362results about How to "Ensure degrees of freedom" patented technology

A method of driving a MEMS mirror scanner having an electrostatic actuator, comprising a step of driving the electrostatic actuator according to an input signal in accordance with a driving waveform obtained by the following equation,

A structure for informing a state of the ink tank by a light emitting section such as LED, capable of displaying such information at a position easily visible by the user and favorably sending the emitted light both to the user and a light receiver section on the printer side without needing electric wiring which may disturb the user's visibility or manipulation. The light emitting section is separated from the display section and a light guiding section is provided between the both. A member for suitably limiting the emission of light is provided in the display section. Thereby, it is possible to dispose the display section at the best position without needing the electric wiring on the ink tank and obtain a preferable light volume suitable both for the improvement in user's visibility and the stability of the operation of the light receiving section.

The invention discloses a backpack-type walking power assisting device which comprises a supporting frame, wherein a back plate, straps, a backpack and a size-adjustable waistband are arranged on the supporting frame; a rotatable hip joint is mounted at the lower end of the supporting frame; a pair of lower limb exoskeletons are mounted on the hip joint; each lower limb exoskeleton comprises a thigh bone supporting mechanism, a leg bone supporting mechanism and a foot fixing mechanism; the leg bone supporting mechanism is elastically connected with the foot fixing mechanism; the thigh bone supporting mechanism comprises a thigh bone fixing plate and a first gravity balance mechanism; the leg bone supporting mechanism comprises a leg fixing plate and a second gravity balance mechanism; and the thigh bone fixing plate is elastically connected with the leg fixing plate. The backpack-type walking power assisting device has the advantages that the first gravity balance mechanism and the second gravity balance mechanism are used for balancing the lower limb gravity in a moving process of a human body in real time, thereby enabling a user to walk by following a movement trajectory of a human skeleton and reducing the physical output of the user; a pure mechanical structure design is adopted; the device cannot be influenced by an external environment; and the stability and reliability are high.

A folding type six-freedom-degree parallel connection posture adjusting platform mainly comprises an upper platform, a lower platform and six branches which are used for connecting the two platforms and are completely the same in structure. Each two branches form one group. The six branches are distributed evenly. Each branch comprises a main branch and a straight line driving branch. One end of a lower connecting rod of each main branch is connected with the lower platform through a universal hinge, and the other end of the lower connecting rod is connected with one end of an upper connecting rod through a rotating pair. The other end of the upper connecting rod is connected with the upper platform through a spherical hinge. A universal hinge in one straight line driving branch is fixed on the lower platform parallel to the outer side of the universal hinge of each main branch. The tail portion of an electric cylinder is connected with each universal hinge. A telescopic rod of the electric cylinder is connected with one portion of one upper connecting rod through a rotating pair. The folding type six-freedom-degree parallel connection posture adjusting platform is simple in structure, capable of being folded, large in bearing capacity due to the fact that a mechanism has large rigidity, and good in dynamic performance.

In the case where a difference between rotational speeds of right and left wheels detected by wheel speed sensors is less than a predetermined value, a right and left wheel power transmission control section distributes driving force between the right and left wheels so that a total value of the driving force of the right and left wheels does not exceed a limit value set up by a front and rear wheels power transmission control section. In the case where the difference between the rotational speeds of the right and left wheels is the predetermined value or more, the right and left wheel power transmission control section transmits the driving force up to a driving force upper limit for each wheel to the respective right and left rear wheels regardless of the total value of the driving force of the right and left rear wheels.

A fluid-filled vibration damping device comprising: a rubber elastic body connecting the first and second mounting members; a first pressure receiving chamber partially formed by the elastic body; a first equilibrium chamber partially formed by a first flexible rubber layer; a first orifice passage connecting the first pressure receiving and equilibrium chambers. The elastic body has a pair of pockets open in its outer circumferential surface and located on both sides in a diametric direction of the support shaft of the first mounting member, while being fluid-tightly covered by the second mounting member to form a pair of operating fluid chambers which are connected by a second orifice passage. The operating fluid chambers functions as a second receiving pressure chamber partially formed by the rubber elastic body and a second equilibrium chamber partially formed by a second flexible rubber layer.

A housing for an on-vehicle electronic apparatus includes a housing body, and a front panel assembly detachably attached to the front surface of the housing body. A recording medium insertion slit is provided in an upper portion of the front surface of the housing body. When a finger is put on the portion of an upper panel portion and the upper panel portion is pushed downwards, an upper member is moved downwards, and a lower member is swung to the front side about an axis according to the vertical movement of the upper member. When the upper panel portion reaches a lower position and a lower panel portion reaches a slant position, the spacing between an opening and an upper wall of the upper panel portion is enlarged, and the recording medium insertion slit is opened, resulting in the condition where a recording medium can be inserted or removed.

PURPOSE: To provide a battery cap unit which prevents degradation of accuracy of a protection unit by using a heat sensitive switch as one and can constitute a compact, fit for assembly, and low-cost battery by integrating and unitizing the protection unit with a battery cap body. CONSTITUTION: The unit is provided with a metal battery cap body 2 sealing a battery cell 1 used for a secondary battery and shielding the inside of the cell, and a heat sensitive switch 4 making changeover of switching at a given temperature, and it is so structured that the heat sensitive switch 4 is fitted to the battery cap body 2 and the heat sensitive switch 4 and the battery cap body 2 are integrated, to aim at unitization.

A wireless charging apparatus according to various embodiments of the present disclosure may include a wireless power transmitter that is included in a charging pad where an electronic device is placed, and may include a light source unit that provides light to a solar cell module included in the electronic device, wherein the light source unit may include a plurality of light sources that emit light outside the charging pad, and a plurality of sensors that are disposed between the light sources and close to the light sources and sense the electronic device.

To provide an exhaust device for enhancing the appearance quality, secure the degree of freedom in designing and enhance the cooling performance. An exhaust device in which a second exhaust muffler at a rear portion of an exhaust system extends rearwardly from an engine is disposed in a rear portion of a rear cowl wherein a rear end surface of the second exhaust muffler is covered with a resin-made muffler rear cover.

An antenna of a communication terminal is disposed on a side on which a bottom surface of a reflective plate, which is included in a display, is present. When the reflective plate is irradiated by an LED light source, the antenna cannot be seen from the side on which a display screen of the display is disposed. Accordingly, an antenna coil of the antenna does not need transparent electrodes and can be made of various materials each having a high conductivity. Therefore, the antenna has high sensitivity, low manufacturing cost, and very efficiently performs near field communication with an external device located on the display screen side of the display.

The invention provides a test bed for automobile doors. The test bed comprises a mechanical actuator mechanism, an electric control system and a sensing unit respectively coupled to the mechanical actuator and the electric control system. The mechanical actuator mechanism can be arranged inside an automobile and comprises an attachment mechanism, a transmission mechanism, a fixed bracket, a lifting platform and a servo motor adapted to drive the transmission mechanism. The attachment mechanism is attached to an automobile door. One end of the transmission mechanism is coupled to the attachment mechanism. The other end of the transmission mechanism is coupled to the servo motor. The sensing unit comprises an angle sensor, a force sensor and a speed detection unit fixed on the surface of the automobile door. According to the technical scheme of the invention, the test bed for automobile doors occupies a small space, and is easy in installation and strong in flexibility. During the test process, the loss of a to-be-tested automobile door and a testing mechanism is effectively reduced.

An MEMS accelerometer comprises a substrate, an acceleration sensitive chip and an integrated circuit, wherein the acceleration sensitive chip and the integrated circuit are arranged on the substrate, a temperature sensor is further arranged on the substrate and is adjacent to the acceleration sensitive chip, and the acceleration sensitive chip comprises a plurality of measurement bodies. Each measurement body comprises a mass block and a comb tooth structure, wherein the comb tooth structure comprises movable comb teeth extending from the mass block and fixed comb teeth, the movable comb teeth and the fixed comb teeth are arranged at intervals and form a difference detection capacitor, the comb tooth structure is divided into multiple groups, the multiple groups of comb teeth structures are divided into a first part and a second part, the variation direction of movable intervals of the comb tooth structure of the first part and the variation direction of movable intervals of the comb tooth structure of the second part are opposite, and one group of the comb tooth structure and one group of the comb tooth structure of the second part respectively output an electric signal. The MEMS accelerometer resolves the problems that a traditional MEMS accelerometer is large in temperature factor and large in temperature hysteresis.

A vehicle steering device (101) is provided with: a turning unit (3) which has a first motor (332) and a second motor (342) for turning that have an electric characteristic set in common with each other, and turns steered wheels (30a, 30b) according to the operation of a steering wheel (1); a first current sensor (332A) which detects a first current value flowing through the first motor (332); a second current sensor (342A) which detects a second current value flowing through the second motor (342); and an abnormality diagnosis unit (79a, 79b, 79c). The abnormality diagnosis unit (79a, 79b, 79c) diagnoses the turning unit (3) as being abnormal when the deviation between the first and second current values detected by the first and second current sensors (332A, 342A), respectively, exceeds a predetermined threshold. For example, when some kind of abnormality has occurred in the current detection unit (332A, 342A) for detecting the magnitude of a current flowing through the motor for turning (332, 342), the occurrence of the abnormality is rapidly diagnosed.

A hypocycloid reducer 70 for reducing rotation of a flat motor 60 to output the speed-reduced rotation to a drum is provided between the drum and the flat motor 60, a rotor shalt member 65 which is rotated with the same rotation number as the flat motor 60 is axially aligned with the drum is provided on the same side as the flat motor 60. An output rotation body 74 for outputting the speed-reduced rotation is axially aligned with the drum and provided on the same side as the drum. Since the rotor shaft member 65 and the output rotation body 74 are axially aligned with the drum, turning force can be transmitted bi-directionally between the rotor shaft member 65 and the output rotation body 74. Therefore, it is possible to eliminate an electromagnetic clutch to reduce the driving apparatus in size and weight, and since wires and control logic of the electromagnetic clutch are not needed for the driving apparatus, the driving apparatus can be reduced in production cost.

The external storage device unit of the present invention comprises a cover 30 for blocking an opening 3 of a main body casing 2 for storing an external storage device 10. Connectors 40a, 40b for a storage device side connected to external connection connectors 17a, 17b of the external storage device 10,and a connector 41 for a main body side connected to a main body connector 48 for a cover side arranged within the main body casing 2 are arranged in a cover main body 31. The connectors 40a, 40b for a storage device side and the connector 41 for a main body side are electrically connected to each other, and signals, etc. are transmitted and received between the external storage device 10 and a game machine main body 1 through the cover 30.