JP2019090513A - Bolt connecting implement - Google Patents

Abstract

To provide a bolt connecting implement which can facilitate connecting work of a first bolt and a second bolt.SOLUTION: A bolt connecting implement (1) includes a first fastening member (20), a second fastening member (30), a connecting bolt (40), and an elastic member (50). By fastening of the connecting bolt (40), a first bolt is fastened and fixed between the first fastening member (20) and the other member, and the second bolt is fastened and fixed between the second fastening member (30) and the other member. The elastic member (50) is attached to the connecting bolt (40) so as to energize and approach the first fastening member (20) and the second fastening member (30) with each other in a loose fastening sate of the connecting bolt (40).SELECTED DRAWING: Figure 2

Description

  The present invention relates to a bolt connector for connecting two bolts.

  For example, a hanging device such as a cable rack or a duct may be hung from a structure such as a ceiling slab using a hanging bolt (an example of a first bolt). In such a case, in order to suppress the swinging motion of the lifting equipment caused by an earthquake or the like, a suspension bolt (an example of a second bolt) is disposed in a crossing posture from the lifting bolt to another lifting bolt adjacent thereto. They may be connected to one another and reinforced. In this case, a bolt connector for connecting two bolts is used.

  An example of such a bolt connection is disclosed, for example, in Japanese Patent Application Laid-Open No. 2002-339918 (Patent Document 1). The bolt connector of Patent Document 1 includes a narrow attachment body 1 for narrowly attaching a suspension bolt P, and a diagonal support 3 connected to the narrow attachment body 1 by a connection bolt 2. Then, the long bolt Q intersecting the suspension bolt P is tightened from both sides using the pair of fixing nuts 5 in a state of being inserted into the insertion hole 3B of the oblique support 3 bent into an L shape, and the oblique support It is fixed to 3.

  In the bolt connector of Patent Document 1, it is necessary to insert the long bolt Q into the insertion hole 3B of the oblique support 3 in order to fix the long bolt Q to the oblique support 3, for example, when the long bolt Q is long There are cases where such insertion operation is not easy. Further, since it is necessary to fasten the pair of fixing nuts 5 in order to fix the long bolt Q, much labor is required to connect the two bolts P and Q. Furthermore, since the loosening operation and tightening operation of the pair of fixing nuts 5 are also required to change the fixing position of the oblique support 3 to the long bolt Q, the two bolts P and Q are also connected from this point as well. It takes a lot of effort.

JP 2002-339918 A

  There is a need for a bolted connector that can easily perform the connecting operation of the first bolt and the second bolt.

The bolt connector according to the present invention is
A bolt connector for connecting a first bolt and a second bolt, wherein
A first narrowing member, a second narrowing member, a connection bolt, and an elastic member;
By fastening the connection bolt, the first bolt is fixedly fixed between the other member and the first narrowing member, and the second bolt is fixed between the other member and the second narrowing member. It is fixed tightly and
The elastic member is mounted on the connection bolt so as to bias the first narrowing member and the second narrowing member closer to each other in a loosely tightened state of the connection bolt.

  According to this configuration, the first bolt is fastened and fixed using the first narrowing member only by fastening one connection bolt, and the second bolt is fastened and fixed using the second narrowing member. be able to. The first narrowing member and the second narrowing member are rotatable about the connection bolt in a loosely tightened state before the connection bolt is tightened, so the first bolt and the second bolt intersect at various angles. It is also possible to cope with the case. Thus, the first bolt and the second bolt can be easily connected. Further, in a loosely tightened state before the connection bolt is tightened, the biasing force of the elastic member attached to the connection bolt can simultaneously temporarily fix the first bolt and the second bolt. For this reason, the worker does not have to firmly support the two bolts to be connected, and can concentrate on other operations. Therefore, also from this point, the first bolt and the second bolt can be easily connected.

  Hereinafter, preferred embodiments of the present invention will be described. However, the scope of the present invention is not limited by the preferred embodiments described below.

As one aspect,
The other member for clamping and fixing the first bolt between the first narrowing member and the other member for clamping and fixing the second bolt between the second narrowing member are plate members. A common base member made of
It is preferable that the first narrowing member and the second narrowing member are disposed on opposite surfaces of the base member.

  According to this configuration, the first narrowing member and the second narrowing member are disposed on both sides of the common base member, and the first bolt and the second bolt are narrowed respectively only by fastening one connection bolt. It can be fixed and the first bolt and the second bolt can be easily connected. At that time, the temporary fixing of the first bolt and the temporary fixing of the second bolt to the base member can be performed separately and stably by interposing the common base member therebetween. Furthermore, by using a member for narrowing and fixing the first bolt between the first narrowing member and a member for narrowing and fixing the second bolt between the second narrowing member. As compared with the case of using dedicated members, the number of parts can be reduced and cost reduction can be achieved.

As one aspect,
A base main body portion on which the first narrowing member and the second narrowing member are disposed; and a guide portion guiding the first bolt to a surface on which the first narrowing member is disposed. It is preferable to have.

  According to this configuration, the guide function of the guide portion of the base member can guide the first bolt to the disposition surface side of the first narrowing member in the base main body portion, and the first bolt can be easily tightened and fixed can do.

As one aspect,
The base member may further include a restricting portion that restricts the disposition posture of the first narrowing member such that the fixed portion of the first bolt in the first narrowing member faces the installation position of the guide portion. preferable.

  According to this configuration, the first bolt guided to the side of the base main body on which the first narrowing member is disposed can be received at the fixing portion of the first bolt in the first narrowing member. Therefore, the first bolt can be more easily tightened and fixed.

As one aspect,
It is preferable that the first narrowing member has a guide portion for guiding the first bolt to a fixed portion of the first bolt.

  According to this configuration, the first bolt can be easily guided between the base member and the fixing portion of the first narrowing member by the guiding function of the guide portion of the first narrowing member. Therefore, the first bolt can be easily tightened and fixed.

As one aspect,
The other member for clamping and fixing the first bolt between the first clamping member and the first clamping member is the second clamping member.
It is preferable that the said other member which carries out the narrow fixation of the said 2nd bolt between the said 2nd narrowing members is the said 1st narrowing member.

  According to this configuration, the first bolt can be tightly fixed and the second bolt can be tightly fixed by the first narrowing member and the second narrowing member. Therefore, it goes without saying that a special member for narrowing and fixing the first bolt between the first narrowing member and the second bolt between the second narrowing member is of course used. In addition, compared with the case where a common base member is used, the number of parts can be reduced and cost reduction can be achieved.

As one aspect,
The first narrowing member and the second narrowing member are formed in the same shape, and have an annular protrusion around the insertion hole of the connection bolt,
Inside the annular projection, there is provided a detent portion of a nut to be screwed to the connection bolt;
The nut can be prevented from rotating by the annular projection of one of the first narrowing member and the second narrowing member at the time of fastening operation of the connection bolt, and after the connection bolt is fastened, the first narrowing can be performed. It is preferable that the elastic member can be accommodated in the inner space of the other annular protrusion of the attachment member and the second narrow attachment member.

  According to this configuration, a mold for manufacturing the first narrowing member and the second narrowing member can be made common, and the manufacturing cost can be reduced. In addition, in one of the first narrowing member and the second narrowing member, the nut can be locked by the detent portion inside the annular protrusion, and the fastening operation of the connection bolt can be easily performed. In addition, in the other of the first narrowing member and the second narrowing member, the first bolt and the second bolt are fastened by the second connection bolt that is fastened by housing the elastic member in the inner space of the annular protrusion. And can be stably fixed.

  Further features and advantages of the present invention will become more apparent from the following description of exemplary and non-limiting embodiments, which will be described with reference to the drawings.

Front view of a suspension support structure using a bolt connector according to an embodiment Top view of bolt connector Perspective view of bolt connector Perspective view of bolt connector Exploded perspective view of the bolt connection The top view which shows one phase in the attachment operation of a bolt connector The top view which shows one phase in the attachment operation of a bolt connector Cross section of bolt connector Top view of an alternative bolt connector Top view of an alternative bolt connector The perspective view of the bolt connector of another mode

  Embodiments of bolt connectors will be described with reference to the drawings. The bolt connector 1 of the present embodiment is a device for connecting two bolts. In the present embodiment, a bolt connector 1 for connecting the suspension bolt P and the anti-vibration bolt Q will be described as an example. In the plan and cross-sectional views to be referred to in the following description, the first narrowing member 20 and the second narrowing member 30 are drawn so as to be in mutually opposite positional relationship in order to facilitate understanding. ing.

  FIG. 1 shows a support structure for suspending and supporting a hanging device E on a structure. The present supporting structure is formed by fixing a hanging bolt P, which is provided vertically from a structure, to a hanging device E. The structure may be, for example, a ceiling slab or a beam made of concrete, and the hanging device E may be, for example, a cable rack, a lighting device, or an indoor unit of an air conditioner.

  Between the hanging bolts P adjacent to each other, the anti-vibration bolts Q are disposed in a posture crossing them. The bolt connector 1 connects the suspension bolt P to a suspension bolt Q disposed adjacent to the suspension bolt P in a cross position. In the present embodiment, the suspension bolt P corresponds to a "first bolt", and the anti-vibration bolt Q corresponds to a "second bolt".

  As shown in FIGS. 2 to 5, the bolt connector 1 of the present embodiment includes the base member 10, the first narrowing member 20, the second narrowing member 30, the connection bolt 40, and the elastic member 50. Is equipped. The first narrowing member 20 is attached to the base member 10 by the connection bolt 40, and the second narrowing member 30 is attached to the base member 10. The first narrowing member 20 and the second narrowing member 30 are disposed on opposite surfaces of the base member 10. The first narrowing member 20 is disposed on the first surface 10a of the base member 10, and the second narrowing member 30 is disposed on the second surface 10b opposite to the first surface 10a of the base member 10 There is. The elastic member 50 is attached to the connection bolt 40.

  The base member 10 is a common base for attaching the first narrowing member 20 and the second narrowing member 30. The base member 10 of the present embodiment is made of, for example, a metal plate. The base member 10 has a base body 11 and a guide 16. The base body portion 11 is a portion that provides a fixing portion of the first narrowing member 20 and the second narrowing member 30. The base body 11 is formed in a disk shape. An insertion hole 12 through which the shaft 42 of the connection bolt 40 can be inserted is formed at the center of the base main body 11. Further, the base main body portion 11 is formed with an annular projection 13 which protrudes to one side in the thickness direction (the second surface 10 b side in this example) so as to surround the insertion hole 12. When the base member 10 has the annular projection 13, sticking between the base members 10 is less likely to occur even when plating of the base member 10 is performed by galvanization (barrel plating).

  Further, in the base main body portion 11, a restricting portion 14 is formed on the outer side of the annular projection 13 so as to project on the side opposite to the projecting direction of the annular projection 13 in the thickness direction (in the present example, the first surface 10a side). . The restricting portions 14 are provided in pairs so as to be located on opposite sides of the annular protrusion 13 in the diameter direction of the base main body portion 11. The pair of restricting portions 14 are formed as cuboid protrusions, and provided in parallel with each other in a state in which the longitudinal direction of the cuboid protrusions is orthogonal to the diameter direction of the base main body 11 There is. The distance between the pair of restricting portions 14 is set to be equal to the width of the first narrowing member 20. The pair of restricting portions 14 abuts the first narrowing member 20 from both sides, thereby restricting the disposition attitude of the first narrowing member 20 to a specific attitude. The restricting portion 14 also contributes to the prevention of sticking between the base members 10 during galvanization.

  The guide portion 16 is formed to project in the radial direction in a partial region of the circumferential direction of the base main body portion 11. The base body portion 11 and the guide portion 16 are integrally formed. The base main body portion 11 is formed in a flat shape as a whole (portions other than the annular projection 13 and the restricting portion 14), and the guide portion 16 is inclined with respect to the flat main body portion 11 as a whole. It is bent and formed. The inclination angle (the angle formed) between the base main body 11 and the guide 16 may be, for example, 120 ° to 150 °, and is set to about 135 ° in the present embodiment. The guide portion 16 serves to guide the suspension bolt P to be connected to the first surface 10 a which is the arrangement surface of the first narrowing member 20 in the base member 10.

  The guide portion 16 is provided in the middle of the installation position of the pair of restricting portions 14 in the circumferential direction of the base main body portion 11. The guide portion 16 is formed in a rectangular shape, and the length in the longitudinal direction of the rectangular guide portion 16 is set to a length substantially equal to or slightly smaller than the width of the first narrowing member 20. ing. Thereby, the guide portion 16 is a curved portion 26 of the first narrowing member 20 (which is a fixing portion of the suspension bolt P in the first narrowing member 20) whose posture is held by the pair of restriction portions 14 It is provided along the way. Conversely, the restricting portion 14 described above restricts the disposition attitude of the first narrowing member 20 so that the curved portion 26 of the first narrowing member 20 faces the installation position of the guide portion 16.

  The first narrowing member 20 is a member for narrowing and fixing the suspension bolt P between the first narrowing member 20 and the other base member 10. The first narrowing member 20 is made of, for example, a metal plate. The first narrowing member 20 has a narrowing main body portion 21, a curved portion 26 and a rib portion 29. The narrowing attachment main body portion 21 is a portion that is superimposed on the base member 10 and becomes a fixing portion to the base member 10. The narrowing main body portion 21 is formed in a D shape in which a rectangular area and a semicircular area are combined. An insertion hole 22 through which the shaft 42 of the connection bolt 40 can be inserted is formed at the center of the narrowing body 21. Further, an annular protrusion 13 is formed in the narrowing attachment main portion 21 so as to surround the insertion hole 22. The annular projection 13 is formed to project toward the opposite side to the base member 10.

  On the inside of the annular projection 23, a rotation prevention portion 24 of a nut 45 screwed to the connection bolt 40 is provided. In the present embodiment, the annular protrusion 23 itself is formed in an annular shape, and on the inner side thereof, a polygonal (hexagonal in this example) recess corresponding to the outer shape of the nut 45 is formed. The rotation preventing portion 24 is configured by the polygonal recess. By having such a locking portion 24 on the annular projection 23, it is possible to prevent the nut 45 from rotating together when the connection bolt 40 is tightened.

  The curved portion 26 extends from the rectangular area of the D-shaped narrowing main body 21 to the opposite side to the semicircular area. The narrowing attachment body portion 21 and the bending portion 26 are integrally formed. In the present embodiment, the curved portion 26 is formed as a curved plate portion having a circular arc shape having a central angle of about 180 ° in a plan view shape. The curved portion 26 is curved so as to generally follow the outer surface of the lifting bolt P. The curved part 26 is a part which actually fixes the said suspension bolt P in the state which encloses the suspension bolt P, and is corresponded to "the fixation site | part of the 1st bolt in a 1st narrowing member."

  On the inner surface of the curved portion 26, a locking protrusion 27 locked to the screw portion of the suspension bolt P is formed to protrude. A plurality of locking projections 27 are provided in a distributed manner so that the suspension bolt P can be locked at a plurality of locations in the axial direction. By having such a locking projection 27, positional displacement of the bolt connector 1 with respect to the suspension bolt P can be suppressed.

  The rib portion 29 is integrally formed on at least a portion of the narrowing main body portion 21 and at least a portion of the curved portion 26 on both sides in the width direction of the first narrowing member 20. In the present embodiment, the rib portion 29 is formed over a portion of the narrowing main body portion 21 and the entire curved portion 26. The rib portion 29 intersects (in this example, is orthogonal to) the plate surface of the narrowing attachment main portion 21 and the bending portion 26. By providing such a rib portion 29, the strength of the first narrowing member 20 is improved.

  The corner of the distal end side of the curved portion 26 in the rib 29 is formed in a rounded R shape in a plan view, not in a pointed shape with sharp corners. The R-shaped corner of the rib 29 serves to guide the suspension bolt P to the curved portion 26 (which is a fixing portion of the suspension bolt P in the first narrowing member 20). That is, the R-shaped corner portion of the rib portion 29 constitutes a guide portion 29A of the first narrowing member 20 for guiding the suspension bolt P to the curved portion 26.

  The second narrowing member 30 is a member for narrowing and fixing the anti-vibration bolt Q between itself and the base member 10 which is another member. Similar to the first narrowing member 20, the second narrowing member 30 is made of, for example, a metal plate. In the present embodiment, the second narrowing member 30 is formed in the same shape as the first narrowing member 20. The second narrowing member 30 has a narrowing body 31, a curved portion 36 and a rib 39. These are integrally formed.

  An insertion hole 32 and an annular protrusion 33 are formed in the D-shaped narrow attachment main body portion 31. On the inner side of the annular protrusion 33, a polygonal (hexagonal in this example) recess is formed. On the inner surface of the curved portion 36 curved so as to generally follow the outer surface of the anti-vibration bolt Q, a locking projection 37 which is locked to the screw portion of the anti-lock bolt Q is formed to protrude. The corner on the tip end side of the curved portion 36 in the rib 29 formed over a part of the narrowing main body 31 and the whole of the curved portion 36 is formed in an R shape, and the corner having the R shape The guide portion 39A of the second narrowing member 30 is configured. The guide portion 39A functions to guide the anti-vibration bolt Q to the curved portion 36 (which is a fixing portion of the anti-rotation bolt Q in the second narrowing member 30).

  The connecting bolt 40 cooperates with the screwed nut 45 to connect the base member 10, the first narrowing member 20 and the second narrowing member 30. The connection bolt 40 cooperates with the nut 45 in a state in which the base member 10 is sandwiched between the first narrowing member 20 and the second narrowing member 30 to integrally connect them. In the connecting bolt 40, from the second narrowing member 30 side, the shaft portion 42 sequentially passes through the insertion hole 32 of the second narrowing member 30, the insertion hole 12 of the base member 10, and the insertion hole 22 of the first narrowing member 20. It penetrates and is screwed into the nut 45 at the first narrowing member 20 side. Then, when the connection bolt 40 and the nut 45 are fastened, the base member 10, the first narrowing member 20, and the second between the head 41 of the connection bolt 40 and the nut 45 via the washer 43. The narrowing member 30 is connected and fixed. The washer 43 has a diameter larger than that of the annular protrusion 33 of the second narrowing member 30.

  As described above, the first narrowing member 20 narrows and fixes the suspension bolt P between itself and the base member 10, and the second narrowing member 30 narrows the anti-vibration bolt Q between itself and the base member 10. Fix it. That is, the bolt connector 1 of the present embodiment clamps and fixes the suspension bolt P between the base member 10 and the first narrowing member 20 by fastening the connection bolt 40 while using the common base member 10. At the same time, the anti-vibration bolt Q is tightly fixed between the base member 10 and the second narrowing member 30.

  In the bolt connector 1 of the present embodiment, the elastic member 50 is attached to the connection bolt 40. As the elastic member 50, a coiled spring is used, and more specifically, a conical coiled spring whose coil diameter gradually changes according to the position in the axial direction is used. The elastic member 50 is attached to the shaft portion 42 of the connection bolt 40 on the side opposite to the base member 10 and the first narrowing member 20 with respect to the second narrowing member 30. The elastic member 50 is attached to the connection bolt 40 with the washer 43 interposed between the second narrowing member 30 and the head 41 of the connection bolt 40 on the side of the head 41 of the connection bolt 40. Further, the elastic member 50 is attached to the connection bolt 40 in a compressed state as compared to a steady state (a state in which no external force is applied).

  The elastic member 50 in a compressed state attached to the connection bolt 40 biases the first narrowing member 20 and the second narrowing member 30 close to each other when the connection bolt 40 is loosely tightened. That is, the elastic member 50 presses the second narrowing member 30 via the base member 10 with respect to the first narrowing member 20 supported from the rear side by the nut 45 in a loosely tightened state of the connection bolt 40. By urging, the first narrowing member 20 and the second narrowing member 30 are brought close to each other. Note that the “relaxation state of the connection bolt 40” is a state in which the nut 45 is screwed into the shaft portion 42 of the connection bolt 40 and is not completely fastened. The second narrowing member 30 in a state in which the base member 10 is pressed and biased to the first narrowing member 20 in a state in which the suspension bolt P is accommodated in the curved portion 26 and the anti-vibration bolt Q is accommodated in the curved portion 36. By pressing and biasing the base member 10, the suspension bolt P and the anti-vibration bolt Q can be temporarily fixed at the same time.

  In the bolt connector 1 of the present embodiment, all of the base member 10, the first narrowing member 20, the second narrowing member 30, the connection bolt 40, and the elastic member 50 are temporarily assembled (temporarily assembled) It can be constructed. In the temporary assembly state of the bolt connector 1, the connection bolt 40 to which the washer 53 and the elastic member 50 are attached is loosened through the base member 10, the first narrowing member 20, and the second narrowing member 30. It is in a state of being in a tightened state. In the temporary assembly state of the bolt connector 1, the second narrowing member 30 with respect to the base member 10 and the first narrowing member 20 held in posture with the shaft portion 42 of the connection bolt 40 as an axis, It is rotatably connected within a range that does not interfere with the guide portion 16 of the base member 10. As described above, if the size of the guide portion 16 is about the same as or less than the width of the first narrowing member 20, the movable range of the second narrowing member 30 (ie, the corresponding stop bolt Q A large installation angle range can be secured, which is preferable.

  The bolt connector 1 is attached to the suspension bolt P while the bolt connector 1 is temporarily assembled. As shown in FIG. 6, the V-shaped receiving portion formed in cooperation with the guide portion 16 of the base member 10 and the guide portion 29A of the first narrowing member 20 is a V-shaped receiving portion with respect to the suspension bolt P. Apply in the radial direction of the suspension bolt P. When the bolt connector 1 is pressed as it is to the suspension bolt P side, the suspension bolt P is guided to the first surface 10 a of the base member 10 by the guide portion 16 of the base member 10 and the guide of the first narrowing member 20 The portion 29A enters between the base member 10 and the first narrowing member 20. Then, the first narrowing member 20 is pushed and spread by the suspension bolt P against the base member 10 against the elastic biasing force of the elastic member 50.

  When the bolt connector 1 is further pushed in, the first narrowing member 20 naturally surrounds the suspension bolt P by the curved portion 26. In this state, the elastic restoring force of the elastic member 50 causes the first narrowing member 20 and The suspension bolt P is temporarily fixed between the base member 10 and the base member 10. Thus, the guide members 16 and 29A of the base member 10 and the first narrowing member 20 cooperate to easily guide the suspension bolt P between the base member 10 and the curved portion 26 of the first narrowing member 20. be able to. That is, the suspension bolt P guided to the first surface 10 a side of the base member 10 along the guide portion 16 can be easily guided to the curved portion 26 of the first narrowing member 20 as it is. Therefore, the suspension bolt P can be temporarily fixed easily.

  Thereafter, rough angle adjustment of the second narrowing member 30 is performed according to the installation angle of the anti-vibration bolt Q, and then the anti-rotation bolt Q is attached to the bolt connector 1. As shown in FIG. 7, in the V-shaped receiving portion in plan view formed between the end edge of the base member 10 and the guide portion 39A of the second narrowing member 30, the anti-vibration bolt Q is used as the anti-rotation bolt Apply in the radial direction of Q. When the anti-vibration bolt Q is pushed in as it is, the anti-rotation bolt Q enters between the base member 10 and the second narrowing member 30 by the guide portion 39A of the second narrowing member 30. Then, the second narrowing member 30 is pushed and spread by the anti-vibration bolt Q against the base member 10 against the elastic biasing force of the elastic member 50. At this time, the first narrowing member 20 remains closed with respect to the base member 10, and the temporarily fixed state of the suspension bolt P is appropriately maintained.

  When the detent bolt Q is further pushed in, the second narrowing member 30 naturally encloses the detent bolt Q at the curved portion 36, and in this state, the second narrowing member 30 is moved by the elastic restoring force of the elastic member 50. The anti-vibration bolt Q is temporarily fixed between the and the base member 10. Thus, the anti-vibration bolt Q can be easily guided between the base member 10 and the curved portion 36 of the second narrowing member 30 by the guide portion 39A of the second narrowing member 30. Therefore, the anti-vibration bolt Q can be temporarily fixed easily.

  After temporarily fixing the suspension bolt P and the anti-vibration bolt Q simultaneously, the operator can perform the fastening operation of the connection bolt 40 in a state where both hands can be freely used. Therefore, the connection operation of the suspension bolt P and the anti-vibration bolt Q can be easily performed. At this time, the elastic member 50 in the compressed state biases the first narrowing member 20 to the nut 45 side via the second narrowing member 30 and the base member 10, and the nut 45 becomes the first narrowing member 20. It locks to the detent 24 formed on the annular projection 23. For this reason, at the time of the fastening operation of the connection bolt 40, the turning of the nut 45 can be automatically prevented, and the connecting operation of the suspension bolt P and the anti-vibration bolt Q can be performed more easily.

  When the connecting bolt 40 is tightened up and completely tightened, as shown in FIG. 8, the washer 53, the second narrowing member 30, the base member 10, and the second tightening member 30 are interposed between the shaft 42 and the nut 45 of the connecting bolt 40. The narrowing attachment member 20 is in a tightened state. At this time, in the present embodiment, the annular protrusion 13 of the base member 10 is configured to be accommodated in the recess on the back side of the annular protrusion 33 of the second narrowing member 30. For this reason, the base main body 11 of the base member 10 and the narrowing main body 31 of the second narrowing member 30 are in surface contact with each other in a wide range. Q can be stably fixed in place.

  Furthermore, the washer 43 is formed larger in diameter than the annular projection 33 of the second narrowing member 30, and in a state where the washer 43 is supported in contact with the annular projection 33, the shaft of the connecting bolt 40 is interposed between them. An annular space A surrounding the portion 42 is formed. The annular space A is a flat space which is formed inside the annular protrusion 33 of the second narrowing member 30 and has a thickness corresponding to the height of the protrusion of the annular protrusion 33 from the narrowing main body 31. And in this annular space A, the elastic member 50 which consists of a conical coil spring which becomes flat shape of spiral shape at the time of high compression is stored. The annular space A functions as an elastic member accommodation space. As described above, by accommodating the elastic member 50 in the inner space of the annular projection 33 of the second narrowing member 30 after fastening the connection bolt 40, the influence of the elastic member 50 after fastening the connection bolt 40 is eliminated. The suspension bolt P and the anti-vibration bolt Q can be stably fixed.

  In addition, the first narrowing member 20 and the second narrowing member 30 are formed in the same shape, and the polygonal concave portion on the inner side of the annular protrusions 23 and 33 prevents rotation of the nut 45 on the first narrowing member 20 side. The second narrowing member 30 side is used to store the elastic member 50. Therefore, while making it possible to simplify the connection operation between the suspension bolt P and the anti-vibration bolt Q while reducing the manufacturing cost by sharing parts, it is possible to stably fix them.

Other Embodiments
(1) In the above embodiment, the curved portion 26 of the first narrowing member 20 and the curved portion 36 of the second narrowing member 30 are each formed in an arc shape having a central angle of about 180 ° in plan view. The configuration described above has been described as an example. However, without being limited to such a configuration, for example, as shown in FIG. 9, the central angle of the curved portion 26 of the first narrowing member 20 may be another angle such as, for example, approximately 90 °. . In this case, the curved portion 18 may be provided also on the base member 10, and the suspension bolt P may be fixed between the curved portion 18 of the base member 10 and the curved portion 26 of the first narrowing member 20. In addition, the fixing portion of the suspension bolt P may be configured by a rectangular parallelepiped portion surrounding the outer periphery of the suspension bolt P. The same can be considered regarding the configuration of the second narrowing member 30 side.

(2) In the above embodiment, the configuration in which the base member 10 has the regulating portion 14 formed of a rectangular parallelepiped protrusion has been described as an example. However, without being limited to such a configuration, for example, the restricting portion 14 may be configured by a linear protrusion or a point-like protrusion or the like arranged in a linear shape. Alternatively, the base member 10 may not have the restricting portion 14.

(3) In the above embodiment, the configuration in which the base member 10 has the guide portion 16 formed of a rectangular plate has been described as an example. However, without being limited to such a configuration, for example, the guide portion 16 may be configured by a plate having a different shape, or may be configured by a plurality of linear bodies. Alternatively, the base member 10 may not have the guide portion 16.

(4) In the above embodiment, the first narrowing member 20 and the second narrowing member 30 are described as an example having the guide portions 29A and 39A formed of the R-shaped corner portions of the rib portions 29 and 39, respectively. did. However, without being limited to such a configuration, for example, at least one of the guide portions 29A and 39A may be configured by a plate or a linear body formed by bending from the end of the curved portions 26 and 36. . Alternatively, at least one of the first narrowing member 20 and the second narrowing member 30 may not have the guide portions 29A and 39A.

(5) In the above embodiment, the configuration in which the first narrowing member 20 and the second narrowing member 30 are formed in the same shape has been described as an example. However, the first narrowing member 20 and the second narrowing member 30 may be formed in different shapes without being limited to such a configuration. In this case, for example, the first narrowing member 20 is not provided with the annular protrusion 23, and the detent portion 24 formed of a linear protrusion or a point-like protrusion is provided, and the second narrowing member 30 includes the elastic member 50. An annular projection 33 may be provided which can be accommodated but does not have a locking function. Further, instead of using the nut 45 to fasten the connection bolt 40, a burring tap may be set on the first narrowing member 20 or the second narrowing member 30.

(6) In the above embodiment, the configuration in which the first narrowing member 20 and the second narrowing member 30 share one base member 10 has been described as an example. However, without being limited to such a configuration, for example, dedicated base members may be provided to the first narrowing member 20 and the second narrowing member 30, respectively. That is, by fastening the connecting bolt 40, the hanging bolt P is fixed between the first base member and the first narrowing member 20, and the second base member and the second base member are formed separately from the first base member. The anti-vibration bolt Q may be tightly fixed between the second narrowing member 30.

(7) In the above embodiment, the connection bolt 40 passes through the second narrowing member 30, the base member 10, and the first narrowing member 20 in order from the second narrowing member 30 side, and the first narrowing member 20 The configuration in which the nut 45 is screwed on the side has been described as an example. However, without being limited to such a configuration, the connecting bolt 40 sequentially penetrates the first narrowing member 20, the base member 10, and the second narrowing member 30 from the first narrowing member 20 side, The nut 45 may be screwed on the side of the narrowing member 30. In this case, the polygonal concave portion on the inner side of the annular projections 23 and 33 is used to prevent rotation of the nut 45 on the second narrowing member 30 side, and the elastic member 50 is accommodated on the first narrowing member 20 side. Used for

(8) In the above embodiment, the configuration in which the bolt connector 1 includes the base member 10 has been described as an example. However, without being limited to such a configuration, for example, as shown in FIG. 10, the bolt connector 1 does not include the base member 10, and the first narrowing member 20, the second narrowing member 30, and the connection bolt 40. , And the elastic member 50 alone. In this case, the first narrowing member 20 narrows and fixes the suspension bolt P between the second narrowing member 30 and the narrowing main body portion 31, and the second narrowing member 30 is the first narrowing member 20. The anti-vibration bolt Q is tightly fixed between the narrowly fitting main body portion 21 of FIG. In this case, the second narrowing member 30 corresponds to the "other member" in relation to the first narrowing member 20, and the first narrowing member 20 corresponds to the "other member in relation to the second narrowing member 30. Equivalent to In such a configuration, the number of parts can be reduced to achieve cost reduction.

(9) The specific shapes of the parts constituting the bolt connector 1 described in the above embodiment are merely examples, and the present invention is not limited to such configurations. For example, as shown in FIG. 11, while the base member 10 is formed of a bending plate having a ceiling portion 11A and a pair of side wall portions 11B, the first narrowing member 20 includes a ceiling portion 21A and a pair of side wall portions 21B. It may be constituted by a bending plate which has it, and these may be connected openably and closably in the posture which faces each other. In such a configuration, the notches 19 are formed in the pair of side walls 11B and the notches 28 are formed in the pair of side walls 21B, and the suspension bolt P is accommodated in the notches 19 and 28. The hanging bolt P may be fixed in place. In this case, the notch 28 formed in the side wall 21B corresponds to "a fixing portion of the first bolt in the first narrowing member".

(10) In the above embodiment, the configuration in which the bolt connector 1 connects the suspension bolt P and the anti-vibration bolt Q has been described as an example. However, without being limited to such a configuration, for example, in the case where two detent bolts Q are disposed so as to intersect with each other and with the suspension bolt P between the suspension bolts P adjacent to each other. The bolt connector 1 may be used to connect the two stop bolts Q with each other. In this case, one of the two anti-vibration bolts Q corresponds to the "first bolt", and the other corresponds to the "second bolt". Further, in order to connect three or more bolts, the bolt connecting device 1 of this embodiment may be partially modified and used.

(11) The configurations disclosed in the above-described embodiments (including the above-described embodiment and the other embodiments; the same applies hereinafter) are applied in combination with the configurations disclosed in the other embodiments, as long as no contradiction arises. It is also possible. With regard to other configurations, the embodiment disclosed in the present specification is illustrative in all respects, and can be appropriately modified within the scope of the present disclosure.

DESCRIPTION OF SYMBOLS 1 bolt connection tool 10 base member 11 base main-body part 14 regulation part 16 guide part 20 1st narrowing attachment member 22 insertion hole 23 annular protrusion 24 rotation prevention part 26 curved part (fixed part)
28 Notched part (fixed part)
29A guide portion 30 second narrowing member 32 insertion hole 33 annular projection 40 connection bolt 45 nut 50 elastic member P suspension bolt (first bolt)
Q Stop bolt (2nd bolt)
A annular space

Claims (7)

A bolt connector for connecting a first bolt and a second bolt, wherein
A first narrowing member, a second narrowing member, a connection bolt, and an elastic member;
By fastening the connection bolt, the first bolt is fixedly fixed between the other member and the first narrowing member, and the second bolt is fixed between the other member and the second narrowing member. It is fixed tightly and
The bolt connector mounted on the connection bolt so that the elastic member biases the first narrowing member and the second narrowing member closer to each other in a loosely tightened state of the connection bolt. The other member for clamping and fixing the first bolt between the first narrowing member and the other member for clamping and fixing the second bolt between the second narrowing member are plate members. A common base member made of
The bolt connector according to claim 1, wherein the first narrowing member and the second narrowing member are disposed on opposite surfaces of the base member.   A base main body portion on which the first narrowing member and the second narrowing member are disposed; and a guide portion guiding the first bolt to a surface on which the first narrowing member is disposed. The bolted connector according to claim 2, comprising:   The base member further includes a restricting portion that restricts the disposition attitude of the first narrowing member such that the fixed portion of the first bolt in the first narrowing member faces the installation position of the guide portion. The bolt connector according to 3.   The bolt connection according to any one of claims 1 to 4 in which said 1st narrowing member has a guide part which guides said 1st bolt to a fixed part of said 1st bolt. The other member for clamping and fixing the first bolt between the first clamping member and the first clamping member is the second clamping member.
The bolt connector according to claim 1, wherein the other member for fixing the second bolt between the second narrowing member and the second narrowing member is the first narrowing member. The first narrowing member and the second narrowing member are formed in the same shape, and have an annular protrusion around the insertion hole of the connection bolt,
Inside the annular projection, there is provided a detent portion of a nut to be screwed to the connection bolt;
The nut can be prevented from rotating by the annular projection of one of the first narrowing member and the second narrowing member at the time of fastening operation of the connection bolt, and after the connection bolt is fastened, the first narrowing can be performed. The bolt connector according to any one of claims 1 to 6, wherein the elastic member can be accommodated in the inner space of the other annular protrusion of the attachment member and the second narrowing member.

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