JP2007024312A - Clamp - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a clamp capable of keeping a safety or the like of an operator working in working field when a tip of bolt projects from a nut in such a way that a nut from which a tip of bolt projects can be used, and that a special nut such as extended shaft-like cap nut or the like is not necessary to use. <P>SOLUTION: In the clamp, in which both one side ends of first insertion member 41 and second insertion member 42 are connected freely in rotation with a coupling member, and the first insertion member 41 and second insertion member 42 support an inserted member 3 in insertion by tightening a bolt 45 arranged freely in rotation at the other side end of the first insertion member 41 in such a way that it is screwed into a nut 52 fixed at the other side end of the second insertion member 42, a pair of covering sections 55 is arranged in the second insertion member 42, and a small diameter portion 45E of bolt 45 tip is projected from the nut 52 between these covering sections 55. By this, the nut from which the tip of bolt projects can be used, and the special nut such as the extended shaft-like cap nut is not necessary to use; furthermore, when the tip of bolt projects from the nut, the safety or the like of the operator working in the working field can be kept. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a clamp for clamping a member used in various work sites including a construction site, a demolition site, and a civil engineering site.

  Patent Document 1 below shows a clamp that is used for clamping a member to be clamped such as a pipe material in various construction sites including a construction site, a demolition site, and a civil engineering site. The clamp includes first and second clamping members, a connecting member that pivotally connects one end of each of the first clamping member and the second clamping member, and a first clamping member A bolt that is rotatably arranged at the other end, and a nut that is fixed to the other end of the second clamping member, and the first clamping member by screwing and tightening the bolt into the nut. A to-be-clamped member is clamped with the 2nd clamping member.

And, when the bolt is screwed into the nut and tightened, if the tip of the bolt protrudes from the nut, there is a possibility that the safety of the worker working at the work site cannot be secured. In the clamp, the nut is a long-axis cap nut having an increased length in the axial direction so that the tip of the bolt does not protrude from the nut.
Japanese Patent Laid-Open No. 10-238106 (paragraph numbers 0011 and 0012, FIG. 1)

  However, according to this prior art, a long-spinned cap nut must be used as a nut for screwing in and tightening a bolt. Since such a nut is a special nut, the cost of the entire clamp is reduced. The problem of becoming high arises.

  The object of the present invention is to use a nut from which the tip of the bolt protrudes, and it becomes unnecessary to use a special nut such as a long shaft cap nut, and the tip of the bolt protrudes from the nut. However, the present invention is to provide a clamp that can ensure the safety and the like of the worker working at the work site.

  The clamp according to the present invention includes two first and second clamping members, a connecting member that rotatably connects one end of each of the first clamping member and the second clamping member, A bolt that is rotatably disposed at the other end of the first clamping member, and a nut that is fixed to the other end of the second clamping member, and screwing the bolt into the nut In the clamp in which the first sandwiching member and the second sandwiching member sandwich the sandwiched member by tightening, the second sandwiching member is provided with a pair of cover portions, and between the cover portions, the bolt The tip portion protrudes from the nut.

  The nut used in this clamp is a nut from which the tip of the bolt protrudes when the bolt is screwed in and tightened, so there is no need to use this nut as a special nut such as a long shaft cap nut. Therefore, the cost of the entire clamp does not increase. In addition, the second clamping member is provided with a pair of cover portions, and the front end portion of the bolt projects from the nut between the cover portions. It will be in the covered state, and it will be possible to ensure the safety of workers working at the work site.

  In this clamp, the pair of cover portions provided on the second clamping member may be formed by a member coupled to the second clamping member by welding or the like, and the second clamping member is formed by sheet metal pressing. Alternatively, it may be integrally formed as a part of the second holding member by this press working.

  According to the latter, since the pair of cover portions can be provided on the second holding member at the same time when the second holding member is manufactured by pressing the sheet metal, the pair of cover portions can be provided on the second holding member. The cost of the entire clamp will not increase.

  In the above, the front end portion of the bolt may be left as the screw portion of the bolt, or may be formed with a smaller diameter than the screw portion. According to the latter, when inserting the front-end | tip part of a bolt in a nut in order to screw a bolt in a nut and to tighten, this insertion can be performed easily.

  Moreover, you may form the front-end | tip part of a volt | bolt in the taper shape tapering off from the thread part of this volt | bolt. According to this, when inserting the front end of the bolt into the nut, this insertion can be easily performed, and unlike the case where the front end of the bolt has a smaller diameter than the threaded portion of the bolt, the front end and the screw Therefore, it is possible to eliminate the step between them or to reduce the step, so that the screw portion of the bolt can be easily inserted into the nut.

  Further, the means for fixing the nut to the second clamping member may be welding, may be one using a coupling tool such as a screw, and further, pressure deformation processing of a part of each of the covering portions toward the nut side The nut may be fixed to the second clamping member by the pressure deformation portion formed as described above.

  If the nut is fixed to the second clamping member by the pressure deforming portion, the nut can be fixed to the second clamping member by an easy processing method such as caulking or pressing, which simplifies the fixing operation. Can be achieved.

  In addition, fixing the nut to the second clamping member by the pressure deforming portion formed by pressurizing and deforming a part of each cover portion to the nut side in this way is as short as a normal nut. This can be performed when it is a cylindrical member of a size, and the nut has a cylindrical main body part and a flange part formed at one end of the main body part with a larger diameter than the main body part In this case, the second holding member is formed with a hole into which the main body portion is inserted with the main body portion facing the first holding member side, and on the opposite side of the first holding member side from the hole. This can also be achieved by fixing the arranged flange portion to the second clamping member by the pressure deformation portion.

  Further, the bolt has a head and a shaft extending from the head, and the shaft is inserted into a hole formed in the first holding member toward the second holding member, The bolt can be rotatably disposed on the first clamping member.

  And the said hole which inserts the said axial part may be a normal round hole, and may be a long hole long in the direction orthogonal to the axial direction of the said connection member.

  When the hole into which the shaft portion is inserted is this long hole, the first clamping member in which the bolt is rotatably arranged with respect to the second clamping member to which the nut is fixed is rotated around the coupling member. When the screw part of the bolt is screwed into the nut while the bolt is being screwed, it is easy for the bolt to swing, etc. in a direction perpendicular to the axial direction of the connecting member. It becomes easy to suppress the occurrence.

  Moreover, it is preferable to arrange a slip-out preventing member for preventing the shaft portion from slipping out of the hole in which the shaft portion is inserted in the shaft portion of the bolt. According to this, the shaft portion is prevented from coming out of the hole by the slip-out preventing member, so that it is possible to prevent the bolt from dropping from the first clamping member when the clamp is transported or handled.

  The shape, structure, etc. of this slip-out prevention member is arbitrary, and one example thereof is that the slip-out prevention member is a ring-shaped member such as a snap ring fitted to the outer periphery of the shaft portion, and another example is The slip-off prevention member is a pin that is fixedly penetrated to the shaft portion. Still another example is a protrusion member attached to the shaft portion or a protrusion integrally formed on the shaft portion. That is.

  Further, when the pull-out prevention member is a ring-shaped member fitted to the outer periphery of the shaft portion, the shaft-shaped portion is locked by engaging the ring-shaped member with a screw portion formed on the shaft portion. You may arrange in. According to this, the ring-shaped member can be fixedly arranged at a predetermined position of the bolt using the screw portion.

  Further, the ring-shaped member may be formed of an elastic material such as elastic rubber, synthetic resin, or a coil spring. According to this, by elastically extending the ring-shaped member, it is possible to easily dispose the ring-shaped member at a predetermined position of the shaft portion beyond the uneven threaded portion, and at the predetermined position. After the arrangement, the ring-shaped member can be stopped at the predetermined position by the elastic contraction action of the ring-shaped member.

  The present invention provides a clamp in which the number of first clamping members and the number of second clamping members is one, that is, the number of clamping parts for clamping the clamped member by the first clamping member and the second clamping member. The present invention can be applied to a single clamp, and the clamps in which the number of the first clamping member and the second clamping member is two, that is, the first clamping member and the second clamping member are used for the above-mentioned covering. The present invention can also be applied to an orthogonal clamp or a universal clamp in which the number of clamping parts for clamping the clamping member is two.

  When the present invention is applied to an orthogonal clamp or a universal clamp, in other words, the bolt is rotatably connected to the first clamping member, the first clamping member is connected to the coupling member, and the nut is fixed. When the second holding member is applied to a clamp having two each, the two second holding members are connected with the surface opposite to the first holding member facing each other, It is preferable that the front ends of the bolts are oriented on the sides facing each other.

  According to this, even if the tip of each bolt protrudes from the nut, these tips are oriented to face each other, and the orientation of these tips is opposite to the worker working at the work site. Moreover, since the tip portions of these bolts protrude from the nut between the pair of cover portions provided on the respective second clamping members, even in the case of an orthogonal clamp or a universal clamp, it works at the work site. It will be possible to ensure the safety of workers

  According to the present invention, it is possible to use a nut from which the tip end of the bolt protrudes, and it becomes unnecessary to use a special nut such as a long shaft cap nut, and even if the tip end of the bolt protrudes from the nut. It becomes possible to ensure the safety of workers working at the work site.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated based on drawing. FIG. 1 shows, for example, a barricade 1 used in a construction work site. This barricade 1 is used for connecting two end members 2 at both ends and these end members 2 having an A shape. The upper and lower two pipe-made connecting members 3 are configured, and the upper and lower two single clamps 10 are coupled to the respective end members 2 by welding, bolts, or nuts. The two end members 2 are connected via the connecting member 3 by sandwiching the end portions of the three.

  FIG. 2 shows a side view of the single clamp 10, and FIG. 3 shows a front view of the single clamp 10. FIG. 4 shows a perspective view of the single clamp 10 before the connecting member 3 is sandwiched. As shown in FIG. 4, the single clamp 10 includes a first clamping member 41 and a second clamping member 42 as main members, and these clamping members 41 and 42 are made of sheet metal press. It is formed by processing. Further, one end 41A, 42A of the first clamping member 41 and the second clamping member 42 facing each other is parallel to the longitudinal direction of the connecting member 3 that is a clamped member that is clamped by the single clamp 10. It is connected by a connecting pin 43 whose direction is the axial direction, whereby the first pin is centered on this connecting pin 43 which is a connecting member for connecting the first and second clamping members 41, 42. The clamping member 41 and the second clamping member 42 are rotatable with respect to each other, in other words, can be opened and closed. The single clamp 10 shown in FIG. 1 has a surface opposite to the first clamping member 41 of the second clamping member 42 and is joined to the end member 2 by welding or bolts and nuts. It is fixed.

  As shown in FIG. 4, the first clamping member 41 includes a main portion 41B that has a curved shape so as to clamp the connecting member 3, and the one end portion 41A with respect to the main portion 41B. And an auxiliary portion 41D formed at the other end 41C on the opposite side, and a bolt 45 is inserted into a long hole 44 formed in the auxiliary portion 41D. The bolt 45 has a head portion 45A and a shaft portion 45B extending from the head portion 45A, and the shaft portion 45B is inserted into the elongated hole 44 toward the second clamping member 42, The bolt 45 is rotatably disposed at the other end 41 </ b> C of the first clamping member 41.

  The long hole 44 is elongated in a direction orthogonal to the axial direction of the connecting pin 43. Further, the auxiliary portion 41D is formed with a pair of wall portions 46 arranged in parallel to the axial direction of the connecting pin 43, and in the axial direction of the axial portion 45B of the bolt 45 inserted into the long hole 44. A shaft portion 45B is disposed between the wall portions 46 having the height of. Since the strength of the auxiliary portion 41D is reinforced by the two wall portions 46, the strength of the other end portion 41C required when the bolt 45 is screwed into a nut described later and tightened is secured. .

  The shaft portion 45B of the bolt 45 has a screw portion 45C in which a screw thread is formed and a smooth portion 45D in which no screw thread is formed, and a portion close to the head 45A is a smooth portion 45D. A portion far from the portion 45A is a screw portion 45C. The tip of the bolt 45, in other words, the end of the screw 45C opposite to the smooth portion 45D is a small-diameter portion 45E having a diameter smaller than that of the screw 45C. Further, on the outer periphery of the shaft portion 45B, more specifically, on the outer periphery of the smooth portion 45D, a ring-shaped member 47 serving as a slip-out preventing member for preventing the shaft portion 45B from slipping out of the long hole 44. And the ring-shaped member 47 according to this embodiment is a snap ring. As shown in FIG. 5, the ring-shaped member 47 is fixedly attached to the shaft portion 45B by being engaged with a groove 48 formed in the smooth portion 45D.

  As shown in FIG. 4, the second sandwiching member 42 having a substantially L-shaped side surface includes a main portion 42B and the other end opposite to the one end portion 42A with respect to the main portion 42B. The main portion 42B is provided with a pair of flange portions 50 arranged side by side in a direction parallel to the axial direction of the connecting pin 43, and the second clamping member 42 has an auxiliary portion 42D formed at the end portion 42C. These flange portions 50 reaching the one end portion 42A are formed with curved portions 51 for sandwiching the connecting member 3.

  The auxiliary portion 42D is provided with a base portion 54 in which a hole 53 for inserting the nut 52 is formed, and a cover portion 55 bent from the base portion 54 to the side opposite to the first clamping member 41. The two cover portions 55 are arranged in parallel in a direction parallel to the axial direction of the connecting pin 43.

  As shown in FIG. 5, the nut 52 has a cylindrical main body 52A and a flange 52B formed at one end of the main body 52A with a diameter larger than that of the main body 52A. The main body 52A is inserted into the hole 53 with the main body 52A facing the first clamping member 41, and after this insertion, the main body 52A and / or the flange 52B is joined to the auxiliary portion 42D by welding. As a result, the nut 52 is fixed to the other end portion 42 </ b> C of the second clamping member 42. Thus, when the nut 52 is coupled to the other end portion 42 </ b> C, the flange portion 52 </ b> B is disposed between the pair of cover portions 55.

  As shown in FIG. 4, the first clamping member 41 that is open with respect to the second clamping member 42 is closed as shown in FIG. 2, whereby the first and second clamping members 41, 42 connect the connecting member 3. When carrying out the work of holding the pin, after placing the connecting member 3 on the curved portion 51 of the second holding member 42, the first holding member 41 is rotated downward about the connecting pin 43, whereby the bolt The small diameter portion 45E at the tip of 45 is inserted into the nut 52. Next, the head portion 45A of the bolt 45 is rotated with a manual or electric tool so that the screw portion 45C of the bolt 45 is screwed into the nut 52 and the bolt 45 is tightened. Thereby, the connecting member 3 is clamped by the first clamping member 41 and the second clamping member 42.

  FIG. 5 shows a state in which the bolt 45 is screwed into the nut 52 and tightened in order to hold the connecting member 3 between the first holding member 41 and the second holding member 42 in this manner. At this time, as shown in FIG. 5, the small diameter portion 45 </ b> E serving as the tip of the bolt 45 protrudes from the nut 52.

  For this reason, the nut 52 is not a special nut such as a long shaft-like cap nut, and therefore, the cost of the single clamp 10 as a whole can be reduced.

  Further, as shown in FIG. 3, the small diameter portion 45E of the bolt 45 protrudes from the nut 52 between a pair of cover portions 55 formed on the second clamping member 42, and these cover portions 55 are , And has a length parallel to the direction in which the bolt 45 is inserted into the nut 52. For this reason, the small diameter part 45E which is the front-end | tip part of the volt | bolt 45 will be in the state covered with these cover parts 55, and, thereby, walks around the installation place of the barricade 1 where the single clamp 10 was used, and work. The worker's safety or the like is not lowered by the small diameter portion 45E of the bolt 45 protruding from the nut 52, and the worker's safety or the like can be ensured.

  Further, since the pair of cover portions 55 is also a reinforcing portion that reinforces the strength of the auxiliary portion 42D of the second clamping member 42 in which the nut 52 is disposed, the bolt 45 is fastened to the nut 52 with a large force. Can do.

  Further, since the tip of the bolt 45 is a small diameter portion 45E having a diameter smaller than that of the screw portion 45C of the bolt 45, it must be performed before the screw portion 45C of the bolt 45 is screwed into the nut 52. The operation | work which inserts the front-end | tip part of the volt | bolt 45 in the nut 52 can be performed easily.

  Further, the hole of the first clamping member 41 into which the shaft portion 45B of the bolt 45 is inserted is a long hole 44 that is elongated in a direction perpendicular to the axial direction of the connection pin 43. The screwing operation of the screw portion 45C of the bolt 45 into the nut 52 while rotating the first clamping member 41 downward in the center is performed in a direction orthogonal to the axial direction of the connecting pin 43 on the shaft portion 45B of the bolt 45. This can be carried out while performing a swinging motion and the like. As the shaft portion 45B swings in this direction, the screw portion 45C is smoothly screwed into the nut 52, so that the bolt 45 can be manually or electrically operated as described above. Thus, it is possible to easily perform the operation of rotating with the above tool while suppressing the occurrence of a large resistance or the like.

  In addition, since the ring-shaped member 47 for preventing the shaft portion 45B from coming out of the long hole 44 is attached to the shaft portion 45B of the bolt 45, when the single clamp 10 is transported or handled, Even if the first clamping member 41 is opened from the second clamping member 42 as shown in FIG. 4, it is possible to prevent the bolt 45 from dropping from the first clamping member 41.

  FIG. 6 shows another embodiment of the tip portion of the bolt 45 protruding from the nut 52. The front end portion of the bolt 45 of this embodiment is a tapered portion 45F formed in a tapered shape tapered from the thread portion 45C of the bolt 45.

  According to this, when inserting the front end portion of the bolt 45 into the nut 52, this insertion can be easily performed, and unlike the case where the front end portion of the bolt 45 is the small diameter portion 45E, the front end portion and the screw portion 45C are disposed. Therefore, the step of inserting the screw portion 45C into the nut 52 can be easily performed.

  FIG. 7 is a view showing another embodiment of the means for fixing the nut 52 to the second holding member 42, and is a view of the nut 52 as seen from the lower side of the second holding member 42. In this embodiment, a pressure deformation portion 56 protruding to the nut 52 side is formed on each of the pair of cover portions 55 described above, and these pressure deformation portions 56 are extended to the flange portion 52B of the nut 52. As a result, the nut 52 is fixed to the auxiliary portion 42D of the second clamping member 42 by the pressure deformation portion 56. That is, as described above, the main body portion 52A of the nut 52 is inserted into the hole 53 of the second clamping member 42 with the main body portion 52A facing the first clamping member 41 side. The flange portion 52B of the nut 52 disposed on the side opposite to the first clamping member 41 is fixed to the auxiliary portion 42D of the second clamping member 42 by the pressure deformation portion 56.

  According to this embodiment, the pressurizing deformation portion 56 can be formed by an easy working method such as a caulking process using a caulking tool or an upper and lower die of a press machine. As a result, the operation of fixing the nut 52 to the second clamping member 42 can be simplified.

  Further, each of the pressure deforming portions 56 is formed on a part of the pair of cover portions 55 provided on the second clamping member 42 so as to cover the front end portion of the bolt 45 protruding from the nut 52. The nut 52 can be fixed to the second clamping member 42 by effectively using the cover portion 55.

  FIG. 8 shows another embodiment of a slip-out preventing member for preventing the shaft portion 45B of the bolt 45 from slipping out of the elongated hole 44 of the first clamping member 41. The dropout prevention member of this embodiment is also a ring-shaped member 57 formed of a snap ring, as in the embodiment of FIG. 5, but this ring-shaped member 57 is formed on a part of the shaft portion 45 </ b> B of the bolt 45. The shaft portion 45B is disposed by being engaged with the uneven thread portion 45C.

  According to this embodiment, since it is not necessary to form a groove for engaging the ring-shaped member 57 in the shaft portion 45B, the manufacturing cost of the single clamp 10 can be reduced.

  FIG. 9 also shows another embodiment of the slip-out prevention member. The ring-shaped member 58 serving as a slip-out preventing member of this embodiment is formed of an elastic material such as elastic rubber or soft synthetic resin, and is continuous in the circumferential direction unlike the snap ring. It has become.

  According to this embodiment, the operation of fitting and arranging the ring-shaped member 58 on the outer periphery of the smooth portion 45D of the bolt 45 is performed by elastically extending the ring-shaped member 58 without using a special tool. The ring-shaped member 58 can be placed on the smooth part 45D by passing the screw part 45C having a diameter larger than that of the smooth part 45D from the tip of the bolt 45, and this placement work can be performed easily. And the ring-shaped member 58 arrange | positioned at the smooth part 45D will stop in the position by its own elastic contraction effect | action, and since the thread part 45C is larger diameter than the smooth part 45D, it is a ring-shaped member. 58 can be prevented from falling off the shaft portion 45B.

  In the clamps of the respective embodiments described above, the number of first clamping members 41 and the number of second clamping members 42 is one, and the number of clamping parts for clamping the clamped member is one. The number of each of the first clamping member 41 and the second clamping member 42 is two, and the clamping part for clamping the clamped member is next. The case of the orthogonal clamp in which the number is two and the case of the universal clamp will be described. In the following description, the same reference numerals are used for members that are the same as or have the same functions as those already described.

  FIG. 10 shows a temporary scaffold 60 at a construction site where the orthogonal clamp 20 and the universal clamp 30 are used. The temporary scaffold 60 is composed of a vertical member 61, a horizontal member 62, and an oblique member 63, which are pipe members that are sandwiched members, and the orthogonal clamp 20 is used to connect the vertical member 61 and the horizontal member 62. In order to connect the longitudinal member 61 and the diagonal member 63, the universal clamp 30 is used.

  FIG. 11 shows the orthogonal clamp 20 when the vertical member 61 and the horizontal member 62 are clamped. In the orthogonal clamp 20, the number of the first clamping member 41 and the second clamping member 42 each having two pieces is shown. Among these, each 2nd clamping member 42 faces the surface on the opposite side to the 1st clamping member 41, and is making an orthogonal angle with several coupling tools 64, such as a rivet. FIG. 12 shows the universal clamp 30 when the vertical member 61 and the diagonal member 63 are clamped. In the universal clamp 30, the first clamping member 41 and the second clamping member 42 each having two pieces are provided. Among these, each 2nd clamping member 42 is rotatably connected by the rotation center member 65 with the surface on the opposite side to the 1st clamping member 41 facing each other.

  In these clamps 20 and 30, when the bolts 45 arranged on the first clamping member 41 are screwed into the nuts 52 arranged on the second clamping member 42 and tightened, as can be seen from FIGS. 11 and 12. The front ends of the respective bolts 45 project from the respective nuts 52 in directions facing each other. Since these directions are opposite to the positions where workers who work on the temporary scaffolding 60 walk or stand, it is possible to ensure the safety of the workers and the tip portions of the respective bolts 45. As in the case of the single clamp 10 described above, since it protrudes from the nut 52 between a pair of cover portions 55 formed on the second clamping member 42, the safety of the worker and the like are more effectively ensured. be able to.

  FIG. 13 shows two clamp members 66 such as two vertical members that are parallel to the universal clamp 30 by rotating the two clamp members 42 of the universal clamp 30 around the pivot center member 65. The time when it is held is shown. Even at this time, the tip portions of the respective bolts 45 protrude from the respective nuts 52 in directions facing each other, and between the cover portions 55 formed as a pair on the second clamping member 42, respectively. Since the tip of the bolt 45 protrudes from the nut 52, the safety of the operator can be more effectively ensured.

  INDUSTRIAL APPLICABILITY The present invention can be used for, for example, a clamp used for clamping a member used in various work sites including a construction site, a demolition site, and a civil engineering site.

It is a perspective view which shows the barricade in which the single clamp which concerns on one Embodiment of this invention is used. It is a side view which shows the single clamp of FIG. It is a front view which shows the single clamp of FIG. It is a perspective view which shows the single clamp before clamping the connection member of the barricade of FIG. FIG. 4 is a side sectional view of a single clamp of a bolt and nut portion showing a bolt being screwed into a nut to clamp the barricade connecting member of FIG. 1 between a first clamping member and a second clamping member. It is a figure similar to FIG. 5 which shows embodiment which made the front-end | tip part of the volt | bolt which protrudes from a nut taper. It is a figure which shows embodiment which was fixed to the 2nd clamping member with the pressurization deformation part formed in a part of a pair of cover part, Comprising: It is the figure which looked at the nut from the 2nd clamping member. FIG. 6 is a view similar to FIG. 5 showing another embodiment of a slip-out preventing member for preventing the shaft portion of the bolt from slipping out of the hole of the first clamping member. It is a figure similar to FIG. 5 which shows another embodiment about a slip-out prevention member. It is a perspective view which shows the temporary scaffold of the construction site where the orthogonal clamp and the universal clamp are used. It is a perspective view of an orthogonal clamp when two to-be-clamped members are clamped. It is a perspective view of a universal clamp when two to-be-clamped members are clamped. It is a perspective view of a universal clamp when the two to-be-clamped members which became parallel are clamped.

Explanation of symbols

3, 61, 62, 63, 66 Clamped member 10 Single clamp 20 Orthogonal clamp 30 Swivel clamp 41 First clamping member 42 Second clamping member 44 Long hole 45 Bolt 45A Head 45B Shaft portion 45C Screw portion 45E Small diameter portion 45F Taper Portions 47, 57, 58 Ring-shaped member which is a slip-out preventing member 52 Nut 52A Main body portion 52B Flange portion 56 Pressure deformation portion

Claims (12)

  Two first and second clamping members; a connecting member that pivotably connects one end of each of the first and second clamping members; and the other of the first clamping members And a nut fixed to the other end of the second clamping member, and the first clamping by screwing and tightening the bolt into the nut. In the clamp in which the member and the second clamping member clamp the clamped member, the second clamping member is provided with a pair of cover portions, and between the cover portions, the tip of the bolt projects from the nut. A clamp characterized by   The clamp according to claim 1, wherein the tip portion of the bolt is formed to have a smaller diameter than a screw portion of the bolt.   The clamp according to claim 1, wherein the tip portion of the bolt is formed in a tapered shape that tapers from a screw portion of the bolt.   The clamp according to any one of claims 1 to 3, wherein the nut is formed on the second holding member by subjecting a part of each of the cover portions to pressure deformation to the nut side. A clamp characterized by being fixed by.   5. The clamp according to claim 4, wherein the nut includes a cylindrical main body portion, and a flange portion having a diameter larger than that of the main body portion at one end portion of the main body portion. The holding member is formed with a hole into which the main body is inserted with the main body facing the first holding member, and is disposed on the opposite side of the first holding member from the hole. The clamp characterized by the flange part being fixed to the said 2nd clamping member by the said pressurizing deformation part.   The clamp in any one of Claims 1-5 WHEREIN: The said volt | bolt has a head part and the axial part extended from this head part, and the said axial part is in the hole formed in the said 1st clamping member. The clamp, wherein the bolt is rotatably arranged on the first clamping member by being inserted toward the second clamping member.   The clamp according to claim 6, wherein the hole into which the shaft portion is inserted is a long hole that is elongated in a direction orthogonal to the axial direction of the connecting member.   The clamp according to claim 6 or 7, wherein the shaft portion is provided with a slip-out preventing member for preventing the shaft portion from slipping out of the hole into which the shaft portion is inserted. And clamp.   9. The clamp according to claim 8, wherein the pull-out prevention member is a ring-shaped member fitted to the outer periphery of the shaft portion.   The clamp according to claim 9, wherein the ring-shaped member is disposed on the shaft portion by being engaged with a screw portion formed on the shaft portion.   The clamp according to claim 9 or 10, wherein the ring-shaped member is formed of an elastic material having elasticity.   The clamp according to any one of claims 1 to 11, wherein the bolt is rotatably connected to the first holding member, the first holding member and the connecting member, and the nut is fixed. There are two each of the second clamping members, and the two second clamping members are connected with the surface opposite to the first clamping member facing each other, and the tip portions of the respective bolts are connected to each other. The clamps protrude from the nuts in directions facing each other.

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