JP2020085101A - Ceiling hanging device fixture - Google Patents

Abstract

To provide a ceiling hanging device fixture which enables a ceiling hanging device to be installed efficiently on a ceiling in a short time and reduction of time and labor for installation work of the ceiling hanging device.SOLUTION: A ceiling hanging device fixture 10A includes: a hanging pipe 12 extending in a vertical direction and having an upper end installation part 20 installed on a ceiling slab and a lower end support part 21 located below the upper end installation part 20; horizontal support frame materials 17 each extending from the lower end support part 21 of the hanging pipe 12 in a horizontal direction and having a base end part 38 which is installed at the lower end support part 21 of the hanging pipe 12 and a tip part 40 which is located at the outer side of the base end part 38 in the horizontal direction; and vertical support frame materials 18 each extending from the tip part 40 of the horizontal support frame material 17 in the vertical direction and having an upper end part 45 which is installed at the tip part 40 of the horizontal support frame material 17 and a lower end part 47 which is located below the upper end part 45 and engaged with a hanging metal fitting of the ceiling hanging device.SELECTED DRAWING: Figure 1

Description

The present invention relates to a ceiling suspension device fixing device for fixing a suspension device to a structure in a suspended state.

A first steady rest bolt group consisting of a plurality of steady rest bolts, one end of which is attached to each attachment portion of the structure and the plurality of suspension members, and one end at each attachment portion of the suspension device and the plurality of suspension members A second steadying bolt group consisting of a plurality of steadying bolts, and a fastening member for fastening the other ends of the steadying members of the first steadying bolt group and the second steadying bolt group to each other. And a steady rest that prevents swing of a hanging device that is suspended from a structure (see Patent Document 1).

As a fastening member of this steady rest, the other ends of the steady rests of the first steady rest bolt group and the second steady rest bolt group are provided to a member attached to the other end of each steady rest bolt. Fastening is performed by an insertion member inserted into the hole or the hole provided at the other end of each steady rest bolt. Each of the steady rest bolts is independently movable around the insertion member when the fastening by the fastening member is loose. In the steady rest, since the steady rest bolts of the first steady rest bolt group and the second steady rest bolt group are fastened together by the fastening member, it is possible to handle a large number of steady rest bolts together. It is possible to easily perform the mounting work in the work at high places.

JP, 2014-134236, A

When suspending ceiling-mounted devices such as 4-way ceiling-mounted cassette type air conditioners, 2-way ceiling-mounted cassette type air conditioners, and ceiling-mounted lighting using hanging bolts on a structure such as a ceiling slab, use the four corners of the ceiling-mounted device. Four suspension bolts are arranged, or two suspension bolts are arranged at two corners of the ceiling suspension device, and two diagonal members are connected to the X shape on the four or two surfaces formed by these suspension bolts. The ceiling suspension device is reinforced, and the ceiling suspension device is fixed by the suspension member formed of the suspension bolts or the diagonal members, and the ceiling suspension device is suspended from the ceiling. In the construction where the suspension length becomes long, the intersection angle of the suspension bolts is restricted to 45°±15°, and it is necessary to install an X-shaped reinforcing inclination member and a two-stage or three-stage suspension member. It takes a long time and a lot of labor for the installation work.

The steady rest device disclosed in Patent Document 1 includes a first steady rest bolt group including a plurality of steady rest bolts and a second steady rest bolt group including a plurality of steady rest bolts in a space above a ceiling suspension device. While installing and, the suspension device is connected to the steady rest bolt group. In the case of this steady rest method, seismic resistance calculation cannot be performed for the design requirements of the seismic intensity for structure design, so actual construction must be carried out, and the effectiveness must be verified by steady rest experiments, etc. Not only does it require a considerable amount of time and labor for the installation work of the ceiling suspension device, but also the steady-state bolts occupy a large space in the space above the ceiling suspension device, and the steady-state bolts become an obstacle. No other equipment or equipment can be placed in the space above the ceiling-mounted equipment.

An object of the present invention is to manufacture a ceiling suspension device fixing device that satisfies the design requirements of seismic intensity for designing a structure before construction, and while stopping the swing of the constructed ceiling suspension device, mount the ceiling suspension device on the ceiling. An object of the present invention is to provide a ceiling suspension device fixing device that can be efficiently installed in a short time and that can reduce the time and labor required for installation work of the ceiling suspension device. Another object of the present invention is to occupy a large space in the space above the ceiling suspension device, and to arrange other devices and equipment in the space above the ceiling suspension device. It is an object of the present invention to provide a ceiling suspension device fixing device that can increase the working space of a person and can effectively use the space above the ceiling suspension device.

The premise of the present invention for solving the above-mentioned problems is a ceiling suspension device fixing device for fixing a ceiling suspension device to a structure in a suspended state.

As a feature of the present invention on the above-mentioned premise, a ceiling suspension device fixing device is a suspending member that has an upper end installation portion that extends vertically and is installed in a structure and a lower end support portion that is located below the upper end installation portion, A horizontal support frame having a base end extending horizontally from the lower end support of the suspension member and installed on the lower end support of the suspension member, and a distal end located horizontally outward of the base end, An upper end that extends vertically from the tip of the horizontal support frame and is installed at the tip of the horizontal support frame, and a lower end that is located below the upper end and that is locked to the hanging bracket of the ceiling suspension device. And a vertical support frame having.

As an example of the present invention, a horizontal support frame is a first horizontal support frame extending in a first horizontal direction from a lower end support portion of a hanging member, and a horizontal direction separated from the first horizontal support frame by a predetermined angle. A second horizontal support frame extending in the second horizontal direction, a third horizontal support frame extending in the third horizontal direction at a predetermined horizontal distance from the second horizontal support frame, and a third horizontal support frame. A first horizontal support frame extending vertically from a front end of the first horizontal support frame with a fourth horizontal support frame extending in a fourth horizontal direction at a predetermined horizontal distance from the material. A vertical support frame, a second vertical support frame that extends vertically from the tip of the second horizontal support frame, and a third vertical support frame that extends vertically from the tip of the third horizontal support frame, It is formed of a fourth vertical support frame extending vertically from the tip of the fourth horizontal support frame.

As another example of the present invention, the first to fourth horizontal support members can be swung in the direction around the hanging member around the base end portions of the horizontal support members. As another example of the present invention, in the first to fourth horizontal support members, the base ends of the horizontal support members are movable in the horizontal direction outward and in the horizontal direction in the lower end support portion of the hanging member. It is possible to change the horizontal extension dimension of the horizontal support frame members from the lower end support portion of the suspension member.

As another example of the present invention, in the first to fourth vertical support frames, the upper ends of the vertical support frames are horizontally outward and horizontally inward at the tips of the first to fourth horizontal support frames. It is possible to move to and, and it is possible to change the horizontal installation positions of the vertical support members at the tips of the first to fourth horizontal support members. As another example of the present invention, at the lower ends of the first to fourth vertical support frames, the hanging metal fittings of the ceiling suspension device can move vertically upward and vertically downward, and the first to fourth vertical supports It is possible to change the vertical locking position of the suspension fitting of the ceiling suspension device at the lower end of the frame.

As another example of the present invention, the first to fourth horizontal support members have a plurality of horizontally long openings arranged at equal intervals between the base end portion and the tip end portion thereof.

As another example of the present invention, a ceiling suspension device fixing device includes a fixing plate that extends horizontally and is fixed to a ceiling slab, and a fixing plate that is located immediately below the fixing plate and that extends horizontally and is fixed to the fixing plate. And the upper end installation portion of the hanging member is fixed to the upper end flange.

As another example of the present invention, a ceiling suspension device fixing device has an upper end reinforcing rib that is fixed to an upper end installation portion of a hanging member and is fixed to an upper end flange to extend in a vertical direction.

As another example of the present invention, the ceiling suspension device fixing device includes a lower end first flange that extends horizontally and is attached to a lower end support portion of the hanging member, and a lower end that extends horizontally and that is below the lower end first flange. And a lower end second flange attached to the lower end support portion of the hanging member, and a base end portion of the horizontal support frame is installed between the lower end first flange and the lower end second flange.

As another example of the present invention, the ceiling suspension device fixing device has a lower end reinforcing rib that is fixed to the lower end support portion of the hanging member and is fixed to the lower end first flange to extend in the vertical direction.

According to the ceiling suspension device fixing device of the present invention, a suspension member having an upper end installation portion installed on a structure such as a ceiling slab and a lower end support portion located below the upper end installation portion, and a lower end support portion of the suspension member. A horizontal support frame having a base end and a tip located horizontally outside the base end, and an upper end installed at the tip of the horizontal support frame and below the upper end. And a vertical support frame having a lower end that is locked to a suspension fitting of the ceiling mount device, the upper end installation portion of the suspension member is installed on the structure, and the lower end of the vertical support frame is installed on the ceiling mount device. By suspending the suspension fitting, the ceiling suspension device can be suspended from the structure. The ceiling-mounted device fixing device has an earthquake-resistant design for satisfying the designed seismic intensity, and can enable the suspension of the ceiling-mounted device in the event of an earthquake. In addition, it is possible to manufacture the ceiling mount device fixing device in a safe place such as a factory or floor while performing seismic resistance calculation in advance, and the ceiling mount device fixing device can be manufactured efficiently in a short time. In addition, the ceiling suspension device can be efficiently installed in a short time, and the time and labor required for the installation work of the ceiling suspension device can be reduced. Only the hanging member is located in the space above the ceiling suspension device, and the suspension member does not occupy a large space in the space above the ceiling suspension device, and a large space is secured above the ceiling suspension device. , Other equipment or equipment can be arranged in the space above the ceiling suspension device, the working space of the worker can be increased in the space above the ceiling suspension device, and the worker can widely use the workspace. Therefore, the space above the ceiling suspension device can be used effectively and safely.

A horizontal support frame extends from the lower end support portion of the hanging member in the first horizontal direction, and a first horizontal support frame extends horizontally from the first horizontal support frame at a predetermined angle in the second horizontal direction. 2 horizontal support frame members, a third horizontal support frame member that is horizontally separated from the second horizontal support frame member by a predetermined angle and extends in a third horizontal direction, and a third horizontal support member member that is horizontally separated from the third horizontal support member member by a predetermined angle. And a fourth horizontal support frame extending in the fourth horizontal direction, the vertical support frame extending vertically from the tip of the first horizontal support frame, and the second horizontal support frame. A second vertical support frame extending vertically from the tip of the support frame, a third vertical support frame extending vertically from the tip of the third horizontal support frame, and a tip of the fourth horizontal frame. From the fourth vertical support frame extending vertically from the ceiling suspension equipment fixing device, the upper end installation portion of the suspension member is installed on a structure such as a ceiling slab, the first to fourth vertical support frame. By locking the lower end portion of each of the suspension fittings to each suspension fitting of the ceiling suspension device, the ceiling suspension device can be hung securely on the structure. The ceiling-mounting equipment fixing device can efficiently install the ceiling-mounting equipment on the structure in a short time by using the first to fourth vertical support frames, and reduces the time and labor required to install the ceiling-mounting equipment. Can be reduced. The ceiling mount device fixing device does not occupy a large space in the space above the ceiling mount device because the first to fourth horizontal support frame members and the first to fourth vertical support frame members do not occupy a large space. It is possible to arrange other devices and equipment in the space above the ceiling suspension device, increase the working space of the worker in the space above the ceiling suspension device, and increase the work space for the worker. Therefore, the space above the ceiling suspension device can be used effectively and safely.

The ceiling suspension device fixing device in which the first to fourth horizontal support frames are rotatable around the base members of the horizontal support frames in the direction around the suspending member is used to suspend the first to fourth horizontal support frames. By swiveling in the direction of the member, the swivel angles of the first to fourth horizontal support frames can be changed according to the size, shape, and vertical and horizontal dimensions of the ceiling suspension device, and the suspension metal fittings of the ceiling suspension device can be changed. The position of the first to fourth vertical support frames can be changed according to the position, and ceiling mount equipment of various shapes can be installed on a structure such as a ceiling slab using the ceiling mount equipment fixture. it can.

The base end portions of the first to fourth horizontal support frames are movable horizontally outward and horizontally inward at the lower end support portion of the hanging member, and the horizontal support frame members from the lower end support portion of the hanging member are provided. The ceiling suspension device fixing device capable of changing the extension dimension in the horizontal direction of the first to fourth horizontal support members is a horizontal end and a horizontal end in the lower end support part of the hanging member. By moving to the size, shape, and vertical and horizontal dimensions of the ceiling suspension device, the horizontal extension dimension of the horizontal support frame from the lower end support part of the suspension member can be changed. It is possible to install ceiling-mounted equipment of different sizes, shapes, and vertical and horizontal dimensions on a structure such as a ceiling slab using the equipment. Further, the position of the ceiling suspension device can be adjusted in the horizontal direction, and the position of the ceiling suspension device can be adjusted to a predetermined position (for example, the opening position of the ceiling board).

The upper ends of the first to fourth vertical support frames are movable to the outside in the horizontal direction and the inward in the horizontal direction at the tips of the first to the fourth horizontal support frames. The ceiling-mounted device fixing device capable of changing the horizontal installation positions of the vertical support frames at the tip end of the material is a first to fourth horizontal support frame at the upper end of the first to fourth vertical support frames. The vertical support racks at the front ends of the first to fourth horizontal support racks are moved in accordance with the size, shape, and vertical and horizontal dimensions of the ceiling suspension device by moving them horizontally outward and horizontally inward. The installation position of the material in the horizontal direction can be changed, and the ceiling suspension device having different sizes, shapes, and vertical and horizontal dimensions can be installed on the structure such as the ceiling slab by using the ceiling suspension device fixing device. Further, the position of the ceiling suspension device can be adjusted in the horizontal direction, and the position of the ceiling suspension device can be adjusted to a predetermined position (for example, the opening position of the ceiling board).

The ceiling-mounted device fixing device having a plurality of horizontally long openings in which the first to fourth horizontal support frame members are arranged at equal intervals between the base end portion and the tip end portion thereof uses any one of those openings. Since the first to fourth horizontal support frames can be moved horizontally outward and horizontally inward at the lower end support portion of the suspension member, the size and shape of the ceiling suspension device and vertical and horizontal dimensions can be adjusted. It is possible to change the horizontal extension dimension of those horizontal support frames from the lower end support part of the suspension member, and use the ceiling suspension device fixing device to mount various ceiling suspension devices with different sizes, shapes, and vertical and horizontal dimensions. It can be installed on a structure such as a ceiling slab. The ceiling-mounted device fixing fixture uses one of the openings to move the upper ends of the first to fourth vertical support frames horizontally outward and horizontally inward in the first to fourth horizontal support frames. Since it can be moved, it is possible to change the horizontal installation positions of those vertical support members in the first to fourth horizontal support members according to the size, shape, and vertical and horizontal dimensions of the ceiling suspension device. Various ceiling-mounted devices with different sizes, shapes, and vertical and horizontal dimensions can be installed on a structure such as a ceiling slab using a device fixing device.

At the lower end of the first to fourth vertical support frames, the hanging metal fittings of the ceiling suspension device can move vertically upward and vertically downward, and the ceiling suspension device at the lower ends of the first to fourth vertical support frames. The ceiling hanging device fixing device capable of changing the vertical locking position of the hanging metal fitting of the above is a vertical locking position of the hanging metal fitting of the ceiling hanging equipment at the lower end portions of the first to fourth vertical support frames. By changing the direction, it is possible to correct the inclination of the ceiling suspension device with respect to the structure such as the ceiling slab, to ensure the horizontal state of the ceiling suspension device with respect to the structure, and to suspend the ceiling suspension device against the structure. The equipment can be installed horizontally. Further, the position of the ceiling suspension device can be adjusted in the vertical direction, and the position of the ceiling suspension device can be adjusted to a predetermined position (for example, the opening position of the ceiling board).

The upper end of the hanging member includes a fixed plate that extends in the horizontal direction and is fixed to a structure such as a ceiling slab, and an upper end flange that is located immediately below the fixed plate and that extends in the horizontal direction and that is fixed to the fixed plate. The ceiling suspension device fixing device, in which the installation portion is fixed to the upper end flange, can firmly fix the hanging member to the structure by using the fixing plate and the upper end flange. It does not come off, and it is possible to prevent accidental drop accidents of the suspended equipment. In the ceiling suspension device fixing device, the fixing plate can be installed on the structure in advance and the hanging member can be attached thereafter, and the hanging member can be easily installed on the structure.

A ceiling suspension device fixing device having an upper end reinforcing rib that is fixed to an upper end installation portion of a hanging member and fixed to an upper end flange and extends in a vertical direction is an upper end reinforcement rib fixed to an upper end installation portion of a hanging member and a fixing flange. This increases the strength and rigidity of the joint of the suspension member, and even if the suspension member is subjected to the load of the ceiling suspension equipment or the vibration force due to an earthquake, the suspension member will not shake and be damaged or damaged. It is possible to prevent an accidental drop accident from the structure of the ceiling suspension device due to breakage or damage.

A lower end first flange extending horizontally and attached to a lower end support portion of the hanging member, and a lower end first flange extending horizontally and located below the lower end first flange and attached to a lower end support portion of the hanging member. The ceiling suspension device fixing device including two flanges, in which the base end portion of the horizontal support frame is installed between the lower end first flange and the lower end second flange, is a lower end first member attached to the lower end support portion of the hanging member. By installing the base end of the horizontal support frame between the one flange and the second flange of the lower end, the base end of the horizontal support frame can be reliably installed on the lower end support of the suspension member.

The ceiling suspension device fixing device having a lower end reinforcing rib fixed to the lower end support portion of the hanging member and fixed to the lower end first flange and extending in the vertical direction is a lower end fixed to the lower end support portion of the hanging member and the lower end flange. The reinforcing ribs increase the strength and rigidity of the joints of the suspension members, and even if the suspension members are subjected to the load of the ceiling suspension equipment or an excitation force due to an earthquake, the suspension members do not shake and are not damaged or damaged. It is possible to prevent an accidental drop accident from the structure of the ceiling suspension device due to breakage or damage of members.

The side view of the ceiling suspension apparatus fixing tool shown as an example. The top view of a ceiling suspension equipment fixing tool. The perspective view of the suspension pipe (suspension member) shown as an example. FIG. 3 is a partially enlarged perspective view of a hanging pipe, a fixing plate, and an upper end flange. The perspective view of a lower end 1st flange and a lower end 2nd flange. The perspective view of the 1st-4th horizontal support frame shown as an example. The elements on larger scale of the base end part of the 1st-4th horizontal support frame. The perspective view of the 1st-4th vertical support frame shown as an example. FIG. 4 is a partially enlarged perspective view of the tip end portions of the first to fourth horizontal support frames and the upper end portions of the first to fourth vertical support frame members. FIG. 6 is a top view of the first lower end first flange and the lower end second flange showing the first horizontal support member to the fourth horizontal support member attached thereto. The expanded perspective view of the lower end part of the 1st-4th vertical support frame. The perspective view of the 1st-4th horizontal support frame shown as another example. FIG. 3 is a side view of the ceiling suspension device fixing device shown with the ceiling suspension device attached. The partial expanded sectional view of the suspension pipe attached to the ceiling slab, a fixed plate, and an upper end flange. The side view of another example of the ceiling suspension equipment fixing tool shown in the state where the ceiling suspension equipment was attached. The partial expanded sectional view of the upper end installation part of a hanging pipe, a fixed plate, and an upper end flange. The partial expanded sectional view of the lower end support part of a hanging pipe, and a lower end 1st flange.

Details of the ceiling suspension device fixing device according to the present invention will be described below with reference to the accompanying drawings such as FIG. 1 which is a side view of the ceiling suspension device fixing device 10A shown as an example. 2 is a top view of the ceiling suspension device fixing device 10A, and FIG. 3 is a perspective view of the suspension pipe 12 (suspension member) shown as an example. FIG. 4 is a partially enlarged perspective view of the suspension pipe 12 (suspension member), the fixing plate 13, and the upper end flange 14, and FIG. 5 is a perspective view of the lower end first flange 15 and the lower end second flange 16. 1 and 2, the vertical direction is indicated by arrow A (only in FIG. 1), and the horizontal direction is indicated by arrow B. FIG. 4 shows a state before the upper end installation portion 20 of the hanging pipe 12 is installed on the upper end flange 14.

The ceiling-mounted device fixing device 10A (including the ceiling-mounted device fixing device 10B) includes a ceiling slab 19 (a ceiling-mounted device 11 such as a four-way ceiling-embedded cassette air conditioner, a two-way ceiling-embedded cassette air conditioner, and a ceiling-mounted lighting) It is fixed in a state of being suspended from a structure). Note that the ceiling suspension device fixing device 10A (including the ceiling suspension device fixing device 10B) includes not only the ceiling slab 19 but also the ceiling suspension device 11 such as a beam (structure), a roof (structure), a corridor (structure), It is also used when it is fixed in a suspended state on a veranda (structure).

The ceiling suspension device fixing device 10A includes a vertically extending hanging pipe 12 (a hanging member), a horizontally extending fixing plate 13 and an upper end flange 14, and a horizontally extending lower end first flange 15 and a lower end second flange 16. The horizontal support frame 17 extends in the horizontal direction and the vertical support frame 18 extends in the vertical direction.

The suspension pipe 12 (suspension member) is made of a predetermined metal and is formed in a vertically long cylindrical shape. The hanging pipe 12 has an upper end installation portion 20 installed on the upper end flange 14 (ceiling slab 19) and a lower end support portion 21 located below the upper end installation portion 20. As shown in FIG. 3, a screw 22 is formed on the upper end installation portion 20 and the lower end support portion 21 of the suspension pipe 12.

The specifications of the hanging pipe 12 are examined based on the value calculated by the following calculation formula. Horizontal load: P=KH (W1+W2), bending moment: M=P·H·g/1000, required section modulus: Zn=M/Fb, horizontal seismic acceleration: KH=1.0G, gravitational acceleration g=9.80665m /S ² , allowable bending stress of steel Fb=23.5 kN/cm ²

For example, equipment weight W1 is 50 kg, hardware weight W2 is 33 kg, height H is 100 cm, the bending moment M 81.4kN · cm, is necessary section modulus Zn 3.5 cm ^3, section modulus Z is 9.03Cm ³ In this case, the specifications of the hanging pipe 12 (compatible pipe) are 50 A, the device weight W1 is 100 kg, the metal weight W2 is 37 kg, the height H is 150 cm, the bending moment M is 201.5 kN·cm, and the required section modulus Zn is 8.6 cm ^3, hanging pipe 12 specifications (adaptation tube) when section modulus Z is 9.03Cm ³ is 50A.

Equipment weight W1 is 100 kg, hardware weight W2 is 50 kg, height H is 200 cm, the bending moment M 294.2kN · cm, required section modulus Zn is 12.5 cm ^3, section modulus Z is when it is 16.26Cm ³ The specifications of the hanging pipe 12 (compatible pipe) are 65 A, the device weight W1 is 100 kg, the metal weight W2 is 65 kg, the height H is 250 cm, the bending moment M is 404.5 kN·cm, and the required section modulus Zn is 17. 2 cm ^3, specs hanging pipe 12 (adapted tube) when section modulus Z is 22.71Cm ³ is 80A.

The suspension pipe 12 with a specification of 50A (conforming pipe) has a meat pressure of 3.8 mm, a cross-sectional area of 6.7 cm ² , a unit weight empty pipe of 5.4 kg/m, and a suspension pipe 12 with a specification of 65A (conforming pipe). The pipe) has a wall pressure of 4.2 mm, a cross-sectional area of 9.5 cm ² , and a unit weight empty pipe of 7.5 kg/m. The suspension pipe 12 (compatible pipe) having a specification of 80 A has a wall pressure of 4.2 mm, a cross-sectional area of 11.2 cm ² , and a unit weight empty pipe of 8.9 kg/m.

The fixed plate 13 is made of a predetermined metal, has a predetermined thickness, and has a planar shape formed into a quadrangle. The planar shape and size of the fixed plate 13 are not particularly limited, and the planar shape of the fixed plate 13 can be another shape such as a circle or an ellipse, and the size can be appropriately determined. .. When the weight of the ceiling suspension device 11 is large, the fixing force of the horizontal support frame 17 is increased by increasing the size of the fixing plate 13, and the ceiling suspension device fixing device 10A (including the ceiling suspension device fixing device 10B is included). The rigidity and the mounting strength can be increased. The fixing plate 13 is fixed to the ceiling slab 19 using anchor bolts 23 (driving anchors or chemical anchors) embedded in the ceiling slab 19 (concrete) (see FIGS. 12 and 13), and in parallel with the ceiling slab 19. It extends horizontally.

Four peripheral holes (four corners) of the fixed plate 13 are formed with four through holes 24 through which the screw parts of the anchor bolts 23 are inserted. The screw portion of the anchor bolt 23 extending downward from the ceiling slab 19 is inserted into the through hole 24 formed in the peripheral portion of the fixing plate 13, and the nut 25 is screwed onto the screw portion of the anchor bolt 23 exposed downward from the insertion hole 24. By being attached, the fixed plate 13 is firmly fixed to the ceiling slab 19. As shown in FIGS. 4 and 13, the screw portion of the welding bolt 26 having no head is fixed to the central portion of the fixing plate 13 by welding. The screw portions of the welding bolts 26 are arranged in the central portion of the fixed plate 13 at equal intervals in the circumferential direction of the fixed plate 13, and extend downward from the central portion of the fixed plate 13.

The upper end flange 14 is made of a predetermined metal, has a predetermined thickness, and has a circular planar shape. The planar shape and size of the upper end flange 14 are not particularly limited, and the planar shape of the upper end flange 14 can be another shape such as a quadrangle or an ellipse, and the size thereof can be appropriately determined. When the weight of the ceiling suspension device 11 is large, the rigidity of the ceiling suspension device fixing device 10A (including the ceiling suspension device fixing device 10B) is increased by increasing the size of the upper end flange 14, and the mounting strength thereof is increased. be able to. The upper end flange 14 is located immediately below the fixed plate 13, is fixed to the fixed plate 13 using a welding bolt 26 welded to the central portion of the fixed plate 13, and extends in the horizontal direction in parallel with the fixed plate 13. There is. A fixing hole 27 that penetrates the flange 14 is formed in the center of the upper end flange 14. The fixing hole 27 is formed with a screw groove 28 into which the screw 22 formed in the upper end installation portion 20 of the suspension pipe 12 is screwed.

Four peripheral holes of the upper end flange 14 are formed with four through holes 29 through which the screw parts of the welding bolts 26 are inserted. The through holes 29 are arranged at equal intervals in the peripheral direction of the upper end flange 14 in the circumferential direction of the upper end flange 14. The screw portion of the welding bolt 26 extending downward from the central portion of the fixed plate 13 is inserted into the through hole 29 formed in the peripheral portion of the upper end flange 14, and the nut of the screw portion of the welding bolt 26 exposed downward from the through hole 29. The upper end flange 14 is firmly fixed to the fixing plate 13 by screwing 30. The screw 22 formed in the upper end installation portion 20 of the hanging pipe 12 is screwed into the screw groove 28 of the fixing hole 27 formed in the central portion of the upper end flange 14, and the upper end installation portion 20 of the hanging pipe 12 is attached to the upper end flange 14. It is firmly fixed.

The lower end first flange 15 is made of a predetermined metal, has a predetermined thickness, and is formed into a circular planar shape. There is no particular limitation on the planar shape or size of the lower end first flange 15, and the planar shape of the lower end first flange 15 can be another shape such as a quadrangle or an ellipse, and the size can be appropriately determined. You can The lower end first flange 15 is attached to the lower end support portion 21 of the hanging pipe 12 and extends in the horizontal direction. A screw hole 31 is formed at the center of the lower end first flange 15 so as to penetrate the flange 15. The screw hole 32 of the lower end first flange 15 is formed with a screw groove 32 into which the screw 22 formed in the lower end support portion 21 of the suspension pipe 12 is screwed.

Four insertion holes 34, through which the screw portions of the fixing bolts 33 are inserted, are formed in the peripheral edge portion of the lower end first flange 15. The insertion holes 34 are arranged at equal intervals in the peripheral direction of the lower end first flange 15 in the circumferential direction of the flange 15. The screw 22 formed in the lower end support portion 21 of the suspension pipe 12 is screwed into the screw groove 32 of the screw attachment hole 31 formed in the central portion of the lower end first flange 15, and the lower end is supported by the lower end support portion 21 of the suspension pipe 12. The first flange 15 is fixed (installed).

The lower end second flange 16 is made of a predetermined metal, has a predetermined thickness, and has a circular planar shape. The planar shape and size of the lower end second flange 16 are not particularly limited, and the planar shape of the lower end second flange 16 can be other shapes such as a quadrangle and an ellipse, and the size thereof can be appropriately determined. You can When the weight of the ceiling suspension device 11 is large, the rigidity of the ceiling suspension device fixing device 10A (including the ceiling suspension device fixing device 10B) is increased by increasing the sizes of the lower end first flange 15 and the lower end second flange 16. And the steady rest strength and the mounting strength can be enhanced. The lower end second flange 16 is separated from the lower end first flange 15 by a predetermined distance, is attached to the lower end support portion 21 of the hanging pipe 12, and extends in the horizontal direction in parallel with the lower end first flange 15. A screw hole 35 that penetrates the flange 16 is formed in the central portion of the lower end second flange 16. A screw groove 36 for screwing the screw 22 formed on the lower end support portion 21 of the suspension pipe 12 is formed in the screw hole 35 of the lower end second flange 16.

Four insertion holes 37 are formed in the peripheral edge portion of the lower end second flange 16 so as to insert the screw portion of the fixing bolt 33. The insertion holes 34 are arranged at equal intervals in the peripheral direction of the lower end second flange 16 in the circumferential direction of the flange 16. The screw 22 formed in the lower end support portion 21 of the suspension pipe 12 is screwed into the screw groove 36 of the screw attachment hole 35 formed in the central portion of the lower end second flange 16, and the lower end is supported by the lower end support portion 21 of the suspension member 12. The second flange 16 is fixed (installed).

FIG. 6 is a perspective view of the first to fourth horizontal support members 17a to 17d shown as an example, and FIG. 7 is a partially enlarged perspective view of the base end portions of the first to fourth horizontal support members 17a to 17d. Is. As shown in FIG. 6, a metal L-shaped angle member made of a predetermined metal is used for the horizontal support frame 17. The horizontal support frame 17 can be made of not only a metal L-shaped angle material but also materials of other shapes such as runners and rods.

As shown in FIG. 2, the horizontal support frame 17 includes a first horizontal support frame 17 a extending from the lower end support portion 21 of the suspension pipe 12 in the first horizontal direction (outward in the radial direction) and a lower end of the suspension pipe 12. A second horizontal support frame 17b extending from the support portion 21 in the second horizontal direction (outward in the radial direction) and a third horizontal support member 17b extending from the lower end support portion 21 of the hanging pipe 12 in the third horizontal direction (outward in the radial direction). The horizontal support frame 17c and the fourth horizontal support frame 17d extending from the lower end support portion 21 of the suspension pipe 12 in the fourth horizontal direction (outward in the radial direction) are formed.

The first horizontal support frame 17a is horizontally separated from the fourth horizontal support frame 17d by a predetermined angle. The second horizontal support frame 17b is horizontally separated from the first horizontal support frame 17a by a predetermined angle. The third horizontal support frame 17c is horizontally separated from the second horizontal support frame 17b by a predetermined angle. The fourth horizontal support frame 17d is horizontally separated from the third horizontal support frame 17c by a predetermined angle. The first horizontal support frame 17a to the fourth horizontal support frame 17d are positioned rotatably on the lower end support 21 of the hanging pipe 12 and horizontally outside the base end 38. It has a distal end portion 40 and an intermediate portion 39 extending between the proximal end portion 38 and the distal end portion 40.

First to fourth base end openings 41a (first base end holes) to fourth bases, which are long in the radial direction, are inserted into the base end portions 38 of the first to fourth horizontal support frames 17a to 17d and through which the threaded portions of the fixing bolts 33 are inserted. The end opening 41d (fourth base end hole) is bored. The first to fourth horizontal support members 17a to 17d are provided at the tip end portions 40 thereof with first distal ends which are long in the radial direction and which pass through the upper end portions 45 of the first vertical support member 18a to the fourth vertical support member 18d described later. The opening 42a (first tip hole) to the fourth tip opening 42d (fourth tip hole) are perforated.

The first to fourth horizontal support frames 17a to 17d have their base end portions 38 arranged between the lower end first flange 15 and the lower end second flange 16, and the base end portions 38 have their lower end first and second flanges. It is rotatably attached to the lower end support portion 21 of the suspension pipe 12 in a state of being sandwiched between 15 and 16. Insertion hole 34 formed in the lower end first flange 15, insertion hole 37 formed in the lower end second flange 16, and first to fourth base end openings formed in the first to fourth horizontal support frames 17a to 17d. The screw portion of the fixing bolt 33 is inserted into the screws 41 a to 41 d, and the double nut 43 is screwed to the screw portion of the fixing bolt 33 exposed upward from the insertion hole 34 of the lower end first flange 15, whereby the first nut The base end portions 38 of the fourth horizontal support frames 17a to 17d are fixed to the lower end first flange 15 and the lower end second flange 16. As for the 1st-4th horizontal support frame 17a-17d, the front-end|tip part 38 rotates, and the front-end|tip part 40 turns horizontally (around the suspension pipe 12).

The positions of the fixing bolts 33 with respect to the first to fourth base end openings 41a to 41d that are long in the radial direction of the first to fourth horizontal support frames 17a to 17d are horizontal inward (radial outward) and horizontal inward. (Inward in the radial direction), by adjusting the fixing position of the fixing bolt 33 with respect to the first to fourth base end openings 41a to 41d of the first to fourth horizontal support frames 17a to 17d, It is possible to change the extension dimension of the first to fourth horizontal support members 17a to 17d in the horizontal direction (radial direction) from the lower end support portion 21 of the hanging pipe 12.

Specifically, the fixing position of the fixing bolt 33 is set inward in the radial direction of the first to fourth base end openings 41a to 41d (of the lower end support portion 21 of the hanging pipe 12 of the first to fourth base end openings 41a to 41d). Side), the extension dimension of the first to fourth horizontal support frames 17a to 17d from the lower end support portion 21 of the hanging pipe 12 outward in the horizontal direction (outward in the radial direction) can be increased. By suspending the fixing position of the fixing bolt 33 outward in the radial direction of the first to fourth base end openings 41a to 41d (on the side of the tip end 40 of the first to fourth horizontal support frames 17a to 17d). It is possible to shorten the extension dimension of the first to fourth horizontal support members 17a to 17d from the lower end support portion 21 of the pipe 12 outward in the horizontal direction (outward in the radial direction).

FIG. 8 is a perspective view of the first to fourth vertical support members 18a to 18d shown as an example, and FIG. 9 is a front end portion 40 of the first to fourth horizontal support members 17a to 17d and the first to the first. 4 is a partially enlarged perspective view of an upper end portion 45 of four vertical support frames 18a to 18d. FIG. 10 is a top view of the first and second horizontal support members 17a to 17d attached to the first and second lower flanges 16 and 16, and FIG. It is an expansion perspective view of the lower end part 47 of support frame materials 18a-18d.

As shown in FIG. 2, the vertical support frame 18 includes a first vertical support frame 18a extending vertically from a tip 40 of a first horizontal support frame 17a and a tip 40 of a second horizontal support frame 17b. From the second vertical support frame 18b extending vertically from the tip end 40 of the third horizontal support frame 17c, the third vertical support frame 18c extending vertically from the tip end 40 of the fourth horizontal support frame 17d. And a fourth vertical support member 18d extending in the vertical direction from. As shown in FIG. 10, each of the first to fourth vertical support frames 18a to 18d is made of a predetermined metal and is formed into a columnar rod shape that is long in the vertical direction. A screw 44 is formed over the entire area of the vertical support frames 18a to 18d.

The first to fourth vertical support frames 18a to 18d include an upper end portion 45 installed at a tip end portion 40 of the first to fourth horizontal support frame members 17a to 17d and a lower end portion 47 located below the upper end portion 45. And an intermediate portion 46 extending between the upper end portion 45 and the lower end portion 47. The first to fourth vertical support frames 18a to 18d are provided with first to fourth tip openings 42a to 42d whose upper end portions 45 are perforated in the tip portions 40 of the first to fourth horizontal support frame members 17a to 17d. The first to fourth horizontal support racks are inserted by the double nut 48 and the nut 49 screwed to the screw 44 of the upper end portion 45 so as to sandwich the tip end portions 40 of the first to fourth horizontal support rack members 17a to 17d. It is being fixed to tip part 40 of materials 17a-17d.

The positions of the upper ends of the first to fourth vertical support members 18a to 18d with respect to the first to fourth tip openings 42a to 42d that are long in the radial direction of the first to fourth horizontal support members 17a to 17d are horizontally outward. The first movable member is movable inward (inward in the radial direction) and inward in the horizontal direction (inward in the radial direction), and is first with respect to the first to fourth tip openings 42a to 42d of the first to fourth horizontal support frames 17a to 17d. -The 1st-4th vertical support frame 18a in the tip part 40 of the 1st-4th horizontal support frame 17a-17d is adjusted by adjusting the fixed position of the upper end part 45 of the 4th vertical support frame 18a-18d. The horizontal installation position of ~18d can be changed.

Specifically, the fixing positions of the upper ends 45 of the first to fourth vertical support members 18a to 18d are set to the diameters of the first to fourth tip openings 42a to 42d of the first to fourth horizontal support members 17a to 17d. Inward in the direction (on the side of the base end portion 38 of the first to fourth horizontal support members 17a to 17d), the first to fourth vertical support members 18a to 18a from the lower end support portion 21 of the suspension pipe 12 are provided. The horizontal (radial) extension dimension of 18d (horizontal (radial) spacing between the lower end support portion 21 of the hanging pipe 12 and the first to fourth vertical support members 18a to 18d) is shortened. The fixing positions of the upper ends 45 of the first to fourth vertical support frames 18a to 18d can be set to the diameters of the first to fourth tip openings 42a to 42d of the first to fourth horizontal support frames 17a to 17d. Direction outward (on the side of the tips of the first to fourth horizontal support members 17a to 17d), the horizontal direction of the first to fourth vertical support members 18a to 18d from the lower end support portion 21 of the hanging pipe 12. The extension dimension in the direction (radial direction) (horizontal direction (radial direction) separation dimension between the lower end support portion 21 of the hanging pipe 12 and the first to fourth vertical support members 18a to 18d) can be lengthened. it can.

As shown in FIG. 11, the first to fourth vertical support frames 18a to 18d are the first hanging metal fitting 50a to the fourth hanging metal fitting 50d whose lower end portion 47 projects outward from the side surface of the ceiling hanging device 11. The first to fourth hanging metal fittings 50a to 50d are inserted into the insertion hole 51 and are fastened to the screw 44 of the lower end portion 47 so as to sandwich the first to fourth hanging metal fittings 50a to 50d by the nut 52 and the double nut 53. It is fixed to. When the ceiling suspension device 11 generates vibration due to operation such as an air conditioner or a blower, a vibration proof rubber (not shown) is attached between the first to fourth suspension fittings 50a to 50d and the double nut 53.

The screwing positions of the nut 52 and the double nut 53 with respect to the lower ends 47 of the first to fourth vertical support members 18a to 18d are movable vertically upward and vertically downward, and the first to fourth vertical supports By adjusting the screwing positions of the nut 52 and the double nut 53 with respect to the lower end portion 47 of the frame members 18a to 18d, the first to fourth vertical support frame members 18a to 18d of the ceiling suspension device 11 at the lower end portion 47 of the vertical suspension members 18a to 18d. The vertical locking positions of the first to fourth suspension fittings 50a to 50d can be changed.

Specifically, the screwing positions of the nut 52 and the double nut 53 with respect to the lower end portions 47 of the first to fourth vertical support members 18a to 18d are set vertically upward (first to fourth vertical support members 18a to 18d). To the upper end portion 45 side) of the first to fourth vertical support frames 18a to 18d at the lower end portion 47 of the ceiling suspension device 11 in the vertical direction of the first to fourth hanging metal fittings 50a to 50d. The stop position can be raised, and the screwing positions of the nut 52 and the double nut 53 with respect to the lower end portions 47 of the first to fourth vertical support frames 18a to 18d are vertically downward (first to fourth vertical support frame members). 18a to 18d) to move vertically to the vertical direction of the first to fourth hanging fittings 50a to 50d of the ceiling suspension device 11 at the lower end portion 47 of the first to fourth vertical support frames 18a to 18d. The locking position can be lowered.

The ceiling suspension device fixing device 10A (including the ceiling suspension device fixing device 10B) is manufactured in advance in a safe place such as a manufacturing plant or a floor surface, and immediately before a construction process of attaching the ceiling suspension device 11 to the ceiling slab 19. It is transported to the construction site where the ceiling-mounted equipment is installed. In the manufacturing plant, the base end portions 38 of the first to fourth horizontal support frames 17a to 17d are arranged between the lower end first and second flanges 15 and 16, and the lower end first and second flanges 15 and 16 are The screw portion of the fixing bolt 33 is inserted into the insertion holes 34 and 37 and the first to fourth base end holes 41a to 41d of the first to fourth horizontal support frames 17a to 17d, and the screw portion of the fixing bolt 33 is inserted into the screw portion. The heavy nut 43 is screwed, and the first to fourth horizontal support frames 17a to 17d are attached to the lower end first and second flanges 15 and 16 by the fixing bolt 33.

Therefore, in the ceiling suspension device fixing device 10A before transportation, as shown in FIG. 10, the first to fourth horizontal support members 17a to 17d are attached to the lower end first and second flanges 15 and 16, and further, the first -The 4th horizontal support frame materials 17a-17d are conveyed to a construction site in the state where it was folded. In FIG. 10, the first horizontal support frame 17a and the fourth horizontal support frame 17d are parallel to each other, and the second horizontal support frame 17b and the third horizontal support frame 17c are parallel to each other. The hanging pipe 12, the fixed plate 13, the upper end flange 14, and the first to fourth vertical support frames 18a to 18d are individually transported to the construction site.

In addition, without attaching the 1st-4th horizontal support frame 17a-17d to the lower end 1st and 2nd flanges 15 and 16, the hanging pipe 12, the fixed plate 13, the upper end flange 14, the lower end 1st, and 2nd flange 15 are attached. , 16, the first to fourth horizontal support members 17a to 17d, and the first to fourth vertical support members 18a to 18d can be individually transported to the construction site and assembled in the state of FIG. 10 at the site. Also, the lower end first and second flanges 15 and 16 and the first to fourth horizontal supporting members 17a to 17d are attached to the lower end supporting portion 21 of the hanging pipe 12, and the first to fourth horizontal supporting members 17a to 17a. It is also possible to transport it to the construction site with the upper end portion 45 of the first to fourth vertical support frames 18a to 18d attached to the tip end portion 40 of 17d.

Adjustment of the separation angle of the first to fourth horizontal support members 17a to 17d and adjustment of the horizontal extension dimension of the first to fourth horizontal support members 17a to 17d from the lower end support portion 21 of the suspension pipe 12, Adjustment of horizontal extension dimensions of the first to fourth vertical support members 18a to 18d from the lower end support portion 21 of the hanging pipe 12, and the ceiling at the lower end portion 47 of the first to fourth vertical support members 18a to 18d. The adjustment of the vertical locking positions of the first to fourth hanging fittings 50a to 50d of the hanging device 11 (fine adjustment of the mounting position of the ceiling hanging device 11) is performed at the construction site.

FIG. 12 is a perspective view of the first to fourth horizontal support frames 17a to 17d shown as another example. The first to fourth horizontal support frames 17a to 17d shown in FIG. 12 have a plurality of horizontally long openings 56 (holes) arranged at equal intervals between the base end portion 38 and the tip end portion 40 thereof. .. The fixing bolt 33 is inserted into any one of the openings 56 formed in the first to fourth horizontal support members 17a to 17d, and the upper end portions of the first to fourth vertical support members 18a to 18d. 45 is inserted into any one of the openings 56 formed in the first to fourth horizontal support members 17a to 17d.

While inserting the fixing bolt 33 into one of the openings 56, the position of the fixing bolt 33 is moved horizontally outward (radially outward) and horizontally inward (radially inward) in the predetermined opening 56. By adjusting the fixing positions of the fixing bolts 33 with respect to the predetermined openings 56 of the first to fourth horizontal supporting members 17a to 17d, the first to fourth horizontal supporting members from the lower end supporting portion 21 of the hanging pipe 12 are adjusted. It is possible to change the extension dimension of 17a to 17d in the horizontal direction (radial direction).

Positions of the upper ends 45 of the first to fourth vertical support members 18a to 18d in a predetermined opening 56 while inserting the upper end portions 45 of the first to fourth vertical support members 18a to 18d into the openings 56. To the outer side in the horizontal direction (outer side in the radial direction) and the inner side in the horizontal direction (inward in the radial direction), and the first to fourth positions with respect to the predetermined openings 56 of the first to fourth horizontal support frames 17a to 17d. By adjusting the fixing position of the upper end portion 45 of the vertical support frame members 18a to 18d, the first to fourth horizontal support frame members 18a to 18d are installed horizontally in the first to fourth horizontal support frame members 17a to 17d. The position can be changed.

A ceiling-mounted device fixing device 10A (10B including the ceiling-mounted device fixing device) using the first to fourth horizontal supporting members 17a to 17d of FIG. 12 is formed on the first to fourth horizontal supporting members 17a to 17d. It is possible to move the first to fourth horizontal support members 17a to 17d horizontally outward and horizontally inward at the lower end support portion 21 of the hanging pipe member 12 by using any of the formed openings 56. Therefore, the horizontal extension dimensions of the horizontal support frames 17a to 17d from the lower end support portion 21 of the suspension pipe 12 can be changed according to the size, shape, and vertical and horizontal dimensions of the ceiling suspension device 11. By using the suspension device fixing device 10A, various ceiling suspension devices 11 having different sizes, shapes, and vertical and horizontal dimensions can be installed on the ceiling slab 19 (structure).

A ceiling-mounted device fixing device 10A (10B including the ceiling-mounted device fixing device) using the first to fourth horizontal supporting members 17a to 17d of FIG. 12 is formed on the first to fourth horizontal supporting members 17a to 17d. The upper end portion 45 of each of the first to fourth vertical support members 18a to 18d is horizontally and outwardly in the first to fourth horizontal support members 17a to 17d by using any of the openings 56 formed. The vertical support members 18a to 18d are installed horizontally in the first to fourth horizontal support members 17a to 17d in accordance with the size and shape of the ceiling suspension device 11 and the vertical and horizontal dimensions thereof. The position can be changed, and various ceiling suspension devices 11 having different sizes, shapes, and vertical and horizontal dimensions can be installed on the ceiling slab 19 (structure) using the ceiling suspension device fixing device 10A.

FIG. 13 is a side view of the ceiling suspension device fixing device 10A shown with the ceiling suspension device 11 attached, and FIG. 14 is a suspension pipe 12 (suspension member) attached to the ceiling slab 19, a fixing plate 13, and an upper end. It is a partial expanded sectional view with the flange 14. An example of the procedure for installing the ceiling suspension device 11 on the ceiling slab 19 using the ceiling suspension device fixing device 10A is as follows.

First, the upper ends 45 of the first to fourth vertical support members 18a to 18d are inserted into the first to fourth tip holes 42a to 42d of the first to fourth horizontal support members 17a to 17d, respectively. The fourth vertical support members 18a to 18d are attached to the tips of the first to fourth horizontal support members 17a to 17d by the double nut 48 and the nut 49. Next, the first to fourth horizontal support members 17a to 17d installed between the lower end first and second flanges 15 and 16 extend in the horizontal direction (radial direction) from the lower end support portion 21 of the hanging pipe 12. The spacing angle of the first to fourth horizontal support members 17a to 17d is adjusted while adjusting the projecting size.

The positions of the fixing bolts 33 with respect to the first to first base end openings 41a to 41d of the first to fourth horizontal support frames 17a to 17d are set to be horizontally outward (radially outward) or horizontally inwardly (radially inward). Direction) to adjust the fixing position of the fixing bolt 33 with respect to the first to first base end openings 41a to 41d, and the lower end support portion 21 of the hanging pipe 12 according to the size, shape, and vertical and horizontal dimensions of the ceiling suspension device 11. The horizontal dimension (radial direction) of the first to fourth horizontal support frames 17a to 17d is adjusted. The base end portions 38 of the first to fourth horizontal support frame members 17a to 17d are rotated, and the first to fourth horizontal support frame members are aligned with the positions of the first to fourth suspension fittings 50a to 50d of the ceiling suspension device 11. After adjusting the turning angle of 17a to 17d, by further tightening the double nut 43 screwed to the screw portion of the fixing bolt 33 exposed upward from the insertion hole 34 of the lower end first flange 15, the first to third The base end portions 38 of the fourth horizontal support frames 17a to 17d are firmly fixed to the lower end first and second flanges 15 and 16.

The ceiling suspension device fixing device 10A (10B including the ceiling suspension device fixing device) is configured such that the base end portions 38 of the first to fourth horizontal support frames 17a to 17d are horizontally outward at the lower end support portion 21 of the suspension member 11 or By moving inward in the horizontal direction, the horizontal extension dimensions of the horizontal support frames 17a to 17d from the lower end support portion 21 of the suspension member 12 can be adjusted according to the size and shape of the ceiling suspension device 11 and vertical and horizontal dimensions. This can be changed, and various ceiling suspension devices 11 having different sizes, shapes, and vertical and horizontal dimensions can be installed on the ceiling slab 19 using the ceiling suspension device fixing device 10A. Further, the position of the ceiling suspension device 11 can be adjusted in the horizontal direction, and the position of the ceiling suspension device 11 can be adjusted to the opening position of the ceiling board.

The ceiling suspension device fixing device 10A (10B including the ceiling suspension device fixing device) makes the size of the ceiling suspension device 11 by rotating the first to fourth horizontal support frames 17a to 17d around the suspension member 12. The turning angles of the first to fourth horizontal support frames 17a to 17d can be changed according to the shape and the vertical and horizontal dimensions, and the positions of the first to fourth hanging fittings 50a to 50d of the ceiling suspension device 11 can be adjusted. The positions of the first to fourth vertical support frames 18a to 18d can be changed, and the ceiling suspension device 11 of various shapes can be installed on the ceiling slab 19 using the ceiling suspension device fixing device 10A.

After fixing the first to fourth horizontal support frames 17a to 17d to the lower end first and second flanges 15 and 16, the fixing plate 13 is installed on the ceiling slab 19. The screw portion of the anchor bolt 23 extending downward from the ceiling slab 19 is inserted into the through holes 24 formed at the four corners of the fixing plate 13, and the nut 25 is screwed onto the screw portion of the anchor bolt 23 exposed downward from the through hole 24. Then, the fixing plate 13 is firmly fixed to the ceiling slab 19.

Next, the upper end flange 14 is installed on the fixed plate 13. The screw portion of the welding bolt 26 extending downward from the central portion of the fixed plate 13 is inserted into the through hole 29 formed in the peripheral portion of the upper end flange 14, and the nut 30 is attached to the screw portion of the welding bolt 26 extending downward from the through hole 29. Is fastened (fastened) to firmly fix the upper end flange 14 to the fixing plate 13. After fixing the upper end flange 14 to the fixing plate 13, the screw 22 made in the upper end installation portion 20 of the hanging pipe 12 is screwed into the screw groove 28 of the fixing hole 27 formed in the central portion of the upper end flange 14 (additionally). Then, the upper end installation portion 20 of the hanging pipe 12 is firmly fixed to the upper end flange 14.

After fixing the upper end installation portion 20 of the hanging pipe 12 to the upper end flange 14, the nut 52 is screwed to the lower end portions 47 (screws 44) of the first to fourth vertical support members 18a to 18d. Next, the ceiling suspension device 11 is arranged immediately below the ceiling suspension device fixing device 10A, and the first to fourth vertical support frames 18a are inserted into the insertion holes 51 of the first to fourth suspension fittings 50a to 50d of the ceiling suspension device 11. 18d is inserted through the lower end portion 47 of the first to fourth suspension fittings 50a to 50d, and the double nut 53 is attached to the lower end portion 47 (screw 44) of the first to fourth vertical support frames 18a to 18d. Screw on. By mounting the double nut 53 on the lower end portions 47 of the first to fourth vertical support frames 18a to 18d, the ceiling suspension device 11 is supported by the ceiling suspension device fixing device 10A, and the ceiling suspension device 11 is mounted on the ceiling slab. It will be installed at 19.

When the lower end portion 47 of the first to fourth vertical support members 18a to 18d is inserted into the first to fourth hanging metal fittings 50a to 50d of the ceiling suspension device 11, the size, the shape, and the vertical and horizontal dimensions of the ceiling suspension device 11 are matched. As described above, the positions of the upper ends 45 of the first to fourth vertical support members 18a to 18d with respect to the first to fourth tip holes 42a to 42d of the first to fourth horizontal support members 17a to 17d are outside in the horizontal direction. Move slightly inward (outward in the radial direction) or inward in the horizontal direction (inward in the radial direction). The ceiling suspension device fixing device 10</b>A includes the first to fourth suspension fittings 50</b>A to 50</b>D of the ceiling suspension device 11 when the lower ends 47 of the first to fourth vertical support frames 18 a to 18 d are inserted. The fixing positions of the upper ends 45 of the first to fourth vertical support frames 18a to 18d with respect to the first to fourth tip holes 42a to 42d of the horizontal support frames 17a to 17d are adjusted, and the first to fourth horizontal support frames are adjusted. The horizontal installation positions of the first to fourth vertical support frames 18a to 18d at the tip portions 40 of the materials 17a to 17d are changed (finely adjusted).

In the ceiling suspension device fixing device 10A, the upper ends 45 of the first to fourth vertical support frames 18a to 18d are horizontally outward and horizontally inward at the tip ends 40 of the first to fourth horizontal support frames 17a to 17d. By moving to the one direction, the vertical direction of the vertical support members 18a to 18d at the tip end portions 40 of the first to fourth horizontal support members 17a to 17d in the horizontal direction according to the size and shape of the ceiling suspension device 11 and the vertical and horizontal dimensions. The installation position can be changed, and various ceiling mount devices 11 having different sizes, shapes, and vertical and horizontal dimensions can be installed on the ceiling slab 19 (structure) using the ceiling mount device fixture 10A. Further, the position of the ceiling suspension device 11 can be adjusted in the horizontal direction, and the position of the ceiling suspension device 11 can be adjusted to a predetermined position (for example, the opening position of the ceiling board).

After the ceiling suspension device 11 is installed on the ceiling suspension device fixing device 10A, the nut 52 and the double nut 53 screwed to the lower end portions 47 of the first to fourth vertical support members 18a to 18d are rotated clockwise or counterclockwise. Rotate clockwise to adjust the screwing positions of the nut 52 and the double nut 53 with respect to the lower end portions 47 (screws 44) of the first to fourth vertical support frames 18a to 18d, and to adjust the first to fourth vertical supports. The vertical locking positions of the first to fourth suspension fittings 50a to 50d of the ceiling suspension device 11 at the lower ends 47 of the frame members 18a to 18d are changed.

The ceiling suspension device fixing device 10A changes the vertical locking position of the hanging metal fittings 50a to 50d of the ceiling suspension device 11 at the lower end portions 47 of the first to fourth vertical support frames 18a to 18d, thereby changing the ceiling slab. The inclination of the ceiling suspension device 11 with respect to 19 can be corrected, the horizontal state of the ceiling suspension device 11 with respect to the ceiling slab 10 can be ensured, and the ceiling suspension device 11 is installed horizontally with respect to the ceiling slab 19. You can Further, the position of the ceiling suspension device 11 can be adjusted in the vertical direction, and the position of the ceiling suspension device 11 can be adjusted to a predetermined position (for example, the opening position of the ceiling board).

After changing the vertical locking position of the first to fourth suspension fittings 50a to 50d of the ceiling suspension device 11 in the lower end portion 47 of the first to fourth vertical support frames 18a to 18d, the first to fourth vertical The double nuts 48 and the nuts 49 screwed to the upper ends 45 (screws 44) of the support frames 18a to 18d are tightened, and the lower nuts 47 of the first to fourth vertical support frames 18a to 18d are screwed. The tightened nut 52 and double nut 53 are tightened, and the first to fourth vertical support members 18a to 18d are firmly fixed to the tip portions 40 of the first to fourth horizontal support members 17a to 17d. The attachment of the ceiling suspension device 11 to the ceiling suspension device fixing device 10A is completed. After that, a ceiling finishing board is installed and a face cover is attached to the ceiling suspension device 11.

The ceiling suspension device fixing device 10A uses the fixing plate 13 and the upper end flange 14 to firmly fix the upper end installation portion 20 of the suspension pipe 12 (suspension member) to the ceiling slab 19, and to fix the first to fourth horizontal support frames. By locking the lower end portions 47 of the first to fourth vertical support frames 18a to 18d installed on the tip end portions 40 of the materials 17a to 17d to the first to fourth hanging metal fittings 50a to 50d of the ceiling suspension device 11. The ceiling suspension device 11 can be hung securely on the ceiling slab 19 (structure). The ceiling suspension device fixing device 10A can enable the steady rest of the ceiling suspension device 11 at the time of an earthquake by an earthquake resistant design for satisfying the design seismic intensity.

The ceiling-mounted device fixing device 10A can be manufactured in a safe place such as a factory or floor surface of the ceiling-mounted device fixing device while performing earthquake resistance calculation in advance, and the ceiling-mounted device fixing device can be efficiently manufactured in a short time. be able to. In the ceiling suspension device fixing device 10A, the fixing plate 13 can be installed on the ceiling slab 19 in advance, and the hanging pipe 12 (hanging member) can be attached after that, and the hanging pipe 12 can be easily installed on the ceiling slab 19. The ceiling suspension device 11 can be efficiently installed in a short time in the ceiling slab 19 by using the first to fourth horizontal support members 17a to 17d and the first to fourth vertical support members 18a to 18d. Therefore, it is possible to reduce the time and labor required for the installation work of the ceiling suspension device 11.

The ceiling suspension device fixing device 10</b>A can firmly fix the suspension pipe 12 (suspension member) to the ceiling slab 19 by using the fixing plate 13 and the upper end flange 14, and the suspension pipe 12 is unprepared from the ceiling slab 19. Therefore, it is possible to prevent an accidental drop accident of the ceiling suspension device 11. In the ceiling suspension device fixing device 10A, the first to fourth horizontal support frames 17a to 17d and the first to fourth vertical support frames 18a to 18d do not occupy a large space in the space above the ceiling suspension device 11, A large space is secured above the ceiling suspension device 11, the work space of the worker can be increased in the space above the ceiling suspension device 11, and the worker can widely use the work space. The upper space of 11 can be used effectively and safely.

FIG. 15 is a side view of another example of the ceiling suspension device fixing device 10B shown with the ceiling suspension device 11 attached, and FIG. 16 is an upper end installation portion 20 of the suspension pipe 12, the fixing plate 13, and the upper end flange 14. It is a partial expanded sectional view with. FIG. 17 is a partially enlarged cross-sectional view of the lower end support portion 21 of the hanging pipe 12 and the lower end first flange 15.

15 is different from that of FIG. 1 in that the upper end installation portion 20 of the suspension pipe 12 (suspension member) is welded and fixed to the fixing hole 27 of the upper end flange 14, that is, the suspension pipe 12 shown in FIG. The lower end first flange 15 is welded and fixed to the lower end support portion 21, and the upper end reinforcing ribs 54 and the lower end reinforcing ribs 55 are provided. Since other configurations of the ceiling suspension device fixing device 10B are the same as those of the ceiling suspension device fixing device 10A of FIG. 1, the same reference numerals as those of the ceiling suspension device fixing device 10A of FIG. By using the description of the ceiling suspension device fixing device 10A, detailed description of the configuration of the ceiling suspension device fixing device 10B is omitted. As a general rule, the seismic resistance calculation without the upper end reinforcing ribs 54 and the lower end reinforcing ribs 55 is adopted for the hanging pipe 12, and it is assumed that the hanging pipe 12 in FIG. In that case, the hanging pipe 12 having the reinforcing ribs 54 and 55 of FIG. 15 is used.

The ceiling suspension device fixing device 10B includes a hanging pipe 12 (a hanging member) extending in the vertical direction, a fixing plate 13 and an upper end flange 14 extending in the horizontal direction, a lower end first flange 15 and a lower end second flange 16 extending in the horizontal direction. , First to fourth horizontal support frames 17a to 17d extending in the horizontal direction, first to fourth vertical support frames 18a to 18d extending in the vertical direction, four upper end reinforcing ribs 54 and four lower end reinforcements And ribs 55. The fixing plate 13, the lower end second flange 16, the first to fourth horizontal supporting members 17a to 17d, and the first to fourth vertical supporting members 18a to 18d are the same as those of the ceiling suspension device fixing device 10A of FIG. Is. As the first to fourth horizontal support frames 17a to 17d, that shown in FIG. 12 can be used.

In the ceiling suspension device fixing device 10B, the screw 22 is not formed in the upper end installation portion 20 of the suspension pipe 12, and the upper end installation portion 20 of the suspension pipe 12 is inserted into the fixing hole 27 formed in the central portion of the upper end flange 14. The upper end installation portion 20 of the hanging pipe 12 is fixed to the fixing hole 27 of the upper end flange 14 by welding. The upper end reinforcing ribs 54 are made of a predetermined metal and extend vertically downward from the upper end flange 14. The upper end reinforcing ribs 54 are arranged at equal intervals in the circumferential direction of the hanging pipe 12. The tops of the upper end reinforcing ribs 54 are fixed to the upper end flange 14 by welding, and the side parts of the upper end reinforcing ribs 54 are fixed to the peripheral surface of the hanging pipe 12 by welding.

The lower end support portion 21 of the hanging pipe 12 is screwed into a screw hole 31 drilled in the central portion of the lower end first flange 15, and the lower end support portion 21 of the hanging pipe 12 is welded to the lower end first flange 15. It is fixed at 31. The lower end reinforcing ribs 55 are made of a predetermined metal and extend vertically upward from the lower end first flange 15. The lower end reinforcing ribs 55 are arranged at equal intervals in the circumferential direction of the hanging pipe 15. The bottoms of the lower end reinforcing ribs 55 are fixed to the lower end first flange 15 by welding, and the side parts of the lower end reinforcing ribs 55 are fixed to the peripheral surface of the hanging pipe 12 by welding.

The procedure for installing the ceiling suspension device 11 on the ceiling slab 19 using the ceiling suspension device fixing device 10B is as follows: the first to fourth horizontal support frame members 17a installed between the lower end first and second flanges 15 and 16. .About.17d of the hanging pipe 12 from the lower end support portion 21 in the horizontal direction (radial direction) is adjusted, while adjusting the separation angle (turning angle) of the first to fourth horizontal support members 17a to 17d. The first to fourth horizontal support frames 17a to 17d are fixed to the lower end first and second flanges 15 and 16.

The fixing plate 13 is firmly fixed (installed) to the ceiling slab 19 by screwing (re-tightening) the nut 25 onto the screw portion of the anchor bolt 23 exposed downward from the through hole 24, and then downward from the through hole 29. The nut 30 is screwed (tightened) to the threaded portion of the extending welding bolt 26 to firmly fix (install) the upper end flange 14 to the fixing plate 13.

Next, the ceiling suspension device 11 is arranged immediately below the ceiling suspension device fixing device 10B, and the first to fourth vertical support frames 18a are inserted into the insertion holes 51 of the first to fourth suspension fittings 50a to 50d of the ceiling suspension device 11. ~ 18d is inserted through the lower end portion 47, and the double nut 53 is screwed to the lower end portions 47 of the first to fourth vertical support frames 18a to 18d exposed downward from the first to fourth hanging fittings 50a to 50d. .. While adjusting the screwing positions of the nut 52 and the double nut 53 with respect to the lower end portion 47 of the first to fourth vertical support members 18a to 18d, and tightening the nut 52 and the double nut 53, the first to the fourth. The double nuts 48 and the nuts 49 screwed to the upper ends 45 of the vertical support frames 18a to 18d are tightened, and the first to fourth vertical support frames 18a to 18d are attached to the first to fourth horizontal support frames. It is firmly fixed to the tip end portion 40 of 17a to 17d, and the attachment of the ceiling suspension device 11 to the ceiling suspension device fixing device 10B is completed.

The ceiling suspension device fixing device 10B shown in FIG. 15 has the following effects in addition to the effects of the ceiling suspension device fixing device 10A of FIG. The ceiling suspension device fixing device 10B has strength and rigidity of the joint portion between the hanging pipe 12 and the fixed flange 14 by the upper end reinforcing ribs 54 fixed to the upper end installation portion 20 of the hanging pipe 12 (hanging member) and the fixed flange 14. Since the lower end reinforcing ribs 55 fixed to the lower end support portion 21 and the lower end flange 15 of the hanging pipe 12 increase the strength and rigidity of the joint portion between the hanging pipe 12 and the lower end flange 15, the hanging pipe 12 is lifted. Even if the load of the suspension equipment 11 or a vibration force due to an earthquake is applied, the suspension pipe 12 is not shaken and damaged or damaged, and the ceiling slab 19 of the ceiling suspension equipment 11 (structure ) Can be prevented from accidental fall accident.

10A Ceiling-suspension equipment fixing device 10B Ceiling-suspension equipment fixing device 11 Ceiling-suspension device 12 Suspension pipe (suspension member)
13 fixed plate 14 upper end flange 15 lower end first flange 16 lower end second flange 17 horizontal support frame 17a first horizontal support frame 17b second horizontal support frame 17c third horizontal support frame 17d fourth horizontal support frame 18 Vertical support frame 18a First vertical support frame 18b Second vertical support frame 18c Third vertical support frame 18d Fourth vertical support frame 19 Ceiling slab 20 Upper end installation part 21 Lower end support 22 Screw 23 Anchor bolt 24 Through Hole 25 Nut 26 Welding bolt 27 Fixing hole 28 Screw groove 29 Through hole 30 Nut 31 Screwing hole 32 Screw groove 33 Fixing bolt 34 Inserting hole 35 Screwing hole 36 Screw groove 37 Inserting hole 38 Base end 39 Intermediate part 40 Tip part 41a First base end opening (first base end hole)
41b Second base end opening (second base end hole)
41c Third base end opening (third base end hole)
41d Fourth base end opening (fourth base end hole)
42a First tip opening (first tip hole)
42b Second tip opening (second tip hole)
43c Third tip opening (third tip hole)
43d Fourth tip opening (fourth tip hole)
43 double nut 44 screw 45 upper end part 46 middle part 47 lower end part 48 double nut 49 nut 50a first hanging metal fitting 50b second hanging metal fitting 50c third hanging metal fitting 50d fourth hanging metal fitting 51 insertion hole 52 nut 53 double nut 54 Upper Reinforcing Ribs 55 Lower Reinforcing Ribs 56 Openings (Hole)

Claims (11)

In the ceiling suspension device fixing device that fixes the ceiling suspension device in a suspended state,
The suspending device fixing device includes a suspending member that has a top end installation portion that extends in a vertical direction and is installed on a structure and a bottom end support portion that is located below the top end installation portion, and a bottom end support portion of the suspension member. And a horizontal support frame having a base end extending horizontally from the base and installed on a lower end support of the suspension member, and a tip located horizontally outside the base end, and the horizontal support frame. An upper end portion extending vertically from the front end portion of the horizontal support frame and installed at the front end portion of the horizontal support frame, and a lower end portion that is located below the upper end portion and is locked by a hanging metal fitting of the ceiling suspension device. A fixture for suspending from a ceiling, characterized in that it is formed from a vertical support frame having the same. The horizontal support frame is a first horizontal support frame that extends in a first horizontal direction from a lower end support portion of the hanging member, and a second horizontal frame that is separated from the first horizontal support frame by a predetermined angle in the horizontal direction. A second horizontal support frame extending in the direction, a third horizontal support frame extending in the third horizontal direction at a predetermined horizontal distance from the second horizontal support frame, and a third horizontal support frame A first horizontal support frame, which is formed of a fourth horizontal support frame extending in the fourth horizontal direction at a predetermined distance in the horizontal direction, and the vertical support frame extends in the vertical direction from the tip of the first horizontal support frame. A vertical support frame, a second vertical support frame extending vertically from the tip of the second horizontal support frame, and a third vertical support frame extending vertically from the tip of the third horizontal support frame. The ceiling suspension device fixing device according to claim 1, which is formed from a fourth vertical support frame member extending in a vertical direction from a tip portion of the fourth horizontal support frame member. The ceiling suspension device fixing device according to claim 2, wherein the first to fourth horizontal support members are rotatable around the base members of the horizontal support members in the circumferential direction of the suspension member. The first to fourth horizontal support members are such that the base end portions of the horizontal support members are movable horizontally outward and horizontally inward at the lower end support portion of the suspension member. The ceiling suspension device fixing device according to claim 2 or 3, wherein the horizontal extension dimension of the horizontal support frame from the lower end support portion can be changed. In the first to fourth vertical support frames, the upper ends of the vertical support frames can be moved horizontally outward and horizontally inward at the tips of the first to fourth horizontal support frames. The ceiling suspension device fixing device according to any one of claims 2 to 4, wherein the horizontal installation positions of the vertical support members at the tip portions of the first to fourth horizontal support members can be changed. The first to fourth horizontal support frames have a plurality of horizontally long openings lined up at equal intervals between the base end portion and the tip end portion thereof, according to any one of claims 2 to 5. Ceiling mount device fixing device. At the lower end portions of the first to fourth vertical support frame members, the hanging metal fittings of the ceiling suspension device can move vertically upward and vertically downward, and the lower end portions of the first to fourth vertical support frame members. 7. The ceiling suspension device fixing device according to any one of claims 2 to 6, wherein a vertical locking position of the suspension fitting of the ceiling suspension device can be changed. The ceiling suspension device fixing device, a fixing plate extending in the horizontal direction and fixed to the structure, and an upper end flange located immediately below the fixing plate, extending in the horizontal direction and fixed to the fixing plate. The ceiling suspension device fixing device according to any one of claims 1 to 7, wherein an upper end installation portion of the suspension member is fixed to the upper end flange. 9. The ceiling suspension device fixing device according to claim 8, wherein the ceiling suspension device fixing device has an upper end reinforcing rib fixed to the upper end installation portion of the suspension member and fixed to the upper end flange and extending in a vertical direction. The ceiling suspension device fixing device extends horizontally and is attached to a lower end support portion of the hanging member, and a lower end first flange extends horizontally and is located below the lower end first flange. The lower end 2nd flange attached to the lower end support part of a member, The base end part of the said horizontal support frame is installed between the said lower end 1st flange and the said lower end 2nd flange. The ceiling suspension device fixing device according to claim 9. 11. The ceiling suspension device fixing device according to claim 10, wherein the ceiling suspension device fixing device has a lower end reinforcing rib that is fixed to the lower end support portion of the hanging member and is fixed to the lower end first flange and extends in the vertical direction.

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