摘要:
A needle bar thread guide device for a sewing machine comprises a needle bar thread guide which is fixed to the lower end portion of the needle bar of the sewing machine and has a thread retaining portion therein for guiding the needle thread and an auxiliary thread guide which is mounted on the needle bar above the needle bar thread guide in such a way as to be adjustable in its vertical position and has a threading hole therein for passing the needle thread therethrough so as to apply a frictional force to the needle thread by contacting the needle thread at the rim thereof, characterized in that the retaining point of the thread retaining portion and the contact point of the threading hole are shifted from each other in a plan view. As a result, the remaining length of the needle thread end under the needle eye after trimming can be made as short as possible and nevertheless the needle thread is effectively prevented from coming off the needle eye at the start of sewing operation, so that keeping the good appearance of the end portion of needle thread remaining in sewn products and preventing errors in sewing operation stand together.
摘要:
A wiper unit has a supporter secured to the arm of a sewing machine. A stopper is secured to the supporter. A wiper shaft is rotatably supported by the supporter. The stopper restricts the rotation of the shaft. A wiper is mounted on the shaft. The wiper has a wiper arm and a tip end thereof. The tip end has a hook for wiping the tip end of an upper thread. A wiper operation crank is secured to the wiper shaft for adjusting a turning operation thereof relative to the wiper. An operation link is connected by a pin to the operation crank. A driving unit drives the operation crank reciprocally and drives the crank and shaft to turn about the axis of the shaft.
摘要:
A thread end holding unit of a sewing machine employs a needle thread gripping puller driven so as to be positioned either at a thread catch position or a return position. The puller has a hook portion at a tip end thereof adapted for catching a needle thread extended from a needle when the needle thread gripping puller is positioned at the thread catch position. The needle thread is caught and held by the hook at the return position. First and second holding members are respectively fixedly mounted on a supporter fixed to the arm. These holding members have press portions forcibly pushed elastically by both sides of the needle thread gripping puller for pressing and holding the thread end of the needle thread caught by the hook when the hook portion is positioned at the return position.
摘要:
A thread cutting knife device in a sewing machine having a bed has a lower shaft rotatably supported at the bed and a throat plate mounted thereon. A hook is attached to the lower shaft and extends beyond a throat plate. A thread cutting knife and a loop spreading plate are adapted to cross between the hook and the throat plate to cut a needle thread looping portion at a cloth side and a bobbin thread. The knife and the plate are respectively rotatably supported by the lower shaft. The knife has a blade at an upper edge of the tip end thereof. The loop spreading plate has a thread dividing portion extending into the needle thread looping portion at the cloth side and a thread looping portion at the side of the needle. A thread drawing portion is formed at one edge of a base of the dividing portion for holding the needle thread looping portion at the cloth side and the bobbin thread. A blade positioned at the side of the throat plate and is opposed to and crosses the blade of the thread cutting knife.
摘要:
A 1,4-dihydropyridine derivative represented by the formula ##STR1## wherein R.sup.1 is a hydrogen atom, an alkoxy group having 1 to 4 carbon atoms, a mercapto group, an alkylcarbonylthio group in which the alkyl group has 1 to 4 carbon atoms or a benzoylthio group, R.sup.2 is a mercapto group, an alkylcarbonylthio group in which the alkyl group has 1 to 4 carbon atoms, a benzoylthio group or a 2-cyanoethylthio group, A and B are the same or different and are each an alkylene group having 1 to 4 carbon atoms, and X is a hydrogen atom, a halogen atom, a nitro group or a trifluoromethyl group is disclosed. These compounds increase the therapeutic effect of drug-resistant cancers.
摘要:
A lens machining apparatus is provided that can execute everything required in machining eyeglass lenses, from measurement to various kinds of machining, and still ensures high-precision machining. The apparatus includes a lens holding unit 12 which holds a lens 1 and causes the same to turn, a cutter 131 which cuts (edges) the circumferential surface of the lens in a prescribed cross-sectional shape, an end mill 141 which machines a groove in the circumferential surface of the lens whose circumferential surface has been cut (edged) and chamfers edges at the lens circumferential surface, and a lens measurement unit 15 which measures the shape and the position of the lens held by the lens holding unit.
摘要:
According to one embodiment, a phone terminal is connected to a network system. The network system includes a DHCP server. The phone terminal includes a repeater hub, an acquisition module, an assignment module and a communication module. The repeater hub includes a network port connected to the network system, and a port connected to an electronic device. The acquisition module acquires a first IP address for the phone terminal and a second IP address for the electronic device from the DHCP server. The assignment module assigns, in response to an IP address assignment request from the electronic device, the second IP address to the electronic device as a request source. The communication module communicates with the electronic device using the first IP address and the IP address assigned to the electronic device.
摘要:
According to one embodiment, a communication system includes a Network Address Translator (NAT) rooter and a telephone exchange apparatus. The NAT router comprises a transfer module configured to transfer a communication packet brought from the global network to the telephone exchange apparatus. The telephone exchange apparatus comprises a memory configured to store a map table in which a terminal ID specifying the terminal, and an address and a port number specifying the network are correlated with each other, and a controller configured to refer to the map table, and notify the terminal connected to the global network of an address and a port number of the telephone exchange apparatus's own apparatus as an address and a port number of the communication partner, and bring the communication path between the terminals into the apparatus.
摘要:
According to one embodiment, there is provided a communication system includes endpoints and server units. The endpoints include a transmitter and an information assignment module. The transmitter transmits a message of the registration request to one of the server units. The information assignment module assigns information used to discriminate a cause of generation of the registration request to the message. The server units include a specification module, a determination module and a registration processor. The specification module specifies the cause based on the information assigned to the received message. The determination module determines whether or not permit registration of the endpoint as a source of the received message based on the specified cause and priority level. The registration processor registers the endpoint when the registration is permitted. The registration processor instructs the endpoint to redirect the message when the registration is not permitted.
摘要:
According to one embodiment, a communication system includes a plurality of voice mail apparatuses which include mailboxes corresponding to a plurality of telephone terminals, and record a voice message transmitted to any one of the plural telephone terminals in a mailbox corresponding to the telephone terminal and a file server which is connected to each of the plural voice mail apparatuses via a network and includes a plurality of common mailboxes to be used in common with the plural voice mail apparatuses, wherein each of the plurality of voice mail apparatuses include a controller which transfers the voice message to the file server via the network in order to record the voice message in any one of the common mailboxes, when there is a request to record the voice message.