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  1. Home
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  3. 吉川工業
  4. [New Product] A "Safety Block Usage Detection System" that automatically detects the non-use of safety blocks for fall accident prevention in high-altitude work has been introduced!
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  • Mar 16, 2026
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Mar 16, 2026

[New Product] A "Safety Block Usage Detection System" that automatically detects the non-use of safety blocks for fall accident prevention in high-altitude work has been introduced!

吉川工業 吉川工業
In high-altitude work, the reliable use of safety blocks (fall arrest equipment) is required. However, there are not a few cases where human errors, such as forgetting to connect the hook due to focusing too much on the task, lead to accidents. To address such issues, Yoshikawa Industrial has newly developed a "Safety Block Usage Detection System" that automatically detects the usage status of safety blocks. This system uses detection devices that can be retrofitted to safety blocks and tags carried by workers to automatically determine the usage status of the safety blocks. If the safety block is not in use in a hazardous area, an alarm is triggered to alert the worker. Additionally, by using it in conjunction with the existing "Harness Alert," it is also possible to centrally manage the usage status of full harness-type safety belts and safety blocks. This supports the enhancement of safety management at sites involving high-altitude work, such as bridge construction and equipment inspections. Details about the mechanism and features of this product are introduced on the product page. Please take a look.
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Detecting unused safety block. Harness alert compatible with safety block model.

A safety management system that automatically detects "forgotten hook attachment" during high-altitude work and alerts users with an alarm when not in use.

In high-altitude work, the reliable use of safety blocks is required, but human errors such as forgetting to hook can lead to accidents on site. This product, "Harness Alert - Safety Block Compatible Model," is a usage detection system that can be retrofitted to safety blocks. It automatically detects the user's usage status with a magnetic sensor and issues an alarm to raise awareness when not in use. Furthermore, by using it in conjunction with "Harness Alert," it is possible to centrally manage the usage status of full harness-type safety belts and safety blocks. This product enables accident prevention through a system that does not rely on verbal reminders or visual checks for safety confirmation. ◇Features ■ Easy retrofitting When combined with an area setting machine, it can be implemented simply by attaching a magnet to your existing safety block and having the worker carry a tag. ■ Reliable detection with magnetic sensors The usage status of the safety block is detected by the tag's magnetic sensor, automatically determining when the hook is not in use. ■ Alarm for awareness when not in use If the safety block is not in use within a danger area, an alarm will activate, prompting the worker to ensure the proper use of the safety block. ■ Lightweight and compact design Both the tag case and magnet are designed to be approximately 20g, reducing the burden on the worker.

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安全帯フック着脱確認システム 着用イメージ.jpg

Warning for forgetting to hook the harness during high-altitude work! "Harness Alert"

We will reduce fall accidents at high-altitude work sites caused by forgetting to hook the safety belt.

**[Amendment to the Labor Safety and Health Act]** In January 2022, there was a legal amendment regarding fall prevention equipment, and interest in ensuring safety during high-altitude work has increased. The Harness Alert detects when the safety belt hook is not detached from the hook holder and notifies users with an alarm (alert). It encourages high-altitude workers to use safety belts properly. *It can be easily attached to commercially available safety belts as an "add-on"!* **■ System Overview** 1. Set up the "Area Setting Device" at the high-altitude work site. The area setting device can be selected from three types: spot, rope, and wide, depending on the application. (For details, please refer to the basic information section.) 2. Workers will wear the "IC Tag-equipped Hook Holder" and "Hook Magnet." 3. Detect whether the "safety belt hook is being used" within the area. If the safety belt hook is not in use, an alarm (alert) will be issued. **■ Applicable Sites** General high-altitude work sites (bridge construction, residential construction sites, rooftop work)

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Cloud Safety Measures Monitoring the Site [Harness Alert Cloud]

Visualizing the dangers of high-altitude work sites and implementing a higher level of safety measures with the "Harness Alert Cloud."

The Harness Alert is a safety system that issues warnings to workers who forget to use hooks while working at heights, raising awareness of safety. By adding the Harness Alert Cloud, it transforms "invisible hazards" occurring on-site into "visible safety data," enabling preventive safety management to prevent accidents before they occur. Alarm history is automatically sent to the cloud via LTE communication, allowing administrators to check the site conditions from anywhere using a browser. By accumulating and analyzing data for each worker, it supports the understanding of danger trends and proactive safety measures. 【Features】 - Remote monitoring function: Check the safety harness usage status from a remote location - LTE communication compatible: Send on-site information to the cloud in real-time - Automatic alarm history recording: Automatically record the time of alarm occurrence, the relevant worker, and the area of occurrence - Reporting function: Automatically generate reports on hook usage status - Alert notification function: Notify administrators of alarms when hooks are not used - Browser compatibility: Viewable from a browser without the need for dedicated software - Easy installation: Can start operation with just the installation of additional equipment to existing systems *For details, please refer to the PDF document or contact us.

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吉川工業
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Hyper CLT flooring panel

Creating a site that conveys at a glance | Hyper CLT flooring

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In civil engineering sites, it is important to clearly communicate not only safety and workability but also "what kind of initiatives the site is undertaking." Hyper CLT mats are civil engineering mats that utilize wood CLT. They look significantly different from conventional steel plates, so when laid at site entrances, viewing routes, or material yards, they create a strong visual impact. In particular, during inspections by clients, site tours, and public open days for local residents, the use of wood, environmental considerations, and the application of new technologies can be conveyed in a "visible form." Additionally, they are lightweight and easy to install and remove, and they offer practical benefits such as reducing glare and metal noise, as well as CO2 fixation. Hyper CLT mats are registered with the Ministry of Land, Infrastructure, Transport and Tourism under NETIS as "TH-250021-A." They combine wood, NETIS, civil engineering, and CLT, making them a new temporary material that can impressively convey the initiatives of the site.

Sep 11, 2026

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CCS3 product photo

The new product "Vehicle Count Sensor CCS3" enables efficient occupancy management of large parking lots.

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Hotron Inc. has launched its new product, the "Vehicle Count Sensor CCS3"! This product is a ceiling-mounted sensor that combines infrared and radar technology. It reliably detects vehicles in both directions with a single unit, accommodating traffic during congestion and vehicle passing, thus achieving efficient occupancy management in large parking lots. Additionally, it can be utilized for exit warning purposes in addition to vehicle counting, contributing to the safe and smooth operation of parking facilities. 'Features' - Improved detection performance against changes in road surface during rainy weather by using both infrared and radar. - Equipped with IP67 waterproof and dustproof performance, making it effective even in salt damage areas. - Various settings can be configured from a dedicated app (for Android devices), with current settings easily understandable at a glance. - The base dimensions are the same as the previous model "CCS2," allowing for smooth replacement of existing equipment. *For more details, please refer to the product information, catalog download, or contact us.*

Sep 11, 2026

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Metal Crack Repair: MS Method for Repairing Cracks and Fractures in Machinery Equipment

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  • CATALOG

Metal cracks are one of the concerns in equipment maintenance operations. Conventional welding repair methods can alter the base material around the crack due to heat, leading to residual stress and deformation, which always carries the risk of "crack recurrence" and "secondary damage." Hinode Water Supply Equipment Co., Ltd.'s "Mechanical Stitching Method" is a new technique that allows for metal crack repair without applying heat. By using special bolts and reinforcement plates, the crack is physically removed without affecting the base material with heat. Repairs can be made even in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. For more details, please contact us or download the catalog.

Sep 11, 2026

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Metal Crack Repair: MS Method for Repairing Cracks and Fractures in Machinery Equipment

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  • PRODUCT

Metal cracks are one of the concerns in equipment maintenance operations. Conventional welding repair methods can change the base material around the crack due to heat, leading to residual stress and deformation, which always carries the risk of "crack recurrence" and "secondary damage." Hinode Water Supply Equipment Co., Ltd.'s "Mechanical Stitching Method" is a new technique that allows for the repair of metal cracks without applying heat. By using special bolts and reinforcement plates, the crack is physically removed without affecting the base material at all. Repairs can be made even in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. For more details, please contact us or download the catalog.

Sep 10, 2026

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Please let us know your concerns regarding leaks. We may have some suggestions for you. Leak tests, leakage tests, leak inspections, leak detection, container integrity tests, packaging integrity tests...

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Fukuda Corporation has been pursuing leak detection for 60 years and is dedicated to advancing the future of leak testing. 【 Supporting Various Leak Tests: Air Leak Test / Gas Leak Test (Hydrogen Gas, Helium Gas) 】 We develop, manufacture, and sell leak testing equipment to inspect airtightness and sealing performance. We will propose suitable testers and devices for each inspection target. 【 Target Industries and Examples of Inspection Targets 】 - Automotive Industry: Engines, FC components, valves and piping, various parts - Electronic Components Industry: Smartphones, keyless switches, various small sensors - Pharmaceuticals / Food / Cosmetics Industry: Bottle containers, syringes, vials, eye drop containers, pillow packaging, PTP packaging We will propose the most suitable leak testers for each industry. 【 ISO Certification 】JIS Q 9001:2015 (ISO 9001:2015)

Sep 10, 2026

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