A heat dissipation device of a light engine for a projector has a housing, a fan module, a light engine and a heat sink. The light engine is positioned in the housing and connected to the heat sink. The heat sink is positioned out of the housing. The housing has a fan-enclosed flow channel attached on an outer surface of the housing. The fan module is guided by the fan-enclosed flow channel to the heat sink to enhance heat dissipation efficiency of the light engine for the projector.

A terahertz light generation device 1 comprises a resonator structure 12 for intensifying incident light and outputting the intensified light and laser oscillation units 10, 11 for feeding the incident light into the resonator structure 12. The incident light comprises first and second incident light components having polarization states different from each other and frequencies different from each other. The laser oscillation units 10, 11 feed the resonator structure 12 with the first and second incident light components at an angle inclined from a principal surface in the resonator structure 12. The resonator structure 12 outputs light having a frequency corresponding to the difference between the respective frequencies of the first and second incident light components.

An EUV light generation system includes a driver laser comprising a master oscillator such as a semiconductor laser, a spatial filter, gas slab amplification devices, relay optical systems, and high-speed axial-flow amplifiers. The slab amplification devices include beam adjusting optical units disposed, respectively, at input and output sides of the slab amplifiers SA to convert the beam profile and/or polarization direction and/or an elongated direction of the beam profile with the slab amplifiers is parallel to a free space axis AF of the slab waveguides, i.e. parallel to the discharge electrodes.

A method for fabricating a group-III nitride semiconductor laser device stably supplies laser cavity mirrors having a low lasing threshold current through the use of a semi-polar plane. A blade 5g is forced down through a first region ER1 to keep the first region ER1 squeezed between a support member H2 and a movable member H1 together with a part of a protective sheet TF in contact with the first region ER1 while the tension generated in the area of the protective sheet TF in contact with the first region ER1 with the movable member H1 increases until the semi-polar principal surface SF at an end face EG1 of the first region ER1 tilts by a deflection angle THETA from the semi-polar principal surface SF of a second region ER2, and a force is thereby generated in the first region ER1 in a direction opposite to the direction of travel of the blade 5g toward the first region ER1. For example, an angle ALPHA is within the range of 71 degrees to 79 degrees, and the deflection angle THETA is within the range of 11 to 19.

Tensile strained germanium is provided that can be sufficiently strained to provide a nearly direct band gap material or a direct band gap material. Compressively stressed or tensile stressed stressor materials in contact with germanium regions induce uniaxial or biaxial tensile strain in the germanium regions. Stressor materials may include silicon nitride or silicon germanium. The resulting strained germanium structure can be used to emit or detect photons including, for example, generating photons within a resonant cavity to provide a laser.

A communication module according to the present invention includes a substrate, a laser element and a light receiving element provided on a front surface of the substrate and separating from each other, a transparent resin package collectively sealing the laser element and the light receiving element, and a diffusion unit provided to be opposed to a light emitting surface of the laser element at a prescribed distance for diffusing a laser beam emitted by the laser element, while the distance T between the laser element and the light receiving element satisfies the following formula (1): T≧t1·tan θ+(t1+t2)·tan θ' . . . (1) (in the formula (1), t1 represents the distance between the light emitting surface of the laser element and the diffusion unit, θ represents the maximum angle of emission of the laser element, t2 represents the difference between the height from the front surface of the substrate up to the light emitting surface and the height up to alight receiving surface of the light receiving element, and θ' represents the maximum diffusion angle of the diffusion unit.)

A fiber coupled semiconductor device and a method of manufacturing of such a device are disclosed. The method provides an improved stability of optical coupling during assembly of the device, whereby a higher optical power levels and higher overall efficiency of the fiber coupled device can be achieved. The improvement is achieved by attaching the optical fiber to a vertical mounting surface of a fiber mount. The platform holding the semiconductor chip and the optical fiber can be mounted onto a spacer mounted on a base. The spacer has an area smaller than the area of the platform, for mechanical decoupling of thermally induced deformation of the base from a deformation of the platform of the semiconductor device. Optionally, attaching the fiber mount to a submount of the semiconductor chip further improves thermal stability of the packaged device.

Various embodiments of a photonic device and fabrication method thereof are provided. In one aspect, a device includes a substrate, a current confinement layer disposed on the substrate, an absorption layer disposed in the current confinement layer, and an electrical contact layer disposed on the absorption layer. The current confinement layer is doped in a pattern and configured to reduce dark current in the device. The photonic device may be a photodiode or a laser.

A device including one or more layers with lateral regions configured to facilitate the transmission of radiation through the layer and lateral regions configured to facilitate current flow through the layer is provided. The layer can comprise a short period superlattice, which includes barriers alternating with wells. In this case, the barriers can include both transparent regions, which are configured to reduce an amount of radiation that is absorbed in the layer, and higher conductive regions, which are configured to keep the voltage drop across the layer within a desired range.

A paper-sheet handling device relating to the present invention has a configuration such that a binder paper alignment unit for temporarily reserving a plurality of paper-sheets perforated at predetermined positions, a movement mechanism for binding the bundle of paper-sheets thus aligned owing to the above by means of a binding component, and a binder cassette for storing the binding components for being transferred thereto, wherein the movement mechanism is arranged on the downstream side of the binder paper alignment unit and the binder cassette and also, the binder paper alignment unit and the binder cassette are arranges radially on the upstream side to form an approximately V-shape by making the aforesaid movement mechanism to be a reference. It is possible depending on this configuration to concentrate the necessary constructional elements at the periphery of the movement mechanism, so that the arrangement of the component members in the horizontal direction of the device can be restricted and the aforesaid device can be miniaturized.

A notch forming device, comprises a notch forming section to form a notch on an edge of a sheet constituting a sheet bundle to be outputted in accordance with an execution of a job; a shifting section to shift a position of a notch to be formed on a sheet by the notch forming section; and a control section to control the shifting section. When plural sheet bundles are outputted in accordance with the execution of the job, the control section controls the shifting section to make a position of a notch on a leading sheet of each sheet bundle at the same position.

A device is provided to shape a spine of a book casing positioned horizontally spread out flat and oriented to be distributed evenly over a spine of a book block. Two fold-shaping rails are arranged extending in a direction parallel to one another. A movable, shaping tool is arranged to face the inside of the book casing spine to shape a web on the book casing spine with the aid of the two fold-shaping rails. The shaping tool includes two spaced-apart support bars that extend parallel to the fold-shaping rails and are arranged to be adjustable so that together they adjust the web width of the book casing spine in a direction transverse to the direction of extension of the fold-shaping rails.

In an embodiment, a booklet conveying device includes: a pair of conveying units; a positioning unit; a pressing unit; and a conveying-force changing unit. The pair of conveying units convey a booklet made of a stack of folded sheets, and change a distance therebetween. The positioning unit positions the booklet by making a leading-end portion of the booklet abut thereto. The pressing unit presses the booklet positioned by the positioning unit onto one of the conveying units in order to fix. The conveying-force changing unit changes the conveying force exerted by the conveying units.

In a cover feeding device (1) for feeding covers (13, 13.1, 13.2, 13.3) separated from a magazine (3, 3') to book blocks (14.1, 14.2, 14.3) that are transported while being clamped in book block grippers (2), it is proposed that the magazine (3, 3') features at least a first lateral stop (6.1) that is arranged such that it can be fixed transverse to the withdrawal direction (12) and against which different covers (13, 13.1, 13.2, 13.3) intended, in particular, for book blocks (14.1, 14.2, 14.3) of different thickness can be jointly placed, and that at least the magazine (3, 3') can be adjusted transverse to the withdrawal direction (12) such that an edge (17) of the spine region of the respective cover to be separated is withdrawn essentially in alignment with the rigid gripping jaw (2 a).

In a machine (1) for manufacturing perfect-bound brochures (2) that includes a book block conveying device (10) with an endless conveying means (11), a plurality of clamps (14) that are arranged on the conveying means at a fixed pitch spacing (T) and serve for clamping book blocks (3, 3.1 . . . 3.8), and of at least one processing station (25, 18, 19, 20, 21, 22, 30) that can be adjusted in a motor-driven fashion, the cycle time (t0) referred to the conveyance of the clamps (14) by the pitch spacing (T) defined in the at least one processing station is divided into an adjusting segment (tV1, tV2) for resetting and/or adjusting the at least one processing station (25, 18, 19, 20, 21, 22, 30) in accordance with changing printed product characteristics and a processing segment (tB1, tB2) for processing the book blocks (3, 3.1 . . . 3.8) and/or covers (4, 4.1 . . . 4.4). The resetting of the at least one processing station to another printed product can take place within one work cycle (t0) of the respective processing station while the conveyance of the book blocks (3, 3.1 . . . 3.8) continues.

Method and device for manufacturing adhesively bound printed products composed of a book block and a cover, in which the book block is conducted past processing stations of the adhesive binding device for processing and applying glue to its back. A cover is supplied to the back to which glue has been applied in a synchronously timed controlled manner. After merging of the cover with the book block, a measuring procedure for measuring a mutual actual position of cover relative to book block. Subsequently, this actual position is compared to a predetermined desired position, and, in the case of deviations, a correction value is determined and stored. Prior to the renewed occurrence of the pairing of drive member and clamp, an appropriate change of the mutual positions of clamp and drive member is carried out.

Disclosed is an image forming system including an image forming device which includes a paper feeding tray, a print section which performs printing to papers fed from the paper feeding tray and a control section which controls so as to feed the printed papers to a post-processing device as a booklet main body to be book-bound, and the post-processing device which carries out ring-binding processing to the fed papers and book-binds a booklet, and the control section controls so as to feed a front cover paper, a back cover paper, papers for binding of the booklet to a ring-binding process section of the post-processing device along with the booklet main body, and a paper feeding order is in an order of the back cover paper, the papers for binding, the front cover paper and the booklet main body.

It, as shown in FIG. 11, is provided with a feed roller 31 that is movable, rotates the spiral coil 11 passing through punched holes 3a of the bundle of paper-sheets 3, and guides the spiral coil 11 to feed it toward a coil advance direction, a screw guide 49 at a movable and adjustable side that guides and conducts a forward end of the spiral coil 11 fed by the feed roller 31 toward the coil advance direction into the punched holes 3a thereof, and a control part that receives diameter-of-coil-setting information for setting a diameter of a coil of the spiral coil 11 and controls positions of the feed roller 31 and the screw guide 49 based on the diameter-of-coil-setting information. Such a configuration enables the feed roller 31 and the screw guide 49 to move to the guided positions of the spiral coil 11 indicated by the diameter-of-coil-setting information. Accordingly, it is possible to pass the spiral coils having the different diameters thereof through the holes of the bundle of paper-sheets stably.

Device for joining book block and book cover includes conveyor device, embodied to lift a book block from a lower position into an upper position, and an adhesive application station applying adhesive to the outsides of the book block. Conveyor device and the adhesive application station are arranged so adhesive is applied to the outsides of the book block as it is conveyed by the conveyor device. A removal station is arranged below the adhesive application station and the conveyor device is structured to reverse a direction of movement and to lift and lower the book block and cover in a same vertical plane between the lower position and the upper position. Adhesive application station deactivates adhesive dispensing during the downward movement of the book block with cover.

In a device for cutting to length and feeding spine strips (3) for a case maker (1), a center strip conveying device (30) is provided that advances the spine strip material (5, 6) by the spine width (BS) transverse to the board feed direction (23) in a cyclic fashion. The spine width (BS) can be changed from work cycle to work cycle without accumulating additional waste. This can be realized because the previously required width sizing on the material web is eliminated.

There is provided a decoloring device including a decoloring unit, a first sheet conveying unit, a first sheet feed unit, a thickness detecting unit, a decolorability determining unit, and a second sheet feed unit. The first sheet conveying unit conveys the sheet to the decoloring unit. The first sheet feed unit feeds the sheet to the first sheet conveying unit. The decolorability determining unit determines whether or not the sheet which is subject to thickness detecting is decolorable by the decoloring unit based on a detection result in the thickness detecting unit. A second sheet feed unit is disposed at a downstream side in relation to the thickness detecting unit and at an upstream side in relation to the decoloring unit in a sheet conveying path by the first sheet conveying unit and feeds the sheet to the first sheet conveying unit.

A method and a device for pressing a book block over the rounded back of a book block having a longitudinal axis extending in the center and along the back. The book block is clamped between two clamping jaws of a clamping device, in a region adjacent to the back of the book block, parallel to the longitudinal axis of the back. A pressing device presses a pressing member against the back, wherein the pressing member is placed approximately in the center of the back onto the book block back. At least a section of the pressing member is then moved across the back. Once the pressing member, which is oriented parallel to the longitudinal axis of the back, is placed onto the back it then moves along at least one continuously preselected movement path over the back.

A fastener apparatus is disclosed that features projecting locking members that extend and retract when a central drive shaft is rotated. The exterior of the connector has a body that is partially threaded to receive a nut so that two structures (e.g. flanges, panels, plates, beams, etc.) can be pulled together by tightening the bolt when the locking members are in the extended position. In one embodiment, the shaft can be an eyebolt.

An assembly comprising at least two non-metal components which are fixed to each other using at least one fixing system. The fixing system includes a fixing device with a fixing element which is provided with a head and a rod, and a crimping ring which is in contact with one of the components. A protection device is a part of the fixing system which delimits a cavity for confining gas around a portion of the device comprising the crimping ring. In order to improve the repeatability of the operation for positioning the protection device, a guiding device is provided which includes an assembly element on the portion of the fixing device, and an element for guiding the protection device.

A generator stator core through-bolt tensioning device that automatically tightens the nut on the through-bolts that hold together and compress laminate plates of the stator core in a high voltage generator. A controller receives a signal from a measuring device, such as a fiber Bragg grating that measures the strain on the bolt, and based on that signal determines whether the nut needs to be tightened. If the controller determines that tightening is necessary, it will cause the tensioning device to automatically tighten the nut while the generator is in service, and use the measuring device to provide feedback of the tensioning of the through-bolt to know when to stop the device from tightening the nut.

Safety apparatuses for objects having at least one nut are disclosed. Contemplated apparatuses comprise a base, one or more nut caps, and one or more electronic sensors configured to acquire data related to a corresponding nut, wheel or tire. In some embodiments, a physical nut rotation indicator that can readily be observed by an operator is included, and a retention wall disposed on the base can operate in conjunction with the physical nut rotation indicator to block a rotation of a nut. Apparatuses are preferably configured to remain stable in harsher environments.

In a driving circuit, one output circuit has a scanning signal line, a first transistor which controls electrical connection between the scanning signal line and a clock signal line which has a gate connected to a first node, the first node which is at an active potential in a first time period including a time period during which the active potential is output to the scanning signal line, a second transistor which electrically connects the first node and an inactive signal line which has a potential to open the transistor in a second time period other than the first time period, and the second transistor has a gate connected to a second node, wherein the second node has two kinds of timings to be charged for retaining the active potential.

A display panel drive circuit includes a shift register constructed of unit circuits connected in stages. The unit circuits generate signal line selection signals, respectively, which signal line selection signals are made active for a respective certain period of time to form a respective pulse, and the pulses are outputted successively from respective unit circuits in order of ordinal number starting from a first stage until an end stage. In at least one embodiment, each of the unit circuits receive (i) clock signals generated based on a sync signal received from outside of the display panel drive circuit, (ii) a start pulse signal generated based on the sync signal, or a signal line selection signal generated in a stage different from its own stage, and (iii) a clear signal. The clear signal is made active in a case where anomalousness is included in the sync signal, and no pulse is outputted from the shift register until a subsequent vertical scanning period starts. This configuration achieves a display panel drive circuit which prevents display disorder or holds down increase in load given to a power source, each of which occurs in a case where anomalousness is included in the sync signal.

A scan driving apparatus includes a plurality of sequentially arranged scan driving blocks, each including: a first node configured to receive a first clock signal; a second node configured to receive an input signal according to a second clock signal input; a first transistor having a gate electrode coupled to the first node, a first electrode configured to receive a power source voltage, and a second electrode coupled to an output terminal; and a second transistor having a gate electrode coupled to the second node, a first electrode for receiving a third clock signal, and a second electrode coupled to the output terminal. Each scan driving block is configured to receive the first, second, and third clock signals as a corresponding three clock signals among four clock signals sequentially shifted by a first period, and to output the third clock signal by being synchronized with the input signal.

Methods, systems and devices are provided for displaying monitored activity data in substantial real-time on a screen of a computing device. One example method includes capturing motion data associated with activity of a user via an activity tracking device. The motion data is quantified into a plurality of metrics associated with the activity of the user. The method includes connecting the activity tracking device with a computing device over a wireless data connection, and sending motion data from the activity tracking device to the computing device for display of one or more of the plurality of metrics on a graphical user interface of the computing device. At least one of the plurality of metrics displayed on the graphical user interface is shown to change in substantial real-time based on the motion data.

A shift register includes a plurality of stages of unit circuits each including a flip-flop. Each of the unit circuits generates, by obtaining a sync signal in accordance with an output from the flip-flop, an output signal. The flip-flop includes a first switch and a second switch and a latch circuit for latching a signal supplied thereto and outputting the signal as the output from the flip-flop. A first shift direction signal is supplied to the latch circuit via the first switch, and the second shift direction signal is supplied to the latch circuit via the second switch. In each unit circuit other than those of the first and last stages, an output signal from a previous stage is supplied to a control terminal of the first switch, and an output signal from a subsequent stage is supplied to a control terminal of the second switch.

Methods, devices and system are provided. One method includes capturing activity data associated with activity of a user via a device. The activity data is captured over time, and the activity data is quantifiable by a plurality of metrics. The method includes storing the activity data in storage of the device and, from time to time, connecting the device with a computing device over a wireless communication link. The method defines using a first transfer rate for transferring activity data captured and stored over a period of time. The first transfer rate is used following startup of an activity tracking application on the computing device The method also defines using a second transfer rate for transferring activity data from the device to the computing device for display of the activity data in substantial-real time on the computing device.

The present invention provides a shift register unit, a shift register circuit, an array substrate and a display device, and relates to the area of display manufacturing. The time of the bias working on the de-noising transistor can be reduced without affecting the circuit stability, so that the operational lifespan of the device can be extended. A shift register comprises: a capacitor, a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a de-noising control model. The present invention is used for manufacturing displays.

A shift register includes cascade-connected stages, each of which includes a data latch and an output stage. In at least one embodiment, the latch has a single data input which, in use, receives a date signal from a preceding or succeeding stage. The output stage includes a first switch, which passes a clock signal to the stage output when the output stage is activated by the latch. The output stage also comprises a second switch, which passes the lower supply voltage to the stage output when the output stage is inactive.

A display device including various portions, circuits and other arrangements for outputting various pulses and triggers, for controlling forward shift and backward shift operations.

A display device includes a first-stage output circuit adapted to perform output to a first-stage output signal line as an endmost output signal line out of a plurality of output signal lines disposed in parallel to each other, and the first-stage output circuit includes a start signal line to which a start signal for applying a conducting potential sequentially to the plurality of output signal lines is applied, a first clock signal line to which a first clock signal is applied, a second clock signal line to which a second clock signal is applied, a first transistor having a source to which the first-stage output signal line is connected, and a drain to which the first clock signal line is connected, and a second transistor having a gate to which the start signal line is connected.

To suppress malfunctions in a shift register circuit. A shift register having a plurality of flip-flop circuits is provided. The flip-flop circuit includes a transistor 11, a transistor 12, a transistor 13, a transistor 14, and a transistor 15. When the transistor 13 or the transistor 14 is turned on in a non-selection period, the potential of a node A is set, so that the node A is prevented from entering into a floating state.

A stage constituent circuit of a display device drive circuit includes a first-node to a third-node, a thin-film transistor that changes a potential of a scanning signal toward a VDD potential when a potential of the first-node is in a HIGH level, a thin-film transistor that changes a potential of a different stage control signal toward a potential of a clock when a potential of the second-node is in the HIGH level, a capacitor between the first-node and the second-node, and a capacitor between the second-node and the third-node. The potential of the first-node is raised on the basis of a different stage control signal output from the stage constituent circuit in the different stage, and then the potential of the second-node and a potential of the third-node are sequentially raised. Herein, an amplitude of the clock is set to be smaller than an amplitude of the scanning signal.

A semiconductor device that includes transistors having the same polarity consumes less power and can prevent a decrease in amplitude of a potential output. The semiconductor device includes a first wiring having a first potential, a second wiring having a second potential, a third wiring having a third potential, a first transistor and a second transistor having the same polarity, and a plurality of third transistors for selecting supply of the first potential to gates of the first transistor and the second transistor or supply of the third potential to the gates of the first transistor and the second transistor and for selecting whether to supply one potential to drain terminals of the first transistor and the second transistor. A source terminal of the first transistor is connected to the second wiring, and a source terminal of the second transistor is connected to the third wiring.

The present invention relates to a liquid crystal display (LCD) device. More particularly, the present invention relates to an LCD device including a thin film transistor (TFT) compensation circuit in an LCD device which implements a driving circuit by using an oxide TFT, the LCD device capable of compensating for degraded characteristics of a TFT due to threshold voltage shift. As the compensation circuit including a dummy TFT is formed on a non-active area of the LC panel, the degree of threshold voltage shift of the DT due to a DC voltage can be sensed. Based on the sensed result, a threshold voltage of a second TFT can be compensated. This can reduce lowering of a device characteristic.

A shift register unit comprises: a first transistor, a pulling-up close unit, a pulling-up start unit, a first pulling-up unit, a second pulling-up unit, a trigger unit, and an output unit. A shift register circuit, an array substrate and a display device are also provided. The shift register unit, the shift register circuit, the array substrate and the display device can reduce drift of a gate threshold voltage of a gate line driving transistor and improve operation stability of devices.

A semiconductor device which shifts a low-level signal is provided. In an example, a first transistor including a first terminal electrically connected to a first wiring and a second terminal electrically connected to a second wiring, a second transistor including a first terminal electrically connected to a third wiring and a second terminal electrically connected to the second wiring, a third transistor including a first terminal electrically connected to a fourth wiring and a second terminal electrically connected to a gate of the second transistor, a fourth transistor including a first terminal electrically connected to a fifth wiring, a second terminal electrically connected to a gate of the third transistor, and a gate electrically connected to a sixth wiring, and a first switch including a first terminal electrically connected to the third wiring and a second terminal electrically connected to a gate of the first transistor are included.

To suppress malfunctions in a shift register circuit. A shift register having a plurality of flip-flop circuits is provided. The flip-flop circuit includes a transistor 11, a transistor 12, a transistor 13, a transistor 14, and a transistor 15. When the transistor 13 or the transistor 14 is turned on in a non-selection period, the potential of a node A is set, so that the node A is prevented from entering into a floating state.

A counter configured to perform counting at both edges of an input clock to output an additional value or a subtraction value for a previous count value and a next count value includes a first latch circuit that latches the input clock, a second latch circuit that latches an output from the first latch circuit, a holding section that holds data of the 0th bit of a count value, and a correction section that performs count correction on data of the first and subsequent bits of the count value on the basis of an output of the second latch circuit.

An LCD and a bidirectional shift register device thereof are provided. The bidirectional shift register device of the invention is disposed on the substrate of the panel and includes multi-stages shift registers in series connection. Each stage shift register includes a pre-charging unit, a pull-up unit and a pull-down unit, in which the pre-charging unit receives a first preset clock signal and the output from a (i−1)th stage shift register or a (i+1)th stage shift register so as to thereby output a charging signal. The pull-up unit receives the charging signal and a second preset clock signal so as to thereby output a scan signal. The pull-down unit receives the second preset clock signal, a third preset clock signal and the output from the (i+2)th stage shift register or the (i−2)th stage shift register so as to decide whether or not pulling down the scan signal to a reference level.

A side rail of a floor assembly of a trailer, such as a flatbed trailer, including a channel formed in a top wall of the side rail and an aperture formed in the top wall of the side rail at a location spaced-apart from the channel. The channel extends along a length of the side rail and is configured to receive a first cargo restraint device therein. The aperture is configured to receive a second cargo restraint device therein.

A cargo securing device for use in carrying cargo in pickup trucks and the like. The cargo securing device is formed of a flexible panel having straps on opposed sides which extend across the panel to attachment devices such as rings. The flexible panel may include apertures with removable covers to permit the ends of long devices to extend through and to be held from movement sideways.

A box stop device includes a base member and a raised member attached to the base member. The base member has a top surface and a bottom surface. The top surface may be flat. The bottom surface may be adapted to attach to a desired surface. The raised member may be attached to the base member and may extend approximately vertically from the top surface. The raised member may include a first side and a second side. The first side and the second side may be attached together at an angle of approximately 90 degrees.

A module in the form of a pallet or a closed container includes a grouping together of the electrical devices in an avionics bay, in which the electrical devices are interconnected and attached so as to facilitate the mounting and thus limit the time it takes to mount the electrical devices in the avionics bay.

A seat fixing device for fixing an air passenger seat to a floor of an aircraft includes at least one fastening rail (10) in the form or a hollow profile, which is provided with a longitudinal channel (14) delimiting the free flanks (16) of the profile on the top part thereof (12) oriented to the seat. The channel includes through openings (18) located in a predetermined modular dimension, which enlarge the free input section and are used for inserting at least one snap-locking part (24) of a locking body (26). The looking body (26) is movable to a clamping position with the profile (16) of the hollow profile (14) by the relative displacement of each snap-locking part (24) in a perpendicular direction with respect to the longitudinal axis (28) of the fastening rail (10). The fixing device provides an eccentric drive (30) of the locking body (26) for carrying out relative displacement, which reduces assembly costs.