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  3. 六菱ゴム
  4. Completion of the Hexa Gate Plug Construction for the Tachiaigawa Main Line Water Stop Wall.
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  • Oct 20, 2021
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Oct 20, 2021

Completion of the Hexa Gate Plug Construction for the Tachiaigawa Main Line Water Stop Wall.

六菱ゴム 六菱ゴム
【HEXA TIMES】No.1 The Hexa Gate Plug (hereinafter referred to as HGP) has been adopted for the construction of the No. 3 rainwater discharge pipe of the Tachiaigawa main line ordered by the Tokyo Metropolitan Bureau of Sewerage (Contractor: Shimizu Corporation). In May 2021, this HGP was installed in the Hamagawa main line and is being used as a measure to prevent rainwater inflow when removing the temporary wall at the connection point with the Second Samezu main line. Since the tunnel cross-section is not circular but has a special shape, a pressurized tube seal type was adopted for the water stop mechanism instead of the conventional rubber ring type (Hexa Plug type). Additionally, considering the safety of the workers, it is equipped with a highly operable watertight door. There have been several heavy rain events since the installation, but the sealing performance has been good, ensuring safety within the tunnel, and the construction has been completed successfully.
Rikaigawa Stop Water Wall
Rikaigawa Stop Water Wall
Overview of the Tachiaigawa Main Line Construction
Overview of the Tachiaigawa Main Line Construction
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Related Documents

1. 立会川幹線止水壁.pdf[398139]

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Hexa Gate Plug
Water stop wall for shield tunnels
Newsletter "Completion of Hexa Gate Plug Construction for the Tachiaigawa Main Line Water Stop Wall"

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2022-05-26_16h28_30.png

Water Stop Wall "Hexa Gate Plug"

Post-installation water stop confirmation is possible! A manhole structure that is easy to open and close with a pin insertion method operated by a handle.

We would like to introduce our "Hexagate Plug." It allows for water stop confirmation after installation. It features an easy-to-open and close manhole structure with a pin insertion mechanism operated by a handle. It can be used for temporary storage of rainwater main lines in shield tunnels, as well as for safety measures during branch connection work and countermeasures against backflow during heavy rainfall. 【Features】 ■ High water-stopping seal mechanism ■ Water stop confirmation possible after installation ■ Easy-to-open and close manhole structure ■ Manhole water stop mechanism *For more details, please refer to the PDF document or feel free to contact us.

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Non-contact light touch sensor "HA-T401/HA-T520"

A non-contact light touch sensor "HA-T Series" that realizes "wanting to open in a narrower range and in a limited manner" based on the surrounding environment of automatic doors.

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The non-contact beam touch sensor "HA-T401/HA-T520" has a compact detection range, making it an ideal automatic door sensor for installation on automatic doors facing narrow corridors or busy streets. Depending on the application and installation location, you can choose between "non-vision mounting type" and "non-vision built-in type." 【Features】 ● With the beam touch sensor, you can open and close the automatic door simply by bringing your hand close without touching it, ensuring hygiene. ● Depending on the installation environment, such as single sliding or bi-parting doors, the detection range can be set in four configurations: left, center, right, and a total of 12 spots. ● Two types of activation row settings are available to reduce unnecessary opening and closing of the automatic door due to cross traffic, contributing to energy-saving effects. ● The touch switch and infrared sensor are integrated, allowing for a switch between beam touch and infrared sensor with a single model. 【Recommended for such locations!】 ☑ Entrance facing a busy corridor ☑ Counter or sign near the door ☑ Buildings facing narrow corridors ☑ Buildings that prioritize aesthetics ☑ Hospitals and facilities that consider hygiene ☑ Large facilities with many doors ◎ For more details, please download the materials or contact us.

May 11, 2026

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Enhance the aroma of snacks! For scent creation in stores and offices, choose Majesta Fragrance!

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We have introduced the scent production service "MajestaFragrance" at snack stores located in the city. The moment customers open the door, a high-quality and sophisticated fragrance spreads throughout the space. The scent greatly influences the impression of the environment and supports the creation of a special atmosphere that makes customers feel "I want to come back." MajestaFragrance's "scent production" can propose the optimal fragrance to match the store's concept and atmosphere. We also offer a one-week free trial installation before signing a contract. If you are interested in scent production, please feel free to contact us.

May 09, 2026

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For "fragrance production" for stores and offices in Saitama Prefecture, leave it to Majesta Fragrance!

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If you are considering "scent design (aroma branding)" for your store or office in Saitama Prefecture, please leave it to Majesta Fragrance! Our company helps enhance the added value of spaces through our rental service for commercial aroma diffusers. A free trial installation is also available before signing a contract. If you are interested in scent design, please feel free to contact us.

May 09, 2026

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LAV10C-001

Our products were featured in the May issue of "Mechatronics"!

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In the May 2026 issue of the monthly product information magazine "Mechatronics," published by Gicho Business Communications Co., Ltd., our product has been featured. The product highlighted this time is the coin-type vibration motor LAV10C-001. The coin-type vibration motor "LAV10C-001" is a product that combines the precision motor technology cultivated by Nidec Precision over many years, achieving a powerful vibration sensation while maintaining a compact design (Φ10mm x thickness 3mm). Thanks to the optimal design of the eccentric rotating mass, it ensures reliable tactile vibration with low power consumption. Despite being a brushed motor with excellent mass production capabilities, it supports a wide range of applications from industrial equipment to consumer products through long-life design and thorough quality control. If you are interested, please feel free to contact us.

May 09, 2026

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LAV10C-001

Our products have been featured in the May issue of "Product Navi"!

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In the May 2026 issue of the monthly product information magazine "Product Navi" published by Incom Co., Ltd., our product has been featured. The product highlighted this time is the coin-type vibration motor LAV10C-001. The coin-type vibration motor "LAV10C-001" is a product that combines the precision motor technology cultivated by Nidec Precision over many years, achieving a powerful vibration sensation while maintaining a compact design (Φ10mm x thickness 3mm). Thanks to the optimal design of the eccentric rotating mass, it ensures reliable tactile vibration with low power consumption. Despite being a brushed motor with excellent mass production capabilities, it is designed for long life and subjected to thorough quality control, making it suitable for a wide range of applications from industrial equipment to consumer products. If you are interested, please feel free to contact us.

May 09, 2026

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