamp member 23 can swing in a range where it abuts on both ends, and the clamp member 23 is prevented from swinging toward the release position by the abutment of the guide pin 42 on one end.

  As described above, the clamp member 23 is swingable within a range where it contacts both ends of the notch 40b. Therefore, as shown in FIGS. 7A and 7B, two types of outer diameters are different. The erected pipe P can be held between the pipe fitting recess 30 of the bracket 22. 7A shows a large-diameter construction pipe P, and FIG. 7B shows a small-diameter construction pipe P.

  The notch 40b is not limited to an arc shape, and may be a semicircular shape along the outer periphery of the guide pin 42.

  As shown in FIG. 3, the operation lever 25 described above is incorporated between a pair of opposed side plates 34 of the clamp member 23. The operation lever 25 has a pair of opposing pressure pieces 48 at the tip, and the tips of the pair of pressure pieces 48 are supported by the fulcrum pin 32.

  The operation lever 25 swings downward about the fulcrum pin 32 by pushing down the end of the swing side. At this time, when the guide pin 42 is fitted into the notch 40b of the guide hole 40 and the clamp member 23 is locked in the clamping position, the inclined cam surface 49 formed on the lower edges of the pair of pressure pieces 48 is provided. Pushes down the guide pin 42 to release the engagement with the notch 40b.

As shown in FIGS. 6 to 8, between the bracket 22 and the clamp member 23,
A safety lock mechanism 50 is provided that can lock the clamp member 23 in a state where the installation pipe P is clamped by the pipe fitting recess 30 of the bracket 22.

  The safety lock mechanism 50 is connected to a support pin 51 provided on the front upper portion of the front arm portion 36 of the clamp member 23 so that the one end portion of the lock lever 52 can swing, and the support serving as the swing center of the lock lever 52 is supported. One side of the square engagement frame 53 is connected to an eccentric position slightly offset from the pin 51 toward the swing end, and one end of the engagement plate 54 is rotatably connected to the other side of the engagement frame 53. An engagement hole 55 is provided in the other end portion of the engagement plate 54 and swings in the direction in which the lock lever 52 is raised, so that the other end portion of the engagement frame 53 or the engagement hole 55 of the engagement plate 54 is attached to the bracket. 22 is engaged with a hook piece 56 provided on the front side of the upper side wall 31, and the lock lever 52 is swung in a downward direction to hold the engaged state, and the clamp member 23 is swung in a direction to release the clamping. I try to prevent it from moving.

  In the embodiment, the second safety lock mechanism 60 is provided in combination with the safety lock mechanism 50 as described above. As shown in FIGS. 7 and 8, in the second safety lock mechanism 60, a lock hole 61 is provided in the bracket 22, and the clamp member 23 is connected to the pipe fitting recess 30 in FIG. As shown in a), pin holes 62 and 63 communicating with the lock hole 61 in a state where the large-diameter construction pipe P is sandwiched or in a state where the small-diameter construction pipe P is sandwiched as shown in FIG. 7B. The locking operation pin 64 can be inserted and removed freely in the communicating portion between the pin holes 62 and 63 and the lock hole 61.

  The sound-absorbing fence A shown in the embodiment has the above-described structure. When the sound-absorbing fence A is formed, a plurality of sound-absorbing panels 1 are sequentially attached in the length direction of the horizontally installed pipe P, and the joint member 3 The seal member 4 is elastically brought into contact with the side portion of the joint member 3 of the sound absorbing panel 1 attached in advance.

  When attaching the sound absorbing panel 1 to the erected pipe P, as shown in FIG. 6, the clamp member 23 is placed in a release position where the front arm portion 36 falls to the front side of the bracket 22, and is installed in the pipe fitting recess 30 of the bracket 22. From the state where the bracket 22 is fitted to the outer periphery of the erected pipe P so that the pipe P is fitted, and the front end portion of the rear arm portion 37 of the clamp member 23 is in contact with the outer periphery of the erected pipe P, the bracket connecting portion of the sound absorbing panel 1 Is pushed toward the erected pipe P.

  When the sound absorbing panel 1 is pushed in, the distal end portion of the rear arm portion 37 of the clamp member 23 is pushed by the erected pipe P, and the clamp member 23 swings around the fulcrum pin 32 toward the clamping position. As shown in FIG. 6, the front arm portion 36 sandwiches the erected pipe P with the inner periphery of the pipe fitting recess 30 of the bracket 22.

  When the clamp member 23 swings toward the clamping position, the guide pin 42 is pushed by the side edge of the long hole 41 formed in the clamp member 23 and moves along the arc-shaped long hole 40 a of the guide hole 40. When the guide pin 42 moves to a position facing the arcuate notch 40b, the guide pin 42 is fitted into the arcuate notch 40b by pressing the compression coil spring 47 as shown in FIG. Both ends of the portion 40b face each other in the swinging direction of the clamp member 23, and the clamp member 23 is held in the clamping position by the contact of the guide pin 42 with one end portion of the notch 40b, and swings toward the release position. The sound absorbing panel 1 is held in the attached state.

  As described above, the clamp member 23 of the pipe clamp 21 is moved by the simple operation of pushing the sound absorbing panel 1 toward the installation pipe P from the state in which the installation pipe P is fitted in the pipe fitting recess 30 of the bracket 22. Is automatically clamped, so that the sound absorbing panel 1 can be easily attached.

  Further, since the guide pin 42 is fitted into the notch 40b of the guide hole 40 in the mounted state of the sound absorbing panel 1, the clamping member 23 at the clamping position is prevented from swinging toward the release position, which is extremely safe. Can be obtained.

  When the sound absorbing panel 1 is attached, the engagement hole 55 of the engagement plate 54 is engaged with the hook piece 56 of the safety lock mechanism 50 as shown in FIG. 7A, or as shown in FIG. In addition, when the engagement frame 53 is engaged with the hook piece 56, the clamp member 23 can be held in the clamping position, so that safety can be further improved.

  When the sound absorbing panel 1 in which the engagement frame 53 or the engagement plate 54 of the safety lock mechanism 50 is disengaged from the hook piece 56 is attached, when the swing side end portion of the operation lever 25 is pushed down, it is fitted into the notch portion 40b. The mating guide pin 42 is pushed down by the inclined cam surface 49 formed on the pressure piece 48 of the operating lever 25 and faces the end of the arc-shaped elongated hole 40a, and the engagement with the notch 40b is released.

  When the operation lever 25 is further pushed down from the disengaged state, the clamp member 23 swings toward the clamping release position, and the guide pin 42 moves along the arc-shaped elongated hole 40a. When the guide pin 42 moves to a position exceeding the dead point, the clamp member 23 swings to the release position by the elastic force of the compression coil spring 47 and the operation force for operating the operation lever 25, and the installation pipe P is clamped. To release. In the middle of the release, the tip of the rear arm portion 37 presses the erected pipe P. For this reason, the sound absorption panel 1 can be easily removed from the construction pipe P.

  Here, as shown in FIG. 7, with the sound absorbing panel 1 attached to the installation pipe P, the operation lever 25 is disposed below the installation pipe P, and the operation lever 25 swings the clamp member 23 to the release position. Since the pipe clamp 21 is removed together with the sound absorbing panel 1, it can be determined whether the clamp member 23 is in the clamping position or the release position based on the position of the operation lever 25. For this reason, the operation lever 25 is not accidentally released.

  In the embodiment, the sound absorbing panel 1 is shown as a supporting object attached to the construction pipe P, but the supporting object is not limited to the sound absorbing panel.

1 Sound absorbing panel (supported object)
22 Bracket 23 Clamp member 24 Energizing means 25 with lock function Operation lever 30 Pipe fitting recess 36 Front arm portion 37 Rear arm portion 38 Pipe receiving recess 40 Guide hole 40a Arc-shaped long hole 40b Arc-shaped notch 41 Long hole 42 Guide pin 43 Presser 44 Notch 45 Fixed pin 46 Long hole 47 Compression coil spring (elastic member)
50 Safety lock mechanism 52 Lock lever 53 Engagement frame 54 Engagement plate 55 Engagement hole 56 Hook piece 61 Lock hole 62 Pin hole 63 Pin hole 64 Locking operation pin

Claims (4)

A bracket having an arcuate pipe fitting recess on the front side, which is fixed to the support object and can receive the support pipe for the support object;
It has a bifurcated shape and has a pair of front and rear arm portions and an arc-shaped pipe receiving recess that can receive an installed pipe between the pair of arm portions, and the rear lower portion of the pipe receiving recess is rotatable to the bracket. Connected, a release position where the front arm part falls to the front side of the bracket and the tip of the rear arm part faces the pipe fitting recess, and the front arm part closes the front opening of the pipe fitting recess. A clamp member capable of swinging between a holding position for holding the installation pipe with the inner periphery of the pipe fitting recess,
A dead point where the biasing direction is changed during the swinging of the clamp member is provided, and the clamp member is selectively switched toward the release position or the clamping position to bias the clamp member. An urging means with a lock function having a lock function for preventing the clamp member from swinging toward the release position;
The clamp member is pivotable about or near the pivot axis of the clamp member, and when the pivot end of the clamp member is pivoted, the lock of the biasing means with the lock function is released to attach the clamp member. An operation lever that swings to the release position against the elasticity of the biasing means;
Tona is,
The clamp member is provided with a safety lock mechanism that locks the clamp member in a state in which the installation pipe is clamped with the pipe fitting recess of the bracket, and the safety lock mechanism is provided on the front upper portion of the bracket. A piece, a lock lever whose one end is swingably supported at the front upper portion of the front arm portion of the clamp member, and one end pivots to a position offset from the swing center of the lock lever toward the other end The engaging frame is freely connected and can engage the other end with the hook piece by swinging the lock lever in the standing direction. A pipe clamp in which one end is connected and an engagement hole that can be engaged with the hook piece is formed in the other end of the engagement plate .   The biasing means with a lock function includes a guide hole formed in a bracket, a linear long hole formed in the clamp member and extending long toward the swinging central axis of the clamp member, and the linear long hole And a guide pin inserted into the communicating portion of the guide hole and pushed down by swinging the operating lever downward, and a notch that engages with the guide pin at the front end portion, and a rear end portion of the bracket. A pressing element formed with a long hole guided by a fixing pin provided at a lower part and an elastic member that urges the pressing element toward the guide pin, and the guide hole is an oscillation center of the clamp member. The pipe clamp according to claim 1, wherein a notch portion into which the guide pin can be fitted is provided at one end portion of the upper side of the arc-shaped long hole centering on the shaft.   The pipe clamp according to claim 2, wherein the notch has an arc shape extending along the upper side of the arc-shaped elongated hole, and a length between both ends is equal to or greater than an outer diameter of the guide pin. The bracket is provided with a lock hole, and the clamp member is provided with a pin hole that communicates with the lock hole in a state in which the clamp member sandwiches the installation pipe with the pipe fitting recess, and the pin hole communicates with the lock hole. The pipe clamp according to any one of claims 1 to 3 , further comprising a locking operation pin that can be inserted into and removed from the portion.

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