中部コーポレーション List of Products and Services

By installing a lock on the handle of the manhole cover, the manhole handle cannot be accessed, making it impossible to open and close the cover. *Although the manhole cover is only held in place by its own weight and there is no locking mechanism, blocking the handle makes it difficult to open and close, thus providing a deterrent against theft.*

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If a bolt-fixed manhole cover is installed, it can be easily locked by changing just one of the bolt parts to a special lock bolt. The cover cannot be opened without using a dedicated handle. Since it is possible to implement measures simply by replacing the lock bolt even on already installed manhole covers, it is also suitable for retrofitting. Opening and closing is done using the special handle.

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We have added a type of slotted filling groove cover and manhole cover made of durable steel that is reasonably priced and can be securely fixed with bolts. We offer options for colored paving tiles and interlocking blocks, available in various sizes. These are recommended for areas troubled by rattling or noise.

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Please use it for the pit covers of piping in the factory. In many cases, forklifts, which have a smaller tire contact area than large vehicles weighing 25 tons, experience more severe load conditions, especially in areas where there are frequent steering changes. This can lead to the main components of the grating collapsing, making it difficult to select the right product. The load conditions suitable for counterbalance forklifts (reach trucks are not applicable) are set according to our standards, and we have standardized products that have checker plates (tread plates) attached to the top surface of the grating. By attaching the checker plates, there is no concern about the collapse of the main components of the grating, allowing for safe use even in harsh traffic environments such as factories and logistics warehouses.

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Since it meets the performance criteria for a fire-resistant structure (floor) of 2 hours, it also possesses "1-hour flame resistance." Due to the integrated structure of the lower cover and fire-resistant cover, the height of the product is minimized, allowing it to adapt to various slab heights. The fire-resistant hatch is compatible with all large-diameter machine hatches (excluding extra-large diameter machine hatches).

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This is a steel permeable gutter that can be used as auxiliary drainage for drainage ditches in locations where it is difficult to draw drainage routes. It comes standard with a locking feature to prevent noise and rattling. An optional screen is available to suppress debris and fallen leaves from falling through the gaps in the grating. For more information, visit: https://www.chubu-net.co.jp/kenzai/Product/detail/US190

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This is a receiving frame for drainage pits used in food factories and kitchens with long sheet flooring finishes. The feature of this frame is that it clamps the long sheet, adopting a new method that solves problems such as bubbling, peeling, and water leakage associated with conventional methods. ■ Features of the Long Sheet Clamping Method - The cut edges of the sheet are not exposed. - Absorbs thermal expansion. - Improves construction quality with a B material flush finish (patented) → Prevents cracking and does not cause water infiltration into the structure. - Water channels are secured between the packing of the piece materials (patented). - Water channels are secured between the packing of the piece materials (patented). For more details, visit here: https://www.chubu-net.co.jp/kenzai/Product/detail/PT187

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The "Ultra-Fine Joint Type Floor Hatch" is an ideal floor inspection hatch for the approaches of single-family homes and apartment buildings. Let me introduce its features. First, the most significant characteristic of this product is that it can support vehicle traffic of up to 2000 kg in total weight. It is also perfect for decorative purposes for inspection resin sewage and rainwater manholes. Due to its fine joints, it can harmonize with surrounding finishing materials, achieving an aesthetically pleasing installation. Furthermore, this product is highly durable. Made of stainless steel, it can be used for an extended period. The differences from existing products include the ability to support vehicle traffic of up to 2000 kg and the adoption of ultra-fine joints. This results in a product that combines higher functionality with aesthetic appeal. The "Ultra-Fine Joint Type Floor Hatch" is recommended for those who want to finish the approaches of single-family homes and apartment buildings beautifully and safely.

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The "Ultra-Fine Joint Type Floor Hatch" is ideal for inspection openings around the building's floor and entrance area. This product features narrow joints that harmonize with the surrounding finishing materials, achieving beautiful design aesthetics. In general floor hatches, the width of the joint area is often wide, making it difficult to maintain balance with the finishing materials. The "Ultra-Fine Joint Type Floor Hatch" resolves such issues. Due to the narrowness of the joints, the visual difference with the surrounding finishing materials is hardly noticeable. It allows for a beautiful finish without compromising the overall design and atmosphere of the building. Furthermore, by using stainless steel materials, it excels in durability. It is also suitable for use on outdoor walkways, maintaining its beautiful condition over a long period. The "Ultra-Fine Joint Type Floor Hatch" is a floor inspection opening that achieves a beautiful finish and excels in design aesthetics.

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The "Tile Filling Urban Trench" is a drainage unit that allows for tile filling. It has a significant feature of eliminating the need for traditional formwork construction and concrete pouring, thereby shortening the construction period. The length of the receiving frame is set to 900mm to easily accommodate 300mm tiles, making it excellent for aligning the surrounding tile joints during installation. By filling the trench with tiles, it provides a visual sense of security to passersby without being aware of the trench itself. Made of stainless steel, it is highly durable and can achieve both aesthetic appeal and drainage functionality. Please try the "Tile Filling Urban Trench," which creates new charm tailored to customer needs.

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The "Gravel-Filling Urban Trench" is a drainage unit that allows for the filling of gravel. It eliminates the need for traditional formwork construction and concrete pouring, thereby shortening the construction period. Moreover, you can fill it with your preferred gravel directly. Made of stainless steel, it boasts excellent durability while achieving both aesthetic appeal and drainage functionality. By installing it at entrances around buildings, it serves as an accent to the paved surface and stylishly enhances the foot space. Please try the "Gravel-Filling Urban Trench," which creates new charm tailored to customer needs.

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The keyed high-grip type handhole cover is a cast iron lid for electrical equipment. This handhole cover features a simple sealed fitting structure, and additionally, the surface of the handhole cover is designed with a special non-slip pattern. This allows for safe passage even in slippery conditions. Furthermore, because it is keyed, it offers excellent security. It can be opened and closed using a dedicated key, preventing unauthorized access. This makes it suitable for use in public places and schools where security is required.

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The stainless steel grating with noise prevention bolt fixation is used as a beautiful line-appealing exterior drainage cover. It has a luxurious feel, and by eliminating the cutouts in the bolt fixation area, it allows for a beautiful stainless steel line to run through, giving a sharp impression. Stainless steel is resistant to rust and durable. Due to its excellent durability, it can maintain its aesthetic appeal even after long-term use. The feature of bolt fixation ensures that the grating and the receiving frame are securely fixed with bolts, maintaining a stable condition without any wobbling of the grating. This minimizes rattling and unpleasant metallic sounds that occur during walking or vehicle passage. The stainless steel grating with noise prevention bolt fixation can be considered an ideal grating for public buildings, commercial facilities, plaza areas in front of stations, and residential entrances due to its strength, durability, aesthetic appeal, and noise prevention features.

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■What is a manhole drop accident? A manhole drop accident refers to an incident where a manhole cover becomes detached and falls into the underground. Particularly, accidents involving square manholes (such as decorative iron covers) have been frequently reported, drawing attention to their dangers. ■Examples of manhole cover drop accidents A worker attempted to open a square manhole cover, but the cover fell into the manhole. A passerby walking on the road fell into a hole due to the absence of a manhole cover and sustained serious injuries. ■Impact and dangers of manhole drop accidents - There is a risk of injury or death to workers and passersby. - It may cause traffic accidents. - It can lead to equipment failures or water leaks in the manhole. ■Measures for safe manhole work Manhole work is extremely dangerous. In particular, manhole cover drop accidents can lead to serious incidents. Therefore, appropriate measures are necessary to conduct safe manhole work. One of the most important measures in manhole work is the use of fall prevention devices. Fall prevention devices serve to prevent cover drop accidents.

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■Examples of Accidents During Manhole Work - A passerby walking on the road fell into a hole due to the absence of a manhole cover and sustained serious injuries. ■Impact and Dangers of Manhole Fall Accidents - There is a risk of injury or death to workers and passersby. - It can potentially cause traffic accidents. ■Measures for Safe Manhole Work Manhole work is extremely dangerous. Therefore, appropriate measures are necessary to conduct safe manhole work. Round manhole covers will not fall if they are not damaged, but leaving the cover open during inspections poses a risk of workers falling. Installing fall prevention nets at the manhole opening not only prevents workers from falling into the opening but also ensures a safe working space for them.

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This is a U-shaped drainage cover that covers the top of the U-shaped drain and reduces the accumulation of debris in the gutter. The "Yamagata Cover," which adopts a triangular shape, is designed to prevent debris from accumulating, keeping the gutter clean. It can be used as a measure to reduce debris in installed U-shaped drains that are not primarily for pedestrian use, as well as to prevent accidents from people falling in at night. oct-Gs Concept The "gutter," which is close to us, plays an essential role as a supporting actor on the roadside for the smooth drainage of rainwater. However, along with rainwater, fallen leaves and debris also flow down, which can reduce drainage capacity and cause overflow, as well as lead to water pollution and marine debris when garbage is drained from the gutter. At CHUBU, we have developed the "oct-Gs" series with the concept of "stopping debris just by placing it." We are promoting efforts to reduce debris that falls into gutters, guide rainwater into an appropriate circulation cycle, eliminate the causes of marine debris, and protect the richness of the sea. We support the creation of a town where everyone can continue to live safely and securely from the ground up.

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The "GP Cover" is a grating with a cover that minimizes gaps, suppresses littering of cigarettes and trash, and reduces the accumulation of debris in drainage ditches. It is approximately 40% lighter and more affordable compared to fine-mesh grating, offering excellent cost performance. The surface is treated with a non-slip finish using half shear, ensuring safe passage. oct-Gs Concept The "drainage ditch" that is close to us plays an essential role as a supporting actor on the roadside, facilitating the smooth drainage of rainwater. However, along with rainwater, fallen leaves and trash can flow down, leading to reduced drainage capacity and overflow, as well as water pollution and marine debris due to trash being discharged from the ditch. At CHUBU, we have developed the "oct-Gs" series with the concept of "just place it to stop trash." We are promoting efforts to reduce litter falling into drainage ditches, guide rainwater into a proper circulation cycle, eliminate the causes of marine debris, and protect the richness of the ocean.

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The "GR Screen" is a grating screen that is installed by placing a screen between the grating cover and the receiving frame. It suppresses debris falling through the gaps in the grating and reduces the accumulation of waste in the drainage ditch. Additionally, if you drop keys, coins, or a smartphone, you can retrieve them without removing the grating. oct-Gs Concept The "drainage ditch," which is close to us, plays an essential role as a supporting actor on the roadside, facilitating the smooth drainage of rainwater. However, along with rainwater, fallen leaves and debris also flow down, which can lead to reduced drainage capacity and overflow, as well as water quality pollution and marine debris due to waste being discharged from the drainage ditch. At CHUBU, we have developed the "oct-Gs" series with the concept of "just place it to stop waste." We are promoting efforts to reduce debris falling into drainage ditches, guide rainwater into a proper circulation cycle, eliminate the causes of marine debris, and protect the richness of the sea. We support the creation of towns where everyone can live safely and securely from the ground up.

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Lockable decorative manhole covers are iron covers that excel in security and safety among decorative manhole covers. Here, we will introduce their usage scenarios and benefits. First, lockable decorative manhole covers are ideal for use in public places or facilities where a large number of people may have access. For example, they may be used in parks or squares in front of stations to prevent theft or vandalism. By introducing lockable decorative manhole covers, it is possible to prevent unauthorized opening and closing, which enhances safety and security. Furthermore, these covers can be locked and unlocked using a dedicated key handle, reducing the burden on managers. Decorative manhole covers that employ a roller slide opening and closing mechanism are easy to open and close and are also excellent in terms of maintenance. "Lock Installation" Procedure [Video] https://youtu.be/UXi6T4rp2n8

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By eliminating the presence of the manhole cover from the surface, a sense of unity with the finishing materials around the building is created, resulting in a beautiful finish. This is ideal for urban spaces, squares in front of stations, and commercial facilities that prioritize design. It is available for T-2 load capacity, with options for pedestrian use, as well as for drainage ditches and catch basins.

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In grating, forklifts, which have a smaller tire contact area than 25-ton large vehicles, often experience more severe load conditions, especially in areas with frequent steering changes where the main components of the grating may collapse, leading to challenges in product selection. The load conditions suitable for counterbalance forklifts (reach trucks are excluded) are set according to our company standards, and we have standardized products that feature checker plates (chequered steel plates) attached to the top surface of the grating. By attaching the checker plates, there is no concern about the collapse of the main components of the grating, allowing for safe use even in harsh traffic environments such as factories and logistics warehouses. - As an option, handle hole processing and recessed handles are available. Please use one lid for every ten pieces for opening and closing. - The applicable load is set with an impact coefficient (i) of 0.4 for both cross ditches and side ditches.

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It complies with the JIS-type U-shaped drainage channel, and by simply dropping the Tomenite into the U-shaped channel, it can catch debris such as dead branches, fallen leaves, and empty cans. The opening rate of the Tomenite is 23%, allowing it to capture small waste, thereby increasing the waste collection rate. It can also be used in channels within buildings. When waste accumulates, the Tomenite tilts, making it visually clear when maintenance is needed, allowing for efficient cleaning. The material used is a corrosion-resistant galvanized steel sheet coated with a zinc-aluminum-magnesium alloy. For more details, please contact us or refer to the catalog.

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This is a large-diameter vehicle stop designed to protect areas near the loading entrance of logistics centers, indoor entrances and exits, and fire hydrants. With a height of 1.5 meters from the ground, it visually encourages the prohibition of passage. The material used is steel pipe, which balances cost performance and strength, and the standard color is a prominent yellow. White and yellow-black (commonly known as tiger color) options are also available. There are two installation methods: an embedded type that can be securely fixed and a base type that is easy to install afterward. Additionally, a concrete-filled option is available, which makes the post less likely to deform upon contact with vehicles by filling the inside of the post with concrete. It is suitable for guarding forklifts and vehicles.

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This is a drain for PVC sheet waterproofing that can be welded using a hot air machine, featuring a drain body that has been pre-coated with a PVC film. It adopts a wide flange body with a waterproof layer installation width of 50mm or more, which improves adhesion and achieves a high waterproof effect. When installing PVC sheet waterproofing, be sure to choose a roof drain compatible with PVC sheet waterproofing. For detailed installation methods, please refer to this video: https://youtu.be/BVDvR5hfPys For more information, please contact us or refer to the catalog.

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This is a roof drain that uses a wide body with a flange width of 100mm or more. It improves adhesion to the waterproof layer, making it less likely to cause leaks from the edges of the waterproof layer, ensuring reliable rooftop waterproofing. ● For more details, please contact us or refer to the catalog.

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【Features】 Power Floor is ideal for equipment floors around cooling and heating units, various maintenance decks, factory walkways, and stairs. It is lightweight, high-strength, and highly corrosion-resistant, making it suitable for various locations. Additionally, the geometric hole shape design and low-gloss finish provide high aesthetic appeal, expanding its applications to exterior panels of buildings and concealment panels for emergency stairs. ● For more details, please contact us or refer to the catalog.

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This is a medical console that compactly stores medical gas outlets, switches, outlets, etc., making it functional, versatile, and also considerate of ease of installation. Taking into account the width of the bed, the suction bottle is designed to extend outside the bed, and the console length is set at 1300mm. The switches are positioned on the underside to enhance convenience, allowing patients to operate them while lying down. For more details, please contact us or refer to the catalog.

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I want to create a sense of unity between the living room and the tiled terrace by making them flat. However... I'm worried about underfloor ventilation... I'm concerned about construction that touches the building's exterior walls... Do you have such concerns? Our "ventilation grating," which adopts a cantilever structure that does not directly touch the building, allows for complete construction in the exterior work. Since the building and terrace are completely separated, there is no damage to the building. Additionally, it ensures ventilation between the foundation and the building, allowing you to use it with peace of mind. As a company that specializes in grating as our main product, we ensure strength while minimizing gaps, allowing for seamless movement between the tiled terrace and the interior without being conscious of the grating.

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This is a tree protection cover that can be filled directly with decorative gravel. There are two sizes available, 600 and 900, to match tile sizes. The cover has drainage holes, making it suitable for use with planters and other installations.

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The "drain cover for standpipes" that allows for direct filling with decorative gravel can be opened and closed while filled with gravel, as the water receiver and frame are detachable. The water receiver has a handle, making it easy to detach and facilitating maintenance. Since it sits flush with the ground surface, it allows for walking close to the standpipe, creating an open feel in the garden, making it suitable for compact gardens, and can be used as an accent in exterior design. There are two sizes available, 300mm x 300mm and 450mm x 450mm, designed to fit various flooring materials.

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This is a cantilever stainless steel frame that reduces construction effort by allowing level adjustment from the top. Since there is no frame on the sash side, the boundary line with the building side is beautifully finished. Additionally, the brackets can be removed, enhancing maintenance convenience.

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Long-length PVC sheet flooring finishes are increasing in food factories and kitchens. This is a stainless steel receiving frame compatible with PVC welding to reliably prevent water leakage from the joint between the receiving frame and the long-length PVC sheet when installing drainage covers.

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This is a dedicated pit cover that covers the drainage channel of the shared corridor in a condominium, designed for cases where installation was not initially planned or where installation becomes necessary due to renovation work. It is easy to install as it requires no supporting frame and is fixed on one side. It ensures a safe passage while maintaining the width of the corridor. ■ Product Information 〇 This is a dedicated pit cover that covers the drainage channel of the shared corridor in a condominium, designed for cases where installation was not initially planned or where installation becomes necessary due to renovation work. 〇 It can be installed on drainage channels that are 130mm or less in width.

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■Features ● Can be freely constructed from straight lines to curved surfaces. The straight sections have a solid stability with a steel core, while the curved surfaces can flexibly adapt without a steel core. ● By using corner components for inside and outside corners, a sharp finish can be achieved. ■Product Information ● Unifying the baseboard and crown molding with the same material creates a sense of cohesion in the room. ● The compact design allows it to blend seamlessly into the room's space. ● Installation can be done using a combination of adhesive and hidden nails.

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Are you having trouble with "voices" and surrounding "sounds" during web meetings? The "soundproof partition" is a new work style that improves the "voices" and "sounds" that have been increasing during web meetings in recent years. Do you have any of these concerns in your office environment? - There is no dedicated room for web meetings. - When at your desk, your voice leaks out, making it hard to concentrate on the meeting... - You can't focus on your work because of distracting surrounding sounds... - You used a simple soundproof partition but didn't feel any effect... Our product uses 50mm thick urethane soundproofing material and features a top panel to address the concerns mentioned above, making it a soundproofing solution for offices. We contribute to the new challenge of "soundproofing in the office" that has arisen from the new normal way of working. ★ You can check the "soundproof test results" in the video at the URL below.

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Do you have concerns about "voices" or surrounding "sounds" during web meetings? The "Soundproof Head Cover" is a new work style that improves the "voices" and "sounds" that have been increasing during web meetings in recent years. Do you have any of the following concerns in your office environment? - There is no dedicated room for web meetings. - When at your own desk, your voice leaks out, making it hard to concentrate on the meeting... - You can't focus on your work because of distracting surrounding sounds... - You used a simple soundproof partition but didn't feel any effect... Our product uses 50mm thick urethane soundproofing material and is designed as a soundproofing solution for offices to address the concerns mentioned above. We contribute to the new challenge of "office soundproofing measures" that has arisen from the new normal way of working. ★ You can check the "soundproof test results" in the video at the URL below.

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The roof drain for installation has a waterproof layer width of 100mm or more, allowing for more reliable attachment of the waterproof layer. The coating on the cast iron roof drain uses epoxy resin and is treated with cationic electrodeposition coating (CHUBU Super Coat = CS Coat). The threaded section has a tapered pipe thread. It can also be used as exposed waterproofing. The waterproof layer holder has a groove for drainage, ensuring smooth drainage. If you need to change the specifications to a plug-in connection pipe, please use a tapered sleeve pipe. The main body and waterproof layer holder are common across all sizes. For more details, please contact us or refer to the catalog.

• Piping Materials
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The paint for the cast iron roof drains uses epoxy resin and is coated with cationic electrodeposition (CHUBU Super Coat = CS Coat). The main body is common across all sizes. We offer various models including CRMP-1S for rooftops, CRMLP-1S for floors and rooftops, CFMP-1S for corridors and landings, CBMP-1S for balcony relay, CBMP-1SB with splash prevention rubber for balcony relay, and CWMP-1S for splash prevention type drains for balcony relay, among others. For more details, please contact us or refer to the catalog.

• Piping Materials
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The corner drain has been minimized in dimension E to avoid interfering with the slab reinforcement. Please use a valve socket when connecting a VP pipe to the catch basin. The stable support for driving is made using P components from the formwork assembly, allowing for easy installation regardless of the worker's skill level. When driving the corner drain, using this support can help prevent tilting (horizontal or downward) of the main body before and during concrete placement. For more details, please contact us or refer to the catalog.

• Piping Materials
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The bolt lock type floor hatch is an access point for underfloor inspection that excels in security and safety among floor hatches. Here, we will introduce its usage scenarios and benefits. First, the bolt lock type floor hatch is ideal for use in places where a specific large number of people may have access, such as in various facilities. For example, it is often used in public facilities and educational institutions to prevent theft and vandalism. By introducing a bolt lock type floor hatch, it is possible to prevent unauthorized opening and closing, which enhances safety and security. Additionally, it can be locked and unlocked using a dedicated key handle, reducing the burden on administrators. The lid and frame are equipped with rubber packing at the fitting part and are forcibly fixed with bolts, providing high airtightness and excellent waterproof and odor-proof effects, thus protecting various equipment. Bolt lock type floor hatch opening and closing method [Video] https://youtu.be/OcEnZOHWp4U For more details, please contact us or refer to the catalog.

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The cable pit for P tiles is designed to support complex underfloor wiring systems in diverse environments such as offices, supermarkets, and hospitals. It can be finished to match the surrounding P tile flooring, maintaining the aesthetic of the floor surface. The dedicated frame is equipped with cushioning material as standard, designed to prevent rattling during walking. ● For more details, please contact us or refer to the catalog.

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Rust-resistant and beautiful stainless steel grating enhances the aesthetics of buildings and the surrounding landscape. It also fits as a drainage cover around exteriors, complementing garden greenery, flowers, and lighting fixtures. Please use it as a trench cover. It is suitable for areas where people typically pass, such as building entrances and exits. For more details, please contact us or refer to the catalog.

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Drainage pits are actively used in kitchens of restaurants, hotels, hospitals, as well as in food service centers and bathrooms. Common drainage pits typically use concrete drainage channels, but food scraps can remain on the sides, bottom, and corners of the channel, and sediment can occur from cracks in the concrete, leading to the risk of bacteria proliferation and loss of sanitary effectiveness. By predicting potential points of contamination, such as bacterial growth, and managing them intensively, stainless steel clean troughs that incorporate the HACCP (Hazard Analysis and Critical Control Points) method can minimize the adherence of food scraps and bacteria, keeping the channels clean. For more details, please contact us or refer to the catalog.

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The "F-BOX" not only features visibility in emergencies, storage functionality for fire extinguishers, and integration with space design, but it also reflects the genuine voices of our customers, achieving easy installation and quick construction. At CHUBU, we will continue to create environments and product designs that are easy for everyone to use. For more details, please contact us or refer to our catalog.

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• Other safety and hygiene products

The "F-BOX floor-standing type" considers not only visibility in emergencies and the storage function for fire extinguishers but also design aesthetics. It blends well into office spaces. For more details, please contact us or refer to the catalog.

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• Other safety and hygiene products