KOYO

Koyo is a specialized manufacturer of furniture hardware, offering a wide range of products centered on three core functions: reclining, height adjustment, and rotation.
Through ratchet gears, height-adjustment mechanisms, and rotating parts, we support the creation of comfortable and functional furniture.

We will showcase parts that enable more comfortable and high-value furniture as new products:
★ 360° Auto-Return Rotating Plate
★ Headrest with Free-lock mechanism ”CB01"
★ Angle-Adjustable Gear “STEP PFREE” – no release required
★ Monitor Height-Adjustable Stand “KVI”

Other exhibits:
・Chair and sofa gears
・Electric angle-adjustment mechanisms
・Knockdown Parts
・Swivel plates
・Height-adjustable legs
・Electrical components for furniture (chargers, cup holders, lights, etc.)

We invite you to visit our booth and experience Koyo’s latest technologies firsthand.

The newly introduced chair swivel plate offers full 360° rotation along with an auto-return function.
No matter the angle, the seat automatically returns to the front position, keeping spaces neat and visually organized at all times.

Ideal for offices, lounges, waiting areas, and cafés where a clean and uniform appearance is essential.

For further details, please refer to the visual sheet below.

The new “CB” headrest gear is a lighter version of our conventional model, now featuring a free-lock mechanism.
While previous gears required raising the headrest to the top and lowering it back down before adjusting, the new model allows smooth angle adjustment without returning it to the lowest position.
With fine 6° increments, it enhances both luxury and comfort for sofas.

Features:
・Equipped with a free-lock mechanism
・Fine adjustment in 6° increments
・Customizable arms and base to match sofa design
・Load capacity: 100 N·m

For further details, please refer to the visual sheet below.

Traditional angle adjustment gears require a release operation before repositioning.
The STEP FREE removes this extra step, delivering smooth and intuitive angle adjustment.
With effortless operation, it ensures comfortable reclining and is perfect for applications such as chair headrests and gaming chair armrests, where enhanced convenience and usability are essential.

For more detailed product information, please refer to the visual sheet below.

KVI is primarily engineered as a height-adjustable table leg, yet it also serves perfectly as a monitor stand.
Equipped with smooth height adjustment and rotation functions, it allows displays to be positioned in both landscape and portrait orientations with ease.
Boasting an outstanding load capacity of approximately 900 kg and tested for durability through 20,000 lift cycles without issue, the KVI delivers exceptional reliability.

Its simple, high-quality design makes it an ideal solution for a wide range of applications.

For further details, please refer to the visual sheet below.

This knockdown part makes the sofa backrest detachable and easy to assemble.

Simply attach the plate to the backrest and embed the socket into the sofa base.
When assembly is required, just connect the support columns to the plate and insert them into the socket.

Its compact packaging reduces transportation costs while ensuring effortless assembly.

For detailed information, please refer to the visual sheet below.

Through our unique processing technology, we have achieved swivel plates with exceptional quality, smooth rotation, and low noise.
Our product lineup covers a wide range of applications, from small chairs to massage chairs, with options including free rotation, auto-return, and lever-lock mechanisms.

Product Lineup:

SWIVEL STD: Standard type for chairs up to 500 mm wide
SWIVEL RR: Reinforced version of the standard type
SWIVEL 185 PITCH: Heavy-duty swivel plate for larger chairs up to 800 mm wide
SWL-LEVER STOP: Lever-operated swivel plate with 90° incremental locking
SWL-COMBO: Combines free rotation with 90° incremental lever lock
SWL-AR: Auto-return type, available in 180° and 360° rotation ranges

For details of each product, please refer to the visual sheet below.

BRM allows the backrest to shift between two positions, forward and backward.
By adjusting the seat depth, users can adapt their sitting style to different situations.

It is available with a movable range of either 180 mm or 300 mm.

For more detailed product information, please refer to the visual sheet below

Our height-adjustable table legs feature an in-house developed locking mechanism.
With one-touch operation, they offer smooth and speedy height adjustment. Once unlocked, the built-in slow-down system ensures safety and stability.
Their high-quality and simple design makes them suitable not only for commercial and residential furniture in Japan but also for office and professional furniture widely used across Europe and the United States.

Product Lineup

①KVSI: A slim single-leg model, ideal for various applications such as sofa side tables or stools.

②KW Series: Two-leg lever-operated models, suitable for a wide range of uses including schools, hospitals, and worktables.

　・KWK: Ratchet-lever type, requiring lever operation only when lowering.
　・KWL: Lever-operation type, requiring lever operation for both raising and lowering.

For more details, please refer to the respective visual sheets.

At KOYO, we offer not only metal hardware but also a range of electrical components, such as built-in chargers and lights, to make furniture more practical and convenient.

Product Examples
・Heated Cup Holder
・Cup Holder with Charging Function
・Built-in Mini Refrigerator
・Charging Pods
・Wireless Chargers
・Reading Lights
・Speakers

Experience these innovative solutions that add comfort and functionality to furniture at our booth.

Among our pipe-type angle adjustment gears, the “KDR” series features high load capacity and a free-lock mechanism.

With conventional gears, the headrest had to be raised to the highest position before returning it to the lowest position. However, this model allows smooth angle adjustment after release without lowering it fully, thanks to the free-lock mechanism.

Additionally, with a load capacity of 230 N·m to 330 N·m, it is suitable for high-back chairs and similar applications.


For detailed information on each product, please refer to the visual sheet below.

Our Motorized Adjustment Gear Series is designed to enhance comfort and luxury in sofas and reclining chairs.
With simple button operation, users can easily adjust angles and height to achieve the perfect seating position tailored to their lifestyle.

Product Lineup:
EL-02H (Motorized Angle Adjustable Gear)
・Adjust the headrest angle at the touch of a button.
・An 80mm stroke ensures wrinkle-free fabric movement with a smooth operating range of up to 116°.
・Tested for durability with 25,000 cycles under load, ensuring long-lasting reliability.

EL-03H (Motorized Lift Up Mechanism)
・Provides motorized height adjustment of up to 90mm for the headrest.
・One-hand angle adjustment allows effortless positioning for ultimate relaxation.
・Successfully passed 20,000 cycles with a 15kg load at 45°, offering quiet and durable performance.

Key Features
・Effortless motorized positioning
・Wrinkle-free design with smooth motion
・Proven durability through rigorous testing
・Flexible customization with optional parts

For details of each product, please refer to the visual sheet below.