JP5038677B2 - Brace mounting structure - Google Patents

Description

  The present invention relates to a mounting structure for braces, and more particularly to a mounting structure for braces that are mounted between suspension bolts so that a ceiling frame that is suspended via suspension bolts suspended from a ceiling slab has earthquake resistance. It is.

  Conventionally, when attaching a brace for diagonal reinforcement to the ceiling or ceiling foundation suspended by a suspension bolt for the purpose of steadying or seismic resistance, it crosses from the upper end of the suspension bolt to the hanger at the lower end of another adjacent suspension bolt. It is overlaid diagonally. The brace angle is set at an angle close to 45 ° in order to mainly bear the horizontal force (see, for example, Patent Documents 1 to 4).

However, in the conventional example, when the tip end side of the brace material in the axial direction is attached to one suspension bolt so that the length can be adjusted, one place (or two places perpendicular to the axial direction) of the brace material is hung. Because it is supported on the bolt side, the support part easily deforms due to external force during construction or earthquake, and in this case, the mounting angle of the brace material will be shifted and the mounting strength of the brace material will be reduced. It had the problem that.
JP 2003-138688 A JP 2004-353365 A JP-A-5-156744 Japanese Utility Model Publication No. 5-94401

  The present invention was invented in view of the above-described conventional problems, and the brace material is less likely to be deformed by an external force during construction or during an earthquake, so that the brace material can be secured with sufficient strength. It is an object of the present invention to provide a structure and to provide a brace mounting structure that can easily adjust the angle of the brace material.

In order to solve the above-mentioned problems, the present invention supports ceiling equipment such as a ceiling frame 11 using a plurality of suspension bolts 1 suspended from a ceiling slab 10 and is used for reinforcement between adjacent suspension bolts 1 and 1. A brace mounting structure for mounting the brace material 2 diagonally, and a brace mounting member 15 that is attached to one of the suspension bolts 1 so as to be adjustable in length on the distal end side in the axial direction A of the brace material 2. The brace mounting member 15 includes a latching portion 5 that is latched by the suspension bolt 1 and a plurality of brace support portions that support a plurality of locations at the tip of the brace material 2 with an interval in the axial direction A of the brace material 2. 6 and a plurality of pairs of brace support portions 6 and a plurality of brace support portions 6 are formed separately, and the hook portions 5 have different angles with respect to the axial direction A of the brace material 2. A fitting groove 7 is provided, and either one pair It is characterized in that the attachable a plurality of brace supports 6 against the fitting groove 7 having an angle.

With such a configuration, the brace mounting member 15 is integrally provided with a plurality of brace support portions 6 at intervals in the axial direction A of the brace material 2, and the tip of the brace material 2 is attached to the brace. Since the structure is supported at a plurality of locations of the member 15, even if one of the brace support portions 6 is deformed against an external force during construction or an earthquake, it is arranged with an interval in the axial direction A. Since the other brace support portion 6 remains, the mounting angle of the brace material 2 does not shift. Therefore, breaks off the bolt portion 3 from the brace attachment member 15, or without having to come off from the engaging part 5 is hanging bolt 1, ing to the mounting strength of the brace 2 can be sufficiently ensured. Further, in a case where the angle adjustment of the brace member 2, since the mounting angle of the brace support 6 against the engaging part 5 can be easily changed, it is possible to easily deal with an angle difference of brace 2 with respect to hanger rod 1 It becomes like this.

  Further, it is preferable to drill a screw hole 9 for attaching the angle adjusting screw 8 toward the suspension bolt 1 in the contact surface 5a of the hook portion 5 with the suspension bolt 1, in this case, When adjusting the angle of the latching portion 5, the angle can be finely adjusted by tightening the angle adjusting screw 8, and the angle can be easily adjusted by simply tightening the angle adjusting screw 8. The number of members other than the adjusting screw 8 can be reduced, thereby reducing the size, reducing the weight, facilitating handling, and making the structure simple and inexpensive.

  Further, it is preferable to provide curved surface portions 12 that bend in a direction away from the suspension bolt 1 toward the upper and lower end sides from the center side of the contact surface 5a on both upper and lower ends of the contact surface 5a of the hook portion 5, In this case, when the angle of the latching portion 5 with respect to the suspension bolt 1 is adjusted, the contact surface 5a of the latching portion 5 is provided on each of the upper and lower ends of the contact surface 5a regardless of the direction of inclination. The contact area between any one of the curved surface portions 12 and the suspension bolt 1 is increased, and it is easier to increase the mounting strength.

  In the present invention, the brace material is less likely to be deformed by an external force during construction or during an earthquake by supporting a plurality of locations at the tip of the brace material in the axial direction with a brace support portion spaced apart in the axial direction of the brace material. It becomes a structure, and can secure sufficient mounting strength of the brace material.

  In addition, the present invention comprises a latch part and a plurality of brace support parts as separate bodies, and the latch part is provided with a plurality of pairs of fitting grooves having different angles with respect to the axial direction of the brace material. By attaching a plurality of brace support parts to the pair of fitting grooves, or by drilling a screw hole for attaching an angle adjusting screw toward the suspension bolt on the contact surface of the latching part The angle adjustment of the brace material becomes easy.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

  1 and 2 show an embodiment corresponding to claim 1 of the present invention. In the present embodiment, a plurality of suspension bolts 1, 1 are suspended from the ceiling slab 10 at a predetermined interval, and a T serving as a support for the ceiling frame 11 via the hanger 21 at the lower end of each suspension bolt 1. A bar 20 is provided. A brace is bridged obliquely from the upper end of the adjacent one of the suspension bolts 1 to the hanger 21 at the lower end of the other suspension bolt 1. The mounting angle of the brace is in the range of 30 ° to 60 °, centering on 45 °.

  As shown in FIG. 1, a bolt portion 3 is provided at the tip of the brace material 2. The bolt part 3 of this example is constituted by, for example, a battledore bolt 4. One side of the battledore bolt 4 is composed of a bolt portion 3 having a diameter of about 9 mm, and the other side is composed of a flat portion 4a attached to the distal end portion of the brace material 2. In this example, the flat portion 4a and the distal end of the brace material 2 are screws. 13 is fixed.

  The bolt portion 3 is connected to a plurality of brace support portions 6 provided on the brace mounting member 15. Here, the brace support portions 6 are provided at two places in the front and rear with a space in the axial direction A of the brace material 2. The through-hole 6a of the front brace support 6 is threaded and the bolt 3 is fastened and fixed. The through-hole 6b of the rear brace support 6 supports the bolt 3 so as not to be threaded. These brace support portions 6 are each formed by cutting and raising from a flat portion of the brace attachment member 15 in a plane perpendicular to the axial direction A of the brace material 2, and are provided in each brace support portion 6 and through holes 6a and 6b. Are arranged on the same axis as the axial direction A of the brace material 2. Note that the two brace support portions 6 may not be integrated with the brace mounting member 15 but may be configured separately.

  At the tip of the brace mounting member 15, a hooking portion 5 that is hooked on the suspension bolt 1 is provided. A threaded surface 40 or a groove is dug in the contact surface 5 a of the latching portion 5 with the suspension bolt 1, so that the latching portion 5 does not slide with respect to the suspension bolt 1.

  Therefore, when attaching the brace material 2 having the above-described configuration, for example, by rotating the brace material 2 in a state where the hook portion 5 is hooked on the upper end side of one suspension bolt 1, the bolt portion 3 is moved to the front side. The entire length of the brace material 2 is adjusted by being screwed into the brace support portion 6 and pulling the latching portion 5. Then, the lower end part of the brace material 2 is screwed and fixed to the hanger 21 side of the lower end of the other suspension bolt 1.

  Here, the brace mounting member 15 is integrally provided with two brace support portions 6 spaced apart in the axial direction A of the brace material 2, and the bolt portion 3 at the tip of the brace material 2 supports the front brace. Since it is screwed to the through hole 6a of the portion 6 and supported so as not to move in the through hole 6b of the brace support portion 6 on the rear side, the bolt portion 3 is supported at two locations. As a result, even if the front brace support 6 is deformed against an external force during construction or an earthquake, the rear brace support 6 arranged at intervals in the axial direction A remains. Therefore, the mounting angle of the brace material 2 does not shift. Therefore, the bolt part 3 is not detached from the brace attaching member 15 or the hooking part 5 is not detached from the suspension bolt 1, so that the effect of ensuring sufficient attachment strength of the brace material 2 can be obtained. .

  FIG. 3 shows an embodiment corresponding to claim 2 of the present invention. In order to adjust the angle of the brace material 2, the hooking portion 5 and the plurality of brace support portions 6 are configured separately, and A plurality of pairs (for example, four pairs) of fitting grooves 7 having different angles with respect to the axial direction A of the brace material 2 are provided in the stop portion 5, and a plurality of braces are supported by any one of the pair of fitting grooves 7. The part 6 is attached. The other parts are the same as in FIG. 1, and the corresponding parts are denoted by the same reference numerals and detailed description thereof is omitted. In this example, it is formed in a U-shape in which two brace support portions 6 are raised from both ends of the bottom piece 6c. The fitting groove 7 is composed of four pairs of fitting grooves 7a, 7b, 7c... Having different angles, and the two brace support portions 6 are fitted into any one pair of the fitting grooves 7 from the back surface of the brace mounting member 15. By fixing with screws, a pair of brace support portions 6 can be attached at an arbitrary angle. Thus, when adjusting the angle of the brace material 2, the mounting angle of the brace support 6 can be easily changed by selecting any one of the fitting grooves 7 (7a, 7b, 7c,...). Therefore, it is possible to easily cope with the difference in the angle of the brace material 2 with respect to the suspension bolt 1.

  FIG. 4 shows an embodiment corresponding to claim 3 of the present invention. In order to adjust the angle of the brace material 2, the contact surface 5 a with the suspension bolt 1 of the latching portion 5 is directed toward the suspension bolt 1. A screw hole 9 for attaching the angle adjusting screw 8 is drilled. The other parts are the same as in FIG. 1, and the corresponding parts are denoted by the same reference numerals and detailed description thereof is omitted. In this example, the screw holes 9 are provided above and below the central axis of the brace material 2, and the brace material can be adjusted by attaching either the upper or lower of the angle adjusting screw 8 or adjusting the tightening allowance of the angle adjusting screw 8. The mounting angle 2 is variable. Thus, the angle can be finely adjusted by the tightening allowance of the angle adjusting screw 8, and it is only necessary to tighten the angle adjusting screw 8. Therefore, the angle adjusting screw 8 can be easily adjusted and attached. Therefore, the number of members does not increase, the size is reduced, the weight can be reduced, and the handling becomes easy. In addition, there is an advantage that the structure can be simplified and can be produced at a low price.

  FIG. 5 shows an embodiment corresponding to claim 4 of the present invention, which is located on both upper and lower end sides of the contact surface 5a of the latching portion 5 with the suspension bolt 1, respectively from the center side of the contact surface 5a to both upper and lower end sides. An R-shaped curved surface portion 12 that bends away from the suspension bolt 1 as it goes is provided. The other parts are the same as in FIG. 4, and the corresponding parts are denoted by the same reference numerals and detailed description thereof is omitted. In this example, a thread or groove is dug in the inner surface of the curved surface portion 12. Thus, when adjusting the angle of the latching portion 5 with respect to the suspension bolt 1, no matter which direction the contact surface 5a of the latching portion 5 is tilted with respect to the suspension bolt 1, the upper and lower ends of the contact surface 5a are respectively The contact area between any one of the provided R-shaped curved surface portions 12 and the suspension bolt 1 is increased, and coupled with the fact that the inner surface of the curved surface portion 12 is threaded or grooved, the mounting strength can be increased. It becomes even easier.

  In the above embodiment, the bolt portion 3 is fastened and fixed only to the front brace support portion 6 and the rear brace support portion 6 is configured to support the bolt portion 3 so as not to move. The through holes 6b of the brace support 6 on the rear side may be threaded and the bolts 3 may be fastened and fixed to both the front and rear brace supports 6 respectively.

It is a perspective view which shows the connection state of the suspension volt | bolt in one Embodiment of this invention, a brace attachment member, and the bolt part of a brace material front-end | tip. It is a block diagram explaining the state which constructed the brace material same as the above diagonally between the suspension bolts. (A) is a perspective view which shows other embodiment of this invention, (b) is a perspective view at the time of integrating two brace support parts in a U-shape. It is a front view of further another embodiment of this invention. It is a front view of further another embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Suspension bolt 2 Brace material 5 Hatch part 5a Contact surface 6 Brace support part 7 Fitting groove 8 Angle adjustment screw 9 Screw hole 10 Ceiling slab 11 Ceiling frame 12 Curved part 15 Brace attachment member A Axial direction

Claims (3)

A brace mounting structure in which a plurality of suspension bolts suspended on a ceiling slab are used to support ceiling equipment such as a ceiling frame, and a brace material for reinforcement is obliquely installed between adjacent suspension bolts. A brace mounting member that is attached to one suspension bolt so that the length thereof can be adjusted is provided on the distal end side in the axial direction of the material. The brace mounting member includes a latching portion that is latched by the suspension bolt, and a tip of the brace material. And a plurality of brace support portions that support the brace material at an interval in the axial direction of the brace material, and the latch portion and the plurality of brace support portions are configured separately and the latch portion. A plurality of pairs of fitting grooves having different angles with respect to the axial direction of the brace material are provided, and a plurality of brace supporting portions can be attached to the fitting grooves having any one of the angles. Blur Nest mounting structure. 2. The brace mounting structure according to claim 1, wherein a screw hole for attaching an angle adjusting screw toward the suspension bolt is formed in a contact surface of the latching portion with the suspension bolt . The upper and lower both ends of the contact surface of the engaging portion, of claim 2, respectively, characterized in that a curved portion bent in a direction away from the more hanger rod toward the center side of the contact surface on the upper and lower end side Brace mounting structure .

Images