Abstract: A fuel tank manufacturing apparatus for a fuel tank, the fuel tank having therein a built-in component with a head portion, a neck portion, and a shoulder portion, and having the built-in component anchored to a tank body with a part of a parison wrapped around the neck portion during molding the tank body, includes: a pair of molding dies to have the parison transferred to the built-in component by blow molding; and shaping devices respectively provided in the pair of molding dies, wherein the shaping devices each include: an end surface to contact the parison; a recess provided in the end surface to receive the head portion and the neck portion and covered by the shoulder portion during molding; and an air hole provided in an area of a bottom surface of the recess corresponding to the head portion through which air pressure is applied toward the head portion.

Abstract: A fuel tank manufacturing apparatus for a fuel tank, the fuel tank having therein a built-in component with a head portion, a neck portion, and a shoulder portion, and having the built-in component anchored to a tank body with a part of a parison wrapped around the neck portion during molding the tank body, includes: a pair of molding dies to have the parison transferred to the built-in component by blow molding; and shaping devices respectively provided in the pair of molding dies, wherein the shaping devices each include: an end surface to contact the parison; a recess provided in the end surface to receive the head portion and the neck portion and covered by the shoulder portion during molding; and an air hole provided in an area of a bottom surface of the recess corresponding to the head portion through which air pressure is applied toward the head portion.

Abstract: An image forming apparatus is provided with: an image forming unit having a photosensitive member, a charger, and a developer carrier, the image forming unit being configured to transfer the developer image to a recording sheet to form an image on the recording sheet; a motor configured to drive the photosensitive member and the developer carrier; a controller configured to control the motor and the charger, and a re-conveyance mechanism configured to reverse the recording sheet discharged from the image forming unit and to convey the recording sheet back towards the image forming unit. The controller is configured to turn off the charger after the motor is turned off, during a time period after the recording sheet is discharged from the image forming unit until the recording sheet is re-conveyed to the image forming unit by the re-conveyance mechanism.

Abstract: There is provided a parison guide which improves a flatness of parison with a simple configuration. A parison guide (1) guides a parison (P) which has an arc shape in horizontal cross section and is discharged from an extrusion apparatus (2). The parison guide is fixed to a discharge-side end portion of the extrusion apparatus (2). The parison guide includes a contact face (17) configured to come into contact with and guide an edge portion of the parison to flatten the parison. Preferably, the contact face (17) includes a curved surface, and the contact face (17) has a curvature of a horizontal cross section which gets smaller in a discharge direction.

Abstract: There is provided a parison guide which improves a flatness of parison with a simple configuration. A parison guide (1) guides a parison (P) which has an arc shape in horizontal cross section and is discharged from an extrusion apparatus (2). The parison guide is fixed to a discharge-side end portion of the extrusion apparatus (2). The parison guide includes a contact face (17) configured to come into contact with and guide an edge portion of the parison to flatten the parison. Preferably, the contact face (17) includes a curved surface, and the contact face (17) has a curvature of a horizontal cross section which gets smaller in a discharge direction.

Abstract: A vehicle seat includes: a seat frame; a seat cover provided with a rupture portion; an airbag disposed in the seat; a pair of webbings provided so as to surround the airbag on a back surface side of the seat cover, one end sides of the webbings being mounted to the rupture portion; and a mounting section mounting the other end sides of the webbings to the seat frame. In a vehicle collision, the airbag is protruded out of the seat by rupturing and opening the rupture portion. The mounting section is provided at a place where a body of the seat frame is disposed. When the airbag is uninflated, the mounting section holds the other ends of the webbings apart from the body of the seat frame, and an inhibition portion in the mounting section inhibits contact between an edge-shaped portion formed in the body and the webbings.

Abstract: A vehicle seat includes: a seat frame; a seat cover provided with a rupture portion; an airbag disposed in the seat; a pair of webbings provided so as to surround the airbag on a back surface side of the seat cover, one end sides of the webbings being mounted to the rupture portion; and a mounting section mounting the other end sides of the webbings to the seat frame. In a vehicle collision, the airbag is protruded out of the seat by rupturing and opening the rupture portion. The mounting section is provided at a place where a body of the seat frame is disposed. When the airbag is uninflated, the mounting section holds the other ends of the webbings apart from the body of the seat frame, and an inhibition portion in the mounting section inhibits contact between an edge-shaped portion formed in the body and the webbings.

Abstract: A vehicle seat includes: a seat frame; a seat cover provided with a rupture portion; an airbag disposed in the seat; a pair of webbings provided so as to surround the airbag on a back surface side of the seat cover, one end sides of the webbings being mounted to the rupture portion; and a mounting section mounting the other end sides of the webbings to the seat frame. In a vehicle collision, the airbag is protruded out of the seat by rupturing and opening the rupture portion. The mounting section is provided at a place where a body of the seat frame is disposed. When the airbag is uninflated, the mounting section holds the other ends of the webbings apart from the body of the seat frame, and an inhibition portion in the mounting section inhibits contact between an edge-shaped portion formed in the body and the webbings.

Abstract: A vehicle seat includes: a seat frame; a seat cover provided with a rupture portion; an airbag disposed in the seat; a pair of webbings provided so as to surround the airbag on a back surface side of the seat cover, one end sides of the webbings being mounted to the rupture portion; and a mounting section mounting the other end sides of the webbings to the seat frame. In a vehicle collision, the airbag is protruded out of the seat by rupturing and opening the rupture portion. The mounting section is provided at a place where a body of the seat frame is disposed. When the airbag is uninflated, the mounting section holds the other ends of the webbings apart from the body of the seat frame, and an inhibition portion in the mounting section inhibits contact between an edge-shaped portion formed in the body and the webbings.

Abstract: An image forming apparatus is provided with: an image forming unit having a photosensitive member, a charger, and a developer carrier, the image forming unit being configured to transfer the developer image to a recording sheet to form an image on the recording sheet; a motor configured to drive the photosensitive member and the developer carrier; a controller configured to control the motor and the charger, and a re-conveyance mechanism configured to reverse the recording sheet discharged from the image forming unit and to convey the recording sheet back towards the image forming unit. The controller is configured to turn off the charger after the motor is turned off, during a time period after the recording sheet is discharged from the image forming unit until the recording sheet is re-conveyed to the image forming unit by the re-conveyance mechanism.

Abstract: A reference value of an electric current flowing through each charging member is determined and recorded in a memory unit at a predetermined time by a reference value recording unit. A voltage application unit is caused to start applying a voltage to the charging members upon startup of an image forming apparatus, and a measurement value of an electric current flowing through each charging member is determined by a measurement unit. A charging member of which the measurement value is such that an absolute value of a difference between the reference value and the measurement value is not smaller than a predetermined value is marked by a determination unit. If there is at least one marked charging member and at least one not-marked charging member, a notification produced by a messaging unit is given through a notification unit.

Abstract: An image forming apparatus includes: a first photosensitive member; a second photosensitive member; a third photosensitive member; a first scorotron-type charger that is configured to charge the first photosensitive member; a second scorotron-type charger that is configured to charge the second photosensitive member; a third scorotron-type charger that is configured to charge the third photosensitive member; a first voltage applying circuit, which is connected to the first scorotron-type charger, and which is configured to apply a voltage to the first scorotron-type charger; and a second voltage applying circuit, which is commonly connected to the second scorotron-type charger and the third scorotron-type charger, and which is configured to apply a voltage to the second scorotron-type charger and the third scorotron-type charger.

Abstract: A reference value of an electric current flowing through each charging member is determined and recorded in a memory unit at a predetermined time by a reference value recording unit. A voltage application unit is caused to start applying a voltage to the charging members upon startup of an image forming apparatus, and a measurement value of an electric current flowing through each charging member is determined by a measurement unit. A charging member of which the measurement value is such that an absolute value of a difference between the reference value and the measurement value is not smaller than a predetermined value is marked by a determination unit. If there is at least one marked charging member and at least one not-marked charging member, a notification produced by a messaging unit is given through a notification unit.

Abstract: An image forming apparatus includes: a first photosensitive member; a second photosensitive member; a third photosensitive member; a first scorotron-type charger that is configured to charge the first photosensitive member; a second scorotron-type charger that is configured to charge the second photosensitive member; a third scorotron-type charger that is configured to charge the third photosensitive member; a first voltage applying circuit, which is connected to the first scorotron-type charger, and which is configured to apply a voltage to the first scorotron-type charger; and a second voltage applying circuit, which is commonly connected to the second scorotron-type charger and the third scorotron-type charger, and which is configured to apply a voltage to the second scorotron-type charger and the third scorotron-type charger.

Abstract: A charger is opposed to a charging subject member and charges the charging subject member by generating corona discharge. The charger includes: a discharge electrode; and a pair of facing electrodes that are disposed to face with each other being the discharge electrode interposed therebetween and arranged to be distant from the discharge electrode, wherein the facing electrodes are arranged that an interval between the facing electrodes gradually decreases towards the charging subject member.

Abstract: A demodulation method, and apparatus, for reproducing data from a received signal. The demodulation method includes the steps of: receiving a signal including a series of frames each containing a training signal for automatic equalization processing and a data signal; controlling an amplitude of the received signal by AGC processing so as to make the amplitude a predetermined level; conducting demodulation processing on the signal subjected to the AGC processing; periodically conducting automatic equalization processing so as to adapt the modulated signal to characteristics of the signal transmission path based on each training signal of the frame; and setting values of a time constant of the AGC processing and an update repetition period of the automatic equalization processing so as to satisfy a predetermined relation.

Abstract: A charger is opposed to a charging subject member and charges the charging subject member by generating corona discharge. The charger includes: a discharge electrode; and a pair of facing electrodes that are disposed to face with each other being the discharge electrode interposed therebetween and arranged to be distant from the discharge electrode, wherein the facing electrodes are arranged that an interval between the facing electrodes gradually decreases towards the charging subject member.

Abstract: An encoder and a decoder each having an error correcting operation, and a data transmission apparatus using them for data transmission in a multilevel modulation system. In transmission data is converted into parallel data. One bit thereof is inputted to a convolutional encoder to output two bits. Two bit data and another signal of the parallel data not inputted to the convolutional encoder are respectively separated into real part and imaginary part to independently decide signal points for the parallel data. In reception an area is similarly decided independently for real and imaginary parts and metric is assigned for the data. Real and imaginary parts are combined with each other for Viterbi decoding. Result thereof is fed to a convolutional encoder similar in constitution to that on transmission side. Using convolutional encoding output and decided area, transmission data is decoded.

Abstract: A demodulation method, and apparatus, for reproducing data from a received signal. The demodulation method includes the steps of: receiving a signal including a series of frames each containing a training signal for automatic equalization processing and a data signal; controlling an amplitude of the received signal by AGC processing so as to make the amplitude a predetermined level; conducting demodulation processing on the signal subjected to the AGC processing; periodically conducting automatic equalization processing so as to adapt the modulated signal to characteristics of the signal transmission path based on each training signal of the frame; and setting values of a time constant of the AGC processing and an update repetition period of the automatic equalization processing so as to satisfy a predetermined relation.

Abstract: An encoder and a decoder each having an error correcting operation, and a data transmission apparatus using them for data transmission in a multilevel modulation system. In transmission data is converted into parallel data. One bit thereof is inputted to a convolutional encoder to output two bits. Two bit data and another signal of the parallel data not inputted to the convolutional encoder are respectively separated into real part and imaginary part to independently decide signal points for the parallel data. In reception an area is similarly decided independently for real and imaginary parts and metric is assigned for the data. Real and imaginary parts are combined with each other for Viterbi decoding. Result thereof is fed to a convolutional encoder similar in constitution to that on transmission side. Using convolutional encoding output and decided area, transmission data is decoded.