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A back-mounted load-carrying device, such as a backpack or a child carrier, having an adjustable waist belt assembly is described. The waist belt assembly is freely slidable between a variety of vertical positions along a rigid frame. A locking mechanism, actuatable while the device is being worn, p

A back-mounted load-carrying device, such as a backpack or a child carrier, having an adjustable waist belt assembly is described. The waist belt assembly is freely slidable between a variety of vertical positions along a rigid frame. A locking mechanism, actuatable while the device is being worn, permits a user to adjust the waist belt assembly to rest comfortably on his hip and around his waist on the fly and subsequently secure the waist belt in the desired position. A pair of hip-load transfer members that are rigid to loads applied in the vertical direction comprise the waist belt assembly and rest against the hip of a user when the waist belt is secured. These members help to transfer load from the device to the user's hips and act to lessen the amount of load carried by the user's shoulder and back, the result being greater comfort and less fatigue.

대표청구항 ▼

A back-mounted load-carrying device, such as a backpack or a child carrier, having an adjustable waist belt assembly is described. The waist belt assembly is freely slidable between a variety of vertical positions along a rigid frame. A locking mechanism, actuatable while the device is being worn, p

A back-mounted load-carrying device, such as a backpack or a child carrier, having an adjustable waist belt assembly is described. The waist belt assembly is freely slidable between a variety of vertical positions along a rigid frame. A locking mechanism, actuatable while the device is being worn, permits a user to adjust the waist belt assembly to rest comfortably on his hip and around his waist on the fly and subsequently secure the waist belt in the desired position. A pair of hip-load transfer members that are rigid to loads applied in the vertical direction comprise the waist belt assembly and rest against the hip of a user when the waist belt is secured. These members help to transfer load from the device to the user's hips and act to lessen the amount of load carried by the user's shoulder and back, the result being greater comfort and less fatigue. nk failure. 5. The multiport switch of claim 3, wherein data transmission is enabled for an inactive port in the first trunk based on the stored link status indicating that a change occurred in a link associated with the inactive port and the change represents a link recovery. 6. The multiport switch of claim 1, comprising: a plurality of output queues corresponding to ports on the multiport switch, each of the output queues configured to store information associated with data frames queued for transmission from the respective port, wherein data frames queued for transmission from a first port in the first trunk are discarded when a link failure associated with the first port is detected. 7. The multiport switch of claim 1, wherein the trunking information comprises: a trunk bit for indicating whether a port is a part of a trunk; and a trunk active bit for indicating whether the port is an active part of a trunk. 8. In a multiport switch that controls communication of data frames between stations and is configured to support trunking, a method of handling changes in a trunked data path, comprising: storing trunking information associated with ports on the multiport switch, the trunking information including information as to whether each said ports is part of a trunk, and if part of a trunk, information as to whether said each said ports is an active port or inactive port of the trunk, receiving a data frame; generating data forwarding information for the data frame; monitoring link status associated with the respective ports on the multiport switch, wherein a plurality of ports comprise active ports of a first trunk; and setting data transmission capability for each of the plurality of ports in the first trunk based on the link status associated with the corresponding port. 9. The method of claim 8, comprising: detecting a change in link status associated with a first port in the first trunk, wherein the change represents a link failure; and disabling transmission capability from the first port, in response to the detected change in link status. 10. The method of claim 9, comprising: reconfiguring the first trunk to exclude the first port as an active port of the first trunk. 11. The method of claim 10, comprising: discarding frames queued for transmission from said first port. 12. The method of claim 8, comprising: detecting a change in link status associated with a first port in the first trunk, wherein the first port is an inactive port of the first trunk and the change represents a link recovery; and enabling transmission capability through the first port and activating the first port, in response to the detected change in link status of the first port. 13. A multiport switch configured for controlling communication of data frames between stations and to support trunking, comprising: a table for storing address information and data forwarding information; a decision making engine configured to search the table and generate data forwarding information for a data frame; a plurality of programmable registers corresponding to ports on the multiport switch, each of the programmable registers configured to store trunking information for one of the respective ports, wherein the trunking information includes information as to whether each said ports is part of a trunk, and if part of a trunk, information as to whether said each said port is an active port or inactive port of the trunk, and a plurality of ports comprise active ports of a first trunk based on the trunking information; and a link status indicator configured to store a link status associated with each of the respective ports on the multiport switch, wherein data transmission capability from each of the plurality of ports in the first trunk is set based on the link status associated with the corresponding port. 14. The multiport switch of claim 13, comprising: a plurality of configuration registers correspondi ng to said each said ports on the multiport switch, each of the configuration registers configured to store data transmission information indicating whether transmission is enabled for the respective port. 15. The multiport switch of claim 14, wherein data transmission is disabled for a first port in the first trunk, based on a change in the link status associated with the first port, wherein the change represents a link failure. 16. The multiport switch of claim 14, wherein data transmission is enabled for an inactive port in the first trunk, based on a change in the link status associated with the inactive port, wherein the change represents a link recovery. 17. The multiport switch of claim 13, wherein the link status indicator comprises: a plurality. of link status registers corresponding to said each said ports on the multiport switch, each of the link status registers configured to store information indicating whether a link status has changed. 18. The multiport switch of claim 17, comprising: an OR gate coupled to each of the link status registers, wherein the output of the OR gate is transmitted to a control device to signal that a link status has changed. 19. The multiport switch of claim 13, comprising: a plurality of output queues corresponding to said each said ports on the multiport switch, each of the output queues configured to store pointer information associated with data frames queued for transmission from the respective port, wherein data frames queued for transmission from the first port in the first trunk are discarded when a link failure associated with the first port is detected. second block. 5. The head of claim 4, wherein the first and second blocks are bonded together by glass fit bonding, or direct wafer fusion bonding, or anodic bonding. 6. The head of claim 1, wherein the second block comprises a magnetic coil below the first lens and in a cavity in the second block. 7. The head of claim 1, further comprising as third block, the third block disposed between the first and second blocks and coupled thereto, and comprising a second lens etched in a surface of the third block and aligned with the first lens. 8. The head of claim 7, wherein the third block is bonded to the second block. 9. The head of claim 8, wherein the second and third block comprise GaP. 10. The head of claim 9, wherein the first lens and the second lens provide a numerical aperture (NA) of at least 1.3. 11. The head of claim 1, wherein the second block comprises a material having a high refractive index and capable of being etched. 12. A storage system comprising: a source, the source providing a light; a storage disk a head; a first block; a reflective element, the reflective element coupled to the first block to direct the light to the storage disk; a second block, the second block coupled to the first block; a first lens etched into a first surface of the second block, wherein the first lens is a near-field lens and focuses the light onto the disk; and an air bearing etched into a second surface of the second block. 13. The head of claim 12, wherein the second block comprises GaP. 14. The head of claim 12, wherein a bottom of the first lens of the second block comprises a bottom co-planar with the air bearing. 15. The head of claim 12, wherein the first block is bonded to the second block. 16. The head of claim 12, wherein the second block comprises a magnetic coil below the first lens and in a cavity in the second block. 17. The head of claim 12, further comprises a third block, the third block disposed between the first and second blocks and bonded thereto. 18. The head of claim 17, further comprising a second lens, wherein the third block comprises the second lens etched into a surface of the third block. im 1, wherein the step of preparing the double walled vessel further comprises the steps of: forming a configured double walled structure wherein a cylindrical inner vessel with a bottom and a cylindrical outer vessel form an integral structure joined at a mouth portion thereof by means of an integral double molding; fixing a metallic heat radiation preventing material to at least one of the outer surface of said inner vessel and the inner surface of said outer vessel; and joining a bottom plate having said opening to an open bottom of said outer vessel. 5. A method for producing an insulated vessel according to claim 1, wherein the step of evacuating the air from said space between said inner vessel and said outer vessel of said double walled vessel and the step of filling said space with said low thermoconductive gas are carried out while minimizing the pressure difference between said space and the environment outside the double walled vessel. 6. A method for producing an insulated vessel according to claim 1, wherein the opening provided in the double walled vessel is an evacuation hole. 7. A method for producing an insulated vessel according to claim 1, wherein the opening provided in the double walled vessel is an evacuation tube. t of the molding groove by the rolling roller during the plastic deformation. 2. The plastic processing method of the metal rod material according to claim 1, wherein the sectional area of said molding groove is smaller than the sectional area of the metal rod material on a tip-end side along the longitudinal direction of the metal rod material, said molding groove having a width and depth larger in size than a diameter of the rod material on a rear-end side, and wherein the sectional area of said molding groove gradually decreases toward the tip end of the molding groove on the tip-end side. 3. The plastic processing method of the metal rod material according to claim 1, wherein said rolling roller is rotated together with a roller having a diameter larger than a diameter of the rolling roller, and pressed in contact with said rod material by the large-diameter roller. 4. The plastic processing method of the metal rod material according to claim 1, wherein said rolling roller is rotated together with a roller having a diameter larger than a diameter of the rolling roller, and a plurality of rolling rollers are supported by a retainer ring disposed coaxially with the large-diameter roller in an outer periphery of the large-diameter roller, arranged in a planetary shape, and pressed in contact with said rod material by the large-diameter roller. 5. The plastic processing method of the metal rod material according to claim 1, further comprising the steps of removing said burr by barrel grinding, and chamfering a plastically deformed portion of said rod material. 6. The plastic processing method of the metal rod material according to claim 1, further comprising the steps of removing said burr by electrolytic grinding, and forming a cutting edge on a plastically deformed portion of said rod material. 7. The plastic processing method of the metal rod material according to claim 1, further comprising the steps of removing said burr by chemical grinding, and forming a cutting edge on a plastically deformed portion of said rod material. er holder with the clamper is displaced in a motion direction of the clamper holding chassis and a clamper radial direction relative to the clamper holding chassis, in cooperation with a motion of the lever relative to the clamper holding chassis. thereof is located opposite to that of the disk with respect to said rotational shaft by a centrifugal force generated during rotation of said hollow tube. 13. A disk player as claimed in claim 2, wherein the cross section of said hollow tube in which said mobile unit is located has a shape selected from the group consisting of a rectangular shape, an oval shape having a longer axis in a latitudinal direction with respect to said rotational shaft, and an inwardly bulging polygonal shape in which a portion of each side contacting said mobile unit bulges inward. 14. A disk player as claimed in claim 2, wherein said rigid body is formed of a non-magnetic material in order to avoid being influenced by a magnetic force. 15. A disk player as claimed in claim 14, wherein said tube is formed of a substance selected from the group consisting of tungsten carbide (WC), beryllium steel (CuBe), Hastelloy C-276, silicon nitride (Si3N4), zirconia (ZrO2), brass, aluminum, austenite-series steel YHD50, a non-magnetic metal such as SUS300, SUS304 and SUS316, ceramic and a synthetic resin. 16. A disk player as claimed in claim 2, wherein said hollow tube is formed of a non-oxidizing substance which does not corrode. 17. A disk player as claimed in claim 16, wherein said hollow tube is formed of a substance selected from the group consisting of SUS300, ceramic and a synthetic resin. 18. A disk player as claimed in claim 2, wherein the surface of said hollow tube facing said mobile unit is anti-oxidation coated. 19. A disk player as claimed in claim 18, wherein said anti-oxidation coating is formed of one selected from the group consisting of zinc and nickel-chromium plated over a base material of carbon steel or chromium steel. 20. A disk player as claimed in claim 1, wherein said self-compensating dynamic balancer includes at least two circular tubes which are arranged to be concentric and adjacent to each other and have mobile units located in the respective tubes. 21. A disk player as claimed in claim 20, wherein the mobile unit of each of the respective tubes is a rigid body which can one of roll and slide in the respective tubes. 22. A disk player as claimed in claim 21, wherein weights of said rigid bodies located in the respective tubes differ from each other. 23. A disk player comprising: a deck base; a deck plate elastically coupled to said deck base; at least one buffering member interposed between said deck base and said deck plate for protecting said deck plate from external impacts; a spindle motor having a rotational shaft and being mounted to said deck plate for providing a rotational force to a disk; a turntable mounted to said rotational shaft of said spindle motor for accommodating the disk; a clamper for holding the disk in place on said turntable; an optical pickup installed at said deck plate to be capable of moving across the disk; and a self-compensating dynamic balancer mounted to at least one among members which are rotated by the rotational force provided by said spindle motor, the center of gravity of said self-compensating dynamic balancer being located opposite to that of said disk with respect to said rotational shaft of said spindle motor by a centrifugal force generated during rotation of the disk, thereby to compensate for vibrations due to an eccentric center of gravity of said disk, wherein said self-compensating dynamic balancer includes a support plate fixed to said rotational shaft of said spindle motor and at least one pivoting plate hinge-coupled to said support plate parallel to said support plate. 24. A disk player as claimed in claim 1, wherein said self-compensating dynamic balancer is formed to incorporate said turntable. 25. A disk player as claimed in claim 24, wherein said turntable includes a placing member, which has a coupling hole coupled to said spindle motor and a placing surface on which the disk is placed, and a coupling protrusion which is forme