Work implement, arm, and work vehicle

An arm, comprising:

• an arm main body
• a distal end part with a first end component and a second end component disposed a specific space apart along a width direction,
• a bucket attached to the distal end part, and
• a proximal end part which is configured to allow attachment on a vehicle main body side;
• a protective member covering the specific space;
• a fixing component disposed on a proximal end part side of the specific space and fixing the protective member to the arm main body;
• and
• a restrictor disposed between the first end component and the second end component along the width direction, and restricting movement of the protective member.

A work implement, comprising:

• a boom pivotably attachable to a vehicle main body;
• an arm attached to the boom;
• and
• a bucket attached to the arm,
• the arm including
• an arm main body having
• a distal end part a first end component and a second end component disposed a specific space apart along a width direction, and
• a proximal end part attached to the boom,
• the bucket being attached to the distal end part,
• a protective member covering specific space,
• a fixing component disposed on a proximal end part side of the specific space and fixing the protective member to the arm main body, and
• a restrictor disposed between the first end component and the second end component along the width direction, and restricting movement of the protective member.