Threshold seal apparatus, a kit of parts and a method

A threshold seal apparatus for a doorway, the threshold seal apparatus comprising:

• a floor-mountable channel portion;
• a seal configured to be received within the channel portion;
• and
• an actuation mechanism operable to move the seal with respect to the channel portion between a retracted position and an extended position in which the seal is configured to contact an underside of a door mounted within the doorway,
• wherein the actuation mechanism comprises:
• a slide bar comprising an arm configured to be slideably mounted in the channel portion, the arm including a substantially flat bar formed with a first aperture and a second aperture which is spaced apart from the first aperture and including a thumb portion at an end of the arm, the thumb portion configured to protrude substantially perpendicularly to a long axis of the arm from an end of the channel portion when the arm is in situ in the channel portion, and
• a first elongate leaf spring, wherein a first end of the first elongate leaf spring is fastened to a first mounting block integrally formed with a first foot, and a second, opposite end of the first elongate leaf spring is fastened to a second mounting block integrally formed with a second foot,
• the first mounting block being mounted in the first aperture of the flat bar and retained in the first aperture by the first foot which is shaped such that removal of the first mounting block from the first aperture in a vertical direction is prevented by the first foot of the first mounting block engaging with a portion of the flat bar defining the first aperture, and
• the second mounting block being mounted in the second aperture of the flat bar and retained in the second aperture by the second foot which is shaped such that removal of the second mounting block from the second aperture in the vertical direction is prevent by the second foot of the second mounting block engaging with a portion of the flat bar defining the second aperture,
• wherein, along the long axis of the arm, the second foot of the second mounting block has a length which is less than a length of the second aperture, and
• wherein the threshold seal apparatus further comprises a restricting mechanism configured to restrict a movement of the second mounting block relative to the channel portion to cause the second mounting block to slide within the second aperture as the slide bar is moved relative to the channel portion in a direction parallel to the long axis of the arm.