Abstract: In some embodiments, a formulation delivery device comprising a motor and a formulation dispensing assembly is provided. The formulation dispensing assembly comprises a reciprocating nozzle assembly operated by the motor. The formulation delivery device further comprises circuitry configured to generate signals indicative of application of one or more formulation products dispensed by the formulation dispensing assembly, and circuitry configured to transmit the signals indicative of the application of the formulation products to a usage analysis system. In some embodiments, a computer-implemented method of automatically determining at least one hair characteristic for a subject is provided. A computing system receives signals from a formulation delivery device indicative of application of one or more dispensed formulation products, analyzes the signals to automatically determine the at least one hair characteristic, and stores the at least one hair characteristic in a usage data store.

Abstract: A panel attachable to a backpack body. The panel having at least one through-hole formed therein to allow air to flow into a gap defined between the panel and the backpack body. An air-moving device is mountable to the panel, with an outer portion of the air-moving device extending forwardly from the panel and an inner portion of the air-moving device positioned in the gap. The air-moving device causes air to flow into the gap through the at least one through-hole and into one or more inlets of the inner portion. The air-moving device causes air to flow out one or more outlets of the outer portion.

Abstract: A hammock assembly is provided and includes, a hammock, a zipper fastening system and a cover and dual cover suspension lines. The hammock may be a bridge hammock using dual spreader bars to maintain the hammock in an expanded configuration. The dual cover suspension lines suspend the cover with a horizontal generally planar portion of the cover between the dual cover suspension lines, thereby providing an expansive canopy.

Abstract: The TentPak is a hiking backpack wherein the tent is stored in the waist strap of the backpack. The tent floor is sewn into the waist strap. The waist strap unzips to reveal the tent material. The backpack is used as the frame of the one person tent as four of the six tent pole pockets are on the backpack itself.

Abstract: A caddy for carrying window cleaning accessories such as squeegees. The caddy can hang from the waistbelt of a user. The caddy can include a lower reservoir portion engaged by an upper sleeve portion. The sleeve loosely engages the oversized brim of the reservoir to form a peripheral drainage gap between the outer surface of the sleeve and the reservoir brim to trap liquids dripping over the outer surface of the sleeve. The caddy can be simply manufactured by a pair of arcuate panels bonded along a peripheral seal to a oblong, outwardly concave back panel to securely rest against a user's upper thigh.

Abstract: Exemplary embodiments of a portable accessory holder are provided. The apparatus can include a housing having a top portion, a bottom portion, a front portion, a rear portion, a first side and a second side, and a hinge provided on the front portion. The hinge can include a first leaf secured to the front portion of the housing, the first leaf having a first side and a second side opposite the first side, a second leaf rotatably secured to the first side of the first leaf, the second leaf including a magnet, the second leaf being configured to rotate away from the first leaf and against the front portion of the housing, and a third leaf rotatably secured to the second side of the first leaf, the third leaf including a magnet, the third leaf being configured to rotate away from the first leaf and against the front portion of the housing.

Abstract: A brush head mounting structure of a liquid spraying brush, includes a connecting base provided at the end of a handle and a mounting base provided on a brush head; the other side of the connecting base with respect to the handle is provided with a slider, one side of the mounting base adjacent to the connecting base is provided with a sliding groove in sliding fit with the slider, a limiting structure is provided between the connecting base and the mounting base, the limiting structure is capable of limiting the connecting base and the mounting base along the sliding direction perpendicular to the slider, both sides of the mounting base corresponding to the sliding groove are provided with elastic arms, the position of the mounting base corresponding to the elastic arm is provided with an avoidance space for the elastic arm to expand outwards.

Abstract: A hairbrush incudes a body, the body having a first brush with a through-hole on its surface and a second brush without a through-hole on its surface, and the body further having a passage in which hairdressing is flowed, wherein one end of the first brush is connected to the passage and the other end is exposed; a grip, the grip having a container for storing hairdressing; and a pump for sending the hairdressing stored in the container to the first brush via the passage.

Abstract: The present invention discloses a foam cleansing instrument, including a base, a liquid injection bottle, a cleansing head, and a foaming pump. The base has a bottle mounting position. The liquid injection bottle is detachably mounted in the bottle mounting position, and enables a cleanser in the liquid injection bottle to flow downward to a bottle mouth of the liquid injection bottle by its own gravity. The cleansing head is arranged on the base and configured to fit a human face to smear foam on the human face. The foaming pump is connected to the bottle mouth of the liquid injection bottle through a liquid inlet pipe and connected to the cleansing head through a liquid outlet pipe; and at least one of the liquid inlet pipe and the liquid outlet pipe is connected to a foam maker.

Abstract: A brush assembly comprises a support rotatable about an axis and an annular brush essentially consisting of a brush band and an array of bristles connected thereto and projecting radially therefrom. The brush band and the bristle array extending on the support obliquely to a perpendicular to the axis of the support. Thus a longitudinal extension of the band and also the bristle array are connected to the support extending at an angle to the axis deviating from a perpendicular orientation with respect to the axis of the support.

Abstract: A rotatably driven machine tool has a tool holder rotatable about an axis and having at least one drive-side part and a tool-side part, both parts being detachably connected to each other for picking up and holding a rotary tool. A bayonet connection couples the tool-side part and the drive-side part to each other.

Abstract: An object of the present invention is to provide a makeup brush bristle material and a makeup brush bristle material assembly, both made of synthetic resin, as well as a makeup brush using such bristle material or bristle material assembly, all suitable for applying both powder cosmetics and liquid cosmetics, or more specifically, offering good uptake and release properties with respect to powder or liquid cosmetics. As a solution, a makeup brush bristle material is provided that comprises S-twisted or Z-twisted core-sheath complex monofilaments whose core part is constituted by synthetic resin A and sheath part is constituted by synthetic resin B that differs in type from synthetic resin A, characterized in that the cross-section of the core-sheath complex monofilaments in the direction orthogonal to the axis of fiber has a cocoon shape.

Abstract: A folding frame and an outdoor table or outdoor chair using the folding frame. The folding frame comprises a base, a plurality of support legs hinged around the base, a plurality of extension support bars hinged on the support legs and capable of folding, and a locking mechanism. The base is provided with a plurality of gear racks. Both sides of each gear rack are configured with vertically distributed first teeth part. Both sides of the upper end of the support leg are configured with circularly distributed second teeth part. The upper end of the support leg is positioned between two gear racks, and the second teeth part of the support leg mesh with the first teeth part of the gear rack. When the locking mechanism can lock the unfolded support legs, the gear rack also locks the support legs.

Abstract: The present application relates to the field of storage technology, and provides a door assembly and a storage cabinet. The door assembly includes a door body provided with a handle groove; a driving assembly; a rack hinged to the door body and provided with a cover plate assembly; and a first detecting member configured to generate a first detecting signal; where the driving assembly is adapted to drive the rack to switch between a pressing state and a resetting state based on the first detecting signal; and in the pressing state, the cover plate assembly avoids the handle groove, and in the resetting state, the cover plate assembly shields the handle groove.

Abstract: A display system for coupling to visual communication products has a frame and a display surface, wherein the display system presents a coupling device for coupling to the frame, associated with an accessory that can be manually coupled and decoupled, defining a support. For this purpose, the coupling device presents a flattened body, of a length according to the thickness of the frame, having an end front flange which determines an elbow, and which defines an insertion groove in the profile of the frame, having at its opposite end an elastically deformable rear clipping flange. In this way, the coupling device presents on its front side edge an opening defined by a semi-sphere acting as a positioning pin where the accessory is coupled.

Abstract: A multi-purpose rack crossbar includes: a rack crossbar body, and a first mounting component removably connected to the rack crossbar body; the rack crossbar body is provided with a first mounting groove and at least one second mounting groove, the first mounting groove is removably connected to a first end of the first mounting component, and a runner assembly is provided at a second end of the first mounting component; the multi-purpose rack crossbar device includes: a second mounting component fitted and connected to the second mounting groove, and the multi-purpose rack crossbar; the sucker includes: the multi-purpose rack crossbar or the multi-purpose rack crossbar device.

Abstract: A furniture gap barrier includes an elongated net; a reinforced fabric binding attached to edges of the net; a loop fastener attached to an elongated central portion of the binding on the top and the bottom; a hook fastener attached to the binding on each end; and a strap extending from the reinforced fabric binding. The barrier is wrapped around the legs of furniture to prevent objects from rolling under the furniture.

Abstract: A backrest armrest linkage assembly and folding chair frame; the backrest armrest linkage assembly includes a backrest bar and a armrest bar, wherein the middle section of the backrest bar is hinged on the rear support shaft behind the chair, and the lower end is constrained in the guide sleeve. The front section of the armrest bar is positioned on the front support shaft in front of the chair through the chute seat, and the rear end section is hinged to the lower section of the backrest bar, which can draw and restrain the swing angle of the backrest bar, and thus constitute a folding chair frame with adjustable backrest.

Abstract: An extendable seating interconnected mechanism and a seating supporting frame, including an interconnected assembly, a seating frame, and a backrest mount, wherein the backrest mount is rotatably connected to the interconnected assembly and the seating frame, respectively; the interconnected assembly includes a mounting plate and a driving link, wherein the mounting plate includes a lateral-plate part and a supporting part; the driving link is rotatably connected between the seating frame and the lateral-plate part; an end of the supporting part is connected to the lateral-plate part; and an opposite end of the supporting part is rotatably connected to the backrest mount.

Abstract: The invention provides a window structure for visualizing the internal structure of upholstered furniture and seats, comprising a base, a side surface of the base is provided with installation grooves, and inner walls of the installation grooves are provided with transparent windows, an inner wall of the base is equipped with a seat board, the top surface of the seat board is equipped with a shaping layer, and the top surface of the shaping layer is equipped with an elastic layer. The outer layer, the elastic layer and the shaping layer can improve the comfort of the user; the elastomer layer has good impact resistance, always return to shape and is not easy to be damaged, and can improve the service life of the invention; through the transparent windows, the user can conveniently view the internal structure of the invention; the ventilation grooves play the role of ventilation.

Abstract: An adjustable chair headrest, relating to the technical field of office chairs, comprises a support rod connected to a chair back and a headrest, and further comprises an elastic sliding mechanism connecting the headrest and the support rod. The elastic sliding mechanism is provided with a lock mechanism and comprises a stop block, a sliding push rod and an elastic telescoping mechanism, and an end, away from the stop block, of the sliding push rod is connected to the headrest. One end of the sliding push rod stretches into a groove of the support rod, and a gap is reserved between the sliding push rod and one end of the stop block. A tension spring is disposed in the gap and has two ends respectively connected to the sliding push rod and the stop block. The headrest can extend and retract horizontally when users change their posture.

Abstract: A rotatable armrest includes a shaft to allow the arm pad to rotate and a locking mechanism defining a set of stopping positions. The profile of the arm pad is defined to clearly delineate portions of the expanded arm pad for each passenger. The rotatable armrest may also include a cam driven divider that extends from the arm pad as the arm pad is rotated to further define delineate portions of the expanded arm pad for each passenger.

Abstract: A method and system for temperature control of a microclimate device are disclosed. The temperature control can be integrated into a reservation system for the microclimate device. A user interface can receive a user input of a temperature control setting. The user interface can be integrated into the microclimate device. A processor can receive the user input and control a heating and/or cooling device to execute the temperature control setting.

Abstract: A stool includes a base with a post extending therefrom. A seat is connected to a distal end of the post. In some configurations, the seat may be configured to act as a deployable back rest. A deployable anti-fatigue mat is connected to the base. In some configurations, the deployable anti-fatigue mat is attached to the base via a hinged connection. In some configurations, the deployable anti-fatigue mat is attached to the base with a sliding connection that allows the deployable anti-fatigue mat to slide out from the base.

Abstract: A seat assembly includes independently rotatable and reclinable seats. The seats have back support sections that can be rotated between a sofa position and a compact position as well as the sofa position and a reclined position. The seats can further include leg rests that are movable between a lowered position and a raised position.

Abstract: A folding furniture assembly can be provided that includes a foldable frame and any combination of an upper bunk, a lower bunk, a stowable chair, and a stowable table. The foldable frame is coupled to a support and includes a front leg configured to brace the foldable frame away from the support when unfolded. The upper bunk is configured to support a sleeper and is pivotably coupled with the front leg and the support. The lower bunk can support a sleeper below the upper bunk and is pivotably coupled with the support and the front leg. The stowable chair and/or the stowable table is/are stowably supported by the assembly, e.g., by the lower bunk. The stowable chair and/or the stowable table has/have a stowed configuration when the foldable frame is in unfolded and can have a deployed configuration when the foldable frame is folded.

Abstract: A bedding foundation has a linear actuator for moving a roller carriage forward and backwards. The roller carriage includes wheels which move along rails supported below a rigid platform having an opening extending through the platform. The roller carriage includes a lifter which raises and lowers a roller independently of the movement of the linear actuator. Regardless of the position of the linear actuator, the roller may be raised or lowered. The roller moves back and forth inside the opening extending through the rigid platform and imparts a massage movement to a mattress above the foundation.

Abstract: The invention provides a baby bouncing chair, comprising a table, a seat unit, a plurality of chair leg units, a bouncing disc module, a plurality of supporting band units, a first cover plate, a bounce-control module and a limiting fastening piece. Each of the plurality of supporting band units is provided with a limiting rod. The bounce-control module is provided with a plurality of stop blocks. The bounce-control module controls movements of the limiting rods and the plurality of supporting band units in the bouncing disc module by the stop blocks to control the baby bouncing chair to be in a bouncing state or a non-bouncing state.

Abstract: A theft deterrent system for mounting on a retail shelf that includes a receiver to attach to the retail shelf and a plurality of gates positioned along the receiver. Each gate of the plurality of gates is arranged to swing open from the receiver. A plurality of blockers is arranged in a slidable manner along the receiver. Each blocker provides audible feedback as it slides relative to the receiver. Each blocker prevents a respective underlying gate to swing open from the receiver.

Abstract: The present invention describes a shelf edge protector for an electronic shelf label (“ESL”) to protect the ESL from impact disturbance, displacement, or dislodgement by a shopping cart, restocking cart, a person, or other causes. The protector has an upper and a lower portion, connected by a bend. The protector is made of a clear material and its upper portion attaches with rivets or other attachment mechanisms to the forwardmost region of the top surface of a display shelf. The protector has predrilled holes at 1-inch or ½-inch intervals to align with a shelf's holes so that product dividers can be installed anywhere along the length of the protector without the need to drill holes after installation. The holes may also be pressure-actuated. The protector's lower portion has rounded or chamfered corners for safety to prevent snagging on clothing or other elements that may brush up against the protector.

Abstract: An artwork handling system including: a bracket having a body being configured to be attached to an artwork, the body having an aperture extending at least partway therethrough; a handling tool, wherein one or more parts forming the aperture are adapted to: transfer weight of the artwork to the handling tool that is inserted into the aperture from a side of the artwork, the side extending transversely to a front surface displaying an artwork area; and assist in holding the artwork with the handling tool.

Abstract: An audio emitting pillow assembly includes a pillow that can be positioned around a user's neck. The pillow has a pair of prominences extending upwardly from the pillow and each of the prominences is positioned adjacent to a respective one of the user's ears when the pillow is positioned around the user's neck. A communication unit is integrated into the pillow and the communication unit receives streaming audio from the personal electronic device. A pair of speakers is each integrated into a respective one of the prominences and each of the speakers is aligned with a respective one of the user's ears when the pillow is positioned around the user' neck. Each of the speakers is in communication with the communication unit to audibly emit the streaming audio from the personal electronic device thereby facilitating the user to enjoy the streaming audio.

Abstract: A proning headrest includes a horizontal board; cylindrical support posts distributed on the board; two removably juxtaposed support pads resting on the support posts; and a face pad positioned parallel to and between low-profile pillows. Recessed portions on the perimeter of the support pads form a face cutout between. Next to the recessed portion of each support pad, one surface has a low-profile pillow attached. The face pad has a convoluted air bladder and a hole aligned with the face cutout. The proning headrest keeps the patient's spine in a neutral position, keeps the endotracheal tube/tracheostomy aligned, and keeps the ventilatory circuit intact while staff rotate the patient into a prone position.

Abstract: The present invention relates to a blank configured to form a collapsible bowl. The blank is intended to provide a device that can be easily transformed between a flat configuration and an erect configuration. The blank comprises, a first radial crease-line and a second radial crease-line, meeting at a centre point within the blank and forming a fold segment and a major segment. The major segment further includes an over-fold segment and an under-fold segment adjacent to the fold segment. The blank includes a base crease-line, that forms the boundary of the base section and the wall section. The blank is erected by rotating the fold segment around the center point until the over-fold segment overlaps the fold segment, and the under-fold segment underlays the fold segment. When erected the base section forms a conically shaped structure within the erected collapsible bowl.

Abstract: A container magnetic mount for a device has a container lid defined by a rim cylindrical wall, a top, and a lid joint element. A device mount head includes a device mount head joint element in rotating engagement with the container lid. The lid joint element and the device mount head joint element define a dynamic coupling, with the device mount head being orientable between a raised reverse position and a lowered forward position. The device mount head incorporates a joint arm and the device mount head joint element, and an angularly offset head body with one or more magnets attractive of a ferromagnetic element on the device.

Abstract: Provided herein novel assembly comprising a vessel component and a support component that can become reversible attached or detached from each other.

Abstract: A method for making a container includes forming a first cavity of a container by shaping an inner wall so that a first surface of the inner wall defines the first cavity; forming a second cavity of the container by shaping an outer wall so that a third surface of the outer wall surrounds a second surface of the inner wall such that together the third and second surfaces define the second cavity; and connecting the inner and outer walls together. The method then includes forming a hole through the outer wall to expose the second cavity to the outside ambient environment and then applying an enamel coating, while preventing the enamel coating from being deposited in the hole. After the enamel coating is applied, the method includes heating the container to glaze the enamel coating and fix the coating to the one or more surfaces.

Abstract: An exemplary dunking tool may have a sinusoidal shape as a result of the interconnection between a handle, a stem, and a body that has feet and elastic or plastic features. The dunking tool may be designed to hold food items and dunk the same in a medium without significant risk of dropping the food item into the medium.

Abstract: The present invention teaches a residential wall penetrating mailbox with enhanced box handling capability, openable by barcode scanning, and openable from either inside or outside a home. A body which is generally column shaped has a front door which open at the top and hinge near the bottom and which has transfer means extending from the bottom and interior end of the front door into the interior space of the mailbox, said transfer means transferring and moving boxes away from the mailbox into the interior of the home. Thus, a delivery person may access a box from outside the home, while the homeowner may do the same without leaving the safety of the home interior while allowing for multiple boxes to move in the safety of the interior or the home.

Abstract: A juicer is disclosed. The juicer includes: a juice-extraction drum crushing and squeezing a juicing target and receiving a screw therein; a hopper coupled to the juice-extraction drum to define a predetermined space receiving the juicing target therein, and comprising an inner protrusion protruding from an inner surface of the hopper toward a central axis of the hopper; and a blade coupled to the hopper to be rotated about the central axis of the hopper and cutting the juicing target before the juicing target reaches the screw, wherein the blade includes: a lower blade rotated in a state of closely contacting a bottom surface of the hopper; and an upper blade bent to cover the inner protrusion of the hopper from above, wherein the upper blade crushes the juicing target in cooperation with the inner protrusion of the hopper.

Abstract: A muffler cover for an appliance includes a first room, second room, and a first channel. The second room is positioned separate from the first room. The first channel is connected to the first room via a first inlet and connected to the second room via a first outlet. The first channel changes from a first direction to a second direction and changes from the second direction to a third direction. The first direction is substantially opposite to the second direction, and the second direction is substantially opposite to the third direction. A muffler and an appliance using the muffler are also provided.

Abstract: The present invention relates to a centrifugal coffee brewing device, comprising: a spinning assembly which is rotatable about a main axis, the spinning assembly comprising: a chamber element comprising a bottom wall, a cylinder element comprising a filter, wherein the chamber element and the cylinder element form a brewing chamber, a main drive for rotating the spinning assembly about the main axis for centrifuging the coffee, wherein the cylinder element including the filter is movable between a first, lower position in which the filter forms the circumference of the brewing chamber and in which the spinning assembly has a brewing configuration, and a second, upper position in which the circumference of the brewing chamber is open, and in which second position coffee residue can be ejected by spinning the chamber element.

Abstract: Apparatus for producing a beverage, in particular coffee, includes brewing cylinders adjusted in the manner of a carousel about an axis of rotation, each with an extraction cell and an extraction piston, and beneath the brewing cylinder at least two pistons. The pistons are positioned to be pushed into a brewing cylinder or extracted from it. Provided above the brewing cylinders are at least two feed channels and, arranged at a distance therefrom, at least two extraction pistons. These feed channels can each be connected, in a specific position of the brewing cylinders, at least above a brewing cylinder for loading of beverage powder, into which a piston can in each case be inserted from below. The extraction pistons are each insertable into a brewing cylinder adjacent to the loaded brewing cylinder or removable from it.

Abstract: A nozzle 20 has a fluid flow passage 26 which defines a fluid flow path from an inlet 5 end of said passage towards an outlet end of said passage. A restrictor 29a is movable under the control of an actuation system 27 relative to the passage to vary the minimum cross-sectional area of the fluid flow path through the passage. The restrictor 29 is moved to project into the passage to provide a restricted opening in the passage or removed from the passage to allow an unrestricted flow through the 10 passage. The nozzle 20 is particularly suitable for use in a beverage preparation machine to generate microfoam in a beverage. When the restrictor 29 is retracted from the passage 29, the passage and the restrictor can be cleaned by flushing the nozzle. The restrictor 29 may be a pin-like member aligned with the passage and moveable parallel to the axis of the passage.

Abstract: A grease spatter containment device for containing bacon grease spatter includes a lid, which is selectively engageable to a pan so that the lid covers an open top of the pan. The lid comprises a plurality of layers, with adjacently positioned layers being separated by a gap. A plurality of apertures is positioned in the plurality of layers so that apertures positioned in one of the adjacently positioned layers are offset from the apertures positioned in the other of the adjacently positioned layers. The lid thus contains grease spatter resulting from cooking of a food item, such as bacon, that is positioned upon an elevated grated cooking surface that is positioned in the pan.

Abstract: A beverage heating receptacle device for heating a beverage includes a shell, which defines an interior space and which is formed to define a receptacle having an annular sidewall that extends from a bottom to an open top. A beverage is positionable in the receptacle. A heating element is engaged to the shell and is positioned in the interior space proximate to an inner section of the annular sidewall and an upper section of the bottom. A base is selectively engageable to the receptacle so that the base extends from the bottom. A battery is positioned in the base and is operationally engaged to the heating element upon engagement of the base to the receptacle. The battery thus is enabled to selectively power the heating element to heat the beverage.

Abstract: A wireless power transmission apparatus including at least one processor configured to drive a plurality of working coils to transmit power to drive a communication interface of a cooking appliance with which a communication connection has been released when the cooking appliance is moved from a first cooking zone; receive a first wireless communication signal including identification information from the cooking appliance, and drive the working coils to generate respectively corresponding magnetic fields according to a plurality of different power transmission patterns corresponding to a plurality of cooking zones; and output second cooking zone information through an output interface in response to receiving a second wireless communication signal including the identification information regarding the cooking appliance and information regarding the second cooking zone corresponding to one of the plurality of different power transmission patterns detected at a current location of the cooking appliance.

Abstract: A switchable grill grate assembly for a cooking or barbecue grill includes a main frame configured to rest on top of a cooking grill. The main frame provides an open support framework for a horizontal slide track which extends from one end of the support framework to the other. Separate grill grate sections engage with the slide track in a manner that allows one grill grate section to be constrained to sliding back and forth on the slide track and the other grill grate section to be lifted upwardly off of the slide track and rotated up and over the other grill grate section as the first grill grate section slides underneath the second grill grate section.

Abstract: A barbecue arrangement comprising a barbecue body having a cooking volume, one or more burners positioned to provide heat to the cooking volume; a gas source adapted to supply a gas to the one or more burners, and one or more control means to control the flow of gas from the gas source to the one or more burners producing a flame when the gas is ignited; a flame detection assembly, the flame detection assembly adapted to sense the flame from the one or more burners and a control means adapted to shut off the gas flow to the one or more burners if the flame is not detected within a pre-determined period of time.

Abstract: Disclosed herein is a portable direct-fired cooker including a lower case supporting a roasting plate mounted at an upper portion thereof; an upper case spaced apart from the lower case and including a heater module emitting a flame ignited upon receiving gas toward the lower case; a lifting frame coupled to a lower surface of the roasting plate to support the roasting plate; and a lift unit lifting and lowering the lifting frame, wherein the portable direct-fired cooker further includes: a spring mounted on a bottom surface inside the lower case and elastically supporting the lifting frame. According to the present disclosure, it is possible to smoothly lift and lower a top-down portable direct-fired cooker and to stably maintain a state after the lifting and lowering operations.