JP4685916B2 - Fastener - Google Patents

Description

  The present invention relates to a fastening tool for fastening an object to be fastened such as a pipe material or a bar material.

  The tightening tool has two substantially tightening members that are substantially C-shaped and fasten an object to be tightened, a single pivotal support that pivots each of the tightening members in a contact / separation direction, and a distal end of each tightening member A tightening member that tightens the tip of the tightening member, and tightens the tightened object by rotating the two tightening members in the approaching direction by tightening the tightening member. It is configured such that the tightening of the object to be tightened can be released by rotating the two tightening members to the separation side by the loosening operation of the member (see, for example, Patent Document 1).

Also, a support body having one pivot, two tightening members pivotally supported on the pivot so as to be able to rotate in the approaching / separating direction, and a distal end portion of one tightening member locked to the other tightening member To be fastened by rotating the two tightening members in the approaching direction from the position at the rotation limit on the separation side in a state where the locking by the locking body is released. There is also known a tightening tool configured to release the tightening of the object to be tightened by tightening each of the tightening members and rotating each of the tightening members to the separation side.
JP 2007-285494 A

  However, in the tightening tool described in Patent Document 1, after the object to be tightened is inserted between the two tightening members located at the rotation limit on the remote side, between the front end portions of the tightening member. Since it is necessary to manually operate the tightening member that is mounted over the two tightening members and rotate the two tightening members in the approaching direction, the object to be tightened cannot be quickly tightened, and the efficiency of the tightening work is poor. There is a problem. In addition, since the object to be tightened cannot be inserted from between the distal end portions of the two tightening members, the tightening member is provided so as to easily insert the object to be tightened having a relatively long length such as a pipe material or a bar material. When it is removed, it is necessary to operate the tightening member after picking up the tightening member with a finger and rotating the tightening member in the approaching direction.

  Further, in the other tightening tools described above, after the object to be tightened is inserted between the two tightening members positioned at the rotation limit on the remote side, the two tightening members are picked with fingers, and the tightening member Since it is necessary to operate the locking bodies after each of them is rotated in the approaching direction, there is a problem that the efficiency of the tightening work is poor.

  The present invention has been made in view of such circumstances, and a main object thereof is to provide a fastening member pivotally supported by a support body so as to be capable of rotating in a contact / separation direction, from a pivotally supported base portion to a tip portion. An object to be tightened is provided by providing a projecting part projecting in the opposite direction and providing a pressing part that abuts against the object to be tightened and presses the projecting part when the tightening member is positioned at the rotation limit on the remote side. It is an object of the present invention to provide a tightening tool that can automatically rotate a tightening member in an approaching direction with a load of.

  Another object is to provide two pivot parts that are spaced apart in the contact / separation direction and pivotally support the two fastening members, so that the fastening member is positioned at the rotation limit on the separation side. An object of the present invention is to provide a fastener that can make the distance between the distal ends of the fastening members relatively long.

  Another object of the present invention is to provide a fastening tool that can be constructed without increasing the number of parts by integrating a pressing portion with a protruding portion.

  Another object of the present invention is to provide a fastening tool in which only the pressing portion can be replaced even if the pressing portion is damaged by the contact of the object to be tightened by attaching the pressing portion to the protruding portion. There is.

  Another object is to hold the pressing part movably on the support so that the pressing part can be replaced even if the pressing part is damaged by the contact of the object to be tightened. It is in providing tools.

  Another object is to provide a locking body that locks the tip of one tightening member to the other tightening member, so that an object to be tightened is placed between the tightening members positioned at the rotation limit on the remote side. An object of the present invention is to provide a tightening tool that can maintain the tightened state of an object to be tightened only by operating a locking body after being inserted.

  Another object is substantially C-shaped, and protrudes in the opposite direction from the distal end to the two fastening members pivotally supported by the support so as to be pivotable in the contact / separation direction. By providing a pressing portion that is formed integrally with the protruding portion and the protruding portion, and presses the protruding portion in contact with the object to be tightened when each of the tightening members is positioned at the rotation limit on the separation side, An object of the present invention is to provide a tightening tool capable of automatically rotating two tightening members in the approaching direction by a load of an object to be tightened.

The tightening tool according to the present invention is provided with two tightening members for tightening an object to be tightened, and at least one of the tightening members is pivotally supported by a support body so as to be able to rotate in a contact / separation direction. The one tightening member has a protruding portion that protrudes in a direction opposite to the distal end from the pivotally supported base, and the one tightening member is positioned at a rotation limit on the remote side, A pressing part that contacts the object and presses the protruding part is mounted on the protruding part .

According to the present invention, when an object to be tightened is inserted between the tightening members positioned at the rotation limit on the remote side, the object to be tightened abuts against the pressing portion and is pressed by the load of the object to be tightened. By pressing the protruding portion from the portion, the tightening member connected to the protruding portion can be automatically rotated in the approaching direction, and the object to be tightened can be tightened automatically. Therefore, even when a relatively large number of fasteners are used, the efficiency of the fastening operation can be increased, and the cost of the work in which the fasteners are used can be reduced. In addition, even if the pressing portion is damaged due to contact with the object to be tightened, only the pressing portion can be replaced, so that the durability of the tightening tool can be improved.

Moreover, it is preferable that the tightening tool according to the present invention has a configuration in which two pivotally supporting portions that pivotally support the two tightening members are separated in the contact / separation direction.
In the present invention, since the base portions of the two tightening members are separated from each other in the contact / separation direction, the distance between the distal end portions of the tightening members when the tightening member is positioned at the rotation limit on the separation side is relatively large. The length can be increased, and the workability of inserting the object to be tightened between the tightening members can be improved.

Moreover, it is preferable that the fastener according to the present invention has a configuration in which the pressing portion is held movably on the support.
In the present invention, even if the pressing portion is damaged due to contact with the object to be tightened, only the pressing portion can be replaced, so that the durability of the tightening tool can be improved.

According to the present invention, the tightening member can be automatically rotated in the approach direction by the load of the object to be tightened, and the object to be tightened can be automatically tightened, so that a relatively large number of tightening tools are used. Even in this case, the efficiency of the tightening work can be increased, and the cost of the work in which the tightening tool is used can be reduced. In addition, even if the pressing portion is damaged due to contact with the object to be tightened, only the pressing portion can be replaced, so that the durability of the tightening tool can be improved.

Further , according to the present invention, since the base portions of the two tightening members are separated from each other in the contact / separation direction, the distance between the distal end portions of the tightening members when the tightening member is positioned at the rotation limit on the separation side is compared. Therefore, the workability of inserting the object to be tightened between the tightening members can be improved.

In addition, according to the present invention, even if the pressing portion is damaged due to contact with the object to be tightened, only the pressing portion can be replaced, so that the durability of the tightening tool can be improved.

Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments thereof.
Embodiment 1
FIG. 1 is a front view showing the configuration of the fastening tool according to the present invention, FIG. 2 is a cross-sectional view showing the construction of the fastening tool, and FIG. 3 is a cross-sectional view showing a state where the fastening member is rotated in the separation direction.

  The tightening tool shown in the figure is capable of rotating two tightening members 1 and 2 for tightening a hook-like object A to be tightened such as a pipe material or a bar material, and the tightening members 1 and 2 in the contact / separation direction. And a locking body 4 that locks the distal end portion of one tightening member 1 to the other tightening member 2.

  The support body 3 includes an attachment shaft 31 having a threaded portion 31a at the tip, a support portion 32 coupled to the base end of the attachment shaft 31, and two support members 3 that are spaced apart from each other in the contact / separation direction. And pivots 5 and 5. The support portion 32 is coupled to the mounting shaft 31 and has a rectangular bottom portion 32a and two side walls 32b and 32b connected to both edges of the bottom portion 32a, and is separated from the side walls 32b and 32b in the contact / separation direction. Thus, two fitting holes 32c and 32c are opened, and both ends of the pivot shafts 5 and 5 are fitted into the fitting holes 32c and 32c. Between the fitting holes 32c and 32c of the side walls 32b and 32b, concave portions 32d and 32d are provided corresponding to the peripheral surface of the object A to be tightened, and the tightening member 1 is provided on the side walls 32b and 32b. , 2 are provided with restricting portions 33, 33 for stopping at a rotation limit separated from each other.

  The tightening members 1 and 2 have a substantially C-shape having shaft holes 11 and 21 at the pivotally supported bases, and the pivot shafts 5 and 5 are fitted in the shaft holes 11 and 21 of the tightening members 1 and 2, respectively. Opposite the separation direction.

  The bases of the tightening members 1 and 2 are integrally provided with projecting parts 12 and 22 projecting in the opposite direction from the tip part from the base part, and the tightening members 1 and 2 are separated from the projecting parts 12 and 22, respectively. The pressing portions 13 and 23 that project outward from the recesses 32d and 32d of the side walls 32b and 32b and press the projections 12 and 22 in contact with the object to be tightened A are integrally provided. It has been.

  The pressing portions 13 and 23 are connected to the opposing curved inner surfaces of the tightening members 1 and 2, have sharp tips, and the side walls 32 b and 32 b when the tightening members 1 and 2 rotate in the approaching direction from the rotation limit on the separation side. It is comprised so that it may reverse | retreat inside.

  One end of the tightening member 1 has a groove 14 that is recessed in the contact / separation direction, a fitting hole 15 that penetrates from the groove 14, a fitting shaft 16 that is fitted in the fitting hole 15, A locking body 4 that is rotatably held on the fitting shaft 16 is provided.

  The locking body 4 has a lever 41 pivotally supported by the fitting shaft 16 and a locking ring 42 pivotally supported in the middle of the lever 41, and the locking ring 42 is engaged with a convex portion described later. By being stopped, the tightening state of the tightening members 1 and 2 can be reliably maintained.

  A convex portion 24 is integrally provided at the tip of the other tightening member 2.

  When the fasteners configured as described above are combined with a hook-like fastening object A such as a pipe member or a bar member, a three-dimensional structure such as a house, a fence, a shelf, a scaffold, a tent, or a simple building is formed. Used for etc. An attachment shaft 31 of the support 3 is attached to a basic member that supports the object to be tightened A with a nut that is screwed onto the screw portion 31a, and the tightening tool is fixed to the basic member.

  When the object to be tightened A is tightened, the locking by the locking body 4 is released, and as shown in FIG. 3, the tightening members 1 and 2 are positioned at the rotation limit on the separation side and abut against the regulating portions 33 and 33. Since the distance between the end portions of the tightening members 1 and 2 is relatively long, the middle of the hook-like object A to be tightened is between the end portions of the tightening members 1 and 2 and between the tightening members 1 and 2. Can be inserted easily. Further, the pressing portions 13 and 23 provided integrally with the protruding portions 12 and 22 protruding from the base portions of the tightening members 1 and 2 protrude outward from the concave portions 32d and 32d of the side walls 32b and 32b in the support 3. Yes. Therefore, due to the insertion of the bowl-shaped object to be tightened A, the peripheral surface of the object to be tightened A comes into contact with the pressing parts 13 and 23, and the load of the object to be tightened A is projected from the pressing parts 13 and 23 to the protruding part 12. , 22 and the protrusions 12, 22 are pressed. By the pressing of the projecting portions 12 and 22, the fastening members 1 and 2 integral with the projecting portions 12 and 22 are automatically rotated in the approaching direction, and the tightened object A is automatically tightened. Thereafter, by operating the locking body 4 of one of the tightening members 1 and locking the locking ring 42 to the convex portion 24 of the other tightening member 2, the tightening state of the tightening members 1 and 2 is reliably maintained. can do.

  In this way, the fastening members 1 and 2 are automatically moved in the approaching direction from the state where they are located at the rotation limit on the separation side only by inserting the middle of the object to be fastened A between the two fastening members 1 and 2. Therefore, even when a relatively large number of fasteners are used, the efficiency of the fastening operation can be increased, and the cost of the work in which the fasteners are used can be reduced.

  Further, when releasing the tightening of the object A to be tightened, the locking body 4 is rotated, the locking by the locking ring 42 is released, the clamping members 1 and 2 are picked, and the tightening members 1 and 2 are separated. By rotating in the direction, the tightening by the tightening members 1 and 2 can be released, and the object A to be tightened can be easily extracted from between the tightening members 1 and 2.

Embodiment 2
FIG. 4 is a cross-sectional view showing another configuration of the fastening tool according to the present invention, and FIG. 5 is a cross-sectional view showing a state in which the fastening member is rotated in the separation direction. In this tightening tool, instead of allowing the two tightening members 1 and 2 to rotate, one tightening member 1 can be rotated in the contact / separation direction, and the other tightening member 2 is fixed to the support 3. is there.

  In this embodiment, the base part of one tightening member 1 is provided with a projecting part 12 projecting from the base part in the direction opposite to the tip part and a pressing part 13 integral with the projecting part 12. The other tightening member 2 is formed integrally with the support.

In this tightening tool, when the hook-like object A is tightened, the locking by the locking body 4 is released, and one tightening member 1 is positioned at the rotation limit on the remote side, The pressing portion 13 provided integrally with the protruding portion 12 protruding from the base portion of the one tightening member 1 protrudes outward from the concave portions 32d and 32d of the side walls 32b and 32b of the support 3. Therefore, when the middle portion of the bowl-shaped object to be tightened A is inserted between the front ends of the tightening members 1 and 2 and between the tightening members 1 and 2, the peripheral surface of the object to be tightened A is pressed against the pressing portion 13. , The load of the object to be tightened A is applied from the pressing portion 13 to the protruding portion 12, and the protruding portion 12 is pressed. By the pressing of the projecting portion 12, the fastening member 1 integrated with the projecting portion 12 automatically rotates in the approaching direction, and the object to be tightened A is automatically tightened. Thereafter, the locking member 4 provided on one of the tightening members 1 is operated, and the locking ring 42 is locked to the convex portion 24 of the other tightening member 2, whereby the tightening states of the tightening members 1 and 2 are tightened. Can be reliably maintained.
Since other configurations and operations are the same as those of the first embodiment, the same components are denoted by the same reference numerals, and detailed descriptions and descriptions of the operations are omitted.

Embodiment 3
FIG. 6 shows another configuration of the fastening tool according to the present invention, and is a partial cross-sectional view showing a state in which the fastening member is rotated in the separation direction. Instead of providing the pressing portions 13 and 23 integrally with the projecting portions 12 and 22, this tightening tool is provided with the joining surfaces 12 a and 22 a on the projecting portions 12 and 22 of the tightening members 1 and 2, and the joining surfaces 12 a and 22 a The pressing portions 13a and 23a formed separately from the tightening members 1 and 2 are mounted by a bonding means such as an adhesive, and when the tightening members 1 and 2 are rotated in the separation direction, the pressing portion 13a , 23a project outward from the recesses 32d, 32d of the side walls 32b, 32b.
Since other configurations and operations are the same as those of the first and second embodiments, the same components are denoted by the same reference numerals, and the detailed description and description of the operations are omitted.

Embodiment 4
FIG. 7 is a partial cross-sectional view showing another configuration of the fastening tool according to the present invention, and FIG. 8 is a partial cross-sectional view showing a state in which the fastening member is rotated in the separation direction. In this tightening tool, instead of attaching the pressing portions 13 and 23 to the projecting portions 12 and 22, the pressing portion 6 formed separately from the tightening members 1 and 2 is movably held on the support 3.

  In this embodiment, the protrusions 12 and 22 of the tightening members 1 and 2 are provided with receiving surfaces 12b and 22b, and the holding hole 34 is provided between the protrusions 12 and 22 of the bottom 32a of the support 3 to hold the holding member. The pressing part 6 which contacts the receiving surfaces 12b and 22b is movably held in the hole 34.

The pressing portion 6 has a base portion 61 facing the receiving surfaces 12b, 22b and a leg portion 62 that is connected to the base portion 61 and is movably fitted and held in the holding hole 34. , 2 rotate in the separating direction, the projecting portions 12, 22 abut against the base 61, the pressing portion 6 moves at the projecting portions 12, 22, and the tightening members 1, 2 are loaded by the load of the object to be tightened A. Is configured so that the pressing portion 6 is retracted by the load of the object to be tightened A when it is rotated in the approaching direction from the state positioned at the rotation limit on the separation side.
Since other configurations and operations are the same as those of the first and second embodiments, the same components are denoted by the same reference numerals, and the detailed description and description of the operations are omitted.

  In the embodiment described above, the tightening members 1 and 2 are formed in a substantially C shape. However, the tightening members 1 and 2 may have any shape corresponding to the cross-sectional shape of the object A to be tightened. The shape of the tightening members 1 and 2 is not particularly limited.

  Further, in the embodiment described above, in the configuration including the fixed tightening member 2 and the movable tightening member 1, the movable tightening member 1 is provided with the locking body 4. However, in addition, the locking body 4 is fixed. It is good also as a structure which provides in the clamping member 2 and provides the convex part 24 in the movable clamping member 1. FIG.

  In the embodiment described above, the locking body 4 that locks the distal end portion of one tightening member 1 to the other tightening member 2 is provided. However, the locking body 4 is not always necessary. In this case, the tightening members 1 and 2 rotate in the approaching direction from the rotation limit separated by the load of the object to be tightened A, and the tightening members 1 and 2 tighten the object A to be tightened.

It is a front view which shows the structure of the fastener based on this invention. It is sectional drawing which shows the structure of the fastener based on this invention. It is sectional drawing which shows the state which the fastening member of the fastening tool which concerns on this invention is rotating to the separation direction. It is sectional drawing which shows the other structure of the fastener based on this invention. It is sectional drawing which shows the state which the fastening member of the fastening tool which concerns on this invention is rotating to the separation direction. FIG. 10 is a partial cross-sectional view showing another configuration of the tightening tool according to the present invention in a state where the tightening member is rotating in the separation direction. It is a fragmentary sectional view which shows the other structure of the fastener based on this invention. It is a fragmentary sectional view which shows the state which the fastening member of the fastening tool concerning this invention is rotating in the separation direction.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 2 Tightening member 12, 22 Protruding part 13, 23 Press part 3 Support body 4 Locking body 5 Pivot (Pivot part)
A Fastened material

Claims (3)

A fastening tool comprising two fastening members for fastening an object to be fastened, wherein at least one of the fastening members is pivotally supported by a support so as to be pivotable in a contact / separation direction. A projecting portion projecting in a direction opposite to the distal end portion from the supported base portion, and when the one tightening member is located at a rotation limit on the separation side, the projecting portion comes into contact with the object to be tightened A fastening tool, wherein a pressing portion for pressing is attached to the protruding portion .   The fastening tool according to claim 1, wherein the two fastening parts pivoting the two fastening members are separated in the contact / separation direction.   The fastener according to claim 1 or 2, wherein the pressing portion is held by the support so as to be movable.

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