Abstract: [Problem] The sleep improvement device provides a sleep improvement plan of lifestyle improvement suited to an individual in order to improve the sleep state with a simple and low-cost configuration. [Method of Settlement] The sleep evaluation index for model construction calculated based on the time of each sleep stage of the user, (2) the energy value of at least the extremely low frequency component before bedtime calculated by the autonomic calculation section 12, (3) the sleep evaluation prediction model for constructing a sleep evaluation prediction model equation specific to the user. (4) a sleep improvement proposal proposal section 7, which proposes a sleep improvement proposal through lifestyle improvement based on the constructed sleep evaluation prediction model formula and the energy value of the extremely low frequency component.

Abstract: A connector fitting device for fitting a female connector to a male connector includes a movable arm body connected to a base on a base end side of the movable arm body and a gripper connected to a distal end side of the movable arm body. The connector fitting device is configured to move the gripper to an arbitrary position in a three-dimensional space and in an arbitrary direction in the three-dimensional space. The movable arm body includes a device main body, a first arm, a second arm, and a third arm.

Abstract: A board-mounting connector includes a cylindrical terminal and a housing holding the cylindrical terminal. The cylindrical terminal includes a cylindrical portion in contact with a mating terminal, a contact portion extending in a direction intersecting a fitting direction so as to be connected to a circuit board, and an intermediate portion supported by the housing between the cylindrical portion and the contact portion. The cylindrical portion includes a slit defined, by bending a plate-shaped conductor into a cylindrical shape and abutting one edge portion thereof against another edge portion thereof, between the one edge portion and the other edge portion. Further, the slit is formed such that a slit tip end portion located on a mating terminal side of the cylindrical portion and a slit base end portion located on an intermediate portion side thereof are located at offset positions in a peripheral direction of the cylindrical portion.

Abstract: A connector fitting device for fitting a female connector to a male connector includes a movable arm body connected to a base on a base end side of the movable arm body and a gripper connected to a distal end side of the movable arm body. The connector fitting device is configured to move the gripper to an arbitrary position in a three-dimensional space and in an arbitrary direction in the three-dimensional space. The movable arm body includes a device main body, a first arm, a second arm, and a third arm.

Abstract: A board-mounted connector (1) includes plural terminals (10) and a housing (40) holding the terminals. The housing has, on its wall surface (40a), a pair of first holding portions (41) each covered with an inner surface of each of a pair of hood portions (41a), and a second holding portion (42) located more distant from a circuit board (2) than the first holding portions. The terminals include a pair of first terminals (20) held by the first holding portions, and a second terminal (30) held by the second holding portion. The second terminal has an intermediate portion (33) between a holding target portion (32) held by the second holding portion and a contact portion (34) to be connected to the circuit board. The intermediate portion is press-fitted in a gap (S) between respective outer surfaces (44) of the hood portions.

Abstract: A board-mounting connector includes a cylindrical terminal and a housing holding the cylindrical terminal. The cylindrical terminal includes a cylindrical portion in contact with a mating terminal, a contact portion extending in a direction intersecting a fitting direction so as to be connected to a circuit board, and an intermediate portion supported by the housing between the cylindrical portion and the contact portion. The cylindrical portion includes a slit defined, by bending a plate-shaped conductor into a cylindrical shape and abutting one edge portion thereof against another edge portion thereof, between the one edge portion and the other edge portion. Further, the slit is formed such that a slit tip end portion located on a mating terminal side of the cylindrical portion and a slit base end portion located on an intermediate portion side thereof are located at offset positions in a peripheral direction of the cylindrical portion.

Abstract: A board-mounted connector (1) includes plural terminals (10) and a housing (40) holding the terminals. The housing has, on its wall surface (40a), a pair of first holding portions (41) each covered with an inner surface of each of a pair of hood portions (41a), and a second holding portion (42) located more distant from a circuit board (2) than the first holding portions. The terminals include a pair of first terminals (20) held by the first holding portions, and a second terminal (30) held by the second holding portion. The second terminal has an intermediate portion (33) between a holding target portion (32) held by the second holding portion and a contact portion (34) to be connected to the circuit board. The intermediate portion is press-fitted in a gap (S) between respective outer surfaces (44) of the hood portions.

Abstract: A terminal reception chamber (201) of a connector (1) includes a first chamber (201A), a second chamber (201B) and a third chamber (201C). The connector includes a first housing (100) defining a mating terminal insertion hole (102), a second housing (200) defining the first chamber and the second chambers and attached to the first housing, and a third housing (300) defining the third chambers and attached to the first housing and the second housing to contact with the first housing and the second housing and to inseparably connect the first housing and the second housing.

Abstract: A terminal reception chamber (201) of a connector (1) includes a first chamber (201A), a second chamber (201B) and a third chamber (201C). The connector includes a first housing (100) defining a mating terminal insertion hole (102), a second housing (200) defining the first chamber and the second chambers and attached to the first housing, and a third housing (300) defining the third chambers and attached to the first housing and the second housing to contact with the first housing and the second housing and to inseparably connect the first housing and the second housing.

Abstract: A sleep stage determination apparatus is provided with: a first normalization unit that performs a first normalization processing on the intensity of a user's heartbeat signal calculated using a gain value of gain control that is performed on the heartbeat signal so that the peak value is controlled to be constant; a second normalization unit that performs a second normalization processing on the intensity of the heartbeat signal; a third normalization unit that performs a third normalization processing on a first normalized heartbeat intensity; and a sleep stage determination unit that determines the stage of sleep on the basis of the second normalized heartbeat intensity obtained by the second normalization unit and variances indicating data variations in a predetermined period calculated for the normalized heartbeat intensity data obtained by the first normalization unit and the third normalization unit.

Abstract: A terminal contact portion (15) of a female terminal (11) includes: a bottom plate (35); a first side plate (37) and a second side plate (41); a top plate (39) continuously bent from the first side plate (37); an elastic piece (19) bent to be overlaid on the top plate (39) at an elastic piece bent portion (47) corresponding to an end portion of the top plate (39) along a terminal lengthwise direction; a pair of engaging projections (43) provided to project in a bent edge portion of the elastic piece (19); and a pair of engaging holes (45) formed in the first side plate (37) correspondingly to the engaging projections (43).

Abstract: A connector (11) is provided with a connector housing (13) which is formed to be divided into a connector section (17) with a terminal accommodation chamber (23) formed therein, and a connector cover section (19), and in which the connector section (17) and the connector cover section (19) are integrated with each other by being slide-fitted to each other. A spacer (15) which is locked to the connector housing (13) at a temporary locking position and a final locking position penetrates the connector section (17) and the connector cover section (19), thereby restricting movements of the connector section (17) and the connector cover section (19) in a slide fitting release direction (E), whereby the connector housing (13) is integrally retained.

Abstract: A connector (11) is provided with a connector housing (13) which is formed to be divided into a connector section (17) with a terminal accommodation chamber (23) formed therein, and a connector cover section (19), and in which the connector section (17) and the connector cover section (19) are integrated with each other by being slide-fitted to each other. A spacer (15) which is locked to the connector housing (13) at a temporary locking position and a final locking position penetrates the connector section (17) and the connector cover section (19), thereby restricting movements of the connector section (17) and the connector cover section (19) in a slide fitting release direction (E), whereby the connector housing (13) is integrally retained.

Abstract: A connector housing includes a terminal accommodating chamber, a lance and a pair of arms. The terminal accommodating chamber is formed with an opening configured such that a terminal is inserted therethrough. The lance extends from a top wall of the terminal accommodating chamber toward the opening in an extending direction. The pair of arms are respectively formed integrally to both lateral side surfaces of the lance, extend from both the lateral side surfaces to front and back sides of the lance in the extending direction, and are connected to a bottom wall of the terminal accommodating chamber. An unlocking protrusion is formed in one of the arms.

Abstract: A terminal contact portion (15) of a female terminal (11) includes: a bottom plate (35); a first side plate (37) and a second side plate (41); a top plate (39) continuously bent from the first side plate (37); an elastic piece (19) bent to be overlaid on the top plate (39) at an elastic piece bent portion (47) corresponding to an end portion of the top plate (39) along a terminal lengthwise direction; a pair of engaging projections (43) provided to project in a bent edge portion of the elastic piece (19); and a pair of engaging holes (45) formed in the first side plate (37) correspondingly to the engaging projections (43).

Abstract: A connector housing includes a terminal receiving chamber and a pair of lances for locking the terminal on both sides of the terminal receiving chamber. A terminal pullout jig inserted into the connector housing displaces the lances to respective unlocking positions, thus pulling out the terminal from the terminal receiving chamber. The connector housing includes a pair of unlocking wall portions configured to be elastically deformed integrally with the pair of lances respectively. The terminal pullout jig includes an unlocking arm portion configured to displace the pair of the lances to the respective unlocking positions, and a terminal pressing portion for pressing the terminal in a terminal pullout direction.

Abstract: A terminal locking structure for locking a terminal in a terminal accommodation chamber of a connector housing, the terminal locking structure comprises: a locking lance configured to lock the terminal to prevent the terminal from coming off from the terminal accommodation chamber, the locking lance being bendable in a direction intersecting the insertion direction of the terminal into the terminal accommodation chamber; and a flexible arm bendable in the direction intersecting the insertion direction of the terminal into the terminal accommodation chamber together with the locking lance, the flexible arm being formed extending from a front end of the locking lance to the insertion opening side provided for a corresponding terminal in the terminal accommodation chamber and being connected to an inner wall of the terminal accommodation chamber.

Abstract: A connector assembling structure includes: a connector including a connector housing provided with terminal chambers, lance entry holes opening into the terminal chambers, and a retainer insertion hole opening into the terminal chambers, terminals inserted and housed in the terminal chambers, and a retainer inserted in the retainer insertion hole to lock the terminals housed in the terminal chambers and thereby to prevent the terminals from moving in the direction opposite to the insertion direction of the terminals; and a jig detachably provided on the connector housing, and including flexible locking lances which enter the terminal chambers via the lance entry holes in the state in which the jig is attached to the connector housing.

Abstract: A connector housing includes a terminal receiving chamber and a pair of lances for locking the terminal on both sides of the terminal receiving chamber. A terminal pullout jig inserted into the connector housing displaces the lances to respective unlocking positions, thus pulling out the terminal from the terminal receiving chamber. The connector housing includes a pair of unlocking wall portions configured to be elastically deformed integrally with the pair of lances respectively. The terminal pullout jig includes an unlocking arm portion configured to displace the pair of the lances to the respective unlocking positions, and a terminal pressing portion for pressing the terminal in a terminal pullout direction.

Abstract: A connector housing includes a terminal accommodating chamber, a lance and a pair of arms. The terminal accommodating chamber is formed with an opening configured such that a terminal is inserted therethrough. The lance extends from a top wall of the terminal accommodating chamber toward the opening in an extending direction. The pair of arms are respectively formed integrally to both lateral side surfaces of the lance, extend from both the lateral side surfaces to front and back sides of the lance in the extending direction, and are connected to a bottom wall of the terminal accommodating chamber. An unlocking protrusion is formed in one of the arms.