Automatic bracing device
The automatic bracing device reinforces frame-structured buildings by installing diagonally opposite existing columns, addressing high costs and appearance issues in earthquake-resistant renovations.
Patent Information
- Application Number
- JP2024060482
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-03-14
- Publication Date
- 2025-09-29
AI Technical Summary
Frame-structured buildings face challenges in earthquake resistance due to high costs and time-consuming large-scale renovations, and existing diagonal braces damage the house's appearance when installed externally.
An automatic bracing device is installed diagonally opposite existing columns to reinforce them without altering the interior, using vibration sensors to activate reinforcement during earthquakes, maintaining the house's appearance.
Enhances earthquake resistance by strengthening existing columns efficiently and cost-effectively, without disrupting the interior space or aesthetics.
Smart Images

Figure 2025141729000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention is an automatic bracing device that is installed on earthquake-resistant bracing columns, etc., which contributes to reinforcing building columns, etc., and to reinforcing buildings. [Background technology]
[0002] Traditional frame houses have extremely few walls, and it has been proven that the strong gravity concentrated on the columns would cause the houses to collapse quickly, so earthquake-resistant structural improvements have been made, but on the other hand, there are a large number of frame houses, so earthquake-resistant and vibration-control construction work is currently hesitant due to the high cost.In this situation, the automatic column bracing device of this invention can be easily installed, there is no need to move items stored inside the house, and it reinforces existing columns with an external bracing device.The advantage is that while the tension bracing method damages the appearance of the house, such as the passageways under the eaves, the automatic bracing device is set on the existing columns during normal times, and when it senses vibrations such as an earthquake, it performs a bracing function and reinforces the existing columns, providing earthquake resistance. [Prior art documents]
[0003] Summary of the Invention [Problem to be solved by the invention]
[0004] This had the following drawbacks: (a) A frame-structured building has a large amount of interior space and few walls, so vibrations are concentrated at the joints between the columns and beams, making reinforcement the most important factor. However, currently, large-scale earthquake-proofing work requires replacing most of the building's parts between the columns under the roof, which is costly and takes a long time. (b) Even if large-scale earthquake-resistance reinforcement is carried out, the gravity load of the roof, etc. will not change to the existing pillars, and as a countermeasure, an automatic device for bracing pillars was developed to reinforce important pillars first in order to save costs and construction time. (c) Generally, when diagonal braces are attached to columns, they are placed on the outside of the existing column facing the column due to the angle of the brace, which damages the passage under the eaves and the appearance of the house, so they are placed together with the existing column under normal circumstances, and when vibrations occur, the diagonal brace column is immediately placed in the designated position. Means to solve the problem
[0005] Even in large-scale earthquake-proofing construction work, existing columns are generally not reinforced, and the automatic brace setting device of the present invention is used to reinforce existing columns by increasing their strength against vibrations.
[0006] This invention strengthens the vibration control by increasing the strength of existing columns, and by installing this automatic brace setting device on the opposite column, the vibration control effect can be greatly increased. [Brief explanation of the drawings]
[0007] [Figure 1] A side view of a set of automatic bracing devices for external reinforcement of conventional post-and-beam structure house columns [Figure 2] Front view of the existing column and the automatic bracing column [Figure 3] This automatic device is installed next to the diagonal column. [Figure 4] Joint and functional slope diagram of existing column and new brace column [Figure 5] Horizontal view of the front set of the existing column and the main brace column with an automatic brace device attached [Figure 6] Front view of this automatic bracing device Modes for carrying out the present invention
[0008] The following describes the mode for carrying out the invention. Many people hesitate to carry out large-scale earthquake-resistant renovations on frame-built houses due to the large cost involved in replacing the interior of the house and rearranging the equipment inside. Therefore, the most important thing is to reinforce the pillars, which are a weakness of the house. This is the reason why an automatic external brace column device was developed to reinforce pillars at low cost, within a short construction period, and without replacing the interior of the house. Even if earthquake-resistant seismic control work has already been done, pillars are rarely reinforced, and the automatic external brace device of this invention can be installed diagonally opposite the installed pillars to reinforce the house and prevent it from collapsing, and in peacetime it can be set on the existing pillars, which has the advantage of securing space under the eaves and not impairing the appearance of the house. [Explanation of symbols]
[0009] [Figure 1] A side view of the automatic bracing device set for external reinforcement of conventional post-and-beam structure house columns 1. Existing pillars of conventional frame-structured houses 2 beams 3. An iron box with the top of the automatic bracing column set on the existing column 4. Set the automatic bracing column to the existing column 5. Automatic bracing column device for existing columns 6. Automatic bracing column [Figure 2] Front view of the existing column and this automatic brace column 7. Prevents lateral movement when connecting and closing the brace column. Angle setting hinge for brace column. 8. Main bolt connecting existing column and automatic brace column 9. Hinges that can accommodate changes in the position of the opening and closing bolts of existing columns and diagonal columns 10. Automatic brace setting device storage box 11. Vibration-sensing ball (iron ball) 12. Vibration sensing ball set base and vibration sensing electrode contact spring 13. Lever base that transmits the force of a ball's fall by vibration 14, simultaneously turn on the electromagnetic switch on the right side of the figure and release the lever plate lock on the left side 15. A backup function for releasing the lever spring by turning on the electromagnetic switch 16. Lever spring lock and release 17. Spring lock 18. Raise the brace column to a brace angle higher than the existing column. 19. Set the diagonal column to the diagonal angle. Connect the plate spring to the electromagnetic switch. 20. When the brace is set, the power is turned off. 21. Spring arm lever mounting base 22. Electromagnetic switch power outlet [Figure 3] A perspective view of the automatic brace device operating alongside the brace column. 10. Attach the automatic bracing device to the bracing column and set it next to the existing column. 11. Sensor - The ball falls from the base due to vibration detection. 12. The sensor ball contacts the four sensing springs and the current enters the electromagnetic switch. 13. Due to vibration, the falling ball hits the lever plate of the two-system switch on the switch guide plate. 14. The falling force is simultaneously applied to the half-rotating axis lever plate, and the left and right lever plates turn on the two switches, electromagnetic switch on and lever key off. 15. Electromagnetic switch 16. Compression spring lock 17. Compression spring opening and closing position 18. Automatic bracing column or bracing function angle raising lever arm machine 19. The leaf spring and coil spring transmit the current stop signal to the electromagnetic switch. 20. When the electromagnetic switch is turned on, the compressed spring is released and the current is stopped. 21 Spring / lever arm installation stand 22. Electromagnetic switch power outlet [Figure 4] Connection and function of existing column and braced column 3. The existing column and the automatic diagonal opening and closing column upper storage machine axis set iron box 4. The brace detects vibration and adjusts to the correct angle. 7. The condition is that the brace column is diagonally opposite the existing column and a hinge is installed to prevent lateral movement. 8. Main bolt for the existing column and the brace column 9. Set the main bolt angle adjustment hinge to the existing column and the main brace column 10. Automatic bracing device storage box 23. When the main bolt cannot penetrate the existing column, fix it to the storage base set box (3) 26. Installation base for this brace column [Figure 5] A side view of the automatic bracing device for the front set of the existing column and the main bracing column. 1. Existing pillar 3. Automatic bracing column upper set iron box 4. Automatic bracing column 7. Functional angle of the brace column between the existing column and the new brace column and anti-sway hinge 8. Main bolt for the existing column and main brace 10. Automatic bracing column storage box 21. Set the lever arm at the angle of the brace column of this brace column to the existing column 23. When the existing pillar protrudes from the wall 24. Main bolt and nut fastening to existing column and brace column set storage iron box 25. Attach a through bolt to the existing pillar [Figure 6] Front view of the automatic bracing device 10, Bracing automatic device 11, Vibration Sensing Ball 12, Vibration sensing ball base sensor spring 11. Vibration causes falling balls 13. Lever plate that transmits falling vibration force 14 The falling force is simultaneously applied to the electromagnetic switch and spring from the half-rotating shaft. 16. When resetting the unlocking key lever and this device, return the arm [Fig. 5] 21 and set the spring compression to the lock lever key. Then set the sensor iron ball to [Fig. 1] 12 and the current will stop. 17. Compression spring set 18. Tekoam, which raises the brace angle of the brace column from the existing column 19. Leaf spring compression set and electromagnetic switch current stop connection lever arm 20. Current stop switch for electromagnetic switch 21. Spring brace column set base 22. Electromagnetic switch power outlet
Claims
1. The automatic bracing device of the present invention is installed on pillars and buildings to prevent damage caused by shaking and vibration. It detects the vibration and then operates at the correct angle for the bracing by the starting system of the automatic bracing device, landing it in place. This automatic bracing device can also be used in other buildings.
2. The operation of the vibration detection system is shown in the diagrams of installation on an existing pillar [Explanation of symbols] [Fig. 1] to [Fig. 6], but when installing this automatic bracing device, it is installed diagonally opposite the pillar.
3. (a) The automatic bracing device starts with three systems of sensors and operation switches.
1. When the vibration sensing ball falls, the sensor contacts electricity and the gravity of the falling ball switches on the two lever systems.
2. Power switch 3. Lever lock key release (b) After the bracing device is completed 1. Automatic current stop switch to electromagnetic switch after spring compression is released
4. The installation of automatic bracing device columns allows for effective bracing at angles other than opposite angles.
5. The diagonal bracing materials for the automatic diagonal bracing device are materials other than wood depending on the building.
6. The parts to be changed to this automatic bracing device for the purpose of using the shape of the target building.
Citation Information
Patent Citations
Device preventing collapse by supporting building in case of earthquake and enabling escape and refuge in case of fire
JP2003035048A