Abstract: A portable sign having a two axis adjustable mounting requiring no tools for adjustment. The sign may be an electronically programmable flat sign. The mounting may comprise at least one linear slidably adjustable arm configured for varying a position of the arm. The arm may have a suction cup attached thereto by a flexible band wrapping around the arm. The flexible band configured to allow rotation around the arm in a plane perpendicular to the arm. The flexible band having detents molded therein to ensure secure retention of the weight of the sign at any detent stop position. The sign may have a housing with slots running the length of the sign for attaching the arms. The housing may be extruded and may include board mounting and end cap attachment features in the extrusion. The sign may typically include four adjustable arms; however any number may be used.

Abstract: A road sign, for viewing by primary traffic and right-angled traffic comprises a sign plate having a first indicia representative of the sign's message directed to the primary traffic and a lateral member having a second indicia. In a preferred embodiment, the lateral member has suitable dimensions, is suitably positioned relative to the sign plate and has suitable second indicia so as to give the appearance, when viewed by right-angled traffic, that a portion of the sign plate was bent substantially perpendicular to the sign's normal orientation along substantially the vertical axis of the sign. Additional embodiments are also provided.

Abstract: The invention relates to an arrangement of multiple identification plates (10) for identifying objects. Each identification plate (10) has a flat material strip which has a front surface and a rear surface, which extends in a longitudinal direction between two ends, and which has at least one fixing tab (16), the tab being connected to the front surface and extending at a distance from the front surface in some sections. According to the invention, a base (40) is provided on which the identification plates (10) are removably fixed, the identification plate front surfaces and rear surfaces each lying on one plane, and the base (40) has a number of fixing openings (42), the number corresponding to the number of fixing tabs. One of the fixing tabs (16) protrudes through each of the fixing openings, and the fixing tabs (16) are removably fixed to the base (40).

Abstract: Composite boards are disclosed herein. An example of the composite board includes a first outer layer, a second outer layer, and a middle layer positioned between the first and second outer layers. The first and second outer layers each include chemical pulped cellulose fibers and low moisture absorbing fibers. The middle layer includes the cellulose fibers and a moisture repelling agent. Also disclosed herein are art frames that include the composite boards.

Abstract: The present invention is an ambidextrous slide stop for use with a handgun consisting of an assembly of a right side slide stop bracket and a left side slide stop bracket, so that a right handed shooter can still activate on the left side with the right thumb. Alternatively, right side slide stop allows a left handed shooter to use the left thumb to pivot the assembly downward to release the slide. A pivot pin of the right bracket engages with a pivot shaft of the left side bracket.

Abstract: A high-tech security gun that works with Wi-Fi or any other special network, and will not work when it is removed from the address installed by its provider. The gun does not point forward at anyone except it is operated to point at any direction, when controlled wirelessly with a special module.

Abstract: A vertical fore grip mountable on the tactical rail of a tactical firearm is described. The fore grip includes a vertically oriented gripping member having an upper end, a lower end and an axially aligned bore; a tactical rail clamp attached to the gripping member upper end; a stabbing spike with a shank slidable within the gripping member bore between a stowed position within the gripping member and an extended position projecting from the lower end of the gripping member; and a latching member selectively securing the spike in the stowed and extended positions.

Abstract: A rotatable, adjustable circular focus sight is installed in a front sight of a handgun. The focus sight has a circular opening that may be rotated to different positions in the front sight to sharpen aiming of the handgun in order to accommodate varying environmental conditions and different types of ammunition. Alternative embodiments of the focus sight incorporate various cross-hair patterns and a pinhole.

Abstract: The present invention relates to systems and methods for making and using a firearm that includes an extendable light source that can be selectively moved closer to and farther from a longitudinal axis of a barrel of the firearm. In some cases, the light source includes a laser or a light bulb, such as an LED. By being able to selectively move closer to and farther from the barrel's longitudinal axis, the light source can be adjusted so that it is able to shine past one or more attachments that are placed on a distal end of the firearm. Other implementations are also described.

Abstract: A system and method for providing floating decoys is described. The system includes a mechanism for moving tethered decoys in a motion that mimics the natural movement of floating waterfowl. The mechanism includes a motor that moves one end of the tether in a circular, or approximately circular motion along the surface of the water. The decoys then move back and forth on the surface of the water.

Abstract: A realistic looking waterfowl decoy has repositionable head and body portions to enable members of a group of decoys to be placed in a variety of positions to mimic a resting flock of real birds, for example, geese. At least portions of the bodies, as well as the necks and heads, of the decoys can have faux feathers adhered to their surfaces to more accurately simulate real waterfowl. A preferred embodiment of the decoy assembly has oblate spheroid end portions formed on attachment portions of both the legs and a keel member which allow the decoy assembly to be alternatively adapted for use both on land and in the water.

Abstract: A system and method for providing floating decoys is described. The system includes a mechanism for moving tethered decoys in a motion that mimics the natural movement of floating waterfowl. The mechanism includes a motor that moves one end of the tether in a circular, or approximately circular motion along the surface of the water. The decoys then move back and forth on the surface of the water.

Abstract: An ant bait stake is provided having two components including an outer housing and an inner bait pack or reservoir that is separate from the outer housing. The outer housing has a main component and a minor component. The main component includes a bait pack compartment for receiving the bait pack, and a ground engaging stake. The minor component includes a door coupled along one edge to the bait pack compartment by a living hinge. The door and bait pack compartment include complementary structures that securely seal the bait pack compartment once the bait pack has been placed in the compartment and the door closed. A neck portion with an access channel to the bait pack therein has a break-away tab that extends outwardly of the housing, the tab being removable by the consumer without any tools or other devices when the ant bait stake is ready for use.

Abstract: A biomass processing method including: feeding biomass to an upper reactor inlet; adding liquor to the biomass to create a liquid level below an upper biomass level; treating the biomass; discharging the treated biomass from a bottom reactor outlet; as the biomass flows downward from the biomass upper level to the bottom outlet, moving the biomass between a plurality of pairs of support plates, wherein (i) the pairs of support plates are arranged at different elevations, (ii) the plates of each pair are mounted to sidewalls at a slope with respect to the sidewall that converges the plate inwardly towards an opposite plate along a downward direction, and (iii) each pair of plates converges along a single direction; increasing biomass compaction as the biomass flows between each pair of plates; rapidly releasing compressive forces on the biomass as the biomass flows pass lower edges on each pair of support plates.

Abstract: A fuel additive composition includes a polyalkenylsuccinimide, a mono or polyfunctional polyisobutene amine, and a carrier oil selected from the group of mineral oils, polyethers, polyetheramines, esters, and combinations thereof. The polyalkenylsuccinimide includes the reaction product of a hydrocarbyl dicarboxylic acid producing reaction intermediate and a nucleophilic reactant. The hydrocarbyl dicarboxylic acid producing reaction intermediate includes the reaction product of a polyolefin comprising C2 to C18 olefin units and having a number average molecular weight (Mn) of about 500 to 5,000 g/mol and a C4 to C10 monounsaturated acid reactant. The hydrocarbyl dicarboxylic acid producing reaction intermediate includes from 0.5 to 10 dicarboxylic acid producing moieties per molecule of the polyolefin. The nucleophilic reactant is selected from the group of amines, alcohols, amino alcohols, and combinations thereof.

Abstract: The present invention relates to the use of a polyester which bears hydroxyl groups and is preparable by polycondensation of a polyol containing two primary OH groups and at least one secondary OH group with a dicarboxylic acid or anhydride thereof or ester thereof bearing a C16- to C400-alkyl radical or a C16- to C400-alkenyl radical as an antifoulant in the thermal treatment of liquid hydrocarbon media in the temperature range from 100 to 550 DEG C.

Abstract: The invention relates to a process for obtaining energy from organic-containing waste materials (1).

Abstract: A process for controlling a unit for torrefaction of biomass particles including: measurement of a mean diameter of the biomass particles; as a function of the mean diameter, calculation of a maximum torrefaction temperature for which the ratio of a characteristic time of the torrefaction to a characteristic time of the heat transfer at the level of the particles is equal to a minimum value; adjusting the torrefaction temperature to a value less than or equal to the maximum torrefaction temperature; adjusting the torrefaction time to a value such that the final yield by weight of the torrefaction is equal to a predefined target value.

Abstract: A novel strain of Pleurotus nebrodensis (Daewang No. 1, Accession No.: KACC93181P) and a method for cultivating it are provided. The novel strain of Pleurotus nebrodensis is different from the existing Pleurotus ferulae in shape and physiological characteristic, has an extra after-ripening period, can be grown at a low temperature of 22 to 25° C. and a low water content (RH) of 60 to 650, can be cultivated in slightly acid environment of pH 5.5 to 6.5, can utilize bottle cultivation, and has a good shape not to be easily damaged in packaging. Thus, the novel strain of Pleurotus nebrodensis according to the present invention have good commercial value, are more resistant to environmental change, and can be mass produced by automation system.

Abstract: The invention relates to a method of impacting the fruit production of a plant or crop by applying short-duration thermal shock streams of hot air to the plant periodically to impact the flavonoid biosynthetic pathway mechanisms in a plant thereby improving its fruit. The method includes the steps of (1) passing by the plant in a row at a speed of 1-5 mph in an improved Thermal Plant Treatment (TPT) machine, (2) ejecting from the TPT machine at least one hot stream of air in the direction of the unit plant area for no more than 15 seconds per unit plant area per pass, (3) optionally measuring the thermal shock profile that the plant is subjected with thermal sensors, and (4) repeating the thermal shock profile treatment steps (1) and (2) at pre-determined regular intervals over at least a fraction of the crop year.

Abstract: The present invention relates to a container for propagating growth of seedlings, having a main body comprising a base, a central wall extending vertically from the base. A first wall section and a second wall section are arranged to the main body. The first wall section and the second wall section are hingeably connected to the main body. The base, the central wall, the wall sections forms in the closed condition at least two cells being open at top. The base comprises a sup-porting structure at the lower part of the main body, wherein the main body is provided with supporting means for holding an irrigation mat. The present invention also relates to a tray designed for receive and carry one or more of said containers, a greenhouse including the tray and one or more of the mentioned containers, and a method for propagating growth of seedlings.

Abstract: Purpose of Invention. The invention is a simple support for vine and tomato plants. It comprises a central support that could be wood, plastic, or bamboo with holes to accept the universal hook. The hook is self supporting on the pole. Description of Problem(s) Solved by Invention. The post/pole and universal hook system is a direct replacement for any cage or cage like support systems. It is very simple and easy to use. All components are reusable and should provide years of service. With the use of wooden or bamboo poles the support system is a “greener” alternative to a cage system. How the Invention is an Improvement over Existing Technology. There are several types of cages or vine plant supports, but the majority of them are not adjustable or applicable to a variety of plants. For a cage system, harvesting of vegetables is sometimes difficult.

Abstract: Disclosed is a modular aeroponic system that accommodates different support-mediums and misting or spray configurations. In one embodiment, the disclosed system comprises: a root chamber with plumbing that is coupled to a nutrient distribution system; a first interchangeable-lid for the root chamber that functions as a first type of support medium; a second interchangeable-lid defined a surface by a plurality of net pot receptacles for retaining a plurality of net pot support mediums; a first spray-nozzle manifold that may be removably coupled to the plumbing of the root chamber and featuring spray nozzles in a first configuration; a second spray-nozzle manifold that may be removably coupled to plumbing of the root chamber and featuring spray nozzles in a second configuration; wherein the first and second lid may be interchangeably applied to the root chamber; and wherein the first and second manifold may be interchangeably coupled to the root chamber's plumbing.

Abstract: The invention relates to a shaft gasifier for producing fuel gas from solid carbonaceous material. The shaft gasifier comprising a shaft wall surrounding a shaft gasifier interior, a pyrolysis zone disposed in the shaft gasifier interior, the pyrolysis zone comprising a solid material feed opening for feeding solid carbonaceous material into the shaft gasifier and a solid material discharge opening for discharging partially gasified solid carbonaceous material and a gas discharge opening for pyrolysis gas, an oxidation zone which is disposed in the shaft gasifier interior and which is in thermal contact with the pyrolysis zone, the oxidation zone comprising a gas feed opening connected to the gas discharge opening of the pyrolysis zone for discharging pyrolysis gas out of the pyrolysis zone, and a gas discharge opening. The oxidation zone is disposed between the pyrolysis zone and the shaft wall.

Abstract: A universal locking device for securing flat or corrugated hurricane storm panels in place to avoid unauthorized removal and entry into a building. The locking device includes a combination of brackets removably secured between the building and the storm panels, and an adjustable locking bar locking these elements securely together.

Abstract: A roller assembly (1) for supporting a panel (62), including a coupling (5) for connecting the assembly (1) to the panel (62) and a roller (3) for transferring the weight load of the panel (62) to a sill (30), the roller (3) being received in the sill (30) and oriented for rotation about an axis (38) which extends in a direction of the weight load. The invention also relates to a sill and panel assembly for use with the roller assembly.

Abstract: An example of a sill assembly for a door frame includes a sub sill extending along a generally horizontal sill axis. The sub sill includes a sub sill upper portion. A base sill extends along the sill axis. The base sill is mounted to the sub sill and clads at least a portion of the sub sill upper portion. The base sill includes at least one base sill clip member. A step sill extends along the sill axis. The step sill includes an axially extending step sill upper surface positioned above the base sill, and at least one step sill clip member removably engaged with the base sill clip member to removably mount the step sill to the base sill.

Abstract: A seal for use in a fenestration system including: a seal base; an elongated, resilient bulb member; wherein: the stem portion of the seal base and the resilient bulb member are mechanically connected to each other; the bulb member includes an exterior bulb wall with an interior surface, and a first interior wall; the exterior bulb wall defines an interior space; the first interior wall separates and at least partially defines a first chamber and a second chamber within the interior space of the exterior bulb wall; the first interior wall comprises a first set of at least two internal support flaps connected to a first side of the first interior wall extending in the same direction away from the first side of the first interior wall into the first chamber; and the interior surface comprises a second set of at least two internal support flaps extending in the same direction away from the interior surface into the second chamber.

Abstract: A seal for use in a fenestration system including: a seal base; an elongated, resilient bulb member defining a longitudinal direction and a transverse direction; wherein: the stem portion of the seal base and the resilient bulb member are rigidly directly mechanically connected to each other; the bulb member includes an exterior bulb wall with an interior surface, a first interior wall, and a second interior wall; the exterior bulb wall defines an interior space; the first interior wall and the second interior wall separate and at least partially define a first chamber, a second chamber, and a third chamber within the interior space of the exterior bulb wall.

Abstract: A seal for use in a fenestration system including: a seal base; an elongated, resilient bulb member defining a longitudinal direction and a transverse direction; wherein: the stem portion of the seal base and the resilient bulb member are rigidly directly mechanically connected to each other; the bulb member includes an exterior bulb wall and a first interior wall; the exterior bulb wall defines an interior space; the first interior wall separates and at least partially defines a first chamber and a second chamber within the interior space of the exterior bulb wall; one of the first chamber or the second chamber comprises a foam filling.

Abstract: A load bearing structure including a first fixed net layer, a second fixed net layer and a non-linear structure in between. The first fixed net layer may include a first layer of flexible, drapable fabric and a fixing material that fixes the shape of the first layer of flexible, drapable fabric. The second fixed net layer may include a second layer of flexible, drapable fabric and a fixing material that fixes the shape of the second layer of flexible, drapable fabric. The non-linear reinforcing structure may be in communication with the first and second fixed net layers and may be configured to share with the first and second fixed net layers a load applied to the load bearing structure.

Abstract: The present disclosure relates to a building structure having a convertible roof with at least one moveable roof section. The moveable roof section can include an integrated overhang. The moveable roof section can also include a roller that rides on a track formed by an angle member. The convertible roof can further have a configuration that reduces rafter visibility.

Abstract: Frictional Non Rocking Seismic Base Isolator For Structure Seismic Protection (FNSI) is a seismic protection isolator installed under foundations or columns of a building or other structure. FNSI separates a building or other structures from ground seismic motions and passes slight fraction of seismic forces to the superstructures so that the superstructure protected from earthquake induced damages. FNSI consists of three main parts, a Sliding Hammer fixed into ground, a Rotating Anvil, RA, and a Hook fixed to the superstructure, wherein contacted moving surfaces are so smooth for effective isolation. Seismic motions shake the sliding hammer which imitates ground motions and causes RA to rotate around center of the Hook convex or concave, and to simultaneously vibrate in vertical direction. RA movements cause the isolated superstructure to move vertically and slightly horizontally where the vertical vibrations can be accommodated by increase in material strength when responding to short term loading.

Abstract: The present invention relates generally to photovoltaic devices. The present invention relates more particularly to photovoltaic roofing products in which a photovoltaic element is joined to a roofing substrate. In one embodiment, the present invention provides a photovoltaic roofing element comprising: an encapsulated photovoltaic element having a top surface and a bottom surface, a top layer material at its top surface and a bottom layer material at its bottom surface; a roofing substrate having a top surface; and a tie layer system disposed between the encapsulated photovoltaic element and the roofing substrate and joining the bottom surface of the encapsulated photovoltaic element to the top surface of the roofing substrate.

Abstract: A system for mounting at least one solar panel on a roof may include a plurality of panel mounting brackets each including a base to be positioned on the roof having a first opening(s) therein, and a vertical extension having a proximal end coupled to the base, a distal end, and a central portion extending between the proximal and distal ends. The distal end may define a fastener channel having a fastener slot opening vertically aligned with the first opening(s) in the base. The central portion may include a cross member(s) defining a second opening(s) therein vertically aligned with the fastener slot opening and the first opening(s) in the base. The system may further include a bracket fastener(s) to be inserted through the fastener slot opening, the second opening(s), and the first opening(s) of a respective panel mounting bracket and coupled to the roof.

Abstract: A method for providing an anti-slip surface for a step comprising providing a thin thermoplastic material sheet matrix and a design appliqué of a contrasting material or materials, applying the matrix and the appliqué to a step and heat fusing the matrix to the step and the appliqué to the matrix, and an appliqué used in such a method.

Abstract: A door frame reinforcement assembly for resisting an intrusive force applied to a building door has a pair of opposing elongated jamb members and elongated reinforcement members securable with a respective jamb member. Each of the jamb members has a pair of rabbet milled step-up cutouts. One of the cutouts receives a long screw threadably engaging the jamb member with the walls studs. The reinforcement members are secured within the second cutout. The reinforcement members are formed as metal tubes with an insert.

Abstract: A ceiling trim can be used as a track for wiring is formed of two extruded components where the first defines an angle member for engaging the ceiling and the wall and the second defines a front face portion forming a required shape of the crown molding and having a side edges thereof arranged to be located at or closely adjacent the ceiling and the wall. The components are fastened together by strip members on the second which engage behind clip portions. A third component which carries a track to receive clips bridges the corner of the first component and fastens across flanges. This can be removed and replaced by spaced clips. The spacing of the two components can be adjusted to change a spacing of the side edges from the wall to allow illumination to escape.

Abstract: A retractable curtain system including a first curtain region, a motor assembly and a mounting arm assembly. The first curtain region is capable of substantially covering the at least one opening when in an unrolled configuration. The motor assembly operably is attached to the first curtain region for moving the first curtain region between the unrolled configuration and a rolled configuration. The mounting arm assembly includes at least one mounting arm for pivotally mounting the motor assembly with respect to the building.

Abstract: A field-deployable construction set for the assembly of a Relocatable Habitat Unit (RHU), used for simulating real world environments without costly construction expenses. The various panels, supports, and accessories used to construct an RHU provide the user with innumerable options for floor plans and building design, further providing significant options for reconfiguration of floor, ceiling, and wall panels without having to disassemble the structure. The exterior composition of the expanded polymer foam is customizable to provide a realistic environment for high quality training in a versatile system that is deployable by truck or aircraft and can be assembled with only a single tool.

Abstract: A hollow tubular joist structure, a joist assembly including a plurality of aligned repetitive tubular joist structures, and a method of constructing this joist assembly. The tubular joist structure may include any suitable cross-sectional geometry. The joist structure includes a tubular top chord; a tubular bottom chord; and, a plurality of diagonals extending between the tubular top chord and the tubular bottom chord. The diagonals may also be tubular. The diagonals are arranged in a zig-zag formation between the tubular top chord and the tubular bottom chord. The tubular top chord may be capable of receiving a power actuated fastener (PAF). The tubular top chord or the tubular bottom chord may also be capable of receiving a utility conduit.

Abstract: In a beam-connection member 9, the bottom surface side is a column-connection surface 14 and one side surface is a beam-mounting surface 16. In other words, the column-connection surface 14 and the beam-mounting surface 16 are formed to be substantially perpendicular. The column-connection surface 14 is the site of connection with a surface of the column. A depression 15 is formed on the column-connection surface 14. The depth of the depression 15 is preferably at least half of the main body thickness of the beam-connection member 9. Further, a notch 11 is formed across the width direction on the column-connection surface 14. The notch 11 is to avoid interference with the diaphragm. Near the notch 11, a rib 17 is provided in the depression 15 as necessary in the width direction. The rib 17 is for preventing deformation of the beam-connection member and for reinforcing the beam-connection member.

Abstract: According to one aspect of the present disclosure, a load bearing structural assembly includes an outer loop member; an inner loop member spaced apart from and sized smaller than the outer loop member; and a web assembly coupled to and extending between the outer loop member and the inner loop member, the web assembly comprising a plurality of arcuately formed web members.

Abstract: An apparatus for supporting brace members between a plurality of adjacent parallel spaced apart joists wherein each of the joists extends between top and bottom edges comprises a joist engaging cup adapted to receive one of the top or bottom edge of the joist therein and a brace supporting platform angularly extending from each side of the cup in a direction towards the other of the top or bottom edge of the joist. A plurality of brace members may be sized to be received on the brace supporting platforms and extend diagonally between a top and bottom edges of adjacent joists.

Abstract: A method for constructing such house is disclosed. The components of the house such as the finished product main frame, the finished product enclosed wall, the finished product floor cover plate, the finished product top cover plate and the finished product stair are finished product industrially constructed in different manufactories, and then transported to the constructing location respectively, and then assembled at the base of the house, so as to form a house constructed from finished product components. By using finished product components, the construction of the house has high efficiency, good quality, less material consumption and shorter construction period. Furthermore, comparing with traditional site operation, constructing house from finished product components is more environment-friendly.

Abstract: A shingle insert and method for eliminating and preventing growths on a shingled roof in which copper strips forming the inserts are installed with an upper edge disposed beneath a course of shingles with the remaining portions of the insert exposed. The insert strips have a confined space defined beneath a stiffening lengthwise extending arched hump formed in the exposed copper strip portions which has an array of elongated indentations formed therein with slits therein to allow slow drainage of water impounded by the arched hump through the inserts may contain a growth toxic material, in solid or granular form which releases a substance toxic to the growths when rainwater runoff passes into the confined space and over the material and thereafter flows out down the roof.

Abstract: A system and apparatus for construction interior partitions including a generally U-shaped horizontal track profile including a horizontal base extending to outside rails, a central channel in which to receive a shim and/or panel element and opposing channels in which to secure a gasketed panel retainer. Vertical framing elements at each end of a partition likewise provide side mounted channels with a cooperative channel in which a panel retainer may be secured. With track and framings in place the panel retainers on a first side are installed followed by the panel elements, optionally butt-jointed, and finally the opposing panel retainers. Additionally, a track support element and fastener catch is disclosed to allow a side-mounted sliding door track or other component to be face mounted (screwed) directly therein.

Abstract: A panel for a building form made of insulating material such as polystyrene is integrated with a reinforcing member for enabling the panel to resist deformation due to forces applied against its concrete-facing surface. Reinforcement of floor/roof panels is beneficial to reduce the amount of, or eliminate the need for, shoring for supporting the weight of wet concrete or workers. The reinforcement resists against deformation due to cracking, splitting etc. Reinforcement is likewise beneficial for wall forms where the weight of concrete asserts significant pressure against the concrete-facing surface of the form, in order to resist deformation of the wall forms under pressure. The reinforcing member may be made of a plastic material such as polypropylene or high-impact polystyrene. Methods of manufacturing reinforced form panels are disclosed.

Abstract: A method for automatic packaging of sanitary articles (A) in at least one first type of package (I) and one second type of package (II) containing, respectively, a first number of articles and a second number of articles, envisages: providing a flow of incoming articles (A); diverting (10) articles from said flow of articles with a ratio between non-deflected articles and deflected articles that is a function of the ratio between the aforesaid first number and the aforesaid second number, generating a main flow of non-deflected articles (A) that may be packaged in the packages of the first type (I) and a derived flow of deflected articles that may be packaged in the packages of the second type (II).

Abstract: A load port device comprises a link mechanism that has a main moving link whose one end is connected with a door holding member in a rotatable manner, a guide that bends and extends from a horizontal direction to a vertical direction and that guides one end of the main moving link, a main moving block with which the other end of the main moving link is connected in a rotatable manner and a door hoisting shaft that extends in the vertical direction and that moves the main moving block in the extending direction. The link mechanism allows the end of the main moving link to move from the horizontal direction to the vertical direction or from the vertical direction to the horizontal direction along the guide in a state that the other end of the main moving link moves to the vertical direction.