JP2013024405A - Hanging bolt connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a revolutionary hanging bolt connector with an extremely high commodity value.SOLUTION: The hanging bolt connector is used for connecting a hanging bolt 3 to an attachment portion 1 in a suspended manner. The hanging bolt 3 is used for suspending a body 2 to be attached from the attachment portion 1. The hanging bolt connector includes a fixing plate member 4 provided in the attachment portion 1 and a slide plate member 5 which is superposed on the surface of the fixing plate member 4 so as to be slidable in the superposed surface direction. The fixing plate member 4 is provided with a hole 4a communicating with a through-hole 1a provided in the attachment portion 1. The slide plate member 5 is provided with a screw hole 5a through which the hanging bolt 3 is threaded.

Description

  The present invention relates to a suspension bolt connector for suspending and connecting a suspension bolt for suspending a smoke exhaust port to a duct horizontally installed in a building such as a building or an underground mall.

  For example, buildings such as buildings and underground malls are equipped with smoke exhaust equipment for discharging toxic smoke generated in the event of a fire to the outside. The smoke exhaust port 52 is suspended from an opening 51A provided at an appropriate location of the duct 51 that is installed horizontally. Generally, the smoke exhaust port 52 is provided with an open / close lid at the lower end of the rectangular tubular body 52a. (Not shown) is provided.

  Note that a fan is provided in the duct 51 or the smoke exhaust port 52, and an air flow is generated in the duct 51 to discharge the air in the building to the outside.

  Therefore, in the event of a fire, this smoke exhaust facility opens the open / close door of the smoke exhaust port 52 automatically or manually, so that the smoke flows into the duct 51 from the smoke exhaust port 52. The smoke will be discharged to the outside.

  By the way, in recent years, there has been a phenomenon in which the smoke outlet 52 falls from the duct 51 while strong shaking earthquakes frequently occur.

  Specifically, the smoke outlet 52 (attachment body) is attached to the duct 51 (attachment location) at the periphery of the opening 51A provided on the bottom surface of the rectangular tube-shaped duct 51 as shown in FIG. The upper end flange portion 53a of the rectangular tube-shaped short tube 53 is fastened with bolts 55 at four locations via the angle member 54, and the upper end flange of the smoke exhaust port 52 is attached to the angle member 56 provided on the inner peripheral surface of the short tube 53. The portion 52a 'is suspended and connected via the bolt material 57. However, as described above, since the structure only supports the weight of the smoke exhaust port 52 and the short pipe 53 with the bolt 55 stop portion, for example, strong shaking In the event of an earthquake, the relevant part may be damaged (such as the bolt 55 falling off) and the smoke outlet 52 may fall from the duct 51.

  In this way, if the smoke vent 52 falls, it is dangerous if there are people underneath, for example, if many smoke vents 52 fall and multiple places of the duct 51 are opened at once (other than the place where the smoke is generated) If the duct 51 is in an open state even in the above location), a large amount of air flows into the duct 51 and the flow becomes worse. Therefore, there is a problem that smoke is not discharged well.

  The present invention pays attention to the above-mentioned problems and repeatedly performs various experiments, and as a result, has developed an epoch-making suspension bolt connector that exhibits unprecedented effects.

  The gist of the present invention will be described with reference to the accompanying drawings.

  A suspension bolt connecting tool for suspending and connecting a suspension bolt 3 for suspending the body 2 to be attached to the attachment location 1 to the attachment location 1, a fixing plate material 4 provided at the attachment location 1, and the fixing plate material 4 The plate 4 has a slide plate 5 provided in a superposed state on the surface so as to be slidable in the direction of the superposed surface, and the hole 4a provided at the attachment location 1 and communicating with the through hole 1a having a diameter larger than the suspension bolt 3 is fixed. The hole 4a is provided in the plate member 4, and the hole 4a is set to have a diameter larger than that of the suspension bolt 3. The suspension bolt 3 that is freely penetrated through the through hole 1a and the hole 4a is screwed in the penetration state. A screw hole portion 5a to be attached is provided in the slide plate member 5, and when the suspension bolt 3 is passed through the screw hole portion 5a, a nut member is provided at a portion of the suspension bolt 3 projecting outward from the screw hole portion 5a. 7 is configured to be screwable Those of the hanging bolt coupling according to claim.

  In addition, a suspension bolt connecting tool for suspending and connecting a suspension bolt 3 for suspending the smoke exhaust port 2 to the opening 1A of the duct 1 installed horizontally in the building is provided in the duct 1. A through plate 1a having a fixed plate material 4 and a slide plate material 5 provided in a superposed state on the surface of the fixed plate material 4 so as to be slidable in the direction of the superposed surface and provided in the duct 1 and larger in diameter than the suspension bolt 3 The fixed plate member 4 is provided with a hole portion 4a communicating with the suspension plate 4. The hole portion 4a is set to have a diameter larger than that of the suspension bolt 3, and is freely penetrated with respect to the through hole 1a and the hole portion 4a. A screw hole portion 5a into which the suspension bolt 3 is screwed in a penetrating state is provided in the slide plate member 5. When the suspension bolt 3 is passed through the screw hole portion 5a, the screw hole portion 5a of the suspension bolt 3 is formed. The nut member 7 protrudes outward. Those of the hanging bolt coupling is characterized in that a structure capable of screwed.

  Further, when the slide plate material 5 is rotated in the overlapping surface direction with the suspension bolt 3 as a rotation fulcrum with respect to the fixed plate material 4, the slide plate material 5 is engaged with the slide plate material 5 to rotate the slide plate material 5. The suspension bolt projection according to any one of claims 1 and 2, characterized in that a detent locking projection 6 that can be prevented is provided on the fixed plate member (4).

  Further, when the slide plate material 5 slides in the direction of the overlapping surface with respect to the fixed plate material 4, the anti-rotation locking protrusion is engaged with the slide plate material 5 to prevent the slide plate material 5 from sliding. 4. The suspension bolt connector according to claim 3, wherein the portion 6 is configured.

  5. The suspension bolt coupling tool according to claim 3, wherein the detent stop protrusion 6 is formed by bending up a peripheral edge of the fixed plate member 4. It is related to.

  The positioning projection 4b that can be positioned and inserted into the through hole 1a is provided on the back surface of the fixed plate member 4 on the periphery of the hole 4a. This relates to the hanging bolt connector described in 1.

  Further, the through-hole portion 5a of the slide plate member 5 is formed by forming a screw groove 5a "on the inner surface of a cylindrical portion 5a 'in which the slide plate member 5 is protruded from the surface by burring. The suspension bolt connector according to any one of Items 1 to 6.

  Since the present invention is configured as described above, since the attachment body is suspended and connected to the attachment location via the suspension bolt, the attachment of the attachment body to the attachment location becomes more rigid. It is possible to prevent the mounted body from dropping as much as possible even when subjected to vibration, and to obtain a good screw connection structure in a so-called double nut state in which a plurality of screw members are screwed to the suspension bolt. In this respect as well, for example, a mounting structure that is resistant to shaking can be obtained, and furthermore, the problem that occurs when attempting to suspend and attach the mounted body to the mounting location via the suspension bolt is surely solved. Thus, it is an epoch-making suspension bolt connector that exhibits an unprecedented effect, such as a simple and rapid operation of suspending the body to be attached through the suspension bolt.

  In addition, in the invention according to claim 2, unlike the above-described conventional example, the smoke exhaust port is suspended and connected to the duct via the suspension bolt, so that the connection of the smoke exhaust port to the duct becomes more rigid. For example, the smoke outlet can be prevented from falling as much as possible even when subjected to strong shaking due to an earthquake or the like, and a good screw in a so-called double nut state in which a plurality of screw members are screwed to a suspension bolt. In this respect, for example, a mounting structure that is resistant to shaking can be obtained, and further, a problem that arises when attempting to suspend and connect a smoke exhaust port to this duct via a suspension bolt. Thus, it is possible to provide an epoch-making suspension bolt connector that exhibits an unprecedented effect such as a simple and quick operation of suspending the smoke exhaust port from the duct via the suspension bolt.

  Further, in the invention described in claim 3, for example, a nut member screwed to a portion projecting outward of the screw hole portion of the suspension bolt is tightened, and the nut member is pressed against the screw hole portion, so that the fixing plate material is fixed. On the other hand, when the slide plate rotates in the direction of the overlapping surface using the suspension bolt as a pivot point, the anti-rotation projection provided on the fixed plate locks the slide plate and prevents the slide plate from rotating. For example, it is not necessary to screw the nut member with the other hand while preventing the screw hole portion from rotating with one hand, and the nut member can be screwed with one hand operation. It becomes an epoch-making suspension bolt coupling tool that exhibits unprecedented effects, such as being able to work very well in narrow places where it is difficult to reach.

  Further, in the invention described in claim 4, the anti-rotation protrusion that prevents the slide plate member from rotating in the overlapping surface direction with respect to the fixed plate member is configured to prevent the slide plate member from sliding relative to the fixed plate member. The slide plate material is prevented from sliding more than necessary, so that the workability is good, and the structure is extremely efficient without the need for providing a separate structure for preventing the slide plate material from rotating and sliding. Thus, it becomes an epoch-making suspension bolt coupling tool that exhibits an unprecedented function and effect, for example, a structure that exhibits the obtained function and effect can be obtained simply and at a low cost.

  Further, in the invention according to the fifth aspect, since the anti-rotation locking projection is formed by rising and bending the peripheral edge of the fixed plate material, the simple structure makes the cost low and the mass productivity excellent. In addition, for example, when the anti-rotation projection is raised at the inner edge of the hole of the fixed plate, the hole becomes larger, so the airtightness when the slide plate is provided in a superposed state is reduced. However, since it is not necessary to make the hole larger than necessary by providing a locking stop projection at a position unrelated to the hole of the fixed plate material, the slide plate material is put in a superposed state. It becomes an epoch-making suspension bolt coupling tool that exhibits an unprecedented operational effect, such as ensuring airtightness when provided.

  Moreover, in invention of Claim 6, it becomes an epoch-making suspension bolt coupling tool which exhibits the effect which does not exist conventionally, such as workability | operativity improving further.

  Further, in the invention according to claim 7, an innovative suspension bolt connection that exhibits an unprecedented function and effect, such as a simple and cost-effective structure that exhibits the above-described excellent function and effect. It becomes a tool.

1 is a perspective view showing Example 1. FIG. 3 is an explanatory cross-sectional view of a main part according to Embodiment 1. FIG. 1 is a perspective view showing Example 1. FIG. 1 is a perspective view showing Example 1. FIG. FIG. 4 is a schematic operation explanatory diagram of a main part according to the first embodiment. FIG. 3 is an explanatory diagram of a use state of the first embodiment. FIG. 3 is an explanatory diagram of a use state of the first embodiment. FIG. 3 is an explanatory diagram of a use state of the first embodiment. FIG. 3 is an explanatory diagram of a use state of the first embodiment. FIG. 6 is a perspective view showing Example 2. FIG. 6 is an explanatory cross-sectional view of a main part according to a second embodiment. FIG. 6 is a perspective view showing Example 2. It is explanatory sectional drawing which shows the manufacturing method of the suspension bolt coupling tool which concerns on Example 2. FIG. It is explanatory sectional drawing which shows the manufacturing method of the suspension bolt coupling tool which concerns on Example 2. FIG. It is explanatory drawing which shows the attachment state of the conventional smoke exhaust port.

  Embodiments of the present invention that are considered suitable (how to carry out the invention) will be briefly described with reference to the drawings, illustrating the operation of the present invention.

  As a method of using the suspension bolt connector according to the present invention, an operation of suspending the smoke exhaust port 2 (attached body 2) to the duct 1 (attachment location 1) via the suspension bolt 3 will be described as an example.

  For example, the fixed plate material 4 is provided in the duct 1 (attachment location 1). A through hole 1a having a diameter larger than that of the suspension bolt 3 is formed in advance in the duct 1 (attachment location 1), and when the fixing plate material 4 is provided in the duct 1 (attachment location 1), a hole in the fixing plate material 4 is formed. The portion 4a is in communication with the through hole 1a, and the screw hole portion 5a of the slide plate material 5 provided in the superposed state on the fixed plate material 4 is also in communication with the hole 4a and the through hole 1a.

  In this state, the upper end portion of the suspension bolt 3 is passed through the through hole 1a of the duct 1 (attachment location 1) and the hole portion 4a of the fixed plate member 4, and the upper end portion of the suspension bolt 3 is screwed into the screw hole portion of the slide plate member 5. The nut bolt 7 is screwed into a portion projecting outward from the screw hole portion 5a of the suspension bolt 3 so that the suspension bolt 3 is suspended. The nut member 7 will later function as a so-called double nut with the screw hole 5a. However, the nut member 7 may be screwed onto the suspension bolt 3 at the final stage of the work.

  When the smoke exhaust port 2 (attached body 2) is connected to the lower end of the suspension bolt 3 and the nut member 7 is tightened in this state, the nut member 7 is pressed against the screw hole 5a so-called double nut. It becomes a state and the work is completed.

  Therefore, for example, compared with the connection structure proposed previously, the smoke outlet 2 (attached body 2) is suspended and connected to the duct 1 (attachment location 1) via the suspension bolt 3, so that The connection of the smoke outlet 2 (attached body 2) to the duct 1 (attachment location 1) becomes firm.

  By the way, in the present invention, when connecting the smoke exhaust port 2 (attached body 2) to the lower end portion of the suspension bolt 3 that is suspended from the duct 1 (attachment location 1), the suspension bolt 3 is screwed. The plate member 5 is slidable in the direction of the overlapping surface with respect to the fixed plate member 4, and the suspension bolt 3 is free to move with respect to the through hole 1a and the hole portion 4a. The smoke exhaust port 2 (attached body 2) can be connected to the lower end of the suspension bolt 3 while being moved in a direction perpendicular to the length direction.

  This is because when the suspension bolt 3 is suspended and connected to the duct 1 (attachment location 1), the suspension bolt 3 is simply passed through the through hole 1a provided in the duct 1 (attachment location 1), and the upper end portion of the suspension bolt 3 is connected. Is fixed to the duct 1 (attachment location 1) in a non-movable manner, the smoke exhaust port 2 (attachment 2) is provided at the lower end of the suspension bolt 3 suspended from the duct 1 (attachment location 1). When connecting, if the suspension position of the suspension bolt 3 from the duct 1 (attachment location 1) does not match, the lower end of the suspension bolt 3 is connected to the smoke outlet 2 (attached body 2) in advance. Therefore, the through-hole 1a formed in the duct 1 (attachment location 1) must be accurately formed in advance at a precise position, which is very troublesome.

  In this respect, according to the present invention, as described above, the slide plate material 5 to which the suspension bolt 3 is screwed is slidable in the overlapping surface direction with respect to the fixed plate material 4, and the suspension bolt 3 includes the through hole 1a and the hole portion. Since it is freely movable with respect to 4a, the suspension bolt 3 suspended from the duct 1 (attachment location 1) can be moved in a direction perpendicular to the length direction of the suspension bolt 3.

  Therefore, when connecting the smoke exhaust port 2 (attached body 2) to the suspension bolt 3, for example, following the connection of the lower end of the suspension bolt 3 to the connection portion of the smoke exhaust port 2 (attached body 2). The upper end portion of the suspension bolt 3 connected to the duct 1 (attachment location 1) will slide, so that the operation of connecting the smoke exhaust port 2 (attached body 2) to the suspension bolt 3 is simple and easy. Moreover, since the accuracy of the formation position of the through-hole 1a provided in the duct 1 (attachment location 1) is not required so much, the operation of forming the through-hole 1a is simplified, and the duct 1 (attachment location 1) is provided. The operation of suspending the smoke exhaust port 2 (attached body 2) via the suspension bolt 3 can be performed easily and quickly.

  A specific embodiment 1 of the present invention will be described with reference to FIGS.

  In the present embodiment, a suspension bolt 3 for suspending a body 2 to be attached to an attachment location 1 is connected to the attachment location 1 in a suspended manner.

  In this embodiment, the smoke exhaust port 2 as the mounted body 2 is suspended from the duct 1 (exhaust duct / smoke exhaust duct) installed in the building as the attachment location 1 via the suspension bolt 3. Although it is a case, it is not restricted to this, For example, it is the structure which exhibits the characteristic of a present Example, such as when attaching the indoor unit (attachment body 2) of an air-conditioning equipment to the ceiling (attachment location 1) of a building in a suspended state. If there is, it can act appropriately.

  Further, in this embodiment, a so-called dimensioned bolt in which screw grooves are formed on the entire peripheral surface of the long rod body is used as the suspension bolt 3, but the screw is formed only on the upper end portion and the lower end portion of the long rod body. A type in which grooves are formed may be used.

  Specifically, it has a fixed plate material 4 provided above the opening of the duct 1 and a slide plate material 5 provided on the surface of the fixed plate material 4 in a superposed state so as to be slidable in the direction of the superposition surface.

  As shown in FIGS. 1 to 4, the fixed plate member 4 is an appropriate metal square plate-like body, and is provided with a hole 4 a having a circular shape in plan view at the center.

  The hole 4a is in communication with the through hole 1a provided in the connected portion 1 ′ of the duct 1 when the fixing plate 4 is connected to the upper position of the opening of the duct 1 in a superposed state. It is provided so as to have a diameter larger than the diameter of the suspension bolt 3 so as to freely pass through the suspension bolt 3.

  The hole 4a is set to have a diameter that is blocked by the slide plate material 5 when the slide plate material 5 is provided in a superposed state on the surface of the fixed plate material 4. Specifically, the slide plate material 5 is prevented from rotating. The diameter of the hole portion 4a and the size of the slide plate material 5 are such that the hole plate 4a is always closed by the slide plate material 5 within a movable range in which the lock projection 6 can be rotated and slidably moved. And the position of the rotation stop latching protrusion 6 is appropriately set.

  In the present embodiment, the sliding bolt 5 is configured to be restricted from sliding when the suspension bolt 3 collides with the inner edge of the hole 4a.

  Further, small holes 4 c are provided at the four corners of the fixed plate member 4, and these small holes are for screwing the fixed plate member 4 to the connected portion 1 ′ of the duct 1.

  Further, the fixed plate member 4 is engaged with the slide plate member 5 when the slide plate member 5 rotates with respect to the fixed plate member 4 in the overlapping surface direction with the suspension bolt 3 as a rotation fulcrum, and the slide plate member 5 rotates. A plurality of anti-rotation projections 6 that can prevent the rotation are provided.

  Each of the anti-rotation locking projections 6 is formed by rising and bending the peripheral edge of the fixed plate member 4.

  Specifically, the non-rotating locking projection 6 is formed by punching a notch piece 6a at the center position of each of the four sides of the rectangular fixed plate member 4, and each notch piece 6a is formed in a vertical shape inside. And projectingly formed on the surface (upper surface) of the fixed plate 4.

  Therefore, when the slide plate material 5 is rotated with respect to the fixed plate material 4 in the overlapping surface direction using the suspension bolt 3 as a rotation fulcrum, all or a part of the detent locking projections 6 is the peripheral portion of the slide plate material 5. It is possible to prevent the slide plate member 5 from rotating.

  In this embodiment, as described above, the anti-rotation locking projection 6 is formed by bending the peripheral edge of the fixed plate material 4 so that the holes of the fixed plate material 4 are formed as in the second embodiment described later. Compared with the case of providing the inner peripheral edge of the portion 4a, it is not necessary to make the hole 4a of the fixed plate 4 larger than necessary, and the slide plate 5 can completely close the hole 4a. A high structure can be obtained (particularly useful as a connector used in smoke exhausting equipment).

  Further, the rotation stop locking projection 6 is formed by bending a part of the notch piece 6a inward so that the slide plate member 5 in a superposed state is fixed on the surface of the fixed plate member 4 to stop and lock. It is configured.

  2 and 3, the fixing plate member 4 is provided with positioning protrusions 4b which can be positioned and inserted into the duct through holes 1a of the duct 1 on the peripheral portion of the hole 4a on the lower surface as shown in FIGS.

  Specifically, the positioning protrusion 4b is formed by burring, and is provided on the lower surface of the fixed plate member 4 in a cylindrical shape.

  Therefore, when connecting the fixed plate material 4 to the duct 1 in a superposed state, the fixed plate material 4 is slid on the surface of the duct 1 and the positioning protrusion 4b is inserted into the through hole 1a. It will be positioned by connected part 1 '. In this respect, the through hole 1a provided in the duct 1 has a diameter (at least larger than the diameter of the hole 4a) into which the positioning protrusion 4b can be inserted.

  As shown in FIGS. 1 to 4, the slide plate material 5 is an appropriate metal square plate-like body, and a screw hole portion 5 a having a circular shape in plan view is provided at the center.

  The screw hole portion 5a is formed by forming a screw groove 5a ″ on the inner surface of a cylindrical portion 5a ′ formed by projecting the slide plate material 5 to the surface by burring, and is configured to be screwed to the suspension bolt 3. Yes.

  Further, in this embodiment, when the suspension bolt 3 is passed through the screw hole 5a, the nut member 7 can be screwed onto a portion of the suspension bolt 3 protruding outward from the screw hole 5a. The screw hole portion 5a of the slide plate member 5 and the nut member 7 function as a so-called double nut.

  Further, the slide plate material 5 is provided on the surface of the fixed plate material 4 so as to be slidable and rotatable in the direction of the overlapping surface, and is configured to close the hole 4 a of the fixed plate material 4.

  Therefore, when this slide plate material 5 is connected to the fixed plate material 4 in a superposed state, the through hole of the fixed plate material 4 is closed, so that the airtightness is high.

  The operation | work which connects the smoke exhaust port 2 in the suspended state to the duct 1 via the suspension bolt 3 using the suspension bolt coupling tool which concerns on a present Example which consists of the above structure is demonstrated. Note that the upper end flange portion 13a of the rectangular tube-shaped short tube 13 is fastened to the periphery of the opening 1A provided on the bottom surface of the rectangular tube-shaped duct 1 with four bolts 15 through the angle member 14 (see FIG. 9). Reference numeral 16 denotes a packing disposed between the inner peripheral surface of the short tube 13 and the outer peripheral surface of the smoke outlet 2. In the present embodiment, the smoke outlet 2 is connected to the duct 1 through a plurality of (four) suspension bolts 3 in a suspended state, and each suspension bolt 3 performs the following connection work.

  As shown in FIG. 5, the fixing plate 4 is fixed to the duct 1 with screws 8. A through hole 1a and a screw fixing hole 1b having a diameter larger than that of the suspension bolt 3 are formed in the duct 1 in advance, and the fixing plate 4 is connected and fixed to the connected portion 1 ′ of the duct 1 in a superposed state. At this time, the hole 4a of the fixed plate 4 and the screw hole 5a of the slide plate 5 provided in the fixed state on the fixed plate 4 are in communication with the through hole 1a.

  In this state, the upper end portion of the suspension bolt 3 is passed through the through hole 1a of the duct 1 and the hole portion 4a of the fixed plate member 4, and the upper end portion of the suspension bolt 3 is screwed into the screw hole portion 5a of the slide plate member 5. (See FIG. 6), the nut member 7 is screwed into a portion projecting outward from the screw hole portion 5a of the suspension bolt 3 so that the suspension bolt 3 is suspended. When the upper end portion of the suspension bolt 3 is screwed into the screw hole portion 5 a of the slide plate material 5, the slide plate material 5 may rotate with respect to the fixed plate material 4 in the overlapping surface direction using the suspension bolt 3 as a rotation fulcrum. However, at this time, the slide plate member 5 is locked to the anti-rotation locking projection 6 and the rotation of the slide plate member 5 is prevented. Therefore, the operation of screwing the upper end portion of the suspension bolt 3 into the screw hole portion 5a of the slide plate material 5 does not need to be performed while pressing the slide plate material 5. This nut member 7 will later function as a so-called double nut with the screw hole portion 5a. However, the suspension bolt 3 is screwed into the screw hole portion 5a and is in a suspended state. In the stage, the nut member 7 may be screwed onto the suspension bolt 3.

  Subsequently, the lower end portion of the suspension bolt 3 is passed through the connection holes 2 a ′ provided at the four corners of the upper end flange portion 2 a of the smoke exhaust port 2, and the nuts 17 are connected to be connected.

  When the smoke exhaust port 2 is connected to the lower end of the suspension bolt 3 that is suspended from the duct 1, the slide plate material 5 to which the suspension bolt 3 is screwed is slidable in the overlapping surface direction with respect to the fixed plate material 4. And since this suspension bolt 3 is free to move with respect to the through hole 1a and the hole portion 4a, for example, the suspension bolt 3 is moved while moving the suspension bolt 3 in a direction perpendicular to the length direction of the suspension bolt 3. The smoke outlet 2 can be connected to the lower end (see FIG. 7).

  Subsequently, when the nut member 7 is screwed and tightened in this state, the nut member 7 comes into pressure contact with the screw hole portion 5a to form a so-called double nut state, and the nut member 7 is screwed to screw hole portion 5a. When the nut member 7 is pressed against the fixed plate material 4, the slide plate material 5 may rotate in the direction of the overlapping surface with the suspension bolt 3 as a rotation fulcrum. The slide plate material 5 is prevented from rotating by being locked to the stop-and-lock projection 6. Therefore, the operation of screwing the nut member 7 to the upper end portion of the suspension bolt 3 does not need to be performed while pressing the slide plate material 5 (see FIG. 8).

  The operation is completed when the nut member 7 is screwed (see FIG. 9).

  Note that the caulking agent is filled in the suspension bolt connector (the gap between the fixed plate member 4 and the slide plate member 5) according to the present embodiment as necessary to improve the airtightness.

  Therefore, according to the present embodiment, the weight of the short tube 13 can be reduced by connecting the smoke exhaust port 2 to the duct 1 via the suspension bolt 3, as compared with the previously proposed connection structure. Is not required to be supported by the suspension bolt 3, so that the connection of the smoke exhaust port 2 to the duct 1 becomes firm accordingly.

  Further, in the present embodiment, as described above, the slide plate material 5 to which the suspension bolt 3 is screwed is slidable in the overlapping surface direction with respect to the fixed plate material 4, and the suspension bolt 3 includes the through hole 1a and the hole portion. 4a, the suspension bolt 3 suspended from the duct 1 can be moved in a direction perpendicular to the length direction of the suspension bolt 3, so that the suspension bolt 3 has a smoke exhaust port. 2, for example, following the connection of the lower end portion of the suspension bolt 3 to the connection portion of the smoke outlet 2, the upper end portion of the suspension bolt 3 connected to the duct 1 will slide, Therefore, the operation of connecting the smoke exhaust port 2 to the suspension bolt 3 can be performed easily and without difficulty, and since the formation position of the through hole 1a provided in the duct 1 is not required to be so accurate, the formation of the through hole 1a is not required. Work becomes easy and duct Working hanging through the bolt 3 hanging the flue gas outlet 2 will be performed simply and quickly.

  Further, in this embodiment, when the slide plate 5 is rotated with respect to the fixed plate 4 in the overlapping surface direction using the suspension bolt 3 as a rotation fulcrum, the slide plate 5 is engaged with the slide plate 5 to rotate. Since the locking stop projection 6 that can prevent the rotation is provided on the fixed plate member 4, for example, a nut member 7 that is screwed to a portion projecting outward from the screw hole portion 5 a of the suspension bolt 3 is tightened. When the slide plate 5 rotates in the overlapping surface direction with the suspension bolt 3 as a rotation fulcrum with respect to the fixed plate 4 by press-contacting with the screw hole 5a, the anti-rotation locking protrusion provided on the fixed plate 4 6 can be engaged with the slide plate material 5 to prevent the slide plate material 5 from rotating. For example, the nut member 7 is screwed with the other hand while the screw hole 5a is prevented from rotating with one hand. The nut member 7 is screwed by one-hand operation. It can, thus, for example working in hard to reach narrow space of the hand is very well done that.

  In addition, for example, the upper end portion of the suspension bolt 3 is screwed into the screw hole portion 5 a of the slide plate material 5 that is superposed on the fixed plate material 4 provided in the duct 1, so that the slide plate material is attached to the fixed plate material 4. When 5 is rotated in the direction of the overlapping surface with the suspension bolt 3 as a rotation fulcrum, the non-rotating locking projection 6 provided on the fixed plate 4 is locked to the slide plate 5 to rotate the slide plate 5. For example, it is not necessary to screw the suspension bolt 3 with the other hand while stopping the screw hole 5a (slide plate material 5) with one hand. Therefore, for example, work in a narrow place that is difficult to reach can be performed very well.

  Further, in this embodiment, when the slide plate material 5 slides in the direction of the overlapping surface with respect to the fixed plate material 4, the anti-rotation locking is performed so that the slide plate material 5 is locked to prevent the slide plate material 5 from sliding. Since the projecting portion 6 is configured, the anti-rotation locking projecting portion 6 that prevents the slide plate material 5 from rotating in the overlapping surface direction with respect to the fixed plate material 4 also prevents the slide plate material 5 from sliding relative to the fixed plate material 4. Therefore, the slide plate material 5 is prevented from sliding more than necessary, so that the workability is good. Of course, it is an extremely efficient structure without the need to separately provide a structure for preventing the slide plate material 5 from rotating and sliding. In addition, the structure that exhibits the above-described excellent effects can be obtained simply and at a low cost.

  Further, in the present embodiment, the anti-rotation locking projection 6 is constructed by bending the peripheral edge of the fixed plate member 4 so that it can be manufactured at low cost and excellent in mass productivity because of its simple structure. For example, when the anti-rotation locking projection 6 is formed by bending the inner peripheral edge of the hole 4a of the fixed plate member 4 so that the hole 4a becomes larger, the slide plate 5 is provided in a superposed state. There is a possibility that the airtightness may be reduced, but it is not necessary to make the hole 4a larger than necessary by providing the anti-rotation locking protrusion 6 at a position unrelated to the hole 4a of the fixed plate 4 in this respect. Therefore, airtightness when the slide plate material 5 is provided in a superposed state can be ensured.

  A specific second embodiment of the present invention will be described with reference to FIGS.

  In this embodiment, as shown in FIGS. 10 to 12, the non-rotating locking projection 6 is provided with a plurality of (four) cutout pieces 6 a on the inner peripheral edge of the hole 4 a of the fixed plate member 4. It is the type formed by raising the piece 6a vertically.

  One of the non-rotating locking projections 6 is provided with a short length, and is fixed by deforming the short locking locking projection 6 as necessary. The slide plate material 5 in a superposed state can be removed from the plate material 4 (see FIGS. 13 and 14), and the removed slide plate material 5 can be used for other purposes (such as a washer). The same applies to Example 1 in that the slide plate 5 can be removed.

  The present invention is not limited to the first and second embodiments, and the specific configuration of each component can be designed as appropriate.

DESCRIPTION OF SYMBOLS 1 Attachment location and duct 1A Opening part 1a Through-hole 2 Smoke exhaust port and to-be-attached body 3 Hanging bolt 4 Fixed plate material 4a Hole part 4b Positioning protrusion 5 Slide plate material 5a Screw hole part 5a 'Cylindrical part 5a "Screw groove 6 Around Stop locking projection 7 Nut member

Claims (7)

  A suspension bolt connector for suspending and connecting a suspension bolt that suspends a body to be attached to an attachment location, the fixing plate material provided at the attachment location, and a polymerization state on the surface of the fixed plate material A sliding plate provided slidably in the direction, and provided in the fixed plate material with a hole portion provided at the mounting location and communicating with a through hole having a diameter larger than that of the suspension bolt. The hole portion is provided by the suspension bolt. A screw hole portion in which the suspension bolt is screwed in the penetrating state, and is provided in the screw hole portion. A suspension bolt connecting tool characterized in that when a suspension bolt is penetrated, a nut member can be screwed onto a portion of the suspension bolt that protrudes outward from the screw hole portion.   A suspension bolt connecting tool for suspending and connecting a suspension bolt for suspending a smoke exhaust port to the duct at an opening of a duct laid horizontally in the building, the fixing plate material provided in the duct, and the fixing plate material A slide plate provided in a superposed state on the surface so as to be slidably movable in the direction of the superposition surface, and a hole portion provided in the duct and communicating with a through hole having a diameter larger than that of the suspension bolt is provided in the fixed plate. A portion having a diameter larger than that of the suspension bolt, and a screw hole portion in which the suspension bolt that is freely penetrated with respect to the through hole and the hole portion is screwed in the penetration state is provided in the slide plate member, A suspension bolt connector, wherein when the suspension bolt is passed through the screw hole portion, a nut member can be screwed to a portion of the suspension bolt that protrudes outward from the screw hole portion.   When the slide plate material rotates with respect to the fixed plate material in the direction of the overlapping surface with the suspension bolt as a rotation fulcrum, it can be locked to the slide plate material to prevent the slide plate material from rotating. The suspension bolt connector according to claim 1, wherein a protrusion is provided on the fixed plate member.   When the slide plate member slides in the direction of the overlapping surface with respect to the fixed plate member, the anti-rotation locking protrusion is configured so as to lock the slide plate member and prevent the slide plate member from sliding. 4. The suspension bolt connector according to claim 3, wherein   The suspension bolt coupling tool according to any one of claims 3 and 4, wherein the anti-rotation locking projection is formed by bending a peripheral edge of the fixed plate material.   The suspension bolt connection according to any one of claims 1 to 5, wherein a positioning protrusion that can be positioned and inserted into the through-hole is provided on a peripheral portion of the hole portion on the back surface of the fixing plate member. Ingredients.   The through-hole part of the said slide plate material forms a screw groove in the inner surface of the cylindrical part which made the said slide plate material protrude on the surface by burring process, The any one of Claims 1-6 characterized by the above-mentioned. The hanging bolt connector described in 1.

Images