99results about "Paperhanging" patented technology

The present invention discloses a sand grain wall cloth, a construction device, and a construction method, comprising a movable base, a glue storage cylinder, and a glue storage cylinder that utilizes a delivery pump to store and transport glue for wall coating. The bottom end of the glue storage cylinder is fixedly connected to the movable base, and the top of the glue storage cylinder is connected to a telescopic conduit. The end of the telescopic conduit away from the glue storage cylinder is connected to a glue coating tube. Both ends of the glue coating tube are rotatably connected to an expansion frame. The position of the expansion frame near the glue coating tube is rotatably connected to a cloth pressing rod. The position of the expansion frame away from the cloth pressing rod is rotatably connected to a laying assembly. The present invention relates to the field of wall cloth construction technology. In the sand grain wall cloth and the construction device, a cloth feeding frame receives and fixes the wall cloth transported by the placement box and the protective assembly, facilitates the cooperation between the cloth feeding frame and the cloth pressing rod to improve the wall cloth leveling effect, prevents the wall cloth from being scratched during leveling, and thereby ensures that a gap is unlikely to appear between the two wall cloths after installation, causing the wall surface to be exposed, further improving the quality of the wall cloth installation.

A method of reusing building boards used to form a structure, such as a wall or a ceiling, of a building, wherein at least one surface covering liner (4) is directly glued against an entire exposed main surface (11, 12) of building boards (S1, S2), such that the surface covering liner covers the building boards (S1, S2), wherein said gluing was performed using a soluble glue. The method comprises: applying (301) a solvent to the surface covering liner (4), including the glue, removing (302) the surface covering liner (4), whereby the fasteners (3) are exposed, removing (303) the fasteners (3), and recovering (304-306) the building boards (S1, S2).

The utility model relates to the technical field of archive files, and discloses a folding pasting frame for archive files, which comprises a pasting fixing frame, a file fixing mechanism is fixedly arranged in an inner cavity of the pasting fixing frame, and the file fixing mechanism comprises a sliding groove, a threaded rod, a connecting frame, a pressing block, a spring, a clamping hole, a connecting plate, a sliding plate, a fixing plate and a clamping block. According to the folding pasting frame for the archive file, a to-be-repaired file is placed on the bottom plate, then a user presses a pressing block firstly, the pressing block drives a clamping block to move inwards through a connecting plate, the clamping block and a clamping hole are separated from the clamping state, then a sliding plate is dragged, a fixing plate on the sliding plate is moved to the position above the file edge, then a threaded rod is rotated, and then the file is folded and pasted. The threaded rod drives the connecting frame to move downwards, then the connecting frame drives the fixing plates to move downwards through the sliding plate, the multiple fixing plates move downwards to fix a file to the bottom plate, then the file is brushed with glue, and then the papering paper is pasted to the file.

The utility model relates to the technical field of packaging equipment, and particularly discloses a press of a paper mounting machine. Comprising a belt conveying line, a press machine support, an upper conveying belt, pressing rollers, swing arms and tensioning devices, the press machine support is fixedly arranged above the belt conveying line, the multiple pressing rollers are arranged between two longitudinal beams of the press machine support in a swinging mode, and the tensioning devices are arranged between the two ends of each pressing roller and a rack of the belt conveying line; the tensioning device is arranged between the pressing roller and the belt conveying line, extra downward pressure is provided for the pressing roller, the pressure on paperboards is larger, the attaching firmness degree of surface paper can be improved, the upper conveying belt is of a net-shaped structure, moisture in glue can be diffused into the environment, drying and curing of the glue are facilitated, the probability that the surface paper is not tightly attached is reduced, and the service life of the surface paper is prolonged. And the yield is improved.

To provide a wallpaper carrier which can be carried and assembled only with the wallpaper carrier and does not fall over by itself. [Solution] The wallpaper carrier consists of a box body and six partition plates. The box body is composed of a front surface 6, a pair of side surfaces, a back surface 8, a bottom surface 9, and a liner 10. Three folding lines are provided on the sides of the box body, and by folding along the folding lines, the box body is transformed into a rectangular shape, leaving storage space for the partition plates, and the bottom surface is integrated with the box body as a plate member. A fixing portion 9a for fixing the bottom surface 9 is provided on the bottom surface, and the fixing portion extends by a width sufficient to cover the side surface when the box body is folded into a rectangle. The liner is provided to prevent the bottom from deforming due to the number and positional imbalance of paste-on wallpaper stored inside the box during assembly. When assembling the box, the liner portion first covers the bottom surface, and the bottom surface then covers over that.

The utility model relates to the technical field of building decoration, in particular to a wallpaper pasting auxiliary tool for building decoration. According to the technical scheme, the device comprises a first motor, a bottom plate, a sleeve, a mounting frame and a stroke plate, guide pipes which are symmetrically distributed are arranged at the upper end of the bottom plate, the mounting frame is arranged above the bottom plate, the stroke plate is arranged in the mounting frame, guide sleeves are arranged at the two ends of the mounting frame, a fixing plate is arranged on the rear side of the stroke plate, and a scraping plate is arranged in the fixing plate; a first motor is arranged at the upper end of the bottom plate, a first screw is arranged at the upper end of the first motor, the outer wall of the first screw is rotationally sleeved with a nut, a supporting plate is arranged on one side of the upper end of the nut, a sleeve is arranged at the upper end of the supporting plate, and an adaptive rod is slidably inserted into the sleeve. According to the utility model, through the guide scraping plate and the adjusting rod which is stable with the wall body, the problems that the construction time is long, bubbles and wrinkles are easy to appear, the pasting position is inaccurate and the decoration effect is influenced due to manual pasting are solved.

Devices configured to operate on an angled surface (e.g., a roof), and associated systems and methods are disclosed herein. In some embodiments, representative systems include an apparatus with a body assembly, an arm assembly coupled to the body assembly, and a material handling assembly coupled to the arm assembly. The body assembly can include a body frame, and a plurality of positioning assemblies coupleable to cables and configured to position and / or orient the body frame on the surface. The arm assembly includes a proximal end portion rotatably coupled to the body portion and a distal end portion opposite the proximal end portion. The material handling assembly is coupled to the distal end portion of the arm assembly and is configured to carry a surface material to be positioned on the angled surface.

Devices configured to operate on an angled surface (e.g., a roof), and associated systems and methods are disclosed herein. In some embodiments, representative systems include an apparatus with a body assembly, an arm assembly coupled to the body assembly, and a material handling assembly coupled to the arm assembly. The body assembly can include a body frame, and a plurality of positioning assemblies coupleable to cables and configured to position and / or orient the body frame on the surface. The arm assembly includes a proximal end portion rotatably coupled to the body portion and a distal end portion opposite the proximal end portion. The material handling assembly is coupled to the distal end portion of the arm assembly and is configured to carry a surface material to be positioned on the angled surface.

The indoor decoration wallpaper pasting device comprises a moving table and a lifting frame arranged on the moving table, a movable block is movably arranged on the lifting frame, a supporting plate, a flattening assembly and a cleaning mechanism are arranged at one end of the movable block, and the flattening assembly and the cleaning mechanism are arranged at one end of the supporting plate. Universal wheels are arranged at the lower end of the moving table; the cleaning mechanism comprises a hinge seat installed on the supporting plate and a positioning frame used for being hinged to the hinge seat, connecting rods are symmetrically and fixedly connected to the positioning frame, a roller brush is rotationally connected between the two connecting rods, and a micro motor used for being connected with a roller brush shaft rod is arranged on each connecting rod. According to the indoor decoration wallpaper pasting device, the movable block drives the roller brush to clean the surface of a wall body, the higher the movable block moves upwards, the higher the roller brush can clean the surface of the wall body located at a high position, and the pasting efficiency of a worker on wallpaper is improved.

The invention relates to a wallpapering device (10) for wallpapering. A wallpapering brush (12) of the wallpapering device (10) has a brush body (14) and wallpapering bristles (18). The wallpapering bristles (18) are located on an underside (16) of the brush body (14). A connecting element (28) holds a seam roller (26) of the wallpapering device (10) to the brush body (14). A spatula (32) of the wallpapering device (10) is firmly attached to the brush body (14).

The invention discloses automatic wallpaper paving equipment which comprises a traveling mechanism, a lifting frame body, a wallpaper roll, a paper feeding mechanism, a gluing mechanism, a main supporting column, a jacking mechanism and a rewinding mechanism, the paper feeding mechanism is responsible for forward feeding of wallpaper, the gluing mechanism completes gluing of the surface of the wallpaper, the rewinding mechanism completes feeding and tightening of the wallpaper, the jacking mechanism completes pasting of the wallpaper, and the main supporting column is used for supporting the wallpaper roll. The invention further discloses a wallpaper paving and pasting method, the wallpaper paving and pasting method can be suitable for wallpaper engineering of any layer height, all the processes of feeding, airing and pasting can be completed through automatic and informationized means, and the wallpaper paving and pasting efficiency is improved. The top and the bottom of the pasted wallpaper are adaptively corrected only according to a ceiling skirting method designed by a building during manual operation, and the overall automation degree is extremely high.

The invention discloses a wallpaper paving and pasting device suitable for an indoor decoration wall surface and a construction technology of the wallpaper paving and pasting device, and relates to the field of building decoration construction, the wallpaper paving and pasting device comprises an electric lifter and a storage box fixedly arranged on one side of the electric lifter, and a bottom plate is fixedly arranged at the lower end of the side, away from the electric lifter, of the storage box; clamping mechanisms used for clamping wallpaper are fixedly arranged on the two sides of the top end of the bottom plate, a slicking mechanism used for slicking the laid wallpaper is movably arranged on the side, away from the storage box, of the bottom plate, and a cutting mechanism used for cutting the attached wallpaper is movably arranged on one side of the slicking mechanism. The wallpaper roll is driven by the electric elevator and the motor to discharge paper to brush glue at the rolling brush, the slicking mechanism slicks the pasted wallpaper, the clamping block clamps the wallpaper, the sliding block drives the blade to cut the wallpaper attached to the wall surface, paving, glue brushing, slicking, clamping and cutting are integrated, the construction efficiency is improved, the construction period is shortened, and meanwhile the construction cost is reduced. And the wallpaper paving quality is improved.

The present invention discloses an automatic paper feed mechanism with corrected alignment and a control method, comprising a facial paper feeder head, a cardboard feeder head, a first servo drive device, a second servo drive device, and a correcting mechanism; a cardboard conveyor belt is provided in front of the cardboard feeder head, a facial paper conveyor belt is provided obliquely above the cardboard conveyor belt, and a facial paper alignment mechanism and a cardboard alignment mechanism are provided at the ends of the facial paper conveyor belt and the cardboard conveyor belt, respectively; the facial paper feeder head and the cardboard feeder head are controlled by the first and second servo drives to feed facial paper and cardboard onto the facial paper conveyor belt and the cardboard conveyor belt, respectively, so that the facial paper alignment mechanism and the cardboard alignment mechanism align and laminate the facial paper and cardboard; the correcting mechanism comprises a facial paper correcting device and a cardboard correcting device, which are respectively provided on the facial paper alignment mechanism and the cardboard alignment mechanism. The present invention can adapt to different sizes of paper, improve the alignment accuracy of continuous paper feeding and laminating, and effectively improve production efficiency.

According to the sticking type wall cloth sticking auxiliary device, when wall cloth is stuck, firstly, a protective film at the end of the wall cloth is torn, the end of the protective film is stuck to the second winding drum, the end of the wall cloth is pulled to pass through the bottom of the pressing roller to be stuck to the wall face, then the wall cloth is held on the first holding handle with one hand, and the second holding handle with the other hand is held on the second holding handle with the other hand; the pressing roller is arranged on the wall cloth attached to the wall surface, finally, the pressing roller is tightly pressed by force to pull the U-shaped support to move, the pressing roller can tightly press the wall cloth on the wall surface for pasting, the wall cloth can be flattened while pasting is conducted, a scraping plate does not need to be used for scraping flattening subsequently, meanwhile, the pressing roller rotates, a belt wheel and a belt can be used for driving a second winding drum to rotate, and a protective film is wound. And the protective film is more convenient to collect.

The Peel and Stick Installation Device is a hand-held device to aid with the installation of wallcoverings commonly referred to as the “peel and stick” variety. The device controls the adhesive side of the wallcovering, limiting and releasing unwanted contact between the adhesive and the wall until alignment is achieved. It is designed to assist both professional, novice, and beginner wallpaper installers.

The utility model provides a counting device of a paper mounting machine, the paper mounting machine comprises a paper mounting device and a conveying and compacting device which are arranged in sequence, and the joint of the paper mounting device and the conveying and compacting device is of an inclined structure; the counting device comprises a supporting rod arranged at the inclined structure and an elastic guide plate fixed to the supporting rod, a counter is further arranged on the supporting rod, a trigger mechanism is arranged between the counter and the elastic guide plate, and the trigger mechanism is electrically connected with the counter. Compared with the prior art, the full-automatic paper pasting machine has the following beneficial effects that the counting device is additionally arranged between the paper pasting device and the conveying and compacting device and is matched with the weighing device and the feeding counting device mentioned in the background technology, so that three counting results can be obtained, if two counting results are the same, the two counting results are correct results, and the paper pasting machine is convenient to use. And meanwhile, the other device can be judged to be damaged, so that the technical problem that manual re-checking is needed when the technical device of the conventional paper mounting machine is abnormal is solved.

The utility model relates to the technical field of decoration, and disclose a kind of decorative paper smoothing device for decoration, including support, and the flattening roller is rotatably installed on the support, further comprising: handle, fixedly connected on support and outside is provided with antiskid strip;Limiting roller, is provided with two groups and is rotatably connected on the support, support is fixedly connected with the supporting frame of limiting roller support reinforcement, supporting frame is installed with the clamping assembly of the decorative paper film limiting on it;Reinforcing frame, fixedly connected on support;The utility model is installed decorative paper, from top to bottom installation, the paper not pasted in lower part is passed between two limiting rollers, the protective film adhered to the back of decorative paper is fixed on clamping assembly, with flattening roller moves downward, decorative paper is pasted on wall surface, the lower part of decorative paper passes between limiting roller can keep the smoothness of decorative paper, not folded together, while clamping assembly moves downward with flattening roller, the protective film on the back of decorative paper is torn down.

The utility model discloses a paper mounting machine with uniform gluing, and relates to the technical field of paper mounting machines, the paper mounting machine comprises support plates and roofing slate, the support plates are arranged in pairs, the opposite sides of the support plates are fixedly connected with a group of symmetrical glue dripping plates, and the opposite sides of the support plates are movably connected with a group of symmetrical glue uniformizing rollers through rotating shafts. According to the tile plate gluing device, through the arranged gluing mechanism, when a gluing strip makes contact with a tile plate, under the action of a glue suction ring, contact points of the gluing strip and the tile plate are tightly attached, glue on the gluing strip is smeared to the surface of the tile plate, and when the gluing strip makes contact with the tile plate, the glue suction ring is extruded, so that the glue in the glue suction ring flows out; the gluing amount of the gluing strip is increased, glue can be evenly and fully smeared to the surface of the roofing slate, when the gluing strip does not make contact with the roofing slate, the glue suction ring has the good glue storage property, and the situation that redundant glue spills out along with rotation of the gluing strip is avoided.

The wallpaper laminating device for building decoration comprises a base, a mounting frame is fixedly mounted at the top of the base, a threaded rod is rotationally connected to one side of the interior of the mounting frame, and a guide rod is fixedly mounted on the side, away from the threaded rod, of the mounting frame; the outer walls of the threaded rods and the outer walls of the guide rods are slidably connected with moving plates. The device is moved to a working place through universal wheels, the universal wheels are fixed through brake pads, a motor is started to operate, a threaded rod is driven to rotate through the motor, and through cooperation between the threaded rod and a guide rod, rotation of the threaded rod can drive a moving plate to move up and down in a reciprocating mode; the movable plate can drive the pressing roller to move up and down in a reciprocating mode, the pressing roller can be extruded towards the wall body through the compression spring, therefore, wallpaper is attached to the outer portion of the wall body, the danger caused by the fact that workers need to use tools for heightening is reduced, and potential safety hazards of the workers are effectively guaranteed.

The utility model relates to the technical field of painting and calligraphy mounting, in particular to a painting and calligraphy mounting device which comprises a supporting frame, a smoothing assembly, an operation supporting top plate and a cutting assembly. The cutting assembly is connected to the smoothing assembly; the cutting assembly comprises a mounting rod, the mounting rod is connected with a frame body, the frame body is hollow, the upper and lower parts of the frame body are provided with openings a communicated with the outside, one side of the frame body is provided with an opening b, the frame body is internally connected with a moving block, the moving block is connected with a pressing plate, the pressing plate penetrates through the opening b to be connected to the outside and is connected with a spring, and the lower end of the spring is connected to the inner wall of the opening b; the movable block is connected with a fixing plate, the fixing plate is provided with a mounting groove, the mounting groove is connected with a cutter, and the cutter movably penetrates through an opening a in the lower portion of the frame body to be connected to the operation supporting top plate and used for cutting redundant edges of a chopping board and a back board used for painting and calligraphy mounting. According to the calligraphy and painting mounting device, redundant chopping boards and back boards are cut through the cutting piece by using the cutting knife, so that the use structure of the calligraphy and painting mounting device is conveniently improved, and the calligraphy and painting mounting working efficiency is improved.

The wall cloth flattening device for decoration comprises a flattening frame, the two sides of the flattening frame are in an L shape, the rear end face of the flattening frame is fixedly connected with a pair of handles, the front end face of the flattening frame is fixedly connected with a pair of double-screw bolts, the double-screw bolts are in threaded connection with nuts matched with the double-screw bolts, a heating assembly is arranged between the double-screw bolts, and the handles are fixedly connected with the double-screw bolts. A movable plate is arranged above the heating assembly, a plurality of springs are fixedly connected between the rear end face of the movable plate and the front end face of the flattening frame, and a flattening assembly is arranged on the movable plate. According to the wall cloth flattening device, wall cloth can be flattened through pressure jointly applied by the roller and the flattening plate, the flattening effect is good, the flattening structure is adjustable, the wall cloth flattening device can adapt to wall surfaces of different materials and different flatness, all the assemblies are convenient to disassemble, daily maintenance and cleaning are convenient, and meanwhile relevant parts can be conveniently overhauled and replaced when faults occur.

To provide an automatic wall paper glue application machine whose leg frame slowly changes from the closed condition (closed leg condition) to the open condition (opened leg condition) without opening at 90 degrees in a pendulum motion due to its weight, even when the leg frame is released from the locked condition with the leg frame closed (closed leg condition).SOLUTION: A wall paper glue application machine main body 12 that is designed to automatically apply glue on the back side of wall paper, a leg frame 16 that is journaled so as to open and close against the wall paper application machine main body 12, and an open / close controlling device 100 that controls opening and closing of the leg frame 16 against the wall paper glue application main body 12 are provided. The open / close controlling device 100 is designed to bias the leg frame 16 in the direction where it closes against the wall paper glue application main machine 12.SELECTED DRAWING: Figure 3

The utility model provides a wallpaper pasting device, and relates to the technical field of building decoration, the wallpaper pasting device comprises a cart, the bottom end of the cart is provided with rollers, the middle upper end of the cart is provided with a storage box, the middle section of the cart is provided with a feeding assembly, and the top end of the cart is provided with a delivery assembly; the delivery assembly comprises supporting rods, hydraulic oil cylinders, a positioning plate, a clamp and bolts, the supporting rods are installed on the two sides of the cart, the hydraulic oil cylinders are arranged at the upper ends of the supporting rods, the positioning plate is arranged at the driving ends of the hydraulic oil cylinders, the clamp is arranged at the upper end of the positioning plate, and the bolts are arranged in the middle of the clamp in a penetrating mode; connecting plates are connected to the two sides of the delivery assembly, a hydraulic oil cylinder is started, wall cloth paper in the middle of a positioning plate and a clamp is driven to rise to the top of a wall, the wall cloth paper is effectively delivered to the top of the wall, manual delivery of the wall cloth paper is avoided, and the wall cloth paper attaching speed of a user is greatly reduced.

The invention relates to an indoor soft wall cloth laminating device, which belongs to the technical field of wallpaper laminating and is used for laminating wall cloth to a wall surface. The top seam piece is arranged on the top side of the mounting bracket; the first compression roller is arranged on the mounting bracket and is positioned on the lower side of the top seam piece; the discharging roller is arranged on the mounting bracket, and the wall cloth is wound on the discharging roller; wherein the wall cloth sequentially passes through the first pressing roller and the top seam piece through the discharging roller, the top seam piece is used for pressing the wall cloth to the seam of the wall face, and the first pressing roller is used for pressing the wall cloth to the wall face. The edge of the wall cloth is accurately pressed into and attached to the wall surface seam through the seam abutting piece, the problem that in the prior art, a cylindrical pressing roller cannot fully press the wall cloth into the wall surface seam is effectively solved, and the attaching quality of the corner area is ensured.

Compared with the prior art, the soft package edge sealing traction auxiliary tool disclosed by the utility model has the following beneficial effects that a manual hand pulling mode is replaced by the traction tool, so that the uniform traction force can be ensured, the uniform tightening force of soft package materials in each area of a plate surface is ensured, the probability of wrinkles is reduced, and the construction efficiency is improved. Comprising a first edge arranged along a straight line, and a plurality of drag hooks are arranged on the first edge at intervals in the extending direction of the first edge; the handle is arranged on the side, opposite to the first edge, of the toothed plate.

The utility model provides a building decoration paper trowelling device which comprises a fixed frame, a motor is fixed to the inner bottom of the fixed frame, the output end of the motor is connected with one end of a lead screw, the other end of the lead screw is rotationally connected to the inner top of the fixed frame, a movable block is in threaded connection with the lead screw, and the movable block is connected with a sliding block. The inner walls of the two sides of the fixed frame are each provided with a vertical groove, the two ends of the moving block are slidably connected into the vertical grooves correspondingly, a mounting base is fixed to the side edge of the moving block, and the inner sides of the two ends of the mounting base are each provided with a mounting groove. The connecting mechanism can release the connecting relation between the supporting rod in the mounting base and the roller at first, then after a brand new roller is replaced, the connecting mechanism can be started again to connect and fix the fixing rod and the supporting rod, and therefore when the roller needs to be replaced, the roller can be rapidly replaced.

The utility model discloses a full-automatic paper mounting machine stable in conveying, and relates to the technical field of printing equipment, the full-automatic paper mounting machine comprises a machine body, the machine body is provided with a surface paper conveying device, a bottom paper conveying device, a gluing and laminating device and a finished product press-fit conveying device, the left side of the gluing and laminating device is connected with the surface paper conveying device and the bottom paper conveying device, and the bottom paper conveying device is connected with the finished product press-fit conveying device. The surface paper conveying device and the bottom paper conveying device are arranged in an up-down layered mode, and the right side of the gluing and attaching device is connected with a finished product pressing and conveying device. A conveying frame is arranged on the surface paper conveying device, the conveying frame comprises a horizontal conveying platform and an inclined conveying platform which are connected with each other, an elastic tensioning mechanism is arranged on the horizontal conveying platform, and a paper suction mechanism is arranged on the inclined conveying platform; the elastic tensioning mechanism for horizontal conveying and the paper suction mechanism for inclined conveying work together to ensure that the surface paper is smoothly and stably conveyed from the horizontal conveying process to the inclined conveying process, and the paper mounting quality and the production efficiency are greatly improved.

The utility model provides a wallpaper laminating device, and belongs to the technical field of wallpaper laminating and flattening tools. The wallpaper laminating device comprises a rolling part and a slicking part. The rolling part comprises a handle, a support and a roller, the roller is rotationally arranged at the front end of the support, and the handle is installed at the tail end of the support. The slicking part is located on the rear side of the roller and comprises a hanging plate piece, a shaft rod, an elastic connecting piece and a sleeving positioning piece, the shaft rod is fixed to the inner side of the support, the shaft rod is sleeved with the sleeving positioning piece, and the elastic connecting piece is connected with the hanging plate piece and the sleeving positioning piece. According to the laminating device, the wallpaper is flattened in a rolling and slicking combined mode. When the extruded area needs to be flattened again, only the rolling part needs to be inclined upwards, the roller is made to repeatedly roll and flatten in the area, and even thin wallpaper is not prone to being damaged in the flattening process.

Spatulas used for applying wall coverings are made of soft materials, such as resin, because they come into contact with the wallpaper. As a result, when using a wall covering spatula to remove air bubbles from the wallpaper, the spatula deforms, making it difficult to transmit force to both ends of the spatula, resulting in insufficient work efficiency. [Solution] A spatula for applying wall coverings, comprising a plate-shaped spatula plate portion and an edge portion whose cross-section, when cut perpendicular to the longitudinal direction of the spatula for applying wall coverings, has a constricted gourd shape, wherein the edge portion is provided at one end of the spatula plate portion, and the other end, the tip portion, is tapered.