JP5909107B2 - Bolt connection - Google Patents

Description

  The present invention relates to a bolted connection for supporting a facility device from the ceiling.

  Various types of equipment are installed in buildings such as condominiums and buildings, and they are supported in a suspended state from the ceiling or ceiling frame depending on their use and installation conditions (hereinafter referred to as “Ceiling Support”). There are many equipment that can be called. Examples of the equipment supported by the ceiling include indoor units of air conditioning equipment, lighting equipment, ducts, piping, and the like.

  In general, as a bolt coupling body for supporting the equipment on the ceiling, a ceiling-side bolt (corresponding to the “first suspension bolt” in the claims) fixed to the ceiling or ceiling housing side and projecting downward is provided. A unit having a structure in which a bolt on the equipment side (corresponding to a “second suspension bolt” in the claims) fixed to the equipment side and projecting upward is connected by a connecting member is known.

FIG. 12 is an explanatory diagram of a connection fitting 115 (connection member) according to a conventional bolt connection body 110.
For example, as shown in FIG. 12, two bolts 111 and 112 are inserted as connecting fittings 115 for connecting the two bolts 111 and 112, and the threads 111a and 112a of the bolts 111 and 112 are engaged ( The peripheral wall 117 maintained in a meshed state, the opening 119 into which the bolts 111 and 112 can be inserted from the side, the closing portion 120 plastically deformed to close the opening 119, and the inserted bolts 111. , 112 has been proposed (see, for example, Patent Document 1).

  Two bolts 111 and 112 are arranged in parallel in the connecting metal fitting 115 in an adjacent state. After the two bolts 111 and 112 are inserted and arranged in the connection fitting 115, the closing portion 120 of the connection fitting 115 is plastically deformed with a tool such as pliers and the opening 119 is closed to thereby close the bolts 111 and 112. The screw threads 111a and 112a of 112 are connected and fixed by the peripheral wall 117 in a state where they are engaged with each other.

  According to Patent Document 1, since the opening 119 that can be inserted into the peripheral wall 117 from the side of each bolt 111, 112 is provided, it is not necessary to insert the connecting metal 115 from the end of each bolt 111, 112. Since the bolts 111 and 112 can be directly attached to the side of the bolts 111 and 112, the work can be speeded up.

JP 2006-329358 A

However, in the above prior art, the bolt coupling body is coupled by the coupling member in a state where the two bolts are arranged in parallel. For this reason, the area | region of the thread which can mutually engage in two bolts is limited to a part of outer peripheral surface which a mutual bolt contact | abuts. Therefore, the contact area of the threads that engage with each other becomes very small, and sufficient connection strength cannot be ensured, and there is a possibility that the equipment can not be stably suspended from the ceiling.
In addition, when the connecting member and the two bolts are connected to form the bolt connecting body, the connecting member is fixed to the two bolts using a tool such as pliers, and therefore the work may be complicated. There is.

  Accordingly, an object of the present invention is to provide a bolted connection body that can sufficiently secure the connection strength, can stably support the equipment on the ceiling, and has good workability.

In order to solve the above-described problems, the bolt connection body of the present invention is configured such that the upper end portion is screwed to a fixture provided on the ceiling casing and the lower end portion is connected to the equipment, so that the facility A bolt coupling body for supporting the device from the ceiling, the first suspension bolt being located on the ceiling housing side, the upper end portion being screwed to the fixture, the lower end portion being located on the facility equipment side In a state where the second suspension bolt connected to the equipment, the first suspension bolt and the second suspension bolt are coaxially matched, the lower end of the first suspension bolt and the upper end of the second suspension bolt A coupling member that couples the parts to each other, and the coupling member is provided in the plurality of divided bodies that are detachably coupled to each other, and with the coupling of the divided bodies, Radial to the first suspension bolt and the second suspension bolt Comprising a plurality of meshing body meshing from outside, wherein the engagement member is a bolt for engagement with a threaded capable of meshing threads of the first hanger rod and the second hanger bolts, said plurality of The divided body is characterized by including a recess in which the meshing bolt can be disposed .

According to the present invention, since the plurality of meshing bodies that mesh with the first suspension bolt and the second suspension bolt from the outside in the radial direction are provided along with the coupling of the divided bodies, It is possible to secure a sufficiently large contact area between the first suspension bolt and the second suspension bolt and the meshing body. Thereby, since the connection strength of a 1st suspending bolt and the 2nd suspending bolt, and a connection member can fully be ensured, an installation apparatus can be stably supported on a ceiling.
In addition, the connecting member is configured such that the coupling body, the first suspension bolt, and the second suspension bolt are meshed and coupled by coupling a plurality of divided bodies, so that the first suspension bolt and The second suspension bolt and the connecting member can be connected. Therefore, good workability can be secured when the equipment is supported on the ceiling.
Further, since the plurality of meshing bodies mesh with the first suspension bolt and the second suspension bolt from the outside in the radial direction, the central axes of the first suspension bolt and the second suspension bolt (hereinafter referred to as “bolt shaft”). The first suspension bolt and the second suspension bolt can be arranged so that the distances from the plurality of meshing bodies are equal. As a result, the connecting member can be connected in a state in which the displacement of the bolt shaft of the first suspension bolt and the second suspension bolt, which is the load core of the facility device supported by the ceiling, is suppressed. Can be suspended from the ceiling. Furthermore, the first suspension bolt and the second suspension bolt are arranged on the same straight line when viewed from the outside. Therefore, compared with the prior art in which two bolts are arranged in parallel and arranged on different straight lines when viewed from the outside, excellent design can be ensured.

  According to the present invention, since the engagement body can be formed using a commercially available bolt, the bolt connection body can be provided at low cost. Moreover, since the meshing body formed by the bolt has a thread that can mesh with the thread of the first suspension bolt and the second suspension bolt, the meshing body and the first suspension bolt and the second suspension bolt are It can be securely engaged and firmly connected.

  Further, the length of the bolt for engagement is shorter than the length of the divided body.

  In addition, the plurality of divided bodies are rotatably connected, and are formed so as to be coupled and separable from each other by a rotating operation, and include a lock mechanism capable of holding and releasing the combined state of the plurality of divided bodies. It is characterized by being.

  According to the present invention, since the plurality of divided bodies can be coupled and separated from each other only by a rotation operation, the plurality of divided bodies can be easily coupled and separated. Moreover, since the lock mechanism which can hold | maintain and cancel | release the combined state of a several division body is provided, the combined state of a some division body can be hold | maintained and cancelled | released, without using a tool etc. In particular, for example, by forming the lock mechanism with the engaging claw portion and the engaged portion, the combined state of the plurality of divided bodies can be held and released with one touch by so-called snap fit. Therefore, good workability can be ensured when the equipment is supported on the ceiling or during maintenance.

According to the present invention, since the plurality of meshing bodies that mesh with the first suspension bolt and the second suspension bolt from the outside in the radial direction are provided along with the coupling of the divided bodies, It is possible to secure a sufficiently large contact area between the first suspension bolt and the second suspension bolt and the meshing body. Thereby, since the connection strength of a 1st suspending bolt and the 2nd suspending bolt, and a connection member can fully be ensured, an installation apparatus can be stably supported on a ceiling.
In addition, the connecting member is configured such that the coupling body, the first suspension bolt, and the second suspension bolt are meshed and coupled by coupling a plurality of divided bodies, so that the first suspension bolt and The second suspension bolt and the connecting member can be connected. Therefore, good workability can be secured when the equipment is supported on the ceiling.
Further, since the plurality of meshing bodies mesh with the first suspension bolt and the second suspension bolt from the outside in the radial direction, the central axes of the first suspension bolt and the second suspension bolt (hereinafter referred to as “bolt shaft”). The first suspension bolt and the second suspension bolt can be arranged so that the distances from the plurality of meshing bodies are equal. As a result, the connecting member can be connected in a state in which the displacement of the bolt shaft of the first suspension bolt and the second suspension bolt, which is the load core of the facility device supported by the ceiling, is suppressed. Can be suspended from the ceiling. Furthermore, the first suspension bolt and the second suspension bolt are arranged on the same straight line when viewed from the outside. Therefore, compared with the prior art in which two bolts are arranged in parallel and arranged on different straight lines when viewed from the outside, excellent design can be ensured.

It is a whole perspective view of the bolt coupling object of a first embodiment. It is explanatory drawing of a bolt coupling body when it sees from a 1st direction. It is explanatory drawing of a bolt coupling body when it sees from a 2nd direction. It is sectional drawing along the AA line of FIG. It is explanatory drawing before couple | bonding a pair of division body mutually. It is explanatory drawing at the time of a connection with a 1st suspending bolt and a 2nd suspending bolt, and a connection member. It is explanatory drawing of the connection member which concerns on the 1st modification of 1st embodiment when it sees from upper direction. It is explanatory drawing of the connection member which concerns on the 2nd modification of 1st embodiment when it sees from upper direction. It is explanatory drawing of the connection member which concerns on a reference form when it sees from a 2nd direction. It is explanatory drawing in the state before mounting | wearing of the connection member which concerns on a reference form when it sees from a side. It is explanatory drawing in the state before mounting | wearing of the connection member which concerns on a reference form when it sees from upper direction. It is explanatory drawing of the connection member which concerns on the bolt connection body of a prior art.

(First embodiment)
Hereinafter, the bolt coupling body of 1st embodiment which concerns on this invention is demonstrated with reference to drawings.
FIG. 1 is an overall perspective view of the bolt connector 30 of the first embodiment.
As shown in FIG. 1, the bolt coupling body 30 of the present embodiment is a unit for supporting the equipment W in a ceiling (suspension support), and is embedded in a ceiling frame F (for example, a ceiling concrete structure). The first suspension bolt 31 with the upper end portion 31a screwed to the insert fixture 2 and the equipment device W side, and the lower end portion 32b are connected to the equipment device W via the damper unit 10 and the bracket 4. A second suspension bolt 32, and a connecting member 40 that couples the lower end portion 31b of the first suspension bolt 31 and the upper end portion 32a of the second suspension bolt 32 to each other. In the present embodiment, the ceiling support body 1 that supports the equipment device W from the ceiling is constituted by the four bolt coupling bodies 30.

In the present embodiment, the bolt connector 30 is suspended from the ceiling housing F in the vertical direction. And the axis | shaft which penetrates the center of the bolt coupling body 30 is called the bolt axis | shaft O, the direction which goes to the ceiling housing F side from the bracket 4 side along this bolt axis | shaft O is called an upper side, and the reverse direction is called lower side. A direction perpendicular to the bolt axis O is referred to as a radial direction. Furthermore, among the radial directions, the direction in which the bolt coupling bodies 30 are arranged with the equipment device W interposed therebetween is referred to as a first direction L1, and among the radial directions, a direction orthogonal to the first direction L1 is referred to as a second direction L2. .
Moreover, the facility equipment W is not particularly limited, and examples thereof include an indoor unit of an air conditioner.

FIG. 2 is an explanatory diagram of the bolt connector 30 when viewed from the first direction L1.
FIG. 3 is an explanatory diagram of the bolt connector 30 when viewed from the second direction L2.
In FIGS. 2 and 3, the ceiling frame F, the insert fixture 2, and the equipment W are illustrated by two-dot chain lines.
As shown in FIG. 2, the first suspension bolt 31 is a bolt having a predetermined diameter and length. The upper end portion 31 a of the first suspension bolt 31 is suspended from the ceiling casing F by being screwed to the insert fixture 2.
Moreover, the lower end part 31b of the 1st suspension bolt 31 is connected with a pair of meshing bodies 50a and 50b provided in the connection member 40 mentioned later.

The second suspension bolt 32 is a bolt having a predetermined length and substantially the same diameter as the first suspension bolt 31. The upper end portion 32 a of the second suspension bolt 32 is connected to a pair of meshing bodies 50 a and 50 b provided on the connecting member 40.
Further, the lower end portion 32 b of the second suspension bolt 32 is coupled to the damper unit 10 by screwing a fixing nut 63. Furthermore, the damper unit 10 is connected to a bracket 4 fixed to the equipment device W. That is, the second suspension bolt 32 of the bolt coupling body 30 is coupled to the equipment device W via the damper unit 10 and the bracket 4.

The damper unit 10 is mainly configured by a main body metal 11, a coil spring 12, and a flat plate washer 13, and elastically supports the equipment device W with respect to the bolt coupling body 30.
The main body 11 is formed in a substantially U shape having an opening in the second direction L2 when viewed from the first direction L1, and includes an upper wall portion 11a and a lower wall portion 11b facing each other in the vertical direction, and an upper wall portion 11a. And a main body wall portion 11c for connecting the lower wall portion 11b.

  A through hole 11d penetrating in the vertical direction is formed in the upper wall portion 11a of the main body metal 11, and the lower end portion 32b of the second suspension bolt 32 is inserted therethrough. Further, between the upper wall portion 11a and the fixing nut 63 screwed to the lower end portion 32b of the second suspension bolt 32, the coil spring 12 and the flat plate washer 13 are provided in order from the upper side to the lower side. Yes.

The coil spring 12 is supported between the upper wall portion 11a and the fixing nut 63 with the upper end in contact with the upper wall portion 11a and the lower end in contact with the flat plate washer 13. Thus, the coil spring 12 biases the upper wall portion 11a and the fixing nut 63.
Further, a through hole 11e penetrating in the vertical direction is formed in the lower wall portion 11b of the main body metal 11, and a bolt 65 is inserted therethrough.

As shown in FIG. 3, the bracket 4 disposed below the lower wall portion 11b of the main body 11 is a metal plate piece having a substantially Z shape when viewed from the second direction L2, for example, four corners of the equipment W (See FIG. 1).
The bracket 4 is formed with a flange portion 4a that protrudes from the side surface of the equipment W toward the outside in the first direction L1, and a through hole 6 is formed in the flange portion 4a. Bolts 65 inserted through the lower wall part 11 b of the main body 11 are inserted into the through hole 6. A nut 66 is screwed to the bolt 65 on the lower surface side of the flange portion 4a. Accordingly, the main body metal 11 and the bracket 4 of the damper unit 10 are fastened and fixed below the damper unit 10.

  Here, the coil spring 12 of the damper unit 10 urging the upper wall portion 11a and the fixing nut 63 is elastically deformable in the vertical direction. Therefore, the equipment device W supported via the bracket 4 is elastically supported by the damper unit 10 below the bolt connector 30. Thereby, even when the bolt coupling body 30 vibrates up and down via the ceiling housing F due to an earthquake or the like, vibration can be buffered by the damper unit 10, so that vibration is not input to the equipment W. it can. Therefore, the equipment device W can be stably supported below the bolt connector 30 without excessively shaking.

(Connecting member)
As shown in FIG. 2, the connecting member 40 is a member formed in a substantially block shape having a longitudinal direction in the vertical direction, a width direction in the second direction L2, and a thickness direction in the first direction L1. is there. The connecting member 40 is configured such that the first suspension bolt 31 and the second suspension bolt 32 are aligned on the coaxial bolt shaft O, and the lower end portion 31b of the first suspension bolt 31 and the upper end portion 32a of the second suspension bolt 32 are connected. It is provided to straddle. Thereby, the connection member 40 has connected the lower end part 31b of the 1st suspension bolt 31, and the upper end part 32a of the 2nd suspension bolt 32 mutually.

4 is a cross-sectional view taken along line AA in FIG.
As shown in FIG. 4, the connecting member 40 includes a first divided body 40a and a first divided body 40a disposed on one side (lower side in FIG. 4) in the first direction L1 across the bolt shaft O. And a pair of meshing bodies 50a, 50b meshing with the first suspension bolt 31 and the second suspension bolt 32 (see FIG. 2) from the outside in the radial direction, and the other of the first direction L1 across the bolt shaft O It is comprised by the 2nd division body 40b arrange | positioned at the side (upper side in FIG. 4) and couple | bonded with the 1st division body 40a.

(Split body)
FIG. 5 is an explanatory diagram before the pair of divided bodies 40a and 40b are coupled to each other. In addition, in FIG. 5, the 2nd division body 40b when a pair of division body 40a, 40b mutually couple | bonds is illustrated with the dashed-two dotted line.
As shown in FIG. 5, the pair of divided bodies 40a and 40b are connected to each other via a hinge shaft 45 provided at an end portion in the second direction L2, and are coupled to each other by a turning operation. Separation is possible. In addition, the hinge axis | shaft 45 of this embodiment is provided in two places at the up-down direction in the edge part of the one side of the 2nd direction L2 (refer FIG. 2).

  The first divided body 40a is a member made of, for example, a nonflammable or flame retardant material or metal, and is formed by machining or forging. The first divided body 40a includes a first main body portion 43a formed in a substantially block shape, and a first concave portion 41a formed on the mating surface side of the first main body portion 43a with the second divided body 40b. A cross-sectional shape orthogonal to the bolt axis O is formed in a substantially U shape.

  An engaged portion 44a is formed on the first main body portion 43a on the side opposite to the hinge shaft 45 (left side in FIG. 5). The engaged portion 44a has a through hole penetrating in the first direction L1. An engaging claw portion 44b formed in a second main body portion 43b described later is inserted into the through hole of the engaged portion 44a. Thereby, the engaged portion 44a and the engaging claw portion 44b can be engaged with each other.

  The first recess 41a is formed such that the depth in the first direction L1 is substantially the same as the radii of the first suspension bolt 31 and the second suspension bolt 32 (see FIG. 2). In the 1st recessed part 41a, the 1st meshing body 50a and the 2nd meshing body 50b are arrange | positioned in the state spaced apart only predetermined distance on the both sides of the 2nd direction L2. The first meshing body 50a and the second meshing body 50b are fixed in, for example, an adhesive or welding and are provided in the first recess 41a. The first meshing body 50a and the second meshing body 50b are members having the same shape. Therefore, in the following description, only the first mesh body 50a is described, and the description of the second mesh body 50b is omitted.

  As shown in FIG. 2, the first meshing body 50a is formed of a bolt having a predetermined diameter and length. In this embodiment, the diameter of the first meshing body 50a is formed to be substantially the same as that of the first suspension bolt 31 and the second suspension bolt 32. Moreover, the length of the 1st meshing body 50a is formed so that it may become shorter than the length of a pair of division body 40a, 40b in an up-down direction. Thereby, the 1st meshing body 50a is arrange | positioned without protruding from the edge part of the up-down direction of the connection member 40. As shown in FIG.

  The height and pitch of the thread of the external thread formed on the outer peripheral surface of the first meshing body 50a is the same as the height of the thread of the external thread formed on the outer peripheral surface of the first suspension bolt 31 and the second suspension bolt 32. It is formed substantially the same as the thickness and pitch. Thereby, the external thread part of the 1st meshing body 50a is formed so that engagement with the external thread part of the 1st suspension bolt 31 and the 2nd suspension bolt 32 is possible.

  The first engagement body 50a and the second engagement body 50b have a separation distance in the second direction L2 substantially equal to the diameters of the first suspension bolt 31 and the second suspension bolt 32 in the first recess 41a. Is provided. Thereby, between the 1st meshing body 50a and the 2nd meshing body 50b, the male thread part of the 1st meshing body 50a and the 2nd meshing body 50b, the 1st suspension bolt 31, and the 2nd suspension bolt The first suspending bolt 31 and the second suspending bolt 32 are arranged in a state where the 32 male thread portions are engaged with each other.

  As shown in FIG. 4, the second divided body 40 b is a member made of, for example, a non-flammable or flame retardant material or metal, like the first divided body 40 a. The 2nd division body 40b is provided with the 2nd main-body part 43b and the 2nd recessed part 41b, and the external shape is formed substantially the same as the external shape of the 1st division body 40a. Therefore, a detailed description of the shape of the second divided body 40b is omitted.

An engagement claw portion 44b is formed on the second main body portion 43b on the side opposite to the hinge shaft 45 (left side in FIG. 4). The engaging claw portion 44b is formed with an inclined portion that gradually decreases in thickness from the base end side toward the distal end side (from the upper side to the lower side in FIG. 4). Thereby, the engaging claw portion 44b can be easily inserted into the through hole of the engaged portion 44a formed in the first main body portion 43a and can be engaged with the engaged portion 44a.
The engaging claw portion 44b and the engaged portion 44a are engaged with and disengaged from each other, thereby constituting a lock mechanism 44 that can hold and release the engaged state of the pair of divided bodies 40a and 40b. In addition, the lock mechanism 44 of this embodiment is provided in two places in the up-down direction in the edge part of the 2nd direction L2 on the opposite side to the hinge axis | shaft 45 (refer FIG. 2).

(Method of connecting the first and second suspension bolts and the connection member)
Next, a method for connecting the first suspension bolt 31 and the second suspension bolt 32 and the connection member 40 will be described with reference to the drawings.
As shown in FIG. 5, before the first suspension bolt 31 and the second suspension bolt 32 are connected to the connection member 40, the engaged portion 44a and the engagement claw portion 44b that form the lock mechanism 44 are engaged. It has been released. At this time, the opening of the first recessed portion 41a of the first divided body 40a and the opening of the second recessed portion 41b of the second divided body 40b face outward in the first direction L1.

FIG. 6 is an explanatory diagram when the first suspension bolt 31 and the second suspension bolt 32 are connected to the connection member 40.
As shown in FIG. 6, when connecting the first suspension bolt 31 and the second suspension bolt 32 and the connecting member 40, first, the first suspension bolt 31 and the second suspension bolt 32 are aligned. Specifically, the second suspension bolt 32 is installed so that the bolt shaft of the first suspension bolt 31 suspended from the ceiling housing F and the bolt shaft of the second suspension bolt 32 connected to the facility equipment W coincide. The device W is moved. Thereby, the 1st suspending bolt 31 and the 2nd suspending bolt 32 are each arrange | positioned on the coaxial bolt axis | shaft O in the state which had the predetermined separation distance in the up-down direction.

  Subsequently, the connecting member 40 is moved in a state where the first suspension bolt 31 and the second suspension bolt 32 are coaxially aligned on the bolt shaft O. Then, the lower end portion 31 b of the first suspension bolt 31 and the upper end portion 32 a of the second suspension bolt 32 are engaged with the pair of meshing bodies 50 a and 50 b of the connecting member 40.

  Specifically, the lower end portion 31 b of the first suspension bolt 31 and the upper end portion 32 a of the second suspension bolt 32 are disposed between the pair of meshing bodies 50 a and 50 b in the first recess 41 a of the connecting member 40. Note that the lower end 31b of the first suspension bolt 31 and the upper end 32a of the second suspension bolt 32 are preferably arranged in the vicinity of the approximate center of the connecting member 40 in the vertical direction (see FIG. 2).

  At this time, the first meshing body 50a extends from one side (left side in FIG. 6) in the second direction L2 to the lower end portion 31b of the first suspension bolt 31 and the upper end portion 32a of the second suspension bolt 32. Are engaged. Further, the second meshing body 50b is connected to the lower end portion 31b of the first suspension bolt 31 and the upper end portion 32a of the second suspension bolt 32 from the outside on the other side (right side in FIG. 6) in the second direction L2. Meshed. That is, the pair of meshing bodies 50a and 50b mesh so as to sandwich the lower end portion 31b of the first suspension bolt 31 and the upper end portion 32a of the second suspension bolt 32 from both sides in the second direction L2.

Finally, in a state where the pair of meshing bodies 50a, 50b and the lower end portion 31b of the first suspension bolt 31 and the upper end portion 32a of the second suspension bolt 32 are meshed with each other, the first divided body 40a and the second divided body are separated. The body 40b is coupled.
Specifically, as shown in FIG. 5, the second body portion 43 b is rotated through the hinge shaft 45. And the to-be-engaged part 44a formed in the 1st division body 40a and the engagement nail | claw part 44b formed in the 2nd division body 40b are engaged, and the 1st division body 40a and the 2nd The divided body 40b is coupled.

At this time, since the lock mechanism 44 functions, as shown in FIG. 4, the pair of divided bodies 40 a and 40 b are arranged so that the lower end portion 31 b of the first suspension bolt 31 and the second suspension bolt 32 from both sides in the first direction L <b> 1. The upper end portion 32a is held in a sandwiched state. Thereby, as for a pair of division body 40a, 40b, the lower end part 31b of the 1st suspension bolt 31 and the upper end part 32a of the 2nd suspension bolt 32 come out in the 1st direction L1 from between a pair of meshing bodies 50a, 50b. Can be prevented. The first suspension bolt 31 and the second suspension bolt 32 and the pair of meshing bodies 50a and 50b are restricted from moving relative to each other in the vertical direction, and the meshing state is maintained.
The first suspension bolt 31 and the second suspension bolt 32 and the connection member 40 are connected by the above procedure. Thus, the first suspension bolt 31 and the second suspension bolt 32 and the connecting member 40 can be easily connected with one touch without using a tool or the like.

(Effects of the first embodiment)
According to the present embodiment, a pair of meshing bodies 50a and 50b that mesh with the first suspension bolt 31 and the second suspension bolt 32 from the outside in the radial direction is provided in association with the pair of divided bodies 40a and 40b. Therefore, compared with the prior art, the contact area of the first suspension bolt 31 and the second suspension bolt 32 and the meshing bodies 50a, 50b can be secured sufficiently wide. Thereby, since the connection strength of the 1st suspending bolt 31 and the 2nd suspending bolt 32, and the connection member 40 is fully securable, the installation apparatus W can be supported ceiling-suspended stably.
In addition, since the connecting member 40 is coupled to the pair of split bodies 40a and 40b, the pair of meshing bodies 50a and 50b mesh with the first suspension bolt 31 and the second suspension bolt 32, so that the coupling member 40 can be coupled. The first suspension bolt 31 and the second suspension bolt 32 can be connected to the connection member 40 without using a tool or the like. Therefore, good workability can be secured when the equipment device W is suspended from the ceiling.
Further, since the pair of meshing bodies 50a and 50b mesh with the first suspension bolt 31 and the second suspension bolt 32 from the radially outer side, the bolt shaft O of the first suspension bolt 31 and the second suspension bolt 32, The first suspension bolt 31 and the second suspension bolt 32 can be arranged so that the distance between the pair of meshing bodies 50a and 50b is equal. Thereby, since the connection member 40 can connect in the state which suppressed the shift | offset | difference of the bolt axis | shaft O of the 1st suspending bolt 31 and the 2nd suspending bolt 32 used as the load core of the equipment W supported by ceiling suspension, it was stably. The equipment W can be supported by the ceiling. Furthermore, the first suspension bolt 31 and the second suspension bolt 32 are arranged on the same straight line when viewed from the outside. Therefore, compared with the prior art (refer FIG. 12) which arrange | positions the two volt | bolts 111 and 112 in parallel and is arrange | positioned on a different straight line seeing from the outside, the outstanding design property is securable.

  Moreover, according to this embodiment, since a pair of meshing body 50a, 50b can be formed using a commercially available bolt, the bolt coupling body 30 can be provided at low cost. Moreover, since a pair of meshing body 50a, 50b formed with the bolt has a thread which can mesh with the thread of the 1st suspension bolt 31 and the 2nd suspension bolt 32, a pair of meshing body 50a, 50b And the first suspension bolt 31 and the second suspension bolt 32 can be securely engaged with each other.

  Moreover, according to this embodiment, since a pair of division body 40a, 40b can be couple | bonded and isolate | separated only by rotation operation, a pair of division body 40a, 40b can be couple | bonded and isolate | separated easily. In addition, since the lock mechanism 44 capable of holding and releasing the coupled state of the pair of divided bodies 40a and 40b is provided, the coupled state of the pair of divided bodies 40a and 40b can be held and released without using a tool or the like. In particular, as in the present embodiment, by forming the lock mechanism 44 with the engaged portion 44a and the engaging claw portion 44b, the combined state of the pair of divided bodies 40a and 40b can be held with one touch by so-called snap fit. And can be released. Therefore, good workability can be ensured when the equipment device W is suspended from the ceiling or during maintenance.

(Each variation of the first embodiment)
FIG. 7 is an explanatory diagram of the connecting member 40 according to the first modification of the first embodiment when viewed from above.
FIG. 8 is an explanatory diagram of the connecting member 40 according to the second modification of the first embodiment when viewed from above.
In the bolt coupling body 30 of the first embodiment, the coupling member 40 is provided with a pair of meshing bodies 50 a and 50 b. On the other hand, the first modified example and the second modified example of the first embodiment are different from the first embodiment in the number of meshing bodies provided in the connecting member 40. Note that a detailed description of the same configuration as the embodiment is omitted.

  As shown in FIG. 7, the connecting member 40 according to the first modification of the first embodiment is connected to the first suspension bolt 31 and the second suspension bolt 32 as the pair of divided bodies 40 a and 40 b are coupled. The three meshing bodies 50a, 50b, and 50c are meshed from the outside in the radial direction. The three meshing bodies 50a, 50b, 50c are arranged at equal intervals around the bolt axis O at a pitch of about 120 ° on the radially outer side of the first suspension bolt 31 and the second suspension bolt 32.

Of the three mesh bodies 50a, 50b, and 50c, the first mesh body 50a is provided inside the first divided body 40a and fixed by, for example, an adhesive or welding. Further, the second meshing body 50b and the third meshing body 50c are provided inside the second divided body 40b and fixed by, for example, an adhesive or welding.
Thereby, while a pair of division body 40a, 40b is connected so that rotation is possible, it is formed so that coupling | bonding and isolation | separation are mutually possible by rotation operation. Further, three meshing bodies 50 a, 50 b, 50 c are formed so as to be able to mesh with the first suspension bolt 31 and the second suspension bolt 32 from the outside in the radial direction, and a pair of divided bodies 40 a, The meshing state is maintained by connecting 40b.

  As shown in FIG. 8, the connection member 40 according to the second modification of the first embodiment is connected to the first suspension bolt 31 and the second suspension bolt 32 as the pair of divided bodies 40 a and 40 b are coupled. The four meshing bodies 50a, 50b, 50c, and 50d are meshed from the outside in the radial direction. The four meshing bodies 50a, 50b, 50c, and 50d are disposed at equal intervals around the bolt axis O at a pitch of about 90 ° on the radially outer side of the first suspension bolt 31 and the second suspension bolt 32.

Of the four meshing bodies 50a, 50b, 50c, 50d, the first meshing body 50a is fixed inside the first divided body 40a by, for example, an adhesive or welding. Further, the second meshing body 50b, the third meshing body 50c, and the fourth meshing body 50d are provided inside the second divided body 40b and fixed by, for example, an adhesive or welding.
Thereby, like the first embodiment and the first modified example, the four meshing bodies 50a, 50b, 50c, 50d can mesh with the first suspension bolt 31 and the second suspension bolt 32 from the radially outer side. In addition, the engagement state is maintained by connecting the pair of divided bodies 40 a and 40 b by the lock mechanism 44.

(Effect of each modification of the first embodiment)
According to the first modification example and the second modification example of the first embodiment, the first suspension bolt 31 and the second suspension bolt 32 are engaged with each other from the outside in the radial direction as the pair of divided bodies 40a and 40b are coupled. Since three or more meshing bodies 50a to 50c (or 50a to 50d) are provided, the first suspension bolt 31 and the second suspension bolt 32 and the meshing bodies 50a to 50a are compared with the prior art and the first embodiment. A wider contact area with 50c (or 50a to 50d) can be secured. Thereby, since the connection intensity | strength of the 1st volt | bolt 31 and the 2nd volt | bolt 32, and the connection member 40 can further be ensured, the installation apparatus W can be suspended more stably.

( Reference form)
FIG. 9 is an explanatory diagram of the connecting member 140 according to the reference form when viewed from the second direction.
FIG. 10 is an explanatory diagram in a state before the connection member 140 according to the reference form is attached when viewed from the side.
FIG. 11 is an explanatory diagram in a state before the connection member 140 according to the reference form is mounted when viewed from above.
In the bolt coupling body 30 of the first embodiment, the pair of meshing bodies 50a and 50b are formed by bolts that can mesh with the first suspension bolt 31 and the second suspension bolt 32 (see FIG. 2).
On the other hand, in the bolt coupling body 130 according to the reference embodiment, as shown in FIGS. 9 to 11, the pair of meshing bodies 150 a and 150 b can mesh with the first suspension bolt 31 and the second suspension bolt 32. This is different from the connecting member 40 of the first embodiment in that it is formed by a long nut 141 (corresponding to the “meshing nut” in the claims). Detailed description of the same configuration as in the first embodiment will be omitted.

(Connecting member)
As shown in FIG. 11, the connecting member 140 includes a first divided body 140a and a second divided body 140b formed by dividing the long nut 141 into two pieces along the radial direction.
Female thread portions of long nuts 141 are formed on the inner peripheral surfaces of the first divided body 140a and the second divided body 140b, respectively. The female thread portion constitutes a pair of meshing bodies 150a and 150b that can mesh with the first suspension bolt 31 and the second suspension bolt 32 from the outside in the radial direction.

  The first divided body 140a and the second divided body 140b are rotatably connected to each other via a hinge shaft 45, and can be combined and separated by a rotating operation. Then, by combining the first divided body 140a and the second divided body 140b, the first suspension bolt 31 and the second suspension bolt 32 are surrounded from the outside in the radial direction, and a pair of meshing bodies 150a that are female screw portions. , 150b can be screwed (engaged) to the first suspension bolt 31 and the second suspension bolt 32 from the outside in the radial direction.

  A first engaged portion 144a is attached to the first divided body 140a at a portion located on the opposite side of the hinge shaft 45 in the radial direction across the bolt shaft O. In addition, a pair of second engaged portions 144b are provided in the second divided body 140b with an interval in the vertical direction so as to sandwich the first engaged portion 144a from above and below. That is, when combining the 1st division body 140a and the 2nd division body 140b, the 1st to-be-engaged part 144a and the 2nd to-be-engaged part 144b are arrange | positioned in a line along the up-down direction.

  And the engagement pin 144c penetrated in the 1st to-be-engaged part 144a and the 2nd to-be-engaged part 144b is attached to the 1st division body 140a via the wire 125. The engagement pin 144c can fix the first divided body 140a and the second divided body 140b. That is, in the present embodiment, the lock mechanism 144 (see FIG. 9) is configured by the first engaged portion 144a, the second engaged portion 144b, and the engaging pin 144c. Note that the wire 125 may be a wire, a stretchable elastic string, a coil spring, or the like.

(Method of connecting the first and second suspension bolts and the connection member)
As shown in FIG. 9, the pair of meshing bodies 150 a and 150 b are rotated via the hinge shaft 45 (see FIG. 11), and the lower end portion 31 b of the first suspension bolt 31 and the upper end portion of the second suspension bolt 32. The pair of engagement bodies 150a and 150b of the connecting member 140 are engaged with 32a. At this time, the first meshing body 150 a and the second meshing body 150 b mesh so as to surround the lower end portion 31 b of the first suspension bolt 31 and the upper end portion 32 a of the second suspension bolt 32.

  Then, after arranging the first engaged portion 144a and the second engaged portion 144b (see FIG. 10) in a line along the vertical direction, the first engaged portion 144a and the second engaged portion 144 The engaging pin 144c is inserted into the engaging portion 144b. The first suspension bolt 31 and the second suspension bolt 32 and the connection member 140 are connected by the above procedure. Thus, the first suspension bolt 31 and the second suspension bolt 32 and the connecting member 140 can be easily connected with one touch without using a tool or the like.

(Effect of reference form)
According to the reference mode, the meshing body is the female thread portion of the long nut 141. For example, by dividing a commercially available nut, the pair of meshing bodies 150a and 150b can be formed at a low cost. Can provide. In addition, the female thread portion of the long nut 141 serving as the pair of meshing bodies 150 a and 150 b is formed by the first suspension bolt 31 and the second suspension bolt 32 with respect to the thread of the first suspension bolt 31 and the second suspension bolt 32. Since it meshes over the entire circumference, the pair of meshing bodies 150a, 150b, the first suspension bolt 31 and the second suspension bolt 32 can be firmly connected.

  The technical scope of the present invention is not limited to the above embodiments, and various modifications can be made without departing from the spirit of the present invention.

In the embodiment and the reference mode , the ceiling support body 1 that supports the equipment device W from the ceiling is configured by the four bolt connection bodies 30 and 130. However, the number of the bolt connection bodies 30 and 130 is four. There is no limit. The number of bolt coupling bodies 30 and 130 can be changed as appropriate in accordance with the weight and shape of the facility equipment W.
In particular, when the equipment W is a long member such as a duct or a pipe, the bolt coupling bodies 30 and 130 may be arranged in the extending direction of the duct or the pipe to support the ceiling. Bolt coupling bodies 30 and 130 may be arranged on both sides in the width direction of piping or the like to support the ceiling.

In the embodiment and the reference embodiment , the bolt coupling bodies 30 and 130 are coupled to the equipment device W via the damper unit 10 and the bracket 4. On the other hand, the bolt coupling bodies 30 and 130 may be directly coupled to the facility equipment W without using the damper unit 10 and the bracket 4. However, the provision of the damper unit 10 is advantageous in the first embodiment in that, for example, vibration when an earthquake occurs can be buffered and vibrations can be suppressed from being input to the equipment device W.

A bolt connector in which the configurations of the first embodiment and the reference embodiment are appropriately combined may be used.
For example, in the first embodiment, the lock mechanism 44 of the bolt connector 30 is configured by snap-fitting the engaged portion 44a and the engaging claw portion 44b to each other. However, the lock mechanism 144 of the bolt connection body 130 of the reference form may be applied to the bolt connection body 30 of the first embodiment.

2 ... Insert fixture (fixer) 30, 130 ... Bolt coupling body 31 ... First suspension bolt 31a ... Upper end portion of the first suspension bolt 31b ... Lower end portion of the first suspension bolt 32 ... Second suspension bolt 32a ... Upper end of second suspension bolt 32b ... Lower end of second suspension bolt 40, 140 ... Connecting member 40a, 40b, 140a, 140b ... Divided body 141 ... long nut (meshing nut) 44, 144 ... locking mechanism 50a, 50b, 50c, 50d, 150a, 150b ... meshing body F ... ceiling housing W ... equipment

Claims (3)

The upper end is screwed to a fixture provided on the ceiling housing, and the lower end is connected to the equipment, thereby connecting the equipment to the ceiling,
A first suspension bolt located on the ceiling housing side and having an upper end screwed to the fixture;
A second suspension bolt located on the equipment side and having a lower end connected to the equipment;
A connecting member that connects the lower end portion of the first suspension bolt and the upper end portion of the second suspension bolt in a state where the first suspension bolt and the second suspension bolt are coaxially matched,
With
The connecting member is
A plurality of division bodies coupled to each other so as to be capable of division;
A plurality of meshing bodies that are provided in the plurality of split bodies and that mesh with the first suspension bolts and the second suspension bolts from outside in the radial direction along with the coupling of the split bodies;
Equipped with a,
The meshing body is a meshing bolt having a thread that can mesh with the thread of the first suspension bolt and the second suspension bolt;
The said some division body was equipped with the recessed part which can arrange | position the said bolt for mesh | engagement, The bolt coupling body characterized by the above-mentioned . The bolt connection body according to claim 1,
The length of the said bolt for engagement is shorter than the length of the said division body, The bolt coupling body characterized by the above-mentioned . The bolt connection body according to claim 1 or 2 ,
The plurality of divided bodies are connected to each other so as to be rotatable, and are formed so as to be coupled and separated from each other by a rotation operation, and include a lock mechanism capable of holding and releasing the combined state of the plurality of divided bodies. Bolt connection body characterized by.

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