JP2017030060A - Tool and fastener attaching and detaching method using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To implement easily attaching and detaching operation of a fastener which is installed at a narrow place and in the vicinity of a structure surface.SOLUTION: A tool 2 is constructed to comprise an operation rod 3 and a holding member 10. At one end of the operation rod 3, formed is an arc-like support part 4 in which an opening space S is defined, and, at an upper surface 4A of the support part 4, protruding parts 7A to 7C are formed. At the C-letter like the holding member 10, an opening part 11 which receives a piping P with a diameter smaller than a fastener N is formed, and engagement holes 12 which can engage correspondingly with the protruding parts 7A to 7C are drilled by a many number in the circular direction of the same diameter as the circle formed by the protruding parts 7A to 7C. The opening position of the holding member 10 can be changed arbitrarily against an operation part 6 by engaging the arbitrary engagement hole 12 of the holding member 10 with the protruding parts 7A to 7C of the support part 4.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a tool for attaching / detaching a nut of a pipe connection portion installed in a narrow place and a method for attaching / detaching a fastener using the tool.

  In general, a tool such as a spanner or a wrench is used to attach and detach a nut of a pipe connection portion connected to equipment such as a toilet. However, the piping of facilities such as toilets are often stored in confined spaces. For this reason, conventionally, in order to make it easy to use in a confined space, the neck of the C-shaped head having a regular dodecagonal engagement hole that opens at one end is slidably connected to the operation lever side, and the C-shaped head A spanner wrench is known in which the connection angle between the part and the operation lever side is changed (see Patent Document 1). In addition, a spanner has been proposed in which a size adjusting member is detachably attached to the head portion at the front end of the handle, and the width of the grip portion is adjusted by changing the coupling direction of the size adjusting member (see Patent Document 2).

Utility Model Registration No. 3137679 Utility Model Registration No. 3026419

  However, the conventional spanner wrench shown in Patent Document 1 only changes the angle of the operating lever as a handle, and the conventional spanner shown in Patent Document 2 adjusts the width of the grip portion that holds the nut. Therefore, for example, there is a problem that it is difficult to attach and detach nuts (resin nuts, cap nuts, etc.) under the low tank of the toilet bowl, and pipe nuts installed in narrow spaces near the floor or near the ceiling wall. That is, if there is a spatial restriction between the nut and the surrounding wall surface or the upper and lower surfaces where the nut is arranged, there is a problem that it interferes with the operating lever to be rotated or the grip portion is difficult to insert into the nut.

  The present invention has been made to solve the above problems, and provides a tool that can be rotated even in a narrow place or a fastener such as a nut installed near a structure surface. It is the purpose.

  A tool according to claim 1 of the present invention is a tool for rotating a gripping means having a gripping surface for gripping a fastener on an inner surface with an opening for receiving a pipe, and the opening position of the gripping means is variable. It is characterized by that.

  The tool according to claim 1 of the present invention is a tool for rotating a gripping means having an opening for receiving a pipe and having a gripping surface for gripping a fastener on an inner surface by an operation unit, and the opening position of the gripping means is variable. By doing so, according to the arrangement state of the place where the fastener is arranged, it is possible to change the opening position of the gripping means with respect to the operation unit and operate the operation unit at a position where it can be easily turned. For this reason, even if it is a nut installed in the narrow place and the structure surface vicinity, attachment / detachment becomes easy.

  The tool according to claim 2 of the present invention has an operating rod having an arcuate support portion formed at one end of the operation portion and having an open space defined inside, and an opening for receiving piping. And a gripping member that is detachably attached to the support portion in a circumferential direction.

  In the tool according to claim 2 of the present invention, the gripping means has an operation rod having an arc-shaped support portion formed at one end of the operation portion and having an open space defined inside, and an opening for receiving a pipe. And a gripping member that is detachably attached to the support portion so that the circumferential position of the support portion is variably mounted. Thus, the gripping means can be freely engaged with and disengaged from the support portion formed on the operating rod. Since the circumferential position is separated from the gripping member that is variably mounted, the gripping member can be mounted on the support portion so as to be displaceable in the circumferential direction according to the arrangement state of the fasteners.

  In the tool according to claim 3 of the present invention, the support portion is provided with at least two or more protrusions on the upper surface at a predetermined interval in the circumferential direction, and the gripping member is formed in a C shape. Has a number of holes that can be fitted in correspondence with these protrusions in the circumferential direction of the same diameter, fit the holes of the gripping member to the protrusions of the support part, and place the gripping member on the support part, The inner peripheral surface of the support portion is protruded inward from the gripping surface of the superimposed gripping member.

  In the tool according to claim 3 of the present invention, the support portion is provided with at least two or more protrusions on the upper surface at a predetermined interval in the circumferential direction, and the gripping member is formed in a C shape. Has a number of holes that can be fitted in correspondence with these protrusions in the circumferential direction of the same diameter, fit the holes of the gripping member to the protrusions of the support part, and place the gripping member on the support part, By projecting the inner peripheral surface of the support portion to the inside of the gripping surface of the superimposed gripping member, the desired hole of the gripping member is fitted to the protrusion of the support portion so that it can be overlaid. It can be displaced along the circumferential direction of the support part. Further, since the support portion can be applied to either the upper or lower surface of the fastener, it can be reliably rotated.

  The tool according to claim 4 of the present invention is characterized in that the holes of the gripping member are formed at equal intervals at a predetermined angle in the circumferential direction.

  In the tool according to claim 5 of the present invention, a number of holes are formed in the support portion at predetermined intervals in the circumferential direction on the upper surface, and the gripping member is formed in a C shape. The protrusions that can be fitted in correspondence with these holes are provided with at least two protrusions at predetermined intervals in the circumferential direction of the same diameter, and the protrusions of the gripping member are fitted into the holes of the support part. The gripping member is placed on the support portion, and the inner peripheral surface of the support portion is projected inward from the gripping surface of the gripping member that is superimposed.

  In the tool according to claim 5 of the present invention, the support portion is formed with a plurality of holes at predetermined intervals in the circumferential direction on the upper surface, and the gripping member is formed in a C shape. The protrusions that can be fitted in correspondence with these holes are provided with at least two protrusions at predetermined intervals in the circumferential direction of the same diameter, and the protrusions of the gripping member are fitted into the holes of the support part. The gripping member is placed on the support portion, and the inner peripheral surface of the support portion is protruded inward from the gripping surface of the overlapped gripping member, so that the protrusion of the gripping member is fitted into the desired hole of the support portion and overlapped. Therefore, the opening position of the holding member can be displaced along the circumferential direction of the support portion. Further, since the support portion can be applied to either the upper or lower surface of the fastener, it can be reliably rotated.

  The tool according to claim 6 of the present invention is characterized in that the holes of the support portion are formed at equal intervals at a predetermined angle in the circumferential direction.

  In the tool according to claim 7 of the present invention, the gripping surface of the gripping member is formed with a number of corners obtained by subtracting a predetermined number from the number of corners of the fastener formed in a regular polygon shape. By forming the corner on the opening edge side of the edge into an edge that is bent short, it can also be used for a regular polygonal fastener having a large number of outer peripheral working surfaces of the fastener.

  The tool according to claim 8 of the present invention is characterized in that an inclined portion is provided between the operation portion and the support portion, and the heights of the operation portion and the support portion are made different.

  In the tool according to claim 8 of the present invention, an inclined portion is provided between the operation portion and the support portion, and the height of the operation portion and the support portion is made different so that the fastener is in a narrow place or a structure. Even if it is arranged in the vicinity of the surface, it is possible to secure a gap for inserting a hand between the operation portion and the structure side.

  The tool according to claim 9 of the present invention is characterized in that the gripping dimension of the operation portion is a short dimension that does not leave a remainder when gripped with a hand.

  In the tool according to the ninth aspect of the present invention, the gripping dimensions of the operation unit are short enough that the remainder is not left when the hand is gripped, so that the fastener is disposed in a narrow place or near the structure surface. However, it is easy to operate because the operation part is short.

  According to a tenth aspect of the present invention, the gripping surface of the gripping member is provided with a press-contact member that presses against the fastener by an elastic urging force to prevent dropping.

  In the tool according to claim 10 of the present invention, the gripping surface of the gripping member is provided with a pressure contact member that presses against the fastener by a resilient urging force to prevent dropping, so that the gripping member is inserted into the pipe, Since the fastener can be gripped by the gripping member and the support portion of the operating rod can be locked to the gripping member, the work efficiency is improved.

  According to the eleventh aspect of the present invention, there is provided a method for attaching and detaching a fastener using a tool for rotating a gripping means provided with a gripping surface for gripping a fastener on an inner surface by an operating portion. A first step of variably configuring the opening position of the means, and setting the opening position of the gripping means according to the arrangement of the fastener; and inserting the tool in which the opening position of the gripping means is set into the pipe to the fastener A second step of moving and holding the fastener by the holding means; and a third step of rotating the tool holding the fastener by the holding means and attaching and detaching the fastener. Is.

  In the fastener attaching / detaching method using the tool according to claim 11 of the present invention, a tool for rotating a gripping means having an opening for receiving a pipe and a gripping surface for gripping the fastener on an inner surface by an operating portion is gripped. A first step of variably configuring the opening position of the means, and setting the opening position of the gripping means according to the arrangement of the fastener; and inserting the tool in which the opening position of the gripping means is set into the pipe to the fastener The second step of moving and holding the fastener by the holding means, and the third step of rotating the tool holding the fastener by the holding means and attaching and detaching the fastener are used. In accordance with the arrangement state of the place where the fastener is arranged, after changing the opening position of the gripping means with respect to the operation unit, the tool can be inserted into the pipe and the gripping member can be gripped by the fastener. Easy to turn It can be manipulated by placement into. For this reason, even if it is the fastener installed in the narrow place and the structure surface vicinity, attachment or detachment becomes easy.

  According to a twelfth aspect of the present invention, there is provided a method for attaching and detaching a fastener using an operation rod having an arcuate support portion which is formed at one end of an operation portion and has an open space inside. A gripping member having an opening for receiving a pipe and having a circumferential position that is detachably attached to and disengaged from the support portion. The opening position of the gripping member is set according to the arrangement of the fasteners. A first step of mounting on the support portion, a second step of inserting a tool in which the opening position of the gripping member is set into the pipe, moving the tool to the fastener, and gripping the fastener by the gripping member, and a gripping member And a third step of rotating the tool holding the fastener and attaching / detaching the fastener.

  In the fastener attaching / detaching method using the tool according to claim 12 of the present invention, the gripping means is formed at one end of the operating portion, and has an operating rod having an arcuate support portion in which an open space is defined. A gripping member having an opening for receiving a pipe and having a circumferential position that is detachably attached to and disengaged from the support portion. The opening position of the gripping member is set according to the arrangement of the fasteners. A first step of mounting on the support portion, a second step of inserting a tool in which the opening position of the gripping member is set into the pipe, moving the tool to the fastener, and gripping the fastener by the gripping member, and a gripping member The third step of rotating the tool gripping the fastener by the above and performing the attachment and detachment of the fastener is provided in the first step, so that the opening of the gripping member is determined according to the arrangement of the fastener. Set the position and attach the gripping member to the support part, In step 2, the tool is inserted into the pipe and moved to the fastener, the fastener is gripped by the gripping member, and in the third step, the tool gripping the fastener is rotated. The operation unit can be arranged and operated at an easy-to-turn position, and it is easy to attach and detach even a fastener installed in a narrow place or near the structure surface.

  According to a thirteenth aspect of the present invention, a fastener attaching / detaching method using a tool is a first step in which a gripping member is inserted into a pipe arranged and moved to the fastener, and the fastener is gripped by the gripping member. In the second step, the operating rod is guided to the gripping member, the support portion is locked to the gripping member, and in the third step, the operating portion of the operating rod is rotated to attach and detach the fastener. It is characterized by this.

  In the fastener attaching / detaching method using the tool according to claim 13 of the present invention, in the first step, the gripping member is inserted into the arranged pipe and moved to the fastener, and the fastener is gripped by the gripping member. In the second step, the operating rod is guided to the gripping member, the support portion is locked to the gripping member, and in the third step, the operating portion of the operating rod is rotated to attach and detach the fastener. By doing so, in the first step, the gripping member is inserted into the arranged pipe and moved to the fastener, the fastener is gripped and held by the gripping member, and the operation rod is gripped in the second step. Since the guide is guided to the member, the support portion is locked to the gripping member, and the operation portion of the operating rod is rotated in the third step, as long as the operating rod is guided to the gripping member and locked. Can rotate. For this reason, the attaching / detaching work of the fastener can be speeded up.

  A tool according to claim 1 of the present invention is a tool for rotating a gripping means having a gripping surface for gripping a fastener on an inner surface with an opening for receiving a pipe, and the opening position of the gripping means is variable. Therefore, even if it is a fastener such as a nut installed in a narrow place or near the structure surface, depending on the arrangement state of the fastener, change the opening position of the gripping means relative to the operation part and rotate the operation part. It can be operated at an easy position. For this reason, work efficiency improves.

  According to the eleventh aspect of the present invention, there is provided a method for attaching and detaching a fastener using a tool for rotating a gripping means provided with a gripping surface for gripping a fastener on an inner surface by an operating portion. A first step of variably configuring the opening position of the means, and setting the opening position of the gripping means according to the arrangement of the fastener; and inserting the tool in which the opening position of the gripping means is set into the pipe to the fastener Since the second step of moving and holding the fastener by the gripping means, and the third step of rotating the tool holding the fastener by the gripping means and attaching and detaching the fastener, Even for a fastener such as a nut installed in a narrow place or near the structure surface, after changing the opening position of the gripping means with respect to the operation unit according to the arrangement state of the fastener, insert a tool into the piping. The gripping member is gripped by the fastener. Since it is, it can be manipulated by placement into easily turning the operating part position. For this reason, work efficiency improves.

FIG. 1 is a perspective view showing a tool according to the first embodiment of the present invention, and is a view showing a state where an operating rod and a gripping member constituting the tool are separated from each other. FIG. 2 is a perspective view showing the tool of FIG. 1, and shows a state where a gripping member is placed and locked on an operating rod of the tool. 3A and 3B are a plan view and a front view, respectively, showing an operating rod of the tool of FIG. FIGS. 4A and 4B are a plan view showing a gripping member of the tool of FIG. 1 and an explanatory view showing a state where the gripping member is placed on the operating rod. FIG. 5 is a side view of the tool shown in FIG. 1 as viewed from the side, showing a state where the gripping member is placed on the operating rod. 6 (A) to 6 (G) are explanatory views showing a state in which the gripping member is placed on the support portion of the operating rod with the circumferential position of the opening being different in the tool of FIG. FIG. 7 is an explanatory view showing a usage state of the tool of FIG. FIGS. 8A and 8B are explanatory views respectively showing a comparison of use modes in a state in which the fastener is disposed near the wall surface of the structure, and FIG. 8A is a diagram using the tool of the present invention. The mode which attaches and detaches a fastener is shown, (B) shows the mode which attaches and detaches a fastener using the conventional tool (spanner). FIG. 9 is a flowchart showing one process of the method for attaching and detaching the fastener using the tool according to the first embodiment. FIG. 10 is a flowchart illustrating another process of the method for attaching and detaching the fastener using the tool according to the first embodiment. FIG. 11 is a perspective view showing a tool according to the second embodiment of the present invention, and is a view showing a state where an operating rod and a gripping member constituting the tool are separated from each other. FIG. 12 is a perspective view showing a tool according to the third embodiment of the present invention. FIGS. 13A and 13B are a plan view and a cross-sectional view of the main part showing a modification of the gripping member of the tool according to each embodiment of the present invention.

  The purpose of facilitating the attachment / detachment operation even in a narrow place or in the vicinity of the structure surface is realized by changing the opening position of the tool gripping means.

  The present invention will be described below with reference to the embodiments shown in the drawings. The same reference numerals indicate the same or corresponding parts. First, the tool which concerns on the 1st Embodiment of this invention is demonstrated based on drawing. FIG. 1 and FIG. 2 are perspective views showing a tool according to the first embodiment of the present invention. FIG. 1 is a view showing a state where an operating rod and a gripping member constituting the tool are separated from each other. FIG. 2 is a view showing a state in which the gripping member is placed and locked on the operating rod of the tool. The tool 2 according to the first embodiment of the present invention includes an operation rod 3. As shown in FIGS. 3A and 3B, the operation rod 3 is formed by bending a metal plate. The operation rod 3 has an open space S defined at one end and inside. A semicircular arc-shaped support part (gripping means) 4 and an operation part 6 that is held and rotated by a hand through an inclined part 5 that is continuous with the support part 4 and bent downward are formed. . The support part 4 and the operation part 6 have different heights. For this reason, at the time of work, even if fasteners N such as cap nuts and resin nuts are arranged near structures such as tanks, near the top and bottom surfaces, and near the wall surface, it is easy to put a hand and work easily. Fasteners N such as nuts arranged near the structure, upper and lower surfaces, or near the wall surface have a parallel working surface distance (distance between two surfaces) D2 that is larger than the diameter D1 of the pipe P. Yes. Moreover, the operation part 6 is formed in the short dimension of the length which the grip dimension L1 does not have a remainder when it grasps with a hand. For this reason, even if the work space is narrow, the operation unit 6 is less likely to interfere with surrounding structures, and the work can be easily performed. In addition, you may comprise the operating rod 3 with the high intensity | strength resin plate which shape | molded the synthetic resin.

  By the way, in the tool 2 according to the first embodiment, three projecting portions (gripping means) 7A to 7C are provided along the circumferential direction on the semicircular arc upper surface 4A of the support portion 4. Between the protrusions 7A-7B and 7B-7C, in order to reduce the weight of the operating rod 3, a plurality of through holes 8 are formed at predetermined intervals in the circumferential direction. A metal C-shaped gripping member (grip means) 10 is placed on the support portion 4 in an overlapping manner. As described above, the support unit 4, the protrusions 7 </ b> A to 7 </ b> C, and the grip member 10 constitute a grip means. The distance L2 between the opening inner peripheral edge of the support part 4 is the length corresponding to the distance between the action surfaces of the regular polygon fastener N (in this embodiment, hexagon) parallel to each other.

  As shown in FIG. 4A, the C-shaped gripping member 10 substantially matches the circumferential direction of the support portion 4, and the opening ends 11 </ b> A and 11 </ b> B of the opening portion 11 are the arc ends 4 </ b> B of the support portion 4. It extends in the circumferential direction from 4C. A gripping surface 13 corresponding to the polygonal working surface of the fastener N is formed on the inner surface of the gripping member 10. The linear distance L3 between the open ends 11A and 11B of the gripping member 10 is longer than the diameter D1 of the pipe P and shorter than the distance D2 between the two surfaces of the fastener N having a diameter larger than the diameter D1. (D1 <L3 <D2). That is, when the gripping member 10 is inserted into the pipe P from the lateral direction, a gap is secured between the gripping surface 13 of the gripping member 10 and the outer peripheral surface of the pipe P, and the gripping member 10 can move along the pipe P. The gripping member 10 is fitted into the fastener N from the axial direction of the fastener N. That is, the gripping member 10 cannot grip the fastener N through the opening 11 from the lateral direction of the fastener N. For example, a plurality of types of the operating rod 3 and the gripping member 10 are manufactured as a set for each nut diameter of 70 mm (nominal diameter of the screw) and nut diameter of 60 mm.

  Engageable to the gripping member 10 in a circumferential direction having the same diameter as the circumference formed by the protrusions 7A to 7C and the through hole 8 provided on the support portion 4 in correspondence with the protrusions 7A to 7C. A large number of holes (holes) 12 are formed through the top and bottom. The engagement holes 12 are formed at equal intervals at an angle of 15 degrees. The angle between the protrusions 7A-7B and 7B-7C is set to a multiple of 15 degrees. In this embodiment, the angle between the protrusions 7A-7B and 7B-7C is set to 90 degrees. Therefore, as shown in FIG. 4B and FIG. 5, the gripping member 10 is attached to the support portion 4 by aligning the arbitrary engagement holes 12 of the gripping member 10 with the protrusions 7 </ b> A to 7 </ b> C of the support portion 4. When stacked, the protrusions 7A to 7C are fitted into the engagement holes 12, and the gripping member 10 is locked to the support portion 4 to prevent the support portion 4 and the gripping member 10 from rotating. At this time, the operator can freely determine the circumferential position of the gripping member 10 with respect to the support portion 4. That is, as shown in FIGS. 6A to 6G, the circumferential position of the opening 11 of the gripping member 10 can be freely changed with respect to the operation unit 6. FIG. 7 is an explanatory view showing a use state of the tool 2 in which the gripping member 10 is placed on the support portion 4. After the gripping member 10 of the tool 2 is inserted into the pipe P, the tool 2 is moved to the fastener N. The state which hold | gripped and grasped the holding member 10 from the axial direction of the fastener N is shown. When the gripping member 10 is locked to the support portion 4, a part 9 of the inner peripheral surface of the support portion 4 is inward of the corner portion of the gripping surface 13 of the gripping member 10 as shown in FIG. To protrude.

  Corner portions 14 </ b> A to 14 </ b> E that prevent the fastener N from rotating are formed on the inner peripheral gripping surface 13 of the gripping member 10. The number of the corner portions 14A to 14E is a number obtained by subtracting a predetermined number from the number of corner portions of the fastener N whose outer peripheral working surface is formed in a regular polygonal shape. The number of the corner portions 14A to 14E is a minimum number necessary to prevent rotation. That is, for example, a regular hexagonal nut has 5 corners reduced by 1, and a regular octagonal nut has 5 corners reduced by 3. ing. The corner 15 on the opening edge side of the gripping member 10 is formed as an edge that is bent short.

  In this embodiment, the support hole 4 is provided with the through hole 8. However, the present invention is not limited to this, and the through hole 8 is penetrated in consideration of the strength of the metal plate of the operation rod 3 (thickness of the metal plate). Needless to say, the holes 8 need not be provided. Further, in this embodiment, the three protrusions 7A to 7C are provided in the circumferential direction, but the present invention is not limited to this, and as long as it matches the engagement hole 12, it is sufficient to provide at least two or more. Three or more may be sufficient.

  Next, a fastener attaching / detaching method using the tool 2 according to the first embodiment will be described based on the action of the tool 2. In the tool 2 according to the present embodiment, a large number of engagement holes 12 are formed in the holding member 10 at regular intervals at predetermined angles on the protrusions 7A to 7C on the upper surface of the support portion 4 formed at one end of the operation rod 3. Arbitrary engagement holes 12 can be fitted. For this reason, as shown in FIG. 6, the position of the opening 11 of the gripping member 10 with respect to the operation unit 6 can be freely changed. At the time of use, for example, as shown in FIG. 8A, the fastener (nut) N is disposed near the upper surface or the lower surface of the structure, and the wall surface of the structure is also near the fastener N. When approaching, the operator determines the opening position of the gripping member 10 in consideration of the movable range of the operation unit 6 and attaches it to the support unit 4 (see first step S1, FIG. 9). The gripping member 10 of the tool 2 is inserted into the pipe P, moved to the fastener N, the gripping member 10 is fitted into the fastener N from the axial direction of the fastener N, and the fastener N is gripped (second step S2). (Refer to the left side of FIG. 8A). Then, the operation unit 6 of the tool 2 holding the fastener N by the holding member 10 is rotated to attach and detach the fastener N (see the third step S3, the right side of FIG. 8A). At this time, since the operation unit 6 of the tool 2 is different in height from the support unit 4 to which the gripping member 10 is mounted, even if the gripping member 10 is inserted into the fastener N at the upper and lower surfaces or the wall surface of the structure. The operation unit 6 can secure a gap between the operation unit 6 and the wall surface, and the operator can hold the operation unit 6 and rotate it. For this reason, even if the fastener N is installed in the vicinity of the structure surface, the turning operation can be easily performed. As described above, in the tool 2 according to the present embodiment, the support portion 4 of the operating rod 3 and the grip member 10 acting on the fastener N side are separated from each other, and both of them can be freely engaged and disengaged at an arbitrary position. To be locked. Since the operation rod 3 and the gripping member 10 are manufactured in different types corresponding to various diameters, the optimal gripping member 10 can be selected and used according to the fastener N. Thus, in the attachment / detachment method of the fastener using the tool 2 according to the first embodiment, the operation unit can be arranged and operated at a position where it can be easily turned. For this reason, even if it is the fastener installed in the narrow place and the structure surface vicinity, attachment or detachment becomes easy.

  Next, another example of a fastener attaching / detaching method using the tool 2 according to the first embodiment will be described. As shown in FIG. 10, the fastener attaching / detaching method using the tool 2 according to another example is as follows. First, the gripping member 10 is inserted into the arranged pipe P and moved to the fastener N to grip the fastener N. It is held and held by the member 10 (first step S11). The gripping member 10 may be held by the fastener N by an operator, or the pressing member 52 may be provided and held on the gripping member 10 as will be described later. Next, the operating rod 3 is guided to the gripping member 10, and the support portion 4 is locked to the gripping member 10 (second step S12). Then, the operating portion 6 of the operating rod 3 is rotated to attach / detach the fastener (third step S13). Thus, in the attachment / detachment method of the fastener using the tool 2 according to another example, the operation rod 3 can be rotated as long as the operation rod 3 is guided to the gripping member 10 and locked. For this reason, the attaching / detaching operation of the fastener N can be speeded up.

  FIG. 8B shows a comparative example in which a fastener (nut) N arranged on the wall surface is attached and detached using a conventional general spanner (tool). As shown in B), it can be seen that it is difficult for the gripping part to hit the fastener N close to the surface of the structure, and that the front part in the rotational direction of the spanner hits the floor and is difficult to rotate. On the other hand, in the tool 2 according to the embodiment, the range in which the rotation operation is possible is wide.

  FIG. 11 shows a tool 20 according to the second embodiment of the present invention. The tool 20 according to the first embodiment has a protrusion 7A on the support upper surface 4A of the operating rod 3. -7C is formed, and an arbitrary engagement hole 12 of the gripping member 10 is fitted into the protrusions 7A-7C, whereas a semicircular arc-shaped support portion 24 is formed at one end of the operation rod 23, The arcuate support portion 24 has a plurality of through holes 27 formed at equal intervals along the circumferential direction at a predetermined angle (15 degrees). The three protrusions 29A to 29C are provided in the circumferential direction having an angle matching the through hole 27 and the same diameter as the circumference formed by the through hole 27, and the protrusions 29A to 29C of the gripping member 28 are supported by the support portion. It is inserted into any through hole 27 of 24, and the gripping member 28 is placed on the support portion 24 and placed. The point it is different. That is, in the first embodiment, the protrusions 7A to 7C are provided in the support part 4 and the engagement hole 12 is provided in the grip member 10, whereas the protrusions 29A to 29C are provided in the grip member 28 and the through hole. 27 is provided on the support 24 and is reversed. Reference numerals 25 and 26 denote an inclined portion and an operation portion, respectively.

  FIG. 12A shows a tool 30 according to the third embodiment of the present invention. The tool 30 includes tools 2 and 20 according to the first and second embodiments described above. , 23 is constituted by an integral metal plate or resin plate, and the gripping part constituted by the gripping members 10, 28 and the support parts 4, 24 is fixed to the operation parts 6, 26, The operating rod 33 is provided with a swinging part (hinge part) 40 between the operating part 36 and the inclined part 35, and the operating part 36 is configured to be swingable with respect to the support part 34 so that the bending angle can be freely changed. The difference is that it is possible to. That is, as shown in FIG. 12 (B), a swinging portion 40 comprising a hinge portion 38 that is freely rotated by a pivot pin 37 is provided between the inclined portion 35 and the operation portion 36, and the operation portion. An angle of 36 is freely changed with respect to the gripping member 10 (28). With this configuration, even when the fastener N is disposed in a narrow place or near the structure surface, the operation unit 36 can be operated while being inclined with respect to the gripping member 10 (28). For this reason, it becomes easy to work.

  FIG. 13 shows a modification of the gripping member according to each of the above embodiments. A gripping member 50 according to this modification is provided with a fastener (cap nut, resin nut) on a gripping surface 51 formed on the inner surface. A pressure contact member 52 is provided which is pressed against the N working surface by a resilient urging force to prevent dropping. The pressure contact member 52 is housed in a housing 54 fitted in a housing hole 53 formed in the gripping surface 51, a spring member 55 such as a spring housed inside the housing 54, and can be moved forward and backward in the housing 54. The ball member 57 is always urged by the elastic member 55 and partially protrudes from the outer opening 56 of the housing 54. For this reason, when the gripping member 50 is gripped by the fastener N, the gripping member 50 is held in a state of being prevented from falling off. For this reason, when the gripping member 50 is gripped by the fastener N alone, it is not necessary to hold and hold it by the hand, and it is easy to work. In this modification, the pressing member 52 is provided on the gripping member 10 and is used as a holding unit that is held by the fastener N. However, the holding member 52 is not limited to the pressing member 52, and the fastener N is prevented from falling off. Needless to say, it is sufficient if it can be held.

  In the tools 2 and 20 according to each of the first and second embodiments, a protrusion is provided on either the support portion or the gripping member, and a plurality of holes are formed on the other side at predetermined intervals in the circumferential direction. These protrusions and holes are fitted and locked together. However, the present invention is not limited to this, and it is sufficient that the support portion and the gripping member are detachably locked. Both holes are formed by aligning a large number of holes at predetermined intervals along the circumferential direction, and the support member and the gripping member are overlapped so that the holes of the both are aligned with each other, thereby adjusting the opening position of the gripping member. The connecting member such as the headed pin or the split pin may be inserted into the plurality of holes. Moreover, you may make it provide a notch in a predetermined space | interval along the circumferential direction in either one of a support part and a holding member, and may provide the latching | locking part latched by these notches in the other. Further, a tooth portion is formed on one of the inner and outer peripheral sides of the support portion, a tooth portion corresponding to the support portion side tooth portion is formed on the grip member, and the support portion side tooth portion and the grip member side tooth portion are arbitrarily set. You may make it mesh | engage in a position. Further, a magnetic part may be provided on the gripping member, and the gripping member may be held on a support part of an operating rod made of a metal plate.

2 Tool 3 Operating rod 4 Support part (gripping means)
4A Upper surface of support portion 6 Operation portion 7A to 7C Projection (gripping means)
10 Gripping member (gripping means)
11 Opening 12 Engagement hole (hole)
13 Inner surface of gripping member (grip surface)
S Open space

Claims (13)

  A tool for rotating a gripping means having an opening for receiving piping and having a gripping surface for gripping a fastener on an inner surface by an operating portion, wherein the opening position of the gripping means is variable.   The gripping means is formed at one end of the operation portion, and has an operation rod having an arc-shaped support portion with an open space defined inside, and an opening for receiving a pipe, and is detachably connected to the support portion in the circumferential direction. The tool according to claim 1, comprising a gripping member variably mounted at a position. The support portion is provided with at least two protrusions at a predetermined interval in the circumferential direction on the upper surface,
The gripping member is formed in a C shape, and the gripping member is provided with a number of holes that can be fitted in correspondence with these protrusions in the circumferential direction of the same diameter,
The hole of the grip member is fitted to the protrusion of the support portion, the grip member is placed on the support portion, and the inner peripheral surface of the support portion is protruded inward from the grip surface of the overlapped grip member. 2. The tool according to 2.   The tool according to claim 3, wherein the holes of the gripping member are formed at equal intervals at a predetermined angle in the circumferential direction. A number of holes are formed in the support portion at predetermined intervals in the circumferential direction on the upper surface,
The gripping member is formed in a C-shape, and the gripping member is provided with at least two or more protrusions with a predetermined interval in the circumferential direction of the same diameter, which can be fitted in correspondence with these holes, The protruding portion of the gripping member is fitted into the hole of the support portion, the gripping member is placed on the support portion, and the inner peripheral surface of the support portion is protruded inward from the gripping surface of the overlapped gripping member. 2. The tool according to 2.   The tool according to claim 5, wherein the holes of the support part are formed at equal intervals at a predetermined angle in the circumferential direction. The gripping surface of the gripping member is formed with a number of corners obtained by subtracting a predetermined number from the number of corners of the fastener formed in a regular polygon shape,
The tool according to any one of claims 2 to 6, wherein a corner on the opening edge side of the gripping member is formed at an edge that is bent in a short shape.   The tool according to any one of claims 2 to 7, wherein an inclined part is provided between the operation part and the support part, and the heights of the operation part and the support part are made different.   The tool according to any one of claims 1 to 8, wherein a grip size of the operation portion is a short length that does not leave a remainder when gripped by a hand.   The tool according to any one of claims 2 to 9, wherein a pressure contact member is provided on a grip surface of the grip member so as to prevent it from coming off by being pressed against the fastener by an elastic biasing force. A tool for rotating a gripping means having an opening for receiving a pipe and having a gripping surface for gripping a fastener on an inner surface by an operation unit, and an opening position of the gripping means are variably configured,
A first step of setting the opening position of the gripping means according to the arrangement of the fasteners;
A second step of inserting a tool in which the opening position of the gripping means is set into the pipe and moving it to the fastener, and gripping the fastener by the gripping means;
And a third step of attaching and detaching the fastener by rotating the tool holding the fastener by the gripping means, and a method for attaching and detaching the fastener using the tool. The gripping means is formed at one end of the operation portion, and has an operation rod having an arc-shaped support portion with an open space defined inside, and an opening for receiving a pipe, and is detachably connected to the support portion in the circumferential direction. And comprising a gripping member that is variably mounted,
A first step of setting the opening position of the gripping member according to the arrangement of the fastener and mounting it on the support part;
A second step of inserting a tool in which the opening position of the gripping member is set into the pipe and moving it to the fastener, and gripping the fastener by the gripping member;
The method for attaching and detaching a fastener using a tool according to claim 11, further comprising a third step of rotating the tool holding the fastener by the gripping member and attaching and detaching the fastener. In the first step, the gripping member is inserted into the arranged pipe and moved to the fastener, the fastener is gripped and held by the gripping member,
In the second step, the operating rod is guided to the gripping member, the support portion is locked to the gripping member,
The method of attaching or detaching a fastener using a tool according to claim 12, wherein in the third step, the operating portion of the operating rod is rotated to attach or detach the fastener.