Slider for linear conveyer and linear conveyer

A linear conveyer comprising:

• a stationary module including:
• a frame extending linearly;
• a stator including armature coils and fixed to the frame;
• and
• a rail fixed to the frame;
• a magnetic sensor, and
• a slider movable along the rail by a linear motor, the slider including:
• a mover including magnetic poles;
• a rail guide fitted on the rail;
• and
• a magnetic scale including:
• a plastic magnet having magnetic poles and extending along an extending direction in which the rail extends;
• and
• a back yoke on which the plastic magnet is placed, wherein
• a position of the slider is detected by the magnetic sensor and the magnetic scale,
• the plastic magnet has a fixed portion that is fixed with respect to the back yoke and a portion other than the fixed portion, the portion other than the fixed portion being movable relative to the back yoke along an extending direction in which the magnetic scale extends,
• the magnetic scale further includes a band member made of resin, and the band member holds the back yoke and the plastic magnet collectively as an integral component, and
• the band member is fixed to the plastic magnet so as not to be movable relative to the plastic magnet and so as to be movable relative to the back yoke along the extending direction of the magnetic scale.

A slider for a linear conveyer comprising:

• an upper plate portion;
• a side plate portion:
• a mover including magnetic poles and mounted to the upper plate portion;
• a rail guide mounted to the upper plate portion and configured to be fitted to a rail included in a stationary module;
• and
• a magnetic scale mounted to the side plate portion, the magnetic scale including:
• a plastic magnet extending along an extending direction in which the rail guide extends and having magnetic poles;
• and
• a back yoke on which the plastic magnet is placed, wherein
• the plastic magnet has a fixed portion that is fixed to the back yoke and a portion other than the fixed portion, the portion other than the fixed portion being movable relative to the back yoke along an extending direction in which the magnetic scale extends,
• the plastic magnet includes the fixed portion in a middle portion in the extending direction of the magnetic scale,
• the magnetic scale further includes a holding member holding the back yoke and the plastic magnet,
• the holding member is not movable with respect to the plastic magnet and the back yoke at the fixed portion, and
• the holding member is not movable with respect to the plastic magnet and is movable with respect to the back yoke in the portion other than the fixed portion.

A slider for a linear conveyer comprising:

• an upper plate portion;
• a side plate portion:
• a mover including magnetic poles and mounted to the upper plate portion;
• a rail guide mounted to the upper plate portion and configured to be fitted to a rail included in a stationary module;
• and
• a magnetic scale mounted to the side plate portion, the magnetic scale including:
• a plastic magnet extending along an extending direction in which the rail guide extends and having magnetic poles;
• and
• a back yoke on which the plastic magnet is placed, wherein
• the plastic magnet has a fixed portion that is fixed to the back yoke and a portion other than the fixed portion, the portion other than the fixed portion being movable relative to the back yoke along an extending direction in which the magnetic scale extends,
• the magnetic scale further includes a band member made of resin, and the band member holds the back yoke and the plastic magnet collectively as an integral component, and
• the band member is fixed to the plastic magnet so as not to be movable relative to the plastic magnet and so as to be movable relative to the back yoke along the extending direction of the magnetic scale.