Lock for orthodontic treatment

A lock for orthodontic treatment, comprising a holding member fixed to a molar band, and a spring wire having an end removably held by the holding member,

• the holding member being configured such that the end of the spring wire is held on the holding member by being moved axially along the holding member,
• one of the holding member and the spring wire having elasticity in a direction perpendicular to its axis,
• the holding member including a first engagement portion for preventing the movement of the end of the spring wire in a mounting direction, and a second engagement portion for preventing the movement of the end of the spring wire in a removing direction, and
• the spring wire including a first locking portion for engaging with the first engagement portion of the holding member, and a second locking portion for engaging with the second engagement portion of the holding member,
• whereby, when the end of the spring wire is moved axially along the holding member and held on the holding member, the first locking portion of the spring wire engages with the first engagement portion of the holding member and the second locking portion of the spring wire engages with the second engagement portion of the holding member under the elasticity of one of the holding member and the spring wire so that the spring wire is locked by the holding member,
• wherein the holding member is a cylindrical holding tube adapted to receive the spring wire,
• wherein the spring wire is bent at a position adjacent to the end thereof to form a spring hook portion having elasticity, and
• wherein the holding tube is formed with one or more engagement surface portions projecting inwardly of the holding tube such that one end edge of the engagement surface portion acts as the first engagement portion and other end edge acts as the second engagement portion, and
• the spring hook portion or a wire body which is opposed to the spring hook portion is formed with one or more cutout surface portion at positions opposite to the engagement surface portions such that one end of the cutout surface portion acts as the first locking portion and other end of the cutout surface portion acts as the second locking portion.

A lock for orthondontic treatment, comprising a holding member fixed to a molar band, and a spring wire having an end removably held by the holding member,

• the holding member being configured such that the end of the spring wire is held on the holding member by being moved axially along the holding member,
• one of the holding member and the spring wire having elasticity in a direction perpendicular to its axis,
• the holding member including a first engagement portion for preventing the movement of the end of the spring wire in a mounting direction, and a second engagement portion for preventing the movement of the end of the spring wire in a removing direction, and
• the spring wire including a first locking portion for engaging with the first engagement portion of the holding member, and a second locking portion for engaging with the second engagement portion of the holding member,
• whereby, when the end of the spring wire is removed axially along the holding member and held on the holding member, the first locking portion of the spring wire engages with the first engagement portion of the holding member and the second locking portion of the spring wire engages with the second engagement portion of the holding member under the elasticity of one of the holding member and the spring wire so that the spring wire is locked by the holding member,
• wherein the holding member is a cylindrical holding tube adapted to receive the spring wire,
• wherein the spring wire is bent at a position adjacent to the end thereof to form a spring hook portion having elasticity, and
• wherein the holding tube is formed with a plurality of engagement hold portions such that one edge of the engagement hole portion acts as the first engagement portion and other edge acts as the second engagement portion, and
• the spring hook portion or a wire body which is opposed to the spring hook portion is formed with a plurality of engagement raised portions engageable with the one or more engagement hole portions such that one end of the engagement raised portion acts as the first locking portion and other end acts as the second locking portion.

A lock for orthondontic treatment, comprising a holding member fixed to a molar band, and a spring wire having an end removably held by the holding member,

• the holding member being configured such that the end of the spring wire is held on the holding member by being moved axially along the holding member,
• one of the holding member and the spring wire having elasticity in a direction perpendicular to its axis,
• the holding member including a first engagement portion for preventing the movement of the end of the spring wire in a mounting direction, and a second engagement portion for preventing the movement of the end of the spring wire in a removing direction, and
• the spring wire including a first locking portion for engaging with the first engagement portion of the holding member, and a second locking portion for engaging with the second engagement portion of the holding member,
• whereby, when the end of the spring wire is moved axially along the holding member and held on the holding member, the first locking portion of the spring wire engages with the first engagement portion of the holding member and the second locking portion of the spring wire engages with the second engagement portion of the holding member under the elasticity of one of the holding member and the spring wire so that the spring wire is locked by the holding member,
• wherein the holding member is a cylindrical holding tube adapted to receive the spring wire,
• wherein the spring wire is bent at a position adjacent to the end thereof to form a spring hook portion having elasticity, and
• wherein the holding tube is provided with a bent edge extending axially from one end of the holding tube and having a portion bent perpendicularly to the axial direction, and with a pawl projection extending axially from the other end of the holding tube and having a portion projecting perpendicularly to the axial direction, such that the bent edge acts as the first engagement portion and the pawl projection acts as the second engagement portion, and
• an outer curved portion of the spring hook portion acts as the first locking portion, and a projection formed on the spring hook portion or a wire body which is opposed to the spring hook portion acts as the second locking portion.

A lock for orthondontic treatment, comprising a holding member fixed to a molar band, and a spring wire having an end removably held by the holding member,

• the holding member being configured such that the end of the spring wire is held on the holding member by being moved axially along the holding member,
• one of the holding member and the spring wire having elasticity in a direction perpendicular to its axis,
• the holding member including a first engagement portion for preventing the movement of the end of the spring wire in a mounting direction, and a second engagement portion for preventing the movement of the end of the spring wire in a removing direction, and
• the spring wire including a first locking portion for engaging with the first engagement portion of the holding member, and a second locking portion for engaging with the second engagement portion of the holding member,
• whereby, when the end of the spring wire is moved axially along the holding member and held on the holding member, the first locking portion of the spring wire engages with the first engagement portion of the holding member and the second locking portion of the spring wire engages with the second engagement portion of the holding member under the elasticity of one of the holding member and the spring wire so that the spring wire is locked by the holding member,
• wherein the holding member is a cylindrical holding tube adapted to receive the spring wire,
• wherein the spring wire is bent at a position adjacent to the end thereof to form a spring hook portion having elasticity, and
• wherein the holding tube is provided with a bent edge extending axially from one end of the holding tube and having a portion bent perpendicularly to the axial direction, and with a hole portion located adjacent the other end of the holding tube, such that the bent edge acts as the first engagement portion and the hole portion acts as the second engagement portion, and
• an outer curved portion of the spring hook portion acts as the first locking portion, tip end corner of a bent portion formed by bending outwardly the end of the spring hook portion acts as the second locking portion.

A lock for orthondontic treatment, comprising a holding member fixed to a molar band, and a spring wire having an end removably held by the holding member,

• the holding member being configured such that the end of the spring wire is held on the holding member by being moved axially along the holding member,
• one of the holding member and the spring wire having elasticity in a direction perpendicular to its axis,
• the holding member including a first engagement portion for preventing the movement of the end of the spring wire in a mounting direction, and a second engagement portion for preventing the movement of the end of the spring wire is a removing direction, and
• the spring wire including a first locking portion for engaging with the first engagement portion of the holding member, and a second locking portion for engaging with the second engagement portion of the holding member,
• whereby, when the end of the spring wire is moved axially along the holding member and held on the holding member, the fist locking portion of the spring wire engages with the first engagement portion of the holding member and the second locking portion of the spring wire engages with the second engagement portion of the holding member under the elasticity of one of the holding member and the spring wire so that the spring wire is locked by the holding member,
• wherein the holding member is a cylindrical holding tube adapted to receive the spring wire,
• wherein the spring wire is bent at a position adjacent to the end thereof to form a spring hook portion having elasticity, and
• wherein the holding tube is provided with a bent edge extending axially from one end of the holding tube and having a portion bent perpendicularly to the axial direction, and with a hole portion located adjacent the other end of the holding tube, such that the bent edge acts as the first engagement portion and the hole portion acts as the second engagement portion, and
• an outer curved portion of the spring hook portion acts as the first locking portion, a projection formed on the spring hook portion or a wire body which is opposed to the spring hook portion acts as the second locking portion.

A lock for orthondontic treatment, comprising a holding member fixed to a molar band, and a spring wire having an end removably held by the holding member,

• the holding member being configured such that the end of the spring wire is held on the holding member by being moved axially along the holding member,
• one of the holding member and the spring wire having elasticity in a direction perpendicular to its axis,
• the holding member including a first engagement portion for preventing the movement of the end of the spring wire in a mounting direction, and a second engagement portion for preventing the movement of the end of the spring wire in a removing direction, and
• the spring wire including a first locking portion for engaging with the first engagement portion of the holding member, and a second locking portion for engaging with the second engagement portion of the holding member,
• whereby, when the end of the spring wire is moved axially along the holding member and held on the holding member, the first locking portion of the spring wire engages with the first engagement portion of the holding member and the second locking portion of the spring wire engages with the second engagement portion of the holding member under the elasticity of one of the holding member and the spring wire so that the spring wire is locked by the holding member,
• wherein the holding member is a cylindrical holding tube adapted to receive the spring wire,
• wherein the spring wire is bent at a position adjacent to the end thereof to form a spring hook portion having elasticity, and
• wherein the holding tube is provided with a pawl portion projecting inwardly from one end edge of the holding tube, and a pawl projection extending axially from the other end and having a portion projecting perpendicularly to the axial direction, such that the pawl portion acts as the first engagement portion and the pawl projection acts as the second engagement portion, and
• a projection formed on one of the spring hook portion or a wire body which is opposed to the spring hook portion acts as the first locking portion, and a projection formed on the other of the spring hook portion or the wire body acts as the second locking portion.

A lock for orthodontic treatment, comprising a holding member fixed to a molar band, and a spring wire having an end removably held by the holding member,

• the holding member being configured such that the end of the spring wire is held on the holding member by being moved axially along the holding member,
• one of the holding member and the spring wire having elasticity in a direction perpendicular to its axis,
• the holding member including a first engagement portion for preventing the movement of the end of the spring wire in a mounting direction, and a second engagement portion for preventing the movement of the end of the spring wire in a removing direction, and
• the spring wire including a first locking portion for engaging with the first engagement portion of the holding member, and a second locking portion for engaging with the second engagement portion of the holding member,
• whereby, when the end of the spring wire is moved axially along the holding member and held on the holding member, the first locking portion of the spring wire engages with the first engagement portion of the holding member and the second locking portion of the spring wire engages with the second engagement portion of the holding member under the elasticity of one of the holding member and the spring wire so that the spring wire is locked by the holding member,
• wherein the holding member is a cylindrical holding tube adapted to receive the spring wire,
• wherein the spring wire is bent at a position adjacent to the end thereof to form a spring hook portion having elasticity, and
• wherein the holding tube is provided with a pawl portion projecting inwardly from one end edge of the holding tube, and a hold portion located adjacent the other end of the holding tube, such that the pawl portion acts as the first engagement portion and the hole portion acts as the second engagement portion, and
• a projection formed on one of the spring hook portion or a wire body which is opposed to the spring hook portion acts as the first locking portion, and a projection formed on the other of the spring hook portion or the wire body acts as the second locking portion.

A lock for orthondontic treatment, comprising a holding member fixed to a molar band, and a spring wire having an end removably held by the holding member,

• the holding member being configured such that the end of the spring wire is held on the holding member by being moved axially along the holding member,
• one of the holding member and the spring wire having elasticity in a direction perpendicular to its axis,
• the holding member including a first engagement portion for preventing the movement of the end of the spring wire in a mounting direction, and a second engagement portion for preventing the movement of the end of the spring wire in a removing direction, and
• the spring wire including a first locking portion for engaging with the first engagement portion of the holding member, and a second locking portion for engaging with the second engagement portion of the holding member,
• whereby, when the end of the spring wire is moved axially along the holding member and held on the holding member, the first locking portion of the spring wire engages with the first engagement portion of the holding member and the second locking portion of the spring wire engages with the second engagement portion of the holding member under the elasticity of one of the holding member and the spring wire so that the spring wire is locked by the holding member,
• wherein the holding member is a cylindrical holding tube adapted to receive the spring wire,
• wherein the spring wire is bent at a position adjacent to the end thereof to form a spring hook portion having elasticity, and
• wherein the holding tube is provided with a pawl portion projecting inwardly from one end edge of the holding tube, and a pawl projection extending axially from the other end and having a portion projecting perpendicularly to the axial direction, such that the pawl portion acts as the first engagement portion, and the pawl projection acts as the second engagement portion, and
• one of two projections formed on any one of the spring hook portion or a wire body which is opposed to the spring hook portion acts as the first locking portion, the other acts as the second locking portion.

A lock for orthodontic treatment, comprising a holding member fixed to a molar band, and a spring wire having an end removably held by the holding member,

• the holding member being configured such that the end of the spring wire is held on the holding member by being moved axially along the holding member,
• one of the holding member and the spring wire having elasticity in a direction perpendicular to its axis,
• the holding member including a first engagement portion for preventing the movement of the end of the spring wire in a mounting direction, and a second engagement portion for preventing the movement of the end of the spring wire in a removing direction, and
• the spring wire including a first locking portion for engaging with the first engagement portion of the holding member, and a second locking portion for engaging with the second engagement portion of the holding member,
• whereby, when the end of the spring wire is moved axially along the holding member and held on the holding member, the first locking portion of the spring wire engages with the first engagement portion of the holding member and the second locking portion of the spring wire engages with the second engagement portion of the holding member under the elasticity of one of the holding member and the spring wire so that the spring wire is locked by the holding member,
• wherein the holding member is a cylindrical holding tube adapted to receive the spring wire,
• wherein the spring wire is bent at a position adjacent to the end thereof to form a spring hook portion having elasticity, and
• wherein the holding tube is provided with a pawl portion projecting inwardly from one end edge of the holding tube, and a hole portion located adjacent the other end of the holding tube, such that the pawl portion acts as the first engagement portion and the hole portion acts as the second engagement portion, and
• one of two projections formed on any one of the spring hook portion or a wire body which is opposed to the spring hook portion acts as the first locking portion, the other acts as the second locking portion.

A lock for orthodontic treatment, comprising a holding member fixed to a molar band, and a spring wire having an end removably held by the holding member,

• the holding member being configured such that the end of the spring wire is held on the holding member by being moved axially along the holding member,
• one of the holding member and the spring wire having elasticity in a direction perpendicular to its axis,
• the holding member including a first engagement portion for preventing the movement of the end of the spring wire in a mounting direction, and a second engagement portion for preventing the movement of the end of the spring wire in a removing direction, and
• the spring wire including a first locking portion for engaging with the first engagement portion of the holding member, and a second locking position for engaging with the second engagement portion of the holding member,
• whereby, when the end of the spring wire is moved axially along the holding member and held on the holding member, the first locking portion of the spring wire engages with the first engagement portion of the holding member and the second locking portion of the spring wire engages with the second engagement portion of the holding member under the elasticity of one of the holding member and the spring wire so that the spring wire is locked by the holding member,
• wherein the holding member is a cylindrical holding tube adapted to receive the spring wire,
• wherein the spring wire is bent at a position adjacent to the end thereof to form a spring hook portion having elasticity, and
• wherein an inlet side end edge of the holding tube acts as the first engagement portion and a pawl projection extending axially from the inlet side end edge and having a portion projecting perpendicularly to the axial direction acts as the second engagement portion, and
• a projection formed on one of the spring hook portion or a wire body which is opposed to the spring hook portion acts as the first locking portion, and a projection formed on the other of the spring hook portion or the wire body acts as the second locking portion.

A lock for orthodontic treatment, comprising a holding member fixed to a molar band, and a spring wire having an end removably held by the holding member,

• the holding member being configured such that the end of the spring wire is held on the holding member by being moved axiallv along the holding member,
• one of the holding member and the spring wire having elasticity in a direction perpendicular to its axis,
• the holding member including a first engagement portion for preventing the movement of the end of the spring wire in a mounting direction, and a second engagement portion for preventing the movement of the end of the spring wire in a removing direction, and
• the spring wire including a first locking portion for engaging with the first engagement portion of the holding member, and a second locking portion for engaging with the second engagement portion of the holding member,
• whereby, when the end of the spring wire is moved axially along the holding member and held on the holding member, the first locking portion of the spring wire engages with the first engagement portion of the holding member and the second locking portion of the spring wire engages with the second engagement portion of the holding member under the elasticity of one of the holding member and the spring wire so that the spring wire is locked by the holding member
• wherein the holding member is a cylindrical holding tube adapted to receive the spring wire,
• wherein the holding tube has elastic properties because of the presence of a slit formed longitudinally of the holding tube.

A lock for orthodontic treatment, comprising a holding member fixed to a molar band, and a spring wire having an end removably held by the holding member,

• the holding member being configured such that the end of the spring wire is held on the holding member by being moved axially along the holding member,
• one of the holding member and the spring wire having elasticity in a direction perpendicular to its axis,
• the holding member including a first engagement portion for preventing the movement of the end of the spring wire in a mounting direction, and a second engagement portion for preventing the movement of the end of the spring wire in a removing direction, and
• the spring wire including a first locking portion for engaging with the first engagement portion of the holding member, and a second locking portion for engaging with the second engagement portion of the holding member,
• whereby, when the end of the spring wire is moved axially along the holding member and held on the holding member, the first locking portion of the spring wire engages with the first engagement portion of the holding member and the second locking portion of the spring wire engages with the second engagement portion of the holding member under the elasticity of one of the holding member and the spring wire so that the spring wire is locked by the holding member,
• wherein the holding member includes a web portion and flange portions extending from opposite ends of the web portion and has a sectional configuration of H shape or channel shape,
• the spring wire is bent at a position adjacent to the end thereof to form a spring hook portion having elasticity, and
• the web portion of the holding member is positioned in a gap between the spring hook portion and the wire body whereby the spring wire is held in position.

A lock for orthodontic treatment, comprising a holding member fixed to a molar band, and a spring wire having an end removably held by the holding member,

• the holding member being configured such that the end of the spring wire is held on the holding member by being moved axially along the holding member,
• one of the holding member and the spring wire having elasticitv in a direction perpendicular to its axis,
• the holding member including a first engagement portion for preventing the movement of the end of the spring wire in a mounting direction, and a second engagement portion for preventing the movement of the end of the spring wire in a removing direction, and
• the spring wire including a first locking portion for engaging with the first engagement portion of the holding member, and a second locking portion for engaging with the second engagement portion of the holding member,
• whereby, when the end of the spring wire is moved axially along the holding member and held on the holding member, the first locking portion of the spring wire engages with the first engagement portion of the holding member and the second locking portion of the spring wire engages with the second engagement portion of the holding member under the elasticity of one of the holding member and the spring wire so that the spring wire is locked by the holding member,
• wherein the holding member is a cylindrical holding tube adapted to receive the spring wire,
• wherein the spring hook portion is formed at its end with a flat crushed portion such that the flat crushed portion engages with an inlet side end edge of the holding tube to prevent the spring hook portion from projecting through a tubular portion.