Abstract: The objective of the present invention is to use a simple circuit configuration and simple signal processing to provide a pulse radar device with which it is possible to reduce the impact of local signal carrier leakage on a received signal, and which makes it possible to perform high precision angle measurement using a multi-beam system. In order to measure the angle of an object, a pulse radar device is provided with at least two receiving antennas, and a reception circuit is provided with a signal selection switch for selectively switching between received signals received by the receiving antennas. The received signal contains a local signal leakage component, and a DC level of the received signal varies with the switching of the signal selection switch. In order to eliminate the impact of such DC level variations, a high-pass filter is disposed between a mixer and a frequency analyzer.

Abstract: [OBJECT] To surely remove a multi-order echo or interference from another radar apparatus [ORGANIZATION] A radar apparatus transmitting pulse signals at predetermined repetition cycles and receiving and analyzing the pulse signals reflected by a target object to thereby detect the target object has: a setting means (control unit 11) setting so that at least a part of the repetition cycles of the pulse signals is different; a detection means (speed detection/object detection unit 16) detecting a distance to the target object specified by the pulse signal; and a removal means (clutter removal unit 17) removing the target object as clutter when the distance to the target object detected in the different repetition cycle or in a period subsequent to the different repetition cycle by the detection means and the distance to the target object detected in the period other than that by the detection means are different.

Abstract: A radar system includes a plurality of radar devices each having a transmitting unit that transmits a high frequency signal to an object, a receiving unit that receives a signal reflected from the object, an individual control unit that controls transmission and reception timings, and a converting unit that converts an output of the receiving unit into digital data, and a central processing device having an integration process unit that processes information transmitted from the radar devices in association with positional information of the radar devices, a command control unit that controls operation timings of the individual control units, and a detection process unit that performs a process for detecting the object on the digital data before being processed by the integration process unit. Digital communication isolated from the transmission and reception timing controls at the individual control unit is performed between the radar devices and the central processing device.

Abstract: [OBJECT] To surely remove a multi-order echo or interference from another radar apparatus [ORGANIZATION] A radar apparatus transmitting pulse signals at predetermined repetition cycles and receiving and analyzing the pulse signals reflected by a target object to thereby detect the target object has: a setting means (control unit 11) setting so that at least a part of the repetition cycles of the pulse signals is different; a detection means (speed detection/object detection unit 16) detecting a distance to the target object specified by the pulse signal; and a removal means (clutter removal unit 17) removing the target object as clutter when the distance to the target object detected in the different repetition cycle or in a period subsequent to the different repetition cycle by the detection means and the distance to the target object detected in the period other than that by the detection means are different.

Abstract: The objective of the present invention is to use a simple circuit configuration and simple signal processing to provide a pulse radar device with which it is possible to reduce the impact of local signal carrier leakage on a received signal, and which makes it possible to perform high precision angle measurement using a multi-beam system. In order to measure the angle of an object, a pulse radar device is provided with at least two receiving antennas, and a reception circuit is provided with a signal selection switch for selectively switching between received signals received by the receiving antennas. The received signal contains a local signal leakage component, and a DC level of the received signal varies with the switching of the signal selection switch. In order to eliminate the impact of such DC level variations, a high-pass filter is disposed between a mixer and a frequency analyzer.

Abstract: A radar system includes a plurality of radar devices each having a transmitting unit that transmits a high frequency signal to an object, a receiving unit that receives a signal reflected from the object, an individual control unit that controls transmission and reception timings, and a converting unit that converts an output of the receiving unit into digital data, and a central processing device having an integration process unit that processes information transmitted from the radar devices in association with positional information of the radar devices, a command control unit that controls operation timings of the individual control units, and a detection process unit that performs a process for detecting the object on the digital data before being processed by the integration process unit. Digital communication isolated from the transmission and reception timing controls at the individual control unit is performed between the radar devices and the central processing device.

Abstract: An assembly includes a frame having a first wall and a second wall, a support shaft, an elastic member, and an engaging member. The engaging member has a first engaging portion, the first wall has a recessed portion, the second wall has a second engaging portion, and the support shaft has an insertion portion. The first engaging portion and the second engaging portion are engaged with each other in a state in which the insertion portion is fitted into the recessed portion and the elastic member is compressed by the engaging member.

Abstract: A protector for an ink cartridge container including a containing case body, an ink inlet for a recording head, a cartridge containing part into which an ink cartridge is removably insertable, and a door body capable of opening and closing an opening opposed to the ink inlet with the cartridge containing part sandwiched therebetween, the protector includes a protective cap unit including: a main body; a supporting rod protruded toward the ink inlet from the main body; a guiding funnel formed at a front edge of the supporting rod; and an elastic cap provided at an inner diametrical portion of the guiding funnel and capable of coming into close contact with the ink inlet, wherein: the protective cap unit is removable from and insertable into a containing case body; and the protective cap unit is formed as a different shape than that of the ink cartridge.

Abstract: An ink supply system includes an ink cartridge and an cartridge accommodating portion. An ink cartridge includes a cartridge case forming an ink chamber, an ink supply portion, and an air intake portion. The cartridge case includes a front face, a rear face opposite the front face, and a particular face connected to each of the front face and the rear face. The particular face has an opening formed therethrough. The ink supply portion is positioned at the front face and configured to supply ink. The air intake portion is configured to introduce air from the outside of the ink cartridge to the ink chamber. The air intake portion includes a valve, a valve seat, an urging, and an operation member. The cartridge accommodating portion has an accommodating chamber having a wall contacting an operation member.

Abstract: A protection device for an ink cartridge storage unit having an ink inducing member is provided with a supporting beam, a funnel member having a narrow conical end and a wide conical end, the narrow conical end being connected to a distal end of the supporting beam, and an elastic cap arranged inside the funnel member. The elastic cap seals the ink inducing member in an engaged state. In the course of removing the protection device from the ink cartridge storage unit, the protection device can be lifted in the upper direction. The upper rim of the wide conical end makes contact with the rear surface of the ink cartridge storage unit in due course. As the protection device is lifted further, the part of the elastic cap is constricted, and the upper rim of the wide conical end functions as the fulcrum for the leverage.

Abstract: The present invention prevents ink leaked from an atmospheric pressure introducing port of an ink cartridge from adhering to an outer surface of the ink cartridge. An ink filling unit includes a leaked ink leading member which receives ink leaked from an atmospheric pressure introducing port and leads the ink to an ink absorber assembled to the outside of a cartridge casing. Due to such a constitution, the ink leaked from the atmospheric pressure introducing port is led to the outside of the cartridge casing by the leaked ink leading member and the ink is absorbed by the ink absorber. Accordingly, it is possible to prevent the ink leaked from the atmospheric pressure introducing port from adhering to an outer surface of the ink cartridge.

Abstract: An ink-cartridge accommodation device including: a case which has a front opening and which accommodates an ink cartridge storing ink so as to permit the ink cartridge to be inserted into and withdrawn from the case through the front opening; and a connector which is disposed in a rear portion of the case so as to be opposed to the front opening, which is to be connected to an ink supply portion of the ink cartridge, and which includes (a) an ink introducing pipe portion projecting toward the front opening, (b) a guide rib portion provided around the ink introducing pipe portion so as to project toward the front opening for guiding the ink supply portion, and (c) a drain hole provided between the ink introducing pipe portion and the guide rib portion to drain the ink.

Abstract: A protector for an ink cartridge container including a containing case body, an ink inlet for a recording head, a cartridge containing part into which an ink cartridge is removably insertable, and a door body capable of opening and closing an opening opposed to the ink inlet with the cartridge containing part sandwiched therebetween, the protector includes a protective cap unit including: a main body; a supporting rod protruded toward the ink inlet from the main body; a guiding funnel formed at a front edge of the supporting rod; and an elastic cap provided at an inner diametrical portion of the guiding funnel and capable of coming into close contact with the ink inlet, wherein the main body, the guiding funnel and the elastic cap has a symmetrical shape with respect to an axis of the ink inlet.

Abstract: A protection device for an ink cartridge storage unit having an ink inducing member and a cover member is provided with a main body having an front face and a rear face, a sealing member connected to the front face, and a guiding protrusion arranged at the rear face. The cover member includes a pair of projections arranged at a location that corresponds to the guiding protrusion of the protection device. The width of the guiding protrusion is equal to or smaller than the width between the pair of projections, and the guiding protrusion is guided in between the pair of projections in the course of rotating the cover member to its closed state.

Abstract: The present invention realizes the miniaturization of an ink jet recording apparatus by improving the tube arrangement (pull-around) structure. A flow passage of ink supplied from an ink cartridge is turned by approximately 90° using an elbow member, and ink tubes which are connected to the elbow member are arranged (pulled around) to extend toward an image recording part through gaps defined between a plurality of atmospheric-pressure introducing sleeves along an outer wall of the cartridge casing. Due to such an arrangement, compared to a case in which the ink flow passage is turned by approximately 90° using the flexibility of the ink tubes, it is possible to turn the ink tubes with a remarkably large radius of curvature and, at the same time, it is possible to decrease a size of a gap defined between the outer wall of the cartridge casing and other equipment such as a waste ink box. Accordingly, the present invention can realize the further miniaturization of a multi-functional device.

Abstract: An assembly includes a frame having a first wall and a second wall, a support shaft, an elastic member, and an engaging member. The engaging member has a first engaging portion, the first wall has a recessed portion, the second wall has a second engaging portion, and the support shaft has an insertion portion. The first engaging portion and the second engaging portion are engaged with each other in a state in which the insertion portion is fitted into the recessed portion and the elastic member is compressed by the engaging member.

Abstract: An ink supply system includes an ink cartridge and an cartridge accommodating portion. An ink cartridge includes a cartridge case forming an ink chamber, an ink supply portion, and an air intake portion. The cartridge case includes a front face, a rear face opposite the front face, and a particular face connected to each of the front face and the rear face. The particular face has an opening formed therethrough. The ink supply portion is positioned at the front face and configured to supply ink. The air intake portion is configured to introduce air from the outside of the ink cartridge to the ink chamber. The air intake portion includes a valve, a valve seat, an urging, and an operation member. The cartridge accommodating portion has an accommodating chamber having a wall contacting an operation member.

Abstract: The present invention prevents ink leaked from an atmospheric pressure introducing port of an ink cartridge from adhering to an outer surface of the ink cartridge. An ink filling unit includes a leaked ink leading member which receives ink leaked from an atmospheric pressure introducing port and leads the ink to an ink absorber assembled to the outside of a cartridge casing. Due to such a constitution, the ink leaked from the atmospheric pressure introducing port is led to the outside of the cartridge casing by the leaked ink leading member and the ink is absorbed by the ink absorber. Accordingly, it is possible to prevent the ink leaked from the atmospheric pressure introducing port from adhering to an outer surface of the ink cartridge.

Abstract: A protection device for an ink cartridge storage unit having an ink inducing member is provided with a supporting beam, a funnel member having a narrow conical end and a wide conical end, the narrow conical end being connected to a distal end of the supporting beam, and an elastic cap arranged inside the funnel member. The elastic cap seals the ink inducing member in an engaged state. In the course of removing the protection device from the ink cartridge storage unit, the protection device can be lifted in the upper direction. The upper rim of the wide conical end makes contact with the rear surface of the ink cartridge storage unit in due course. As the protection device is lifted further, the part of the elastic cap is constricted, and the upper rim of the wide conical end functions as the fulcrum for the leverage.

Abstract: The present invention realizes the miniaturization of an ink jet recording apparatus by improving the tube arrangement (pull-around) structure. A flow passage of ink supplied from an ink cartridge is turned by approximately 90° using an elbow member, and ink tubes which are connected to the elbow member are arranged (pulled around) to extend toward an image recording part through gaps defined between a plurality of atmospheric-pressure introducing sleeves along an outer wall of the cartridge casing. Due to such an arrangement, compared to a case in which the ink flow passage is turned by approximately 90° using the flexibility of the ink tubes, it is possible to turn the ink tubes with a remarkably large radius of curvature and, at the same time, it is possible to decrease a size of a gap defined between the outer wall of the cartridge casing and other equipment such as a waste ink box. Accordingly, the present invention can realize the further miniaturization of a multi-functional device.