レンタルのニッケン List of Products and Services

Product Use: This is an "all-in-one" bag designed to manage and carry tools, stationery, tablets, and other items necessary for on-site inspections. Product Features: It can stand upright without tipping over due to the weight of the contents. It is waterproof, providing peace of mind even on rainy days. Notes: Depending on how the tools are placed, it may not stand upright. It is not completely waterproof. Tools are not included.

Product Use: This is a high-altitude work vehicle for indoor tasks such as construction work, equipment installation, electrical work, interior work, painting work, and plumbing work. Product Features: This next-generation high-altitude work vehicle is equipped with various detection functions, allowing it to travel with the work platform raised (up to 6.1m). It also has a slide deck, enabling the work platform to be extended by 460mm. Detection Functions: - Front and rear height difference detection function - detects height differences of 25mm or more - Front and rear obstacle detection function - detects a variation of about 15mm in the collision damper - Upper obstacle detection function - detects contact with limit switches (4 locations) ⇒ stops operation / triggers alarm Cautions: The use of a helmet and safety harness is mandatory during operation. Please prepare accordingly. The UX function serves as a safety assistance feature. Please ensure to check the operating instructions and have qualified personnel perform the work. License and Qualification Information: - Special Education Information: Special education for high-altitude work vehicles Inspection and Testing Information: - Regular self-inspection: Specific self-inspection

Product Use: A high-altitude work vehicle for indoor tasks such as construction work, equipment installation, electrical work, interior work, painting work, and plumbing work. Product Features: This next-generation high-altitude work vehicle is equipped with various detection functions, allowing it to operate with the work platform raised (up to 4.5m). Detection Functions: - Front and rear height difference detection function - detects height differences of approximately 25mm or more - Front and rear obstacle detection function - detects approximately 15mm deformation of the collision damper - Upper obstacle detection function - detects contact with limit switches (4 locations) ⇒ operation stops / alarm sounds Precautions: The use of a helmet and safety harness is mandatory during operation. Please prepare accordingly. The UX function serves as a safety assistance feature. Please confirm the operating instructions and ensure that qualified personnel perform the work. License and Qualification Information: - Special Education Information: Special education for high-altitude work vehicles Inspection and Testing Information: - Regular Self-Inspection: Specific Self-Inspection

"Kunijiro" is a rebar cleaning machine that allows for cleaning work while standing by using a backpack style, reducing the need to bend over. Unlike brush work, it does not splash and reduces dirt on work clothes, and by using a dedicated attachment (sold separately) brush, efficient cleaning is possible. Additionally, unlike brushes and buckets, it does not use excessive water, which helps maintain the quality of the concrete. [Features] ■ 2-way design: backpack and floor-mounted ■ Reduces physical strain ■ Works with a small amount of water *For more details, please download the PDF or feel free to contact us.

"Kamo-on" is a cart equipped with an operator automatic following function that realizes labor-saving in transportation work. It can carry up to 600 kg, making it easy to transport heavy items. Additionally, there are two types of driving modes: automatic following and manual control mode operated via a controller, allowing you to choose based on your needs. 【Features】 ■ Operator automatic following function ■ Simultaneous automatic following function for multiple units ■ Rechargeable with AC100V ■ Maximum load capacity of 600 kg ■ Maximum travel speed of 4.5 km/h *For more details, please download the PDF or feel free to contact us.

"Nikken's Gajyu Maru" is a wearable IoT service that enables managers, who oversee workers in the field, to implement "line care" by monitoring safety aspects such as accidents and changes in workers' health conditions. It allows for the understanding of an individual's "usual" state from daily data collected during work. It can also adjust for the gradual changes in "usual" states due to aging, and by comparing with past personal data, it can capture physical fatigue and changes in condition. Additionally, it can record potential "near misses" indicated by changes in pulse rate, making it possible to visualize areas that require attention. This allows experienced workers to pass on their knowledge of tension and urgency to less experienced workers by highlighting critical areas to watch out for. [Features] ■ Real-time monitoring of the health status of individuals working in a wide field ■ Calculation of each person's "usual" pulse rate, reflecting individual characteristics ■ Visualization of areas that require attention, such as "near miss maps" *For more details, please download the PDF or feel free to contact us.

"Position + Plus (R)" is a location information system that adds location data to people and objects both indoors and outdoors, allowing for easy centralized management of information necessary for construction management. By installing beacon devices that emit radio waves at various locations on the site and registering them on a server, the closest beacon serves as a reference point. The responsible person's iPad or log collection device communicates with the radio waves from the nearest beacon. This information is sent to the server, indicating that "the responsible person is in the vicinity of this beacon," and is shared accordingly. Unlike GPS, it can be used indoors, and this information can be utilized in various applications. 【Features】 ■ Can be used for regular corrective instructions and construction records ■ Reduces the hassle of searching for pre-completion photos ■ Cuts down the effort to find construction personnel and aerial work platforms ■ Allows management of aerial work platform reservation status on an iPad *For more details, please download the PDF or feel free to contact us.

"Himo-on" is an automatic follow cart equipped with an operator automatic following function, allowing for free route setting using retroreflective strings. It can easily transport heavy loads, contributing to labor-saving in transportation tasks. The running melody function notifies those around that it is in motion. 【Features】 ■ Route following function (sensed by retroreflective string) ■ Operator automatic following function ■ Simultaneous automatic following function for multiple units ■ Rechargeable AC100V ■ Maximum load capacity of 600kg ■ Maximum speed of 4.5km/h ■ Maximum operating time of 4h (charging time 9.5h) ■ Running melody function *For more details, please download the PDF or feel free to contact us.

"TO Gather®" is an autonomous cleaning robot that automatically collects debris that has fallen on the floor of construction sites, contributing to the labor-saving of cleaning operations. It recognizes four installed reflective markers with a laser sensor, automatically generating the cleaning area and cleaning route. It efficiently travels within the area to gather debris. It can collect waste within a 100m² space in under 30 minutes. 【Main Equipment】 ■ Laser sensor ■ Control panel ■ 7-inch monitor ■ Warning light ■ Battery level indicator ■ Controller (built into the rear storage compartment) ■ Safety devices ・ Emergency stop switch ・ Collision prevention sensor *For more details, please download the PDF or feel free to contact us.

"Dipper" is a construction site sediment management system that allows for data management of sediment volume through wireless communication with sensors. It eliminates the need for travel time to the station and visual inspection tasks, thereby improving work efficiency. Data can be checked on a computer, tablet, or smartphone, without the need for cumbersome app installation or setup. 【Features】 ■ By visualizing sediment volume with numerical data, it is possible to unify management criteria for collection decisions. ■ Alerts can be sent to multiple people when a certain sediment volume is reached. ■ The sensors are battery-operated, so no power supply is needed. ■ Sediment volume data can be saved in CSV format over time, which can be utilized for trend analysis and improvement activities. *For more details, please download the PDF or feel free to contact us.

We would like to introduce the high-altitude work vehicle UX "Kento" handled by Rent-a-Nikken Co., Ltd. It is capable of traveling while the work platform is elevated (up to 4.5m), and it is equipped with an UX function display board that shows the status of the operator's operation, regulation, and detection functions on an LED screen. Additionally, it has a function to detect front and rear differences in height, as well as front and rear obstacles and overhead obstacles when the work platform is elevated. 【Features】 ■ Front and rear height difference detection function: Detects height differences (up and down) of approximately 25mm or more ■ Front and rear obstacle detection function: Detects a variation of about 15mm in the collision damper ■ Overhead obstacle detection function: Detects contact from limit switches (4 locations) ■ Upper laser pointer ■ UX function display board *For more details, please download the PDF or feel free to contact us.

We would like to introduce the material transport and lifting equipment "Sky Table Diana" handled by Rent-Nikken Co., Ltd. It can be operated with either a wireless remote control or a wired remote control, and since it is not a high-altitude work vehicle, no operating qualifications are required. Additionally, by using the optional magnetic hook, it is possible to hang measuring tools and other equipment for use. 【Features】 ■ No operating qualifications required as it is not a high-altitude work vehicle ■ Capable of transporting up to 200 kg ■ Capable of lifting up to 4.5 m ■ Operable with either wireless or wired controls *For more details, please download the PDF or feel free to contact us.

Introducing the high-altitude work vehicle UX 'Kento' handled by Rent-a-Nikken Co., Ltd. It is capable of traveling while the work platform is elevated (up to 6.1m), and the work platform can be extended by 460mm using a sliding mechanism. Additionally, it features functions to detect front and rear height differences, front and rear obstacles, and overhead obstacles when the work platform is raised. 【Features】 ■ Front and rear height difference detection function: Detects height differences (up and down) of approximately 25mm or more ■ Front and rear obstacle detection function: Detects about 15mm of deformation in the collision damper ■ Overhead obstacle detection function: Detects contact from limit switches (4 locations) ■ Upper laser pointer ■ UX function display board *For more details, please download the PDF or feel free to contact us.

"SUMIDAS" is a marking robot that, when set at the end of the workday, can complete the marking work by the start of the next workday. It weighs less than 22 kg and uses a lithium-ion battery, allowing for 6 hours of continuous use. Additionally, it comes with safety features such as an emergency stop function in case of collision and an emergency stop button. 【Features】 ■ Weight is under 22 kg ■ Uses a lithium-ion battery, allowing for 6 hours of continuous use ■ Operating range is approximately 20m radius around a 3D measuring device (Wi-Fi communication limit) ■ Recording error is ±3mm ■ Work data is created on the cloud ■ Safety features include an emergency stop function in case of collision and an emergency stop button *For more details, please download the PDF or feel free to contact us.

The "Sakutto Barricade" is a barricade system that allows for the quick and easy establishment of restricted areas to prevent crane accidents. The previous task of arranging color cones and other items, which took time and effort, can now be completed swiftly with our magnet-fixed product. Simply stretch a rope or similar around the poles to complete the setup, and after installation, it can rotate as is. 【Features】 ■ Magnet-fixed ■ Aluminum telescopic poles ■ Can rotate as is after installation *For more details, please download the PDF or feel free to contact us.

We would like to introduce the electric mobile work platform "Sky Runner Apollo," handled by Rentall Nikken Co., Ltd. It can operate at a height of 1.95m while moving, and there is no need for fall protection equipment, making it easy to get on and off. Additionally, it comes with a picking tray on the work platform, allowing it to be used as a material storage area or workbench. 【Features】 ■ Can move while elevated ■ Easy to get on and off at a height of 1.95m without fall protection equipment ■ Comes with a picking tray on the work platform (manual type) ■ Manual height adjustment with 5 levels ■ Equipped with pothole protectors *For more details, please download the PDF or feel free to contact us.

The "Curtain Walker E" is a CW installation machine base that can be used on one floor instead of three floors, which it previously occupied during installation. It is easy to transport and compact, allowing for minimal removal of surrounding protective coverings. It has a maximum lift height of 3520mm, a maximum load capacity of 850kg, and an impressive reach of 1390mm, making it highly efficient for work. Additionally, we also offer the CW installation machine "Curtain Walker V." 【Features】 ■ Maximum lift height: 3520mm ■ Maximum load capacity: 850kg ■ Battery-powered & self-propelled ■ Easy to transport and compact ■ Excellent work efficiency with a long reach (1390mm) *For more details, please download the PDF or feel free to contact us.

We would like to introduce our digital thickness gauge, 'Slab±dunK'. It ensures accuracy with simple operation, reliably measuring slab thickness with a depth rod. Additionally, it supports data transfer via Bluetooth, allowing measurement results to be sent to a dedicated app. 【Features】 ■ Reliable measurement of slab thickness with a depth rod ■ Transfer measurement results to a dedicated app ■ Measurement and photography can be done by one person ■ Measurement units can be switched between cm and m *For more details, please download the PDF or feel free to contact us.

We would like to introduce the material transport and lifting equipment, "Sky Table Diana," handled by Rent-a-Nikken Co., Ltd. It can lift loads up to a maximum height of 6.0m and can transport up to 250kg. Additionally, by using the optional magnetic hook, it is possible to hang measuring tools and other equipment for use. 【Features】 ■ No operation qualifications required as it is not a high-altitude work vehicle ■ Can be operated wirelessly or with a wired connection ■ Capable of transporting up to 250kg ■ Can lift loads up to 6.0m *For more details, please download the PDF or feel free to contact us.

We would like to introduce our construction and civil engineering staff bag, 'KENdoSEL'. This all-in-one bag allows for the organized management and carrying of tools, stationery, and tablet devices necessary during site inspections. Additionally, the tool storage carrier is detachable, and the back of the carrier features a blueprint holder and board function. 【Features】 ■ Vertical stand-alone ■ Waterproof ■ Detachable tool storage carrier ■ Water-resistant zipper ■ Storage rubber loops *For more details, please download the PDF or feel free to contact us.

The "Katawaku Tonton" is an electric hammer attachment that can strike more firmly than a wooden mallet and is convenient to handle. Unlike conventional external vibrators and formwork vibrators, it is lightweight and easy to carry. Additionally, being battery-operated eliminates the need for a power cable, and since striking is not required, it can be used in tight spaces. 【Features】 ■ Can strike firmly in narrow areas ■ More effective than a wooden mallet and easy to handle ■ The electric hammer body is available for rent *For more details, please download the PDF or feel free to contact us.

We would like to introduce our CW installation machine, the "Curtain Walker V." It is possible to minimize the floor area required for perimeter protection removal. This reduces the work of placing the curtain wall flat on the floor. Additionally, we also offer the "Curtain Walker E" and "1.5T Forklift with dedicated attachment" as base models. 【Features】 ■ Minimizes the floor area required for perimeter protection removal (from 3 floors to 1 floor) ■ Reduces the work of placing the curtain wall flat on the floor *For more details, please download the PDF or feel free to contact us.

Table lift dedicated hand pinching prevention device - Easy to carry (approximately 2.4 kg) - Can be installed in under 1 minute (easy installation for anyone)

Product Description and Features Product Use: By attaching it to heavy machinery such as cranes, aerial work platforms, forklifts, and backhoes, it can be utilized to prevent contact with ceilings and people, as well as to prevent pinching. Product Features: It uses a powerful magnet, battery operation, and Bluetooth communication, making installation easy as no wiring is required. In the case of the monitor version, up to four sensors can communicate simultaneously with one unit. Accessories: The monitor is optional. If you are using it with the monitor version, please select from the accessories.

The "Saku tto Barricade Mini" can be directly attached to machinery with magnets to establish restricted entry areas around cranes and aerial work platforms. It allows for easy magnetic attachment and can swing and extend 180 degrees to the left and right. It can also be moved while still attached. Please feel free to contact us when you need assistance. 【Features】 ■ Magnet-fixed and aluminum telescoping pole for easy setup in a short time ■ Simply run a rope or similar material around the aluminum telescoping pole to complete the setup ■ Can be moved and turned as is after installation ■ Number of units used can be adjusted according to site conditions ■ Reduces workload and significantly improves work efficiency *For more details, please download the PDF or feel free to contact us.

High Rider Boom Lift Safety Device to Prevent Hand Pinching - Easy to carry (approximately 4.8 kg) - Can be set up in under a minute (easy setup for anyone) - Surrounded on four sides, so it's safe to hold onto any railing

This product is a safety measure to prevent accidents when traversing a slope for eliminating height differences. - By placing this product on the slope, anyone can easily check whether it is safe to traverse. - It is card-sized, making it convenient to carry.

Traditionally, after unloading with a crane on a truss-reinforced deck (ferro deck), only manual transportation was possible, and people were constantly carrying heavy items like rebar. In such an environment, we considered and developed a way to efficiently deliver using a cart. Origin of the product name: We derived the name from "Liberty" (= freedom) and "Buggy" (= a vehicle that runs on rough terrain, like a sandy beach). Thus, we named the product "LiBuggy."

Significantly reduce the hassle and burden of tire cleaning! Easy installation just by placing it, even in narrow spaces! By installing it at the entrance of the site, dirt can be removed while remaining in the vehicle! A product aimed at labor and energy savings through automation. *For more details, please download the PDF or feel free to contact us.

Positioning accuracy… a few millimeters to a few centimeters! Since observations are made using GNSS, height measurements can be taken! This can be used for dynamic observation of cut and fill during construction, monitoring of tunnel construction entrances, dynamic observation of infrastructure structures, displacement measurement of soil walls in retaining wall construction, and impact assessment on adjacent buildings due to excavation work in urban areas, among other applications. 【Features】 ■ Strong against obstacles, capable of positioning even in narrow fields of view ■ Easy installation, maintenance-free ■ Low cost and high-precision positioning

【Features】 ● Simple compression ● Reduction of staff workload ● Reduction of collection and transportation *For use with mobile carts only. When used together with our company's stacking management system "Dipper," further labor and effort savings can be achieved!

In the construction industry, the installation of ceiling materials is a time-consuming and labor-intensive task. Processes such as scaffolding setup, material transportation, installation, and removal can increase the burden on workers and potentially lead to delays in the construction schedule. The Sky Table Diana was developed to address these challenges. 【Usage Scenarios】 - Installation of ceiling materials - Transportation of materials to upper floors - Improving work efficiency at heights 【Benefits of Implementation】 - Reduction in work time - Decrease in worker burden - Improvement in safety

In the event industry, there is a demand for reducing the time and effort involved in setup. In particular, the installation of ceiling materials requires a lot of labor and time for the setup and removal of scaffolding and stands, making efficiency a challenge. The Sky Table Diana can transport and lift ceiling materials remotely, contributing to the efficiency of setup work. 【Usage Scenarios】 - Lifting work during truss installation - Installation of ceiling materials at event venues - Setup of exhibition booths - Installation of lighting and sound equipment 【Benefits of Implementation】 - Reduction in work time - Decrease in labor costs - Improvement in safety

In the plant maintenance industry, safe and efficient work is required. Particularly in the replacement and inspection of ceiling materials, it is important to reduce the risk of falls due to lifting and to shorten work time. Traditional scaffolding installation has been a factor that takes time and effort, leading to decreased work efficiency. The Sky Table Diana is designed to safely and easily transport and lift ceiling materials. 【Usage Scenarios】 * Maintenance work on ceilings, piping, and equipment within the plant * Material transportation work at heights * Work in narrow spaces 【Benefits of Introduction】 * Reduction of risks associated with high-altitude work * Shortening of work time * Improvement of work efficiency

In bridge inspection work, work efficiency and safety at heights are crucial. Transporting materials to inspection points increases the burden on workers and takes time. The Sky Table Diana facilitates the transportation of materials and contributes to the overall efficiency of inspection work. 【Usage Scenarios】 - Lifting operations on bridge girders 【Benefits of Implementation】 - Reduction in work time - Decrease in worker burden - Improvement in safety

In the plant industry, accurate marking work is essential for the precise installation of piping and equipment, as well as for ensuring a safe working environment. Particularly, working at night or in dark areas can increase safety risks for workers due to reduced visibility. Errors in marking can lead to serious accidents, making accuracy and efficiency critical for safety management. The marking robot 'SUMIDAS' enables precise marking work even in darkness, ensuring the safety of workers. 【Usage Scenarios】 - Marking work at night or in dark areas - Installation of piping and equipment within the plant - Sites where safety management is prioritized 【Benefits of Implementation】 - Improved safety for workers - Reduced work time - Enhanced work accuracy

In the warehouse industry, efficient space utilization and improved work efficiency are required. Accurate marking is essential when changing layouts, but manual work is time-consuming and labor-intensive, making human errors more likely. Delays in marking work can lead to stagnation in overall operations and may result in decreased productivity. The marking robot 'SUMIDAS' addresses these challenges and streamlines warehouse layout tasks. 【Usage Scenarios】 * Arrangement of shelves and equipment within the warehouse * Marking of picking area sections * Displaying forklift travel routes 【Benefits of Implementation】 * Reduction in work time * Decrease in labor costs * Improvement in work accuracy

In the event setup industry, there is a demand for faster venue setup. Particularly, performing accurate marking work within a limited time is a crucial factor that influences the success of an event. Manual marking is not only time-consuming and labor-intensive but also prone to errors due to human mistakes, making efficiency a challenge. The marking robot 'SUMIDAS' can be set up at the end of the workday, allowing the marking work to be completed by the start of business the next morning. 【Usage Scenarios】 * Event venue layout * Exhibition booth setup * Installation of temporary structures 【Benefits of Implementation】 * Reduction in work time * Decrease in labor costs * Improvement in work accuracy

In the warehouse industry, there is a demand for improved efficiency and safety in product storage. In particular, debris and foreign objects on the floor caused by movement, such as forklifts, can not only threaten the safety of workers but also lead to product damage and a decrease in inventory management accuracy. The autonomous cleaning robot 'TO Gather(R)' automates floor cleaning within warehouses, addressing these challenges. 【Usage Scenarios】 - Aisles within the warehouse - Inventory storage areas - Shipping and receiving areas - Forklift travel areas 【Benefits of Implementation】 - Reduction in cleaning time - Improved safety for workers - Enhanced accuracy in inventory management - Improvement of the working environment

In factories, floor cleaning is an important factor that affects work efficiency. In particular, cleaning in large spaces such as manufacturing lines and warehouses requires time and effort, which can lead to a decrease in productivity. The autonomous cleaning robot 'TO Gather(R)' automatically recognizes the cleaning area and efficiently collects waste, thereby reducing the burden of cleaning tasks and contributing to increased productivity. 【Usage Scenarios】 - Around manufacturing lines - Warehouses - Material storage areas 【Benefits of Implementation】 - Reduction in cleaning time - Decrease in labor costs - Alleviation of worker burden

In the construction industry, rust on rebar is a significant problem that reduces the strength of concrete. In particular, rust that forms on rebar before pouring can hinder adhesion to the concrete and negatively impact the durability of structures. Traditional rust removal methods typically involve manual brushing or high-pressure washing, which are time-consuming and labor-intensive, and there are concerns about the adverse effects on concrete due to excessive water use. The rebar cleaning machine "Kinjirou" allows for standing operation with a backpack design, achieving efficient rust removal. It can clean with a small amount of water, ensuring that the quality of the concrete is not compromised. [Usage Scenarios] - Rust removal from rebar before pouring - Cleaning rebar contaminated with fresh concrete - Maintenance of rebar in bridges, tunnels, and buildings [Benefits of Implementation] - Reduction in work time - Decreased burden on workers - Improved durability of concrete structures - Water conservation

In the civil engineering industry, the durability of structures is a very important factor. Concrete debris and foreign substances adhering to rebar can accelerate the deterioration of structures. In particular, rust on rebar significantly reduces durability, making its removal essential. Traditional cleaning tasks involve labor-intensive work done while bending over, which can lead to decreased work efficiency and potentially compromise the quality of the concrete. The rebar cleaning machine "Kinjirou" allows for cleaning while standing, significantly improving work efficiency. Additionally, it can clean with a small amount of water, helping to maintain the quality of the concrete and contribute to the improvement of the durability of structures. 【Usage Scenarios】 - Cleaning vertical rebar in substructures - Cleaning rebar at construction sites - Infrastructure maintenance such as bridges and tunnels - Repair work on concrete structures 【Benefits of Implementation】 - Reduced burden on workers - Shortened work time - Improved durability of concrete structures - Cost reduction

In the bridge repair industry, cleaning rebar is essential to prevent rust and concrete delamination during the repair of aging bridges. Particularly in bridge repairs, where work is often done at heights or in confined spaces, work efficiency and safety are crucial. Traditional rebar cleaning tasks often require bending over, which places a heavy burden on workers and results in low work efficiency. Inadequate rebar cleaning can potentially affect the durability of repairs. The rebar cleaning machine "Kinjirou" is a backpack-type device that allows for cleaning while standing, reducing the burden on workers. Additionally, it can clean with a small amount of water, improving work efficiency while maintaining the quality of the concrete. 【Usage Scenarios】 - Cleaning rebar during concrete pouring for new bridge construction - Cleaning rebar in confined spaces 【Benefits of Implementation】 - Reduced burden on workers - Improved work efficiency - Maintenance of concrete quality - Enhanced durability after repairs

As an energy-saving measure for office buildings, it is important to upgrade to high-performance curtain walls. In curtain wall installation work, there is a demand for shortened construction periods and ensured safety. By consolidating work that traditionally occupied three floors into one floor, we contribute to the efficiency of energy-saving renovation projects. 【Usage Scenarios】 - Renovation work for office building curtain walls - New installation work for curtain walls in high-rise buildings - Renovation work aimed at improving energy-saving performance 【Effects of Implementation】 - Cost reduction through shortened construction periods - Energy-saving effects from reducing the number of work floors - Improved safety - Increased productivity

In the civil engineering industry, pile driving work requires accuracy and efficiency. Particularly, working in narrow spaces and minimizing vibrations are important for reducing the burden on workers and ensuring safety. The formwork hammer can drive piles more efficiently than a wooden mallet and is suitable for work in confined areas. Rental of the electric hammer unit is also available. 【Usage Scenarios】 - Pile driving work - Assembly of formwork - Work in narrow spaces 【Benefits of Introduction】 - Reduction in work time - Decrease in worker burden - Improvement in safety