今井鉄工所 List of Products and Services

The "Crane Gripper" is a device that reduces the risks of derailment and falling due to earthquakes. It is designed to respond to both lateral and vertical shaking. This allows ceiling cranes to be used early after a disaster, enabling normal operations to resume. Additionally, it prevents derailment of ceiling cranes that may occur during regular operations. 【Features】 ■ Structure that minimizes contact between the rail and the claw part ■ The claw part follows the lateral undulations of the rail ■ Easily installable without modifications to existing cranes ■ Additional installation possible on box structures or saddle end faces with covers *For more details, please download the PDF or feel free to contact us.

• others

Ceiling cranes are essential equipment for transporting heavy objects and are used in various manufacturing facilities, including automobile and railway factories. However, in recent years, numerous accidents have occurred on-site due to the frequent occurrence of massive earthquakes, such as: 1. Derailment caused by bouncing or lifting, resulting in the ceiling crane falling. 2. Falling of the running rail due to insufficient strength of the fixing hardware. As a result, there have been cases where employees were trapped under the crane, or the factory's resumption of operations was significantly delayed, leading to substantial impacts on both safety and economic aspects. By introducing the following products, we can prevent derailment and sudden drops of ceiling cranes caused by earthquakes. 'Crane Gripper' By integrating the saddle and gripper, it maintains a state of gripping the rail, making it physically difficult to disengage. 'Rail Keeper' It has greater strength than conventional hook bolts, reducing the risk of the crane falling along with the rail. *You can also view experimental materials from the PDF download. Please feel free to contact us for inquiries.*

• Patent/Copyright related services

The "Rail Keeper" is a fixture that reduces the risk of instant drop of cranes and running rails due to earthquakes and other factors. It utilizes the existing rail holes used for hook bolt installation, eliminating the need for extensive construction such as welding for installation. By improving the strength of the running rail and its attachment, damage reduction can be expected, and we propose this product as a running rail fixing fixture with strength that can replace hook bolts. 【Features】 ■ Reduces the risk of instant drop of cranes and running rails due to earthquakes and other factors ■ Can also be used as rail reinforcement ■ Utilizes the existing rail holes used for hook bolt installation ■ No need for extensive construction such as welding for installation ■ Patent number: 5290478 *For more details, please refer to the PDF document or feel free to contact us.

• Anti-vibration, earthquake-proof, vibration-isolating devices
• Other molds
• others

The "Crane Gripper" is a device designed to reduce the risks of derailment and falling due to earthquakes. It can accommodate both lateral and vertical shaking. It allows for the use of overhead cranes at an early stage after a disaster, enabling normal operations. Recently, there have been continuous earthquakes causing significant damage. Based on actual earthquake cases, we emphasize safety measures to reduce the risks of derailment and sudden drops of overhead cranes, and we present the "Crane Gripper" as a solution to mitigate risks for potential emergencies in the future. 【Features of the Crane Gripper】 ■ Structure that minimizes contact between the rail and the claw part ■ The claw part follows the lateral undulations of the rail ■ Easily attachable to existing cranes without modification ■ Additional installation possible on box structures or saddle end faces with covers *For more details, please download the catalog or feel free to contact us.

• Patent/Copyright related services

Imai Iron Works has been manufacturing various cranes as a crane manufacturing authorized factory by the Ministry of Labor. Overhead cranes are essential equipment for transporting heavy objects and are used in many manufacturing plants, including automobile and railway factories. However, in recent years, numerous earthquakes, such as the Great East Japan Earthquake and the Kumamoto Earthquake, have occurred, leading to many accidents on site, including: 1. Derailment due to bouncing and lifting, resulting in the overhead crane falling. 2. Falling of the running rails due to insufficient strength of the fixing brackets. As a result, there have been cases where employees were trapped under the rails, and the reactivation of factories was significantly delayed, causing major impacts both in terms of safety and economy. Imai Iron Works proposes measures to prevent the falling of cranes and rails using the "Crane Gripper" and "Rail Keeper," which are listed in the indicators of the Japan Crane Association. Both the "Crane Gripper" and "Rail Keeper" are patented. *For more details, please download the catalog or feel free to contact us.

• Patent/Copyright related services

Imai Iron Works proposes the "Rail Keeper," which reduces the risk of instant drop of ceiling cranes and running rails due to earthquakes and other factors. This document includes the development background, specifications, installation methods, and more. [Contents] ■ Company Overview ■ What is the Rail Keeper? ■ Development Background, Specifications ■ Installation Conditions, Preliminary Survey ■ Installation Methods, Comparison with Other Methods ■ Verification of the Rail Keeper *For more details, please refer to the PDF document or feel free to contact us.

• Anti-vibration, earthquake-proof, vibration-isolating devices
• Other molds
• others

This is an introduction to the ceiling crane-related equipment handled by Imai Iron Works. We offer a lineup that includes the "Crane Gripper," which boasts numerous successful installations, as well as the "Rail Keeper." Before facing difficult situations such as falling running rails or ceiling cranes, we propose the introduction of our products. 【Features】 <Crane Gripper> ■ Registered as an earthquake countermeasure device for ceiling traveling cranes in the standard technology collection of the Patent Office ■ Prevents derailment and instantaneous falls ■ Usable with most existing ceiling cranes ■ Easy to install ■ Maintenance can be performed by anyone *For more details, please refer to the PDF document or feel free to contact us.

• Anti-vibration, earthquake-proof, vibration-isolating devices
• crane
• others

Ceiling cranes are essential equipment used in various manufacturing industries, including automobile and railway factories, for transporting heavy loads. However, in recent years, numerous accidents have occurred on-site due to massive earthquakes, such as the following: 1. Derailment caused by bouncing or lifting, resulting in the ceiling crane falling. 2. Falling of the running rail due to insufficient strength of the fixing hardware. As a result, there have been cases where employees were trapped under the rails, and the resumption of factory operations was significantly delayed, leading to substantial impacts on both safety and the economy. By introducing the following products, we can prevent derailment and instantaneous falling of ceiling cranes due to earthquakes. *Patent obtained. 'Crane Gripper' By integrating the saddle and gripper, it maintains a state of gripping the rail, making it physically difficult to detach. 'Rail Keeper' It has greater strength than conventional hook bolts, reducing the risk of the crane falling along with the rail. *You can also view experimental materials from the PDF download. Please feel free to contact us.

• Patent/Copyright related services