HERUTU ELECTRONICS CORPORATION Product Lineup

We received a request from a multifunction printer unit manufacturer stating, "In order to implement poka-yoke in the assembly process of the paper feeding device (tray module) of the multifunction printer, we are currently judging work omissions based on the weight of screws and bolts, which are 'the necessary weight for fastening.' However, the E-ring (E-type retaining ring) is too light, making it difficult to judge by weight. We would like to implement poka-yoke for the E-ring insertion process (to prevent forgetting to insert it) using a different method." In response to the request to attach our poka-yoke transmitter to the E-ring holder (the tool used for inserting E-rings) that the customer is currently using, we have made the following design considerations, taking into account that "the shape of the E-ring holder varies according to the size of the E-ring being handled." [Details] (1) By changing the "pipe section" to match the shape of the E-ring holder, it can accommodate different E-rings. (2) The spring inside the "pipe section" can be easily replaced according to the force applied to the E-ring. *For more details, please refer to the PDF document or feel free to contact us.

We received a request from a building materials manufacturer stating, "We would like to implement counting management (poka-yoke) for screw fastening operations not only with Makita-style cordless screwdrivers but also with manual torque drivers in our production process." In response to our customer's request, we collaborated with a torque driver manufacturer to equip the torque driver with our poka-yoke transmitter, enabling it to send a signal when screws are fastened with the torque driver. [Details] (1) The transmitter was modified to accurately detect the completion of fastening with the torque driver. (2) The existing poka-yoke receiver already installed on the customer's production line was utilized as is. As a result, it has become possible to introduce counting management (poka-yoke) for torque drivers on-site in a short period. *For more details, please refer to the PDF document or feel free to contact us.

We received a request from an automotive parts manufacturer stating, "In the process of packing products into boxes, we stamp inspection confirmation marks on the products during packaging, and we would like to implement a mistake-proofing system to prevent forgetting to stamp the inspection confirmation marks." This mistake-proofing system consists of a rotary stamp (a stamp that prints with a reversed surface), a simple mistake-proofing counter TW-800R-SCL, and a switch box for Work-Select. The system is designed so that "every time the rotary stamp stamps the inspection confirmation mark on the product, it wirelessly transmits to the TW-800R-SCL to confirm whether the required number of inspection confirmation marks for packaging has been stamped." To realize this mistake-proofing system, we made the following innovations: [Details] (1) The required number of stamps for each packaging box can be switched using the Work-Select switch box. (2) Wireless transmission occurs when the rotary stamp is pressed onto the product. (3) The Work-Select switch box that can be connected to the TW-800R-SC is repurposed. (4) The mechanism of the check pen S is repurposed to attach the transmission function to the rotary stamp. *For more details, please refer to the PDF document or feel free to contact us.

We received a request from an automobile manufacturer stating, "We would like to implement a mistake-proofing system to prevent forgetting to inject wax (rust inhibitor) using spray cans during the vehicle body assembly process." By attaching a commercially available spray handle (a gun-like tool that sprays when the handle is squeezed) to the spray can used by the customer for injecting wax (rust inhibitor), and combining the spray handle with our mistake-proofing transmitter, we have established a system that counts when the spray handle is squeezed. [Mechanical Design] (1) It can be attached without modifying the spray handle itself. (2) It does not compromise the usability of the spraying operation. *For more details, please refer to the PDF document or feel free to contact us.

We received a request from an automobile manufacturer stating, "We would like to implement a visual inspection process for automotive glass marks to prevent oversight by operators (poka-yoke)." To ensure that the visual check of the glass marks is reliably conducted, we developed a system that "wirelessly transmits work performance when the glass mark is checked with a pen that does not leave ink (when it comes into contact with the glass)." In developing this system, we utilized the mechanism of the Check Pen S while ensuring compatibility with the TW-800 series receivers already in use at the customer's production site, incorporating the following technical innovations: [Details] (1) We will create a dedicated pen that does not leave ink. The tip of the pen will be made of a soft material to prevent scratching the glass upon contact. (2) The dedicated pen will be stored in the pipe of the Check Pen S, and a cap will be added to protect the tip of the dedicated pen. (3) To facilitate the visual inspection work for the operators, the structure will allow the Check Pen S to be suspended from the operator's neck. *For more details, please refer to the PDF document or feel free to contact us.

In the assembly process, an automobile manufacturer that implements measures to prevent omissions in fastening work using tools such as torque wrenches and torque spanners has requested, "We would like to create a system to notify us of calibration timing to prevent forgetting to calibrate our tools." To meet the customer's request in a cost-effective and timely manner, we utilized our existing poka-yoke tools and connected a work count display device that manages calibration timing to the poka-yoke receiver. This created a system that allows us to determine whether the number of fastening operations of the tools has reached the required calibration count. The work count display device significantly reduced development time and costs by customizing the compact production management display device SD-4. This device requires the following features: [Details] (1) The number of times requiring calibration (limit count) can be set up to a maximum of 99,999,999 times. (2) If the fastening count (actual count) is below the limit count, the count data is output to the customer's PLC. (3) If the fastening count (actual count) reaches the limit count, the output to the customer's PLC is stopped. *For more details, please refer to the PDF document or feel free to contact us.

A proposal for improvement has been made regarding the production of our factory's wireless Andon system, "Wireless Call Device," stating, "After tightening screws at 30 locations with an electric driver, we check the number of screws tightened in the next process to prevent any omissions in the tightening work (poka-yoke). We would like to reduce this checking process." We have developed a mechanism that attaches a newly developed poka-yoke transmitter to the Nitto Kohki electric driver "Delvo," which is currently used in our production process, allowing it to "wirelessly transmit a torque-up signal from the electric driver when screws are tightened." 【Design Requirements】 (1) It should be retrofittable without modifying the electric driver "Delvo." (2) It should not impair the operability of the electric driver. (3) Battery replacement should be possible without removing the transmitter. The "omission prevention (poka-yoke) for tightening work using an electric driver" has received requests from electronic equipment manufacturers, automotive parts manufacturers, building materials manufacturers, and others, and its application in various manufacturing sites is anticipated. * "Delvo" is a registered trademark of Nitto Kohki Co., Ltd. * For more details, please refer to the PDF document or feel free to contact us.

The WCP-232-EXL is a LAN-connected I/O unit that can be used in combination with the production process support software for Poka-Yoke tools POKAYOKE plus and the production process support software for the WCL series WCL plus. By connecting to POKAYOKE plus, it enables functions such as "outputting the work status (PASS/FAIL) to manufacturing equipment" and "real-time notifications of inputs from manufacturing equipment to a wristwatch-type transmitter/receiver," facilitating collaboration with manufacturing equipment. By connecting to WCL plus, it allows for functions such as "notifying distant individuals of signals input from manufacturing equipment or PLCs via 'vibration' or 'messages'" and "real-time notifications of inputs from manufacturing equipment to a wristwatch-type transmitter/receiver," enabling collaboration with manufacturing equipment. The WCP-232-EXL is a model that combines the I/O unit "WCP-232" and the LAN conversion unit "WCP-EXL" into a set.

We received a request from an agricultural machinery manufacturer stating, "We would like to implement a gap inspection using a gap gauge in the assembly process of agricultural machinery to prevent omissions (poka-yoke)." In response, we have developed a dedicated tool (hereinafter referred to as the "Gap Checker") that wirelessly transmits a signal when the gap inspection using the gap gauge results in a pass. [Details] - By designing it so that "when the grip part of the Gap Checker is squeezed, the gap gauge is inserted into the gap," it enables detection of whether the gap is within the specified range. - To communicate with the poka-yoke receiver currently used in the customer's production site, we have installed the poka-yoke transmitter TW-800T in a location that does not interfere with work. - The structure allows for the exchange of gap gauges to accommodate gaps of varying thicknesses. *For more details, please refer to the PDF document or feel free to contact us.

By integrating T Project's "Manufacturing Site Platform TULIP" with our "Poka-Yoke Tool," it becomes possible to: - Manage the number of personnel involved in tasks using tools - Manage the sequence of tasks using tools - Automatically record and save the work history using tools to the cloud.

By integrating Rakuten Communications' "Real-time Positioning System - Ubisense Service" with our product "Poka-Yoke Tool," we can establish a Poka-Yoke system for the location and frequency of fastening.

We will introduce a range of IoT tools that support "Poka-Yoke for Quality and Safety" displayed at the Hertz Electronics booth at the 8th Smart Factory EXPO (January 24-26, 2024, held at Tokyo Big Sight).

We received a request from a transportation equipment manufacturer to create a system that meets the following two objectives for ensuring labor safety compliance in robot welding operations: (1) Establishing a mechanism to prevent unsafe actions (emergency stop) through a two-person operation involving a supervisor (outside the robot operating area) and an operator (inside the robot operating area). (2) Creating a system that prohibits the robot's teaching operation if the operator is not wearing a helmet correctly. 【Details】 - By connecting the signals from helmet-wearing sensors attached to the chin straps of the helmets worn by the supervisor and operator to the poka-yoke receiver TW-800R-EXS, we can achieve a system where "if the operator is not wearing the helmet correctly, the robot will automatically stop" and "if the supervisor determines it to be unsafe, they can remove the chin strap of the helmet to emergency stop the robot." - After the chin strap of the supervisor's and operator's helmets is removed, we will repeatedly customize the software of the helmet-wearing sensor ENS-HH01 and conduct practical verification to ensure the robot stops appropriately within the correct time frame. *For more details, please refer to the PDF document or feel free to contact us.*

We received a request from a snowblower manufacturer stating, "We would like to implement a mistake-proofing system to prevent forgetting to inject oil into the gear case during the production process of household snowblowers." [Details] - In addition to "preventing forgetting to inject oil," we will also include mistake-proofing for "preventing forgetting to mark with a pen" and "preventing forgetting to tighten the drain bolt." - By equipping the oil gun (preset batch meter) used for injecting oil into the snowblower's gear case with our small transmitter TW-850T for mistake-proofing, we have developed a mechanism to "detect when the trigger of the oil gun is pulled." - To ensure that the operability of the oil injection is not compromised, we have designed a mechanism to attach the small transmitter TW-850T for mistake-proofing to the bushing of the oil gun (oil inlet side). *For more details, please refer to the PDF document or feel free to contact us.

We received a request from an automotive parts manufacturer stating, "We would like to implement a mistake-proofing (poka-yoke) system to prevent omissions in the marking process using a liquid stamp (identification marking stamp) during the assembly process of truck fenders." Additionally, we received a request from a snow removal equipment manufacturer stating, "We would like to implement a mistake-proofing (poka-yoke) system to prevent forgetting to inject oil into the gear case of household snow removal machines during the production process." 【Details】 ■ We are developing a dedicated component that realizes a mechanism to "stably press the switch of the check pen S main unit CP-SLX with a liquid stamp that has uneven surfaces when marking." ■ We are developing a mechanism that wirelessly transmits when the marking surface of the liquid stamp is pressed against the fender. *For more details, please refer to the PDF document or feel free to contact us.

We will introduce a range of IoT tools that support "Poka-Yoke for Quality and Safety" displayed at the Hertz Electronics booth at the 9th Smart Factory EXPO (held from January 22 to January 24, 2025, at Tokyo Big Sight).

The HCP-2403T-MD is a wireless unit that can communicate with the TW-800 series error-proofing receivers. It comes standard with a pairing switch, LED monitor, antenna, and communication interface for external devices, allowing for the construction of error-proofing equipment without the need for wireless circuit design by integrating it into power tools, jigs, and equipment. Since there is no need for development related to wireless technology, it significantly reduces development man-hours while achieving stable wireless communication. Additionally, due to its unique communication protocol, there are no licensing fees or annual costs, making it suitable for small-scale starts. Furthermore, it allows for the wireless transmission of arbitrary data through simple command sending via UART, enabling the transmission of information from power tools, jigs, and equipment to higher-level PLCs or PCs. The HCP-2403T-MD can be retrofitted into Makita Corporation's screwdrivers. 【Available Countries】 Japan / Canada / United States / China / Thailand / India