Ordinance on Industrial Safety and Health
Ministry of Labour Ordinance No. 32 of September 30, 1972
Latest Amendments:
Ministry of Health, Labour and Welfare Ordinance No. 47 of March 30, 2007
In Japanese
掲載日：2008.03.28
Part II Safety Standards
Chapter I Prevention of Dangers Due to a Machine
Section 1 General Standards
Article 101 (Prevention of Dangers Due to a Prime Mover, a Rotating Shaft, etc.)
- (1) The employer shall provide an enclosure, a cover, a sleeve, an overbridge, etc., for a prime mover, a rotating shaft, a gear, a pulley, a belt, etc., of a machine, which are liable to cause dangers to workers.
- (2) The employer shall, as regards set-screws and other fixtures attached to a rotating shaft, a gear, a pulley, a flywheel, etc., use those of sunk head type or provide a cover.
- (3) The employer shall not use a protruded fastener for joining a belt.
- (4) The employer shall provide a handrail with the height of 90 cm or more for the overbridge set forth in paragraph (1).
- (5) A worker shall use an overbridge when the overbridge is provided.
Article 102 (Prevention of Dangers Due to Cutoff of a Belt)
- (1) The employer shall provide an enclosure under the belt for those are located above a passage or a work place and having a distance between pulleys of 3 m or more, width of 15 cm or more and speed of 10 m/ sec or more
Article 103 (Power Cutoff Device)
- (1) The employer shall provide a power cutoff device of a switch, a clutch, or a belt shifter, etc., for each machine. However, this shall not apply to a series of machines having a common power cutoff device and not requiring manual supply or extraction of raw materials during the process of their operation.
- (2) The employer shall, when the machine set forth in the preceding paragraph is the one for cutting, drawing, compressing, punching, bending or expressing, provide the power cutoff device set forth in the same paragraph at a place where a person engaging in the said processing work are able to operate it without moving from the work station.
- (3) The employer shall, as regards a power cut-off device set forth in paragraph (1), provide the one, which is capable to be easily operated and is unlikely to be unexpectedly activated due to contact, vibration, etc..
Article 104 (Signals for Starting Operation)
- (1) The employer shall, in the case where an operation of a machine is started, and when it is liable to cause dangers to workers, set fixed signals, designate a person who gives the signals and have the said person give the signals to the workers concerned.
- (2) A worker shall follow the signals set forth in the preceding paragraph.
Article 105 (Prevention of Dangers Due to Flying of Work Pieces, etc.)
- (1) The employer shall, when it is liable to cause dangers to workers due to flying of cut or broken work pieces, etc., provide a cover or an enclosure for the machine dispersing the said work pieces, etc. However, this shall not apply to the case where providing a cover or an enclosure is difficult due to the nature of the work, and when having a worker use protective equipment.
- (2) A worker shall, when having been instructed to use personal protective equipment in the case set forth in the proviso of the preceding paragraph, use it.
Article 106 (Prevention of Dangers Due to Flying of Chips, etc.)
- (1) The employer shall, when it is liable to cause dangers to workers due to flying, etc., of chips from machines, provide a cover or an enclosure for the machine producing the said chips. However, this shall not apply to the case where providing a cover or an enclosure is difficult due to the nature of the work, and when having a worker use personal protective equipment.
- (2) A worker shall, when having been instructed to use personal protective equipment in the case set forth in the proviso of the preceding paragraph, use it.
Article 107 (Stoppage of Operation etc., in the Case of Cleaning, etc.)
- (1) The employer shall, in the case where works of cleaning, lubrication, inspection or repairing of a machine (excluding blade parts) are carried out, and when it is liable to cause dangers to workers, stop the operation of the machine. However, this shall not apply to the case where the work has to be carried out during operation, and when taking the measures of providing a cover on dangerous part, etc.
- (2) The employer shall, when stopped the operation of the machine pursuant to the provision of the preceding paragraph, take the measures of locking the starting device of the said machine, attaching a plate, etc., to prevent a person other than the worker engaging in the work set forth in the same paragraph operating the said machine.
Article 108 (Stoppage of Operation, etc., in the Case of Cleaning, etc of Blade Parts, etc.)
- (1) The employer shall, when carrying out the work cleaning, inspecting, repairing, replacing, or adjusting of blade parts of a machine, stop the operation of the machine. However, this shall not apply to when it is unlikely to cause dangers to workers because of the structure of the machine.
- (2) The employer shall, when stopped the operation of the machine pursuant to the provision of the preceding paragraph, take the measures of locking the starting device of the said machine and attaching a plate to prevent a person other than the worker engaging in the work set forth in the same paragraph operating the said machine.
- (3) The employer shall, when removing chips or using cutting lubricants for the blade part of a machine during operation, have a worker use a brush or other appropriate tools.
- (4) A worker shall, when having been instructed to use a tool set forth in the preceding paragraph, use it.
Article 109 (Prevention of Dangers Due to a Take-Up Roll, etc.)
- (1)The employer shall provide a cover or an enclosure, etc., for a take-up roll or a coil of a paper, a cloth and a wire rope, etc., which are liable to cause dangers to the workers.
Article 110 (Wearing of a Work Cap, etc.)
- (1) The employer shall, when it is liable to hair or clothes of the worker during the work caught in a power-driven machine, have the said worker wear appropriate work cap or work clothes.
- (2) A worker shall, when having been instructed to wear a work cap or work clothes set forth in the preceding paragraph, wear them.
Article 111 (Prohibition of the Use of Gloves)
- (1) The employer shall, when it is liable to fingers of the worker during the work caught in rotating blades of a drilling machine or a chamfering machine, not have the worker wear gloves.
- (2) A worker shall, when having been prohibited to wear gloves in the case set forth in the preceding paragraph, not wear them.
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