Assist suit: Assists in maintaining an arm-up posture for extended periods.

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Daiya Industrial Co., Ltd.

last updated：Apr 21, 2026

ダイヤ工業本社

Official site

For those who often work with their arms and neck raised.

The cultivation of peaches and grapes involves tasks that require raising both arms for extended periods, which can lead to strain and pain in the arms, neck, and lower back. This assist suit aims to reduce the workload during the critical tasks of "thinning, bagging, and harvesting," which are common concerns for fruit farmers. A key feature is that it is not a fully fixed type, allowing for other tasks to be performed while wearing it. Applicable size: Upper arm circumference: 20–36 cm, Forearm circumference: 30–32 cm *Available in only one size (M-L).

Related Link - https://www.daiyak.co.jp/product/detail/?id=3803

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basic information

**Feature 1** By adjusting the assistive force for tasks other than arm lifting, it can be used in multiple ways. It supports the upper limbs with the tension of the fabric, allowing for complex movements beyond just arm lifting. You can adjust the support strength according to the task. **Feature 2** Four points considerate of the user: [1] Easy to wear design… A tubular shape that makes it easy to put your arms through. [2] Adjustable size… The tightness of the belt that goes around the arm allows for size adjustment. [3] Consideration for clothing friction… No hook-and-loop fasteners used, making it less likely to damage clothing. [4] Adjustable assistive force… The tightness of the belt can be adjusted according to the situation.

Price information

14,300 yen (including tax)

Price range

Delivery Time

Please contact us for details

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Applications/Examples of results

It is recommended for long hours of harvesting work and maintenance inspection work that require raising the arms. *Demo units are available for corporate clients. We only ask that companies cover the return shipping cost. You can try it out for about a week.

Detailed information

<Support Strength: Weak> You can weaken the support strength by loosening the adjustment belt. It supports the initial movement of raising the arms from waist height. It is also possible to lower the arms while wearing it, allowing for smooth loading and unloading of cargo as well as transportation tasks.
Support Level: Medium By pulling the adjustment belt up to the elbow area, it provides moderate support. It is recommended for repetitive tasks within the range from chest height to above head height. It utilizes the elasticity of the rubber to make lifting the arms easier.
Support Strength: Strong By pulling the adjustment belt to the maximum, you can enhance the support strength. It helps maintain balance by counteracting the weight of the arms and the head, supporting a prolonged arm-raising posture.
<Support Strength: Strong & Medium> Since the support strength can be adjusted for each arm, you can set the arm you want to keep raised to "Strong" and the arm you want to move for tasks like retrieving scissors or hanging bags to "Medium."