A thread cutting mechanism is mounted on a sewing machine which includes a sewing platform. The thread cutting mechanism includes a driver assembly and a thread cutting assembly. The driver assembly includes a stepping motor, a swing lever pivotally connected to the stepping motor, and a pushing rod connected to the stepping motor and swing lever and driven jointly with the swing lever by the stepping motor to perform a back-and-forth process. The thread cutting mechanism is disposed on the sewing platform, and includes a thread hooking blade connected to and driven by the swing lever to move back-and-forth along a thread hooking path and to hook back a sewing thread, and a thread cutting blade disposed on the thread hooking path and for cutting the sewing thread when the thread hooking blade hooks back the sewing thread.

A lower thread ending region detection apparatus prevents problems associated with false stitchings occurring from inability to detect lower thread's exhaustion during sewing operation. The lower thread ending region detection apparatus comprises: light control unit, which contacts a part of lower thread wound on a thread bobbin and activates or inactivates at least one of the functions of emitting light, reflecting light, passing light and blocking light, due to the effect of the physical movement force generated depending on whether the lower thread of the ending region is unwound; light receiving unit, which receives the light transferred out by the light control unit and outputs a detection signal; and control and notification unit, which analyzes the detection signal output from the light receiving unit to determine whether the lower thread has reached the ending region and outputs the result to the user.

A sewing machine includes a frame portion, a lid member, and a control portion. The lid member is attached to the frame portion such that the lid member can open and close. The control portion is configured to control a movement speed of the lid member depending on an aperture of the lid member.

The memory stores computer-readable instructions causing the sewing machine to perform operations including: extracting feature points of a design based on a captured image; extracting feature points of a unit design; generating feature points of a symmetrical design; cross-checking the extracted feature points of the design and the generated feature points of the symmetrical design; determining an arrangement of an embroidery pattern with respect to the symmetrical design; and causing a sewing portion to sew the embroidery pattern.

Disclosed is a two-needle sewing machine that improves strength in a convex curve part by bringing a pair of stitches close together when sewing an item. A two-needle sewing machine includes a bed part; a column part; an arm part; a needle shaft that is disposed on the leading part of the arm part; two sewing needles that are attached to the needle shaft; two horizontal hooks that catch the respective needle thread loops of the two sewing needles; and a conveyor member that conveys a material to be sewn in a direction approximately orthogonal to the bed part. On the two-needle sewing machine, the sewing needle, which is positioned in a location distant from the column part, is disposed closer to the conveyance side of the material to be sewn than the sewing needle that is positioned in a location closer to the column part.

A sewing machine may comprise a needle bar driving mechanism, a cutting needle rotation mechanism, and an embroidery frame movement mechanism configured to move an embroidery frame comprising a protruding portion. A cam member may be fixed to the needle bar and comprise a plurality of cams. A processor of the sewing machine may set a height of the needle bar to a specific position from a plurality of positions. Each of the plurality of positions may represent that each of the plurality of cams is able to contact with the protruding portion. The processor may instruct the needle bar driving mechanism to move the needle bar to the specific position and instruct the embroidery frame movement mechanism to move the embroidery frame to a position where the protruding portion is able to contact with one of the plurality of cams.

A sewing direction control apparatus for sewing machine, comprising: a base plate, a circular ring-shaped transmission element dispose on the base plate and a driving element with a driving unit. During sewing, the driving unit drives the transmission element, rotating a sewing product placed at the center of the transmission element with the driving element, thereby controlling the sewing direction of the sewing product, and thus improving the sewing accuracy. The direction control apparatus has low cost, and is suitable for various types of automatic sewing machines.

Thread tensioner for a sewing machine. In one example embodiment, a thread tensioner for a sewing machine includes a first disk, a second disk, a spring, a knob, and a sensor. The second disk is positioned next to the first disk. The spring is configured to apply tension to a thread positioned between the first disk and the second disk by exerting a force against the second disk. The spring defines a length between a first end and a second end. The knob is configured, when rotated in one direction, to travel along a threaded shaft toward the spring and thereby cause the length of the spring to shorten. The knob is configured, when rotated in another direction, to travel along the threaded shaft away from the spring and thereby allow the length of the spring to lengthen. The sensor is configured to track a current length of the spring.

Method for creating a crystal/rhinestone template utilizing a sewing/embroidery machine to perforate a medium in a desired pattern. In the case of a multiple-needle sewing/embroidery machine, the machine's needle is replaced by a perforator blade and perforator blade holder which are attached to machine's needle bar. Machine's needle plate is replaced by perforator plate and waste holder. With a single-needle sewing/embroidery machine, machine's needle is replaced by a pressing tool attached to the machine's needle bar. A contact point, a spring, and an arm are attached to machine's presser foot. Machine's needle plate is replaced by perforator plate. A template medium is placed on a work surface of machine. Machine is operated by software that reads a user-specified pattern/motif outline for filling stones in vector form, using innate rules to move machine frame and control hole placement.

A carpet and method for producing same that comprises an enhanced seam suitable for separation of an installation portion of the carpet and sacrificial edge portions of the produced carpet.

To provide a sewing machine that can control tension on a needle thread and tension on a bobbin thread on a per-stitch basis; that enables even heads of a multi-head embroidery sewing machine to form an identical embroidery; and that enables even a plurality of sewing machines to form identical embroidery. A memory device stores for each stitch of embroidery data a needle thread control torque value and a bobbin thread control torque value. In a needle thread torque control zone, an upstream grip section main body is closed, and a downstream grip section main body is opened. A needle thread motor is subjected to torque control in accordance with the needle thread control torque value. In the meantime, in a position control zone, the upstream grip section body is opened, and the downstream grip section body is closed, thereby subjecting the needle thread motor to position control.

A tension release device for compensating mechanical error of a tension device for a sewing machine includes a rotary arm, a tension release shaft, a guiding member, an actuating member, and a micro-adjustment member, the rotary arm is located at one end of the tension release shaft which is inserted through the base, the tension release shaft is coupled to the guiding member, the guiding member is provided with an arc-shaped guiding flange which includes a first end and a second end higher than the first end. On the actuating member is provided a push portion which protrudes toward and is pushed by the guiding flange of the guiding member, a micro-adjustment hole is formed at one end of the actuating member or at the one end of the control shaft, and the micro-adjustment member is screwed in the micro-adjustment hole and extends toward the tension release shaft.

A direct drive cloth feeding mechanism of a sewing machine includes a cloth feeding structure, a vertical driving structure and a direction adjustment structure. The cloth feeding structure includes a swing shaft and a cloth feeding teeth member. The vertical driving structure includes an eccentric shaft connected to the cloth feeding teeth member, and an eccentric cam disposed on the eccentric shaft. The direction adjustment structure includes a stepping motor, and a rotating shaft driven by the stepping motor to rotate and switch between a first position and a second position. When the stepping motor directly drives the rotating shaft to the first position, the cloth feeding teeth member performs a forward feeding process. When the stepping motor directly drives the rotating shaft to the second position, the cloth feeding teeth member performs a reverse feeding process.

A sewing machine includes a needle bar, a presser bar, a threading device, a processor, and a memory. The needle bar is configured such that a sewing needle is attached thereto. The presser bar is configured such that an accessory device is mounted thereon. The threading device is configured to perform a threading operation in which an upper thread is passed through an eye of the sewing needle attached to the needle bar. The memory is configured to store computer-readable instructions. The computer-readable instructions cause the processor to perform processes that include determining whether a mounted device is a specific accessory device and causing the threading device to perform the threading operation in a case where it is determined that the mounted device is the specific accessory device and a specific condition is satisfied. The mounted device is an accessory device mounted on the presser bar.

An embroidery data processor includes a color information acquiring unit configured to acquire color information of a workpiece cloth on which an embroidery pattern composed of a plurality of color-based pattern portions is sewn, a color storage unit configured to store data of defined colors, an assignment unit configured to randomly extract colors from the colors stored by the color storage unit for every color-based pattern portion, the extracted colors being used as thread color data specifying colors of the color-based pattern portions respectively, the assignment unit assigning the extracted colors to the respective color-based pattern portions, and a setting unit configured to set a predetermined extraction range containing a similar color or a contrast color based on the color information acquired by the acquiring unit. The assignment unit is configured to extract the color stored by the color storage unit in the set extraction range.

A sewing apparatus and method therefor includes a drive mechanism, a thread feed mechanism, and a needle engagement mechanism for engaging the thread feed mechanism. The drive mechanism comprises a drive motor configured to transmit power from the drive motor to the needle engagement mechanism such that it drives a needle within a cartridge without moving the entire cartridge. A method and sewing apparatus includes a plurality of thread feed mechanisms and a needle engagement mechanism for selecting and engaging each of the thread feed mechanisms.

A punching device including a punching die (5a) that can be connected to the needle bar and a punching matrix (5b) that can be fastened to a needle plate (7) of a sewing machine. The punching matrix (5b) is embodied as a lid of a clippings container (9). The planar object (23) to be processed is displaced via the tambour frame in a punching plane L2, with this punching plane L2 being arranged parallel above the sewing plane L1.

A labelling machine comprising a supply spool support (12) adapted to receive a supply spool (28), a takeup spool support (14) adapted to form a takeup spool (32) of web (30) from which at least some labels (74) have been removed, a motor (40) arranged to turn the takeup spool, and a controller to control operation of the motor. A web path (16) is defined between the supply spool and the take-up spool, and the controller is arranged to control the motor to turn the take-up spool so as to cause controlled predetermined linear movement of a web along the web path and onto the take-up spool, furthermore comprising a sensor (50) operable to sense linear displacement of the web and/or displacement of the web in a direction other than the direction of the web, a printer (34) movable between a first position and a second position, and a separator surface (24) comprising a first portion inclined relative to the web path.

A universal heat press machine includes an adjustable supporting frame having, a main body, an actuating handle assembly, and a heat pressing assembly. The heat press assembly includes a first pressing member attaching on the actuating handle assembly, and a second pressing member suspendedly extending from a lower portion of the main body to define an operational space. When the heat pressing assembly is in a heat press position, an imprinting surface of the work piece is arranged to rest on the second pressing member while other parts of the work piece is allowed to temporarily accommodate in the operational space. The first pressing member is pivotally moved to bias against the second pressing member and the imprinting surface of the work piece for imprinting the graphics on the imprinting surface.

A system for determining hang time for a machine operating at a worksite is provided. The system includes a sensing module associated with the machine. The sensing module is configured to track at least one parameter associated with the machine. The at least one parameter includes a machine heading, a machine speed, or a machine location. The system also includes a control module communicably coupled to the sensing module. The control module is configured to receive tracked information corresponding to the at least one parameter from the sensing module. The control module is also configured to analyze the tracked information corresponding to the at least one parameter, based on the received tracked information. The control module is further configured to determine the hang time for the machine, based on the analysis.

A machine for generating mechanical energy and functioning on the principle of exploitation of centrifugal forces of masses being displaced along a closed mechanical circuit over at least a curved section of the circuit. Optionally, the machines also functions on the principle of energy gain caused by masses falling under the influence of gravity in the closed circuit that is permanently maintained in a state of dynamic unbalance with an input, continuous or not, of external energy.

A device and method for measuring the clamping force a machine tool exerts on a tool holder that includes a piston or cylinder body defining a bore that slidably receives a piston. A fluid filled pressure chamber is defined between the piston and the body and a pressure gauge carried by the piston communicates with the pressure chamber such that movement in the piston in at least one direction exerts compressive forces on the fluid in the pressure chamber which is communicated to the pressure gauge. A retention knob is coupled to the piston and is engageable by the machine tool such that the clamping force exerted by the machine tool is transmitted to the piston. Hex-shaped structure on the piston that is received by a complementally formed recess in the cylinder body inhibits relative rotation between the piston and the body and facilitates installation and removal of the retention knob. A pin forming part of the piston is engageable by a pin receiving recess in the piston body and ensures a predetermined orientation between a shank portion and the piston body, during assembly.

The monitoring apparatus includes vibration sensors that detect vibration accompanying machining, a rotation detector and a rotation detection section that detect rotation of a main spindle, and a stability limit and vibration distribution calculation section that creates, on the basis of vibration information obtained from the vibration sensors and a rotation speed of the main spindle detected by the rotation detector and rotation detection section, both a stability limit diagram illustrating a relationship between the rotation speed and a stability limit of the machining and a vibration distribution diagram illustrating a relationship between the rotation speed and the vibration, and displays the created diagrams on a monitor in a vertical arrangement.

The present invention relates to a laundry treating machine, including an air supply unit for supplying air, a tub for having the air supplied thereto from the air supply unit to treat the laundry, the tub having an air recovery opening formed in an outside circumferential surface thereof for recovery of the air to the air supply unit, a lint filter mounted to an inside of the air recovery opening for filtering the lint from the air, a filter cleaning unit for spraying cleaning water to separate the lint from the lint filter, and a flow passage member for guiding the cleaning water dropping from the lint filter to an inside of the tub to an inside surface of the tub.

A drilling tool for machine tools has a drill body and a cutting head arranged on the front face of the drill body. The drill body has at least two chip flutes, which are delimited at their flanks by ribs and at least one of which is spirally curved. Arranged in the ribs of the drill body are coolant channels, which have an outlet opening at the end of the drill body on the cutting head side. A special feature is that the outlet openings are arranged within each one of the chip flutes and communicate with one of the coolant channels arranged in the ribs by way of a straight channel endpiece.

A drilling tool for machine tools has a drill body, a cutting head arranged on the front face of the drill body and a shaft arranged at the end thereof, wherein the drill body has two chip flutes, which are delimited at their flanks by ribs and a first chip flute of which is spirally curved. A second chip flute is not spiraled or is spirally curved with a pitch differing from the first chip flute, preferably running in the same direction of rotation.

A multiple position locking handle for an exercise machine for that is movable into a plurality of different positions when unlocked and that is retained in a single secure position when locked. The multiple position locking handle for an exercise machine generally includes a tubular base having a lower end and an upper end, an elongated member extending through the opening of the upper end of the tubular base and extending downwardly through at least a portion of the tubular base, a handle extending outwardly from the elongated member at an angle, and a locking device. The elongated member is movable within the tubular base when the locking device is in the unlocked state and is substantially not movable within the tubular base when the locking device is in the locked state.

A machine for exercising the rotator cuff muscles that is operable to individually and separately isolate and exercise each of the four rotator cuff muscles while the user is in a seated position. The exercise machine includes a plurality of structural elements including a main vertical beam and a base frame operable to be positioned on the ground, where the main beam extends vertically from the base frame. The machine includes a plurality of pulleys mounted to the structural elements and a plurality of exercise cables running through the pulleys, where handles are coupled to the exercise cables. A seat is mounted to the vertical beam and the handles are positioned relative thereto to allow the user to grasp the handles and perform the several exercises for each arm.

An exercise machine includes a motor that drives a belt to move, and an analysis system to collect a peak energy from the motor and to convert the peak energy into different user exercising data.

An exercise machine rail system for improved exerciser mounting and dismounting, improved functional ergonomics, and reduced risk of exerciser injury when using an exercise machine. The exercise machine rail system generally includes either two rails in close relationship which are linked together via connectors or a singular rail. Bias members are disclosed as either extending along either outer side of the rails, internally to the rail, or underneath the rail. Due to the narrow nature of the rails used by the present invention, an exerciser is able to mount and dismount the exercise machine easily and efficiently.

A method and apparatus for physical exercises and, in particular, for training the movements “jump” and “squat” from spot for training. The method and apparatus can have the “jump” and “squat” motions follow into a continuous alternating sequence as a response to a passing via a training spot in the same continuous alternating sequence of a lower obstacle, obligating the performance of “jump”, and of the upper obstacle obligating the performance of “squat”.

An exercise machine with a two directional pivoting user support assembly has a user support or platform which supports the user and pivots about a first pivot axis during an exercise movement, and is also pivotable about at least one second pivot axis to involve the user's core muscles in balancing and maintaining the user support in a stable position. A manually operable locking device with a simple flip switch lever is provided for selectively locking the user support against rotation about the second pivot axis, so that the user can easily chose whether to perform the exercise with a stable support or to add a level of difficulty by using the unstable seat mode and exercising core muscles during the exercise.

Exercise machine with load rolling simulation substitutes training in the open air in which a load is rolled or pushed. The exercise machine comprises a continuous moving track (2) of adjustable incline. Above the housing (1) and in front of the continuous moving track (2) is mounted a wheel (4) with paddles (5). The paddles (5) on the outer circumference of the wheel (4) are performed in the shape of teeth, ribs, panels or bars. The wheel (4) is connected by a transmission (20) with the track (2). The track (2) is connected with the brake system (32) for change of resistance to motion of the track (2), and thereby also to turning of the wheel (4). The control panel (6) with display contains commands for adjusting and monitoring the inclination of the track (2) and the resistance to turning of the wheel (4) and for monitoring the velocity and travelled distance of the moving track (2), as well as the duration of the training on the continuous track (2). The exercise machine is used in at least three ways of exercising, it has exceptional ergonomic characteristics, and enables safe training.

The present invention provides an alignment device of cutting machine, which includes: a stand and a ball transfer unit mounted on the stand. The ball transfer unit includes a main body, a first rotating body, and a plurality of second rotating bodies arranged between the main body and the first rotating body. The main body has an end forming a receiving chamber and thus forming a receiving chamber sidewall. The second rotating bodies are rotatably arranged on the receiving chamber sidewall. The main body forms an air entrance passage in communication with the receiving chamber. The receiving chamber sidewall extends out to form a bearing section corresponding to the air entrance passage. The bearing section has a side surface in which air outlet ports are formed. The main body has an opposite end forming a connection section that is mateable and coupleable to the stand. The present invention uses a ball transfer unit to replace the float pad made of porous carbon fiber material for aligning a glass substrate in order to achieve the purposes of lowering down cost.

A weighing machine (10) that may be scales employed in the packaging industry to deliver batches of product to a packaging machine below the weighing machine (10). The weighing machine (10) has a plurality of troughs (19) along which the product passes and that extend downwardly away from a generally central upright longitudinal axis (11). Each trough (19) extends downwardly from an inlet portion (21) to an outlet portion (22), with the outlet portion (22) spaced radially and angularly from the inlet portion (21) relative to the axis (11).

Methods and apparatus to monitor conditioning machines are disclosed herein. An example system includes a plurality of work rolls to process a strip material. A first sensor detects a first distance between an upper surface of the strip material and a first reference location and a second sensor detects a second distance between an upper surface of the strip material and a second reference location. A controller determines a difference value between the first distance and the second distance to detect material curvature of the strip material.

A luminous character enclosing machine has an upper supporting plate (2) and a lower supporting plate (3) which are installed on a machine frame (1). A plate inlet and a plate outlet are formed respectively on two ends of the upper and lower supporting plates. A feeding unit, a grooving unit, an arc-curving unit, and a plate-clamping unit arranged between the two supporting plates are provided in succession from the plate inlet to the plate outlet. A grooving driving device is installed on the machine frame, and drives the grooving device to move up and down. This kind of grooving mode is a cold processing mode, heat generation during working which makes color of the stainless steel plates change is avoided, and a phenomenon of knife broken due to high speed rotation of a saw blade and the hardness of the stainless steel is prevented. The machine is simple in structure and convenient to operate.

The present invention is a shrinker stretcher machine that uses four distinct and separate tool cartridges to perform both shrinking and stretching operations by simply removing, rotating each tool cartridge 180 degrees, and reattaching it in its designated position. Each tool cartridge removably carries a jaw that can be removed and securely replaced with either a shrinker or stretcher jaw to accommodate the operation being performed. Each tool cartridges and jaw is firmly held in place by magnets and interlocking keyed surfaces to properly align and hold the tool cartridges and jaws.

A machine tool (1) for processing a workpiece (2) by relative movement of a tool (18) with respect to the workpiece (2), including a homogenizer (15) into which water and oil are taken to disperse oil homogeneously in water, a working fluid produced in homogenizer (15) being supplied to a work area for processing of the workpiece.

A machine is provided for processing elongate strand-form material, having a rotatably mounted rotor bow which is used to twist the strand-form material and, proceeding from a cross-sectional area, extends in the direction of a longitudinal axis. In the direction of this longitudinal axis, the rotor bow extends in a curved manner at least in portions. In this direction, the rotor bow has a longitudinal groove extending substantially orthogonal to this cross-sectional area. At least regions of this longitudinal groove are covered by at least one guide element. In this rotor bow, the strand-form material is guided movably in the direction of the longitudinal axis. The present rotor bow is preferably made of plastics, preferably reinforced with fibers.

The invention relates to a method of operation for an air jet spinning machine, which is characterized in that the spinning process is interrupted when a yarn fault is detected, and subsequent to the interruption of the spinning process, a piecing process is initiated which is at least partly carried out by the spinning station and in which a number of yarn process and handling devices directly assigned to the spinning station are applied. Furthermore, an air jet spinning machine is proposed which permits such a piecing method.

The spinning station of a spinning machine includes a yarn end disposal means, arranged between the outlet of the spinning device and the winding device, and with the aid of which an end section of the produced yarn is separated from the rest of the yarn and eliminated. Furthermore, a process for removing an end section of a yarn at a spinning station of a spinning machine prior to the subsequent piecing process is proposed, wherein the end section is gripped, cut off, and subsequently eliminated from the area of the spinning station with the aid of a yarn end disposal means arranged between the outlet of the spinning device and the winding device.

A method is provided for interrupting yarn production on a spinning machine upon detecting a defined deviation of a monitored yarn parameter from a target value, upon changing bobbins at a winding device, and/or prior to switching off the spinning machine. The feed speeds of the delivery device, the take-off device, and the winding device are gradually reduced to a stop in order to interrupt the yarn production, wherein the reducing takes place such that an end of the produced yarn is located within the spinning point after the reducing is completed.

An SZ laying machine for umbilical/power umbilical is described. Starting from an input end the machine includes: a first die receiving and collecting a first set of elongate elements substantially rectilinear from respective supplies of elongate elements, a second static die which receives and collects a second set of elongate elements substantially rectilinear from respective supplies of elongate elements and this second set is closed together with the first set into an assembled bundle, at least one supporting means which keeps the assembled bundle radially in place; a revolving device able to torsional rotate the bundle back and forth in an oscillating SZ manner, and a tape or band winding apparatus which in immediate proximity to the revolving device applies band or tape circumferentially onto the SZ laid bundle of elongate elements.

A method interrupts yarn production on a spinning machine having at least one spinning point having an inlet for a fiber material and an outlet for the yarn made from the fiber material, and wherein the spinning machine comprises a delivery device for feeding the fiber material into the spinning point, a take-off device for drawing off the yarn out of the spinning point, a winding device for winding up the produced yarn, and a yarn monitoring unit for monitoring at least one yarn parameter. Yarn production is interrupted upon detecting a defined deviation of the monitored yarn parameter from a target value, upon changing bobbins at the winding device, and/or prior to switching off the spinning machine. The feed speeds of the delivery device, the take-off device, and the winding device are gradually reduced to a stop in order to interrupt the yarn production, wherein the reducing takes place such that the end of the produced yarn is located between the outlet of the spinning point and the winding device after the reducing is completed.

A yarn-producing apparatus for an air spinning machine, which is used for producing a yarn from a fiber strand with the assistance of an air flow, has a spinning tip with an inlet opening surrounded by the outer surface of the spinning tip, in the area of which a yarn is able to be produced with the assistance of the air flow. The yarn-producing apparatus has an internal inset with a draw-off conduit adjacent to the inlet opening for the yarn and several air outlets branching off on the side from the draw-off conduit, such that an air flow introduced counter to the direction of spinning (S) in the draw-off conduit can escape in part through the air outlets and in part through the inlet opening. In addition, a spinning unit with a corresponding yarn-producing apparatus is provided.

Machines are often used to collect and transport materials in a work environment. One of the more common methods of collecting and transporting materials is with a fork having tines. Another common instrument attached to a machine for collecting and transporting materials is a bucket. The present disclosure describes a bucket that engages the tines of a fork, and therefore can be used with a machine that already has a fork attached. The present disclosure also engages with tines of multiple lengths, meaning that the same bucket will engage with forks from different machines. The bucket has first and second side members; a collecting member extending between the first and second side members; and an engagement portion having an engagement surface and a pocket.

Wear assembly for machinery includes wear and support elements and a retaining pin for attaching them to each other. The retaining pin has protrusions and the wear element has cavities such that the protrusions can be passed therethrough. The support element has a recess for receiving one of the protrusions. In a first position the retaining pin can be inserted into the wear and support elements. In a second position one protrusion is snap fitted in one cavity so the retaining pin cannot be rotated to the wear and support elements and the other protrusion is received into the recess abutting an inner surface of the wear element such that the retaining pin cannot be displaced axially to the wear and support elements.

A mining shovel includes a boom and a transmission unit coupled to the boom. The transmission unit includes an outer housing, an internal motor housing disposed within the outer housing, and a venting system coupled to the outer housing to direct air through both the outer housing and the internal motor housing.

Provided is a hybrid construction machine including: a hydraulic actuator; a hydraulic pump which discharges hydraulic fluid for driving the hydraulic actuator; a generator-motor which performs an electric generator action of generating electric power and an electric motor action of generating motive power; an engine connected to the hydraulic pump and the motor-generator; an electrical storage device; and a controller which causes the generator-motor to perform the electric generator action and charge the electrical storage device and causes the generator-motor to perform the electric motor action by electric power discharged from the electrical storage device to assist the engine. The controller causes the generator-motor to start the electric generator action when an engine output becomes equal to or greater than a predetermined engine lower limit output, and controls the electric generator action to keep the engine output no lower than the engine lower limit output.