摘要:
A method for joining two materials together to form a compact leak-resistant seal, particularly suited for use in thermal inkjet print cartridge ink reservoirs. The seal employs a shrink fit to clamp the two materials together. The method includes the steps of forming the first material into a desired first shot structure, placing the first shot structure in a second shot mold, and injecting the second material into the mold under adequate pressure and at an appropriate temperature. The second material has a high degree of mold shrinkage. Upon cooling, the second material shrinks tightly onto the first shot structure to form a molded joint which keeps air out and ink in when wetted and during normal shipping, storage, and operating conditions.
摘要:
A thermal ink-jet (TIJ) pen including a plastic frame structure and side covers. To attach the covers to the plastic frame without the use of adhesives, screws, thermal or ultrasonic processes, protruding metal tabs from the cover are press fit into corresponding recess features of the plastic frame. The tabs are designed to displace plastic surrounding the frame recesses to lock the cover to the frame. The resulting frame/cover seam resists shear, axial and transverse forces that occur as a result of externally applied loads to the pen.
摘要:
A method preparing for tiling a surface generally includes the steps of: measuring the surface with a cable measuring device to produce a digitized plan of the surface; displaying a plurality of possible tile layout for the surface on a display of a computer containing the produced digitized plan and programmed to display tile layouts for the surface depending on parameters including tile size, grout width, and tile orientation; selecting a tile layout, and placing the selected tile layout on the surface with the device. The method may include using the device for placing cut lines on the tiles.
摘要:
A pressure head (10) for contacting a workpiece (230) through relative movement in the vertical Z-direction includes a frame (20), a horn (100) for contacting the workpiece (230) and a gimbal (40) connected to the frame (20). The gimbal (40) supports the horn (100) such that the horn (100) can rotate about orthogonal X and Y rotation axes and can translate in the Z-direction relative to the frame (20). Three adjustment arms (170) movably connected to the frame (20) each apply a force on the horn (100) at points determining a plane for rotating the horn (100) about the X-axis or the Y-axis to a fixed position before contact with the workpiece (230). The adjustment arms (170) also provide electrical connection to electrical devices (136, 138) on the horn (100). A movable contact arm (190) connected to the frame (20) also contacts the horn (100) for providing an electrical connection.
摘要:
A method of attaching an ink-jet printhead assembly to the headland region of an ink-jet pen cartridge. The cartridge includes a frame structure fabricated of a rigid plastic frame member formed of a first plastic material and a polymeric second material molded to the frame member. A headland region is defined at the tip of a snout region of the cartridge. The second plastic material forms a compliant beam at the headland region. The printhead assembly includes a dielectric layer and a printhead die. The printhead assembly is attached to the headland region after alignment by attaching the dielectric layer of the assembly to the compliant beam formed by the second plastic material. As the pen is subjected to temperature extremes, and the first plastic material expands or shrinks more than the cover layer and flexible interconnection circuit materials, the compliant beam flexes, reducing stresses which can lead to pen failures.
摘要:
Precise alignment between two or more nozzle plates affixed to print cartridges installed in a single carriage of an ink printer is achieved by machining datum projections on each print cartridge after its nozzle plate has been permanently secured to the print cartridge. The machined datum projections on the print cartridge contact surfaces on the carriage when the print cartridge is installed in the carriage such that the dimensions of the datums affect the position of the cartridge, and hence the nozzle plate, within the carriage.
摘要:
A method preparing for tiling a surface generally includes the steps of: measuring the surface with a cable measuring device to produce a digitized plan of the surface; displaying a plurality of possible tile layout for the surface on a display of a computer containing the produced digitized plan and programmed to display tile layouts for the surface depending on parameters including tile size, grout width, and tile orientation; selecting a tile layout, and placing the selected tile layout on the surface with the device. The method may include using the device for placing cut lines on the tiles.
摘要:
A device for measuring the length of a cable under tension moved through the device generally comprises a frame, a measuring pulley rotatably mounted on the frame; an anti-slip device for rollingly holding the midsection of the cable in a non-slipping manner against the measuring pulley such that movement of the cable rotates the measuring pulley, and a rotation sensor for sensing the rotation of the measuring pulley and producing a signal indicative of the rotation thereof. The anti-slip device generally comprises one or more loading rollers and a loading assembly including a flexible tension member for applying loading to the loading rollers such that movement of the cable rotates the measuring pulley. A location measuring device incorporating the cable length measuring device determines the direction and distance from the location measuring device to a free end of the cable.
摘要:
A device for measuring the length of a cable under tension moved through the device generally comprises a frame, a measuring pulley rotatably mounted on the frame; an anti-slip device for rollingly holding the midsection of the cable in a non-slipping manner against the measuring pulley such that movement of the cable rotates the measuring pulley, and a rotation sensor for sensing the rotation of the measuring pulley and producing a signal indicative of the rotation thereof. The anti-slip device generally comprises one or more loading rollers and a loading assembly including a flexible tension member for applying loading to the loading rollers such that movement of the cable rotates the measuring pulley. A location measuring device incorporating the cable length measuring device determines the direction and distance from the location measuring device to a free end of the cable.