栃木屋 Product Lineup

It is an easy-to-grip seven-sided knob.

This product is an electric lock for securing doors. It locks the door by pushing it in and unlocks electrically. It can be installed regardless of the lock orientation and powerfully lifts the door even if it is small. It comes with an emergency unlocking feature, so it is safe even during power outages.

The corner nut can move, so it can be used even if there is some misalignment during assembly. Additionally, since the corner nut is temporarily fixed by the holding power of the nut holder, it will not move due to gravity when used vertically.

This is a stainless steel arm catch with a clamping force provided by a spring. By angling the lever, it achieves a compact and space-saving design, and the gripping part is shaped like a butterfly to ensure ease of operation.

This is a corner latch. This product is packaged in an unassembled state, with all parts except the main body and arm. Please check that all parts are included before assembly. Also, be careful not to lose the E-shaped retaining ring. When installing, please refer to the assembly diagram after attaching the support bracket and combine each part for use.

This is a stainless steel slide latch that can be locked by pressing the black knob and unlocked by pressing the push button. The rounded design of the push button makes it user-friendly for the fingers during operation.

This is a stainless steel arm catch with a tightening function using a spring. By adjusting the tightening amount, it is possible to change the tightening force.

This is a stainless steel knob screw with a stop washer. It helps prevent falling off and protects the panel from scratches. This product is based on the specifications of the brass knob screw TL-112 series and has achieved lead-free composition. Please consider it for environmental compliance and value engineering (VE).

This is a steel arm catch with a tightening function provided by a spring. The surface is treated with trivalent chrome. By adjusting the tightening amount, it is possible to change the tightening force.

We have compiled a booklet featuring examples of use, a photo index by application, case studies for problem-solving, a functional matrix, and a photo index of new products from the issuance of our comprehensive catalog No. 71 until April 2025.

By twisting the arm like a screw, it is possible to adjust the mounting pitch. Even if the mounting holes are slightly misaligned, it can reduce the hassle of position adjustment. Made of stainless steel, it has excellent corrosion resistance.

This is a lever catch that allows for strong tightening. After installation, the tightening force can be adjusted, allowing you to set it to your desired operating feel. Additionally, it is possible to use a padlock in conjunction with the tightened state, contributing to enhanced security.

The screw head is only 0.7 mm low, allowing for space-saving installation. Currently, we offer two types: M3×5 (TO-504-M3-5) and M3×10 (TO-504-M3-10). Generally, screws are sold in boxes containing hundreds, but for those who don't need that many, you can purchase just one screw.

This is a washer that prevents bolts and fasteners from falling out or loosening just by inserting it at the tip. It can also be used to prevent scratches on the surface of panels. Since it is black, it is less noticeable when attached to black devices or equipment, preserving the appearance.

This is a stainless steel arm catch with a clamping force provided by a spring. It has a simple locking function that prevents unintended opening. It is also expected to have an anti-vandalism effect. It can be released by pressing the lock lever while operating it.

As the design of industrial equipment progresses, the "color" of components holds a crucial key in the design process. In response to many requests, we have created the latest product catalog that consolidates color variations of black and white components. Black: Creates a sense of heaviness and luxury. Tightens the appearance of optical devices and enclosures. White: Clean, medical, and food-related. Designed to make spaces appear brighter. Please make use of this as a hint for next-generation models.

We will be exhibiting at the "Mechanical Components Technology Exhibition (M-Tech)" held at Tokyo Big Sight from July 1 (Wednesday) to July 3 (Friday), 2026. This year, under the theme "NEXT STAGE - The Challenge of 100-Year Companies," we will showcase various components that are active in multiple fields, including conveying robots, semiconductor manufacturing equipment, retail, kitchen-related, construction machinery, and the delivery industry. The highlight of our exhibition is the "Motor Lock." The "Motor Lock" possesses overwhelming power not found in electric locks, while being an energy-saving product with low electricity consumption. Through energy conservation, it not only contributes to CO2 reduction from an eco-friendly perspective but also optimizes the power-on time, which can help suppress heat generation. Additionally, our comprehensive catalog has been renewed for the first time in six years and is now available for shipping. It covers all catalog products, including new items, and consists of a substantial 1,390 pages. We invite you to visit our booth (East Exhibition Hall, Hall 3, 28-32) to experience the actual operation and feel of our products. *For more details, please feel free to contact us.

It is a hasp-type fastening component that allows locking and unlocking of the pin by rotating the knob. In the pin retracted state, the indicator is exposed to show that it is unlocked, preventing forgetting to lock it.

This is a simple arm catch that is easy to operate. Made of stainless steel, it has excellent corrosion resistance. It is available for sale as the main unit only or as a set with the main unit and keeper.

This is a mounting tool for the stop washer TM-320. We have sizes available from M3 to M8. Please check the installation method in the video (YouTube).

This is a stainless steel arm catch that does not wobble when in an open position. A lockable type with a hole for a padlock is also available in the lineup. Being made of stainless steel, it has excellent corrosion resistance.

Tochigiya Co., Ltd. is a manufacturer engaged in the design, production, and sales of various industrial mechanism parts and machine parts, including hinges, handles, latches, and catches. This case study collection introduces examples of our products being adopted and used in various devices and equipment such as semiconductor manufacturing equipment, railways, and machine tools.

We have published the 2026 edition of the comprehensive catalog No. 77 from Tochigiya. It is a full-color comprehensive catalog of approximately 1264 pages that covers all Tochigiya products. [Featured Products] ■ Latches, fasteners, and locks ■ Various types of hinges ■ Handles and grips ■ Surrounding parts and casters Many more products are also included. *This document is a digest version. If you would like the "comprehensive catalog" that covers all Tochigiya products, please request it through [Contact Us].

■Reliable locking and prevention of rattling Due to the long stroke, even if there is some deviation in the door's closure or misalignment due to aging, it can reach the keeper deeply and securely, ensuring reliable locking. ■Holding power at the stroke end The long operating distance allows the locking pin to enter deeply, increasing the physical holding power against prying and vibrations. ■Improved design flexibility Due to the structure of the housing, it allows for flexible design when the locking mechanism needs to be placed deep within the door or when a wider range of motion is desired. ■Residual magnetism countermeasures When the power is turned off, the latch can return instantly to its original position without getting stuck. This prevents malfunctions and ensures stable operation.

■Emergency unlocking mechanism to prevent accidents (high safety performance) To prevent accidents where children may become trapped inside large storage units or delivery boxes, a standard feature is the "emergency unlocking button (push cover)" that can be pressed from the inside. ■Tactile confirmation with a "pop-up indicator" (UD & weather resistance) The indicator that shows the locking and unlocking status uses a highly weather-resistant resin. Its pop-up design allows users to "feel the status with their hands" in addition to visual confirmation. ■High design quality A sophisticated design that matches the aesthetics of residential and office environments. It has won both the "Good Design Award" and the "Kids Design Award," contributing to branding and differentiation during the specification of in-house products. ■Balancing security and operability Adopting a dimple key that is smooth to insert and resistant to picking (with 250 types of key variations and randomization). The force required to open the door when not locked is approximately 9N, providing a smooth operation feel, while ensuring a latch strength of 300N when locked. ■Ease of design and installation (compatible with left/right door configurations and standard plate thickness) Compatible with a wide range of plate thicknesses from t0.8 to t1.6. Depending on the door's hanging direction (left or right), users can choose between "LL-0030" and "LL-0031."

Ultra-thin design with a thickness of only 10mm (space-saving) Design advantage: It can be easily placed in confined spaces with limited clearance around the internal casing and doors. This minimizes dead space and maximizes the effective volume inside the storage box. Electric lock with automatic pop-out function Design advantage: The latch engages mechanically just by pushing the door, and when power (DC24V) is applied, the lock mechanism simultaneously pushes the door open (pop-out function). This pop-out action eliminates the need for handles or knobs on the surface of the casing, achieving a flat and stylish exterior design. Incorporation of a wobble prevention mechanism Design advantage: A dedicated holding holder is standardly equipped at the fitting part of the receiving seat (keeper). This suppresses unpleasant wobbling and misalignment of gaps in the door when locked, enhancing the overall rigidity and quality feel of the product.

One-push locking & automatic pop-up unlocking with electric power The door is securely locked just by pushing it in (passive locking). When powered, the lock jumps up in the direction of the door opening, incorporating a "kick-out (push-out) function" that allows the door to be slightly pushed open by itself. There is no need to design or place separate springs or push-out pins. "Door rattling prevention" through holder effect Equipped with a standard holder mechanism that suppresses rattling (play) when closed. This contributes to maintaining airtightness, vibration resistance, quietness, and enhancing the overall premium feel of the product. Built-in micro switch (signal detection of open/close and locking state) Without needing to install separate detection sensors, the electric lock can output signals for open/close and locking states on its own. This prevents the hassle of sensor position adjustments and the complexity of wiring design. Significant reduction in the number of parts and design man-hours through unitization Consolidating five functions—"solenoid unlocking," "latch holding," "door pushing," "rattling absorption," and "state detection switch"—into one unit. This simultaneously simplifies mechanical design and saves space.

Ultra-thin design with a thickness of approximately 10mm (space-saving) It does not encroach on the limited installation space within the housing, maximizing the effective volume. Realization of "handle-less" design through pop-up (door ejection) function Simultaneously with the electric lock, the internal mechanism pushes out (kicks out) the door, allowing for a flat and aesthetically pleasing exterior design (handle-less design). Auto-lock function (one-touch locking) Simply pushing the door closed automatically holds and locks the latch, balancing user operability and safety. State detection with built-in micro switch Since it can obtain the state signals of locking/unlocking and door opening/closing, there is no need for additional sensors, reducing the complexity of circuit and mechanism design. Drip-proof performance (equivalent to IPX3) It can be safely adopted in environments where water droplets may occur, such as outdoor or semi-outdoor mailboxes and delivery boxes in apartment buildings. Standard equipped with emergency unlocking mechanism Even during power outages or system troubles, manual unlocking can be done from the rear lever (or wire connection), making it easier to meet safety design requirements.

Auto Lock Function (Automatic Locking) The door is mechanically locked automatically just by closing it. There is no need for constant power supply, allowing for energy-efficient control circuits and system design. Pop-Up (Kick-Out) Function When powered, the lock is released, and the internal mechanism pushes the door forward. There is no need to install a handle on the door surface. This enables a flat and stylish housing design, reducing the procurement and assembly time for handle components. Shock Absorption (Damper) Function Equipped with an internal oil damper, it mitigates the impact and the "bang" sound or metallic noise when closing the door. Lock/Unlock Detection Function (Built-in Micro Switch) A micro switch capable of detecting locking, unlocking, and door status is standardly built-in. There is no need to separately place or adjust external sensors or switches, significantly reducing the hassle of wiring and positioning design. Emergency Unlock Mechanism Equipped with an emergency unlock lever on the back of the main unit, it allows for manual (or wire-operated) forced unlocking even during power outages or system failures. Safety design and countermeasures for unexpected troubles are standardly considered.

■Push-in Lock Function (One-Touch Locking) The structure allows the latch to engage mechanically and lock simply by pushing the door in. No special locking operation or key turning is required. ■Unlocking with Power Supply (DC24V Solenoid Drive) The lock is instantly released by a brief power supply (approximately 1 second signal) at the rated voltage of DC24V. It is designed to be highly compatible with electronic controls (microcontrollers, PLCs, card readers, etc.). ■Door "Pop-Up" When the locking mechanism is powered, the latch mechanism jumps up in the direction of opening the door, performing a slight push-out action to help open the door. It is designed to be easy to open even with a flat door design that has no handles or knobs.

■ Energy-saving "Keep Solenoid (Self-holding)" structure It is a type that is powered only during locking and unlocking operations (pulse drive). Since continuous power supply is not required, power consumption can be minimized, contributing to reduced heat risk and energy-saving design. ■ Built-in "Micro Switch" for accurate operation status detection It has a built-in micro switch (MS1) that electrically detects the opening and closing state of the cam (lock/unlock). This facilitates system design for accurate status monitoring and signal control on the circuit board side. ■ "Drip-proof structure" suitable for outdoor and semi-outdoor equipment By installing it in the correct vertical and horizontal orientation, it maintains functionality even in environments where water may splash. It ensures reliability in environments prone to water droplets, such as delivery boxes and mailboxes for apartment buildings. ■ "Dual emergency release mechanism" considering field operation and emergencies It is equipped with a mechanism that allows manual unlocking in the event of a power outage or emergency, with two stages (temporary release type and state maintenance type). This greatly contributes to maintainability and a sense of security in design. ■ DC5V specification easy to integrate into drive circuits It supports low-voltage operation at 5V, making it easy to control from microcontroller boards or control boards.

■ Energy-saving and space-saving design (self-holding solenoid equipped) Adopts a "keep solenoid (DC24V)" that switches states only when powered. It does not require continuous power to maintain the locked and unlocked states, achieving significant energy savings and heat management. ■ High reliability and state monitoring function (built-in micro switch) Standard built-in micro switch can accurately sense the behavior of the lock cam and the open/close state. It allows for easy integration and control with IoT devices and remote monitoring systems. ■ Drip-proof structure suitable for water-related and semi-outdoor environments Exhibits drip-proof performance when installed in the correct vertical and horizontal orientation. It can be applied in environments where moisture and water droplets are a concern, such as small refrigerators, outdoor delivery boxes, and various receiving lockers. ■ Reliable mechanical manual emergency release mechanism In the event of a power outage or emergency, manual unlocking is possible through lever operation (emergency release operation a/b). Depending on the application, the release specifications can be differentiated between "auto-return type" and "state-holding type." ■ Robust and durable metal model Despite its compact size, it has sufficient holding power, making it ideal for locking components in small enclosures with high security requirements.

■Zero power consumption for state retention (energy saving and heat prevention) The state can be maintained without power in both locked and unlocked positions. Since it does not consume power to maintain the state, it fundamentally avoids the risks of battery-operated devices having a longer lifespan and coil overheating or burning due to continuous power supply. ■High responsiveness through short pulse drive (polarity switching) By simply switching the polarity and applying instantaneous power for just 0.1 seconds, smooth locking and unlocking operations are possible. ■Standard built-in mechanical lock for emergency unlocking In the event of power outages, control system malfunctions, or circuit board failures, it is equipped with a safety design (fail-safe) that allows manual unlocking with a physical key. ■Ease of integration and expandability A voltage lineup is available to match power systems such as 6V, 12V, and 24V. Custom and special orders can be accommodated according to design requirements, such as changes to keyless specifications.

■ Unique shape housing optimized for corner installation Designed to fit into the corners of boxes, it effectively utilizes dead space even in designs where there is no space on the flat surface or where protrusions need to be minimized. ■ Welded installation (all stainless steel specification) It has no holes for screws and is specifically designed for welded fixation (made of all stainless steel). There is no concern about screw loosening due to vibrations, making it suitable for housings that require a sealed structure and robustness. ■ Pressure retention by pressing down the lid with the arm tip By pulling down the lever, the tip of the arm contacts the top surface of the lid, securely pressing and fixing it from above.

■ Realization of flat design for handles and knobs Supports one-touch operation with a push to lock and a second push to unlock. There is no need to attach handles or knobs to the surface of the housing, allowing for a sophisticated full-flat and minimal exterior design. ■ Reliable push-out stroke Equipped with a "push-off" function that firmly pushes the door forward when unlocking. It is easy to hook fingers into the gap between the door and the housing, providing a smooth opening and closing experience even for large panels or flush-structured doors. ■ Reduction of design costs and assembly labor The door opening and closing mechanism, which was composed of two parts ("latch + handle"), can be simplified with the "TL-520" alone. This reduces drilling processes and the number of managed parts, contributing to lower assembly costs and fewer components.

■Significantly Reduced Risk of Half Engagement and Malfunction Even with door rattling or distortion and rebound of the packing, it can reliably unlock with ample stroke and power. This greatly reduces the effort required for reliability evaluation and fixing operational issues. ■Smart Locking and Energy-Saving Design The door locks mechanically with a simple push, and only requires power during unlocking, allowing the entire system's standby power to be reduced to zero (energy-saving). ■Improved Assembly and Wiring Efficiency There is no need for soldering wires, as connections are completed with a coupler. This simplifies the design of the circuit board and harness, shortening assembly time (lead time) in the factory.

■All components are made of stainless steel (SUS) They have high corrosion resistance and durability, allowing for long-term use in outdoor installations, water areas, and clean environments without concerns about rust or deterioration, which enhances product reliability. ■Compact design of the latch It does not occupy surface area on the equipment and does not compromise the internal structure layout, contributing to the compactness of the housing and the stylishness of the design. ■Compatible with existing "TL-2" mounting dimensions When converting existing products that already use TL-2 (made of iron, etc.) to stainless steel (improving corrosion resistance and rust prevention), there is no need for redesign or additional processing or hole modifications to the housing, significantly reducing design workload and transition costs.

■Corrosion Resistance and High Durability It is resistant to rust even in water environments and harsh conditions (such as industrial machinery and outdoor equipment), preventing long-term degradation of strength and discoloration, thereby reducing maintenance burden. ■High Specifications and Ensured Safety Due to its high load design, it can be safely used with heavy enclosures or doors that open and close frequently, eliminating troubles and safety risks caused by insufficient strength. ■Improved Operability and User Experience The oval shape distributes the load on the hand compared to round or square types, making it easy to grip firmly, which leads to reduced fatigue for the operator and an enhanced sense of control. ■Design and Safety Since the screw heads do not protrude on the front side, the appearance of the enclosure is flat and sleek. Additionally, it prevents snagging accidents caused by contact.